EP2863937A1 - Modification des effets immunomodulateurs des cellules - Google Patents
Modification des effets immunomodulateurs des cellulesInfo
- Publication number
- EP2863937A1 EP2863937A1 EP13759010.5A EP13759010A EP2863937A1 EP 2863937 A1 EP2863937 A1 EP 2863937A1 EP 13759010 A EP13759010 A EP 13759010A EP 2863937 A1 EP2863937 A1 EP 2863937A1
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- EP
- European Patent Office
- Prior art keywords
- cell
- periostin
- expression
- cells
- supernatant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Definitions
- the present invention relates to the fields of cellular immunotherapy, and more particularly to the use of mammalian cells having an immunomodulatory potential and which have been genetically or pharmacologically modified as an immunosuppressive or immunostimulatory drug.
- the present invention also relates to novel molecules having an immunosuppressive or immunostimulatory effect.
- Cell therapy involves injecting a subject with autologous or allogeneic living cells for the purpose of treating or preventing disease or reconstructing damaged tissue.
- These cells may be stem cells, progenitor or precursor cells, or differentiated functional cells from blood or tissue.
- These cells can also be genetically transformed to express in a tissue a transgene of therapeutic interest.
- the genetic modification of these cells can improve their survival, their metabolic characteristics, their proliferative abilities or, for stem cells or precursors, their differentiating abilities. These same objectives can be obtained by preconditioning these cells using pharmacological tools.
- Embryonic stem cells that come from an early stage embryo (from zygote to blastomer). These cells are totipotent, that is, they are capable of differentiating into any tissue of the organism, and are capable of self-renewal;
- adult stem cells that are present in most tissues of the body. These cells are either pluripotent, that is, they are capable of forming all cell types except embryonic appendages, such as induced pluripotent stem cells or "Multilineage-differentiating Stress Enduring Cells"; multipotent, that is, they are capable of forming different types of cells of a given cell lineage; either unipotent, that is to say that they can form only one cell type.
- Progenitor and precursor cells are derived from stem cells, that is, they are more involved in a differentiation pathway than cells. strains. They are also capable of forming one or more cell types but are not able to self-renew.
- MSCs Mesenchymal stem cells
- BM-MSC bone marrow mononuclear cells
- BM-MSC bone marrow mononuclear cells
- MSCs have phenotypic characteristics, for example CD45 ⁇ , CD34 + / ⁇ (depending on the tissue origin and their stage of proliferation), CD13 + , which distinguish them from hematopoietic stem cells which are CD45 + , CD34 + , CD13 ". They have, as inductors used, a potential of osteogenic differentiation, adipogenic, chondrogenic, myogenic and angiogenic example.
- ASC adipose derived stem / stroma cells
- ADAS adipose tissue-derived adult stem cells
- AD-MSC adipose-derived MSC
- ASCs are then isolated and purified after proteolytic digestion of white adipose tissue (eg, with collagenase) and selection by a step of adhesion on a plastic support (see for review Gimble et al, 2007) or can be directly selected from their surface phenotype (for example, selection of CD45 " , CD34 + and CD31 " cells).
- white adipose tissue eg, with collagenase
- selection by a step of adhesion on a plastic support see for review Gimble et al, 2007
- CD45 CD45
- CD34 + and CD31 CD31
- ASC show many common features with bone marrow mesenchymal stem cells, including paracrine activity and immunomodulatory properties (Planat-Bénard et al, 2004, Puissant et al, 2005, Yanez et al, 2006, Gonzalez et al, 2009a and 2009b, Constantin et al, 2009 and Yoo et al, 2009).
- mesenchymal stromal cells should be used to describe them (Casteilla et al, 2011). Nevertheless, these cells can serve as a cellular model for all mesenchymal stem cells. ASCs are currently being studied clinically in several types of applications (see Casteilla et al, 2011 for review), including critical ischemia of the lower limb and treatment of fistulas with and without Crohn's disease (Garcia-Olmo et al., 2009).
- Periostin is an adhesion protein of the extracellular matrix, secreted in particular by osteoblasts and expressed preferentially in the periosteum of the bones and the peridontal ligament of the teeth (see for review Kudo, 2011 and Frangogianni, 2012), Periostin is also expressed in other tissues, such as the heart, mammary glands, mesenchymal stromal cells derived from bone marrow (Couru et al, 2008) and some cancer cells.
- Periostin contains, from its N-terminal end towards its C-terminal end: a secretory signal sequence, a cysteine-rich domain (EMI domain), 4 homologous repeat regions (Fasciclin I domains (FAS1)) and a hydrophobic domain.
- the FAS1 domains of proteins are well known to those skilled in the art; they are referenced, for example, in the EMBL-EBI database under the access number IPR000782 or in the PFAM database under the access number PF02469.
- the FAS1 domains of periostin have been described by Coutu et al, 2008. Periostin maintains the structure and integrity of supporting tissues (collagen) and participates in bone growth. udo et al. (2004) have shown in zebrafish that inhibition of periostin mRNA translation by an antisense morpholino oligonucleotide inhibits the formation of myoseptum in the embryo. Rios et al.
- periostin-expressing knock-in transgenic mice are necessary for maintenance of peridontal ligament integrity in response to mechanical stress.
- Takayama et al. (2006) showed that periostin expression is induced by cytokines TGF- ⁇ and / or IL-4 and IL-13 expressed in response to inflammation or mechanical stress.
- increased periostin expression in tissue repair or remodeling processes and fibrosis may be due to local activation of TGF- ⁇ and the bone morphogenetic protein (BMP) signaling pathway. (see for review Frangogianni, 2012).
- BMP bone morphogenetic protein
- periostin can be used as a medicament for the regeneration of pancreatic tissue.
- the inventors have set themselves the goal of modifying the immunomodulatory potential of cells having an immunomodulatory potential, and more particularly mesenchymal stem / stromal cells.
- the inventors have then shown that the inhibition of the expression of periostin in mesenchymal stromal cells derived from human adipose tissue (AUC), which are not genetically transformed, makes it possible to increase the immunosuppressive potential of these cells.
- AUC human adipose tissue
- ASC non-genetically transformed human adipose tissue derived mesenchymal stromal cells
- periostin in controlling the paracrine activity of cells possessing an immunomodulatory potential, especially stem cells. mesenchymal stromal. These results also show that periostin can be used as an immunostimulatory drug and that a periostin inhibitor can be used as an immunosuppressive drug.
- the subject of the present invention is an isolated diploid cell having an immunomodulatory potential, wherein the expression and / or activity of periostin is modulated, or the culture supernatant of said cell, for use as a medicament.
- said drug is an immunosuppressive drug or an immunostimulatory drug.
- cell having an immunomodulatory potential is meant a cell which makes it possible to decrease or increase the natural capacities of the immune system in an organism, that is to say to reduce (immunosuppressions) the natural immune defenses when they may be harmful to said body. organism, or on the contrary to strengthen them (immunostimulation) when they are insufficient or depressed.
- This cell is characterized by its ability to act on the effectors of immunity.
- the determination of the immunomodulatory potential of a cell can be carried out by those skilled in the art using well-known techniques, such as immunophenotyping and more particularly and by way of example for the lymphocytes.
- MLR mixed lymphocyte reaction
- mesenchymal stromal cells see Perico et al, 2011; for dendritic cells, see Zhao et al, 2012; for NK cells, see Abdelrazik et al, 2011; for lymphocytes, see Perico et al, 2011, Najar et al, 2010, Zhou et al, 2011 and Kronsteiner et al, 2011.
- Said cell having an immunomodulatory potential (before modulation of expression and / or activity of the periostin) expresses periostin.
- said cell having an immunomodulatory potential also expresses at least one immunomodulatory molecule, such as IFN- ⁇ , IDO-1, TSG-6, HLA-G, PGE2, TGF- ⁇ , galectin, HO-1, IL-6 , IL-1RA, IL-33, AIRE ("autoimmune regulator"), hEGF, TNF, GM-CSF and / or JAG1, well known to those skilled in the art, preferably IFN- ⁇ , IDO-1, TSG-1, 6, HLA-G and IL-1RA.
- immunomodulatory molecule such as IFN- ⁇ , IDO-1, TSG-6, HLA-G, PGE2, TGF- ⁇ , galectin, HO-1, IL-6 , IL-1RA, IL-33, AIRE ("autoimmune regulator"), hEGF, TNF, GM-CSF and / or JAG1, well known to those skilled in the art, preferably IFN- ⁇ , IDO-1, TSG-1, 6, HLA-G and IL-1RA.
- said cell having an immunomodulatory potential is chosen from a mesenchymal stromal cell, a progenitor cell, a precursor cell, a cell differentiated from a mesenchymal stromal cell, a macrophage, a monocyte, a mastocyte or a myeloid cell. , a fibroblast, a dendritic cell, a lymphocyte (for example a Treg lymphocyte), an NK cell, a lymphoid cell and a myoblast.
- said mesenchymal stromal cell is selected from mesenchymal stromal cells derived from bone marrow (BM-MSC), adipose tissue (ASC or AD-MSC), solid tissue, placenta, adult blood or cord blood.
- BM-MSC bone marrow
- ASC adipose tissue
- AD-MSC adipose tissue
- said cell having an immunomodulatory potential is a mammalian cell, more preferably a human cell.
- said cell having an immunomodulatory potential is a living cell.
- said cell having an immunomodulatory potential is not a cancer cell.
- modulate the expression and / or the activity of the periostin is by total or partial inhibition of the expression and / or activity of said periostin, including by inhibition of its signaling pathways, either by increasing the expression and / or the activity of said periostin (overexpression of said periostin or stimulation of the signaling pathways of said periostin).
- Determination of the immunosuppressive potential (or immunosuppressive properties) or immunostimulatory potential (or immunostimulatory properties) of a cell according to the present invention can be achieved by measuring the expression of mRNAs of genes involved in immunomodulation, such as genes encoding IFN- ⁇ , IDO-1, TSG-6, HLA-G, PGE2, TGF- ⁇ , galectin, HO-1, IL-6, IL-IRA, IL-33, AIRE, hEGF, TNF , GM-CSF and / or JAG1, or by measuring the content of these proteins in this cell.
- genes involved in immunomodulation such as genes encoding IFN- ⁇ , IDO-1, TSG-6, HLA-G, PGE2, TGF- ⁇ , galectin, HO-1, IL-6, IL-IRA, IL-33, AIRE, hEGF, TNF , GM-CSF and / or JAG1, or by measuring the content of these proteins in this cell.
- said isolated cell having an immunomodulatory potential in which the expression and / or the activity of periostin is totally or partially inhibited, or the culture supernatant of this cell, is useful.
- an immunosuppressive drug for the regeneration (reconstruction) of a tissue, organ transplant (to limit rejections), such as renal transplantation, or in the treatment of:
- GVHD graft-versus-host disease
- inflammatory bowel diseases such as Crohn's disease, celiac disease and irritable bowel syndrome
- chronic inflammatory rheumatism such as arthritis, rheumatoid arthritis, ankylosing spondylitis and psoriatic arthritis
- chronic inflammatory diseases of the central nervous system such as multiple sclerosis and amyotrophic lateral sclerosis;
- inflammatory scars such as hypertrophic scars
- autoimmune diseases such as autoimmune encephalitis, autoimmune colitis and systemic lupus erythematosus;
- microbial infections for example due to a bacterium, a protozoan parasite or a virus.
- said isolated cell in which the expression and / or activity of periostin, including its signaling pathways, is increased, or the culture supernatant of this cell, is useful as an immunostimulatory drug for vaccination, i.e. a vaccine adjuvant or for treatment:
- Periostin is well known to those skilled in the art.
- the amino acid sequences of the four isoforms of human periostin are available in the GANBANK database under accession numbers GL209863034 (NP_001129408.1; isoform 1), GI: 209862911 (NP_001129406.1; isoform 2), GL209863011 (NP_001 129407.1; isoform 3) and GL209863034 (NP_001129408.1; isoform 4).
- peripherally means these four isoforms and their functional variants (or mutants).
- periostin The function of a variant (or mutant) of periostin can be determined according to methods known to those skilled in the art (see for review Kudo et al, 2011).
- Total or partial inhibition of the expression and / or activity of periostin can be obtained in various ways, by methods known per se.
- This inhibition can be obtained by intervening upstream of the production of periostin, by mutagenesis of the gene coding for this protein, or by inhibition or modification of the transcription or translation of periostin.
- Mutagenesis of the gene coding for periostin may occur at the level of the coding sequence or of the expression regulation sequences, in particular of the promoter. It is possible, for example, to delete all or part of said gene and / or to insert an exogenous sequence (see, for example, Rios et al, 2005).
- telomeres may be introduced, for example, by PCR using primers specific for said gene (see, for example, Rios et al, 2005).
- RNAs derived from the said periostin gene can be obtained by the expression of sense, antisense or double-stranded RNAs derived from the said periostin gene, or the cDNA of this protein, or else by the use of interfering RNAs.
- Cell genetic modification techniques are known to those skilled in the art. For example, Casteilla et al., 2008, describes a method of gene transfer into cells derived from adipose tissue using viral vectors.
- a recombinant DNA construct comprising one or more polynucleotides capable of inhibiting the expression of periostin.
- said polynucleotides can encode antisense RNAs, such as morpholino antisense oligonucleotides, hairpin RNAs, interfering RNAs (non-coding double-stranded RNAs with a length of approximately 21 to 25 ⁇ m). nucleotides), shRNAs, microRNAs (non-coding single-stranded RNAs of a length of about 21 to 25 nucleotides), aptamers, or ribozymes targeting a gene encoding periostin.
- antisense RNAs such as morpholino antisense oligonucleotides, hairpin RNAs, interfering RNAs (non-coding double-stranded RNAs with a length of approximately 21 to 25 ⁇ m). nucleotides), shRNAs, microRNAs (non-coding
- said polynucleotide capable of inhibiting the expression of periostin is an interfering RNA (RNAi or "siRNA").
- RNAi interfering RNA
- RNAi of sequence SEQ ID NO: 1 can be used.
- Blocking antibodies against periostin or periostin inhibitors may also be used. Such antibodies are described by Zhu et al, 2011 and Orecchia et al, 2011.
- the increase of the expression (ie, overexpression) and / or the activity of periostin in a cell having an immunomodulatory potential as defined above, can be carried out by modifying the genome of said cell, by stimulation. periostin signaling pathways in said cell or by the use of mediators inducing periostin expression.
- This modification of the genome can in particular be carried out by genetic transformation of said cell with one or more copies of a polynucleotide encoding said periostin, associated with cis regulatory sequences of its expression.
- the overexpression of said periostin may also be obtained by modifying the cis-regulatory sequences of the expression of said periostin, for example by replacing its endogenous promoter with a stronger promoter, allowing a higher level of transcription, or by adding to the endogenous promoter enhancer-type transcription enhancer sequences, or translation.
- an expression cassette comprising a polynucleotide encoding a periostin as defined above, placed under the transcriptional control of a suitable promoter.
- Said promoter may be a heterologous promoter.
- a constitutive promoter such as the CMV, ⁇ -actin, EF1- ⁇ , PGK and Ubiquitin C promoters, a specific promoter of a given tissue or a locally inducible promoter.
- Recombinant vectors can also be used, resulting from the insertion of an expression cassette as described above into a host vector.
- the expression cassettes and recombinant vectors as described above may, of course, also comprise other sequences, usually employed in this type of constructions.
- the choice of these other sequences will be made, in a conventional manner, by those skilled in the art based in particular on criteria such as the chosen host cells, the transformation protocols envisaged, etc.
- leader sequences transcription terminators and leader sequences
- These sequences may be those which are naturally associated with the gene encoding periostin as defined above, or may be heterologous sequences. These sequences do not interfere with the specific properties of the promoter or gene with which they are associated, but can improve overall qualitatively or quantitatively, the transcription and, where appropriate, the translation. It is also possible, in order to increase the level of expression, to use enhancer sequences (enhancer sequences) of transcription and translation.
- Stimulation of the periostin signaling pathway can be achieved by stimulating the TGF- ⁇ signaling pathway or the signaling pathway of the bone morphogenetic protein (BMP) in said immunomodulatory cell (see for review Frangogiannis, 2012).
- BMP bone morphogenetic protein
- mediators inducing the expression of periostin include angiotensin II, cytokines IL-4 and IL-13 (see for review Frangogiannis, 2012).
- the culture supernatant of an isolated cell having an immunomodulatory potential, in which the expression and / or the activity of periostin is modulated, as defined above, can be obtained by culturing said cell in a medium of appropriate culture, and recovery and filtration of the culture supernatant.
- the subject of the present invention is also a pharmaceutical composition
- a pharmaceutical composition comprising an isolated cell having an immunomodulatory potential in which the expression and / or the activity of periostin is modulated, or the culture supernatant of said cell, as defined above. and at least one pharmaceutically acceptable carrier.
- said pharmaceutically acceptable vehicle is suitable for cell therapy.
- the preparation of stromal cells for their uses in cell therapy is well known to those skilled in the art (Le Blanc et al, 2008, Constantin et al, 2009, Garcia-Olmo et al, 2009, Gonzalez et al, 2009a and 2009b and Karussis et al, 2010).
- the present invention also relates to the use of an isolated cell having an immunomodulatory potential in which the expression and / or the activity of periostin is modulated, or the culture supernatant of said cell, or a composition pharmaceutical, as defined above, for the manufacture of an immunosuppressive or immunostimulatory drug as defined above.
- the present invention also relates to a method for tissue regeneration, organ transplantation or to treat or prevent a disease as defined above, comprising administering to said subject a therapeutically effective amount of an isolated cell having an immunomodulatory potential in which the expression and / or activity of periostin is modulated, or the culture supernatant of said cell, or a pharmaceutical composition as defined above.
- the present invention also relates to the in vitro use of an isolated cell having an immunomodulatory potential in which the expression and / or the periostin activity is modulated, as defined above, to identify (or screen) a product modifying the effects of periostin in said cell.
- the present invention also relates to an in vitro model for carrying out pharmacological or toxicological tests, comprising an isolated cell having an immunomodulatory potential in which the expression and / or the activity of periostin is modulated, as defined above. to identify (or screen for) a product that modifies the effects of periostin in said cell.
- the present invention also relates to
- nucleic acid molecule comprising a sequence coding for said protein or
- a pharmaceutical composition comprising said protein or said nucleic acid molecule, and at least one pharmaceutically acceptable carrier, for use as an immunostimulatory drug for vaccination, i.e., a vaccine adjuvant or in the treatment of a immune deficiency, selective or combined immunoglobulin deficiency, isolated T-cell deficiency, purine nucleoside phosphorylase deficiency, severe combined immunodeficiency deficiency, and adenosine deaminase, or common hypogammaglobulinemia of variable expression.
- an immunostimulatory drug for vaccination i.e., a vaccine adjuvant or in the treatment of a immune deficiency, selective or combined immunoglobulin deficiency, isolated T-cell deficiency, purine nucleoside phosphorylase deficiency, severe combined immunodeficiency deficiency, and adenosine deaminase, or common hypogammaglobulinemia of variable expression.
- the invention encompasses natural, recombinant or synthetic periostin.
- recombinant periostin is meant periostin produced by genetic engineering, for example by cloning and gene amplification.
- periostin is meant periostin produced by enzymatic and / or chemical synthesis.
- Said periostin may be of human origin as described above, or of animal origin.
- the nucleic acid molecule encoding said protein is obtained by conventional methods, known in themselves to those skilled in the art, following the standard protocols (see for example International Application WO 2010/025555).
- the nucleic acid molecule may be in the form of a eukaryotic or prokaryotic recombinant vector comprising an insert consisting of a polynucleotide encoding periostin.
- vectors in which a polynucleotide of interest can be inserted in order to introduce and maintain it in a eukaryotic or prokaryotic host cell are known per se; the choice of an appropriate vector depends on the intended use for that vector (eg, expression of that sequence or integration into the chromosomal material of the host), as well as the nature of the host cell.
- viral or non-viral vectors such as plasmids may be used.
- said recombinant vector is an expression vector wherein said polynucleotide is under the control of appropriate transcriptional and translational regulatory elements.
- the subject of the present invention is also an inhibitor of periostin selected from the group consisting of an anti-periostin blocking antibody, an antisense RNA, a morpholino antisense oligonucleotide, a hairpin RNA, an interfering RNA (RNAi), an aptamer directed against periostin, or a pharmaceutical composition comprising said inhibitor and at least one pharmaceutically acceptable carrier, for use as an immunosuppressive drug for regeneration of tissue, organ transplant or treatment of a selected disease in the group consisting of graft-versus-host disease, inflammatory bowel disease, chronic inflammatory rheumatism, chronic inflammatory diseases of the central nervous system, lupus, autoimmune thyroiditis, complex anal fistulas , type IV hypersensitivity-type asthmatic reactions, scarring Inflammatory diseases, allergies, tissue necrosis, autoimmune diseases, ulcers, diabetes and microbial infections.
- periostin selected from the group consisting of an anti-periostin blocking antibody, an antisense RNA,
- anti-periostin antibodies The preparation of anti-periostin antibodies is known to those skilled in the art (see Application EP 2168599 A1).
- human anti-periostin blocking antibodies may have been those described by Orecchia et al, 2011 and Zhu et al, 2011.
- the sequence RNAi can be used
- a pharmaceutically acceptable vehicle acceptable there may be mentioned dispersants, solubilizers, stabilizers, preservatives, etc.
- Pharmaceutically acceptable vehicles that can be used in formulations include methylcellulose, hydroxymethylcellulose, carboxymethylcellulose, cyclodextrins, polysorbate 80, mannitol, gelatin, lactose, oils and the like. vegetable or animal, acacia, etc.
- Said drug or said pharmaceutical composition may be in the form of a physiological saline solution, isotonic and buffered, compatible with a pharmaceutical use and known to those skilled in the art.
- the amount of said protein or said periostin inhibitor used as a medicament according to the invention or present in the pharmaceutical composition according to the invention may be modulated so as to obtain a circulating level of active principle (in a physiological liquid such as blood) necessary to achieve the desired therapeutic effect for a particular subject.
- the amount chosen will depend on multiple factors, in particular the route of administration, the duration of administration, the timing of administration, the rate of elimination of the compound, the or various products used in combination with said drug or said pharmaceutical composition, the age, weight and physical condition of the patient, as well as its medical history, and any other information known in medicine.
- the drug or pharmaceutical composition according to the present invention may be used alone or in combination with at least one other therapeutically active compound, such as for example an antigen or a second immunostimulatory or immunosuppressive compound according to the desired use of the drug.
- the use of said drug or said pharmaceutical composition, and said therapeutically active compound may be simultaneous, separate or spread over time.
- the present invention also relates to a method for treating or preventing, in a subject, a cancer or an infection related to an immunodeficiency, a selective or combined deficiency in immunoglobulins, a deficiency isolated T cells, purine nucleoside phosphorylase deficiency, severe combined immunodeficiency deficiency of adenosine deaminase or common variable expression hypogammaglobulinemia, comprising administering to said subject a therapeutically effective amount of said composition pharmaceutical composition comprising said protein (periostin or a protein comprising 1, 2, 3 or 4 FAS1 domains of the periostin) or a nucleic acid molecule comprising a sequence coding for said protein, as defined above.
- the present invention also relates to a method of regenerating a tissue, transplanting an organ or treating or preventing a disease selected from the group consisting of graft versus host disease, inflammatory diseases bowel diseases, chronic inflammatory rheumatism, chronic inflammatory diseases of the central nervous system, lupus, autoimmune thyroiditis, complex anal fistulas, type IV delayed-type hypersensitivity reactions, inflammatory scars, allergies, tissue necrosis, autoimmune diseases, ulcers, diabetes and microbial infections, in a subject comprising administering to said subject a therapeutically effective amount of said pharmaceutical composition comprising an anti-periostin blocking antibody, an antisense RNA, a morpholino antisense oligonucleotide, a hairpin RNA, an interfering RNA rent (RNAi), an aptamer directed against periostin, as defined above
- the invention includes other arrangements, which will become apparent from the following description, which refers to examples showing in vitro the effect of the modulation of the expression of periostin in stromal cells.
- Figure 1 shows the effect of MRA against POSTN (siRNA POSTN) and non-specific control RNAi (siRNA scramble) on the amount of mRNA encoding PUM1 (used as a control) in treated ASCs.
- POSTN siRNA POSTN
- siRNA scramble non-specific control RNAi
- FIG. 2 represents the effect of RNAi directed against POSTN (siRNA POSTN) and non-specific control RNAi (siRNA scramble) on the amount of mRNA encoding periostin in treated ASCs.
- A The mean ⁇ standard deviation to the mean (sem) is shown after normalizing the values on the graph.
- FIG. 3 represents the in vitro effect of the treatment of AUCs with TLR3 Poly (I: C) ligand alone or in combination with periostin (POSTN) at a dose of 1, 2, 4, or 10 ⁇ ⁇ ⁇ , on expression of POSTN (A) and IDO1 (B) mRNA.
- TLR3 Poly I: C
- Figure 4 shows the IDO-1 assay in the culture supernatant of ASC treated with RNAi directed against POSTN (siRNA POSTN) or non-specific control RNAi (siRNA scramble).
- Figure 5 shows the effect of RNAi directed against POSTN (siRNA POSTN) and non-specific control RNAi (siRNA scramble) on the amount of mRNA coding for POSTN, IDO1 (IDO) and IFN- ⁇ (IFNB ) in the processed BM-MSCs.
- POSTN POSTN
- siRNA scramble non-specific control RNAi
- FIG. 6 represents (A) the in vitro effect of treatment of AUCs with IFN ⁇ (A) at a dose of 4, 20, 100 or 500 IU / ml on the expression of POSTN and (B) mRNA. ) the in vitro effect of treating AUCs with IFNy at a dose of 100 IU / ml in combination with periostin (POSTN) at a dose of 1, 2, 4, or 10 ⁇ g / ml, on the expression IDOl mRNA.
- POSTN periostin
- EXAMPLE 1 IN VITRO EFFECT OF INHIBITION OF EXPRESSION OF PERIOSTIN IN MESENCHYMAL STROMAL CELLS DERIVED FROM ADIPOSE TISSUE (ASC)
- ASC adipose tissue
- the FCS cells were plated at a density of 4000 cells / cm 2 in the CPM medium. After 12h of culture at 37 ° C and 5% of C0 2 , the non-adherent cells were removed by washing with PBS (phosphate-buffered saline). Fraction adherent was then cultured in vitro in the same culture medium CPM; the medium being renewed three times a week. After 8 days of culture, the ASCs (passage 0) were harvested with trypsin-EDTA (LifeTechnologies). The number of viable cells was determined by excluding the blue Trypan on a Countess® automaton. The cells were then plated at a density of 2000 cells / cm 2 and cultured for an additional 2 days (passage 1). Treatment with RNAi (siRNA) was then performed.
- siRNA RNAi
- BM-MSC bone marrow
- Human nucleated bone marrow cells were first seeded at 5 ⁇ 10 4 cells / cm 2 in a culture medium consisting of minimal essential medium alpha (aMEM) supplemented with 10% fetal calf serum (FCS; Hyclone), 1 ng / ml of fibroblastic growth factor 2 (FGF2, R & D System, Lille, France), and 10 ⁇ / ⁇ of ciprofloxacin. All the medium was renewed twice a week until the cells reached confluence (end of P0). Then the cells were detached with trypsin. Viable cells were numbered and reseeded at 500 cells / cm 2 (PI passage).
- aMEM minimal essential medium alpha
- FCS fetal calf serum
- FGF2 fibroblastic growth factor 2
- FGF2 fibroblastic growth factor 2
- RNAi directed against periostin was provided by SIGMA (MISSION esiRNA Human POSTN, EHU069741). This RNAi is directed against the 4 isforms of human periostin.
- Non-specific AF488 RNAi was provided by QIAGEN (siRNA AllStarNeg AF488).
- the culture medium of the ASC or BM-MSC was replaced by the culture medium for the treatment with RNAi, prepared as described below.
- RNA extraction 2 ⁇ of 28 ⁇ RNAi were diluted in 100 ⁇ of ⁇ - ⁇ OK medium, vortexed for 10 seconds and then mixed with 12 ⁇ l of HiPerfect reagent (QIAGEN). After vortexing again, the suspension obtained was left for 10 minutes at room temperature before being mixed with 2 ml of CPM medium. The ASC cells were then added to this medium. The cells were then cultured for 4 days in this medium at 37 ° C. and 5% CO 2 . RNA extraction
- RNA extraction was performed according to the manufacturer's instructions (RNeasy mimkit, QIAGEN). The RNAs were quantified using the Nanodrop (ThermoScientific) controller and 1 ⁇ g of RNA was retro-transcribed using the SuperScript One Step RT kit according to the manufacturer's recommendations (LifeTechnologies).
- RT-qPCR Quantitative RT-PCR
- RNAs used for the quantification of RNAs are as follows:
- Pumillo-1 (PUM1) is used as a reference gene. Statistical analyzes
- Quantitative RT-PCR results are expressed as mean values ⁇ standard deviation at mean (wk). Significance analysis was performed using the Mann & Whitney test or Student's t test (Prism Software). (* P ⁇ 0.05, ** P ⁇ 0.01).
- IDO-1 indoleamine 2,3-dioxygenase 1
- IDO-1 indoleamine 2,3-dioxygenase 1
- the activity of IDO-1 was determined by high performance liquid chromatography by measuring the concentration of kynurenin in the culture supernatant of the MRS treated with MRA against POSTN or nonspecific RNAi, and using 3-nitro-L-tyrosine as an internal standard. Kynurenine and 3-nitro-L-tyrosine were detected by UV absorption at 360 nm.
- Non-specific MRA can therefore be used as RNAi control.
- the amount of mRNA encoding periostin was then determined by RT-qPCR after treatment of AUCs with either MRA against POSTN or non-specific MRA. The results are shown in Figure 2. These results show that the treatment of ASC with MRA against POSTN is effective in inhibiting the expression of POSTN in these cells.
- the amount of mRNA encoding different immunosuppressive proteins was then determined by RT-qPCR after treatment of AUCs with the AR against POSTN or non-specific MRA. The results are shown in Table 2 below.
- RNAi non-specific RNAi POSTN Effect of MRA against POSTN and non-specific control PARNi on the amount of mRNA encoding periostin (POSTN) and different immunosuppressive proteins in the treated ASCs. The means ⁇ standard deviation after normalization of the measured values are shown.
- RNAi non-specific RNAi POSTN Effect of MRA against POSTN and non-specific control PARNi on the amount of mRNA encoding periostin (POSTN) and different immunosuppressive proteins in the treated ASCs. The means ⁇ standard deviation after normalization of the measured values are shown.
- HLA-G 1.00 0.00 3.70 1.64
- AUCs have similar characteristics to other mesenchymal stem / stromal cells, and to progenitor cells, precursor cells, differentiated cells from mesenchymal stromal cells, macrophages, monocytes, mast cells, myeloid cells, fibroblasts, dendritic cells , lymphocytes (eg Treg cells), cellules cells, lymphoid cells and myoblasts, it is likely that periostin also plays a role in modulating the immunosuppressive properties of these cells.
- BM-MSC bone marrow mesenchymal stromal cells
- IDO indoleamine-2,3-dioxygenase
- EXAMPLE 2 IN VITRO EFFECT OF THE ADDITION OF PERIOSTIN IN ASCES TREATED WITH LIGANG TLR3
- mesenchymal stromal cells derived from human adipose tissue was performed as previously described in Example 1-1 above, except that the SVF cells were plated at a density of 2000. cells / cm 2 and cultured for an additional 5 days (passage 1) with a change of culture medium after 2 days.
- the medium used for the treatment is the CPM medium supplemented with Poly (I: C) at a concentration of 500 ⁇ g / ml and / or periostin (POSTN) at a concentration of 1, 2, 4 or 10 ⁇ g ml.
- AUC adipose tissue
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| Application Number | Priority Date | Filing Date | Title |
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| FR1255957A FR2992221A1 (fr) | 2012-06-22 | 2012-06-22 | Modification des effets immunomodulateurs des cellules |
| PCT/IB2013/055111 WO2013190516A1 (fr) | 2012-06-22 | 2013-06-21 | Modification des effets immunomodulateurs des cellules |
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| EP (1) | EP2863937A1 (fr) |
| JP (1) | JP2015521476A (fr) |
| CA (1) | CA2886289A1 (fr) |
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| CN113648417A (zh) * | 2021-03-15 | 2021-11-16 | 中国人民解放军军事科学院军事医学研究院 | Postn作为调控间充质干细胞分化能力的标志物及其应用 |
| CN119414030B (zh) * | 2025-01-06 | 2025-04-15 | 天津市肿瘤医院空港医院 | POSTN蛋白在制备Treg细胞失调性疾病诊疗产品中的应用 |
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| WO2007077934A1 (fr) * | 2005-12-28 | 2007-07-12 | Asubio Pharma Co., Ltd. | Anticorps anti-periostine et composition pharmaceutique pour prevenir ou traiter une maladie liee a la periostine contenant cet anticorps |
| US8017119B2 (en) * | 2005-12-28 | 2011-09-13 | Daiichi Sankyo Company, Ltd. | Antibody against periostin, and a pharmaceutical composition comprising it for preventing or treating a disease in which periostin is involved |
| KR101560843B1 (ko) | 2007-06-27 | 2015-10-15 | 고꾸리쯔 다이가꾸 호우징 오사까 다이가꾸 | 페리오스틴의 Exon-17 부위에 의해 코드되는 펩티드에 대한 항체를 함유하는 암 치료제 |
| US20110104166A1 (en) * | 2008-01-18 | 2011-05-05 | Stankovic Konstantina M | Methods and Compositions for Treating Polyps |
| EP2329025A4 (fr) | 2008-09-08 | 2012-04-25 | Ottawa Hospital Res Inst | Régénération pancréatique induite par la périostine |
| US20100291188A1 (en) * | 2008-12-04 | 2010-11-18 | Musc Foundation For Research Development | Periostin Inhibitory Compositions for Myocardial Regeneration, Methods of Delivery, and Methods of Using Same |
| GB2483622A (en) * | 2009-08-03 | 2012-03-21 | Univ Durham | Fibroblast feeder cells |
| US20120071407A1 (en) * | 2010-06-18 | 2012-03-22 | Douglas Hamilton | Method of treating wounds |
| US9028810B2 (en) * | 2010-12-20 | 2015-05-12 | Ajou University Industry—Academic Cooperations Foundatin | Composition for inducing migration of neural stem cells containing periostin as effective ingredient |
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- 2013-06-21 WO PCT/IB2013/055111 patent/WO2013190516A1/fr not_active Ceased
- 2013-06-21 EP EP13759010.5A patent/EP2863937A1/fr not_active Withdrawn
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