WO1999055864A1 - Nouveau polypeptide, adnc le codant et son utilisation - Google Patents
Nouveau polypeptide, adnc le codant et son utilisation Download PDFInfo
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- WO1999055864A1 WO1999055864A1 PCT/JP1999/002284 JP9902284W WO9955864A1 WO 1999055864 A1 WO1999055864 A1 WO 1999055864A1 JP 9902284 W JP9902284 W JP 9902284W WO 9955864 A1 WO9955864 A1 WO 9955864A1
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- polypeptide
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
- C07K14/4701—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals not used
- C07K14/4702—Regulators; Modulating activity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to novel polypeptides, cDNAs encoding the polypeptides, and uses thereof.
- cardiovascular disease is an area of great interest because cardiovascular disease is the cause of death.
- Studies in the cardiovascular area have revealed important facts about arterial intimal remodeling and arterial remodeling, both of which are thought to contribute to plaque formation and stenosis in arteriosclerosis.
- the three components that make up the disease of the arterial wall are: a) proliferation of smooth muscle cells, macrophages and lymphocytes, b) formation of connective tissue, c) accumulation of fat and cholesterol in the newly formed connective tissue matrix, It is.
- the present inventors have made intensive efforts for the purpose of isolating a molecule relating to a portion constituted by smooth muscle in angiogenesis and using it for controlling the proliferation of abnormal smooth muscle cells as described above.
- the target biological activity is confirmed in a tissue or cell culture solution, and then the polypeptide is isolated and purified to purify the gene.
- a method of cloning or a method of expression cloning of a gene using its biological activity as an index has been generally used.
- bioactive polypeptides in vivo often have a variety of biological activities, and as a result of cloning a gene using a certain activity as an index, it is identical to a known polypeptide. Increasingly, there are cases where certain things become clear later. In addition, many factors are produced only in minute amounts or are expressed only under special physiological conditions, making isolation, purification, and confirmation of biological activity difficult.
- the present inventors focus on novel factors (polypeptides) that are useful in the treatment, diagnosis, or research of diseases related to abnormal proliferation of smooth muscle cells, and find them by focusing on secretory proteins and membrane proteins having secretory signals. To this end, we worked diligently.
- the present inventors have so far studied the cloning of genes for growth / differentiation factors that work in the hematopoietic and immune systems. And growth differentiation factors (eg, various cytokines) ) And membrane proteins such as their receptors (hereinafter collectively referred to as secreted proteins, etc.) have a sequence called signal peptide at the N-terminus.
- yeast SST method a method for isolating a gene encoding a sidanal peptide more efficiently and easily using yeast (yeast SST method) has also been developed (see US Pat. No. 5,536,637).
- the cDNA sequence provided by the present invention was designated as mouse A55 clone, and was isolated from a cDNA library prepared from mouse fetal heart tissue based on the information obtained using the yeast SST method. .
- the mouse A55 clone is a full-length cDNA that contains the complete cDNA sequence encoding the secreted protein (here represented as the mouse A55 protein).
- the cDN A sequence provided by the present invention is named human A55 clone, and is based on the information obtained from human kidney tissue using the yeast SST method, based on a cDN A library prepared from human brain tissue. Was found.
- the human A55 clone is a full-length CDNA containing the complete cDNA sequence encoding a secreted protein (represented herein as the human A55 protein).
- the present inventors have confirmed that the polypeptide has an effect of suppressing proliferation of vascular smooth muscle cells. Therefore, the polypeptide is considered to be useful for treating diseases related to abnormal smooth muscle proliferation, such as intimal thickening and fibroids that cause restenosis after arteriosclerosis and percutaneous coronary angioplasty (PTCA).
- diseases related to abnormal smooth muscle proliferation such as intimal thickening and fibroids that cause restenosis after arteriosclerosis and percutaneous coronary angioplasty (PTCA).
- PTCA percutaneous coronary angioplasty
- polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 1, 4, 6, 9, 11, or 14,
- a cDNA comprising the nucleotide sequence of SEQ ID NO: 2, 5, 7, 10, 12, or 15;
- FIG. 1 shows how mouse A55 protein inhibits PDGF-stimulated proliferation of rat aortic vascular smooth muscle cells.
- FIG. 2 shows how human A55 protein inhibits PDGF-stimulated proliferation of rat aortic vascular smooth muscle cells.
- the present invention relates to SEQ ID NOs: 1, 4, 6, 9, 11 or 1 in substantially pure form.
- the present invention relates to a polypeptide comprising the amino acid sequence represented by No. 14, a homolog thereof, a fragment of the sequence thereof, and a homolog thereof.
- the present invention further relates to cDNAs encoding those polypeptides. More specifically, a cDNA consisting of the nucleotide sequence represented by SEQ ID NO: 2, 5, 7, 10, 12, or 15 and the nucleotide sequence represented by SEQ ID NO: 2, 5, 7, 10, 12, 12 or 15 are selected. CDNA having fragments that hybridize specifically.
- the hybridizing cDNA includes the complementary sequence of the above sequence. Hybridization is preferably performed under stringent conditions.
- a polypeptide consisting of the amino acid sequence shown in SEQ ID NO: 1, 4, 6, 9, 11, or 14 in a substantially pure form is generally 90% or more of the polypeptide at the time of production, for example, It means that 95, 98 or 99% is a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 1, 4, 6, 9, 11 or 14.
- a homolog of a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 1, 4, 6, 9, 11, or 14 generally means at least 20, preferably at least 30, for example, 40, 60 or 100 It is at least 70%, preferably at least 80 or 90%, more preferably more than 95%, homologous in contiguous amino acid regions, and such homologs are hereinafter referred to as polypeptides of the present invention. .
- a fragment of a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 1, 4, 6, 9, 11, or 14 or a homologous fragment thereof is at least 10 amino acids, preferably at least 15 amino acids. Means, for example, 20, 25, 30, 40, 50 or 60 amino acid moieties.
- Consists of the nucleotide sequence of SEQ ID NO: 2, 5, 7, 10, 12, or 15 A cDNA that selectively hybridizes to a cDNA is generally at least 20, preferably at least 30, for example, 40, 60 or 100 contiguous nucleotide regions, at least 70%, preferably at least 80 or 90 %, More preferably 95% or more homology, and such cDNA is hereinafter referred to as cDNA of the present invention.
- a cDNA fragment consisting of the nucleotide sequence represented by SEQ ID NO: 2, 5, 7, 10, 12 or 15 means at least 10 bases, preferably at least 15 bases, for example, a 20, 25, 30 or 40 base portion, Such a fragment is also included in the cDNA of the present invention.
- the present invention includes a replication or expression vector comprising the cDNA of the present invention.
- the vector include a plasmid, virus or phage vector comprising an ori region and, if necessary, a promoter for expression of the above cDNA, a promoter and a control element for the promoter, and the like.
- the vector may contain one or more selectable marker genes, for example, an ampicillin resistance gene.
- the vector can be used in vitro, for example, for the production of RNA corresponding to cDNA and the transformation of host cells.
- the present invention includes the nucleotide sequence represented by SEQ ID NO: 2, 3, 5, 7, 8, 10, 12, 13, or 15, or a cDNA comprising the open reading frame thereof. Also included are host cells transformed with the vector for replicating or expressing the cDNA. Cells include, for example, bacteria, yeast, insect cells or mammalian cells.
- the present invention includes a method for producing the polypeptide of the present invention, which comprises culturing the host cell of the present invention under conditions for expressing the polypeptide of the present invention.
- the cultivation is preferably carried out under conditions under which the polypeptide of the present invention is expressed and produced from host cells.
- Antisense RNA can also be produced by inserting the cDNA of the present invention into the antisense region of a vector as described above. Such antisense RNA can also be used to control the level of the polypeptide of the present invention in cells.
- the present invention also includes monoclonal or polyclonal antibodies of the polypeptides of the present invention. Furthermore, the present invention includes a method for producing a monoclonal or polyclonal antibody of the polypeptide of the present invention. Monoclonal antibodies can be produced by ordinary hybridoma technology using the peptide of the present invention or a fragment thereof as an antigen. A polyclonal antibody can be produced by a usual method of inoculating a host animal (for example, a rat or a heron) with the polypeptide of the present invention and collecting an immune serum.
- a host animal for example, a rat or a heron
- the present invention also includes a pharmaceutical composition comprising the polypeptide of the present invention, an antibody thereof, a pharmaceutically acceptable excipient, and Z or a carrier.
- polypeptide of the present invention of (1) in addition to the polypeptide consisting of the amino acid sequence shown in SEQ ID NO: 1, 4, 6, 9, 11, or 14, a polypeptide in which a part thereof is deleted (for example, In SEQ ID NO: 1, a polypeptide comprising only a part essential for the expression of biological activity, etc.), a part of which is substituted with another amino acid (for example, one substituted with an amino acid having similar physical properties), and the present invention.
- the polypeptides of the present invention include those in which other amino acids are added or inserted.
- nucleotide sequence of cDNA can be changed without changing the amino acid sequence of the polypeptide.
- the cDNA of the present invention specified by (2) includes all nucleotide sequences encoding the polypeptide represented by SEQ ID NO: 1, 4, 6, 9, 11, or 14 of (1). It is. Changing the nucleotide sequence improves the productivity of polypeptide May be up.
- the cDNA specified in (3) is an embodiment of the cDNA specified in (2) and represents a natural sequence.
- the cDNA shown in (4) shows the sequence obtained by adding the natural untranslated portion to the cDNA specified in (3).
- Production of cDNA having the nucleotide sequence represented by SEQ ID NO: 3, 8, or 13 is performed according to the following method.
- yeasts such as Saccharomyces cerevisiae to use sucrose or raffinose as an energy or carbon source, they must secrete Inbellase into the culture medium. Is an enzyme that breaks down sucrose into sucrose and melibiose, and sucrose into fructose and glucose.) It is also known that many known mammalian signal peptides can secrete yeast ymbertase.
- this method was developed as a method for screening a novel signal peptide capable of secreting yeast invertase from a mammalian cDNA library using the growth of yeast on raffinose medium as an index.
- the non-secretory invertase gene SUC2 (GENBANK accession No. V0131l) from which the translation initiation site ATG was deleted was inserted into a yeast expression vector to prepare a vector pSUC2 for yeast SST.
- the expression vector contains an expression promoter (ADH promoter) derived from the AAH5 plasmid (Gammerer, Methods in Enzymol. 101,192-201,1983) and an evening promoter (ADH terminator).
- ADH promoter derived from the AAH5 plasmid (Gammerer, Methods in Enzymol. 101,192-201,1983) and an evening promoter (ADH terminator).
- the origin is 2 ori
- the yeast selection marker is TRP 1
- the E. coli replication origin is Co 1 E 1 ori
- the E. coli drug resistance marker is ampicillin resistance gene. Each is incorporated.
- a yeast SSTcDNA library was prepared by incorporating mammalian cDNA into the upstream of the SUC2 gene. This library was transformed into a yeast lacking secreted ymbelase. If the integrated mammalian cDNA encodes a signal peptide, it is more likely to have a secretory effect on yeast-expressed invertase, thus allowing growth on raffinose medium .
- the yeast was cultured from the colonies that appeared, a plasmid was prepared, and the nucleotide sequence of the insert cDNA was determined.
- the search for a novel signal peptide was quickly and easily performed.
- step (1) After stimulating with a suitable stimulant as necessary from the target mammalian organ or cell line, a known method (hereinafter, known methods are not particularly described. For example, Molecular Cloning (Sambrook, J., Fritsch, EF and Maniatis, T., published by Cold Spring Harbor Laboratory Press in 1989) or Current Protocol in Molecular Biology (ed.FM Ausubel et al., Edited by John Wiley & Sons, Inc. The isolation of mRNA is performed according to the method described in (1).
- Tissues of interest include the fetal mouse heart. Synthesis of double-stranded cDNA using a random primer is performed by a known method.
- the restriction enzyme (enzyme I) site to be connected to the adapter and the restriction enzyme (enzyme II) site used in the next step (2) may be any as long as they are different from each other.
- Xho I is used as enzyme I and EcoR I is used as enzyme II.
- step (2) the ends are blunted with T4 DNA polymerase, the enzyme adapter is ligated, digested with enzyme I, and 300-800 bp cDNA is fractionated by agarose electrophoresis (AGE).
- Enzyme II may be anything that is different from enzyme I as described above.
- Step (3) is a step of transforming Escherichia coli by incorporating the cDNA fragment obtained in (2) upstream of the invertase gene from which the signal peptide linked to the yeast expression plasmid vector has been deleted.
- various plasmid vectors for yeast expression are known.
- YEp24 or the like that functions in Escherichia coli is used, and preferably, the above-described plasmid pSUC2 is used.
- Transformation may be performed by any known method, but is preferably performed by an electroporation method.
- the transformant is cultured by a known method to obtain a cDNA library for yeast SST.
- the cDNA library can be transformed into a yeast Saccharomycs cerevisiae without the invertase gene (for example, strain Y ⁇ 455) or a strain in which the invertase gene has been artificially deleted (can be prepared according to known methods).
- the cD An NA library is introduced and a fragment having a sequence encoding a signal peptide is screened.
- the yeast is transformed by a known method, for example, the lithium acetate method. After the transformants are grown on a selective medium, they are transferred to a medium containing raffinose as a carbon source, viable colonies are selected, and the plasmid is recovered. The fact that the yeast grew using roughinos as a carbon source indicates that a signal peptide of some secreted protein was incorporated into the library.
- nucleotide sequence of the isolated positive clone was determined, and for cDNA that was found to encode an unknown protein, a full-length clone was isolated using it as a probe, and the full-length nucleotide sequence was determined. Can be determined. These operations are performed in a manner known to those skilled in the art.
- the DNA encoding the protein of the present invention present in mammals or CDNA encoding the homologues and subsets of the protein of the present invention can be obtained.
- oligonucleotide having an appropriate nucleotide sequence and use it to hybridize from a mammalian cDNA library or mRNA by PCR or using a fragment of the appropriate nucleotide sequence as a probe.
- cDNA encoding another mammalian type of the protein can be obtained from another mammalian cDNA library or one genomic library.
- the cDNA contains the base sequence of the cDNA fragment obtained by SST (or a homologous sequence thereof), it means that the signal peptide is coded. It is clear that the cDNA is full-length or nearly full-length (since the signal peptide is present at the N-terminus of the protein without exception, it is encoded at the 5 'end of the open reading frame of the cDNA. Yes.) Further, according to a known method, the full length may be confirmed by Northern analysis using the cDNA as a probe. The size of the mRNA obtained from the hybridized band and the size of the cDNA are compared, and if they are almost the same, the cDNA is considered to be almost full length.
- the present invention provides both full-length as well as mature forms of the disclosed proteins.
- the full-length forms of these proteins are identified by the translated amino acid sequence of the nucleotide sequence shown in SEQ ID NO: 2, 7, or 12.
- These mature proteins can be obtained by expressing the full-length DNA represented by SEQ ID NO: 3, 8, or 13 in a suitable mammalian cell or other host cells.
- the sequence of the mature protein can be predicted from the full-length amino acid sequence.
- nucleotide sequence represented by SEQ ID NO: 2, 5, 7, 10, 12, or 15 is determined, thereafter, a chemical synthesis or a fragment of the nucleotide sequence is chemically synthesized, and this is used as a probe for hybridization. By doing so, the cDNA of the present invention can be obtained.
- a required amount of the desired cDNA can be obtained by introducing a vector cDNA containing the present cDNA into an appropriate host and growing the vector.
- cDN encoding the mature protein part
- An initiation codon (ATG) is added to the 5 'end of A, and the resulting cDNA is ligated to a suitable promoter (eg, trp promoter, lac promoter, ⁇ L promoter, ⁇ 7 promoter, etc.).
- a suitable promoter eg, trp promoter, lac promoter, ⁇ L promoter, ⁇ 7 promoter, etc.
- a vector that functions in E. coli eg, pBR322, pUC18, pUC19, etc.
- Escherichia coli for example, E. Coli DH1, E. Coli JMl09, E. Coli HB101 strain, etc. transformed with this expression vector is cultured in an appropriate medium, and the target cells are transformed from the cells.
- a peptide can be obtained.
- the use of a bacterial signal peptide allows the secretion of the target polypeptide during periplasm. In addition, it can produce fusion proteins with other polypeptides.
- the nucleotide sequence of SEQ ID NO: 2, 5, 7, 10, 12, or 15 may be replaced with an appropriate vector (for example, a retrovirus vector, a papilloma virus vector, Insert an appropriate promoter (eg, SV40 promoter, LTR promoter, metamouth thionine promoter, etc.) in a vaccinia virus vector, SV40-based vector, etc. into an expression vector.
- an appropriate vector for example, a retrovirus vector, a papilloma virus vector, Insert an appropriate promoter (eg, SV40 promoter, LTR promoter, metamouth thionine promoter, etc.) in a vaccinia virus vector, SV40-based vector, etc. into an expression vector.
- appropriate mammalian cells eg, monkey COS-1 cell, COS-7 cell, Chinese hamster CHO cell, mouse L cell, etc.
- the transformant is transformed.
- fusion 'protein fusion protein
- Fc portion constant region of an antibody
- polypeptides of the present invention and the cDNAs encoding them exhibit one or more effects or biological activities, including those associated with Atsushi listed below.
- the effects or biological activities described with respect to the proteins of the present invention may be due to the administration or use of the protein, or the administration or use of the cDNA encoding the protein (eg, for gene therapy or transduction of cDNA).
- suitable vectors Provided by suitable vectors.
- the present inventors have confirmed that the polypeptide of the present invention has an effect of suppressing proliferation of vascular smooth muscle cells. Therefore, the polypeptide of the present invention is used for treating diseases associated with abnormal smooth muscle proliferation, such as intimal hyperplasia, fibroids, etc., which cause arteriosclerosis or restenosis after percutaneous coronary angioplasty (PTCA). It is considered to be applicable to
- the present invention is not limited thereto, but may exhibit the following activities.
- the protein of the present invention may exhibit cytodynamic activity and cell proliferation (induction or inhibition) differentiation activity (induction or inhibition), or induce or suppress the production of other cytokines in a certain cell population.
- proteinaceous factors including all known cytokins, have been active in one or more factor-dependent cell proliferation assays, so that It functions as a convenient method for confirming site strength activity.
- the activity of the proteins of the present invention can be demonstrated by any of a number of conventional factor-dependent cell line cell proliferation assays.
- proteins of the present invention also exhibit immunostimulatory and immunosuppressive activities. Certain proteins may also regulate (stimulate or inhibit) the growth and proliferation of, for example, T and / or B lymphocytes, as well as affect the cytotoxic activity of NK cells and other populations. By giving, it is considered to be effective for the treatment of various immunodeficiencies and diseases (severe combined immunodeficiency (SCID; "H '”)).
- SCID severe combined immunodeficiency
- immunodeficiencies can be hereditary or can be caused, for example, by viruses such as HIV, or by bacterial or fungal infections. Alternatively, it may be from an autoimmune disease.
- human immunodeficiency virus HIV
- hepatitis viruses herpes viruses, herpes viruses, cono, qualis v mycobacteria, leishmania, malaria
- the proteins of the present invention can be treated using the proteins of the present invention.
- the protein of the present invention is considered to be effective in places where it is generally suggested that the immune system is increased, that is, in the treatment of cancer.
- the proteins of the present invention are also believed to be effective in treating allergic reactions and in situations such as asthma and other respiratory diseases. It is contemplated that other conditions in which immunosuppression is desired (including, for example, asthma and related respiratory diseases) can be treated using the proteins of the present invention.
- the protein of the present invention has been proven to be effective, for example, by infections such as septic shock or systemic inflammatory response syndrome (SIRS), inflammatory bowel disease, Crohn's disease, or IL-11. It may also suppress chronic or acute inflammation associated with infections, such as those resulting from overproduction of cytokines such as TNF and IL-11.
- infections such as septic shock or systemic inflammatory response syndrome (SIRS), inflammatory bowel disease, Crohn's disease, or IL-11. It may also suppress chronic or acute inflammation associated with infections, such as those resulting from overproduction of cytokines such as TNF and IL-11.
- the protein of the present invention is expected to be effective in controlling hematopoietic cells and, correspondingly, in treating myeloid or lymphoid cells deficiency. Even weak bioactivity with the help of colony forming cells or factor-dependent cell lines suggests that they may be involved in the control of hematopoietic cells.
- the biological activity relates to one or all of the following examples. Supports the growth and proliferation of erythroid progenitors alone, or in combination with other cytokins, and suggests their efficacy, such as treating various anemias, or producing erythroid progenitors and / or erythrocytes Irritating radiation therapy used in combination with chemotherapy;
- myeloid cells such as granulocytes and monocytes / macrophages (ie, classic CSF activity), combined with chemotherapy to prevent myelosuppression associated with chemotherapy;
- hematopoietic stem cells that can mature into some or all of the hematopoietic cells, and thus supports various stem cell disorders, including but not limited to aplastic anemia and paroxysmal nocturnal hemoglobinuria Can be found to be therapeutically effective (as is commonly treated with transplantation), and can be used to convert normal cells or cells that have been genetically engineered for gene therapy into cells in vitro (in-vitro) or ex-vivo. The same is true for reconstitution of the stem cell fraction after radiation / chemotherapy (either with bone marrow transplantation).
- the protein of the present invention can be measured by the following method, among other methods. [Tissue generation z repair activity]
- the proteins of the present invention are believed to be used in any of bone, cartilage, tendons, ligaments, and nerve tissue growth or regeneration, as well as wound healing and tissue repair, and treatment of burns, incisions, and ulcers. Can be
- Proteins of the invention that induce cartilage and / or bone or any growth in an environment that does not form bone normally have application in the healing of fractures and cartilage damage or defects in humans and other animals. It is considered that the preparation using the protein of the present invention can be used prophylactically for reduction of closed fracture as well as open fracture and improvement of fixation of artificial joint.
- New bone formation induced by osteogenic agents contributes to the repair of congenital, traumatic, and craniofacial defects induced by carcinomactomy. It is also effective in the field of cosmetic plastic surgery.
- the proteins of the present invention are also believed to be used in the treatment of periodontosis and other dental restorations. Such drugs are thought to provide an environment that attracts osteogenic cells, stimulates their proliferation, and induces their progenitor cells to differentiate.
- the protein of the present invention inhibits the process of inflammation or tissue destruction (collagenase activity or osteoclast activity) mediated by stimulating the repair of bone and / or cartilage or any of them. Is considered to be effective in treating osteoporosis and osteoarthritis.
- tissue regeneration activity Another category of tissue regeneration activity that may be attributed to the proteins of the present invention is tendon
- the protein of the present invention induces such tissue formation in an environment where tendon / ligament-like or other tissues are not properly formed; however, in humans and other animals, tears, malformations, and Applicable to healing of other tendon ligament disorders.
- Formulations that use proteins that induce tendon Z ligament-like tissue can be used to improve the fixation of tendon ligaments to bone or other tissues and to repair tendon Z ligament tissue defects.
- prophylactic use is also conceivable for protection against tendon or ligament damage.
- Neo-tendon Z ligament-like tissue formation induced by the compositions of the present invention contributes to the repair of congenital, traumatic, or tendon or ligament defects of other origin. It is also effective in cosmetic plastic surgery in which a tendon or ligament is attached or repaired.
- constructs of the present invention provide an environment that attracts tendon ligament forming cells, stimulates their proliferation, and induces their progenitor cells to differentiate.
- tendon ligament cells or progenitor cells are induced ex vivo in preparation for in vivo reversion to achieve tissue repair.
- compositions of the present invention are also effective in treating tendinitis, Carpal tunnel syndrome, and other tendon or ligament defects.
- the compositions also include sequestering agents well known to those skilled in the art, as well as suitable matrices and carriers.
- the protein of the present invention may be used for the growth of nerve cells and the regeneration of nerve and brain tissue, i.e., for central and central trauma as well as mechanical and traumatic disorders including degeneration, death or trauma of nerve cells or nerve tissue It is also expected to be effective in treating peripheral nervous system diseases and neurological diseases.
- certain proteins are diseases of the peripheral nervous system, such as peripheral neuropathy, peripheral neuropathy, and focal neurosis, and Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, And may be effective in treating central nervous system disorders such as Shy-Drager syndrome.
- Further conditions that can be treated in accordance with the present invention include mechanical and traumatic disorders such as spinal cord disorders, head trauma, and cerebrovascular diseases such as stroke.
- Peripheral neurosis resulting from chemotherapy or other treatments can also be treated using the proteins of the present invention.
- the proteins of the present invention may be used, for example, in the knee, liver, intestine, kidney, skin, organs including endothelium, smooth, skeletal or cardiac muscle, and other vascular tissues including vascular endothelium. It is also expected to exhibit the activity of generating tissue or the activity of promoting or suppressing the proliferation of cells constituting such tissue. Some of the desired effects may also be mediated by inhibition of fibrous scars that regenerate normal tissue.
- the protein of the present invention is also considered to be effective for gastrointestinal tract protection or regeneration, and for treatment of conditions caused by fibrosis of lung or liver, reperfusion injury of various tissues, and systemic site force-in disorder. .
- the protein of the present invention is considered to show activity related to activin inhibin.
- Activin is characterized by its activity in stimulating the release of follicle-stimulating hormone (FSH)
- inhibin is characterized by its activity in inhibiting the release of follicle-stimulating hormone (FSH).
- FSH follicle-stimulating hormone
- the protein of the present invention is a contraceptive regulator based on the activity of inhibin, which is used alone or as a heterodimer with a member of the inhibin ⁇ family, to reduce the fertilization rate of female mammals and to reduce spermatogenesis in males. It is considered to be effective.
- Administration of a sufficient amount of other inhibin can induce infertility in mammals.
- the protein of the present invention is a homodimer or heterodimer with other protein subunits of the inhibin / 3 group, and is based on the activity of an activin molecule that stimulates follicle-stimulating hormone (FSH) release from cells of the pituitary gland. It is considered to be effective as a therapeutic infertility inducer (see US Pat. No. 4,798,885).
- the proteins of the present invention are believed to be effective in hastening the onset of pregnancy in sexually immature mammals in order to extend the lifespan of livestock such as cattle, sheep and pigs.
- the protein of the present invention acts on mammalian cells including, for example, monocytes, neutrophils, mast cells, mast cells, eosinophils, and endothelial cells (for example, acts as a chemokine). Chemotaxis is thought to have chemokinetic activity You.
- Chemotactic z chemokinetic proteins can be used to immobilize or attract the desired cell population to the desired site of the reaction.
- Chemotactic / chemokinetic proteins offer special advantages in treating wounds and other trauma, as well as local infections. For example, attracting lymphocytes, monocytes, or neutrophils to a tumor or site of infection may improve the immune response to the tumor or site of infection.
- a protein or peptide retains chemotactic activity on a particular cell population if it can directly or indirectly stimulate the indicated direction or movement of that cell population. Desirably, the protein or peptide retains the activity of directly stimulating the directed movement of the cell.
- Whether a particular protein retains chemotactic activity for a population of cells can be readily determined using such a protein or peptide in any known cell chemotaxis assay.
- proteins of the present invention also exhibit clotting or thrombotic activity. As a result, such proteins are expected to be effective in treating a variety of coagulation disorders, including genetic disorders such as hemophilia. Alternatively, it is expected to promote clotting and other clotting events in the treatment of wounds resulting from trauma, surgery or other causes.
- the protein of the present invention is also considered to be effective in dissolving or inhibiting the formation of thrombus, and in treating and preventing conditions caused by thrombus or stroke.
- the protein of the present invention may exhibit the activity of a receptor, a receptor ligand or a receptor ligand as an inhibitor or agonist.
- receptors and ligands include cytokine receptors and their ligands. , Receptor kinases and their ligands, receptor phosphatases and their ligands, receptors related to cell-cell interactions (Selectin, Integrin), and cell adhesion molecules including their ligands and receptor kinases Etc.) and their ligands, and combinations of receptor ligands involved in antigen presentation, antigen recognition, and development of cellular and humoral immune responses, but are not intended to limit the invention.
- Receptors and ligands are also effective in screening for possible peptides or small molecules for their interaction.
- the proteins of the present invention including but not limited to receptor and ligand fragments, are believed to be effective as inhibitors of the interaction of self-receptor Z ligands.
- the protein of the present invention can also be used as a nutritional source or nutritional supplement. Such uses include, but are not limited to, protein and amino acid supplementation, use as a carbon and nitrogen source, and use as a carbohydrate source.
- the protein of the present invention can be added to the food of each organism, and can be taken as a separate individual or liquid, such as in the form of powders, tablets, solutions, suspensions, capsules, etc. Wear.
- the protein of the present invention can be added to a culture solution.
- Cadherin is a calcium-dependent adhesion molecule that has been shown to play a major role in ontogeny, especially in recognizing cell types. Deletion or alteration of the expression of normal force doherin can result in altered cell adhesion leading to tumor growth or metastasis. Forced-dherin dysfunction has also been linked to other diseases of humans, such as pemphigus vulgaris and pemphigus foliaceus (autoimmune plaque dermatoses), Crohn's disease, and some developmental abnormalities.
- the members of the Doherin superfamily exceed 40, Indicates the current pattern. All members of the force-doherin superfamily have common conserved extracellular repeats (cadherin domains), but structural differences are observed at other sites in the molecule.
- the cadherin domain binds to calcium and forms a quaternary structure between the doherins, so calcium is essential for adhesion. Only a few amino acids of the first cadherin domain are essential for homophilic adhesion.
- This modification of the recognition site can change the specificity of cadherin, so that the mutant molecule can not only recognize itself but also bind to different cadherins.
- Some force doherins also have heterophilic adhesion with different force doherins.
- E-force doherin is a member of the cadherin superfamily and is expressed in epithelial cell lines. If the expression of E-forcedherin is absent in the tumor, pathologically, malignant cells invade and the cancer metastasizes. Transfection of cancer cell lines with the gene for E-drugin restores cell shape to normal, maintains cell-cell and substrate adhesion, slows cell growth, and is anchorage-independent. A dramatic decrease in cell proliferation reverses the changes associated with cancer. The expression of E-forcedherin thus introduced returns to a stage where cancer progression is low. Another force, doherin, is more likely to have the same invasive suppression function in cancers from different tissues.
- the protein of the present invention having a force doherin activity and the gene of the present invention encoding the same can be used for treating cancer.
- Introducing such a protein or gene into cancer cells can reduce or eliminate the changes seen in cancer cells by providing normal expression of force doherin.
- Cancer cells may also show expression of force doherin in different tissues. As a result, these cells can invade and metastasize to different tissues in the body.
- the protein of the present invention having cadherin activity and the gene of the present invention encoding the same can be replaced with ectopically expressed force doherin. So As a result, normal cell adhesion is maintained and metastasis is reduced or eliminated.
- the protein of the present invention having a force doherin activity and the gene of the present invention encoding the same can be used for production of an antibody that recognizes and binds force doherin.
- Such antibodies can be used to block the binding of ectopically expressed doherin to cancer cells and prevent the formation of cancer.
- anti-cadherin antibodies can also be used as markers for cancer grade, pathological type, and prognosis. That is, if the cancer is more advanced, the expression of force doherin will be lower, and a decrease in expression of force doherin can be detected by using an antibody that binds to force doherin.
- a fragment of the protein of the present invention having a force doherin activity preferably 10 peptides at the force doherin recognition site, and a gene encoding such a protein fragment of the present invention bind to force doherin and have an undesired effect. It can also be used to block the function of cadherin by preventing the binding of the resulting force to doherin.
- a fragment of the protein of the present invention having cadherin activity preferably a truncated solubilizing doherin fragment circulating stably in cancer patients, and a gene encoding such a protein fragment of the present invention are unique. Can be used to inhibit cell-cell adhesion.
- the proteins of the present invention may exhibit additional anti-tumor activities.
- the protein is believed to inhibit tumor growth either directly or indirectly, such as through ADCC. Proteins also inhibit tumor growth by acting on tumor tissue or tumor progenitors, thereby inhibiting the formation of tissues necessary to support tumor growth (eg, inhibiting angiogenesis). May produce tumor inhibiting activity by removing or inhibiting a factor, active agent or cell type that promotes tumor growth by producing another factor, active substance or cell type.
- the proteins (polypeptides) of the invention may exhibit one or more of the following additional activities or effects: infectious agents, including bacteria, viruses, molds, and other parasites Kills;
- Affects behavioral characteristics including appetite, libido, stress, cognition (cognitive impairment), depression, and violent behavior;
- Proteins having the above activities include, for example, proliferation or cell death of B cells, T cells, mast cells, class-specific induction of immunoglobulin by promoting class switching, differentiation of B cells into antibody-producing cells, granulocyte precursor cells Proliferation or differentiation, cell death, proliferation or differentiation of monocytes, macrophage progenitor cells, cell death, neutrophils, monocytes, macrophages, eosinophils, basophils proliferation or hyperactivity, cell death, megakaryocyte precursors Cell proliferation or cell death, neutrophil precursor cell proliferation or differentiation, cell death, B or T precursor cell proliferation or differentiation, cell death, erythrocyte production promotion, erythrocyte, neutrophil, eosinophil, basophil Spheres, monocytes, macrophages, mast cells, megakaryocyte progenitor
- the peptide of the present invention since the peptide of the present invention is also expected to act on the nervous system, it differentiates into various neurotransmitter-operated neurons and maintains their survival or cell death, promotes glial cell proliferation or cell death, Extension, ganglion cell survival or cell death, astrocyte proliferation or differentiation promotion or cell death, peripheral nerve proliferation or survival maintenance, cell death, Schwann cell proliferation or cell death, motor nerve proliferation or survival It is also thought that there is an effect of maintenance and cell death.
- polypeptide of the present invention is used in the developmental process of the early embryo during the development of the early embryo, such as formation of the epidermis, brain, spine, and nerves by the action of inducing ectoderm; Promotes or inhibits the formation of cells, heart, kidney, gonad organs, or the formation of digestive organs (stomach, intestine, liver, ligament) and respiratory system (lung, trachea) by endoderm-inducing action It is considered that it has a proliferative effect, and also has an inhibitory effect on growth or growth of the above organs in adults.
- the polypeptide of the present invention itself may be a disease relating to a decrease or increase in the function of the immune system or nervous system or bone metabolism, or a hypoplasia or abnormal proliferation of hematopoietic cells, such as an inflammatory disease (rheumatic disease).
- a disease relating to a decrease or increase in the function of the immune system or nervous system or bone metabolism, or a hypoplasia or abnormal proliferation of hematopoietic cells, such as an inflammatory disease (rheumatic disease).
- hematopoietic stem cells after bone marrow transplantation, Decrease in leukocytes, platelets, B cells or T cells after irradiation or chemotherapy for cancer, leukemia, anemia, infection, cancer , Leukemia, AIDS, bone metabolism disorders (osteoporosis, etc.), arteriosclerosis, various degenerative diseases (Alzheimer's disease, multiple sclerosis, etc.), or as a preventive or therapeutic agent for nerve damage.
- the polypeptide of the present invention is considered to have an action of dividing and proliferating organs derived from the ectoderm, mesoderm or endoderm, each of the organs (epidermal, bone, muscle, tendon, heart, kidney, stomach, intestine) It is also expected to be used as a tissue repair agent for liver, liver, lung, trachea, etc.).
- the polypeptide of the present invention can be quantified in a living body using the polypeptide monoclonal antibody or the monoclonal antibody, whereby the relationship between the polypeptide of the present invention and a disease can be studied. Alternatively, it can be used for diagnosis of diseases and the like.
- Polyclonal antibodies and monoclonal antibodies can be prepared by known methods using the polypeptide of the present invention or a fragment thereof as an antigen.
- an affinity protein can be prepared, and a known or unknown protein (ligand) that binds to the polypeptide of the present invention can be identified and purified, or its gene can be cloned. You.
- the polypeptide of the present invention for example, by the West-Western method, or using the cDNA of the present invention (preferably, the cDNA encoding the polypeptide of the present invention, for example, the yeast 2-hybrid method)
- identification of a molecule interacting with the polypeptide of the present invention and gene cloning can be performed.
- polypeptide of the present invention it is possible to screen for the polypeptide receptor agonist, the antagonist of the present invention, an inhibitor between a receptor and a signal transduction molecule, and the like.
- Screening can be performed, for example, by the following method. That is,
- a reaction mixture containing the polypeptide of the present invention, the compound to be screened, and the cells is combined under conditions where the cells are normally stimulated by the peptide of the present invention (the reaction mixture grows as the cells grow).
- a label introduced into a cell and a peptide other than the peptide of the present invention for effectively observing the function of the peptide of the present invention);
- a rat vascular smooth muscle cell line (ATCC CR 1444 or CRL ⁇ 1476) is spread on a plate, cultured for 24 hours in the presence of 10% serum, and desirably at a concentration of 1, 10, or 5 ngZml of human PDGF- Replace with a serum-free medium containing BB (GENZYME). If you screening a compound having an en evening agonist activity of A 55 protein, was added this time A 55 protein and to be screened compound simultaneously added 3 H- thymidine after 24 h incubation, the 4-hour culture By measuring the 3 H incorporated into the cells later, a compound that inhibits the 3 H-thymidine uptake inhibitory activity of the A55 protein can be screened.
- the cDNA of the present invention is not only an important and essential type II for producing the polypeptide of the present invention, which is expected to have great utility, but also the diagnosis and treatment of genetic diseases (treatment of gene deficiency). Alternatively, it can be used for treatment by stopping expression of polypeptide by antisense DNA (RNA).
- RNA antisense DNA
- genomic DNA can be separated using the cDNA of the present invention as a probe.
- a mouse or human related polypeptide gene highly homologous to the cDNA of the present invention and a polypeptide gene highly homologous to the polypeptide of the present invention in an organism other than mouse or human are isolated. This is also possible.
- the polypeptide of the present invention or the present invention Antibodies to a polypeptide are usually administered systemically or locally, generally orally or parenterally. Preferred are oral administration, intravenous administration and intraventricular administration.
- Dosage varies depending on age, body weight, symptoms, therapeutic effect, administration method, treatment time, etc., but is generally within the range of 100 g to 100 mg / day for each adult. It may be administered orally once to several times, or parenterally in a dose of 10 g to 100 mg per adult per day, once to several times a day.
- the dose varies depending on various conditions, so that a dose smaller than the above-mentioned dose may be sufficient, or may be required outside the range.
- the compound of the present invention When the compound of the present invention is administered, it is used as a solid composition, a liquid composition and other compositions for oral administration, an injection for parenteral administration, an external preparation, a suppository and the like.
- Solid compositions for oral administration include tablets, pills, capsules, powders, granules and the like.
- Capsules include soft capsules and octade capsules.
- the one or more active substances include at least one inert diluent (e.g., lactose, mannitol, dulose, hydroxypropylcellulose, microcrystalline cellulose, starch). , Polyvinylpyrrolidone, magnesium aluminate metasilicate, etc.).
- the composition may contain additives other than an inert diluent, for example, a lubricant (eg, magnesium stearate), a disintegrant (eg, calcium cellulose glycolate), a stabilizer (eg, human serum albumin, And solubilizers (arginine, aspartic acid, etc.).
- sucrose, gelatin, hydroxypropylcells It may be coated with a gastric or enteric film such as loin, hydroxypropylmethylcell orifice or the like, or may be coated with two or more layers. Also included are capsules of absorbable materials such as gelatin.
- Liquid compositions for oral administration include pharmaceutically acceptable emulsions, solutions, suspensions, syrups, elixirs and the like, and commonly used inert diluents (eg, purified water, Ethanol etc.). Such compositions may contain, in addition to the inert diluent, adjuvants such as wetting agents and suspending agents, sweetening agents, flavoring agents, flavoring agents, and preservatives.
- adjuvants such as wetting agents and suspending agents, sweetening agents, flavoring agents, flavoring agents, and preservatives.
- compositions for oral administration include sprays which contain one or more active substances and are formulated in a manner known per se.
- This composition contains, in addition to the inert diluent, a stabilizer such as sodium bisulfite to provide isotonicity, an isotonic agent such as sodium chloride, sodium citrate or citrate. It may be.
- a stabilizer such as sodium bisulfite to provide isotonicity
- an isotonic agent such as sodium chloride, sodium citrate or citrate. It may be.
- the method for producing sprays is described in detail, for example, in US Pat. Nos. 2,868,691 and 3,095,355.
- Injections for parenteral administration include sterile aqueous or non-aqueous solutions, suspensions, and emulsions.
- aqueous or non-aqueous solution, suspension one or more active substances is mixed with at least one inert diluent.
- Aqueous diluents include, for example, distilled water for injection and saline.
- Non-aqueous diluents include, for example, propylene glycol, polyethylene glycol, vegetable oils such as olive oil, alcohols such as ethanol, Polysorbate 80 (registered trademark) and the like.
- compositions may also contain preservatives, wetting agents, emulsifying agents, dispersing agents, stabilizers (eg, human serum albumin, lactose, etc.), solubilizing agents (eg, arginine, aspartic acid, etc.). It may contain various adjuvants.
- Example 1 Preparation of p o 1 y (A) + RNA
- RNA Prefix-Shiyon 'kit mRNA Purification Kit, trade name, purchased from Pharmacia
- NNNNNNN-3 '(SEQ ID NO: 16) double-stranded cDNA was prepared using Superscript Plasmid System for cDNA Synthesis and Plasmid Cloning (trade name, purchased from GIBCOBRL). Combined. Eco RI adapter (purchased from GIBCO BRL) was used with DNA ligation kit (purchased from DNA ligation kit ver.2, trade name, Takara Shuzo Co., Ltd.). After digestion with XhoI, a 300-800 bp cDNA was cut out by agarose electrophoresis, fractionated, and ligated to the EcOR I / Not I site of PSUC2 (see US Pat. No. 5,536,637).
- Escherichia coli DH10B strain was transformed by electoral poration to obtain a cDNA library for yeast SST.
- Example 3 Screening by SST and determination of base sequence of SST-positive clone A plasmid of this cDNA library is prepared, yeast Y ⁇ 12 strain is transformed by the lithium acetate method (see Current Protocols In Molecular Biology 13.7.1), and a yeast transformant without tributofan (Trp) is obtained. Plated on selective media (CMD-Trp media).
- Raffinose was used for Raffinose, a replica of Koguchi Niiichi (transformant) obtained using Accutran 'Replica' Play Yuichi (Accutran Replica Plater, trade name, purchased from Schleicher & Schuell).
- a replica of Koguchi Niiichi transformant obtained using Accutran 'Replica' Play Yuichi (Accutran Replica Plater, trade name, purchased from Schleicher & Schuell).
- Accutran 'Replica' Play Yuichi Accutran 'Replica' Play Yuichi (Accutran Replica Plater, trade name, purchased from Schleicher & Schuell).
- PCR was performed according to a known method using two types of primers of the both ends of the pSUC2 closing site (the sense strand was a biotinylated primer), and the insert cDNA was amplified.
- Piotinylated single-stranded cDNA was purified using Dynabeads (trade name, purchased from DYNAL), and its nucleotide sequence was determined.
- the nucleotide sequence is determined by a fluorescence sequencing using DNA sequencing kit (Dye Terminator Cycle Sequencing Ready Reaction), trade name, purchased from ADDlied Biosystems Inc.). Then, the DNA was read using an automatic DNA sequencer 373 (Applied Biosystems Inc.) (hereinafter, all the nucleotide sequences were determined by this method). A homology search with the database was performed on the obtained nucleotide sequence and deduced amino acid sequence, and it was revealed that the clone named A55 was a novel cDNA that was not registered on a daily basis. .
- A55 SST fragment cDNA fragment cDNA of the A55 clone
- Phage was prepared from one of the plaques and infected with Escherichia coli XL1-Blue MRF * strain (purchased from Stratagene) together with ExAssist helper phage (purchased from Stratagene), and phagemid (pBluescript SK (- )). After infecting E. coli DH5a strain with the phagemid, a plasmid was prepared from the transformant. First, the nucleotide sequence on the 5 ′ side is determined to confirm that the nucleotide sequence of the mouse A55 SST fragment cDNA is present, and then the entire nucleotide sequence is determined, and the sequence shown in SEQ ID NO: 3 is obtained. Was.
- SEQ ID NO: 2 an amino acid translation region shown in SEQ ID NO: 2 and a deduced amino acid sequence shown in SEQ ID NO: 1 were obtained.
- the mature protein of this polypeptide is represented by SEQ ID NO: 3 (the region between the amino acid sequences 144 to 1418 of SEQ ID NO: 3), 425 amino acids, or the 423 amino acid represented by SEQ ID NO: 4. Presumed to be acid.
- SEQ ID NO: 5 represents the translated region of the polypeptide of SEQ ID NO: 4.
- clone A55 is expected to retain at least the same activity as the EGF family one.
- BLASTX, BLASTP and FASTA are located between the mouse A55 clone (region between amino acid sequences 1-448 of SEQ ID NO: 1) and human S1-5 (region between amino acid sequences 1-387 of Swiss Prot Accession HSU03877). It showed significant homology. It has been reported that human S1-5 is a secreted protein whose expression is induced by fibroblasts at the time of growth inhibition and has activity related to cell proliferation (BeataLecka-Czernik et. Al. Mol. Cell. Biol. 15120-1281995). Furthermore, it showed homology to many other proteins having EGF-like domains.
- Example 5 Isolation of mouse A55 protein isoform gene
- Primer mA55-R 1 5'-CG based on full-length nucleotide sequence information
- the clone represented by SEQ ID NO: 8 utilizes another exon in which the exon 1 portion of the clone represented by SEQ ID NO: 3 is located about 400 bases downstream, and is generated by alternative splicing. was found to be a clone.
- the clone was found to encode an isoform protein (shown in SEQ ID NO: 6) in which the 6-amino acid at the N-terminal shown in SEQ ID NO: 1 was replaced with 19 amino acids.
- the mature protein of the polypeptide is SEQ ID NO: 8 (the amino acid sequence of SEQ ID NO: 8, a region between 340 to 1614), or 425 amino acids, or SEQ ID NO: 9, the 423 amino acids It is estimated to be.
- SEQ ID NO: 10 represents the translated region of the polypeptide of SEQ ID NO: 9.
- Example 4 In the course of the homology search in Example 4, the present inventors found a human EST sequence (GENBANK Accession H17726) having homology with the 5 'end of the nucleotide sequence of mouse A55.
- the present inventors obtained a clone (Clone ID 50483) derived from one human brain CDNA library having the nucleotide sequence described in GENBANK Accession H17726 from the American Type Culture Collection (ATCC), and obtained a mouse A 55 The entire nucleotide sequence was determined in the same manner as in 5. As a result, after obtaining the nucleotide sequence shown in SEQ ID NO: 13, the open reading frame was further determined to obtain the amino acid translation region shown in SEQ ID NO: 12 and the deduced amino acid sequence shown in SEQ ID NO: 11.
- the human clone is full-length, and mouse A55 89.3% at the DNA (amino acid translation region) level and 94.2% at the amino acid level, suggesting that it is a human counterpart to mouse A55 (hereinafter referred to as the human clone). Is called human A55.
- the mature protein of this polypeptide is estimated to be 425 amino acids shown in SEQ ID NO: 13 (region between amino acid sequences 238 and 1512 of SEQ ID NO: 13) or 423 amino acids shown in SEQ ID NO: 14.
- SEQ ID NO: 15 represents the translated region of the polypeptide of SEQ ID NO: 14.
- the mouse full-length cDNA shown in SEQ ID NO: 3 was ligated to a mammalian cell expression vector pNotS (see Kaufman et al., Nucleic Acids Res. 19, 4485-4490 (1991)), and the mouse A55 protein
- An expression plasmid pNotS-mA55 was constructed.
- pNotS and pNotS-mA55 were transfected into 293T cells (ATCC CRL-1573 cell line in which SV40 T antigen was introduced into 293 cells) using lipofectin (trade name, purchased from GIBCO BRL).
- the medium was replaced with a met-free medium supplemented with 35 S-methionine (Met), and after labeling for 30 minutes, the cells were cultured in a medium containing Met for 5 hours. After collecting the cell supernatant, the cells were concentrated about 10-fold with Centricon-10 (trade name, purchased from Amicon) and subjected to SDS-PAGE. After drying the acrylamide gel, the expression of the protein labeled with 35 S was detected using BAS2000 (Fuji Film).
- Method 35 S-methionine
- mice A55 protein was expressed and secreted into the culture supernatant.
- the molecular weight of this mouse A55 recombinant protein is larger than the molecular weight of mouse A55 calculated from the amino acid composition, 48 kDa.
- the mouse A55 protein has two N-glycosylation sites and a ⁇ -glycan. Since there are many Ser and Thr residues available, N- and O-type sugar chains were expected to be added.
- Example 8 Measurement of rat vascular smooth muscle cell proliferation inhibitory effect of mouse A55 protein
- vascular smooth muscle cells were isolated from the aorta extending from the heart of the rat to the diaphragm and subjected to primary culture.
- the human full-length cDNA represented by SEQ ID NO: 13 was ligated downstream of a mammalian cell expression vector pNotS (see Kaufman et al., Nucleic Acids Res. 19, 4485-4490 (1991)), and expressed human A55 protein.
- the plasmid pNotS-hA55 was constructed.
- pNo t S and pNo t S- hA55 the Ripofuekuchin was introduced into the Co s 1 cells using the (trade name, purchased from GIBCOBRL), after which the medium was replaced with a medium of Me t free after 24 hours, 35 S- Me t, 35 S-Cys was added and the cells were cultured for 5 hours.
- SEQ ID NO: 238 to 1515 DNA and SEQ ID NO: 15 The indicated cDNA with a stop codon added to the indicated cDNA is 3 'downstream of the DNA sequence encoding the honeybee melanin signal peptide followed by the evening sequence of 6 histidine residues and the enterokinase cleavage sequence.
- a plasmid for expression of human A55 protein was constructed by inserting the expression vector for mammalian cells downstream of the promoter of pNotS. Only the expression vector and the vector for human A55 protein expression are introduced into Cos 1 cells using lipofectin (trade name, purchased from GIBCOBRL), and the cell supernatant is collected and digested with enterokinase. Then, the linker sequence cut by the nickel column was removed. The solution was further concentrated about 10 times with Centricon-10 (trade name, purchased from Amicon) with respect to the original culture supernatant.
- Rat vascular smooth muscle cell line (ATCC CRL-1444) is spread on a 96-well plate, cultured for 24 hours in the presence of 10% serum, and then cultured at various concentrations (1, 10 or 5 O ng / m 1) of human PDGF- The medium was replaced with a serum-free medium containing BB (GENZYME) and incubated for 24 hours. At the same time, only the expression vector treated by the above method or the culture supernatant of Cos 1 cells transfected with the human A55 protein expression vector was added to 10% of the medium volume. After culturing for 24 hours, a 0.5 mC hole of 3 H-thymidine was added, and after culturing for 4 hours, 3 H incorporated into the cells was measured.
- BB serum-free medium containing BB
- the anti-mouse A55 protein polyclonal antibody was purified by an affinity column to which a peptide fragment using each of the obtained sera as an immunogen was bound.
- Example 7 After the culture supernatant prepared in the same manner as in Example 7 was subjected to SDS-PAGE, the protein was transferred from acrylamide gel to Immobilon-P (PVDF membrane, trade name, purchased from Millipore). The prepared anti-mouse A55 polyclonal antibody was used as a primary antibody to develop color using an ECL kit (trade name, purchased from Amersham), and the recombinant mouse A55 protein was detected.
- the mouse A55 expression vector pNot t S-mA55 In the culture supernatant of the vesicles, a single band was detected at around 60 kDa, which is the same position as the 35 S-labeled experiment described in Example 7. On the other hand, no band was detected near 60 kDa in the supernatant of cells into which only the expression vector pNotS was introduced. This confirmed that the polyclonal antibody obtained specifically recognized mouse A55 protein.
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Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP99917215A EP1090992A4 (en) | 1998-04-28 | 1999-04-28 | NEW POLYPEPTIDE, DNA CODING IT, AND ITS USE |
KR1020007011972A KR20010043090A (ko) | 1998-04-28 | 1999-04-28 | 신규인 폴리펩티드, 그 폴리펩티드를 코드화하는 cDNA및 그 용도 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP11973198 | 1998-04-28 | ||
JP10/119731 | 1998-04-28 |
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WO1999055864A1 true WO1999055864A1 (fr) | 1999-11-04 |
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PCT/JP1999/002283 WO1999055863A1 (fr) | 1998-04-28 | 1999-04-28 | Nouveau polypeptide, adnc le codant et son utilisation |
PCT/JP1999/002284 WO1999055864A1 (fr) | 1998-04-28 | 1999-04-28 | Nouveau polypeptide, adnc le codant et son utilisation |
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PCT/JP1999/002283 WO1999055863A1 (fr) | 1998-04-28 | 1999-04-28 | Nouveau polypeptide, adnc le codant et son utilisation |
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US (1) | US6846647B1 (ja) |
EP (2) | EP1090992A4 (ja) |
KR (2) | KR20010043088A (ja) |
WO (2) | WO1999055863A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US7759083B2 (en) | 2004-05-26 | 2010-07-20 | Shionogi & Co., Ltd. | Screening method for a growth inhibitor or promoter of a vascular smooth muscle cell |
US7887581B2 (en) | 2000-07-20 | 2011-02-15 | Multi-Gene Vascular Systems, Ltd. | Methods of hemodialysis utilizing grafts coated with cells expressing human fibulin-5 |
US8022195B2 (en) | 2000-07-20 | 2011-09-20 | Multi-Gene Vascular Systems, Ltd. | Vectors encoding cell growth and adhesion factors for simultaneous growth and adhesion of cells |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6555581B1 (en) | 2001-02-15 | 2003-04-29 | Jones Pharma, Inc. | Levothyroxine compositions and methods |
DE102009008467A1 (de) | 2009-02-10 | 2010-08-12 | Semakin, Sergej, Dr. | Autobahn |
JP6126004B2 (ja) | 2010-10-25 | 2017-05-10 | ザ・チルドレンズ・ホスピタル・オブ・フィラデルフィアThe Children’S Hospital Of Philadelphia | 血小板の生成のための組成物および方法、およびそれらの使用の方法 |
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WO1997038002A1 (en) * | 1996-04-10 | 1997-10-16 | Human Genome Sciences, Inc. | Extracellular/epidermal growth factor-like protein |
WO1997039123A2 (en) * | 1996-04-18 | 1997-10-23 | Genetics Institute, Inc. | Secreted proteins |
WO1997039122A2 (en) * | 1996-04-12 | 1997-10-23 | Muro Pharmaceutical, Inc. | ISOLATED AND CLONED MAST CELL 78 kDa PHOSPHOPROTEIN (MAST CELL DEGRANULATION INHIBITORY AGENT) AND USE THEREOF |
WO1998046746A1 (en) * | 1997-04-11 | 1998-10-22 | Human Genome Sciences, Inc. | Extracellular/epidermal growth factor like protein |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997038012A1 (en) * | 1996-04-10 | 1997-10-16 | Human Genome Sciences, Inc. | Extracellular/epidermal growth factor hcaba58x |
US5872234A (en) * | 1997-06-27 | 1999-02-16 | Incyte Pharmaceuticals, Inc. | Human extracellular matrix proteins |
AU8176798A (en) * | 1997-06-30 | 1999-01-19 | Genetics Institute Inc. | Secreted proteins |
-
1999
- 1999-04-28 WO PCT/JP1999/002283 patent/WO1999055863A1/ja not_active Application Discontinuation
- 1999-04-28 EP EP99917215A patent/EP1090992A4/en not_active Withdrawn
- 1999-04-28 KR KR1020007011970A patent/KR20010043088A/ko not_active Application Discontinuation
- 1999-04-28 US US09/674,330 patent/US6846647B1/en not_active Expired - Fee Related
- 1999-04-28 EP EP99917214A patent/EP1074622A4/en not_active Withdrawn
- 1999-04-28 KR KR1020007011972A patent/KR20010043090A/ko not_active Application Discontinuation
- 1999-04-28 WO PCT/JP1999/002284 patent/WO1999055864A1/ja not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997038002A1 (en) * | 1996-04-10 | 1997-10-16 | Human Genome Sciences, Inc. | Extracellular/epidermal growth factor-like protein |
WO1997039122A2 (en) * | 1996-04-12 | 1997-10-23 | Muro Pharmaceutical, Inc. | ISOLATED AND CLONED MAST CELL 78 kDa PHOSPHOPROTEIN (MAST CELL DEGRANULATION INHIBITORY AGENT) AND USE THEREOF |
WO1997039123A2 (en) * | 1996-04-18 | 1997-10-23 | Genetics Institute, Inc. | Secreted proteins |
WO1998046746A1 (en) * | 1997-04-11 | 1998-10-22 | Human Genome Sciences, Inc. | Extracellular/epidermal growth factor like protein |
Non-Patent Citations (1)
Title |
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See also references of EP1090992A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7887581B2 (en) | 2000-07-20 | 2011-02-15 | Multi-Gene Vascular Systems, Ltd. | Methods of hemodialysis utilizing grafts coated with cells expressing human fibulin-5 |
US8022195B2 (en) | 2000-07-20 | 2011-09-20 | Multi-Gene Vascular Systems, Ltd. | Vectors encoding cell growth and adhesion factors for simultaneous growth and adhesion of cells |
US8088160B2 (en) | 2000-07-20 | 2012-01-03 | Multi-Gene Vascular Systems Ltd. (“MGVS”) | Drug-eluting intravascular prostheses and methods of use |
US7759083B2 (en) | 2004-05-26 | 2010-07-20 | Shionogi & Co., Ltd. | Screening method for a growth inhibitor or promoter of a vascular smooth muscle cell |
Also Published As
Publication number | Publication date |
---|---|
EP1074622A4 (en) | 2004-05-19 |
KR20010043090A (ko) | 2001-05-25 |
EP1090992A4 (en) | 2004-05-19 |
EP1090992A1 (en) | 2001-04-11 |
KR20010043088A (ko) | 2001-05-25 |
WO1999055863A1 (fr) | 1999-11-04 |
EP1074622A1 (en) | 2001-02-07 |
US6846647B1 (en) | 2005-01-25 |
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