WO1996032412A1 - PEPTIDE SUPPRIMANT LA PHOSPHORYLATION IxB$g(a) - Google Patents
PEPTIDE SUPPRIMANT LA PHOSPHORYLATION IxB$g(a) Download PDFInfo
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- WO1996032412A1 WO1996032412A1 PCT/JP1996/001028 JP9601028W WO9632412A1 WO 1996032412 A1 WO1996032412 A1 WO 1996032412A1 JP 9601028 W JP9601028 W JP 9601028W WO 9632412 A1 WO9632412 A1 WO 9632412A1
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- glu
- peptide
- ser
- amino acid
- asp
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- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000001540 sodium lactate Substances 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 239000002511 suppository base Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 201000000596 systemic lupus erythematosus Diseases 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 239000012929 tonicity agent Substances 0.000 description 1
- 230000002103 transcriptional effect Effects 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003871 white petrolatum Substances 0.000 description 1
- 210000005253 yeast cell Anatomy 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
- C12N9/1205—Phosphotransferases with an alcohol group as acceptor (2.7.1), e.g. protein kinases
-
- 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
- C07K14/4703—Inhibitors; Suppressors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
Definitions
- the present invention relates to peptides that can suppress phosphorylation of IcB, and more particularly, to peptides useful as anti-inflammatory agents and immunosuppressants.
- HIV human immunodeficiency virus
- B a region consisting mainly of 10 bases, called B, was part of the enhancer. It was found to promote transcriptional activity of the gene. Binding of this region to the transcription regulatory protein, nuclear factor ⁇ B (NF ⁇ factor), promotes transcription of the gene downstream of the B region (Gilmore, T & Morin PJ Trends in Genetics (1993) 9, 427-432) o
- NF / B is a heterodimeric or homodimeric transcription factor consisting of two subunits (p50, p65) and is induced by various stimulations. To date, it has been presumed to be involved in the transcriptional activation of more than 20 genes (Baeuerle, PA Biochim. Biophys. Acta (1991) 1072, 63-80).
- NF / c B is available from sites such as Interlokin_8, Interlokin-1S, Tumor Loan Death Factor (TNF)-Interleukin-6, Interleukin-2, etc.
- cycloxygenase-2 (Ku jububu), an enzyme involved in the synthesis of metabolites of the inflammatory mediator arachidonic acid cascade , DA et al., J. Biol. Chem. (1991) 266, 12866-12872) or 5-lipoxygenase (5-1 ipoxygenase) (Hosh iko, S. et al., Pro Nat. 1. Acad. Sci. USA (1990) 87, 9073-9077, Chopra, A. et al.,
- NF / cB binds to protein 1cB, which suppresses the function of NF ⁇ B, and its activation is suppressed (Inoue, Jl. Et al., Proc. Natl. Acad. Sci. USA (1992) 89, 4333-4337, Hatada, E. et al., EMBO (1993) 12, 2781-2788).
- IKB does not only suppress the binding of NF / cB to DNA, but also suppresses the translocation of NF / cB into the nucleus (Baeuerle, PA & Baltimore, B. Science (1988) 242, 540-546 ). It has been shown that I / cB ⁇ is phosphorylated in response to a stimulus such as TNFa.
- NF / cB translocates into the nucleus and binds to the binding site on DNA, The transcription of the downstream gene is activated (Baeuerle, PA Biochim. Biophys. Acta (1991) 1072, 63-80).
- NFcB the above-mentioned mechanisms are known, but enzymes or sites that phosphorylate NFcB and I ⁇ B ⁇ in vivo are described in more detail. The mechanism was not disclosed. Disclosure of the invention
- steroid agents have been used as anti-inflammatory agents. Steroids have the risk of inducing susceptibility to infection, diabetes, and cataracts as side effects. Nucleic acid synthesis inhibitors are used as immunosuppressants. Nucleic acid synthesis inhibitors have side effects such as suppression of bone marrow function, liver damage, infectivity, and digestive disorders. Therefore, development of a drug having no such side effects has been desired.
- the present invention provides a peptide having an amino acid sequence corresponding to the phosphorylation site of Ia, and a pharmacologically acceptable salt thereof.
- Figure 1 shows a schematic representation of the plasmid pGST-MD containing the glutathione-S trans-ferase (GST) gene into which DNA encoding full-length human 1 1Ba has been introduced. is there.
- GST glutathione-S trans-ferase
- FIG. 2 is a diagram schematically showing fusion proteins of various constructed partial deletion 1 / cBa mutants and GST.
- FIG. 3 is a diagram schematically showing the amino acid sequence of the acidic region present at the C-terminus of the mutant having I / cBa and substitution 1 / cB. Each symbol is an amino acid represented by a single letter code.
- Figure 4 shows the phosphorylation of each fusion protein with GST of the full length 1Ba (wt), mutant de9, del-10, del-1, del-5 and del-4 in the solid phase. It is an electrophoresis diagram examined by Trocainace Atsushi o
- FIG. 2 is a diagram of electrophoresis examined by vitro kinase assay.
- Figure 7 shows the degree of phosphorylation of each amino acid-substituted peptide by the partially purified 1 / cB ⁇ phosphatase (Kinase). Relative oxidation (%) is shown for each peptide-added group when the positive control (full-length I / cB ⁇ -added group) is 1003 ⁇ 4.
- FIG. 8 shows the peptide at the phosphorylation site of I ⁇ (I / cB substrate), the casein kinase substrate (CK11 substrate), and the mapkinase substrate (MAPK).
- FIG. 6 is a diagram showing gel shift at the time of adding a substrate).
- the phosphorylation site of 1 / c B is the sequence-Ser (288) -Tyr (289) -Asp (290) of the amino acid sequence of the protein.
- -It is estimated to be Ser (288), Thr (291) and Ser (293) in Thr (291) -Glu (292) -Ser (293) -Glu (294)-. Therefore, the present invention has an amino acid sequence corresponding to the phosphorylation site of I ⁇ B ⁇ ,
- the peptide capable of inhibiting the phosphorylation of ⁇ is composed of an amino acid sequence Ser-Tyr-Asp-Thr-Glu-Ser (referred to as “core amino acid sequence”), Alternatively, it comprises the core amino acid sequence.
- amino acid sequence is extended by an amino acid or a peptide. It is a thing.
- Amino acids or peptides that extend the N-terminus and the C- or C-terminus are those whose peptides inhibit the phosphorylation of I / cB ⁇ . Any amino acid or peptide may be used.
- the amino acid or peptide extending the -terminal side and / or the C-terminal side of the core amino acid sequence is one amino acid. In the sequence, it is adjacent to the core amino acid sequence. This means that the peptide consisting of the core amino acid sequence and the terminal amino acid or amino acid sequence extending it forms part of the amino acid sequence of IcB ⁇ . It means that you are doing.
- the amino acid sequence within 1 / c ⁇ is Met (279) -Leu (280)-Pro (281) -Glu (282)- Ser (283) -Glu (284) -Asp (285) -Glu (286) -Glu (287) -Ser (288) -Tyr (289) -Asp (290) -Thr (291) -Glu (292) -Ser (293) -Glu (294) -Phe (295) -Thr (296) -Glu (297) -Phe (298) -Thr (299) -Glu (300) -Asp (301) -Glu (302) -Leu (303) is a sequence consisting of a part of this sequence and having the following N-terminal and C-terminal.
- the peptides having the amino acid sequence as described above include, for example, the following peptides.
- a peptide containing the amino acid sequence Ser-Tyr-Asp-Thr-Glu-Ser (SEQ ID NO: 4)
- the peptide of the present invention has such advantages that as its size becomes shorter, immunogenicity in a human body decreases, and the peptide becomes more difficult to be degraded by in vivo protease.
- Met is methionine
- Leu is leucine
- Pro proline
- Glu is glutamic acid
- Ser is serine
- Asp is aspartic acid
- Tyr is tyrosin.
- Thr is threonine
- Phe is fenalara
- the amino acid is in the L-form.
- the peptide of the present invention may have substitution, deletion and no or insertion of the above amino acid sequence as long as it can suppress phosphorylation of the amino acid.
- Substitutions, deletions and Zs or insertions are subject to amino acids Tyr, Asp and Glu which are not subject to phosphorylation in the core sequence. Is one or two. It is preferred, however, that no alterations have been made within the core sequence by substitutions, deletions and modifications or insertions.
- the number of amino acids that can be changed by substitution, deletion, Z or insertion in a portion other than the core sequence is one or more, and preferably, all but the core portion of the peptide. It is less than half the number of amino acids, more preferably less than 303 ⁇ 4, more preferably less than 20X, for example less than 10X.
- modification refers to modification of the structure of the amino acid itself constituting the peptide, crosslinking between adjacent or non-adjacent amino acid residues in the peptide, modification of the peptide bond, Modification of peptide basic skeleton, introduction of side chain functional group, cyclization, introduction of spacer, etc. (Giannis, A. & Kolter, T. Angrew. Chem. Int. Ed. Engl. (1993) 32, 1244-1267).
- the salt of the above peptide may be any of pharmacologically acceptable acid addition salts and base addition salts.
- the acid (inorganic acid and organic acid) addition salts include inorganic acid addition salts such as hydrochloride, hydrobromide, sulfate, and nitrate, acetate, benzoate, and maleate. , Fumarate, succinate, tartrate, citrate, oxalate, metasulfonate, toluenesulfonate, aspartate, glutamate, etc.
- Bases include, for example, sodium salts, potassium salts, calcium salts. Includes inorganic base addition salts such as platinum salt, and organic base addition salts such as pyridine salt, triethylamine salt, and lysine salt.
- the peptide of the present invention can be used by a method generally used for peptide synthesis, for example, a liquid phase method or a solid phase method (Peptide and Protein Drug Delivery, Shiee, VH, Ed., Marcel Dekker , Inc., U.S.A., Pharmaceutical Biotechnology, Borchardt, RT et al., Ed., Prenum Press, New York and London) 0
- a method generally used for peptide synthesis for example, a liquid phase method or a solid phase method
- Peptide and Protein Drug Delivery Shiee, VH, Ed., Marcel Dekker , Inc., U.S.A., Pharmaceutical Biotechnology, Borchardt, RT et al., Ed., Prenum Press, New York and London
- Two types of fragments that are bisected at any position of peptide bonds using these methods A raw material having a reactive carboxyl group corresponding to one of the above and a raw material having a reactive amino group corresponding to the other fragment are conden
- protecting groups Functional groups that should not take part in the reaction in this reaction step are protected by protecting groups.
- the amino-protecting group include benzyloxycarbonyl, tributyloxycarbonyl, p-biphenylisopropoxypyroxycarbonyl, 9-fluorenylmethyloxycarbonyl and the like.
- the carboxyl group-protecting group include, for example, groups capable of forming an alkyl ester and a benzyl ester.
- the C-terminal carboxyl group is a chloromethyl resin, an oxymethyl resin, or the like. It is bound to carriers such as P-alkoxybenzyl alcohol resin.
- an N-protected amino acid active ester or a peptide active ester can be used in the presence of a condensing agent such as carbodiimide.
- a condensing agent such as carbodiimide.
- the peptides of the present invention can be produced using genetic engineering techniques (see Peptide and Protein Drug Delivery and
- an oligonucleotide which encodes a desired amino acid sequence is synthesized by a conventional method. Then, after assembling by PCR or the like, this is introduced into an appropriate expression vector. The appropriate host cells are then transformed with the expression vector.
- the nucleotide sequence encoding the peptide of the present invention contains a FLAG peptide (see WO88-04692).
- ⁇ Human immunoglobulin constant region (W094-28027, Ellison, J. et al., DNA (1981) 1, 11-18, Krawinkel, U. et al., EMBO J. (1982) 1, 403 -407 etc.) may be added and expressed.
- any expression system eukaryotic cells, eg, animal cells, eg, established mammalian cell lines, fungal cells, and yeast cells, and prokaryotic cells, eg, bacterial cells, eg, E. coli, Cells and the like can be used.
- the peptides of the present invention are expressed in mammalian cells, eg, COS cells, CH0 cells.
- conventional promoters useful for expression in mammalian cells can be used.
- the human cytomegalovirus immediate early promoter promoter can be used.
- promoters for gene expression in mammalian cells include letrovirus, poliovirus, adenovirus, simian virus 40 (SV40) and the like.
- SV40 simian virus 40
- a promoter derived from a mammalian cell such as the virus promoter of the human polypeptide such as the human polypeptide promoter-la (HEF-1a). I just need.
- the expression vector was selected as a phosphotransferase ⁇ ⁇ ⁇ (3 ') 11 or 1 (neo) gene, thymidine kinase (TK) gene, E. coli, as a selection marker. It can contain xanthinguanine phosphoribosyltransferase (Ecogpt) gene, dihydrofolate reductase (DHFR) gene, etc.
- the peptide of the present invention is purified according to a usual method. For example, ion exchange chromatography, reversed-phase liquid chromatography, affinity chromatography, and the like can be mentioned.
- the amino acid sequence of the peptide thus obtained can be identified by sequence analysis using a protein sequencer and acid species analysis using an amino acid analyzer.
- the peptide of the present invention comprises a phosphorylation site such as IcB, and may have amino acid substitutions, deletions and insertions as long as the phosphorylation inhibitory action such as 1cB is maintained.
- a phosphorylation site such as IcB
- a lipid-soluble substance such as a steroid compound or a compound having a benzene ring
- cell membrane permeability can be imparted.
- the peptide of the present invention can be used by encapsulating it in a ribosome for permeation of the peptide of the present invention into cell membranes (see Peptide and Protein Drug Delivery, Pharmaceutical Biotechnology described above).
- an oligonucleotide encoding the amino acid sequence of the peptide of the present invention is synthesized by a conventional method, and is introduced into an appropriate expression vector capable of expressing the same.
- peptide of the present invention in the living body (W094-27643, W092-20316, JP-A-6-303987, US5166320, W092-19749, WO92 -20316 etc.).
- gene therapy using the peptide of the present invention ex vivo is also possible. That is, blood cells such as lymphocytes are removed from a living body, the cells are transformed with the above expression vector, and the transformed cells are returned to the living body. (See JP-A-6-329559).
- the peptide of the present invention has an inhibitory effect on phosphorylation, and is considered to suppress the expression of inflammatory site force genes, inflammatory mediator genes, and release of the gene products.
- the peptide of the present invention targets the suppression of the phosphorylation of I ⁇ present in cells and directs the suppression of the activation of NF / cB, so that the effect is specific. Presumed.
- the peptide of the present invention can be used as an anti-inflammatory agent to produce various inflammatory diseases such as multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, psoriasis, gout, nephritis, and inflammation.
- various inflammatory diseases such as multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, psoriasis, gout, nephritis, and inflammation.
- Colitis myocardial infarction, asthma, Mediterranean fever, Crohn's disease, adult respiratory distress syndrome, emphysema, cystic fibrosis, irritable pneumonia, tuberculous pleural effusion, cancerous pleural effusion, sarcoidosis, idiopathic pulmonary fibrosis, diffuse It is effective for the treatment of pancreatic bronchiolitis, esophageal cancer surgery, ischemia-reperfusion injury, etc.
- the peptide of the present invention as an immunosuppressant, it is effective in suppressing rejection during bone marrow transplantation, organ transplantation and the like.
- the administration route of the peptide of the present invention includes oral administration and parenteral administration. Either one may be used, but parenteral administration is particularly preferred. Parenteral administration includes injection, rectal administration, transdermal administration, and pulmonary administration. The dose of the peptide of the present invention varies depending on the administration method, patient's symptoms, age, etc.
- the usual daily dose of 0.001-1000 mg, preferably 0.01-10 mg, can be administered in 1 to 4 divided doses per day.
- the peptide of the present invention is usually administered as a preparation prepared by mixing with a carrier and excipients for the preparation (Remington's Pharmaceutical Science, latest edition, Mark Publishing Company, Easton, USA ).
- a carrier and excipients for the preparation substances that are commonly used in the field of pharmaceutical preparations and do not react with the peptide of the present invention are used.
- the carriers and excipients for the preparation substances that are commonly used in the field of pharmaceutical preparations and do not react with the peptide of the present invention are used.
- hydrochloric acid, sodium hydroxide, sodium lactate, an emulsion, monohydrogen phosphate may be used, if necessary.
- a pH adjuster such as sodium and sodium dihydrogen phosphate
- a tonicity agent such as sodium chloride and glucose
- lecithin, polysorbitol 80, polyoxyethylene hardened castor oil and the like can be added and emulsified in water to give an injectable emulsion.
- a suppository base such as cocoa butter, a fatty acid tri, di, monoglyceride, or polyethylene glycol, in addition to the peptide of the present invention, which is an active ingredient, May be dissolved by humidification and poured into a mold to cool, or may be covered with a gelatin film dissolved in polyethylene glycol, soybean oil, or the like.
- transdermal preparation In order to manufacture a transdermal preparation, if necessary, in addition to the active ingredient peptide of the present invention, white petrolatum, beeswax, liquid paraffin, polyethylene glycol, etc. Or humidify and knead to make an ointment After kneading with a pressure-sensitive adhesive such as rosin, rosin or alkyl acrylate polymer, it is spread on a non-woven fabric such as polyethylene to form a tape.
- a pressure-sensitive adhesive such as rosin, rosin or alkyl acrylate polymer
- the peptide of the present invention which is an active ingredient, is dissolved or dispersed in a usual propellant and filled in a pressure-resistant container to prepare an aerosol.
- a sustained-release preparation can be prepared by using known ribosome technology and the like.
- the above-mentioned preparations may contain other components that are effective in treating the target disease.
- LPS lipopolysaccharide
- the obtained total RNA was designated as type I, and the above primers GMD5 and GMD3 were ffl-reduced to obtain a reverse transcriptase (reverse transcriptase).
- the PCR (polymerase chain reacton) method was used to obtain full-length human IcB cDNA.
- the obtained full-length human 1cBa cDNA was converted to a plasmid vector PGENT2 (Gurakami, S., et al., J. Biol. Che.) Containing a glutathione-S-transferase (GST) gene.
- PGENT2 Guardami, S., et al., J. Biol. Che.
- FIG. 1 shows a schematic diagram of the plasmid pGST-MD.
- DNAs encoding the fusion proteins of GST and the six types of partial deletion mutants of B ⁇ were constructed. Each primer has a nucleotide sequence corresponding to each deletion site.
- the primers GMD5 (SEQ ID NO: 5) and GMD6 (SEQ ID NO: 7) were used to bind to the DNA encoding the mutant de1 consisting of amino acid 1-242 of human I ⁇ , respectively. Designed to define the 3 'side.
- the primer GMD5 (SEQ ID NO: 5) and the primer GMD7 (SEQ ID NO: 8) are located on the 5 'side of each DNA encoding the mutant de 2 consisting of the amino acid 1-181 of human I ⁇ B ⁇ . And designed to define the 3 'side.
- Primer GMD52 (SEQ ID NO: 9) and primer GMD3 (SEQ ID NO: 6) were used to encode a DNA encoding a mutant de4 consisting of amino acid 73 (1st ankirin repeat) -317 of human 1 ⁇ - ⁇ . It was designed to define the 5 'and 3' sides, respectively.
- the primer GMD53 (SEQ ID NO: 10) and the primer GMD3 (SEQ ID NO: 6) are DNAs encoding the mutant deto 5 consisting of human IB human amino acid 182 (3rd ankirin repeat) -317. Each was designed to define the 5 'and 3' sides.
- Primer GMD5 (SEQ ID NO: 5) and primer GMD9 (SEQ ID NO: 11) are the 5'-side and the 5'-side of the DNA encoding the mutant de 9 consisting of the amino acid 1-295 of human 1B, respectively. Designed to define the 3 'side.
- Each primer was designed so that a restriction enzyme cleavage site by EcoR I or BamHI was introduced on the 5 'side.
- PCR was performed using the respective primer pairs defining the 5 ′ and 3 ′ sides.
- DNAs encoding the obtained mutants were introduced into EcoRl and BamHl cleavage sites of plasmid vector pGENT2.
- the nucleotide sequence of the cDNA of each mutant was confirmed using the method of Sanger, F. et al.
- Figure 2 schematically shows the structure of each mutant.
- Seran at position 283, serine at position 288, threonine at position 291, serine at position 293, threonine at position 296, and threonine at position 298 in the C-terminal acidic region are all substituted with alanine I / c ⁇
- An animal cell expression vector pRC / CMV (Ernst, M. ⁇ , et al., Mol. Cell. Biol. (1995) 872-882) containing DNA encoding ⁇ - mtK. Then, PCR was performed using primers GMD5 and GMD3 specific to the base codons near the start codon and the stop codon of iBa cDNA.
- FIG. 3 shows a schematic diagram of the acidic region of I c Ba -mutant K.
- Each of the expression vectors obtained in (1), (2) and (3) was expressed in Escherichia coli to obtain a GST-I ⁇ fusion protein.
- E. coli JM109 was transformed with each expression vector, and then cultured in a 2 ⁇ ⁇ culture medium (manufactured by Wako Pure Chemical Industries) containing 50 g / ml ampicillin.
- ImM isopropyl thiogalactoside IPTG, manufactured by Wako Pure Chemical Industries was added to the culture solution, stimulated, and cells were harvested 2-3 hours later.
- the supernatant was further centrifuged at 18000 xg for 35 minutes at 4 ° C, and the supernatant was dialyzed against 20 mM Tris buffer (pH 7.5) at 4 ° C for 4 hours to obtain a crude fraction.
- Red-A Sepharose column AMIC0N, bed volume 5 ml
- NaCl such as 0 M, 0.5 M and 2 M
- the concentration was increased stepwise and eluted and separated.
- the fraction eluted with 2M NaCl was dialyzed against 20 mM Tris buffer (pH 7.5) at 4 ° C for 4 hours.
- Dimethylaminoethyl (DEAE) equilibrated with 20 mM Tris buffer (pH 7.5) 0M, 0.1M, 0.25M in DEAE-Sephacel column, Pharmacia, bed volume 20ral , 0.5M, 2M, etc., the NaCl concentration was increased stepwise and eluted and separated. The fraction eluted with 0.25 M NaCl was diluted with 20 mM Tris buffer (pH 7.5) 4. C. After dialysis for 4 hours, elution was performed at a rate of 1 ml / min by DEAE-HPLC (Bio Gel DEAE-5PW, Bio Rad) equilibrated with 20 mM Tris buffer ( ⁇ 7.5).
- DEAE-HPLC Bio Gel DEAE-5PW, Bio Rad
- a linear concentration gradient of 0-0.5M NaCl was applied from 10 minutes to 70 minutes after the start of elution, and fractionation was performed in 2 ml portions.
- the activity of the obtained kinase was determined by the in vitro kinase assay in a solid phase using glutathione sepharose to which GST-I ⁇ B ⁇ was bound (in vitro kinase assay, see Example 1 (1)).
- the amount of protein was measured by using Coomassie Protein Reagent (PIERCE), and using serum albumin (BSA) as a standard.
- PIERCE Coomassie Protein Reagent
- BSA serum albumin
- the phosphorylation activity against o to 1 mm was measured by Invitrokine Atsushi.
- Each fusion protein and glutathione Sepharose beads (Pharmacia) prepared in Reference Example 1 were added at 4 ° C for 2 hours.
- ICB is not generated due to the presence of a phosphorylation site in the region where the amino acid sequence of mutant de10 and de9 differs, and the amino acid substitution present in the substitution mutant mtK. Is no longer susceptible to phosphorylation.
- a peptide at the I / cB ⁇ phosphorylation site having the amino acid sequence of SEQ ID NO: 1 was synthesized using a peptide synthesizer and purified by reverse-phase HPLC. The sequence was confirmed with an amino acid analyzer. Using this peptide,
- the phosphorylation activity of I ⁇ B ⁇ was measured.
- the “/ cBa” phosphorylation inhibitory peptide (SEQ ID NO: 1) created in Example 1 (2) was used.
- the in vitro kinase assay was performed using a peptide in which one amino acid residue was substituted.
- Unstimulated THP-1 cells were cultured under the conditions described in Test Example 2. According to the method of Sado wski, H. B. et al., (Nature (1993) 362, 79-83), a cytoplasmic fraction and a cell membrane-rich fraction were prepared from THP-1 cells. Both fractions of each 20 / were combined and added with 15 nM 1B a phosphorylation site peptide, 10 mM ATP and 20 g / ml LPS, and stimulated at 30 ° C for 10 minutes.o
- Figure 8 shows the results of gel shift atssie.
- the phosphorylation of 1 cB ⁇ was suppressed, resulting in NF / cB No activation was observed.
- Fig. 9 shows the results of analysis and quantification using an image analyzer. In the group to which the peptide at the I- ⁇ -phosphoryl oxidation site was added, the activation of NF / c B was clearly suppressed.
- inflammatory diseases such as multiple sclerosis and systemic erythematosus, inflammatory cytokines such as rejection during bone marrow transplantation and organ transplantation, and inflammatory mediators are involved.
- an anti-inflammatory agent and an immunosuppressant which are effective for treating diseases.
- the anti-inflammatory agent and the immunosuppressive agent provided by the present invention are transcribed by NF / cB by inhibiting the phosphorylation of IcB ⁇ by a peptide or a salt thereof contained as an active ingredient. By administering this to a patient with the above-mentioned disease to inhibit the activating effect, the disease can be alleviated.
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
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Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/930,605 US5981486A (en) | 1995-04-13 | 1996-04-12 | Peptide suppressing IκBα phosphorylation |
AU52895/96A AU5289596A (en) | 1995-04-13 | 1996-04-12 | Peptide suppressing ixbalpha phosphorylation |
EP96909371A EP0867448A4 (en) | 1995-04-13 | 1996-04-12 | PEPTID which suppresses the 1xBalpha PHOSPHORY READING |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP11103395 | 1995-04-13 | ||
JP7/111033 | 1995-04-13 |
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WO1996032412A1 true WO1996032412A1 (fr) | 1996-10-17 |
Family
ID=14550708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001028 WO1996032412A1 (fr) | 1995-04-13 | 1996-04-12 | PEPTIDE SUPPRIMANT LA PHOSPHORYLATION IxB$g(a) |
Country Status (4)
Country | Link |
---|---|
US (1) | US5981486A (ja) |
EP (1) | EP0867448A4 (ja) |
AU (1) | AU5289596A (ja) |
WO (1) | WO1996032412A1 (ja) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1138692A1 (en) | 2000-03-29 | 2001-10-04 | Erasmus Universiteit Rotterdam | Fragments of human chorionic gonadotropin (hcg) as immunoregulator |
US8680059B2 (en) * | 1998-05-20 | 2014-03-25 | Biotempt B.V. | Oligopeptide acetate and formulations thereof |
US20050227925A1 (en) * | 2004-04-08 | 2005-10-13 | Robbert Benner | Compositions capable of reducing elevated blood urea concentration |
US20040202645A1 (en) * | 2003-04-08 | 2004-10-14 | Khan Nisar Ahmed | Administration of gene-regulatory peptides |
US6921751B1 (en) * | 1998-05-20 | 2005-07-26 | Erasmus Universiteit Rotterdam | Immunoregulator |
US20030220258A1 (en) | 2001-12-21 | 2003-11-27 | Robbert Benner | Treatment of ischemic events |
US6844315B2 (en) | 1998-05-20 | 2005-01-18 | Erasmus Universiteit Rotterdam | Immunoregulator |
EP1300418A1 (en) * | 2001-10-04 | 2003-04-09 | Erasmus Universiteit Rotterdam | Gene regulation by oligopeptides |
US7358330B2 (en) * | 2001-03-29 | 2008-04-15 | Biotempt B.V. | Immunoregulatory compositions |
US7560433B2 (en) | 2001-12-21 | 2009-07-14 | Biotempt B.V. | Treatment of multiple sclerosis (MS) |
US20030220260A1 (en) * | 2001-12-21 | 2003-11-27 | Khan Nisar Ahmed | Peptide compositions |
US20030220261A1 (en) * | 2001-12-21 | 2003-11-27 | Khan Nisar Ahmed | Treatment of iatrogenic disease |
US20040013661A1 (en) * | 2001-12-21 | 2004-01-22 | Gert Wensvoort | Stratification |
US7786084B2 (en) * | 2001-12-21 | 2010-08-31 | Biotempt B.V. | Treatment of burns |
US20030224995A1 (en) * | 2001-12-21 | 2003-12-04 | Khan Nisar Ahmed | Treatment of burns |
US20080318871A1 (en) * | 2001-12-21 | 2008-12-25 | Khan Nisar A | Treatment of neurological disorders |
US7501391B2 (en) * | 2001-12-21 | 2009-03-10 | Biotempt B.V. | Treatment of transplant survival |
US20080242837A1 (en) * | 2001-12-21 | 2008-10-02 | Khan Nisar A | Peptide compositions |
US20030220257A1 (en) * | 2001-12-21 | 2003-11-27 | Robbert Benner | Treatment of trauma |
US20090227505A1 (en) * | 2004-01-07 | 2009-09-10 | Biotempt B.V. | Methods and uses for protein breakdown products |
WO2007004869A2 (en) * | 2005-07-05 | 2007-01-11 | Biotempt B.V. | Treatment of tumors |
EP1864692A1 (en) * | 2006-06-07 | 2007-12-12 | Biotempt B.V. | Use of peptides for the control of radiation injury |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06209778A (ja) * | 1992-09-23 | 1994-08-02 | F Hoffmann La Roche Ag | NF−κBアンチセンスポリヌクレオチド |
JPH06508029A (ja) * | 1991-05-17 | 1994-09-14 | カイロン コーポレイション | NF−↓kB転写活性化物質のインヒビター及びその使用 |
CA2131587A1 (en) * | 1993-09-07 | 1995-03-08 | Yinon Ben-Neriah | Method for regulation of nf-kb |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9222931D0 (en) * | 1992-11-02 | 1992-12-16 | Sandoz Ltd | Organic compounds |
EP0779361A3 (en) * | 1995-12-15 | 1999-11-10 | F. Hoffmann-La Roche Ag | Truncated form of inhibitory kappa B protein (1kB), recombinant production and uses thereof |
CA2192738A1 (en) * | 1995-12-15 | 1997-06-16 | Gary Allen Peltz | Truncated form of inhibitory kappa b protein (lkb), recombinant production and uses thereof |
AU1959497A (en) * | 1996-02-23 | 1997-09-10 | J. David Gladstone Institutes, The | Method for inhibiting nf-$g(k)b activation |
-
1996
- 1996-04-12 EP EP96909371A patent/EP0867448A4/en not_active Withdrawn
- 1996-04-12 US US08/930,605 patent/US5981486A/en not_active Expired - Fee Related
- 1996-04-12 WO PCT/JP1996/001028 patent/WO1996032412A1/ja not_active Application Discontinuation
- 1996-04-12 AU AU52895/96A patent/AU5289596A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06508029A (ja) * | 1991-05-17 | 1994-09-14 | カイロン コーポレイション | NF−↓kB転写活性化物質のインヒビター及びその使用 |
JPH06209778A (ja) * | 1992-09-23 | 1994-08-02 | F Hoffmann La Roche Ag | NF−κBアンチセンスポリヌクレオチド |
CA2131587A1 (en) * | 1993-09-07 | 1995-03-08 | Yinon Ben-Neriah | Method for regulation of nf-kb |
Also Published As
Publication number | Publication date |
---|---|
EP0867448A1 (en) | 1998-09-30 |
US5981486A (en) | 1999-11-09 |
AU5289596A (en) | 1996-10-30 |
EP0867448A4 (en) | 2000-04-26 |
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