WO2021200299A1 - 細胞老化抑制剤、生体組織修復促進剤、遺伝子発現調節剤及び製造方法 - Google Patents
細胞老化抑制剤、生体組織修復促進剤、遺伝子発現調節剤及び製造方法 Download PDFInfo
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- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
- A61K35/28—Bone marrow; Haematopoietic stem cells; Mesenchymal stem cells of any origin, e.g. adipose-derived stem cells
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Definitions
- the present invention relates to a cell senescence inhibitor, a biological tissue repair promoter, and a gene expression regulator using extracellular vesicles derived from mesenchymal stem cells.
- Cellular senescence is a phenomenon in which cells stop dividing, the production of extracellular matrix is reduced, or factors that damage surrounding tissues are released. Since living tissue is maintained by individual cells proliferating and producing extracellular matrix, cellular senescence has a great influence on tissue deterioration. For example, when DNA is damaged due to accumulation of DNA replication errors due to cell division, oxidative stress, radiation, activation of oncogenes, etc., cell growth inhibitory genes such as p53 gene, p21 gene, p16 gene, etc. are caused by the DNA damage response. It is believed that the expression of is increased and cell senescence is caused.
- skin composed of epidermal cells, fibroblasts, extracellular matrix such as collagen, hyaluronic acid, and elastin is particularly affected by ultraviolet rays, dryness, stress, aging, etc. It is thought that the function deteriorates and symptoms such as wrinkles, sagging, and stains occur.
- Extracellular vesicles which are cell-derived small membrane vesicles composed of lipid bilayer membranes, are responsible for cell-cell communication through the transport of nucleic acids such as the encapsulated mRNA and microRNA, or proteins.
- Non-Patent Document 1 Non-Patent Document 1
- mesenchymal stem cells are stem cells having the ability to differentiate into cells belonging to mesoderm-derived tissues (mesoderm). MSCs can be separated from fat, bone marrow, umbilical cord matrix, etc., all of which are adhesive, positive for CD105, CD73, and CD90, CD45, CD34, CD14, CD11b, CD79a, CD19, and It is generally believed that HLA-Class II (DR) is negative and has the commonality of being capable of differentiating into bone, fat, and cartilage.
- MSC mesenchymal stem cells
- Extracellular vesicles may be involved in various diseases.
- extracellular vesicles derived from mesenchymal stem cells obtained by the ultracentrifugation method promote cell proliferation (Non-Patent Document 2), dermal repair (Non-Patent Document 3), and ligament repair (Non-Patent Document 3). It has been reported to promote Document 4).
- the subject of the present invention is a cell senescence inhibitor, a biological tissue repair promoter, a gene expression regulator, which is composed of a population of extracellular vesicles having higher cell senescence inhibitory activity and biological tissue repair promoting activity. To provide an extracellular composition.
- the present inventors diligently investigated extracellular vesicles selectively collected by various methods for obtaining extracellular vesicles, and as a result, the mesenchymal system stimulated by inflammatory cytokines.
- a population of extracellular vesicles derived from stem cells and / and a population of extracellular vesicles having the characteristic of PS positive obtained by a method using a substance having affinity for phosphatidylserine (PS) (PS affinity method)
- PS phosphatidylserine
- the present invention was completed by finding that it has a high cell senescence inhibitory activity as a cell senescence inhibitor, a high gene expression regulatory activity as a gene expression regulator, and a high biological tissue repair activity as a biological tissue repair promoter. I came to let you.
- the basic aspect of the present invention is (1) A cell senescence inhibitor or a biological tissue repair promoter containing extracellular vesicles derived from mesenchymal stem cells as an active ingredient.
- Extracellular vesicles are derived from mesenchymal stem cells stimulated by inflammatory cytokines, or / and extracellular vesicles are obtained by utilizing substances that have an affinity for phosphatidylserine.
- Cellular senescence inhibitor or biological tissue repair promoter (2) One or more tissues in which the mesenchymal stem cells are derived from iPS cells or selected from the group consisting of umbilical cord, umbilical cord blood, bone marrow, fat, muscle, nerve, skin, dental pulp, sheep membrane and placenta.
- the cell aging inhibitor or biological tissue repair promoter according to (1) above which is derived from. (3)
- the mesenchymal stem cells are stimulated by at least one inflammatory cytokine selected from tumor necrosis factor ⁇ , interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18, and interferon ⁇ .
- Agent or biological tissue repair promoter (5) The cell aging inhibitor or biological tissue repair promoter according to (4) above, wherein the substance having an affinity for phosphatidylserine is a Tim protein; (6) The cell senescence inhibitor or biological tissue repair promoter according to (5) above, wherein the Tim protein is selected from Tim4 protein, Tim3 protein and Tim1 protein; (7) The extracellular vesicles are derived from mesenchymal stem cells stimulated with inflammatory cytokines and are obtained by a method using a substance having an affinity for phosphatidylserine.
- the cell senescence inhibitor or biological tissue repair promoter according to (1) or (2) above; (8) The cell senescence suppression or biological tissue repair promotion is selected from cell proliferation promoting action, collagen production promoting or decomposition suppressing action, hyaluronic acid production promoting or decomposition suppressing action, and elastin production promoting or decomposition suppressing action.
- the cell senescence inhibitor or biological tissue repair promoter according to any one of (1) to (7) above, which is due to at least one action; Is.
- the present invention is also a method for producing extracellular vesicles as such a cell senescence inhibitor or a biological tissue repair promoter, and specifically, (9) Obtain extracellular vesicles from mesenchymal stem cells stimulated with inflammatory cytokines, or / and use substances having an affinity for phosphatidylserine from extracellular vesicles derived from mesenchymal stem cells.
- a method for producing extracellular vesicles having an inhibitory effect on cell aging or a promoting effect on biological tissue repair including obtaining extracellular vesicles by a method; (10) One or more tissues in which the mesenchymal stem cells are derived from iPS cells or selected from the group consisting of umbilical cord, umbilical cord blood, bone marrow, fat, muscle, nerve, skin, dental pulp, sheep membrane and placenta.
- the mesenchymal stem cells are stimulated by at least one inflammatory cytokine selected from tumor necrosis factor ⁇ , interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18, and interferon ⁇ .
- Method for producing extracellular vesicles having an action or a biological tissue repair action (13) The extracellular vesicle having the cell aging inhibitory action or the biological tissue repair promoting action according to any one of (9) to (12) above, wherein the substance having an affinity for phosphatidylserine is a Tim protein.
- Method of producing vesicles (14) The method for producing extracellular vesicles having a cell senescence inhibitory action or a biological tissue repair promoting action according to (13) above, wherein the Tim protein is selected from Tim4 protein, Tim3 protein and Tim1 protein.
- the extracellular vesicles are derived from mesenchymal stem cells stimulated with inflammatory cytokines, and are obtained by a method using a substance having an affinity for phosphatidylserine. , The method for producing extracellular vesicles having a cell senescence inhibitory action or a biological tissue repair promoting action according to the above (9) or (10); (16) At least one of the above-mentioned cellular senescence inhibitory action or biological tissue repair promoting action selected from collagen production promoting or degradation inhibitory action, hyaluronic acid production promoting or degradation inhibitory action, and elastin production promoting or degradation inhibitory action. The method for producing extracellular vesicles having a cell senescence inhibitory action or a biological tissue repair promoting action according to any one of (9) to (15) above, which is due to the action of Is.
- the present invention is also a gene expression regulator, specifically, (17)
- a gene expression regulator which is at least one gene selected from an acid synthase gene, a hyaluronic acid degrading enzyme gene, an elastin gene, and an elastin degrading enzyme gene; Is.
- the present invention is also a method for producing extracellular vesicles as such a gene expression regulator.
- a method for producing extracellular vesicles having a gene expression-regulating effect which comprises obtaining extracellular vesicles by a method; (19) One or more tissues in which the mesenchymal stem cells are derived from iPS cells or selected from the group consisting of umbilical cord, umbilical cord blood, bone marrow, fat, muscle, nerve, skin, dental pulp, sheep membrane and placenta.
- the mesenchymal stem cells are stimulated by at least one inflammatory cytokine selected from tumor necrosis factor ⁇ , interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18, and interferon gamma.
- (21) The gene expression regulation according to any one of (18) to (20) above, wherein the extracellular vesicle is obtained by a method utilizing a substance having an affinity for phosphatidylserine.
- the gene is at least one gene selected from a cell growth inhibitory gene, a collagen gene, a collagen degrading enzyme gene, a hyaluronan synthase gene, a hyaluronan degrading enzyme gene, an elastin gene, and an elastin degrading enzyme gene.
- the present invention is also a composition for external use on the skin for suppressing cell aging or promoting biological tissue repair.
- An external composition for suppressing cell aging or promoting biological tissue repair which contains the cell senescence inhibitor or biological tissue repair promoter according to any one of (1) to (8) above; Is.
- the present invention is also a method for producing an external composition for skin for suppressing cell aging or promoting repair of living tissue.
- (27) Obtain extracellular vesicles from mesenchymal stem cells stimulated with inflammatory cytokines, or / and use substances having an affinity for phosphatidylserine from extracellular vesicles derived from mesenchymal stem cells.
- a method for producing an extracellular composition for suppressing cell aging or promoting biological tissue repair which comprises obtaining extracellular vesicles by a method; (28) One or more tissues in which the mesenchymal stem cells are derived from iPS cells or selected from the group consisting of umbilical cord, umbilical cord blood, bone marrow, fat, muscle, nerve, skin, dental pulp, sheep membrane and placenta.
- the method for producing an external composition for suppressing cell aging or promoting biological tissue repair according to (27) above; (29)
- the mesenchymal stem cells are stimulated by at least one inflammatory cytokine selected from tumor necrosis factor ⁇ , interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18, and interferon ⁇ .
- the inhibition of cell senescence according to any one of (27) to (29) above, wherein the extracellular vesicle is obtained by a method utilizing a substance having an affinity for phosphatidylserine.
- Method for producing an extracellular composition for use or for promoting biological tissue repair (31) The composition for external skin for suppressing cell aging or promoting biological tissue repair according to any one of (27) to (30) above, wherein the substance having an affinity for phosphatidylserine is a Tim protein. Production method; (32) The method for producing an external composition for suppressing cell aging or promoting biological tissue repair according to (31) above, wherein the Tim protein is selected from Tim4 protein, Tim3 protein and Tim1 protein; (33) The extracellular vesicles are derived from mesenchymal stem cells stimulated with inflammatory cytokines and are obtained by a method using a substance having an affinity for phosphatidylserine.
- a cell senescence inhibitor a biological tissue repair promoter, a gene expression regulator, and an external composition for skin containing extracellular senescence having an inhibitory effect on cell senescence or a promoting effect on biological tissue repair from mesenchymal stem cells as an active ingredient.
- the cell senescence inhibitor, biological tissue repair promoter, and skin external composition provided by the present invention regulate gene expression of cell senescence-related gene or biological tissue repair-related gene, and promote cell proliferation, promote collagen production, or It suppresses cellular senescence and promotes repair of biological tissues by suppressing degradation, promoting or suppressing proliferation of hyaluronic acid, promoting production of elastin or inhibiting degradation, and the like.
- the gene expression regulator provided by the present invention is at least selected from a cell growth inhibitory gene, a collagen gene, a collagen degrading enzyme gene, a hyaluronan synthase gene, a hyaluronan degrading enzyme gene, an elastin gene, and an elastin degrading enzyme gene. It has the effect of regulating the expression of one gene.
- FIG. 1 shows the results of NTA analysis of the particle size distribution of MSC-derived extracellular vesicles obtained by the ultracentrifugation method.
- FIG. 2 shows the results of analyzing the particle size distribution of MSC-derived extracellular vesicles obtained by the PS affinity method by NTA.
- FIG. 3 is a diagram showing primers used for quantitative PCR.
- FIG. 4 shows the cell senescence inhibitory activity of extracellular vesicles obtained from bone marrow-derived MSC using human fetal lung-derived fibroblasts (TIG3 cells) using the mRNA expression level of the p21 gene (cell proliferation inhibitory gene) as an index. And it is the result of evaluating the biological tissue repair promoting activity.
- FIG. 4 shows the cell senescence inhibitory activity of extracellular vesicles obtained from bone marrow-derived MSC using human fetal lung-derived fibroblasts (TIG3 cells) using the mRNA expression level of the p21 gene (cell proliferation inhibitory gene
- FIG. 5 shows the cell senescence inhibitory activity and biological tissue repair of extracellular vesicles obtained from bone marrow-derived MSC using human fetal lung-derived fibroblasts using the mRNA expression level of the p53 gene (cell proliferation inhibitory gene) as an index. This is the result of evaluating the promoting activity.
- FIG. 6 shows the cell senescence inhibitory activity of extracellular vesicles obtained from bone marrow-derived MSC and living organisms using human fetal lung-derived fibroblasts using the mRNA expression level of the MMP-1 gene (collagen-degrading enzyme gene) as an index. This is the result of evaluating the tissue repair promoting activity.
- FIG. 1 shows the cell senescence inhibitory activity and biological tissue repair of extracellular vesicles obtained from bone marrow-derived MSC using human fetal lung-derived fibroblasts using the mRNA expression level of the p53 gene (cell proliferation inhibitory gene) as an index. This is the result of evaluating the
- FIG. 7 shows the cell senescence inhibitory activity and biological tissue repair of extracellular vesicles obtained from umbilical cord-derived MSC using human fetal lung-derived fibroblasts using the mRNA expression level of the p21 gene (cell proliferation inhibitory gene) as an index. This is the result of evaluating the promoting activity.
- FIG. 8 shows the cell senescence inhibitory activity and biological tissue repair of extracellular vesicles obtained from umbilical cord-derived MSC using human fetal lung-derived fibroblasts using the mRNA expression level of the p53 gene (cell proliferation inhibitory gene) as an index. This is the result of evaluating the promoting activity.
- FIG. 8 shows the cell senescence inhibitory activity and biological tissue repair of extracellular vesicles obtained from umbilical cord-derived MSC using human fetal lung-derived fibroblasts using the mRNA expression level of the p53 gene (cell proliferation inhibitory gene) as an index. This is the result of evaluating the promoting activity.
- FIG. 9 shows the cell senescence inhibitory activity of extracellular vesicles obtained from umbilical cord-derived MSC using human fetal lung-derived fibroblasts and living organisms using the mRNA expression level of the MMP-1 gene (collagen-degrading enzyme gene) as an index. This is the result of evaluating the tissue repair promoting activity.
- FIG. 10 is a diagram showing primers used for quantitative PCR.
- FIG. 11 is obtained from (A) bone marrow-derived MSC or (B) fat-derived MSC using human skin-derived fibroblasts (TIG3S cells) using the mRNA expression level of the p16 gene (cell proliferation inhibitory gene) as an index.
- FIG. 12 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat-derived using human skin-derived fibroblasts using the mRNA expression level of the p21 gene (cell proliferation inhibitory gene) as an index. This is the result of evaluating the cell senescence inhibitory activity and the biological tissue repair promoting activity of the extracellular vesicles obtained from MSC, respectively.
- FIG. 12 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat-derived using human skin-derived fibroblasts using the mRNA expression level of the p21 gene (cell proliferation inhibitory gene) as an index.
- FIG. 12 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat-derived using human skin-derived fibroblasts using the mRNA expression level of the p21 gene (cell proliferation inhibitory gene) as an index.
- FIG. 13 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) using human skin-derived fibroblasts using the mRNA expression level of the MMP-1 gene (collagen-degrading enzyme gene) as an index. This is a result of evaluating the cell senescence inhibitory activity and the biological tissue repair promoting activity of extracellular vesicles obtained from adipose-derived MSC, respectively.
- FIG. 14 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat-derived using human skin-derived fibroblasts using the mRNA expression level of the COL1A1 gene (type I collagen gene) as an index.
- FIG. 15 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat-derived using human skin-derived fibroblasts using the mRNA expression level of the COL3A1 gene (type III collagen gene) as an index. This is the result of evaluating the cell senescence inhibitory activity and the biological tissue repair promoting activity of the extracellular vesicles obtained from MSC, respectively.
- FIG. 15 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat-derived using human skin-derived fibroblasts using the mRNA expression level of the COL3A1 gene (type III collagen gene) as an index.
- COL3A1 gene type III collagen gene
- FIG. 16 shows (A) bone marrow-derived MSC, (B) umbilical cord-derived MSC, or (C) fat using human skin-derived fibroblasts using the mRNA expression level of the HAS1 gene (hyaluronan synthase gene) as an index.
- HAS1 gene hyaluronan synthase gene
- the basis of the present invention is obtained by a method utilizing extracellular vesicles derived from mesenchymal stem cells stimulated with inflammatory cytokines and / or substances having an affinity for phosphatidylserine. It is a cell senescence inhibitor, a biological tissue repair promoter, and a gene expression regulator containing extracellular vesicles as an active ingredient.
- Extracellular vesicles are small membrane vesicles derived from cells and composed of a lipid bilayer membrane.
- the extracellular vesicles usually have a diameter of 20 nm to 1000 nm, preferably 50 nm to 800 nm, more preferably 50 nm to 500 nm, and particularly preferably 50 nm to 200 nm.
- Examples of the extracellular vesicles include Nature Reviews Immunology 9,581-593 (March 2009), "Obesity Study” Vol. 13 No. 2 2007 Topics As described in Naoto Aoki and others, those classified in various ways according to their origin and the size of small membrane vesicles can be mentioned.
- exosomes examples thereof include exosomes, vesicles, ectosomes, membrane particles, exosome-like vesicles, apoptotic bodies, adiposomes and the like, with exosomes and vesicles being preferred, and exosomes being more preferred.
- the exosome is a cell-derived small membrane vesicle composed of a lipid bilayer membrane, and examples thereof include those having a diameter of 50 nm to 200 nm, preferably 50 nm to 150 nm, and 50 nm to 100 nm. The one is more preferable. Exosomes are thought to be derived from late endosomes.
- the microvesicles are cell-derived small membrane vesicles composed of a lipid bilayer membrane, and examples thereof include those having a diameter of 100 nm to 1000 nm, preferably 100 nm to 800 nm, and 100 nm to 500 nm. Is more preferable.
- the microvesicles are thought to be derived from the cell membrane.
- MSC is a stem cell capable of differentiating into cells belonging to mesoderm-derived tissues (mesoderm system) such as osteoblasts, adipocytes, muscle cells, and chondrocytes.
- the MSC can be separated from fat, bone marrow, umbilical cord matrix, etc., and the MSC used in the present invention (hereinafter, may be abbreviated as “MSC according to the present invention”) is derived from, for example, mesoderm. It can be obtained by a method of separating from a tissue or a method of inducing from stem cells such as iPS cells and ES cells.
- the MSC according to the present invention is derived from one or more tissues selected from the group consisting of umbilical cord, umbilical cord blood, bone marrow, fat, muscle, nerve, skin, dental pulp, amniotic membrane and placenta, and iPS cells. Those are preferably used.
- the MSC according to the present invention may be one that has undergone pretreatment such as recovery, concentration, purification, isolation, dilution with a buffer solution, filtration sterilization, and the like. These pretreatments may be appropriately carried out according to a conventional method, and the MSCs according to the present invention are preferably those stimulated with inflammatory cytokines.
- the inflammatory cytokine may be any cytokine that can cause inflammatory symptoms in vivo, and for example, tumor necrosis factor ⁇ , interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18, interleukin 18.
- tumor necrosis factor ⁇ interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18, interleukin 18.
- Examples include interferon ⁇ , tumor necrosis factor ⁇ (TNF ⁇ ), interleukin 1, and interleukin ⁇ are preferable, tumor necrosis factor ⁇ and interleukin 1 are more preferable, and tumor necrosis factor ⁇ is particularly preferable.
- Stimulation by the inflammatory cytokine may use at least one or more cytokines as described above, and may use two or more cytokines.
- Extracellular vesicles which are active ingredients in cell senescence inhibitors, biological tissue repair promoters, gene expression regulators, and external composition for skin provided by the present invention.
- extracellular vesicles derived from MSC according to the present invention stimulated by inflammatory cytokines (hereinafter, may be abbreviated as “stimulated MSC-derived extracellular vesicles”), or / and.
- Extracellular vesicles obtained using a substance having an affinity for phosphatidylserine hereinafter, may be abbreviated as "PS-positive extracellular vesicles”).
- Stimulated MSC-derived extracellular vesicles are obtained by isolation from the cell culture supernatant of the MSC according to the present invention, which contains EV stimulated by the inflammatory cytokine.
- the method for obtaining the stimulated MSC-derived extracellular vesicles may be any conventional method for isolating EV from a sample, for example, an affinity method (for example, PS affinity method) or a fractional centrifugation method (for example, pellet down).
- an affinity method for example, PS affinity method
- a fractional centrifugation method for example, pellet down.
- sucrose cushioning method for example, sucrose cushioning method, ultracentrifugation method such as density gradient centrifugation
- immunoprecipitation method for example, ion exchange chromatography method, gel permeation chromatography method
- density gradient method for example, sucrose density gradient method.
- Electrophoresis eg, Organella Electrophoresis
- Magnetic Separation eg, Magnetically Activated Cell Sorting (MACS)
- Ultracentrifugation Concentration eg, Nanofilm Ultracentrifuge
- Percor A gradient isolation method, a method using a microfluidic device, a PEG precipitation method, etc. can be mentioned, and an affinity method for obtaining extracellular membrane vesicles having a high degree of purification, or a fraction that can theoretically be recovered without bias.
- the centrifugation method is preferable, the affinity method or the ultracentrifugation method is more preferable, and the affinity method is particularly preferable.
- the affinity methods the PS affinity method is preferable.
- the affinity method and the fractional centrifugation method may be carried out according to, for example, the methods described in JP-A-2016-088689. As these isolation methods, only one kind may be used, or two or more kinds may be combined. Further, isolation by one isolation method may be repeated twice or more.
- the cell culture supernatant of the MSC according to the present invention containing EV stimulated by the inflammatory cytokine is, for example, proliferated and proliferated the MSC according to the present invention stimulated by the inflammatory cytokine by cell culture. It is obtained by further culturing the cells in an EV-producing medium.
- the stimulation of the MSC according to the present invention by the inflammatory cytokine may be performed by culturing the MSC according to the present invention in the coexistence of the inflammatory cytokine.
- the cell culture of MSC and the culture in the EV production medium according to the present invention may be carried out according to a conventional method performed in this field, and the medium and culture conditions used are not particularly limited.
- the PS-positive extracellular vesicle is the PS-positive (containing PS) extracellular vesicle in which phosphatidylserine is considered to be exposed on the membrane surface of the extracellular vesicle.
- PS-affinitive substance As the substance having an affinity for phosphatidylserine (hereinafter, may be abbreviated as "PS-affinitive substance"), it is possible to specifically bind to phosphatidylserine constituting the membrane of extracellular vesicles.
- Any substance may be used, for example, Annexin V; MFG-E8; Tim1 protein (T-cell immunoglobulin / mutin domain-containing molecule 1, T-cell antibody-mucin-domine 1), Tim2 protein (T-cell immunoglobulin).
- Tim3 protein T-cell immunoglobulin-mutin domain-containing molecule 3, T-cell antibody-mucin-domain 3
- Tim4 protein T-cell immunoglobulin
- mutin domain-containing molecule 4 T-cell antibody-mucin-domain 4
- Tim1 protein are more preferred
- Tim4 protein and Tim1 protein are even more preferred
- Tim4 protein is particularly preferred.
- PS-positive extracellular vesicles have an affinity for phosphatidylserine from the cell culture supernatant of MSC according to the present invention containing EV (hereinafter, may be abbreviated as "cell culture supernatant containing EV").
- EV obtained after isolation using a substance having sex or obtaining EV from the cell culture supernatant of MSC according to the present invention containing EV by a conventional method in this field such as ultracentrifugation. It is obtained by isolating from phosphatidylserine using a substance having an affinity for phosphatidylserine.
- the cell culture supernatant of the MSC according to the present invention containing EV can be obtained, for example, by proliferating the MSC according to the present invention by cell culture and further culturing the proliferated cells in an EV production medium.
- the cell culture of MSC and the culture in the EV production medium according to the present invention may be carried out according to a conventional method performed in this field, and the medium and culture conditions used are not particularly limited.
- PS affinity method The outline of the method for obtaining extracellular vesicles (hereinafter, may be abbreviated as "PS affinity method") by a method using a substance having an affinity for phosphatidylserine is described below. Further, as a PS affinity method, for example, a specific example is described in Patent Document 1.
- the cell culture supernatant containing EV is brought into contact with the PS-affinitive substance in the presence of calcium ions, and the extracellular vesicles in the cell culture supernatant are combined with the PS-affinitive substance.
- This is done by forming a body (hereinafter, sometimes abbreviated as "complex according to the present invention"), separating the PS-affinitive substance from the complex, and obtaining PS-positive extracellular vesicles. ..
- the preferred method of the PS affinity method specifically includes the following steps. (1) In the presence of calcium ions, the cell culture supernatant containing EV and the PS-affinitive substance are brought into contact with each other, and a complex of PS-positive extracellular vesicles and the PS-affinitive substance in the cell culture supernatant. Forming (complex according to the present invention) (hereinafter, may be abbreviated as “complex forming step”), (2) Separation of the complex according to the present invention obtained in the complex formation step from the cell culture supernatant containing the EV (hereinafter, may be abbreviated as “complex separation step”). (3) Separation of PS-positive extracellular vesicles from the complex according to the present invention to acquire PS-positive extracellular vesicles (hereinafter, may be abbreviated as "acquisition step”).
- the cell culture supernatant containing EV and the PS-affinity substance in the PS-affinity method are the same as those described above, and the preferred ones and specific examples are also the same.
- the PS-affinity substance used in the complex formation step is preferably one immobilized (bonded) to an insoluble carrier.
- the complex according to the present invention can be separated from the cell culture supernatant containing the EV by a known B / F separation method in the complex separation step.
- the insoluble carrier for immobilizing the PS-affinitive substance examples include an insoluble carrier used in immunological measurement methods. Specifically, for example, polystyrene, polyacrylic acid, polymethacrylic acid, polymethylmethacrylate, polyacrylamide, polyglycidyl methacrylate, polypropylene, polyolefin, polyimide, polyurethane, polyester, polyvinyl chloride, polyethylene, polychlorocarbonate, silicone.
- Organic substances such as resins, silicone rubbers, agaroses, dextrans, ethylene-maleic anhydride copolymers; inorganic substances such as glass, silicon oxide, silica, porous glass, suriglass, alumina, silica gel, metal oxides; iron, cobalt, Magnetic materials such as nickel, magnetite, and chromate; and those prepared using an alloy of these magnetic materials as a material can be mentioned.
- examples of the usage form of these carriers include particles (beads), microplates, tubes, disc-shaped pieces and the like.
- the form of the insoluble carrier is preferably particles (beads), and the size of the particles is not particularly limited, but examples thereof include those having a size of 10 nm to 100 ⁇ m, and those having a size of 100 nm to 10 ⁇ m are preferable.
- Examples of the method for binding the PS-affinitive substance to the insoluble carrier include a method known per se for binding a protein to the carrier.
- a method of binding by affinity binding for example, a method of binding by chemical bonding (for example, the method described in Japanese Patent Application Laid-Open No. 3269554 and WO2012 / 039395), and a method of binding by physical adsorption (for example, JP-A-5-41946).
- the method described in (1) and the like are preferable, and a method of binding by physical adsorption and a method of binding by affinity bonding are preferable, and a method of binding by physical adsorption is more preferable because it is simple.
- the PS-affinity substance and the insoluble carrier are bound under the condition that the PS-affinity substance and the insoluble carrier are bound according to a method known per se. Should be brought into contact with.
- the amount of the PS-affinitive substance to be bound to the insoluble carrier may be, for example, 0.1 ⁇ g to 50 ⁇ g, preferably 0.1 ⁇ g to 30 ⁇ g, based on 1 mg of the insoluble carrier, for example, when the insoluble carrier is particles (beads). , 0.1 ⁇ g to 20 ⁇ g is more preferable.
- Physical adsorption of the PS-affinitive substance and the insoluble carrier may be performed, for example, by bringing the solution containing the PS-affinitive substance into contact with the insoluble carrier.
- the solution for dissolving the PS-affinitive substance may be a solution that dissolves the PS-affinitive substance in a stable state, for example, purified water, for example, pH 6.0 to 9.8.
- a buffer solution having a buffering action of 7.0 to 9.6 for example, a good buffer solution such as MOPS, a carbonate buffer solution, PBS, TBS, TBS-T, HBS, etc.
- the buffer concentration in these buffers may be appropriately selected from the range of usually 5 to 100 mM, preferably 10 to 100 mM.
- the concentration when NaCl is contained is, for example, 100 to 200 mM, preferably 140 to 160 mM.
- the solution containing the PS-affinitive substance as long as the amount does not interfere with the binding between the PS-affinitive substance and the insoluble carrier, for example, saccharides, salts such as NaCl, surfactants such as Tween 20, and preservatives. , Protein, etc. may be contained.
- the method of binding the PS-affinitive substance and the insoluble carrier by physical adsorption include the following methods.
- 1 mg of the bead (particle) carrier is brought into contact with a solution containing the PS-affinitive substance containing 0.1 ⁇ g to 50 ⁇ g, preferably 0.1 ⁇ g to 30 ⁇ g, more preferably 0.1 ⁇ g to 20 ⁇ g, and the temperature is 2 ° C.
- the reaction is carried out at ⁇ 37 ° C., preferably 4 ° C. to 11 ° C. for 0.5 to 48 hours, preferably 0.5 to 24 hours.
- the insoluble carrier on which the PS-affinity substance immobilized as described above may be subjected to a blocking treatment usually performed in this field.
- the complex formation step is carried out in the presence of calcium ions.
- Calcium ions are present when the PS-affinitive substance is brought into contact with the PS-positive extracellular vesicles in the cell culture supernatant containing the EV.
- the calcium ion concentration at the time of contacting the PS-affinitive substance with the PS-positive extracellular vesicles in the cell culture supernatant containing the EV is usually 0.5 mM to 100 mM, preferably 1.0 mM to 10 mM, more preferably. Is 2.0 mM to 5.0 mM.
- the complex according to the present invention is formed between the PS-affinitive substance and the PS-positive extracellular vesicle in the cell culture supernatant containing the EV and the complex separation step is carried out, that is, the complex according to the present invention.
- Calcium ions having the above-mentioned concentration are required in the solution containing the complex according to the present invention until the step of separating the bodies.
- the origin of calcium ions is not particularly limited, and examples thereof include calcium chloride, calcium hydroxide, calcium hydrogencarbonate, calcium iodide, calcium bromide, calcium acetate, and calcium chloride, calcium hydrogencarbonate, and calcium iodide are preferable. Calcium chloride and calcium hydrogen carbonate are more preferable.
- the cell culture supernatant containing the PS-affinitive substance and the EV is used as a method for allowing calcium ions to be present when the PS-affinitive substance and the PS-positive extracellular vesicles in the cell culture supernatant containing the EV are brought into contact with each other.
- the cell culture supernatant containing the PS-affinitive substance and the EV is used in the cell culture supernatant containing EV and / and the solution containing the PS-affinitive substance.
- the calcium ion concentration at the time of contact with the PS-positive extracellular vesicles in the solution is within the above range.
- the calcium ion as described above may be contained.
- a solution containing an amount of calcium ions in which the calcium ion concentration at the time of contacting the PS-affinitive substance with the PS-positive extracellular vesicles in the cell culture supernatant containing the EV is within the above range (hereinafter, , "Calcium ion-containing solution according to the present invention"), the cell culture supernatant containing EV, and the solution containing PS-affinitive substance may be mixed.
- the solution for dissolving calcium ions may be any solution that does not interfere with the binding between PS-positive extracellular vesicles and PS-affinitive substances, for example, water, pH 7.0 to pH 8.
- a buffer solution having a buffering action at .0 is mentioned, and a buffer solution having a buffering action at pH 7.2 to pH 7.6 (for example, TBS, HBS, etc.) is preferable.
- the phosphate buffer is not preferable because it binds to calcium and precipitates.
- the buffer concentration in these buffer solutions is usually appropriately selected from the range of 5 mM to 50 mM, preferably 10 mM to 30 mM. When NaCl is contained, the concentration is usually selected from the range of 100 mM to 200 mM, preferably 140 mM to 160 mM.
- the calcium ion-containing solution according to the present invention for example, saccharides, salts such as NaCl, surfactants, preservatives, BSA, as long as they do not interfere with the binding between PS-positive extracellular vesicles and PS-affinitive substances. And the like may be contained.
- the surfactant include Tween 20 and the like, and the concentration of the surfactant in the calcium ion-containing solution according to the present invention is usually 0.00001% to 0.2%, preferably 0.0005% or more. It is 0.1%.
- the amount of the cell culture supernatant containing the EV to be contacted with 1 ⁇ g of the PS-affinitive substance is usually 0.1 ml to 100 ml, and is 0. .1 ml to 10 ml is preferable, and 0.1 ml to 1.0 ml is more preferable.
- the temperature at which the cell culture supernatant containing EV is brought into contact with the PS-affinitive substance is usually 2 to 37 ° C, preferably 4 to 37 ° C, and more preferably 4 to 30 ° C.
- the contact time between the cell culture supernatant containing EV and the PS-affinitive substance is usually 0.5 to 24 hours, preferably 0.5 to 8 hours, and more preferably 0.5 to 4 hours.
- the amount of the carrier is usually 0.1 mg to 20 mg per 1 mL of the solution for forming the complex according to the present invention. It is preferably 0.3 mg to 10 mg, more preferably 0.5 mg to 6.0 mg.
- the complex formation step may be performed by, for example, the following method. That is, usually 0.1 mg to 20 mg, preferably 0.1 mg to 20 mg, per 1 mL of the solution after mixing the cell culture supernatant containing the EV, the insoluble carrier on which the PS-affinitive substance is immobilized, and the calcium ion-containing solution according to the present invention.
- Calcium ion according to the present invention in an amount such that the calcium ion concentration in the solution after mixing with the ion-containing solution is usually 0.5 mM to 100 mM, preferably 1.0 mM to 10 mM, more preferably 2.0 mM to 5.0 mM.
- Cell culture supernatant containing the containing solution and the EV usually 0.1 ml to 100 ml, preferably 0.1 ml to 10 ml, more preferably 0.1 ml to 1.0 ml per 1 mg of the insoluble carrier on which a PS-affinitive substance is immobilized.
- the solution is usually 4.0 to 37 ° C., preferably 4.0 to 25 ° C., more preferably 4.0 ° C.
- a complex of a PS-affinitive substance bound to a carrier and PS-positive extracellular vesicles in a cell culture supernatant containing the EV after contact for 0.5 to 4.0 hours is formed.
- the complex separation step may be any method as long as the complex according to the present invention and the cell culture supernatant containing the EV can be separated to obtain the complex according to the present invention. It is good, but for example, the following methods can be mentioned.
- a container containing the complex according to the present invention obtained by the complex forming step is installed on a magnet stand, if necessary. A method of assembling the composite according to the present invention on a tube wall using magnetic force and removing the supernatant to separate them.
- the container containing the complex according to the present invention obtained by the complex forming step is centrifuged to carry out the present invention. A method of separating the complexes by assembling them as a precipitate and then removing the supernatant.
- the complex separation step includes the following methods.
- the magnetic carrier is used as the insoluble carrier
- the container subjected to the complex forming step is installed on a magnet stand if necessary, and the complex according to the present invention obtained on the tube wall is assembled by using magnetic force, and the supernatant is prepared. Exclude the sample.
- the obtained complex according to the present invention may be washed with a calcium ion-containing washing solution (hereinafter, may be abbreviated as "washing operation").
- washing operation impurities in the biological sample such as cell-derived components adhering to the surface of the insoluble carrier on which the PS-affinitive substance is immobilized can be removed.
- a cleaning method usually used in this field can be used except that a calcium ion-containing cleaning solution is used.
- the calcium ion-containing washing solution used in the washing operation contains calcium ions usually 0.5 to 100 mM, preferably 1 to 10 mM, more preferably 2 mM to 5 mM, and is immobilized on PS-positive extracellular vesicles and an insoluble carrier. Any solution that does not affect the binding to the PS-affinitive substance obtained may be used, for example, it usually contains 0.5 mM to 100 mM, preferably 1 mM to 10 mM, more preferably 2 mM to 5 mM of calcium ions.
- a buffer solution (for example, TBS, TBS-T, HBS) that does not precipitate calcium having a buffering action at pH 7.0 to pH 8.0, preferably pH 7.2 to pH 7.6.
- the phosphate buffer is not preferable because it binds to calcium and precipitates.
- the buffer concentration in these buffers is usually selected from the range of 5 mM to 50 mM, preferably 10 mM to 30 mM, and the concentration when NaCl is contained is usually 100 mM to 200 mM, preferably 140 mM to 160 mM. It is appropriately selected from the range.
- saccharides, salts such as NaCl, surfactants, preservatives, etc. as long as they do not interfere with the binding of PS-positive extracellular vesicles and PS-affinitive substances immobilized on the insoluble carrier. It may contain a protein or the like.
- the surfactant include tween 20 (Fujifilm Wako Pure Chemical Industries, Ltd.), and the concentration of the surfactant in the washing solution is usually 0.00001% to 0.2%, preferably 0. It is 0005% to 0.1%.
- the calcium ion-containing washing solution according to the present invention is added to the container containing the complex according to the present invention obtained by the complex separation step, and the mixture is stirred. After that, the container is placed on a magnet stand, the composite according to the present invention is assembled on the tube wall using magnetic force, and the solution in the container is discarded. These cleaning operations may be repeated several times as needed.
- the acquisition step may be any method as long as it can acquire PS-positive extracellular vesicles from the complex according to the present invention, and a method of reducing the calcium ion concentration is preferable.
- Examples of the method for reducing the concentration of calcium ions include a method using a calcium ion chelating agent. That is, after the complex separation step, if necessary, after a washing operation, it was brought in from a solution containing calcium ions (calcium ions bound to the complex according to the present invention and the complex according to the present invention) in the reaction system.
- PS-positive extracellular vesicles can be separated from the complex according to the present invention by allowing a calcium ion chelating agent to act on calcium ions to chelate calcium ions and reduce the effective concentration of calcium ions in the reaction system. Just do it.
- the calcium ion chelating agent used in this method may be any compound capable of chelating calcium ions, for example, EDTA (ethylenediaminetetraacetic acid), NTA (nitrilotriacetic acid), DTPA (diethylenetriaminepentaacetic acid), GLDA.
- EDTA ethylenediaminetetraacetic acid
- NTA nitrilotriacetic acid
- DTPA diethylenetriaminepentaacetic acid
- GLDA GLDA
- the calcium ion chelating agent is usually used as a solution.
- the solution for dissolving the calcium ion chelating agent may be any solution that dissolves the calcium ion chelating agent, and examples thereof include purified water and a buffer solution.
- a buffer solution having a buffering action usually at pH 7.0 to pH 8.0, preferably pH 7.2 to pH 7.6 (for example, PBS, TBS, HBS, etc.) is preferable.
- the buffer concentration in these buffer solutions is usually appropriately selected from the range of 5 Mm to 50 Mm, preferably 10 Mm to 30 Mm, and the concentration when NaCl is contained is usually 100 Mm to 200 Mm, preferably 140 Mm to 160 Mm. It is appropriately selected from the range.
- the solution containing a calcium ion chelating agent may contain, for example, sugars, salts such as NaCl, preservatives, proteins and the like.
- the concentration of the calcium ion chelating agent in the calcium ion chelating agent-containing solution is usually 0.5 mM to 500 mM, preferably 0.5 mM to 100 mM, and more preferably 0.5 mM to 50 mM.
- the pH of the calcium ion chelating agent-containing solution is usually pH 6.0 to pH 9.0, preferably pH 7.0 to pH 8.0, and more preferably pH 7.2 to pH 7.6.
- the calcium ion chelating agent-containing solution is brought into contact with the complex according to the present invention (for example, in pellet form) to bring the present invention into contact with the complex according to the present invention. This is performed by reacting the calcium ion bound to the complex according to the above with the calcium ion chelating agent in the calcium ion chelating agent-containing solution.
- the contact between the calcium ion chelating agent-containing solution and the complex according to the present invention is, for example, a method of suspending the complex according to the present invention in a calcium ion chelating agent-containing solution (insolubility of an insoluble carrier on which a PS-affinitive substance is immobilized).
- a method of immersing the complex according to the present invention in a solution containing a calcium ion chelating agent when the insoluble carrier of the insoluble carrier on which a PS-affinitive substance is immobilized is a disk-shaped piece, a tube, etc.) ) Etc.
- the concentration of calcium ions in the solution after contact with the complex according to the present invention is less than the effective concentration, and from the complex according to the present invention. Any amount may be used as long as the amount of extracellular vesicles to be separated.
- the temperature and time for the calcium ion chelating agent to act (contact) the complex according to the present invention are usually 4.0 ° C. to 37 ° C., preferably 10 ° C. to 30 ° C., more preferably 20 ° C. to 30 ° C. , Usually 1 to 10 minutes, preferably 5 to 15 minutes.
- the acquisition process will be described below by taking as an example a method using a carrier (Tim carrier) in which Tim protein is bound to an insoluble carrier. That is, after the complex separation step, if necessary, after a further washing operation, the obtained complex according to the present invention is usually 0.5 mM to 500 mM, preferably 0.5 mM to 100 mM, more preferably 0.5 mM.
- a solution containing ⁇ 50 mM calcium ion chelating agent is usually added at 10 ⁇ L to 500 ⁇ L, preferably 20 ⁇ L to 200 ⁇ L ⁇ L, more preferably 50 ⁇ L to 100 ⁇ L ⁇ L per 1 mg of Tim carrier, and usually 4.0 ° C. to 37 ° C., preferably 10 ° C.
- the reaction is carried out at 30 ° C., more preferably 20 ° C. to 30 ° C. for usually 1 to 30 minutes, preferably 5 to 15 minutes to separate PS-positive extracellular vesicles from the complex according to the present invention.
- the calcium ion chelating agent-containing solution brought into contact with the complex according to the present invention was separated (freed) from the insoluble carrier on which the PS-affinitive substance was immobilized and the complex according to the present invention. It will be contained in extracellular vesicles. Therefore, if the carrier on which the PS-affinitive substance is immobilized is removed from the solution and only the solution is recovered, a solution containing PS-positive extracellular vesicles can be obtained.
- the extracellular vesicle according to the present invention is preferably a stimulated MSC-derived extracellular vesicle, is derived from mesenchymal stem cells stimulated with the inflammatory cytokine, and has an affinity for phosphatidylserine. More preferably, it is obtained by a method using a substance, and at least one selected from tumor necrosis factor ⁇ (TNF ⁇ ), interleukin 1, interleukin 6, interleukin 8, interleukin 12, interleukin 18 and interferon ⁇ .
- TNF ⁇ tumor necrosis factor ⁇
- Those derived from mesenchymal stem cells stimulated with inflammatory cytokines and obtained by the PS affinity method using Tim protein are more preferable, and are selected from tumor necrosis factor ⁇ , interleukin 1 and interferon ⁇ .
- Those derived from mesenchymal stem cells stimulated with at least one inflammatory cytokine and obtained by the PS affinity method using Tim4 protein, Tim3 protein or Tim1 protein are even more preferable, and tumor necrosis factor is more preferable.
- Those derived from mesenchymal stem cells stimulated with factor ⁇ or interleukin 1 and obtained by the PS affinity method using Tim4 protein are particularly preferable, and those obtained by the PS affinity method using tumor necrosis factor ⁇ are particularly preferable.
- it is derived from a line stem cell and is obtained by a PS affinity method using a Tim4 protein.
- the cell aging inhibitor of the present invention contains extracellular vesicles according to the present invention as an active ingredient.
- cell proliferation promoting action, collagen production promoting or degradation suppressing action, hyaluronic acid production promoting or degradation suppressing action, and elastin by regulating gene expression of cell senescence-related genes.
- Cellular senescence can be suppressed based on at least one cell senescence-suppressing action selected from a production-promoting action or a degradation-suppressing action.
- the cell aging-related gene may be any gene related to cell aging, for example, a cell growth inhibitory gene such as p53 gene, p21 gene, p16 gene; type I collagen gene (COL1A1 gene, COL1A2 gene), and the like.
- a cell growth inhibitory gene such as p53 gene, p21 gene, p16 gene; type I collagen gene (COL1A1 gene, COL1A2 gene), and the like.
- Collagen genes such as type III collagen gene (COL3A1 gene), type V collagen gene (COL5A1 gene, COL5A2 gene), XVII type collagen gene (COL17A1 gene); MMP-1 gene, MMP-2 gene, MMP-3 gene, MMP Collagen-degrading enzyme genes such as -8 gene, MMP-9 gene, MMP-13 gene; Hyaluronic acid synthase genes such as hyaluronic acid synthase 1 gene (HAS1 gene) and hyaluronic acid synthase 2 gene (HAS2 gene); HYAL1 Examples include genes, hyaluronic acid degrading enzyme genes such as HYAL2 gene and HYAL3 gene; elastin genes such as ELN gene; elastin degrading enzyme genes such as MMP-2 gene and MMP-9 gene, and cell growth inhibitory gene, collagen gene and collagen.
- the degrading enzyme gene and hyaluronic acid synthase are preferable, and the p53 gene, p21 gene, p16 gene, MMP-1 gene, COL1A1 gene, COL3A1 gene, and HAS1 gene are more preferable.
- the cell proliferation inhibitory gene may be any gene involved in cell proliferation inhibition, and examples thereof include a gene encoding a cell proliferation inhibitory factor. By regulating the expression of the gene encoding the cell proliferation inhibitor, it is considered that the cyclin kinase involved in cell division is inhibited and cell proliferation is suppressed.
- the regulation of gene expression of a cell aging-related gene in the present invention means promotion of expression and / or suppression of expression of the cell aging-related gene.
- Promotion of expression, promotion of expression of elastin gene, suppression of expression of cell growth inhibitory gene, suppression of expression of collagen degrading enzyme gene, suppression of expression of hyaluronic acid degrading enzyme gene, suppression of expression of elastin degrading enzyme gene, and promotion of expression of collagen gene Promotion of expression of hyaluronic acid synthase gene, suppression of expression of cell growth inhibitory gene, suppression of expression of collagen degrading enzyme gene are preferable, promotion of expression of COL1A1 gene, promotion of expression of COL3A1 gene, promotion of expression of HAS1 gene, expression of p53 gene Suppression, suppression of p21 gene expression, suppression of p16 gene expression, and suppression of MMP-1 gene expression are more preferable.
- the cells targeted for cell senescence suppressed by the cell senescence inhibitor of the present invention are not particularly limited, and examples thereof include fibroblasts, and dermal fibroblasts are more preferable.
- the content of the extracellular vesicles according to the present invention in the cell senescent agent of the present invention is not particularly limited as long as the cell senescence inhibitory activity (cell senescence inhibitory effect) by the extracellular vesicles according to the present invention is exhibited.
- the cell senescence inhibitory activity in the present invention can be evaluated using the expression level of the cell senescence-related gene as an index.
- the cell aging inhibitor of the present invention contains extracellular vesicles according to the present invention as an active ingredient, and is provided as, for example, a pharmaceutical composition.
- the solution containing the extracellular vesicles according to the present invention is used as it is, or if necessary, a solution or a suspending agent together with a pharmaceutically acceptable carrier or additive.
- It is formulated as a lipoagent or the like, or further, it is formulated as a powder by freeze-drying as a solid agent such as a tablet together with a pharmaceutically acceptable additive.
- Pharmaceutically acceptable carriers and additives used in the formulation include, for example, tonicity agents, thickeners, sugars, sugar alcohols, preservatives (preservatives), bactericides or antibacterial agents, pH. Regulators, stabilizers, chelating agents, oily bases, gel bases, surfactants, suspending agents, binders, excipients, lubricants, disintegrants, foaming agents, fluidizing agents, dispersants , Emulsifiers, buffers, solubilizers, antioxidants, sweeteners, acidity agents, colorants, flavoring agents, fragrances, cooling agents and the like, but are not limited thereto.
- Examples of typical carriers, additives, etc. include the following.
- Examples of the carrier include an aqueous carrier such as water and hydrous ethanol.
- Examples of the tonicity agent include inorganic salts such as sodium chloride, potassium chloride, calcium chloride, and magnesium chloride.
- Examples of the polyhydric alcohol include glycerin, propylene glycol, polyethylene glycol and the like.
- Examples of the thickener include carboxyvinyl polymer, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, alginic acid, polyvinyl alcohol (completely or partially saponified product), polyvinylpyrrolidone, macrogol and the like.
- sugars include cyclodextrin, glucose, fructose, lactose and the like.
- sugar alcohols include sugar alcohols such as xylitol, sorbitol, and mannitol.
- preservatives, bactericides or antibacterial agents include dibutylhydroxytoluene, benzalkonium chloride, benzethonium chloride, chlorhexidine gluconate, sodium dehydroacetate, methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, paraoxybenzoate. Butyl acid acid sugar can be mentioned.
- Examples of the pH adjuster include hydrochloric acid, boric acid, aminoethylsulfonic acid, citric acid, acetic acid, sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, sodium hydrogencarbonate, sodium carbonate, borosand, and bird.
- Examples thereof include ethanolamine, monoethanolamine, diisopropanolamine, sulfuric acid, magnesium sulfate, phosphoric acid, polyphosphoric acid, propionic acid, oxalic acid, gluconic acid, fumaric acid, lactic acid, tartrate acid, malic acid, succinic acid and the like.
- the stabilizer examples include dibutylhydroxytoluene, tromethamole, sodium formaldehyde sulfoxylate (longalit), tocopherol, sodium pyrosulfite, monoethanolamine, aluminum monostearate, glycerin monostearate, sodium hydrogen sulfite, sodium sulfite and the like.
- the base examples include vegetable oils such as olive oil, corn oil, soybean oil, sesame oil, and cottonseed oil; oily bases such as medium-chain fatty acid triglyceride; aqueous bases such as macrogol 400; carboxyvinyl polymers, gums, etc. Gel base can be mentioned.
- surfactant examples include polysorbate 80, hardened castor oil, glycerin fatty acid ester, sorbitan sesquioleate, and the like
- suspending agent examples include sala shimitsuro, various surfactants, arabic rubber, and arabic rubber. Powder, xanthan gum, soy lecithin and the like can be mentioned.
- examples of the binder include hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose, polyvinylpyrrolidone, polyvinyl alcohol and the like, and examples of the excipient include sucrose, lactose, starch and corn starch. , Crystalline cellulose, light anhydrous silicic acid and the like.
- Examples of the lubricant include sucrose fatty acid ester, magnesium stearate, talc and the like, and examples of the disintegrant include low-substituted hydroxypropyl Examples thereof include cellulose, crospovidone, and croscarmellose sodium, and examples of the fluidizing agent include sodium aluminometasilicate and light anhydrous silicic acid.
- the cell senescence inhibitor of the present invention is preferably formulated as a liquid agent, a suspending agent or a lipoagent, and basically requires a solution containing the extracellular vesicles according to the present invention. It is obtained by mixing with the above-mentioned carriers and additives according to the above, for example, in physiological saline, 5% dextrose solution, lipo emulsion or the like.
- the lyophilized powder can also be used to dissolve or suspend the product before use.
- the cell aging inhibitor of the present invention is a liquid agent, a suspending agent or a lipo agent
- its pH is particularly limited as long as it is within a pharmaceutically, pharmacologically or physiologically acceptable range.
- a range of pH 2.5 to 9.0, preferably 3.0 to 8.5, and more preferably 3.5 to 8.0 can be mentioned, and the pH should be adjusted as appropriate with a pH adjuster. Can be done.
- the administration route of the cellular senescence inhibitor of the present invention includes oral administration, subcutaneous administration, intramuscular administration, intravenous administration, intraarterial administration, intrathecal administration, and intraperitoneal administration, depending on the dosage form.
- this dose may be administered multiple times a day with this dose as a single dose, and this dose can be administered in a plurality of times.
- the cell aging inhibitor of the present invention may be formulated as a skin external preparation such as a transdermal drug or a transdermal quasi drug.
- the content of the extracellular vesicles according to the present invention in the skin external preparation is not particularly limited as long as the cell senescence inhibitory activity by extracellular vesicles according to the present invention can be exhibited, for example, 1x10 6 particles / mL ⁇ 1x10 15 1x10 7 vesicles / mL to 1x10 14 vesicles / mL are preferred, 1x10 8 vesicles / mL to 1x10 13 vesicles / mL are particularly preferred.
- the dosage form of the external preparation for skin is arbitrary, and can be provided as, for example, a solubilizing system such as lotion, a dispersion system such as calamine lotion, or an emulsifying system such as cream or milky lotion. Further, it can be provided in various dosage forms such as an aerosol form filled with a propellant, a pump spray agent, an ointment agent, a poultice agent, a tape agent, and an injection agent.
- the external preparation for skin includes any component (base material) usually blended in transdermal pharmaceuticals, transdermal pharmaceutical external products, etc., depending on its use and need.
- ⁇ May be blended, for example, water, oily ingredients, moisturizers, powders, pigments, emulsifiers, solubilizers, gelling agents, cleaning agents, UV absorbers, antioxidants, antiallergic agents, thickening agents.
- Agents, pH adjusters, chelating agents, chemicals (medicinal ingredients), fragrances, resins, antibacterial and antifungal agents, preservatives (preservatives), antioxidants, slimming agents, alcohols, surfactants, UV absorbers, Moisturizers, emulsifiers, vitamins, colorants, natural extracts and the like can be mentioned.
- other compounds having an inhibitory effect on cell aging and the like can be appropriately blended as long as the effects of the present invention are not impaired.
- the content of these arbitrary components is not particularly limited, and can be appropriately selected according to a desired dosage form, application and the like.
- the biological tissue repair promoter of the present invention contains extracellular vesicles according to the present invention as an active ingredient.
- the expression of a biological tissue repair-related gene is regulated, cells proliferate, and the repair of fibers constituting the biological tissue such as collagen fibers and elastic fibers is promoted. Repair of living tissue with reduced or lost constitutive function is promoted.
- the cell proliferation promoting action by regulating the gene expression of the cell proliferation suppressing gene, the collagen fiber (collagen fiber) repair promoting action by the collagen production promoting or degradation suppressing action, the elastin production promoting action or the degradation suppressing action.
- the biological tissue repair-related gene may be any biological tissue repair-related gene, for example, a cell growth inhibitory gene such as p53 gene, p21 gene, p16 gene; type I collagen gene (COL1A1 gene, COL1A2 gene), and the like.
- a cell growth inhibitory gene such as p53 gene, p21 gene, p16 gene; type I collagen gene (COL1A1 gene, COL1A2 gene), and the like.
- Collagen genes such as type III collagen gene (COL3A1 gene), type V collagen gene (COL5A1 gene, COL5A2 gene), XVII type collagen gene (COL17A1 gene); MMP-1 gene, MMP-2 gene, MMP-3 gene, MMP Collagen-degrading enzyme genes such as -8 gene, MMP-9 gene, MMP-13 gene; Hyaluronic acid synthase genes such as hyaluronic acid synthase 1 gene (HAS1 gene) and hyaluronic acid synthase 2 gene (HAS2 gene); HYAL1 Genes, hyaluronic acid-degrading enzyme genes such as HYAL2 gene and HYAL3 gene; elastin genes such as ELN gene; elastin-degrading enzyme genes such as MMP-2 gene and MMP-9 gene.
- MMP-1 gene such as type III collagen gene (COL3A1 gene), type V collagen gene (COL5A1 gene, COL5A2 gene), XVII type collagen gene (COL
- the degrading enzyme gene and hyaluronic acid synthase are preferable, and the p53 gene, p21 gene, p16 gene, MMP-1 gene, COL1A1 gene, COL3A1 gene, and HAS1 gene are more preferable.
- the cell proliferation inhibitory gene may be any gene involved in cell proliferation inhibition, and examples thereof include a gene encoding a cell proliferation inhibitory factor. By regulating the expression of the gene encoding the cell proliferation inhibitor, it is considered that the cyclin kinase involved in cell division is inhibited and cell proliferation is suppressed.
- the regulation of the expression of the biological tissue repair-related gene in the present invention means the promotion and / or suppression of the expression of the biological tissue repair-related gene.
- Promotion promotion of hyaluronic acid synthase gene expression, suppression of cell growth inhibitory gene expression, suppression of collagen degrading enzyme gene expression are preferable, COL1A1 gene expression promotion, COL3A1 gene expression promotion, HAS1 gene expression promotion, p53 gene Suppression of expression, suppression of p21 gene expression, suppression of p16 gene expression, and suppression of MMP-1 gene expression are more preferable.
- tissues for which the biological tissue repair promoter of the present invention promotes repair include tissues having collagen fibers and elastic fibers and tissues having hyaluronic acid, and specifically, for example, dermis, ligaments, connective tissue, and arteries. , Lung, etc., preferably dermis, ligament.
- the content of extracellular vesicles according to the present invention in the biological tissue repair promoter of the present invention is particularly high as long as the extracellular vesicles according to the present invention exert the biological tissue repair promoting activity (living tissue repair promoting effect). Not limited.
- the biological tissue repair promoting activity in the present invention can be evaluated using the expression level of the biological tissue repair-related gene as an index.
- the biological tissue repair promoter of the present invention contains extracellular vesicles according to the present invention as an active ingredient, and is provided as, for example, a pharmaceutical composition.
- the dosage form of the biological tissue repair promoter of the present invention is a solution or suspension of the solution containing the extracellular vesicles according to the present invention as it is or, if necessary, with a pharmaceutically acceptable carrier and additive. It is formulated as an agent, a lipoagent, or the like, or further, it is formulated as a powder by freeze-drying as a solid agent such as a tablet together with a pharmaceutically acceptable additive.
- the pharmaceutically acceptable carrier and additive used in the formulation include the same as the above-mentioned cell senescence inhibitor of the present invention, and the preferred ones are the same.
- the biological tissue repair promoter of the present invention is preferably formulated as a liquid agent, a suspending agent or a lipoagent, and basically, a solution containing extracellular vesicles according to the present invention is used. If necessary, it is obtained by mixing with the above-mentioned carrier and additive with, for example, physiological saline, 5% glucose solution, lipo emulsion or the like.
- the lyophilized powder can also be used to dissolve or suspend the product before use.
- the biological tissue repair promoter of the present invention is a liquid agent, suspension agent or lipoagent
- its pH is particularly limited as long as it is within a pharmaceutically, pharmacologically or physiologically acceptable range.
- a range of pH 2.5 to 9.0, preferably 3.0 to 8.5, and more preferably 3.5 to 8.0 can be mentioned, and the pH is adjusted appropriately with a pH adjuster. be able to.
- the administration route of the biological tissue repair promoter of the present invention includes oral administration, subcutaneous administration, intramuscular administration, intravenous administration, intraarterial administration, intrathecal administration, and intraperitoneal administration, depending on the dosage form.
- this dose may be administered multiple times a day with this dose as a single dose, and this dose can be administered in a plurality of times.
- the biological tissue repair promoter of the present invention may be formulated as a skin external preparation such as a transdermal drug or a transdermal quasi drug.
- the content of the extracellular vesicles according to the present invention in the skin external preparation is not particularly limited as long as the biological tissue repair promoting activity by extracellular vesicles according to the present invention can be exhibited, for example, 1x10 6 particles / mL ⁇ 1x10 15 vesicles / mL is preferred, 1x10 7 vesicles / mL to 1x10 14 vesicles / mL is more preferred, and 1x10 8 vesicles / mL to 1x10 13 vesicles / mL are particularly preferred.
- the dosage form of the external preparation for skin is arbitrary, and is the same as that for providing the above-mentioned cell aging inhibitor of the present invention as an external preparation for skin.
- the external preparation for skin includes any component (base material) usually blended in transdermal drugs, transdermal quasi-drugs, etc., depending on its use and need. ) May be blended, and is the same as the above-mentioned cell aging inhibitor of the present invention provided as an external preparation for skin.
- other compounds having a biological tissue repair promoting action and the like can be appropriately blended as long as the effects of the present invention are not impaired.
- the content of these arbitrary components is not particularly limited, and can be appropriately selected according to a desired dosage form, application and the like.
- composition for external skin of the present invention contains the extracellular vesicle according to the present invention as an active ingredient.
- the external composition for skin of the present invention can be applied to, for example, cosmetics, transdermal pharmaceuticals, transdermal quasi-drugs, and the like.
- the content of the extracellular vesicles according to the present invention in the composition for external use of the present invention is the cell senescence inhibitory activity (cell senescence inhibitory effect) or the biological tissue repair promoting activity (living tissue) by the extracellular vesicles according to the present invention. It is not particularly limited as long as the restoration promoting effect) is exhibited.
- the content of extracellular vesicles according to the present invention in the external composition for skin of the present invention is preferably, for example, 1x10 6 particles / mL to 1x10 15 particles / mL, preferably 1x10 7 particles / mL to 1x10 14 particles / mL. More preferably, 1x10 8 particles / mL to 1x10 13 particles / mL are particularly preferable.
- the dosage form of the external composition for skin of the present invention is arbitrary, and can be provided as, for example, a solubilizing system such as lotion, a dispersion system such as calamine lotion, or an emulsifying system such as cream or emulsion. Further, it can be provided in various dosage forms such as an aerosol form filled with a propellant, a pump spray agent, an ointment agent, a poultice agent, a tape agent, and an injection agent.
- various cosmetics such as milky lotion, cream, lotion, lotion, pack, beauty essence, cleaning agent, gel, make-up cosmetic; liquid, ointment, powder, granule, aerosol, pump spray, application.
- various forms of cosmetics such as agents, poultices, and tapes, transdermal pharmaceuticals, and transdermal pharmaceutical extracorporeal products.
- the external composition for skin of the present invention includes, in addition to the extracellular vesicles according to the present invention, cosmetics such as skin cosmetics, transdermal pharmaceuticals, transdermal pharmaceutical external products, and transdermal pharmaceutical products, depending on the use and necessity.
- cosmetics such as skin cosmetics, transdermal pharmaceuticals, transdermal pharmaceutical external products, and transdermal pharmaceutical products, depending on the use and necessity.
- Any component (base material) normally blended in a cleaning agent or the like may be blended, for example, water, oily component, moisturizer, powder, pigment, emulsifier, solubilizer, gelling agent, cleaning agent, etc.
- UV absorbers anti-inflammatory agents, anti-allergic agents, thickeners, pH adjusters, chelating agents, drugs (medicinal ingredients), fragrances, resins, antibacterial and antifungal agents, preservatives (preservatives), antioxidants, Examples include slimming agents, alcohols, surfactants, ultraviolet absorbers, whitening agents, moisturizers, emulsifiers, vitamins, coloring agents, natural extracts and the like. Further, other compounds having a cell senescence inhibitory action, a compound having a biological tissue repair promoting action, and the like can be appropriately blended as long as the effects of the present invention are not impaired. Further, the content of these arbitrary components is not particularly limited, and can be appropriately selected according to a desired dosage form, application and the like.
- the cells targeted for cell senescence suppressed by the external composition for skin of the present invention the cells targeted for cell senescence suppressed by the cell aging inhibitor of the present invention or the biological tissue repair promoter of the present invention promote repair. It is similar to the tissue to be used, and so is the preferred one.
- composition for external use of the skin of the present invention may be produced according to the method for producing the extracellular vesicle according to the present invention, the cell senescence inhibitor of the present invention or the biological tissue repair promoter, and the same applies to specific examples and preferred methods. Is.
- the external composition for skin of the present invention exhibits cell aging inhibitory activity or biological tissue repair promoting activity.
- the external composition for skin of the present invention When applied to, for example, facial skin or scalp, it has a cell proliferation promoting action and collagen by regulating the expression of at least one of the cell aging-related genes or the biological tissue repair-related genes. Improvement of wrinkles and sagging due to aging, treatment or prevention of hair loss or thinning hair, or function based on It can be expected to regenerate the functions of damaged or dysfunctional cells, living tissues, and organs.
- the gene expression regulator of the present invention contains extracellular vesicles according to the present invention as an active ingredient, and is a cell growth inhibitory gene such as p53 gene, p21 gene, p16 gene; type I collagen gene (COL1A1 gene gene, Collagen genes such as COL1A2 gene), III type collagen gene (COL3A1 gene), V type collagen gene (COL5A1 gene, COL5A2 gene), XVII type collagen gene (COL17A1 gene); Hyaluronic acid synthase genes such as acid synthase 2 gene (HAS2 gene); Elastin gene such as ELN gene; MMP-1 gene, MMP-2 gene, MMP-3 gene, MMP-8 gene, MMP-9 gene, MMP Collagen degrading enzyme gene such as -13 gene; Hyaluronic acid degrading enzyme gene such as HYAL1 gene, HYAL2 gene, HYAL3 gene; At least one gene selected from elastin degrading enzyme genes such as MMP
- a cell growth inhibitory gene a collagen gene, a collagen degrading enzyme gene, and a hyaluronic acid synthase gene are preferable, and a p53 gene, a p21 gene, a p16 gene, an MMP-1 gene, a COL1A1 gene, a COL3A1 gene, and a HAS1 gene are preferable. Genes are more preferred.
- the gene expression regulation by the gene expression regulator of the present invention means promotion and / or suppression of expression of the expression-regulated gene, promotion of collagen gene expression, promotion of hyaluronic acid synthase gene expression, and elastin gene.
- the cells for which the gene expression regulator of the present invention regulates gene expression are not particularly limited, and for example, fibroblasts, hepatocytes, epithelial cells, vascular endothelial cells, mesenchymal stromal cells, and mesenchymal stem cells.
- fibroblasts hepatocytes, epithelial cells, vascular endothelial cells, mesenchymal stromal cells, and mesenchymal stem cells.
- epithelial cells, vascular endothelial cells, mesenchymal stromal cells, and mesenchymal stem cells are preferable, and dermal fibroblasts, vascular endothelial cells, stromal stromal cells, and mesenchymal cells are preferable.
- Stem cells are more preferred.
- the gene expression regulatory activity of the present invention (gene expression regulatory effect of the present invention) by the extracellular vesicles according to the present invention is exhibited.
- the form of the gene expression regulator of the present invention and the presence or absence of a component other than the extracellular vesicles according to the present invention.
- the gene expression regulator of the present invention contains the extracellular vesicles of the present invention as an active ingredient (main agent), and the dosage form thereof is the same as the solution containing the extracellular vesicles of the present invention.
- it is formulated as a liquid agent, a suspending agent, a lipo agent, etc. together with a pharmaceutically acceptable carrier and additive, or further, it is pharmaceutically acceptable as a powder by freeze-drying. It is formulated as a solid agent such as tablets together with additives.
- Examples of the pharmaceutically acceptable carrier and additive used in the formulation include the same as the above-mentioned cell senescence inhibitor of the present invention, and the preferred ones are the same.
- the gene expression regulator of the present invention is preferably formulated as a liquid agent, a suspension agent or a lipoagent, and basically requires a solution containing the extracellular vesicles according to the present invention. It is obtained by mixing with the above-mentioned carriers and additives according to the above, for example, in physiological saline, 5% glucose solution, lipo emulsion or the like.
- the lyophilized powder can also be used to dissolve or suspend the product before use.
- the gene expression regulator of the present invention is a liquid agent, a suspending agent or a lipoagent
- its pH is particularly limited as long as it is within a pharmaceutically, pharmacologically or physiologically acceptable range.
- a range of pH 2.5 to 9.0, preferably 3.0 to 8.5, and more preferably 3.5 to 8.0 can be mentioned, and the pH should be adjusted as appropriate with a pH adjuster. Can be done.
- the administration route of the gene expression regulator of the present invention includes oral administration, subcutaneous administration, intramuscular administration, intravenous administration, intraarterial administration, intrathecal administration, and intraperitoneal administration, depending on the dosage form.
- this dose may be administered multiple times a day with this dose as a single dose, and this dose can be administered in a plurality of times.
- the gene expression regulator of the present invention may be formulated as a skin external preparation such as a transdermal drug or a transdermal quasi drug.
- the content of the extracellular vesicles according to the present invention in the skin external preparation is not particularly limited as long as the gene expression regulating activity of the present invention by extracellular vesicles according to the present invention can be exhibited, for example, 1x10 6 particles / mL From 1x10 15 vesicles / mL is preferred, 1x10 7 vesicles / mL to 1x10 14 vesicles / mL is more preferred, and 1x10 8 vesicles / mL to 1x10 13 vesicles / mL are particularly preferred.
- the dosage form of the external preparation for skin is arbitrary, and can be provided as, for example, a solubilizing system such as lotion, a dispersion system such as calamine lotion, or an emulsifying system such as cream or milky lotion. Further, it can be provided in various dosage forms such as an aerosol form filled with a propellant, a pump spray agent, an ointment agent, a poultice agent, a tape agent, and an injection agent.
- the external preparation for skin includes any component (base material) usually blended in transdermal pharmaceuticals, transdermal pharmaceutical external products, etc., depending on its use and need.
- ⁇ May be blended, for example, water, oily ingredients, moisturizers, powders, pigments, emulsifiers, solubilizers, gelling agents, cleaning agents, UV absorbers, antioxidants, antiallergic agents, thickening agents.
- Agents, pH adjusters, chelating agents, chemicals (medicinal ingredients), fragrances, resins, antibacterial and antifungal agents, preservatives (preservatives), antioxidants, slimming agents, alcohols, surfactants, UV absorbers, Moisturizers, emulsifiers, vitamins, colorants, natural extracts and the like can be mentioned.
- other compounds having a gene expression regulating action of the present invention and the like can be appropriately blended as long as the effects of the present invention are not impaired.
- the content of these arbitrary components is not particularly limited, and can be appropriately selected according to a desired dosage form, application and the like.
- the gene expression regulator of the present invention may be produced according to the method for producing the extracellular vesicle according to the present invention, the cell senescence inhibitor of the present invention, or the biological tissue repair promoter, and the same applies to specific examples and preferred methods. Is.
- Example 1 Acquisition of extracellular vesicles from bone marrow-derived mesenchymal stem cells by ultracentrifugation
- Cell culture Poietics TM human mesenchymal stem cells (LONZA), which are bone marrow-derived mesenchymal stem cells, are obtained from 15% FBS (Selborne Biological).
- MEM ⁇ (containing L-glutamine, phenol red, Fujifilm Wako Junyaku Co., Ltd.) containing Sevice Pty.) was used as a growth medium for culturing.
- bone marrow-derived mesenchymal stem cells were seeded in a dish 100mm cell culture cells number 3 ⁇ 10 5 (Corning International, Inc.), in 5% CO 2, 37 °C conditions for cell culture incubator set at the cultured 72 hours cultures were grown to a cell number 3 ⁇ 10 6.
- Stimulation with inflammatory cytokines TNF ⁇ was added to the bone marrow-derived mesenchymal stem cells proliferated by (1) at a final concentration of 20 ng / mL for stimulation, and the cells were further cultured for 24 hours.
- bone marrow-derived mesenchymal stem cells cultured in the 10% is extracellular small ⁇ production medium GIBCO: Fetal Bovine Serum, exosome- depleted, One Shot TM format (Thermo Fisher The cells were replaced with 20 mL of D-MEM (Fujifilm Wako Pure Chemical Industries, Ltd.) containing Scientific), and cultured for 120 hours in a cell culture incubator set under the conditions of 5% CO 2 and 37 ° C. Then, the obtained culture supernatant was collected in a 50 mL centrifuge tube and centrifuged at 2000 ⁇ g for 20 minutes to collect the supernatant.
- D-MEM Flujifilm Wako Pure Chemical Industries, Ltd.
- Example 2 Acquisition of extracellular vesicles from umbilical cord-derived mesenchymal stem cells by ultracentrifugation Instead of “Poietics TM human mesenchymal stem cells (LONZA)", "Human Mesenchymal Stem Cells from Umbilical” Extracellular vesicles were obtained by ultracentrifugation in the same manner as in Example 1 except that "Cord Matrix (PromoCell)" was used.
- the obtained solution may be referred to as "extracellular vesicle solution (umbilical cord-derived MSC, ultracentrifugation, TNF ⁇ stimulation)”.
- Comparative example 1 Acquisition of extracellular vesicles from bone marrow-derived mesenchymal stem cells by ultracentrifugation The ultracentrifugation method was performed by the same method as in Example 1 except that "Example 1 (2) Stimulation with inflammatory cytokines" was not performed. Obtained extracellular vesicles.
- the obtained solution may be referred to as "extracellular vesicle solution (bone marrow-derived MSC, ultracentrifugation method)".
- Example 3 Acquisition of extracellular vesicles from bone marrow-derived mesenchymal stem cells by the PS affinity method Instead of “Example 1 (4) Acquisition of extracellular vesicles by the hypercentrifugal method", follow the procedure below to obtain extracellular vesicles by the PS affinity method.
- Extracellular vesicles were obtained by the same method as in Example 1 except that the vesicles were obtained. From 1 mL of the culture supernatant collected in Example 1 (3), using MagCapture TM Exosome Isolation Kit PS (Fujifilm Wako Pure Chemical Industries, Ltd.), follow the procedure described in the instruction manual attached to the kit to obtain extracellular vesicles.
- MagCapture TM Exosome Isolation Kit PS Flujifilm Wako Pure Chemical Industries, Ltd.
- the vesicles were isolated, and extracellular vesicles were obtained in PBS (Phosphate-buffered saline) containing 1 mM EDTA added with EV-Save TM extracellular vesicle blocking reagent (Fujifilm Wako Pure Chemical Industries, Ltd.). Then, using Vivaspin 500 (Sartorius, molecular weight cut-off: 100,000 (100K), membrane material: PES), buffer exchange was performed with PBS supplemented with EV-Save TM extracellular vesicle blocking reagent.
- the obtained solution may be described as "extracellular vesicle solution (bone marrow-derived MSC, PS method, TNF ⁇ stimulation)".
- Example 4 Acquisition of extracellular vesicles from umbilical cord-derived mesenchymal stem cells by the PS affinity method Instead of “Poietics TM human mesenchymal stem cells (LONZA)", “Human Mesenchymal Stem Cells from Umbilical, which is umbilical cord-derived mesenchymal stem cells” Extracellular vesicles were obtained by the PS method by the same method as in Example 3 except that "Code Matrix (PromoCell)" was used. Hereinafter, the obtained solution may be referred to as “extracellular vesicle solution (umbilical cord-derived MSC, PS method, TNF ⁇ stimulation)".
- extracellular vesicle solution umbilical cord-derived MSC, PS method, TNF ⁇ stimulation
- Example 5 Acquisition of extracellular vesicles from umbilical cord-derived mesenchymal stem cells by the PS affinity method Instead of “Poietics TM human mesenchymal stem cells (LONZA)", "Umbilical cord-derived mesenchymal stem cells Human Mesenchymal Stem Cells from Umbilical” Extracellular vesicles were obtained by the PS method in the same manner as in Example 1 except that "Example 1 (2) Stimulation with inflammatory cytokines" was not performed using "Cord Matrix (PromoCell)".
- the obtained solution may be referred to as "extracellular vesicle solution (umbilical cord-derived MSC, PS method)".
- Experimental Example 1-7 Measurement of the number of extracellular vesicle particles by nanotracking analysis
- the number of particles per unit volume of the "extracellular vesicle solution" obtained in Example 1-5 and Comparative Example 1-2 was determined by NanoSign (Malvern Panasonic). ) was used for measurement according to the procedure described in the NanoSight manual by the nanoparticle tracking analysis method (Nano Tracking Analysis method), and the average particle size and the average number of particles per unit volume [particles / mL] were calculated.
- the "extracellular vesicle solution” used for the measurement, the average particle size obtained, and the average number of particles per unit volume are shown in Table 1 below.
- the graph of the obtained particle size distribution is shown in FIG. 1 together with the result of Experimental Example 2.
- the vertical axis represents the number of particles and the horizontal axis represents the particle size.
- Example 6-11 Evaluation of Cellular Senescence Suppressing Activity and Living Tissue Repair Promoting Activity of Extracellular Cyrils Obtained by PS Affinity Method "Extracellular vesicle solution (bone marrow-derived MSC, ultracentrifugation, TNF ⁇ stimulation)" obtained in Example 1 and Using the “extracellular vesicle solution (bone marrow-derived MSC, PS method, TNF ⁇ stimulation)" obtained in Example 3, cell senescence-related genes and biological tissue repair-related genes p21 gene, p53 gene, MMP-1 The cell senescence inhibitory activity and the biological tissue repair promoting activity of extracellular vesicles were evaluated by measuring the mRNA expression level of each gene by quantitative PCR. Specifically, it was carried out by the following method.
- TIG3 cells (distributed from JCRB, after 70 or more divisions), which are human fetal bovine lung-derived fibroblasts, are suspended in DMEM (Fujifilm Wako Pure Chemical Industries, Ltd.) containing 10% FBS (Biosera), and 96 well.
- the cells were seeded in plate (Corning) at a cell count of 2 ⁇ 10 3 per well and a medium volume of 100 ⁇ L. 16 hours after cell seeding, the "extracellular vesicle solution" shown in Table 2 below was added to each well in an amount having a final concentration of 3 ⁇ 10 9 parts / mL, and the cells were cultured for 96 hours.
- each RNA was extracted according to the procedure described in the instructions attached to the kit. From the extracted RNA of 50 ng, cDNA was synthesized using Revertra Ace TM qPCR RT Master Mix with gDNA Remover (Toyobo Co., Ltd.) according to the procedure described in the instruction manual attached to the kit. Using the synthesized cDNA, expression of mRNA of cell senescence-related gene and biological tissue repair-related gene p21 gene, p53 gene, MMP-1 gene and internal standard GAPDH by KOD SYBR qPCR Mix (Toyo Spinning Co., Ltd.) The amounts were measured by quantitative PCR, respectively.
- FIG. 3 shows the primers used for quantitative PCR.
- FIG. 4 shows the mRNA expression level of the p21 gene
- FIG. 5 shows the mRNA expression level of the p53 gene
- FIG. 6 shows the mRNA expression level of the MMP-1 gene.
- the numerical value obtained from qPCR performed using the primers for each gene was normalized to GAPDH and shown as a relative value ( ⁇ ct value) with respect to the control, and used as the vertical axis of each figure. ..
- the horizontal axis "EV (-) purification method (-)” is the result when TIG3 cells (control) without EV addition are used, and "EV (MSC) purification method (UC)” is a comparative example.
- the "EV (with MSC TNF ⁇ stimulation) purification method (UC)” was obtained in Example 1.
- the “EV (MSC) purification method (PS)” was obtained in Example 3 as "extracellular”.
- Example 3-5 Evaluation of Cellular Senescence Suppressing Activity and Living Tissue Repair Promoting Activity of Extracellular vesicles Obtained by Ultracentrifugal Method
- Extracellular vesicle solution bone marrow-derived MSC, super Quantify the mRNA expression levels of the cell senescence-related genes and the biological tissue repair-related genes, p21 gene, p53 gene, and MMP-1 gene, respectively, by the same method as in Example 6-11 except that "centrifugal method)” was used.
- the cell senescence inhibitory activity and the biological tissue repair promoting activity of extracellular vesicles were evaluated by measurement by PCR.
- the extracellular vesicle solution used for the measurement in each comparative example and the mRNA whose expression level was confirmed are as shown in Table 2 above.
- the results of quantitative PCR are shown in FIG. 4-6 together with the results of Example 6-11.
- Examples 12-18 Evaluation of Cellular Senescence Suppressing Activity and Living Tissue Repair Promoting Activity of Extracellular vesicles obtained by PS Affinity Method
- Centrifugal method, TNF ⁇ stimulation) “ Extracellular vesicle solution (umbilical band-derived MSC, PS method, TNF ⁇ stimulation) ”obtained in Example 4
- Extracellular vesicle solution (umbilical band-derived) obtained in Example 5 MSC, PS method) was used in an amount of 7.5 ⁇ 10 9 parameters / mL, but by the same method as in Example 6-11, p21, which is a cell senescence-related gene and a biological tissue repair-related gene.
- the cell senescence inhibitory activity and biological tissue repair promoting activity of extracellular vesicles were evaluated by measuring the mRNA expression levels of the gene, p53 gene, and MMP-1 gene by quantitative PCR, respectively.
- the extracellular vesicle solution used for the measurement in each example, the mRNA whose expression level was confirmed, and the numbers in the figure showing the results are shown in Table 3 below together with the conditions of Comparative Examples 6-8.
- the results of quantitative PCR are shown in FIG. 7-9 together with the results of Comparative Example 6-8.
- Comparative Example 6-8 Evaluation of Cellular Senescence Inhibitory Activity and Living Tissue Repair Promoting Activity of Extracellular Cyrils Obtained by Ultracentrifugal Method
- Extracellular vesicle solution obtained in Comparative Example 2 as “Extracellular vesicle solution” (umbilical band-derived MSC, super Cellular senescence-related gene and p21 gene, which is a biological tissue repair-related gene, by the same method as in Example 6-11, except that the final concentration of 7.5 ⁇ 10 9 parameters / mL was used.
- the mRNA expression levels of the p53 gene and the MMP-1 gene were evaluated by measuring them by quantitative PCR, respectively.
- the extracellular vesicle solution used for the measurement in each comparative example and the mRNA whose expression level was confirmed are as shown in Table 3 above.
- the results of quantitative PCR are shown in FIG. 7-9 together with the results of Examples 12-18.
- extracellular vesicles obtained from mesenchymal stem cells stimulated with inflammatory cytokines and extracellular vesicles obtained from mesenchymal stem cells by the PS affinity method are classified into the types of mesenchymal stem cells. Therefore, the mRNA expression levels of cell senescence-related genes and biological tissue repair-related genes were suppressed more than those of extracellular vesicles obtained from mesenchymal stem cells by the ultracentrifugation method. That is, by stimulating mesenchymal stem cells with inflammatory cytokines, the cell aging inhibitory activity and biological tissue repair promoting activity of the acquired extracellular vesicles are enhanced, and the cells acquired from the mesenchymal stem cells by the PS method.
- the outer vesicles have higher cell aging inhibitory activity and biological tissue repair promoting activity than the extracellular vesicles obtained from mesenchymal stem cells by the ultracentrifugation method.
- extracellular vesicles obtained from mesenchymal stem cells stimulated by inflammatory cytokines by the PS method have extremely high cell senescence inhibitory activity and biological tissue repair promoting activity.
- Examples 19-28 and Comparative Example 9 Acquisition of extracellular vesicles from mesenchymal stem cells Similar to Examples 1-5 and Comparative Example 1-2, except that the conditions shown in Table 4 below (mesenchymal stem cells, acquisition method, stimulation) were followed. Extracellular vesicles were obtained by the method.
- bone marrow-derived MSC is "Poietics TM human mesenchymal stem cell (LONZA), which is a bone marrow-derived mesenchymal stem cell
- umbilical band-derived MSC is "Human Mesenchymal Stem, which is a umbilical band-derived mesenchymal stem cell.”
- Cells from Umbical Cord Matrix (PromoCell) “Fat-derived MSC” is “Fat-derived mesenchymal stem cell Human Adipose-Delivered Stem Cells (LONZA)”
- PS method is PS affinity method, "stimulation” Indicates stimulation by inflammatory cytokines, respectively.
- Examples 29-69 and Comparative Examples 10-26 Evaluation of cell aging inhibitory activity and biological tissue repair promoting activity of extracellular vesicles Using the extracellular vesicle solutions obtained in Examples 19-28 and Comparative Example 9, cell aging-related genes and biological tissue repair-related genes were used. By measuring the mRNA expression levels of certain p16 gene, p21 gene, MMP-1 gene, type I Collagen gene (COL1A1 gene), type III Collagen gene (COL3A1 gene), and HAS1 gene by quantitative PCR, each of the extracellular vesicles The cell aging inhibitory activity and the biological tissue repair promoting activity were evaluated. Specifically, it was carried out by the following method.
- TIG3S cells (distributed from JCRB, after 50 or more divisions), which are human skin-derived fibroblasts, are suspended in DMEM (Fuji Film Wako Pure Chemical Industries, Ltd.) containing 10% FBS (Biosera), and 96-well plate ( Corning) was seeded with 3 ⁇ 10 3 cells per well and 100 ⁇ L of medium. 16 hours after cell seeding, the "extracellular vesicle solution" shown in Tables 5 and 6 below was added to each well in an amount having a final concentration of 2 ⁇ 10 8 parts / mL, and the cells were cultured for 96 hours.
- RNA was extracted according to the procedure described in the instruction manual attached to the kit.
- cDNA was synthesized using Revertra Ace TM qPCR RT Master Mix with gDNA Remover (Toyobo Co., Ltd.) according to the procedure described in the instruction manual attached to the kit.
- KOD SYBR qPCR Mix (Toyo Spinning Co., Ltd.) used the p16 gene, p21 gene, MMP-1 gene, and type I Collagen gene (COL1A1 gene), which are cell aging-related genes and biological tissue repair-related genes.
- Type III Collagen gene (COL3A1 gene), HAS1 gene and GAPDH mRNA expression level, which is an internal standard, were measured by quantitative PCR, respectively.
- the sequence of the primer used is shown in FIG. FIG. 11 shows the mRNA expression level of the p16 gene
- FIG. 12 shows the mRNA expression level of the p21 gene
- FIG. 13 shows the mRNA expression level of the MMP-1 gene
- FIG. 14 shows the mRNA expression level of the type I Collagen gene
- FIG. 15 shows the mRNA expression level of the type III Collagen.
- FIG. 16 shows the results of the HAS1 gene mRNA expression level.
- the numerical value obtained from qPCR performed using the primers for each gene was normalized to GAPDH and shown as a relative value ( ⁇ ct value) with respect to the control, and used as the vertical axis of each figure. ..
- the horizontal axis "purification method (-) extracellular vesicles (-)” is the result when TIG3S cells (control) without extracellular vesicles added, and "UC” of “purification method” is Ultracentrifugal method, "PS” is PS affinity method, "MSC” of "extracellular vesicles” is not stimulated by inflammatory cytokines, “MSC TNF ⁇ ” is stimulated by TNF ⁇ , and “MSC IL-1 ⁇ ” is IL-1 ⁇ .
- the mRNAs whose expression levels were confirmed in each Example and Comparative Example, and the numbers in the figure showing the results are shown in Tables 5 and 6, respectively.
- extracellular vesicles obtained from mesenchymal stem cells stimulated with inflammatory cytokines and extracellular vesicles obtained from mesenchymal stem cells by the PS affinity method are classified into the types of mesenchymal stem cells. Therefore, the mRNA expression levels of cell senescence-related genes and biological tissue repair-related genes were suppressed more than those of extracellular vesicles obtained from mesenchymal stem cells by the ultracentrifugation method. That is, by stimulating mesenchymal stem cells with inflammatory cytokines, the cell aging inhibitory activity and biological tissue repair promoting activity of the acquired extracellular vesicles are enhanced, and the cells acquired from the mesenchymal stem cells by the PS method.
- the outer vesicles have higher cell aging inhibitory activity and biological tissue repair promoting activity than the extracellular vesicles obtained from mesenchymal stem cells by the ultracentrifugation method.
- extracellular vesicles obtained from mesenchymal stem cells stimulated by inflammatory cytokines by the PS method have extremely high cell senescence inhibitory activity and biological tissue repair promoting activity.
- a cell senescence inhibitor, a biological tissue repair promoter, a gene expression regulator, and an external composition for skin are provided from mesenchymal stem cells, which contain extracellular vesicles having a cell senescence inhibitory action as active ingredients.
- the cell senescence inhibitor and the external composition for skin provided by the present invention regulate the gene expression of cell senescence-related genes and biological tissue repair-related genes, and have cell proliferation promoting action, collagen production promoting or degradation suppressing action, and hyaluronic acid. It has great industrial utility in that cell senescence is suppressed by promoting production or suppressing degradation, promoting elastin production or inhibiting degradation, and the like.
- the gene expression regulator provided by the present invention is at least one selected from a cell growth inhibitory gene, a collagen gene, a collagen degrading enzyme gene, a hyaluronan synthase gene, a hyaluronan degrading enzyme gene, an elastin gene, and an elastin degrading enzyme gene. Species gene expression is regulated.
- the biological tissue repair promoter provided by the present invention has, for example, dysfunction due to cell proliferation promoting action, collagen production promoting or decomposition suppressing action, hyaluronic acid production promoting or decomposition suppressing action, elastin production promoting or decomposition suppressing action, etc. It is possible to regenerate the functions of cells, biological tissues, and organs that have become dysfunctional.
Abstract
Description
(1)間葉系幹細胞に由来する細胞外小胞を有効成分とする、細胞老化抑制剤又は生体組織修復促進剤であって、
細胞外小胞が炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものである、又は/及び細胞外小胞がホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、細胞老化抑制剤又は生体組織修復促進剤;
(2)前記間葉系幹細胞が、iPS細胞に由来するもの、或いは臍帯、臍帯血、骨髄、脂肪、筋肉、神経、皮膚、歯髄、羊膜及び胎盤からなる群より選択される1種以上の組織に由来するものである、上記(1)に記載の細胞老化抑制剤又は生体組織修復促進剤;
(3)前記間葉系幹細胞が、腫瘍壊死因子α、インターロイキン1、インターロイキン6、インターロイキン8、インターロイキン12、インターロイキン18及びインターフェロンγから選ばれる少なくとも1種の炎症性サイトカインにより刺激を加えたものである、上記(1)又は(2)に記載の細胞老化抑制剤又は生体組織修復促進剤;
(4)前記細胞外小胞が、ホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(1)~(3)のいずれか1つに記載の細胞老化抑制剤又は生体組織修復促進剤;
(5)前記ホスファチジルセリンに対する親和性を有する物質が、Timタンパク質である、上記(4)に記載の細胞老化抑制剤又は生体組織修復促進剤;
(6)前記Timタンパク質が、Tim4タンパク質、Tim3タンパク質及びTim1タンパク質から選択されるものである、上記(5)に記載の細胞老化抑制剤又は生体組織修復促進剤;
(7)前記細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものであり、且つホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(1)又は(2)に記載の細胞老化抑制剤又は生体組織修復促進剤;
(8)前記細胞老化抑制又は生体組織修復促進が、細胞増殖促進作用、コラーゲンの産生促進若しくは分解抑制作用、ヒアルロン酸の産生促進若しくは分解抑制作用、及びエラスチンの産生促進若しくは分解抑制作用から選ばれる少なくとも1種の作用によるものである、上記(1)~(7)のいずれか1つに記載の細胞老化抑制剤又は生体組織修復促進剤;
である。
(9)炎症性サイトカインにより刺激を加えた間葉系幹細胞から細胞外小胞を得ること、又は/及び間葉系幹細胞由来の細胞外小胞からホスファチジルセリンに対して親和性を有する物質を用いる方法により細胞外小胞を得ることを含む、細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
(10)前記間葉系幹細胞が、iPS細胞に由来するもの、或いは臍帯、臍帯血、骨髄、脂肪、筋肉、神経、皮膚、歯髄、羊膜及び胎盤からなる群より選択される1種以上の組織に由来するものである、上記(9)に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
(11)前記間葉系幹細胞が、腫瘍壊死因子α、インターロイキン1、インターロイキン6、インターロイキン8、インターロイキン12、インターロイキン18及びインターフェロンγから選ばれる少なくとも1種の炎症性サイトカインにより刺激を加えたものである、上記(9)又は(10)に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
(12)前記細胞外小胞が、ホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(9)~(11)のいずれか1つに記載の細胞老化抑制作用又は生体組織修作用を有する細胞外小胞の製造方法;
(13)前記ホスファチジルセリンに対する親和性を有する物質が、Timタンパク質である、上記(9)~(12)のいずれか1つに記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
(14)前記Timタンパク質が、Tim4タンパク質、Tim3タンパク質及びTim1タンパク質から選択されるものである、上記(13)に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
(15)前記細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものであり、且つホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(9)又は(10)に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
(16)前記細胞老化抑制作用又は生体組織修復促進作用が、コラーゲンの産生促進若しくは分解抑制作用、ヒアルロン酸の産生促進若しくは分解抑制作用、及びエラスチンの産生促進若しくは分解抑制作用から選ばれる少なくとも1種の作用によるものである、上記(9)~(15)のいずれか1つに記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法;
である。
(17)間葉系幹細胞に由来する細胞外小胞を有効成分とする、遺伝子発現調節剤であって、細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものである、又は/及び細胞外小胞がホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものであり、且つ
遺伝子が、細胞増殖抑制遺伝子、コラーゲン遺伝子、コラーゲン分解酵素遺伝子、ヒアルロン酸合成酵素遺伝子、ヒアルロン酸分解酵素遺伝子、エラスチン遺伝子、及びエラスチン分解酵素遺伝子から選ばれる少なくとも1種の遺伝子である、遺伝子発現調節剤;
である。
(18)炎症性サイトカインにより刺激を加えた間葉系幹細胞から細胞外小胞を得ること、又は/及び間葉系幹細胞由来の細胞外小胞からホスファチジルセリンに対して親和性を有する物質を用いる方法により細胞外小胞を得ることを含む、遺伝子発現調節作用を有する細胞外小胞の製造方法;
(19)前記間葉系幹細胞が、iPS細胞に由来するもの、或いは臍帯、臍帯血、骨髄、脂肪、筋肉、神経、皮膚、歯髄、羊膜及び胎盤からなる群より選択される1種以上の組織に由来するものである、上記(18)に記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
(20)前記間葉系幹細胞が、腫瘍壊死因子α、インターロイキン1、インターロイキン6、インターロイキン8、インターロイキン12、インターロイキン18及びインターフェロンγから選ばれる少なくとも1種の炎症性サイトカインにより刺激を加えたものである、上記(18)又は(19)に記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
(21)前記細胞外小胞が、ホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(18)~(20)のいずれか1つに記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
(22)前記ホスファチジルセリンに対する親和性を有する物質が、Timタンパク質である、上記(21)に記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
(23)前記Timタンパク質が、Tim4タンパク質、Tim3タンパク質及びTim1タンパク質から選択されるものである、上記(22)に記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
(24)前記細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものであり、且つホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(18)~(20)のいずれか1つに記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
(25)前記遺伝子が、細胞増殖抑制遺伝子、コラーゲン遺伝子、コラーゲン分解酵素遺伝子、ヒアルロン酸合成酵素遺伝子、ヒアルロン酸分解酵素遺伝子、エラスチン遺伝子、及びエラスチン分解酵素遺伝子から選ばれる少なくとも1種の遺伝子である、上記(18)~(24)のいずれか1つに記載の遺伝子発現調節作用を有する細胞外小胞の製造方法;
である。
(26)上記(1)~(8)のいずれか1つに記載の細胞老化抑制剤又は生体組織修復促進剤を含有する細胞老化抑制用又は生体組織修復促進用皮膚外用組成物;
である。
(27)炎症性サイトカインにより刺激を加えた間葉系幹細胞から細胞外小胞を得ること、又は/及び間葉系幹細胞由来の細胞外小胞からホスファチジルセリンに対して親和性を有する物質を用いる方法により細胞外小胞を得ることを含む、細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(28)前記間葉系幹細胞が、iPS細胞に由来するもの、或いは臍帯、臍帯血、骨髄、脂肪、筋肉、神経、皮膚、歯髄、羊膜及び胎盤からなる群より選択される1種以上の組織に由来するものである、上記(27)に記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(29)前記間葉系幹細胞が、腫瘍壊死因子α、インターロイキン1、インターロイキン6、インターロイキン8、インターロイキン12、インターロイキン18及びインターフェロンγから選ばれる少なくとも1種の炎症性サイトカインにより刺激を加えたものである、上記(27)又は(28)に記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(30)前記細胞外小胞が、ホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(27)~(29)のいずれか1つに記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(31)前記ホスファチジルセリンに対する親和性を有する物質が、Timタンパク質である、上記(27)~(30)のいずれか1つに記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(32)前記Timタンパク質が、Tim4タンパク質、Tim3タンパク質及びTim1タンパク質から選択されるものである、上記(31)に記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(33)前記細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものであり、且つホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、上記(27)~(29)のいずれか1つに記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
(34)前記細胞老化抑制作用又は生体組織修復促進作用が、コラーゲンの産生促進若しくは分解抑制作用、ヒアルロン酸の産生促進若しくは分解抑制作用、及びエラスチンの産生促進若しくは分解抑制作用から選ばれる少なくとも1種の作用によるものである、上記(27)~(33)のいずれか1つに記載の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物の製造方法;
である。
本発明が提供する細胞老化抑制剤、生体組織修復促進剤、遺伝子発現調節剤、皮膚外用組成物における有効成分である細胞外小胞(以下、「本発明に係る細胞外小胞」と略記する場合がある。)は、炎症性サイトカインにより刺激を加えた本発明に係るMSCに由来する細胞外小胞(以下、「刺激MSC由来細胞外小胞」と略記する場合がある)、又は/及びホスファチジルセリンに対して親和性を有する物質を用いて取得した細胞外小胞(以下、「PS陽性細胞外小胞」と略記する場合がある)である。
また、前記EVを含む細胞培養上清液は、例えば、本発明に係るMSCを細胞培養により増殖させ、増殖させた細胞をさらにEV産生培地により培養することにより得られる。本発明に係るMSCの細胞培養やEV生産培地による培養は、この分野で行われる常法に従って行えばよく、用いられる培地や培養条件は特に限定されない。
(1)カルシウムイオン存在下、EVを含む細胞培養上清液とPS親和性物質とを接触させて、当該細胞培養上清液中のPS陽性細胞外小胞とPS親和性物質との複合体(本発明に係る複合体)を形成させること(以下、「複合体形成工程」と略記する場合がある)、
(2)前記EVを含む細胞培養上清液から、複合体形成工程で得られた本発明に係る複合体を分離すること(以下、「複合体分離工程」と略記する場合がある)、
(3)本発明に係る複合体からPS陽性細胞外小胞を分離し、PS陽性細胞外小胞を取得すること(以下、「取得工程」と略記する場合がある)。
PS親和性物質と前記EVを含む細胞培養上清液中のPS陽性細胞外小胞との本発明に係る複合体が形成され、複合体分離工程を実施するまで、即ち、本発明に係る複合体を分離する工程に付すまでの本発明に係る複合体を含有する溶液中には、前記した如き濃度のカルシウムイオンが必要である。
磁気担体を不溶性担体として用いる場合、複合体形成工程をおこなった容器を要すればマグネットスタンドに設置し、磁力を用いて管壁に得られた本発明に係る複合体を集合させ、上清の試料を除く。
本発明の細胞老化抑制剤は、本発明に係る細胞外小胞を有効成分として含む。本発明の細胞老化抑制剤によれば、細胞老化関連遺伝子の遺伝子発現が調節されることによる細胞増殖促進作用、コラーゲンの産生促進若しくは分解抑制作用、ヒアルロン酸の産生促進若しくは分解抑制作用、及びエラスチン産生促進作用若しくは分解抑制作用から選ばれる少なくとも1種の細胞老化抑制作用に基づき、細胞老化を抑制することができる。
本発明の生体組織修復促進剤は、本発明に係る細胞外小胞を有効成分として含む。本発明の生体組織修復促進剤によれば、生体組織修復関連遺伝子の発現が調節され、細胞が増殖し膠原繊維や弾性繊維等の生体組織を構成する線維の修復が促進されること等により、恒常的機能が低下又は消失した生体組織の修復が促進される。具体的には、細胞増殖抑制遺伝子の遺伝子発現が調節されることによる細胞増殖促進作用、コラーゲンの産生促進若しくは分解抑制作用による膠原繊維(コラーゲン線維)の修復促進作用、エラスチン産生促進作用若しくは分解抑制作用による弾性繊維(エラスチン線維)の修復作用、及びヒアルロン酸の産生促進若しくは分解抑制作用から選ばれる少なくとも1種の生体組織修復促進作用に基づき、生体組織の修復を促進することができる。
本発明の細胞老化抑制用又は生体組織修復促進用皮膚外用組成物(以下、「本発明の皮膚外用組成物」と略記する場合がある)は、本発明に係る細胞外小胞を有効成分として含み、皮膚に外用される全ての外用組成物を意味する。本発明の皮膚外用組成物は、具体的には、例えば、化粧料、経皮医薬品、経皮医薬部外品等の用途に適用することができる。
本発明の遺伝子発現調節剤は、本発明に係る細胞外小胞を有効成分として含むものであり、p53遺伝子、p21遺伝子、p16遺伝子等の細胞増殖抑制遺伝子;I型コラーゲン遺伝子(COL1A1遺伝子遺伝子、COL1A2遺伝子)、III型コラーゲン遺伝子(COL3A1遺伝子)、V型コラーゲン遺伝子(COL5A1遺伝子、COL5A2遺伝子)、XVII型コラーゲン遺伝子(COL17A1遺伝子)等のコラーゲン遺伝子;ヒアルロン酸合成酵素1遺伝子(HAS1遺伝子)、ヒアルロン酸合成酵素2遺伝子(HAS2遺伝子)等のヒアルロン酸合成酵素遺伝子;ELN遺伝子等のエラスチン遺伝子;MMP-1遺伝子、MMP-2遺伝子、MMP-3遺伝子、MMP-8遺伝子、MMP-9遺伝子、MMP-13遺伝子等のコラーゲン分解酵素遺伝子;HYAL1遺伝子、HYAL2遺伝子、HYAL3遺伝子等のヒアルロン酸分解酵素遺伝子;MMP-2遺伝子、MMP-9遺伝子等のエラスチン分解酵素遺伝子から選ばれる少なくとも1種の遺伝子(以下、「発現調節対象遺伝子」と略記する場合がある)の遺伝子発現調節の用途に適用される。前記発現調節対象遺伝子としては、細胞増殖抑制遺伝子、コラーゲン遺伝子、コラーゲン分解酵素遺伝子、ヒアルロン酸合成酵素遺伝子が好ましく、p53遺伝子、p21遺伝子、p16遺伝子、MMP-1遺伝子、COL1A1遺伝子、COL3A1遺伝子、HAS1遺伝子がより好ましい。
(1)細胞培養
骨髄由来間葉系幹細胞であるPoieticsTMヒト間葉系幹細胞(LONZA社)を、15%FBS(Selborne Biological Sevice Pty.社)含有MEMα(L-グルタミン、フェノールレッド含有、富士フイルム和光純薬(株))を増殖培地として用いて培養した。その後、培養した骨髄由来間葉系幹細胞を細胞数3×105で100mm細胞培養用ディッシュ(Corning International社)に播種し、5%CO2、37℃の条件に設定した細胞培養用インキュベータ内で72時間培養し、細胞数3×106まで増殖させた。
(2)炎症性サイトカインによる刺激
(1)で増殖させた骨髄由来間葉系幹細胞にTNFα(R&D systems社)を終濃度20ng/mLで添加して刺激し、さらに24時間培養した。
(3)細胞外小胞の産生
(2)で培養した骨髄由来間葉系幹細胞を、細胞外小胞産生培地である10%GIBCO:Fetal Bovine Serum, exosome-depleted, One ShotTM format(Thermo Fisher Scientific社)含有D-MEM(富士フイルム和光純薬(株))20mLに置換し、5%CO2、37℃の条件に設定した細胞培養用インキュベータ内で120時間培養を行った。その後、得られた培養上清を50mLの遠沈管に回収して2000×gで20分間遠心し、上清を回収した。
(4)超遠心法による細胞外小胞の取得
次いで、(3)で回収した培養上清を、超遠心分離機(Beckman:OptimaTM L-100XP)を用いて110,000×gで70分間遠心分離した。得られたペレットに1mLのPBSを添加し、再度110,000×gで70分間遠心分離した。最終的に得られたペレットをEV-SaveTM 細胞外小胞ブロッキング試薬(富士フイルム和光純薬(株))を添加したPBSにより溶解した。以下、得られた溶液を「細胞外小胞溶液(骨髄由来MSC、超遠心法、TNFα刺激)」と記載する場合がある。
「PoieticsTMヒト間葉系幹細胞(LONZA社)」の代わりに、「臍帯由来間葉系幹細胞であるHuman Mesenchymal Stem Cells from Umbilical Cord Matrix(PromoCell社)」を用いた以外は、実施例1と同様の方法により超遠心法により細胞外小胞を取得した。以下、得られた溶液を「細胞外小胞溶液(臍帯由来MSC、超遠心法、TNFα刺激)」と記載する場合がある。
「実施例1(2)炎症性サイトカインによる刺激」を行わなかった以外は、実施例1と同様の方法により、超遠心法により細胞外小胞を取得した。以下、得られた溶液を「細胞外小胞溶液(骨髄由来MSC、超遠心法)」と記載する場合がある。
「PoieticsTMヒト間葉系幹細胞(LONZA社)」の代わりに、「臍帯由来間葉系幹細胞であるHuman Mesenchymal Stem Cells from Umbilical Cord Matrix(PromoCell社)」を用いた以外は、比較例1と同様の方法により、超遠心法により細胞外小胞を取得した。以下、得られた溶液を「細胞外小胞溶液(臍帯由来MSC、超遠心法)」と記載する場合がある。
「実施例1(4)超遠心法による細胞外小胞の取得」の代わりに、下記手順に従ってPSアフィニティー法により細胞外小胞を取得した以外は、実施例1と同様の方法により細胞外小胞を取得した。実施例1(3)で回収した培養上清1mLから、MagCaptureTM Exosome Isolation Kit PS(富士フイルム和光純薬(株))を用いて、当該キットに添付の説明書に記載の手順に従って細胞外小胞を単離し、EV-SaveTM 細胞外小胞ブロッキング試薬(富士フイルム和光純薬(株))を添加した1mM EDTA含有PBS(Phosphate-buffered saline)中に細胞外小胞を得た。その後、ビバスピン500(ザルトリウス社、分画分子量:100,000(100K)、膜材質:PES)を用いて、EV-SaveTM 細胞外小胞ブロッキング試薬を添加したPBSへバッファー交換を行った。以下、得られた溶液を「細胞外小胞溶液(骨髄由来MSC、PS法、TNFα刺激)」と記載する場合がある。
「PoieticsTMヒト間葉系幹細胞(LONZA社)」の代わりに、「臍帯由来間葉系幹細胞であるHuman Mesenchymal Stem Cells from Umbilical Cord Matrix(PromoCell社)」を用いた以外は、実施例3と同様の方法によりPS法により細胞外小胞を取得した。以下、得られた溶液を「細胞外小胞溶液(臍帯由来MSC、PS法、TNFα刺激)」と記載する場合がある。
「PoieticsTMヒト間葉系幹細胞(LONZA社)」の代わりに、「臍帯由来間葉系幹細胞であるHuman Mesenchymal Stem Cells from Umbilical Cord Matrix(PromoCell社)」を使用し、「実施例1(2)炎症性サイトカインによる刺激」を行わなかった以外は、実施例1と同様の方法によりPS法により細胞外小胞を取得した。以下、得られた溶液を「細胞外小胞溶液(臍帯由来MSC、PS法)」と記載する場合がある。
実施例1-5および比較例1-2でそれぞれ得られた「細胞外小胞溶液」の単位体積当たりの粒子数を、NanoSight(Malvern Panalytical社)を用いて、ナノ粒子トラッキング解析法(Nano Tracking Analysis法)により、NanoSightの説明書に記載の手順に従って測定し、平均粒子径と単位体積当たりの平均粒子数[particles/mL]を算出した。測定に用いた「細胞外小胞溶液」および得られた平均粒子径と単位体積当たりの平均粒子数を下記表1に示す。また、得られた粒径分布のグラフを実験例2の結果と併せて図1に示す。図1のグラフにおいて、縦軸は粒子数、横軸は粒径をそれぞれ示す。
実施例1で得られた「細胞外小胞溶液(骨髄由来MSC、超遠心法、TNFα刺激)」および実施例3で得られた「細胞外小胞溶液(骨髄由来MSC、PS法、TNFα刺激)」を用いて、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp21遺伝子、p53遺伝子、MMP-1遺伝子のmRNA発現量をそれぞれ定量PCRにより測定することにより細胞外小胞の細胞老化抑制活性および生体組織修復促進活性を評価した。具体的には、以下の方法により実施した。10%FBS(Biosera社)含有DMEM(富士フイルム和光純薬(株))にヒト胎児肺由来線維芽細胞であるTIG3細胞(JCRBより分譲、70回以上分裂後のもの)を懸濁し、96 well plate(Corning社)に1ウェルあたり細胞数2×103、培地量100μLでそれぞれ播種した。細胞播種から16時間後、下記表2に記載の「細胞外小胞溶液」を終濃度3×109particles/mLとなる量それぞれのウェルに添加し、96時間培養した。PureLinkTM RNA Mini キット(ThermoFisher Scientific社)を用いて、当該キットに添付の説明書に記載の手順に従ってRNAをそれぞれ抽出した。抽出したRNA50ngから、ReverTra AceTM qPCR RT Master Mix with gDNA Remover(東洋紡(株))を用いて、当該キットに添付の説明書に記載の手順に従ってcDNAを合成した。合成したcDNAを用いて、KOD SYBR qPCR Mix (東洋紡(株))により、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp21遺伝子、p53遺伝子、MMP-1遺伝子および内部標準であるGAPDHのmRNA発現量を、それぞれ定量PCRにより測定した。定量PCRに使用したプライマーを図3にそれぞれ示す。
図4はp21遺伝子のmRNA発現量、図5はp53遺伝子のmRNA発現量、図6はMMP-1遺伝子のmRNA発現量の結果である。各遺伝子の発現量は、各遺伝子に対するプライマーを用いて行ったqPCRから得られた数値をGAPDHに対してノーマライズし、コントロールに対する相対値(△△ct値)として示し、各図の縦軸とした。図中、横軸の「EV(-) 精製方法(-)」は、EV非添加のTIG3細胞(コントロール)を用いた場合の結果、「EV(MSC) 精製方法(UC)」は、比較例1で得られた「細胞外小胞溶液(骨髄由来MSC、超遠心法)」を用いた場合の結果、「EV(MSC TNFα刺激あり) 精製方法(UC)」は、実施例1で得られた「細胞外小胞溶液(骨髄由来MSC、超遠心法、TNFα刺激)」を用いた場合の結果、「EV(MSC) 精製方法(PS)」は、実施例3で得られた「細胞外小胞溶液(骨髄由来MSC、PS法、TNFα刺激)」を用いた場合の結果をそれぞれ示す。各実施例において測定に用いた細胞外小胞溶液、発現量を確認したmRNA、結果を示した図の番号を、比較例3-5のものとあわせて下記表2にそれぞれ示す。
「細胞外小胞溶液」として比較例1で得られた「細胞外小胞溶液(骨髄由来MSC、超遠心法)」を用いた以外は、実施例6-11と同様の方法により、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp21遺伝子、p53遺伝子、MMP-1遺伝子のmRNA発現量をそれぞれ定量PCRにて測定することにより細胞外小胞の細胞老化抑制活性および生体組織修復促進活性を評価した。各比較例において測定に用いた細胞外小胞溶液、発現量を確認したmRNAは、上記表2に記載の通りである。定量PCRの結果を実施例6-11の結果と併せて、図4-6にそれぞれ示す。
「細胞外小胞溶液」として実施例2で得られた「細胞外小胞溶液(臍帯由来MSC、超遠心法、TNFα刺激)」、実施例4で得られた「細胞外小胞溶液(臍帯由来MSC、PS法、TNFα刺激)」および実施例5で得られた「細胞外小胞溶液(臍帯由来MSC、PS法)」を終濃度7.5×109particles/mLとなる量用いた以外は、実施例6-11と同様の方法により、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp21遺伝子、p53遺伝子、MMP-1遺伝子のmRNA発現量をそれぞれ定量PCRにて測定することにより細胞外小胞の細胞老化抑制活性および生体組織修復促進活性を評価した。各実施例において測定に用いた細胞外小胞溶液、発現量を確認したmRNA、結果を示した図の番号を、比較例6-8の条件とあわせて下記表3にそれぞれ示す。定量PCRの結果を比較例6-8の結果と併せて、図7-9にそれぞれ示す。
「細胞外小胞溶液」として比較例2で得られた「細胞外小胞溶液(臍帯由来MSC、超遠心法)」を終濃度7.5×109particles/mLとなる量用いた以外は、実施例6-11と同様の方法により、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp21遺伝子、p53遺伝子、MMP-1遺伝子のmRNA発現量をそれぞれ定量PCRにより測定することにより評価した。各比較例において測定に用いた細胞外小胞溶液、発現量を確認したmRNAは、上記表3に記載の通りである。定量PCRの結果を実施例12-18の結果と併せて、図7-9にそれぞれ示す。
下記表4に記載の条件(間葉系幹細胞、取得方法、刺激)に従った以外は、実施例1-5および比較例1-2と同様の方法により、それぞれ細胞外小胞を取得した。表4中、「骨髄由来MSC」は「骨髄由来間葉系幹細胞であるPoieticsTMヒト間葉系幹細胞(LONZA社)」、「臍帯由来MSC」は「臍帯由来間葉系幹細胞であるHuman Mesenchymal Stem Cells from Umbilical Cord Matrix(PromoCell社)」、「脂肪由来MSC」は「脂肪由来間葉系幹細胞であるHuman Adipose-Derived Stem Cells(LONZA社)」、「PS法」はPSアフィニティー法、「刺激」は炎症性サイトカインによる刺激をそれぞれ示す。
実施例19-28および比較例9で得られた細胞外小胞溶液を用いて、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp16遺伝子、p21遺伝子、MMP-1遺伝子、I型Collagen遺伝子(COL1A1遺伝子)、III型Collagen遺伝子(COL3A1遺伝子)、HAS1遺伝子のmRNA発現量をそれぞれ定量PCRにより測定することにより細胞外小胞の細胞老化抑制活性および生体組織修復促進活性を評価した。具体的には、以下の方法により実施した。10%FBS(Biosera社)含有DMEM(富士フイルム和光純薬(株))にヒト皮膚由来線維芽細胞であるTIG3S細胞(JCRBより分譲、50回以上分裂後のもの)を懸濁し、96well plate(Corning社)に1ウェルあたり細胞数3×103、培地量100μLでそれぞれ播種した。細胞播種から16時間後、下記表5及び6に記載の「細胞外小胞溶液」を終濃度2×108particles/mLとなる量それぞれのウェルに添加し、96時間培養した。その後、PureLinkTM RNA Mini キット(ThermoFisher Scientific社)を用いて、当該キットに添付の説明書に記載の手順に従ってRNAをそれぞれ抽出した。抽出したRNA50ngから、ReverTra AceTM qPCR RT Master Mix with gDNA Remover(東洋紡(株))を用いて、当該キットに添付の説明書に記載の手順に従ってcDNAを合成した。合成したcDNAを用いて、KOD SYBR qPCR Mix (東洋紡(株))により、細胞老化関連遺伝子および生体組織修復関連遺伝子であるp16遺伝子、p21遺伝子、MMP-1遺伝子、I型Collagen遺伝子(COL1A1遺伝子)、III型Collagen遺伝子(COL3A1遺伝子)、HAS1遺伝子および内部標準であるGAPDHのmRNA発現量を、それぞれ定量PCRにより測定した。図10に使用したプライマーの配列を示す。図11はp16遺伝子のmRNA発現量、図12はp21遺伝子のmRNA発現量、図13はMMP-1遺伝子のmRNA発現量、図14はI型Collagen遺伝子のmRNA発現量、図15はIII型Collagen遺伝子のmRNA発現量、図16はHAS1遺伝子のmRNA発現量の結果である。各遺伝子の発現量は、各遺伝子に対するプライマーを用いて行ったqPCRから得られた数値をGAPDHに対してノーマライズし、コントロールに対する相対値(△△ct値)として示し、各図の縦軸とした。図中、横軸の「精製方法(-) 細胞外小胞(-)」は、細胞外小胞非添加のTIG3S細胞(コントロール)を用いた場合の結果、「精製方法」の「UC」は超遠心法、「PS」はPSアフィニティー法、「細胞外小胞」の「MSC」は炎症性サイトカインによる刺激なし、「MSC TNFα」はTNFαによる刺激あり、「MSC IL-1β」はIL-1βによる刺激ありをそれぞれ示す。各実施例及び比較例において発現量を確認したmRNA、及び結果を示した図の番号を下記表5及び表6にそれぞれ示す。
Claims (18)
- 間葉系幹細胞に由来する細胞外小胞を有効成分とする、細胞老化抑制剤又は生体組織修復促進剤であって、
細胞外小胞が炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものである、又は/及び細胞外小胞がホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、細胞老化抑制剤又は生体組織修復促進剤。 - 前記間葉系幹細胞が、iPS細胞に由来するもの、或いは臍帯、臍帯血、骨髄、脂肪、筋肉、神経、皮膚、歯髄、羊膜及び胎盤からなる群より選択される1種以上の組織に由来するものである、請求項1に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 前記間葉系幹細胞が、腫瘍壊死因子α、インターロイキン1、インターロイキン6、インターロイキン8、インターロイキン12、インターロイキン18及びインターフェロンγから選ばれる少なくとも1種の炎症性サイトカインにより刺激を加えたものである、請求項1に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 前記細胞外小胞が、ホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、請求1に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 前記ホスファチジルセリンに対する親和性を有する物質が、Timタンパク質である、請求項1に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 前記Timタンパク質が、Tim4タンパク質、Tim3タンパク質及びTim1タンパク質から選択されるものである、請求項5に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 前記細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものであり、且つホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、請求項1に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 前記細胞老化抑制又は生体組織修復促進が、細胞増殖促進作用、コラーゲンの産生促進若しくは分解抑制作用、ヒアルロン酸の産生促進若しくは分解抑制作用、及びエラスチンの産生促進若しくは分解抑制作用から選ばれる少なくとも1種の作用によるものである、請求項1に記載の細胞老化抑制剤又は生体組織修復促進剤。
- 炎症性サイトカインにより刺激を加えた間葉系幹細胞から細胞外小胞を得ること、又は/及び間葉系幹細胞由来の細胞外小胞からホスファチジルセリンに対して親和性を有する物質を用いる方法により細胞外小胞を得ることを含む、細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記間葉系幹細胞が、iPS細胞に由来するもの、或いは臍帯、臍帯血、骨髄、脂肪、筋肉、神経、皮膚、歯髄、羊膜及び胎盤からなる群より選択される1種以上の組織に由来するものである、請求項9に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記間葉系幹細胞が、腫瘍壊死因子α、インターロイキン1、インターロイキン6、インターロイキン8、インターロイキン12、インターロイキン18及びインターフェロンγから選ばれる少なくとも1種の炎症性サイトカインにより刺激を加えたものである、請求項9に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記細胞外小胞が、ホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、請求項9に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記ホスファチジルセリンに対する親和性を有する物質が、Timタンパク質である、請求項9に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記Timタンパク質が、Tim4タンパク質、Tim3タンパク質及びTim1タンパク質から選択されるものである、請求項13に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものであり、且つホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものである、請求項9に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 前記細胞老化抑制作用又は生体組織修復促進作用が、細胞増殖促進作用、コラーゲンの産生促進若しくは分解抑制作用、ヒアルロン酸の産生促進若しくは分解抑制作用、及びエラスチンの産生促進若しくは分解抑制作用から選ばれる少なくとも1種の作用によるものである、請求項9に記載の細胞老化抑制作用又は生体組織修復促進作用を有する細胞外小胞の製造方法。
- 間葉系幹細胞に由来する細胞外小胞を有効成分とする、遺伝子発現調節剤であって、
細胞外小胞が、炎症性サイトカインにより刺激を加えた間葉系幹細胞に由来するものである、又は/及び細胞外小胞がホスファチジルセリンに対して親和性を有する物質を利用する方法により得られるものであり、且つ
遺伝子が、細胞増殖抑制遺伝子、コラーゲン遺伝子、コラーゲン分解酵素遺伝子、ヒアルロン酸合成酵素遺伝子、ヒアルロン酸分解酵素遺伝子、エラスチン遺伝子、及びエラスチン分解酵素遺伝子から選ばれる少なくとも1種の遺伝子である、遺伝子発現調節剤。 - 請求項1~請求項8のいずれか1項に記載の細胞老化抑制剤又は生体組織修復促進剤を含有する細胞老化抑制用又は生体組織修復促進用皮膚外用組成物。
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JP7433685B1 (ja) | 2023-06-09 | 2024-02-20 | 日生バイオ株式会社 | 真皮線維芽細胞の機能賦活用剤及びそれを含んでなる化粧品 |
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Cited By (2)
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JP7371975B1 (ja) | 2022-09-27 | 2023-10-31 | セルソース株式会社 | 細胞外小胞の製造方法及び細胞外小胞含有組成物 |
JP7433685B1 (ja) | 2023-06-09 | 2024-02-20 | 日生バイオ株式会社 | 真皮線維芽細胞の機能賦活用剤及びそれを含んでなる化粧品 |
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