WO1995023165A1 - Accelerateur de croissance des thrombocytes - Google Patents
Accelerateur de croissance des thrombocytes Download PDFInfo
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- WO1995023165A1 WO1995023165A1 PCT/JP1995/000266 JP9500266W WO9523165A1 WO 1995023165 A1 WO1995023165 A1 WO 1995023165A1 JP 9500266 W JP9500266 W JP 9500266W WO 9523165 A1 WO9523165 A1 WO 9523165A1
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- group
- polypeptide
- csf
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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
- C07K14/53—Colony-stimulating factor [CSF]
- C07K14/535—Granulocyte CSF; Granulocyte-macrophage CSF
-
- 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
-
- 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
- A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention provides at least one amino group, carboxy group, mercapto group or guanidino group in the molecule of a polypeptide having human granulocyte colony stimulating factor (hereinafter abbreviated as hG-CSF) activity.
- hG-CSF human granulocyte colony stimulating factor
- a chemically modified hG-CSF polypeptide obtained by chemical modification with a chemical modifying agent, a platelet growth promoter comprising the polypeptide, a patient with reduced platelets comprising administering an effective amount of the polypeptide
- the use of said polypeptide for the manufacture of a pharmacological composition effective for the treatment of patients with reduced platelets and a pharmacologically acceptable dosage form together with a pharmacologically acceptable carrier.
- Substances having a platelet growth promoting action include interleukin 6 [F. Takatsuki et al., Cancer Research, 50, 2885-2890 (1990)], leukemia inhibitory factor [D. Metcalf et al., Blood, 76, 50-56 (1990) )], Stem Cell Factor [P. Hunt et al., Blood, 80, 904-911 (1992)], Macrophage colony stimulating factor (M-CSF; Japanese Patent Publication No. 6-11705) And thrombopoetin [de Sauvage et al., Nature, 369, 533 (1994)] and the like.
- interleukin 6 F. Takatsuki et al., Cancer Research, 50, 2885-2890 (1990)
- leukemia inhibitory factor D. Metcalf et al., Blood, 76, 50-56 (1990)
- Stem Cell Factor P. Hunt et al., Blood, 80, 904-911 (1992)
- hG-C and SF are one of the polypeptides essential for proliferating and differentiating hematopoietic stem cells and forming various blood cells, and have the effect of mainly promoting the increase of granulocytes, especially neutrophils. It is known to have.
- Polypeptides obtained by chemically modifying groups in a polypeptide having hG-CSF activity with a chemical modifying agent include at least one amino group in the molecule of the polypeptide having hG-CSF activity in polyethylene glycol.
- Derivatively modified hG— CSF is known (JP-A-11-sisoowogozosgsz JP-A-5-32559). It is not known that these chemically modified hG-CSFs have the effect of promoting platelet proliferation.
- the present invention provides a polypeptide in which at least one of an amino, a carboxylic acid group, a mercapto group and a guanidino group in a molecule of a polypeptide having hG-CSF activity is chemically modified, and the polypeptide comprising the polypeptide.
- a method for treating a patient with decreased platelets comprising administering an effective amount of the polypeptide, and producing a pharmacological composition effective for the treatment of patients with decreased platelets
- Use of the polypeptide for the preparation of a pharmaceutically acceptable carrier and an effective amount of the polypeptide in a pharmacologically acceptable dosage form together with a pharmacologically acceptable carrier for the treatment of patients with reduced platelets About things.
- At least one amino group, carboxy group, mercapto group or guanidino group in the molecule of a hG-CSF-active polypeptide is chemically converted to a polyalkylene glycol derivative or a styrene-maleic acid copolymer derivative.
- Modified polypeptide, platelet growth promoter containing the polypeptide, method for treating a patient with decreased platelet comprising administering an effective amount of the polypeptide, treatment of a patient with decreased platelet Of the polypeptide for the manufacture of a pharmacologically effective pharmaceutical composition and platelets comprising an effective amount of the polypeptide in a pharmacologically acceptable dosage form together with a pharmacologically acceptable carrier And a composition for the treatment of patients with reduced blood pressure.
- examples of the polyalkylene glycol derivative include a polyethylene glycol derivative, a polypropylene glycol derivative, and a derivative of a polyethylene glycol-polypropylene glycol copolymer.
- the chemical modifier for at least one of an amino group, a carboxy group, a mercapto group or a guanidino group is described in more detail.
- R 1 represents an alkyl group or an alkanoyl group
- M represents —CH 2 CH 2 —, — OCH 2 CH 2 CH 2 — or — (OCH 2 CH 2 ) r- ( ⁇ CH 2 CH 2 CH 2 ) S-
- n an arbitrarily variable positive integer
- X represents a single bond
- ⁇ NH or S
- R 3 is OH, halogen or one X a — (M a ) na -R 1a
- Z represents 0, S or NH
- W represents a carboxy group or a reactive derivative thereof
- R 4 represents an alkyl group, Ha represents a halogen), p represents an integer of 1 to 6, and m represents 0 or 1.
- polyalkylene glycol derivative represented by represents a ⁇ , or formula (II)
- R 5 represents a hydrogen atom or an alkyl group
- M c , R le and nc represent the same meanings as M, R 1 and n respectively
- a polyalkylene glycol derivative represented by the following formula:
- R 5e , ua and va each have the same meaning as R 5 , u and v above, one of Q and R represents a carboxy group, and the other is
- the alkyl group represented by R 1 , R 4 and R 5 is a linear or branched one having 1 to 18 carbon atoms, for example, methyl, ethyl, propyl, isopropyl, heptyl, Isopuchiru, sec- heptyl, tert- butyl, pentyl, isopentyl, hexyl, cyclohexyl isobutyl, heptyl, Okuchiru, Isookuchiru, decyl, dodecyl, tetradecyl, to Kisadeshiru, Okutadeshiru and the like, represented by R 1
- the alkanoyl group is a straight-chain or branched one having 1 to 18 carbon atoms, such as formyl, acetyl, propionyl, butyryl, nokrelyl, bivaloyl, pentanoyl, la
- n, r, s, u, and v are 1 to 1, ⁇ ⁇ ⁇ , especially for ⁇ , 7 to 500, and for r, s, u, and v 1 to 200 is preferred.
- the molecular weight of the chemical modifying group of the present invention is in the range of 500 to 100,000, preferably in the range of 1,000 to 40,000. is there.
- any polypeptide having hG-CSF activity can be used, but preferably, the amino acid sequence represented by SEQ ID NO: 1;
- a polypeptide containing an amino acid sequence of a part of the sequence or an amino acid sequence in which a part of the amino acid is substituted with another amino acid [Nature, 319 ⁇ 415 (1986); -267292, JP-A-63-299, WO 87/0111 32].
- Table 1 shows specific examples of polypeptides (hG-CSF derivatives) containing an amino acid sequence in which part of the amino acid in the amino acid sequence represented by SEQ ID NO: 1 has been replaced with another amino acid.
- Chemical modifiers such as polyethylene glycol derivatives, polypropylene glycol derivatives, polyalkylene glycol derivatives such as poly (ethylene glycol) -polypropylene glycol copolymer derivatives, or styrene-maleic acid copolymer derivatives, and amino groups
- a polypeptide having a carboxy group, a mercapto group or a guanidyl group hG-CSF derivative
- a known method for example, BIO INDUSTRY_5, 499-505 (1988), JP-A-64-58992, 1 9 9 5 73 etc.
- an equivalent method can be used o
- the platelet growth promoting agent containing the chemically modified polypeptide having hG-CSF activity produced by the above-mentioned method include: at least one amino group in hG-CSF; Modified polypeptides obtained by bonding groups represented by the following formula (Ia) are exemplified.
- R 1 represents an alkyl or alkanoyl group
- n represents an optionally variable positive integer
- X represents a single bond
- ⁇ NH or S
- R 2a represents
- R 3a is OH, halogen or 1 X a — (CH 2 CH 20 ) na -R 1a
- Y a is a single bond, or one Z-(CH 2 ) p- (0) m -CO-
- the present invention can provide a novel chemically-modified hG-CSF or hG-CSF derivative.
- novel chemically modified hG-CSF examples include modified polypeptides obtained by bonding a group represented by the following formula (lb) to at least one amino group in hG-CSF. (ib) 0-CO-
- R 1 represents an alkyl group or an alkanoyl group
- M is
- n is an arbitrarily variable positive integer
- X is a single bond
- ⁇ NH or S
- R 3b has the same meaning as R 3a
- Z represents 0, S or NH
- p represents an integer of 1 to 6 ⁇ .
- Chemically modified hG-CSF and chemically modified hG-CSF derivatives include 1 to 5 molecules of polyethylene glycol derivative, polypropylene glycol derivative, polyethylene glycol-polypropylene glycol copolymer derivative, or styrene-maleic acid copolymer derivative. I do. Therefore, the chemically modified hG-CSF and the chemically modified hG-CSF derivative are used as a mixture of 1 to 5 molecule conjugates, or 1 to 5 molecule conjugates are used separately.
- This chemically modified hG-CSF and chemically modified hG-CSF derivative can be separated by ion-exchange chromatography, gel filtration chromatography, reverse-phase chromatography, or the like used for separation of normal long-chain polypeptides.
- Various methods such as hydrophobic chromatography and ammonium sulfate fractionation can be applied mutatis mutandis.
- the degree of chemical modification was determined by following the change in mobility of chemically modified hG-CSF using sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Confirmed by
- the amount of protein in the present invention is measured by the following experimental method.
- the protein mass is measured by the method of Lowry, O.H., et., Journal 'Ob' Nokological • Chemistry (J. Biol, Chem.), 193 ⁇ 265 (1951)].
- SDS-polyacrylamide gel electrophoresis was performed according to the method of Remli [UKLaemmli: Nature, 227 ⁇ 680 (1970)], and the proteins separated on the gel were stained with Coomassie Priliant Blue. After that, determine the protein content by measuring with a chromatoscanner (CS-930 Shimadzu Corporation).
- Test Example 1 G-CSF activity of chemically modified hG-CSF and chemically modified hG-CSF derivative and growth promotion effect on mouse leukemia cell NFS60
- Test example 2 Recovery-stimulating effect on thrombocytopenia in whole body irradiated mice
- mice 5 male BALB / c mice (10 weeks old) were used per group.
- male BALBZc mice (6 weeks old) were used.
- Rx whole body irradiation
- SPF Pasjin's-Free
- the chemically modified hG-CSF derivative and the chemically modified hG-CSF derivative shown in Tables 3 to 5 were each dissolved in a physiological saline solution.
- the chemically modified hG-CSF derivative was used. (Tri form) solution was applied once a day after Rx, or twice a day after Rx and on the 5th day.
- chemically modified 0 ⁇ 33 derivative solution was subcutaneously administered 2 ml once per mouse once a day after 13 ⁇ 4.
- mice showed a marked decrease in platelet count, with a low Rx on days 8-9, followed by a gradual increase in platelet count. Did not recover to the same platelet count.
- mice treated with chemically modified hG-CSF and chemically modified hG-CSF derivatives the decrease in platelet count was suppressed, and a marked increase in platelet count was observed after 8-9 days. By ⁇ 12 days, the platelet count had completely recovered to the same platelet count as before irradiation. Similar effects were observed in the groups administered on the day after Rx and on day 5.
- Test Example 3 Effect of anticancer drug administration on recovery of thrombocytopenia
- mice Male BALBZc mice (9 weeks old) were intraperitoneally administered with 10-mg / kg of an anticancer drug 5-fluorouracil (5-FU, manufactured by Kyowa Hakko Kogyo Co., Ltd.) to 5 mice per group.
- the solution of the chemically modified hG-CSF (Tri form) obtained in Reference Example 4 obtained in Reference Example 4 in a physiological saline solution was administered subcutaneously once a day to each mouse at a dose of 5 ⁇ gZ0.2 ml per mouse. Blood was collected from the fundus vein of the mouse over time, and the platelet count was measured using an automatic hemocytometer. Table 6 shows the results. 6 Table
- the relative value (%) is expressed as follows.
- mice After male BALB / c mice (8 weeks old) I37 C s radiation source 4 mice per group (RI-4 3 3, Toshiba) was Rx to 1 O Gy per mouse, S PF habitat facilities chestnut - Nrakku Reared within.
- 2 x 10 6 bone marrow cells non-nylon wool non-adherent cells
- the chemically modified hG-CSF (Tri-form) obtained in Reference Example 4 was dissolved in a saline solution once per mouse 10 g gZO. 2m 1, 20 g / 0.2 ml or 40 g 0.2 ml subcutaneously. Blood was collected from the fundus vein of the mouse over time, and the platelet count was measured with an automatic hemocytometer. The results are shown in Table 7. Table 7
- mice All 10 Gy whole body irradiated mice died within 2 weeks with severe thrombocytopenia. No bone marrow cell transplanted mice died, but platelet depletion continued for more than two weeks. In bone marrow transplanted mice to which chemically modified hG-CSF was administered, the effect of promoting platelet recovery was seen after day 11, depending on the dose. Has recovered.
- Test example 5 Acute toxicity test
- cytokines low molecular weight platelet growth promoters
- Other cytokines include interleukin 3, interleukin 6, leukemia inhibitory factor, stem cell factor. Macrophage 'colony stimulating factor, thrombopoietin, and the like.
- Examples of the low-molecular platelet growth promoter include conagenin, Y25510, 2-pyranone derivatives, FK565, and the like.
- the chemically modified hG-CSF or chemically modified hG-CSF derivative can be used as it is or in various pharmaceutical forms.
- the pharmaceutical composition of the present invention can be produced by uniformly mixing, as an active ingredient, an effective amount of a chemically modified hG-CSF or a chemically modified hG-CSF derivative with a pharmaceutically acceptable carrier. Desirably, these pharmaceutical compositions are in unit dosage form suitable for administration by injection.
- An injection can be prepared as a liquid preparation using chemically modified hG-CSF or a chemically modified hG-CSF derivative and a carrier comprising distilled water, a salt solution, a glucose solution, or a mixture of a salt solution and a glucose solution. At this time, it is prepared as a solution, a suspending agent or a dispersing agent using an appropriate auxiliary according to a conventional method. Further, the liquid preparation can be freeze-dried to prepare a freeze-dried preparation.
- the freeze-drying conditions are not particularly limited, but usually freeze at 150 ° C or less for 1 to 5 hours, and shelf temperature—20 ° C to 0 ° C, vacuum at 50 to 150 mTorr, 24 to Dry for 48 hours, then at shelf temperature of 10 to 30 ° C and vacuum of 50 to 100 mTorr for 16 to 24 hours to obtain a freeze-dried product.
- the platelet growth promoter of the present invention can contain various ordinary pharmaceutical carriers, excipients, diluents, stabilizers, adsorption inhibitors and the like.
- the dose and frequency of administration of the platelet growth promoter of the present invention are determined according to the dosage form, the age and weight of the patient, the disease to be treated and the condition of the patient. l. Chemically modified hG—C of 511 ⁇ 2, preferably 25-500 ⁇ 8 The SF, or chemically modified h G-CS F derivative-containing steel ⁇ as c administration methods for administering one week question per 1-7 times, intravenous or subcutaneous injection or the like can remain river.
- the platelet growth promoting agent of the present invention can further be used as a locus or a drop.
- Injection II having the following composition was prepared by the following method.
- An injection having the following composition was prepared by the following method.
- Injection having the following composition was prepared by the following method.
- 0.7-0M ammonium sulfate was passed through the system at a flow rate of 18 Oml and 3 Oml Zhr in a linear gradient to elute.
- the target eluted from 0.47M ammonium sulfate to 0.16M.
- Ammonium sulfate was added to the eluted fraction to a final concentration of 0.7 M, and butyltoyopearl 6.5 M (Tokyo Sodium) filled with 10 mM Tris-HCl buffer-0.7 M ammonium sulfate (pH 7.5) was added.
- the eluted fraction 20 Om 1 was subjected to ultrafiltration [molecular weight fraction 10,000: YM 10 (manufactured by Amicon)] and concentrated to 6.5 m 1.
- HG having the amino acid sequence shown in SEQ ID NO: 1 The first threonine of CSF is alanine, the third leucine is threonine, the fourth glycine is tyrosine, the fifth proline is arginine, and the 17th is An hG-CSF derivative (Table 1, compound k) in which cystine was replaced with serine was obtained as follows. Escherichia coli strain W3110 (Escherichia coli ECfBD28 FERM BP-1479) carrying plasmid pCfBD28 containing DNA coding for the above hG-CSF derivative was transformed into LG medium (10 g of bactotryptone, yeast extract 5).
- LG medium 10 g of bactotryptone, yeast extract 5
- 3 ⁇ -indoleacrylic acid (3 ⁇ -indoleacrylic acid) acid (hereinafter abbreviated as IAA) was added at 10 g / m 1, and the culture was further continued for 2 to 12 hours.
- the culture was centrifuged at 8000 rpm for 10 minutes to collect the cells, and the cells were washed with 30 mM sodium chloride and 30 mM Tris-HCl buffer (pH 7.5).
- the washed cells were suspended in 30 ml of the above buffer solution, and sonicated at 0 for 10 minutes (SONIFIER CELL DISRUPTOR 2 from BRANSON SONIC POWER COMPANY). 00, OUTPUT C0NTR0L2)
- the sonicated product was centrifuged at 9000 rpm for 30 minutes to obtain a cell residue.
- the hG-CSF derivative was extracted, purified, solubilized, and regenerated from this cell residue according to the method of Marston et al. [FAO Marston et al .: Bio'Technology 1 (BI0 / TECHN0L0GY), 800 (1984)].
- the column was passed through at a flow rate of 00 ml and 10 OmlZhr for elution.
- the desired product was eluted from ammonium sulfate OmM to 25 OmM. Ultrafiltration of 250 ml of eluted fraction
- a chemically modified hG-CSF derivative (Tri-form) in which three molecules of a polyethylene glycol derivative are bonded to one molecule of hG-CSF, and a polyethylene glycol derivative around 420 to 450 ml
- a chemically modified hG-CSF derivative (Di-form) with two molecules of carboxylic acid bonded to a chemically modified hG-CSF derivative (Mono) with one molecule of a polyethylene glycol derivative carboxylic acid bonded near 50 Oml to 530 m1 Was eluted, and 2.1 mg (7% yield), 1.5 mg (5% yield) and 1.5 mg (5% yield) were obtained, respectively.
- the purity of the Mono form, Di form and Tri form was all 90% or more. Reference example 5.
- reaction solution was centrifuged at 8000 rpm at 4 ° C for 40 minutes, and ammonium sulfate was added to the supernatant 37 Om1 to a final concentration of 0.68 M.
- Anmoniumu (manufactured by Toso one company) charge has been butyl Toyopearl 650 M in (pH7. 5) (5 cmx 6.
- the chemically modified hG-CSF polypeptide was eluted at around 200 ml to 380 ml from the beginning of the flow of PBS, and was a mixture of conjugates (Mono to Tetra) of 1 to 4 molecules of polyethylene glycol derivative (Yield) 1 58 mg, yield 78%).
- ammonium sulfate was passed through a 1 OmM Tris-HCl buffer (pH 7.5) system with a linear gradient at a total volume of 240 ml at a flow rate of 40 ml / hr for elution. .
- the desired product eluted between 0.33M ammonium sulfate and 0.05M.
- the eluted fraction 90 ml was subjected to ultrafiltration [molecular weight fraction 10,000: YM10 (manufactured by Amicon)] and concentrated to 6 ml.
- the chemically modified hG-CSF polypeptide is eluted from 1 Om to 120 m1 after starting to flow in PBS and is a mixture of conjugates of 1 to 4 molecules of polyethylene glycol derivative (1 ⁇ 0110 to 10-tra). (Yield 9.5018, Yield 23%).
- the carboxylic acid (10 g, 1.Ommo 1) and N-hydroxysuccinimide (23 Omg) were dissolved in anhydrous methylene chloride (100 ml), and DCC4 (13 mg) was added in an argon stream under ice cooling, followed by stirring for 30 minutes. . Thereafter, the temperature was returned to room temperature, the mixture was stirred for 1.5 hours, insolubles (DCU) were filtered off, and the filtrate was concentrated under reduced pressure to 40 ml. This was added dropwise to 600 ml of anhydrous getyl ether to form a precipitate. The precipitate was washed with anhydrous getyl ether, and the solvent was removed under reduced pressure to obtain 7.7 g (0.77 mm 01) of the title compound. Yield 77%).
- the chemically modified hG-CSF polypeptide was eluted from 11 Oml to about 145 ml after PBS was started to flow, and was a mixture of 1 to 3 molecules of polyethylene glycol derivative (M0n0 to Tri). Yield 7.8 mg, yield 19%).
- reaction solution was centrifuged at 8000 rpm for 40 minutes at 4 ° C., and ammonium sulfate was added to the supernatant (60 Om1) so that the final concentration was 0.68 M, and 1 OmM Tris-HCl buffer was added. Liquid—0.68 M ammonium sulfate (p
- the column was eluted at a flow rate of IZhr.
- the target product was eluted from 0.39 M to 0.20 M ammonium sulfate.
- the eluted fraction (800 ml) was subjected to ultrafiltration (molecular weight fraction: 10,000: YM10 (manufactured by Amicon)) and concentrated to 100 ml.
- PB molecular weight fraction: 10,000: YM10 (manufactured by Amicon)
- the acetone solution was concentrated under reduced pressure, and recrystallized by standing at room temperature to obtain 90 g of a crude product containing about 70 to 80 of the title compound.
- This was dissolved in 600 ml of distilled water, and after passing through a 2N sodium hydroxide of 1200 ml in advance, 600 ml of anion exchange resin HPA-7 equilibrated with distilled water. 5 (manufactured by Mitsubishi Chemical Corporation) and eluted with distilled water to collect a fraction containing the title compound as a main component.
- This was adjusted to pH 1.0 with 1N hydrochloric acid and extracted with black-mouthed form.
- the dried form phase was dried over anhydrous sodium sulfate, filtered off, and the solvent was removed under reduced pressure to obtain 43.6 g of the highly pure title compound (yield: 43%).
- 0.7-0M ammonium sulfate was passed through the system with a linear gradient at a flow rate of 300 Om1, 50 OmI Zhr in total to elute.
- the desired product was eluted from 0.55M ammonium sulfate to 0.08M.
- Add ammonium sulfate to the eluted fraction to a final concentration of 0.7M, and add 1 OmM Tris-HCl buffer-0.7 M ammonium sulfate (PH7.5) butyltoyopearl 6.5 OM (E. (Manufactured by USSR) (5 cm x 15 cm 300 m 1) at a flow rate of 450 m 1 Zhr.
- the uneluted portion was eluted with 1 OmM Tris-HCl buffer (pH 7.5) (18 Oml) at a flow rate of 60 ml 1 r.
- the target product was eluted between 0.4 M and 0 M ammonium sulfate.
- the eluted fraction 210 ml was subjected to ultrafiltration [molecular weight fraction 10,000: YM 10 (manufactured by Amicon)] and concentrated to 30 ml.
- the concentrate was passed through Sephacryl S-300 [Pharmacia (5 cm ⁇ 51 cm2, 1,000 ml)] filled with PBS at a flow rate of 200 mlZhr, and then passed through the PBS at the same flow rate.
- hG-CSF derivative (Tri form), in which three molecules of hG-CSF were bonded to three molecules of rubonic acid, a polyethylene glycol derivative, in the vicinity of 285 m1 to 305 m1, was added.
- reaction solution was concentrated under reduced pressure to 20 ml, and dropped into 300 ml of dried getyl ether 300 ml to cause precipitation.
- the precipitate was washed with dry getyl ether, the solvent was removed under reduced pressure, recrystallized from dried ethyl acetate, and dried under reduced pressure to obtain 4.6 g (0.46 mmol) of the title compound. Rate 8 1%).
- Tri-form A chemically modified hG-CSF derivative (Tri-form) in which three molecules of the carboxylic acid were bound was dissolved, and 2. Omg (6.6% yield) of the Tri-form was obtained.
- a chemically modified polypeptide in which at least one of amino, carboxy, mercapto or guanidino groups in the molecule of the polypeptide having hG-CSF activity is chemically modified.
- An excellent platelet growth promoting agent containing the polypeptide can be provided.
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Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK95909967T DK0744409T3 (da) | 1994-02-23 | 1995-02-23 | Accelerator for vækst af blodplader |
CA002183871A CA2183871C (en) | 1994-02-23 | 1995-02-23 | Platelet growth accelerator |
AU18237/95A AU711535B2 (en) | 1994-02-23 | 1995-02-23 | Platelet growth accelerator |
JP52225695A JP4011106B2 (ja) | 1994-02-23 | 1995-02-23 | 血小板増殖促進剤 |
US08/696,988 US6245900B1 (en) | 1994-02-23 | 1995-02-23 | Platelet production promoting agent |
EP95909967A EP0744409B9 (en) | 1994-02-23 | 1995-02-23 | Platelet growth accelerator |
DE69535801T DE69535801D1 (de) | 1994-02-23 | 1995-02-23 | Beschleuniger des plättchenwachstums |
FI963278A FI120647B (fi) | 1994-02-23 | 1996-08-22 | Verihiutaleen tuotantoa edistävä aine |
NO19963493A NO324554B1 (no) | 1994-02-23 | 1996-08-22 | Anvendelse av et kjemisk modifisert polypeptid for fremstilling av et farmasoytisk preparat for a fremme blodplateproduksjon, samt kjemisk modifisert polypeptid. |
HK98112701.8A HK1017818A1 (en) | 1994-02-23 | 1998-12-02 | Platelet growth accelerator |
US11/253,617 US7592311B2 (en) | 1994-02-23 | 2005-10-20 | Platelet production promoting agent |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6/25735 | 1994-02-23 | ||
JP2573594 | 1994-02-23 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US08696988 A-371-Of-International | 1995-02-23 | ||
US8461502A Division | 1994-02-23 | 2002-02-28 |
Publications (1)
Publication Number | Publication Date |
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WO1995023165A1 true WO1995023165A1 (fr) | 1995-08-31 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/000266 WO1995023165A1 (fr) | 1994-02-23 | 1995-02-23 | Accelerateur de croissance des thrombocytes |
Country Status (18)
Country | Link |
---|---|
US (2) | US6245900B1 (ja) |
EP (1) | EP0744409B9 (ja) |
JP (1) | JP4011106B2 (ja) |
KR (1) | KR100403688B1 (ja) |
CN (1) | CN1097058C (ja) |
AT (1) | ATE403677T1 (ja) |
AU (1) | AU711535B2 (ja) |
CA (1) | CA2183871C (ja) |
DE (1) | DE69535801D1 (ja) |
DK (1) | DK0744409T3 (ja) |
ES (1) | ES2312166T3 (ja) |
FI (1) | FI120647B (ja) |
HK (1) | HK1017818A1 (ja) |
HU (1) | HU217872B (ja) |
NO (1) | NO324554B1 (ja) |
NZ (1) | NZ281329A (ja) |
PT (1) | PT744409E (ja) |
WO (1) | WO1995023165A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998055500A1 (fr) * | 1997-06-06 | 1998-12-10 | Kyowa Hakko Kogyo Co., Ltd. | Polypeptides chimiquement modifies |
EP2526949A1 (en) | 2004-01-28 | 2012-11-28 | Kyowa Hakko Kirin Co., Ltd. | Agents for treating migraine |
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- 1995-02-23 AU AU18237/95A patent/AU711535B2/en not_active Ceased
- 1995-02-23 AT AT95909967T patent/ATE403677T1/de active
- 1995-02-23 DK DK95909967T patent/DK0744409T3/da active
- 1995-02-23 KR KR1019960704628A patent/KR100403688B1/ko not_active IP Right Cessation
- 1995-02-23 WO PCT/JP1995/000266 patent/WO1995023165A1/ja active IP Right Grant
- 1995-02-23 DE DE69535801T patent/DE69535801D1/de not_active Expired - Lifetime
- 1995-02-23 CA CA002183871A patent/CA2183871C/en not_active Expired - Lifetime
- 1995-02-23 CN CN95192717A patent/CN1097058C/zh not_active Expired - Fee Related
- 1995-02-23 EP EP95909967A patent/EP0744409B9/en not_active Expired - Lifetime
- 1995-02-23 ES ES95909967T patent/ES2312166T3/es not_active Expired - Lifetime
- 1995-02-23 JP JP52225695A patent/JP4011106B2/ja not_active Expired - Fee Related
- 1995-02-23 HU HU9602312A patent/HU217872B/hu not_active IP Right Cessation
- 1995-02-23 NZ NZ281329A patent/NZ281329A/en not_active IP Right Cessation
- 1995-02-23 PT PT95909967T patent/PT744409E/pt unknown
- 1995-02-23 US US08/696,988 patent/US6245900B1/en not_active Expired - Lifetime
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1996
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-
1998
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2005
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998055500A1 (fr) * | 1997-06-06 | 1998-12-10 | Kyowa Hakko Kogyo Co., Ltd. | Polypeptides chimiquement modifies |
US6583267B2 (en) | 1997-06-06 | 2003-06-24 | Kyowa Hakko Kogyo Co., Ltd. | Chemically modified polypeptides |
US7547675B2 (en) | 1997-06-06 | 2009-06-16 | Kyowa Hakko Kirin Co., Ltd. | Chemically modified polypeptides |
EP2526949A1 (en) | 2004-01-28 | 2012-11-28 | Kyowa Hakko Kirin Co., Ltd. | Agents for treating migraine |
Also Published As
Publication number | Publication date |
---|---|
FI120647B (fi) | 2010-01-15 |
DK0744409T3 (da) | 2008-11-10 |
CN1150434A (zh) | 1997-05-21 |
AU1823795A (en) | 1995-09-11 |
DE69535801D1 (de) | 2008-09-18 |
NO963493D0 (no) | 1996-08-22 |
ES2312166T3 (es) | 2009-02-16 |
JP4011106B2 (ja) | 2007-11-21 |
HU217872B (hu) | 2000-04-28 |
EP0744409B9 (en) | 2009-08-19 |
FI963278A (fi) | 1996-08-22 |
CN1097058C (zh) | 2002-12-25 |
EP0744409B1 (en) | 2008-08-06 |
NO963493L (no) | 1996-10-23 |
HUT74807A (en) | 1997-02-28 |
HK1017818A1 (en) | 1999-11-26 |
HU9602312D0 (en) | 1996-10-28 |
CA2183871C (en) | 2008-11-04 |
CA2183871A1 (en) | 1995-08-31 |
NZ281329A (en) | 1997-07-27 |
NO324554B1 (no) | 2007-11-19 |
US7592311B2 (en) | 2009-09-22 |
FI963278A0 (fi) | 1996-08-22 |
US6245900B1 (en) | 2001-06-12 |
US20060040865A1 (en) | 2006-02-23 |
KR100403688B1 (ko) | 2004-02-05 |
EP0744409A1 (en) | 1996-11-27 |
ATE403677T1 (de) | 2008-08-15 |
PT744409E (pt) | 2008-11-03 |
AU711535B2 (en) | 1999-10-14 |
EP0744409A4 (en) | 1998-09-09 |
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