WO1996001274A1 - NEUE hIL-4-MUTANTENPROTEINE ALS ANTAGONISTEN ODER PARTIELLE AGONISTEN DES HUMANEN INTERLEUKIN 4 - Google Patents
NEUE hIL-4-MUTANTENPROTEINE ALS ANTAGONISTEN ODER PARTIELLE AGONISTEN DES HUMANEN INTERLEUKIN 4 Download PDFInfo
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- WO1996001274A1 WO1996001274A1 PCT/EP1995/002358 EP9502358W WO9601274A1 WO 1996001274 A1 WO1996001274 A1 WO 1996001274A1 EP 9502358 W EP9502358 W EP 9502358W WO 9601274 A1 WO9601274 A1 WO 9601274A1
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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
- C07K14/52—Cytokines; Lymphokines; Interferons
- C07K14/54—Interleukins [IL]
- C07K14/5406—IL-4
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P11/06—Antiasthmatics
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- A61P3/06—Antihyperlipidemics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61P37/00—Drugs for immunological or allergic disorders
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P37/08—Antiallergic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- New hIL-4 mutant proteins as antagonists or partial agonists of human interleukin 4
- the present invention relates to new hIL-4 mutant proteins, processes for their preparation and their use as medicaments, in particular in the case of excessive misguided immune reactions and autoimmune diseases.
- PCT WO 93/10235 already discloses therapeutic agents which are or contain antagonists or partial agonists of hIL-4, the antagonists or partial agonists being hIL-4 mutant proteins.
- Human interleukin-4 (hIL-4) is one of the numerous cytokines that induce and coordinate the proliferation, maturation, survival and differentiation of lymphoid and myeloid cells.
- hIL-4 is at the
- IgE-mediated immune response directly involved and accelerated the proliferation of thymocytes and activated T cells.
- a high affinity IL-4 receptor protein with Mr 140,000 was identified, which according to its cDNA sequence consists of 800 amino acid residues. This belongs to a recently described group of receptors called hematopoietin receptor
- the amino acid sequence of the mature IL-4 consists of 129 residues, based on the cloned cDNA.
- the cDNA has been expressed in E. coli and yeast. From these sources, recombinant IL-4 with high biological
- a monoclonal antibody which has antagonistic properties against human interleukin-4 has recently become known. This antibody contains a Fab fragment and is produced by a human-human hybridoma cell line.
- a hybridoma cell line from spleen cells of a rat immunized against (non-) glycosylated human IL-4 also produces monoclonal antibodies against hIL-4.
- interleukin 4 The role of interleukin 4 in allergic processes suggests that substances that inhibit interleukin-4 mediated processes or compete with hIL-4 interrupt the disease-triggering reaction chain.
- hIL-4 mutant proteins in which at one or more of the positions 120, 121, 122, 123, 124, 125, 126, 127 or 128 the amino acid (s) naturally occurring in the wild type ( n) is exchanged for one or more other of the ' possible natural amino acids.
- These hIL-4 mutant proteins are antagonists or partial agonists of human LL-4.
- the present invention now relates to new hIL-4 mutant proteins which are antagonists or partial agonists of human interleukin-4 in which, in addition to the exchange (s) at positions 121, 124 or 125, further modifications of the hIL-4 protein have been carried out. These modifications are made to increase the stability of the hIL-4 mutant protein, to extend the biological half-life or to facilitate the manufacturing and purification process.
- amino acids that occur naturally in the wild-type are deleted or replaced by other amino acids at one or more positions, or additional amino acids - also at the C- or N-terminus - are inserted, or one or more of the amino acids are identified with different not Protein polymers, such as ' polyethylene glycol and its derivatives - or substituted by glycosyl radicals.
- amino acids generally stand for
- the configuration name can be omitted for simplification.
- Non-protein polymers are e.g. Polyethylene glycol, polypropylene glycol or polyoxyalkylenes, as described in US Pat. Nos. 4,640,835, 4,496,689, 4,301,144, 4,670,417, 4,791,192 or 4,179,337.
- Glycosylation is the linking of a carbohydrate structure to the side chain of an asparagine residue ("N-glycosylation") or the coupling of a sugar, preferably N-acetylgalactosamine, galactose or xylose to serine, threonine, 4-hydroxyproline or 5-hydroxylysine (O-glycosylation ).
- hIL-4 mutant proteins in which the amino acid 124 (tyrosine), the amino acids 121 (arginine) and amino acid 125 (serine) are exchanged in any combination for one of the possible natural amino acids, and in which the N- and / or C-terminus of the molecule is additionally modified and / or one or more polyethylene glycol molecules are covalently bound to the molecule and / or glycosylation sites present in the molecule are partially or completely deleted.
- Particularly preferred embodiments from this group are muteins in which the amino acid 124 (tyrosine), the amino acids 121 (arginine) and amino acid 125 (serine) are exchanged in any combination for aspartic acid or gutamic acid, and in which the N- and / or C-terminus of the molecule is modified and / or one or more polyethylene glycol molecules are covalently bonded to the molecule and / or glycosylation sites present in the molecule are partially or completely deleted.
- a preferred embodiment is also the replacement of amino acid 121 (arginine) and 125 (serine) with a naturally occurring amino acid, preferably aspartic acid or glutamic acid, and in which the N- and / or C-terminus of the molecule is additionally modified and / or one or more polyethylene glycol molecules are covalently bound to the molecule and / or glycosylation sites present in the molecule are partially or completely deleted.
- hIL-4 mutant proteins in which the amino acid 124 (tyrosine) is replaced by a naturally occurring amino acid and 0 to a further amino acid at positions 121 and / or 125 by another of the possible amino acids, and in which the N- and / or C-terminus of the molecule is modified and / or one or more polyethylene glycol molecules are covalently bound to the molecule and / or glycosylation sites present in the molecule are partially or completely deleted.
- hIL-4 mutant proteins in which amino acid 124 (tyrosine) is replaced by aspartic acid or glutamic acid and position 121 by another of the possible amino acids, preferably aspartic acid or glutamic acid, and in which the N- and / / or C-terminus of the molecule is modified and / or one or more polyethylene glycol molecules are covalently bound to the molecule and / or glycosylation sites present in the molecule are partially or completely deleted.
- N-terminal modification for the abovementioned examples is the insertion of an amino acid, preferably Ala, Gly, Pro, Ser, Thr, Val, particularly preferably Ala, between the N-terminal methionine and the natural N-terminus of the hIL-4 mutant protein.
- a preferred embodiment of the deletion of glycosylation sites in the above-mentioned embodiments is the exchange of asparagine in position 38 for another naturally occurring amino acid, preferably aspartic acid and / or asparagine in position 105 for another naturally occurring amino acid, preferably aspartic acid.
- hIL-4 can be genetically engineered as a recombinant protein (rhIL-4), for example in E. coli.
- the protein formed can be solubilized, renatured and isolated.
- the rhIL-4 then has a high specific biological activity, which can be determined, for example, by measuring the DNA synthesis / proliferation of activated T cells or the CD23 expression of activated B cells [cf. Kruse, N. et al. (1991) FEBS Lett. 286, 58-60; Kikutani, H. et al. (1986) Cell 47, 657-665].
- Yokota, T., Otsuka, T., Mosmann, T. for obtaining cDNA which encompasses a DNA region which encodes the mature region of hIL-4, or which encodes the mature region of hIL-4.
- Banchereau, J., DeFrance, T.
- cDNA encoding the mature region of hIL-4 is also understood to mean cDNAs which, with approximately the same number of base pairs, are mutants of the cDNA specifically specified in the prior art mentioned, provided that the hIL-4 muteins to be provided therewith are also antagonists or partial agonists.
- cDNA encoding the mature region of hIL-4 can be obtained by cutting out an EcoRV / BamHI fragment from a genetically engineered cDNA (e.g. from British Bio-Technology Ltd., Oxford, England). The DNA fragment is added with the addition of synthetic oligonucleotides, e.g. 5'-CATGCACAAGTGCGAT and 5'-ATCGCACTTGTG, which are the first 4
- Amino acid sequence variants of IL-4 are generated by introducing suitable modified nucleotides into the IL-4 coding DNA or by in vitro synthesis of the desired IL-4 form.
- Such variants include e.g. Deletions or insertions or substitutions of residues within the IL-4 amino acid sequence. Any combination of deletion, insertion and substitution is permissible to achieve the final construct, provided that
- End construct has the desired features.
- the amino acid changes can also change the post-translational processing of IL-4: for example, can by inserting, deleting or otherwise influencing the leader sequence of the native IL-4, the number or the positions of the glycosylation sites, the properties of the membrane anchoring and / or the intracellular localization of IL-4 are changed.
- the mutation sites can be changed individually or in series, e.g. by (1) substitution first with conservatively selected amino acids and then with more radical options depending on the results achieved, (2) deletion of the target
- a suitable method for identifying certain IL-4 residues or regions as preferred mutagenesis sites is the "alanine scanning mutagenesis" described by Cunningham and Wells (Science, 244: 1081-1085, 1989).
- a residue or a group of target residues is identified (e.g. charged residues such as
- Arg, Asp, His, Lys and Glu and replaced by a neutral or negatively charged amino acid (preferably alanine or polyalanine) so as to influence the interaction of the amino acids with the adjacent aqueous environment inside or outside the cell.
- a neutral or negatively charged amino acid preferably alanine or polyalanine
- Variants worked on or for the substitution sites. This means that although the location for introducing an amino acid sequence change is predetermined, the type of change per se need not be predetermined.
- the size of the deletions in an amino acid sequence is generally about 1 to 30 residues, preferably about 1 to 10 residues, and are normally one behind the other.
- the deletions normally concern amino acid residues lying directly next to one another.
- IL-4 in the affected area, e.g. Cysteine crosslinking, beta sheet structure or alpha helix, is retained.
- the insertions in an amino acid sequence include amino and / or carboxyl-terminal fusions with a length from a single residue to polypeptides with 100 or more residues as well as within a sequence
- Insertions of single or multiple amino acid residues can generally about 1 to 10 residues, preferably 1 to 5 and optimally 1 to 3 residues.
- Examples of terminal insertions are IL-4 with an N-terminal methionyl residue, an artifact of the direct expression of IL-4 in a recombinant bacterial cell culture, the insertion of one or more additional amino acids between methionine and the natural N-terminus for better elimination of the methionine, e.g. by bacterial proteases, and the fusion of a heterologous N-terminal signal sequence to the N-terminus of the IL-4 molecule to promote the secretion of mature IL-4 from the recombinant
- Host cells or the fusion of polyamino acids for easier isolation of IL-4.
- These signal sequences are usually selected from the intended host cell types and are therefore homologous to them. Suitable sequences are e.g. ompA, ompT, phoA, molE, amp or pelB for E. coli, the alpha factor, amylase, invertase, killer toxin and mellitin pre-pro peptide for E. coli, the alpha factor, amylase, invertase, killer toxin and mellitin pre-pro peptide for
- Yeast and viral signals such as herpes gD for mammalian cells.
- a further preferred signal sequence is the natural signal sequence of interleukin-4.
- the signal sequences which are split off by the expression organism itself are particularly preferred, so that the interleukin-4 mutant protein has the natural N-terminus.
- Preferred expression products after cleavage of the signal sequence are:
- insertion variants of IL-4 include the fusion of immunogenic polypeptides to the N or C terminus of IL-4, e.g. bacterial polypeptides such as beta-lactamase or an enzyme encoded by the E. coli trp locus or a yeast protein, as well as C-terminal fusions with proteins with a long half-life such as e.g. immunoglobulin constant regions (or other immunoglobulin regions), albumin or ferritin - cf. Description in WO 89/02922 (published April 6, 1989).
- variants are those with amino acid substitution.
- at least one amino acid residue in the IL-4 molecule is replaced by another residue.
- hydrophobic Met, Ala, Val, Leu, He
- neutral hydrophilic Cys, Ser, Thr
- Non-conservative substitutions involve the exchange of a representative of one of these classes for that of another.
- Amino acid substitution is used, among other things, to change the native glycosylation pattern of the polypeptide.
- “Change” means deletion of one or several of the carbohydrate scaffolds in the native IL-4 and / or addition of one or more glycosylation sites that are not present in the native IL-4.
- glycosylation of the polypeptides is usually either N-linked or O-linked.
- N-linked refers to the coupling of the carbohydrate structure to the side chain of an asparagine residue.
- O-linked refers to the coupling of one of the sugars N-acetylgalactosamine, galactose or xylose to a hydroxyamino acid, generally. Serine or threonine, although 4-hydroxyproline or 5-hydroxylysine can also be used.
- amino acid sequence such that it contains one or more of the tri-peptide sequences described above (for N-linked glycosylation sites).
- the change can also be made by adding or substituting one or more serine or threonine residues to the native IL-4 sequence (for 0-linked glycosylation sites). In the sense of an easier one
- the IL-4 amino acid sequence is preferably changed via changes at the level of the DNA, in particular via a mutation of the transcoding DNA at previously selected bases, so that codons are generated which are translated into the desired amino acids.
- one or more of the tri-peptide sequences present is modified by substitution or deletion of all or part of the tri-peptide.
- the carbohydrate skeleton can be deleted by substitution or deletion of the corresponding amino acid.
- the sugar (s) can be (a) arginine and histidine, (b) free carboxyl groups, (c) free sulfhydryl groups such as those of cysteine, (d) free hydroxyl groups such as those of serine, threonine or
- chemical or enzymatic agents can also be used to remove the carbohydrate frameworks occurring in the native IL-4.
- Chemical deglycosylation requires exposure of the polypeptide to the compound trifluoromethanesulfonic acid or an equivalent compound. This treatment leads to the elimination of most or all of the sugars with the exception of the linking sugar (N-
- Glycosylation at the potential glycosylation sites can be accomplished using the compound tunicamycin - described by Duskin et al. (J. Biol. Chem., 257: 3105 [1982]) - can be prevented. Tunicamycin blocks the
- IL-4 covalent modification of IL-4 involves linking IL-4 to various non-protein polymers, e.g. Polyethylene glycol, polypropylene glycol, or polyoxyalkylene, in the manner described in US Pat. Nos. 4,640,835; 4,496,689; 4,301,144; 4,670,417; 4,791,192 or
- the agent used for cross-linking, the degree of substitution and the reaction conditions are selected by experiments with bifunctional agents, preferably with a series of reagents, each of which reacts with a different side chain.
- a preferred way of improving the half-life of proteins circulating in vivo is to conjugate it to a polymer which gives it a longer half-life.
- PEG polyethylene glycol
- Cl-NH the conjugation of polyethylene glycol
- PEG is a non-immunogenic, linear, uncharged polymer with three water molecules per molecule of ethylene oxide so that the hydrodynamic properties of the conjugated molecules can change dramatically (Maxfield et al., Polymer, 16: 505-509 (1975); Bailey, FE , et al, in: Nonionic surfactants [Schick, MJ, ed.] pp. 794-821, 1967).
- Several therapeutically used enzymes have been linked to PEG with the aim of effectively increasing the in vivo half-life (Abuchowski, A. et al., J. Biol.
- LL-4 can also be enclosed in microcapsules made e.g. by coacervation techniques or by "interfacial polymerization” (e.g. hydroxymethyl cellulose or gelatin microcapsules and
- IL-4 preparations are also used in antibody production as standards for IL-4 assays (eg by labeling IL-4 for use as a standard in a radioimmunoassay, an enzyme-linked immunoassay or in a Radioreceptor assay), in affinity purification techniques and in receptor binding assays (of the competitive type) when labeled with radioiodine, enzymes, fluorophores, "spin labeis", etc. are suitable.
- a certain "screening" of the variant obtained is necessary in order to achieve the optimal variant.
- a change in the immunological character of the IL-4 molecule e.g. the affinity for a particular antibody, measured by a competitive immunoassay.
- the variant is based on changes in the decrease or increase in their activity - compared to that found in the same assay for the native IL-4
- Activity checked.
- Other potential changes in the protein or polypeptide properties - such as, for example, the redox or thermal stability, the hydrophobicity, the sensitivity to proteolytic degradation, the stability in the recombinant cell culture or in the plasma or also the tendency to use "carriers" or to Aggregating multimers - are determined by methods that are state of the art.
- the compounds according to the invention either inhibit interleukin-4-mediated processes or compete with the hIL-4. They are therefore suitable for the treatment of excessive or incorrectly controlled immune reactions and
- Autoimmune diseases This also includes immunodeficiencies of both primary and secondary types.
- the antagonist can be used both in transplants and in the palliative therapy of tumor diseases. These include, for example: - Allergies
- the IL-4 mutant protein can be systemic as well as local i.e. can be used topically, e.g. inhalatively as a spray.
- a formulation as a depot preparation is also possible. With all forms of therapy, both short-term therapy and long-term therapy should be considered.
- Therapeutic formulations of the IL-4 antagonist are prepared for storage in that the IL-4 antagonist after reaching the desired degree of purity with physiologically acceptable "carriers", auxiliaries or stabilizers (Remington's Pharmaceutical Sciences, loc. Cit.) In the form of a lyophilisate or aqueous Solutions is mixed. Acceptable "carriers",
- buffers such as phosphate, citrate and other organic acids
- Antioxidants such as Ascorbic acid
- low molecular weight polypeptides less than about 10 residues
- proteins such as serum albumin, gelatin or immunoglobulins
- hydrophilic polymers such as
- Polyvinyl pyrrolidone Polyvinyl pyrrolidone; Amino acids such as glycine, glutamine, asparagine, arginine or lysine; Monosaccharides, disaccharides and other carbohydrates, e.g. Glucose, mannose or dextrins; Chelating agents such as EDTA; Sugar alcohols such as mannitol or sorbitol; salt-forming counterions such as sodium and / or non-ionic surfactants such as Tween, Pluronics or polyethylene glycol (PEG).
- Amino acids such as glycine, glutamine, asparagine, arginine or lysine
- Monosaccharides, disaccharides and other carbohydrates e.g. Glucose, mannose or dextrins
- Chelating agents such as EDTA
- Sugar alcohols such as mannitol or sorbitol
- salt-forming counterions such as sodium and
- An IL-4 antagonist for in vivo use must be sterile. This is easily accomplished by filtration through sterile membrane filters, either before or after lyophilization and reconstitution.
- the IL-4 antagonist is usually gelled in lyophilized form or in solution.
- sustained release preparations are e.g. semi-permeable matrices made of solid hydrophobic polymers containing the protein; these matrices are shaped articles, e.g. Film-coated tablets or microcapsules.
- sustained release matrices are polyesters, hydrogels [e.g. Poly (2-hydroxyethyl methacrylate) - described by Langer et al., J. Biomed. Mater. Res., 15: 167-277
- Lactic acid-glycolic acid copolymer and leuprolide acetate and poly-D - (-) - 3-hydroxybutyric acid (EP 133,988). While polymers such as ethylene vinyl acetate and lactic acid-glycolic acid allow the release of the molecules for more than 100 days, the release of the proteins occurs in some hydrogels shorter periods. If encapsulated proteins remain in the body for long periods of time, they can denature or aggregate through moisture at 37 C, which results in a loss of biological effectiveness and possible changes in immunogenicity. Depending on the mechanism in question, useful strategies can be developed to stabilize the proteins.
- stabilization can be achieved by modifying the sulfhydryl residues, lyophilizing from acidic solutions, checking the liquid content, using suitable additives and developing more specifically Achieve polymer matrix compositions.
- Delayed-release LL-4 antagonist formulations also include IL-4 antagonists encapsulated in liposomes.
- Liposomes containing IL-4 antagonists are produced by methods known per se: DE 3,218,121; Epstein et al., Proc. Natl. Acad. Be. USA, 82: 3688-
- the liposomes are typically of the small (about 200-800 angstroms) unilamellar type with a lipid content of more than about 30 mol%
- Another application of the invention relates to the incorporation of EL-4 antagonists into "molded articles". These can be used to modulate or prevent the
- Shock can be used.
- example 1 Shock Shock can be used.
- hIL-4 amino acid sequence there are two asparagine-linked glycosylation sites in amino acid positions 38 and 105.
- the corresponding codons in the structural gene can be exchanged for those for aspartic acid. This prevents N-glycosylation of the resulting hIL-4 mutant protein when the gene is expressed in yeast strains.
- the codon exchange in the nucleotide sequence was confirmed by DNA sequencing.
- the modified structural gene was inserted into yeast expression vectors and expressed in suitable strains.
- This mutagenesis inserts the amino acid alanine (codon GCC) into position (+ 2) of the IL4Y124D gene.
- an Ncol site CCATGG is introduced at the 5 'end of the gene in order to facilitate the subsequent screening and cloning in an expression vector. The 'screening' of
- Plaques were carried out by a restriction analysis based on double-stranded Ml 3 RF DNA (replicative form). Positive clones could be identified by restriction digestion with the enzymes Ncol and BamHI. The correct sequence was also confirmed by sequencing.
- the starting materials were prepared in demineralized water and the pH was adjusted to pH 5.5. The sterilization was carried out at 121 ° C. for 20 min. Glucose was dissolved in 1/5 of the required volume in demineralized water, sterilized separately and added to the remaining nutrient solution after cooling. Regular canned food:
- Canned stocks of all yeast transformants were created by filling 2 ml aliquots of a preculture and storing in liquid nitrogen.
- the preculture fermentations were in 1 liter shake flasks filled with 200 ml
- SD2 nutrient solution performed.
- the inoculation was carried out with a canned stock or with a single colony from an SD2 agar plate.
- the cultures were incubated at 26-30 ° C for 2-3 days with constant shaking.
- the main culture fermentations were carried out using 10 liter.
- the feed solution had the following composition:
- the components were separated, dissolved in demineralized water and sterilized at 121 ° C for 20 min. After cooling, both solutions were combined.
- the induction was carried out by changing the carbohydrate in the feed solution from glucose (500 g / 1) to galactose (500 g / 1). The further control of the feeding rate was then not carried out via the RQ value.
- the feeding rate was manually set to double the feeding rate at the time of
- the GallO promoter was usually induced after about 48 hours of fermentation.
- the fermenter content was cooled to 10-15 ° C and, in the case of intracellular expression, the yeast cells were harvested by standard centrifugation techniques (e.g. cup centrifuge). The cell mass obtained after centrifugation was cryopelletized by direct dropping in liquid nitrogen and stored at -80 ° C. The product was worked up from the biomass treated in this way. When the heterologous protein was secreted into the culture broth, the yeast cells were separated from the
- Culture broth using standard centrifugation techniques (e.g. cup centrifuge) or using cross-flow microfiltration (e.g. Filtron-Minisette system). If necessary, the culture broth was sterile filtered. The product was further processed from the cell-free culture broth.
- standard centrifugation techniques e.g. cup centrifuge
- cross-flow microfiltration e.g. Filtron-Minisette system
- the E. coli transformants expressing hIL4 mutant proteins were cultivated in LB nutrient solution of the following composition:
- the ingredients were dissolved in deionized water and sterilized at 121 ° C for 20 min. Before the inoculation, the nutrient solution was used to select the
- Antibiotics suitable for transformers e.g. 100 mg / 1 Na ampicillin or 50 mg / 1 Kanamycin sulfate depending on the selection marker used in the vector are added sterile.
- the preculture fermentations were carried out in 1 liter shake flask filled with 200 ml LB nutrient solution.
- the inoculation was carried out with a canned stock or with a single colony from an LB agar plate.
- the cultures were incubated at 30 ° C. for 12-18 hours with constant shaking.
- the main culture fermentations were carried out using 10 liters.
- sterile samples were taken from the culture broth at intervals of approximately 1 hour and the optical density at 600 nm (OD600) was determined. When an OD600 of 0.8-1.2 was reached, the
- IPTG induction Sterile addition of isopropyl-ß-D-thiogalactopyranoside (IPTG) ad 0.4 mM
- the induction time was typically 4-8 hours.
- Example 5 After the fermentation had ended (6-14 hours), the contents of the fermenter were cooled to 10-15 ° C. and the bacterial cells were harvested using standard centrifugation techniques (eg cup centrifuge). The cell mass obtained after centrifugation was optionally stored in the frozen state. The product was processed from the biomass obtained in this way.
- standard centrifugation techniques eg cup centrifuge
- Yeast transform anten with an expression vector containing a gene coding for an hIL-4 mutant protein and a constitutive promoter (e.g. alpha
- Mating factor promoter, GAPDH promoter, TPI promoter were cultivated on a 10 liter scale at 28 ° C.
- the qualitative test for expression of the hIL-4 mutant protein was carried out using SDS-PAGE.
- the fermentation time was 96 hours.
- the biomass concentration achieved at the end of the fermentation was 27 g / 1 TG.
- Yeast transformers with an expression vector containing a gene coding for an hIL-4 mutanate protein and an inducible promoter were cultivated on a 10 liter scale at 28 ° C. After a fermentation period of 48 hours, the induction took place by changing the carbohydrate used in the feed solution from glucose to galactose. During the fermentation, the qualitative test for expression of the hIL-4 mutant protein was carried out using SDS-PAGE. The fermentation time was 96 hours. The biomass concentration reached at the end of the fermentation was 24 g / 1 TG. After separation of the cells and sterile filtration, the product was worked up from the cell-free culture broth.
- an inducible promoter e.g. Gal 10 promoter or a derivative of the GallO promoter
- E. coli transformants with an expression vector containing a gene coding for an hIL-4 mutant protein and a temperature-inducible promoter (e.g. ⁇ pL promoter or a derivative of the ⁇ pL promoter) were cultivated on a 10 liter scale in LB nutrient solution.
- the main culture batches were inoculated with 5% by volume of a 14-hour-old preculture cultivated in LB + Amp nutrient solution.
- Fermentation temperature at the start of the fermentation was 30 ° C and was increased from 0.8 - 1.2 to 42 ° C to induce the temperature-sensitive promoter after reaching an OD600.
- the qualitative test for expression of the hIL-4 mutant protein was carried out using SDS-PAGE. After an induction period of 4-6 hours, the fermentation was terminated by
- the biomass concentration achieved at the end of fermentation was approx. 5 g / 1 FG.
- the E. coli cells were harvested by centrifugation in a beaker centrifuge (15 min., 6500 x g, 4 ° C.) and the cell mass was cryopelletized by direct dropping in liquid nitrogen. The further frozen biomass was stored at -80 ° C.
- the product was processed from the biomass treated in this way.
- E. coli wet weight from Example 7 25 g were taken up in 200 ml of buffer (0.1 M phosphate buffer, pH 7.3, 0.1% Triton, 1 mM EDTA, 1 ⁇ g / ml pepstatin) and disrupted by ultrasound (Branson Sonifier B 15).
- the the inclusion bodies containing the product were obtained by centrifugation (35,000 ⁇ g, 20 min.) and washed in the digestion buffer, which additionally contained 4 M urea.
- the washed inclusion bodies were solubilized in 125 ml of buffer (0.2 M Tris, pH 8.1, 8 M guanidine hydrochloride). 4 g of sodium sulfite and 2 g of potassium tetrathionate were added and the reaction mixture was stirred for 2 h. Undissolved constituents were removed by centrifugation after the reaction had ended (35,000 x g, 20 min.).
- buffer 0.2 M Tris, pH 8.1, 8 M guanidine hydrochloride
- the supernatant was applied to a gel filtration column (Sephacryl-S-300 HR, Pharmacia, 10 ⁇ 90 cm) and gel filtered in PBS buffer containing 6 M guanidine hydrochloride at a flow rate of 280 ml / h.
- Product-containing fractions were identified by SDS-PAGE and pooled.
- ß-mercaptoethanol final concentration 15 mM was added. After two hours of incubation at room temperature, the mixture was diluted 5-fold with water and dialyzed for 3-4 days against buffer (3 mM NaH, PO 4 , 7 mM Na 2 HPO 4 , 2 mM KC1, 120 mM NaCl).
- the dialyzed material was adjusted to pH 5 with acetic acid and the conductivity was reduced to ⁇ 10 mS / cm by adding water.
- CM-Sepharose was applied to a Vydac C-4 column (1 x 25 cm, 10 ⁇ m) equilibrated with 0.1% TFA and eluted with an increasing acetonitrile gradient. Fractions containing pure product were pooled and lyophilized.
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Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK95924273T DK0769020T3 (da) | 1994-07-01 | 1995-06-19 | Nye hIL-4-mutantproteiner som antagonister eller delvise agonister for det humane interleukin-4 |
JP8503644A JPH10502360A (ja) | 1994-07-01 | 1995-06-19 | ヒトインターロイキン4のアンタゴニストもしくは部分的アゴニストとして用いられる新規hIL−4突然変異蛋白質 |
EP95924273A EP0769020B1 (de) | 1994-07-01 | 1995-06-19 | NEUE hIL-4-MUTANTENPROTEINE ALS ANTAGONISTEN ODER PARTIELLE AGONISTEN DES HUMANEN INTERLEUKIN 4 |
DE59507920T DE59507920D1 (de) | 1994-07-01 | 1995-06-19 | NEUE hIL-4-MUTANTENPROTEINE ALS ANTAGONISTEN ODER PARTIELLE AGONISTEN DES HUMANEN INTERLEUKIN 4 |
US08/765,012 US6130318A (en) | 1994-07-01 | 1995-06-19 | hIL-4 mutant proteins used as antagonists or partial agonists of human interleukin 4 |
HU9603563A HU221416B1 (en) | 1994-07-01 | 1995-06-19 | Hil-4mutant proteins used as antagonists or partial agonists of human interleukin 4 |
AT95924273T ATE190068T1 (de) | 1994-07-01 | 1995-06-19 | Neue hil-4-mutantenproteine als antagonisten oder partielle agonisten des humanen interleukin 4 |
SK1692-96A SK284391B6 (sk) | 1994-07-01 | 1995-06-19 | Mutantné proteíny ľudského interleukínu-4 ako antagonisty alebo parciálne agonisty ľudského interleukínu-4, liečivá, ktoré ich obsahujú, a použitie |
CA002193993A CA2193993C (en) | 1994-07-01 | 1995-06-19 | New hil-4 mutant proteins used as antagonists or partial agonists of human interleukin 4 |
AU28852/95A AU705745B2 (en) | 1994-07-01 | 1995-06-19 | Novel hIL-4 mutant proteins as antagonists or partial agonists of human interleukin 4 |
KR1019960703865A KR100265219B1 (ko) | 1994-11-18 | 1995-11-17 | 누벅조 직물 및 그 제조방법 |
NO965621A NO965621D0 (no) | 1994-07-01 | 1996-12-30 | Nye hIL-4-mutantproteiner som antagonister eller partielle agonister for det humane interleukin 4 |
GR20000401195T GR3033498T3 (en) | 1994-07-01 | 2000-05-24 | NEW hIL-4 MUTANT PROTEINS USED AS ANTAGONISTS OR PARTIAL AGONISTS OF HUMAN INTERLEUKIN 4 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4423131A DE4423131A1 (de) | 1994-07-01 | 1994-07-01 | Neue hIL-4-Mutantenproteine als Antagonisten oder partielle Agonisten des humanen Interleukin 4 |
DEP4423131.8 | 1994-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996001274A1 true WO1996001274A1 (de) | 1996-01-18 |
Family
ID=6522032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/002358 WO1996001274A1 (de) | 1994-07-01 | 1995-06-19 | NEUE hIL-4-MUTANTENPROTEINE ALS ANTAGONISTEN ODER PARTIELLE AGONISTEN DES HUMANEN INTERLEUKIN 4 |
Country Status (18)
Country | Link |
---|---|
US (1) | US6130318A (de) |
EP (1) | EP0769020B1 (de) |
JP (3) | JPH10502360A (de) |
KR (1) | KR100393508B1 (de) |
AT (1) | ATE190068T1 (de) |
AU (1) | AU705745B2 (de) |
CA (1) | CA2193993C (de) |
CZ (1) | CZ292703B6 (de) |
DE (2) | DE4423131A1 (de) |
DK (1) | DK0769020T3 (de) |
ES (1) | ES2145280T3 (de) |
GR (1) | GR3033498T3 (de) |
HU (1) | HU221416B1 (de) |
NO (1) | NO965621D0 (de) |
SK (1) | SK284391B6 (de) |
TW (1) | TW458984B (de) |
WO (1) | WO1996001274A1 (de) |
ZA (1) | ZA955443B (de) |
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US8182626B2 (en) | 2008-10-30 | 2012-05-22 | Continental Ag | Tire composition with improved vulcanizing agent |
US9512194B2 (en) | 2012-01-27 | 2016-12-06 | The Board Of Trustees Of The Leland Stanford Junior University | Modified IL-13 polypeptides |
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JP6936934B2 (ja) | 2013-09-24 | 2021-09-22 | メディシナ セラピューティクス インコーポレイテッド | インターロイキン−4受容体結合融合タンパク質及びその使用 |
CN112538108B (zh) * | 2020-12-24 | 2022-06-28 | 郑州大学 | 高亲和pvr突变体 |
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-
1994
- 1994-07-01 DE DE4423131A patent/DE4423131A1/de not_active Withdrawn
-
1995
- 1995-06-19 CZ CZ19963848A patent/CZ292703B6/cs not_active IP Right Cessation
- 1995-06-19 CA CA002193993A patent/CA2193993C/en not_active Expired - Fee Related
- 1995-06-19 JP JP8503644A patent/JPH10502360A/ja active Pending
- 1995-06-19 DE DE59507920T patent/DE59507920D1/de not_active Expired - Lifetime
- 1995-06-19 AU AU28852/95A patent/AU705745B2/en not_active Ceased
- 1995-06-19 ES ES95924273T patent/ES2145280T3/es not_active Expired - Lifetime
- 1995-06-19 SK SK1692-96A patent/SK284391B6/sk not_active IP Right Cessation
- 1995-06-19 KR KR1019960707590A patent/KR100393508B1/ko not_active IP Right Cessation
- 1995-06-19 HU HU9603563A patent/HU221416B1/hu not_active IP Right Cessation
- 1995-06-19 AT AT95924273T patent/ATE190068T1/de active
- 1995-06-19 DK DK95924273T patent/DK0769020T3/da active
- 1995-06-19 US US08/765,012 patent/US6130318A/en not_active Expired - Lifetime
- 1995-06-19 EP EP95924273A patent/EP0769020B1/de not_active Expired - Lifetime
- 1995-06-19 WO PCT/EP1995/002358 patent/WO1996001274A1/de active IP Right Grant
- 1995-06-30 ZA ZA955443A patent/ZA955443B/xx unknown
- 1995-07-10 TW TW084107101A patent/TW458984B/zh not_active IP Right Cessation
-
1996
- 1996-12-30 NO NO965621A patent/NO965621D0/no not_active Application Discontinuation
-
2000
- 2000-05-24 GR GR20000401195T patent/GR3033498T3/el unknown
-
2006
- 2006-11-15 JP JP2006309383A patent/JP2007051161A/ja active Pending
-
2010
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US9028835B2 (en) | 2001-10-03 | 2015-05-12 | President And Fellows Of Harvard College | Copolymers for suppression of autoimmune diseases, and methods of use |
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US9670467B2 (en) | 2005-04-11 | 2017-06-06 | Horizon Pharma Rheumatology Llc | Variant forms of urate oxidase and use thereof |
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Also Published As
Publication number | Publication date |
---|---|
US6130318A (en) | 2000-10-10 |
HU9603563D0 (en) | 1997-02-28 |
EP0769020A1 (de) | 1997-04-23 |
HU221416B1 (en) | 2002-09-28 |
DK0769020T3 (da) | 2000-07-31 |
DE59507920D1 (de) | 2000-04-06 |
NO965621L (no) | 1996-12-30 |
NO965621D0 (no) | 1996-12-30 |
JPH10502360A (ja) | 1998-03-03 |
ATE190068T1 (de) | 2000-03-15 |
EP0769020B1 (de) | 2000-03-01 |
HUT77577A (hu) | 1998-06-29 |
CA2193993A1 (en) | 1996-01-18 |
JP2011102302A (ja) | 2011-05-26 |
SK284391B6 (sk) | 2005-03-04 |
TW458984B (en) | 2001-10-11 |
CZ384896A3 (en) | 1997-06-11 |
AU705745B2 (en) | 1999-06-03 |
DE4423131A1 (de) | 1996-01-04 |
CA2193993C (en) | 2008-11-18 |
GR3033498T3 (en) | 2000-09-29 |
ZA955443B (en) | 1996-02-13 |
CZ292703B6 (cs) | 2003-11-12 |
KR100393508B1 (ko) | 2003-10-23 |
AU2885295A (en) | 1996-01-25 |
SK169296A3 (en) | 1997-08-06 |
ES2145280T3 (es) | 2000-07-01 |
JP2007051161A (ja) | 2007-03-01 |
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