WO2008094012A1 - Novel polypeptide having anti-tumor activity - Google Patents
Novel polypeptide having anti-tumor activity Download PDFInfo
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- WO2008094012A1 WO2008094012A1 PCT/KR2008/000621 KR2008000621W WO2008094012A1 WO 2008094012 A1 WO2008094012 A1 WO 2008094012A1 KR 2008000621 W KR2008000621 W KR 2008000621W WO 2008094012 A1 WO2008094012 A1 WO 2008094012A1
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- 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
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- 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
- C07K14/4747—Apoptosis related proteins
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
Definitions
- the present invention relates to a novel polypeptide having anti-tumor activity, and more particularly, to a novel polypeptide having anti-tumor activity through inducing apoptosis of endothelial cell.
- Apoptosis which is first described by Kerr et al . in 1972, is a physiological phenomenon that is necessary for maintaining homeostasis and developing normal organs in multicellular organisms. It is an intracellular mechanism which happens selectively in cells responding to a certain stimulus. Particularly, cells can induce programmed cell death by various stress such as starvation, virus, oxygen radicals or chromosome damaging agents.
- the apoptosis can be found by observing chromosomal DNA fragmentation, activation of caspase family and specific morphological changes such as chromatin condensation, blebbing, cell shrinkage and apoptotic body (John D R et al, 2000, J. Structur. Biol.
- apoptosis not only performs a physiological function for maintaining homeostasis in tissue, but induces various diseases through cell proliferation or cell loss caused by abnormally inhibiting or activating of apoptosis. Also, apoptosis plays an important role in maintaining lymphocyte homeostasis, which is one of mechanisms for regulation of immune response, and killing of target cells by lymphocytes.
- AIMPl ARS-interacting multi-functional protein 1
- the AIMPl is a protein consisting of 312 amino acids, which binds to a multi-tRNA synthetase complex to increase the catalytic activity of the multi-tRNA synthetase complex.
- the AIMPl is highly expressed in microneuron in the resions of autoimmune diseases including encephalomyelitis, neuritis and uveitis in vitro.
- a peptide consisting of numerous amino acids has shortcomings in that it is metabolized upon in vivo administration, leading to the cleavage of the peptide bond, and tends to decompose in a process of formulation.
- the pharmacological activity of peptides needs to be kept, it is an important in the development of drugs to find the minimum length peptide (s) with activity comparable to that of a long- chain peptide.
- a polypeptide including a part of amino acid sequences in the middle region of known AIMPl protein has anti-tumor activity by inducing apoptosis of endothelial cell, thereby completing the present invention.
- an object of the present invention to provide an isolated polypeptide comprising the amino acid sequence of SEQ ID NO : 9 or the amino acid sequence having at least 90% sequence homology to the amino acid sequence of SEQ ID NO: 9, or an isolated polynucleotide encoding the polypeptide and use for anti-tumor activity thereof .
- the present invention provides an isolated polypeptide comprising the amino acid sequence of SEQ ID NO: 9 or the amino acid sequence having at least 90% sequence homology to the amino acid sequence of SEQ ID NO: 9, and an isolated polynucleotide encoding the polypeptide.
- the present invention provides a pharmaceutical composition comprising the polypeptide and the polynucleotide encoding the polypeptide.
- the present invention provides methods for inducing apoptosis of endothelial cell and for preventing or treating cancer, comprising administering to a subject in need thereof an effective amount of the polypeptide or the polynucleotide encoding the polypeptide.
- the present invention provides use of the polypeptide or the polynucleotide encoding the polypeptide, for preparation a pharmaceutical composition for treating cancer.
- the term "effective amount” refers to an amount effective in inducing apoptosis of endothelial cell or showing anti-tumor activity in vivo or in vitro.
- the term "subject" means mammals, and particularly animals including human beings, or the cells or tissues of animals.
- the subject may be patients in need of treatment.
- the cells may preferably be endothelial cell.
- the polypeptide of the present invention includes 101-170 amino acid sequence of the AIMPl protein.
- AIMPl ARS-interacting multi-functional protein 1
- p43 protein was previously known as the p43 protein and renamed by the present inventors (Sang Gyu Park, et al . , Trends in Biochemical Sciences, 30:569-574, 2005).
- the AIMPl is a protein consisting of 312 amino acids, which binds to a multi-tRNA synthetase complex to increase the catalytic activity of the multi-tRNA synthetase complex. It is known that the AIMPl is secreted from various types of cells, including prostate cancer cells, immune cells and transgenic cells, and the secreted AIMPl works on diverse target cells such as monocytes/macrophages, endothelial cells and fibroblast cells. The following three SNPs of the AIMPl are known (see NCBI SNP database) : substitution of 79th alanine (Ala) to proline (Pro) (SNP accession no.
- the present inventors constructed a series of deletion fragments of the AIMPl so as to determine a functional domain of AIMPl related to endothelial cell death(see Fig.l and Fig.2), and then examined activity of fragments in inducing apoptosis of endothelial cell death (see ⁇ example 2>) . Consequently, it could be supposed that a region of amino acid 101-192 of the AIMPl would be a domain having the activity of inducing apoptosis of endothelial cell(see Fig.4 and Fig.5).
- the region of the AIMPl- (101-192) was cleaved to prepare small fragments (see ⁇ exa ⁇ nple 3-l>) and the activities of these fragments in inducing apoptosis of endothelial cell were also examined (see from Fig.8 to Fig.10) .
- AIMPl- (101-170) mutant can induce apoptosis of endothelial cell
- the present inventors constructed AIMPl- (101-170) C161S peptide by inducing Cl ⁇ lS point mutation in the AIMPl- (101-170) peptide (see ⁇ example 4-l>) .
- the present inventors found that the AIMPl- (101-170) C161S had an activity of inducing endothelial cell death in the absence of DTT (see Fig.11) .
- the present inventors examined whether AIMPl- (101-170) peptide had anti-tumor activity. As a result, the present inventors found that the AIMPl-(IOl- 170) had more effective anti-tumor activity than the AIMPl full length protein (see Fig.14 ) without side effect of body weight loss (see Fig.12 and Fig.13) .
- the present invention provides a polypeptide comprising the amino acid sequence of SEQ ID NO: 9 or the amino acid sequence having at least 90% sequence homology to the amino acid sequence of SEQ ID NO : 9.
- the inventive polypeptide may consist of, but not limited to, the amino acid sequence selected from the group consisting of SEQ ID NO: 4 to SEQ ID NO: 8 and SEQ ID NO: 10 to SEQ ID NO: 14.
- the amino acid sequence select from SEQ ID NO: 11 to SEQ ID NO: 14 is a known SNP of the amino acid sequence of SEQ ID NO: 9 or SEQ ID NO: 10.
- the inventive polypeptide may consist of the amino acid sequence of SEQ ID NO: 9 or SEQ ID NO: 10.
- the inventive polypeptide may include functional equivalents of the polypeptide having the amino acid sequence of SEQ ID NO: 9, and preferably functional equivalents of the polypeptide having the amino acid sequence of SEQ ID NO: 9, as well as salts thereof.
- the term "functional equivalents" refers to polypeptide comprising the amino acid sequence having at least 80% amino acid sequence homology (i .e ., identity), preferably at least 90%, and more preferably at least 95% for example, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, and 100% to the amino acid sequence of SEQ ID NO: 9 that exhibit substantially identical physiological activity to the polypeptide of SEQ ID NO: 9.
- sequence identity or homology is defined herein as the percentage of amino acid residues in the candidate sequence that are identical with amino acid sequence of SEQ ID NO: 9, after aligning the sequences and introducing gaps, if necessary, to achieve the maximum percent sequence identity, and not considering any conservative substitutions (as described above) as part of the sequence identity. None of N- terminal, C-terminal, or internal extensions, deletions, or insertions into the amino acid sequence of SEQ ID NO: 9 shall be construed as affecting sequence identity or homology. Thus, sequence identity can be determined by standard methods that are commonly used to compare the similarity in position of the amino acids of two polypeptides.
- two polypeptides are aligned for optimal matching of their respective amino acids (either along the full length of one or both sequences or along a predetermined portion of one or both sequences) .
- the programs provide a default opening penalty and a default gap penalty, and a scoring matrix such as PAM 250 (a standard scoring matrix; see Dayhoff et al . , in Atlas of Protein Sequence and Structure, vol. 5, supp. 3 (1978)) can be used in conjunction with the computer program.
- PAM 250 a standard scoring matrix; see Dayhoff et al . , in Atlas of Protein Sequence and Structure, vol. 5, supp. 3 (1978)
- the percent identity can be calculated as: the total number of identical matches multiplied by 100 and then divided by the sum of the length of the longer sequence within the matched span and the number of gaps introduced into the longer sequences in order to align the two sequences.
- the scope of the functional equivalents as used herein also encompasses derivatives obtained by modifying a part of the chemical structure of the inventive polypeptide while maintaining the basic framework and the activity inducing endothelial cell death or inhibiting cancer cell proliferation. For example, this includes structural modifications for altering the stability, storage, volatility or solubility of the polypeptide.
- the polypeptide according to the present invention can be prepared by a genetic engineering method using the expression of recombinant nucleic acid encoding the same.
- a DNA molecule encoding the AIMPl or its fragment is first constructed according to any conventional method.
- the DNA molecule may synthesized by performing PCR using suitable primers.
- the DNA molecule may also be synthesized by a standard method known in the art, for example using an automatic DNA synthesizer (commercially available from Biosearch or Applied Biosystems) .
- the constructed DNA molecule is inserted into a vector comprising at least one expression control sequence (ex: promoter, enhancer) that is operatively linked to the DNA sequence so as to control the expression of the DNA molecule, and host cells are transformed with the resulting recombinant expression vector.
- the transformed cells are cultured in a medium and condition suitable to express the DNA sequence, and a substantially pure polypeptide encoded by the DNA sequence is collected from the culture medium.
- the collection of the pure polypeptide may be performed using a method known in the art, for example, chromatography.
- the term "substantially pure polypeptide” means the inventive polypeptide that does not substantially contain any other proteins derived from host cells.
- the reader may refer to the following literatures: Maniatis et al . , Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Laboratory 1982; Sambrook et al . , supra; Gene Expression Technology, Method in Enzymology, Genetics and Molecular Biology, Method in Enzymology, Guthrie & Fink (eds.), Academic Press, San Diego, Calif. 1991; and Hitzeman et al . , J. Biol. Chem. , 255, 12073-12080 1990.
- the inventive polypeptide can be chemically synthesized according to any technique known in the art (Creighton, Proteins: Structures and Molecular Principles, W. H. Freeman and Co., NY, 1983). Namely, the inventive polypeptide can be prepared by conventional step-wise liquid or solid phase synthesis, fragment condensation, F-MOC or T-BOC chemistry (Chemical Approaches to the Synthesis of Peptides and Proteins, Williams et al . , Eds., CRC Press, Boca Raton Florida, 1997; A Practical Approach, Atherton & Sheppard, Eds., IRL Press, Oxford, England, 1989) .
- inventive polypeptide can be synthesized by performing the condensation reaction between protected amino acids by the conventional solid-phase method, beginning with the C-terminal and progressing sequentially with the first amino acid, the second amino acid, the third amino acid, and the like according to the identified sequence. After the condensation reaction, the protecting groups and the carrier connected with the C-terminal amino acid may be removed by a known method such as acid decomposition or aminolysis .
- the above-described peptide synthesis method is described in detail in the literature (Gross and Meienhofer ' s, The peptides, vol. 2, Academic Press, 1980) .
- Examples of a solid-phase carrier which can be used in the synthesis of the polypeptide according to the present invention, include polystyrene resins of substituted benzyl type, polystyrene resins of hydroxymethylphenylacetic amide form, substituted benzhydrylpolystyrene resins and polyacrylamide resins, having a functional group capable of bonding to peptides.
- the condensation of amino acids can be performed using conventional methods, for example dicyclohexylcarbodimide (DDC) method, acid anhydride method and activated ester method.
- DDC dicyclohexylcarbodimide
- Protecting groups used in the synthesis of the inventive peptide are those commonly used in peptide syntheses, including those readily removable by conventional methods such as acid decomposition, reduction or aminolysis. Specific examples of such amino protecting groups include formyl; trifluoroacetyl ; benzyloxycarbonyl ; substituted benzyloxycarbonyl such as
- the carboxyl groups of amino acids can be protected through conversion into ester groups.
- the ester groups include benzyl esters, substituted benzyl esters such as methoxybenzyl ester; alkyl esters such as cyclohexyl ester, cycloheptyl ester or t-butyl ester.
- the guanidino moiety may be protected by nitro; or arylsulfonyl such as tosyl, methoxybenzensulfonyl or mesitylenesulfonyl, even though it does not need a protecting group.
- the protecting groups of imidazole include tosy, benzyl and dinitrophenyl .
- the indole group of tryptophan may be protected by formyl or may not be protected. Deprotection and separation of protecting groups from carriers can be carried out using anhydrous hydrofluoride in the presence of various scavengers .
- scavengers examples include those commonly used in peptide syntheses, such as anisole, (ortho-, meta- or para-) cresol, dimethylsulfide, thiocresol, ethanendiol and mercaptopyridine .
- the recombinant peptide prepared by the genetic engineering method or the chemically synthesizing can be isolated and purified according to methods known in the art, including extraction, recrystallization, various chromatographic techniques (e .g. , gel filtration, ion exchange, precipitation, adsorption, reverse phase, etc.), electrophoresis and counter current distribution.
- the present invention provides an isolated polynucleotide encoding the isolated polypeptide having the amino acid sequence of SEQ ID NO: 9 or the amino acid sequence having at least 90% sequence homology to the amino acid sequence.
- the polynucleotide comprises DNA, cDNA and RNA sequences.
- the polynucleotide has the base sequence selected from the group consisting of SEQ ID NO: 48 to SEQ ID NO: 58.
- the polynucleotide of SEQ ID NO: 55 to SEQ ID NO: 58 encodes the known SNP of the polypeptide of SEQ ID NO: 9 or SEQ ID NO: 10.
- the polynucleotide can be prepared by separating from nature materials or genetic engineering methods known in the art to which the present invention pertains.
- the present invention provides a vector containing the polynucleotide according to the present invention.
- the vector may be, but not limited to, a plasmid or viral vector.
- the inventive polynucleotide can be introduced into a target cell by inserting it into the vector and then introducing the vector into a target cell by any method known in the art, such as infection, transfection and transduction.
- a gene transfer method using a plasmid expression vector is a method of transferring a plasmid DNA directly to mammalian cells, which is an FDA-approved method applicable to human beings (Nabel, E. G., et al . , Science, 249:1285-1288, 1990).
- the plasmid DNA has an advantage of being homogeneously purified.
- Plasmid expression vectors which can be used in the present invention include mammalian expression plasmids known in the pertinent art. For example, they are not limited to, but typically include pRK5 (European Patent No. 307,247), pSV16B (PCT Publication No.
- the plasmid expression vector containing the polynucleotide according to the present invention may be introduced into target cells by any method known in the art, including, but not limited to, transient transfection, microinjection, transduction, cell fusion, calcium phosphate precipitation, liposome- mediated transfection, DEAE dextran-mediated transfection, polybrene-mediated transfection, electroporation, gene gun methods, and other known methods for introducing DNA into cells (Wu et al . , J. Bio. Chem. , 267:963-967, 1992; Wu and Wu, J. Bio. Chem. , 263:14621-14624, 1988).
- virus expression vectors containing the polynucleotide according to the present invention include, but are not limited to, retrovirus, adenovirus, herpes virus, avipox virus and so on.
- the retroviral vector is so constructed that non-viral proteins can be produced within the infected cells by the viral vector in which virus genes are all removed or modified.
- the main advantages of the retroviral vector for gene therapy are that it transfers a large amount of genes into replicative cells, precisely integrates the transferred genes into cellular DNA, and does not induce continuous infections after gene transfection (Miller, A. D., Nature, 357:455-460, 1992).
- the retroviral vector approved by FDA was prepared using PA317 amphotropic retrovirus packaging cells (Miller, A. D.
- Non-retroviral vectors include adenovirus as described above (Rosenfeld et al . , Cell, 68:143-155, 1992; Jaffe et al . , Nature Genetics, 1:372- 378, 1992; Lemarchand et al . , Proc. Natl. Acad. Sci. USA, 89:6482-6486, 1992).
- the main advantages of adenovirus are that it transfers a large amount of DNA fragments (36kb genomes) and is capable of infecting non- replicative cells at a very high titer.
- herpes virus may also be useful for human genetic therapy (Wolfe, J. H., et al., Nature Genetics, 1:379-384, 1992).
- the lentivirus is a kind of retrovirus and developed to new retroviral vector since the late 1990s.
- the lentiviral vector is constructed by modifying HIV backbone. It has high transfection efficiency in dividing and non-diving cells since it is not influenced by cell cycle unlike other retroviral vectors. Thus it has been developed as potential vectors for gene transfer in the cell therapy field using hematopoietic and keratinocyte stem cells, since transfection efficiency of the lentiviral vector in slow-dividing cell such as hematopoietic cell is higher than that of other viral vectors.
- other known suitable viral vectors can be used.
- the transformation with the vector can be carried out according to any known transformation method in the pertinent art, preferably, microprojectile bombardment, electroporation, CaPO 4 precipitation, CaCl 2 precipitation, PEG-mediated fusion, microinjection and liposome-mediated method, but not limited to.
- the transformant may be Escherichia coli, Bacillus subtilis, Streptomyces, Pseudomonas, Proteus mirabilis and Staphylococcus, Agrobacterium tumefaciens, but not limited to.
- the present invention provides a pharmaceutical composition
- a pharmaceutical composition comprising the inventive polypeptide or polynucleotide encoding the same and a pharmaceutically acceptable salt.
- the inventive pharmaceutical composition can be, but not limited to, the pharmaceutical composition for treating cancer.
- the inventive pharmaceutical composition may further comprise a pharmaceutically acceptable carrier or excipient .
- the carrier or excipient can include, but not limited to, dispersing agents, wetting agents, suspension agents, diluents, and fillers.
- the ratio between the pharmaceutically acceptable carriers and expression vectors included in the inventive pharmaceutical composition is fixed by solubility and chemical properties of the composition or administration ways.
- the therapeutic or preventive effective amount of the inventive pharmaceutical composition containing the AIMl protein-encoding polynucleotide may be suitably selected depending on the subject to be administered, age, individual variation and disease condition.
- the term "pharmaceutically acceptable” means what is physiologically acceptable and, when administered to human beings, generally does not cause allergic reactions, such as gastrointestinal disorder and dizziness, or similar reactions thereto.
- Examples of the pharmaceutically acceptable salt include salts with inorganic bases, salts with organic bases, salts with inorganic acids, salts with organic acids, salts with basic or acidic amino acids and the like.
- Examples of the salt with an inorganic acid include alkali metal salts, such as a sodium salt and a potassium salt; an alkaline earth metal salt such as a calcium salt and a magnesium salt; an aluminum salt; and an ammonium salt.
- Examples of the salt with an organic base include salts with trimethylamine, triethylamine, pyridine, picoline, 2 , 6--lutidine, ethanolamine, diethanolamine, triethanolamine, cyclohexylamine, dicyclohexylamine and N,N' - dibenzylethylenediamine .
- Examples of the salt with an inorganic acid include salts with hydrochloric acid, boric acid, nitric acid, sulfuric acid and phosphoric acid.
- Examples of the salt with an organic acid include salts with formic acid, acetic acid, trifluoroacetic acid, phthalic acid, fumaric acid, oxalic acid, tartaric acid, maleic acid, citric acid, succinic acid, malic acid, methanesulfonic acid, benzenesulfonic acid and p- toluenesulfonic acid.
- Examples of the salt with a basic amino acid include salts with arginine, lysine and ornithine.
- Examples of the salt with an acidic amino acid include salts with aspartic acid and glutamic acid.
- inventive pharmaceutical composition may also be formulated, but not limited to, as preparations for oral administration.
- inventive polypeptide, the polynucleotide coding the same, and the pharmaceutically acceptable salt mixed with the excipients can be formulated in the form of ingestible tablets, buccal tablets, troches, capsules, elixirs, suspensions, syrups, wafers, and the like.
- These preparations may also comprise diluents (e.g., lactose, dextrose, sucrose, mannitol, sorbitol, cellulose and/or glycine), lubricants (e.g., silica, talc, stearic acid and a magnesium or calcium salt thereof, and/or polyethylene glycol) in addition to the active ingredient.
- diluents e.g., lactose, dextrose, sucrose, mannitol, sorbitol, cellulose and/or glycine
- lubricants e.g., silica, talc, stearic acid and a magnesium or calcium salt thereof, and/or polyethylene glycol
- tablets may also comprise binders, such as magnesium aluminum silicate, starch pastes, gelatin, tragacanth, methylcellulose, sodium carboxymethylcellulose and/or polyvinylpyrrolidone, and, if desired, may further comprise disintegrating agents, such as starches, agar or alginic acid or a sodium salt thereof, absorbents, colorants, flavors and sweeteners.
- binders such as magnesium aluminum silicate, starch pastes, gelatin, tragacanth, methylcellulose, sodium carboxymethylcellulose and/or polyvinylpyrrolidone
- disintegrating agents such as starches, agar or alginic acid or a sodium salt thereof, absorbents, colorants, flavors and sweeteners.
- the inventive pharmaceutical composition may be administered by various routes according to any method known in the art. Namely, it may be administered by oral or parenteral routes.
- the parenteral routes include methods for applying to the skin locally, intramuscular, intravenous, intracutaneous, intraarterial, intramarrow, intrathecal, intraperitoneal, intranasal, intravaginal, intrarectal, sublingual and subcutaneous or administering to gastrointestinal tracts, mucosa or respiratory organs systemically.
- the inventive pharmaceutical composition may be administered by a method of applying the polypeptide directly to the skin or a method comprising formulating the polypeptide in an injectable form, and then, injecting a given amount of the formulation into a subcutaneous layer with a 30 -gauge injection needle or lightly pricking the skin with an injection needle.
- the inventive polypeptide may be applied directly to the skin.
- the inventive pharmaceutical composition may also be administered in a form bound to a molecule causing a high-affinity binding to a target cell or tissue (e.g., skin cell or skin tissue) or in a form encapsulated in the molecule.
- the inventive pharmaceutical composition can be bound to sterol (e.g., cholesterol), a lipid(e.g., a cationic lipid, virosome or liposome), or a target cell-specific binding agent(e.g., a ligand recognized by target cell specific receptor) using the technology known in the art.
- Suitable coupling agents or crosslinking agents may include, for example, protein A, carbodiimide, and N-succinimidyl-3- (2- pyridyldithio) propionate (SPDP) .
- the total effective amount of the polypeptide in the inventive pharmaceutical composition can be administered to a subject as a single dose, or can be administered using a fractionated treatment protocol, in which the multiple doses are administered over a more prolonged period of time.
- the amount of the active ingredient in the composition containing the inventive polypeptide may vary depending on the use of the composition, but the active ingredient may be generally administered at an effective dose of O.l ⁇ g-lg several times daily.
- the effective dose of the polypeptide may vary depending on many factors, such as the age, body weight, health condition, sex, disease severity, diet and excretion of a subject in need of treatment, as well as administration time and administration route. In view of these factors, any person skilled in the art may determine an effective dose suitable for the above-described specific use of the inventive polypeptide.
- the inventive composition has no special limitations on its formulation, administration route and administration mode as long as it shows the effects of the present invention.
- the inventive polypeptide or polynucleotide encoding the polypeptide can be used in a method for inducing apoptosis of endothelial cell. Therefore, the present invention provides a method for inducing apoptosis of endothelial cell, comprising administering to a subject in need thereof an effective amount of the polypeptide or the polynucleotide encoding the polypeptide.
- the present invention provides a method for preventing or treating cancer, comprising administering to a subject in need thereof an effective amount of the polypeptide or the polynucleotide encoding the polypeptide.
- the cancers include, but are not limited to, breast cancer, rectal cancer, lung cancer, small -cell lung cancer, stomach cancer, liver cancer, blood cancer, bone cancer, pancreatic cancer, skin cancer, head or neck cancer, skin or intraocular melanoma, uterine carcinoma, ovarian cancer, colorectal cancer, cancer near the anus, colon cancer, oviduct carcinoma, endometrial carcinoma, cervical cancer, vaginal cancer, vulva carcinoma, Hodgkin's disease, esophagus cancer, small intestinal tumor, endocrine gland cancer, thyroid cancer, parathyroid cancer, adrenal cancer, soft-tissue sarcoma, uterine cancer, penis cancer, prostate cancer, chronic or acute leukemia, lymphocytic lymphoma, bladder cancer, kidney or urethra cancer, kidney cell carcinoma, kidney pelvis carcinoma, CNS tumor, primary CNS lymphoma, spinal tumor, brain stem glioma, and pituitary adenoma, and a combination of one or more thereof
- the present invention provides the polypeptide or the polynucleotide encoding the polypeptide for use as a medicament .
- the present invention provides use of the polypeptide or the polynucleotide encoding the polypeptide for preparation a pharmaceutical composition for treating cancer.
- the polypeptide or the polynucleotide encoding the polypeptide has the activity inhibiting cancer cell proliferation by inducing apoptosis of endothelial cell.
- the polypeptide or the polynucleotide encoding the polypeptide can be effectively used in inducing apoptosis of endothelial cell, or preventing or treating cancer.
- FIG.l is a schematic drawing of the AIMPl fragments of the present invention.
- FIG.2 shows the results of SDS-PAGE analysis for the AIMPl fragments of the present invention.
- FIG.3 is a picture showing the activity of inducing cell death of the AIMPl fragments of the present invention.
- FIG.4 is a graph showing the activity of inducing cell death of the AIMPl fragments of the present invention.
- FIG.5 is a graph showing the effect of the AIMPl fragments of the present invention for the activity of caspase-3.
- FIG.6 is a schematic drawing of the AIMPl- (101-192) fragments of the present invention.
- FIG.7 shows the result of electrophoresis for the AIMPl- (101-192) fragments of the present invention.
- FIG.8 is a picture showing the activity of inducing of cell death of the AIMPl- (101-192) fragments of the present invention.
- FIG.9 is a graph showing the measurement result for cell viability by MTT assay after the treatment of the AIMPl- (101-192) fragments of the present invention.
- FIG.10 is a graph showing the effect on the activity of caspase-3 of the AIMPl- (101-192) fragments of the present invention.
- FIG.11 is a graph showing analysis results for activity of endothelial cell apoptosis of the AIMPl- (101- 170)C161S mutant polypeptide of the present invention.
- FIG.12 is a graph showing analysis results for tumor cell anti-proliferation activity of the AIMPl- (101- 170) polypeptide of the present invention.
- FIG.13 is a graph showing analysis results for body weight loss after the treatment of the AIMPl- (101-170) polypeptide of the present invention.
- FIG.14 is a graph showing analysis results for tumor cell anti-proliferation activity of the AIMPl- (101- 170) polypeptide of the present invention in comparison with AIMPl full length protein.
- FIG.15 is a graph showing analysis results for body weight loss after the treatment of the AIMPl- (101-170) polypeptide of the present invention in comparison with AIMPl full length protein.
- An AIMPl consisting of 312 amino acids was constructed according to the method of Park et al.(Park S. G. et al . , J. Biol. Chem. , 277 :45243-45248 , 2002) .
- AIMPl- (1-192) SEQ ID NO: 2
- AIMPI- (6- 192) SEQ ID NO: 3
- AIMPl- (30-192) SEQ ID NO: 4
- AIMPl- (47-192) SEQ ID NO: 5
- AIMPl- (54-192) SEQ ID NO: 6
- AIMPl- (101-192) SEQ ID NO: 7
- AIMPl- (114-192 ) was constructed.
- Each of the fragments was synthesized by PCR using the cDNA of AIMPl(SEQ ID NO: 1) as a template with specific primer sets (see Table 1).
- the PCR reaction conditions were as follows: pre-denaturation of template DNA by heating at 95"C for 2min; and then 30 cycles at 95 ° C for 30 sec, 56 ° C for 30 sec and 72 ° C for lmin; followed by final extension at 72 ° C for 5min.
- Each of the PCR products was digested with EcdRl and Xhol and ligated into a pGEX4T3 vector(Amersham Biosciences) digested with the same restriction enzymes.
- E.coli BL2KDE3 was transformed with the vector and cultured to induce expression of the polypeptides.
- Each of the polypeptides was expressed as a GST-tag fusion protein and purified on GSH agarose gel. To remove lipopolysaccharide, protein solution was dialyzed through pyrogen-free buffer(1OmM potassium phosphate buffer, pH 6.0, 10OmM NaCl).
- AIMPI-C6-192XSEQ ID NO: 3 AIMP1-(3O-192)(SEQ ID NO: 4), AIMPH47- 192XSEQ ID NO: 5), AIMPl-(54-192)(SEQ ID NO: 6), AIMPH101-192)(SEQ ID NO:
- BAECs Bovine aorta endothelial cells
- enhanced green fluorescent protein(EGFP) were transfected into BAECs, and expressed for 24h.
- the transfected cells were treated with the fragments of the AIMPl(50nM) for 24h, and then cell death was determined by counting apoptotic cells using fluorescence microscopy. The percentage of apoptotic cells was determined by dividing the number of green cells with apoptotic morphology by the total number of green cells(see FIG.3 and 4).
- AIMPl-C1-312 AIMPl-C1-192
- AIMP1-C6-192 AIMP1-C30-192
- AIMP1-C47-192) AIMPl- (54-192)
- AIMPl-C101-192) of the deletion fragments of the AIMPl constructed in the ⁇ Example 1> could induce apoptosis of endothelial cell at high levels, but AIMPl-C114-192), AIMPl-(l-46), AIMPl-(l-53), AIMP1-C30-192) and AIMPl-C193-312) could not induce apoptosis.
- AIMPl especially AIMPl-(IOl-192)
- AIMPl-(IOl-192) might be a cell death-indueing domain on endothelial cells.
- BAECs(2x 10 6 ) were harvest and lysed with 300 ⁇ . of cell lysis buffer(20mM HEPES, pH 7.5, ImM dithiothreitol(DTT),
- FIG.5 was similar to that shown in FIG.3 and FIG.4. From these results, it was believed that the middle region of AIMPl, especially AIMPl-C101-192) might be a cell death-indueing domain on endothelial cell.
- the present inventors constructed fragments from the AIMPl-C101-192) by serially deleting C-terminal part of the
- the purified proteins were identified by SDS-PAGE and the results were shown in FIG.7.
- AIMPl- (101-192) SEQ ID NO: I
- AIMPl- (101-180) SEQ ID NO: 8
- AIMPl- (101-170) SEQ ID NO: 9
- AIMPl- (101-160) and AIMPl- (101-146) fragments were constructed.
- each of 5OnM of AIMPl fragments constructed in the ⁇ Example 3-l>, AIMPl protein and AIMPl- (101-192) constructed in the ⁇ Example 3-l> was treated on the BAECs for 24hr, respectively. Then MTT solution (5mg/m£) was added as much as 1/10 of the volume of cell culture solution and was reacted for lhr. Then, after the culture solution was entirely discarded, DMSO (200 ⁇ Jl) was added, absorbance was measured at 570 nm, and the results were shown in FIG.9.
- AIMPl protein, AIMPl- (101-192) , AIMPl- (101-180) and AIMPl- (101-170) could induce apoptosis of endothelial cell, but AIMPl- (101-160) and AIMPl- (101-146) could not induce apoptosis.
- the middle region of AIMPl, especially AIMPl- (101-170) might be a cell death-inducing domain on endothelial cell.
- the present inventors measured the effects of the fragments of AIMPl- (101-192) on caspase-3 activity by the same method as in the ⁇ Example 2-2>. Then the results were shown in FIG.10.
- AIMPl- (1-312) SEQ. ID NO: 1
- AIMPl- (101-192) SEQ . ID NO: 7
- AIMPl- (101-180) SEQ. ID NO: 8
- AIMPl-(IOl- 170) SEQ. ID NO: 9
- the middle region of AIMPl especially AIMPl-(IOl- 170) would be a cell death-inducing domain on endothelial cell. Consequently, it was found that the AIMPl- (101- 170) (SEQ. ID NO: 9) domain would be useful and applicable for anti-angiogenic and anti-tumor therapy.
- AIMPl- (101-170) mutant C161S point mutation in AIMPl- (101-170) polypeptide, which showed cell death inducing activity in the ⁇ Example 3>, was generated by PCR.
- the AIMPl- (101-170) mutant was synthesized by PCR using the cDNA of AIMPl as a template with the following primer set.
- reverse primer 5'-
- PCR reaction conditions were as follows: pre- denaturation of template DNA by heating at 92 ° C for 2min; and then 30 cycles at 92 "C for 30sec, 56 ° C for 30sec and 72 ° C for 20sec; followed by final extension at 72 ° C for
- the present inventor found that the AIMPl full length protein(SEQ. ID NO: 1) or AIMPl- (101-170) polypeptide (SEQ. ID NO: 9) lost endothelial cell death inducing activity in the absence of powerful reducing agent, DTT (Data not shown) .
- the AIMPl full length protein (10OnM) and AIMPl- (101-170) polypeptide (10 , 10OnM) constructed in the ⁇ Example 1> were purified in the presence of DTT, but the AIMPl- (101-170) C161S (10, 10OnM) constructed in the ⁇ Example 4-l>, in the absence of DTT. Then the purified products were added to BAECs, and the BAECs were cultured for 24hr. Then MTT assay was performed by the same method as in the ⁇ Example 3>, cell viability was measured and the results were shown in FIG.11. As shown in FIG.11, it was found that the AIMPl- (101-170) C161S (SEQ.
- AIMPl- (101-170) polypeptide SEQ. ID NO: 9
- the present inventors used a xenograft system (BALB/c-nu/nu mouse-MKN-45) .
- 5-week-old male BALB/c-nu/nu nude mice human tumor xenograft experiments
- the mice were housed in a pathogen-free barrier facility with ambient light controlled automatically to produce 12h light and dark cycles.
- the MKN-45 (human gastric adenocarcinoma) lines were obtained from the Cell Bank Facility, Korea Research Institute of Biotechnology (KRIBB) .
- the inventors injected human MKN-45 (gastric cancer) cells adjusted to 2 X 10 5 cells/m ⁇ , subcutaneously into the right scapular region of each mouse in a total volume of 50 ⁇ i of PBS and monitored the tumor growth. Tumor size was measured in three dimensions with calipers, and tumor volume was calculated as Length X Width X Depth X 1/2. When the tumor size was about 50mm 3 in volume, the mice were administered each of 10 ⁇ g/dose and 50/ig/dose of the AIMPl- (101-170) polypeptide constructed in the ⁇ Example 3-l> every day for 7 days and relative tumor volume (RTV) was calculated.
- RTV relative tumor volume
- the relative tumor volume (RTV) was calculated as Vi/Vo, where Vi is the tumor volume at any given time and Vo is the volume at the start of treatment.
- tumor growth inhibition data were analyzed by student' s t-test (p ⁇ 0.01), and the results were shown in FIG.12.
- the tumor volume increased about 34 fold in the control groups on the seventh day, whereas it increased only about 15 fold in the lO ⁇ g/dose AIMPl- (101-170) polypeptide group and about 5 fold in the 50 ⁇ g/dose AIMPl- (101-170) polypeptide group.
- the present inventors confirmed whether the body weight of the mice was lost. From a result, it was found that treatment of the AIMPl- (101-170) polypeptide did not induce a loss of body weight (see FIG.13).
- TGI tumor growth inhibition rate
- the AIMPl- (101-170) polypeptide had anti-tumor activity without inducing a loss of body weight, and would be useful for anti-tumor therapy.
- the present inventors confirmed whether body weight of the mice was lost, it was found that treating the protein did not induce a loss of body weight in any of the tested animals (see FIG.15).
- the lO ⁇ g/dose AIMPl- (101-170) polypeptide group showed a 58.75 % reduction of tumor volume compared to the control group and the 10/zg/dose AIMPl full length protein group showed a 24.75 % reduction. Accordingly, it was showed that the AIMPl- (101-170) polypeptide had more effective anti-tumor activity than the AIMPl full length protein.
- the polypeptide or the polynucleotide encoding the polypeptide has an activity of inducing apoptosis of endothelial cell, thus inhibiting cancer cell proliferation. Accordingly, the polypeptide or the polynucleotide encoding the polypeptide can be effectively used for inducing apoptosis of endothelial cell, or preventing or treating cancer.
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JP2009548159A JP2010526527A (en) | 2007-02-01 | 2008-02-01 | Novel polypeptide having antitumor activity |
AU2008211884A AU2008211884A1 (en) | 2007-02-01 | 2008-02-01 | Novel polypeptide having anti-tumor activity |
MX2009008270A MX2009008270A (en) | 2007-02-01 | 2008-02-01 | Novel polypeptide having anti-tumor activity. |
EP08712277A EP2121739A4 (en) | 2007-02-01 | 2008-02-01 | Novel polypeptide having anti-tumor activity |
KR1020097016040A KR20090111320A (en) | 2007-02-01 | 2008-02-01 | Novel polypeptide having anti-tumor activity |
CA002676640A CA2676640A1 (en) | 2007-02-01 | 2008-02-01 | Novel polypeptide having anti-tumor activity |
US12/854,843 US20110124582A1 (en) | 2007-02-01 | 2010-08-11 | Novel polypeptide having anti-tumor activity |
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US89870807P | 2007-02-01 | 2007-02-01 | |
US60/898,708 | 2007-02-01 |
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US12/854,843 Continuation US20110124582A1 (en) | 2007-02-01 | 2010-08-11 | Novel polypeptide having anti-tumor activity |
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EP (1) | EP2121739A4 (en) |
JP (1) | JP2010526527A (en) |
KR (1) | KR20090111320A (en) |
AU (1) | AU2008211884A1 (en) |
CA (1) | CA2676640A1 (en) |
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Cited By (5)
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EP2717913A2 (en) * | 2011-06-08 | 2014-04-16 | Indiana University Research and Technology Corporation | Monoclonal antibody and antigens for diagnosing and treating lung disease and injury |
US8835387B2 (en) | 2012-02-16 | 2014-09-16 | Atyr Pharma, Inc. | Histidyl-tRNA synthetases for treating autoimmune and inflammatory diseases |
US9422539B2 (en) | 2010-07-12 | 2016-08-23 | Atyr Pharma, Inc. | Innovative discovery of therapeutic, diagnostic, and antibody compositions related to protein fragments of histidyl-tRNA synthetases |
US9587235B2 (en) | 2013-03-15 | 2017-03-07 | Atyr Pharma, Inc. | Histidyl-tRNA synthetase-Fc conjugates |
US11767520B2 (en) | 2017-04-20 | 2023-09-26 | Atyr Pharma, Inc. | Compositions and methods for treating lung inflammation |
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KR100903984B1 (en) * | 2005-02-01 | 2009-06-25 | 주식회사 이매진 | Cosmetic composition for preventing skin aging, treating wrinkled skin, promoting smoothing and firming of the skin comprising AIMP1 polypeptide or fragments thereof as an active ingredient |
JP5002603B2 (en) * | 2006-01-23 | 2012-08-15 | イマジェネ カンパニー リミテッド | Novel peptides and uses thereof |
WO2010099477A2 (en) | 2009-02-27 | 2010-09-02 | Atyr Pharma, Inc. | Polypeptide structural motifs associated with cell signaling activity |
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US9816084B2 (en) | 2011-12-06 | 2017-11-14 | Atyr Pharma, Inc. | Aspartyl-tRNA synthetases |
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KR102292069B1 (en) * | 2020-10-19 | 2021-08-20 | 대한민국 | Pharmaceutical composition for cancer treatment comprising antimicrobial peptide derived from rock bream phospholipase as an active ingredient |
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US9637730B2 (en) | 2010-07-12 | 2017-05-02 | Atyr Pharma, Inc. | Innovative discovery of therapeutic, diagnostic, and antibody compositions related to protein fragments of histidyl-tRNA synthetases |
US10450371B2 (en) | 2011-06-08 | 2019-10-22 | Indiana University Research And Technology Corporation | Monoclonal antibody and antigens for diagnosing and treating lung disease and injury |
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US8835387B2 (en) | 2012-02-16 | 2014-09-16 | Atyr Pharma, Inc. | Histidyl-tRNA synthetases for treating autoimmune and inflammatory diseases |
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US10093915B2 (en) | 2013-03-15 | 2018-10-09 | Atyr Pharma Inc. | Histidyl-tRNA synthetase-Fc conjugates |
US10472618B2 (en) | 2013-03-15 | 2019-11-12 | Atyr Pharma, Inc. | Histidyl-tRNA synthetase-Fc conjugates |
US10711260B2 (en) | 2013-03-15 | 2020-07-14 | Atyr Pharma, Inc. | Histidyl-tRNA synthetase-Fc conjugates |
US11072787B2 (en) | 2013-03-15 | 2021-07-27 | Atyr Pharma Inc. | Histidyl-tRNA synthetase-Fc conjugates |
US11767520B2 (en) | 2017-04-20 | 2023-09-26 | Atyr Pharma, Inc. | Compositions and methods for treating lung inflammation |
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AU2008211884A1 (en) | 2008-08-07 |
CA2676640A1 (en) | 2008-08-07 |
JP2010526527A (en) | 2010-08-05 |
EP2121739A1 (en) | 2009-11-25 |
MX2009008270A (en) | 2009-08-12 |
EP2121739A4 (en) | 2010-03-10 |
KR20090111320A (en) | 2009-10-26 |
US20110124582A1 (en) | 2011-05-26 |
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