WO1994017181A1 - Nucleotidase cyclique et procede de production - Google Patents
Nucleotidase cyclique et procede de production Download PDFInfo
- Publication number
- WO1994017181A1 WO1994017181A1 PCT/JP1994/000121 JP9400121W WO9417181A1 WO 1994017181 A1 WO1994017181 A1 WO 1994017181A1 JP 9400121 W JP9400121 W JP 9400121W WO 9417181 A1 WO9417181 A1 WO 9417181A1
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- WIPO (PCT)
- Prior art keywords
- enzyme
- present
- concentration
- enzyme activity
- camp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/16—Hydrolases (3) acting on ester bonds (3.1)
Definitions
- the present invention relates to a novel A-like nucleotide degrading enzyme and a method for producing the same.
- c AMP cyclic adenosine 3, ⁇ -monophosphate
- cGMP cyclic guanosine 3 ', 5'-monophosphate
- Cyclic nucleotide degrading enzymes cyclic nucleotide phosphodiesterases
- cyclic nucleotide phosphodiesterases are known as enzymes that degrade cAMP and cGMP, and in vivo, cyclic nucleotides are degraded. It plays an important role in providing for metabolism of leotide. Therefore, drug-induced inhibition of cyclic nucleotide degrading enzymes has a significant effect on cyclic nucleotide metabolism, and ultimately, cell-organization.
- cyclic nucleotide degrading enzyme inhibitors have been It is being developed as a drug.
- the basis for this development was to analyze selective rutted rivers for cyclic nucleotide degrading enzymes and to elucidate screening methods and mechanisms of blockade. It is important.
- An object of the present invention is to provide a novel cyclic nucleotide-decomposing enzyme for producing a new drug.
- the present inventor has conducted intensive studies in view of the above objectives.)) An organ or tissue of an object has a new type different from a conventionally known isosome family. A cyclic nucleotide degrading enzyme was found. This inventor is the first to separate and purify the enzyme and clarify its properties.
- the present invention is at least a cyclic nucleotide degrading enzyme having the following physicochemical properties (1) to m (hereinafter referred to as the enzyme of the present invention), and the present invention relates to animal organs and the like. Or the tissue is excised, and the homogenate is eluted by a linear gradient elution method using a Monoq (Mono-Q) HR ion exchange column.
- the following physicochemical properties characterized by
- a method for producing the enzyme of the present invention which has (1) to (7).
- the Km value for cAMP is 0.1 ⁇ ⁇ . ⁇ , and the Km value for cG ⁇ is 1.78 ⁇ M.
- Influence of inhibitor 50% inhibition by dicardipine is more than 300 ⁇ M, and depends on silosol and SK & F 924.
- the 50% inhibition m degree by 50% inhibition is 300 M or more, and the 50% inhibition ⁇ degree by mouth replenishment and R202-174 is more than 300 jiU. Not activated by the power module. c Not activated by G ⁇ ⁇ .
- FIG. 1 shows the relationship between ⁇ ⁇ and the enzyme activity of the enzyme of the present invention.
- FIG. 2 shows the effect of temperature on the enzyme activity of the enzyme of the present invention.
- FIG. 3 shows the effect of temperature on the enzyme activity of the enzyme of the present invention.
- FIG. 4 shows the effect of metal ions on the enzyme activity of the enzyme of the present invention.
- Fig. 5 shows Q — S e p h a r o s e F a s t
- FIG. 6 shows the relationship between the fraction and the enzymatic activity when subjected to calmodulin, semaphore, and sufficiency.
- Fig. 7 shows the relationship between the fraction and the enzyme activity when ⁇ 0 ⁇ 0—QHR10 / 10 is applied to the anion-exchange column.
- the above-mentioned present invention is widely found, especially in the brain of mammals, and also inhibits cyclic nucleotide degrading enzymes such as myocardium, lung,, smooth muscle, and platelets. ⁇ Distributed in living animal organs or tissues.
- the enzyme of the present invention is obtained by removing an organ or tissue of an animal, homogenizing the same, and ultracentrifuging the homogenate to obtain a glass wool. And the filtrate is subjected to ion exchange chromatography such as Q-Sepharose Fast Flow negative ion exchange chromatography. Purification is performed using a module such as a module-separator-finity column, and then a straight line using a monocure-HR ion exchange column. Separation and purification can be achieved by elution by a static concentration gradient elution method.
- the feature of the production method of the present invention resides in the use of a Monochrome HR ion-exchange column, whereby the enzyme of the present invention can be found for the first time. Therefore, it does not depend on the method of other processes such as extraction of organs or tissues, homogenization, ultracentrifugation, and elution. this These steps can be performed by methods generally used in the art.
- [8 - 3 H] c AMP or is - when the action of the enzyme of the present invention to a substrate to [8 3 H] c GMP, respectively [8 - 3 H] 5 ' - AMP (5 -adenosine monop osphate ) Or [8 — 3 H] 5'-GMP (5'-guanosine
- PDEI cyclic nucleotide degrading enzymes
- the enzymatic activity of the enzyme of the present invention was determined by changing the concentrations of the substrates cAMP and cGMP, and the Km value was determined by a double reciprocal plot.
- the value of the Km value for cAMP 0.11 0M (0.109 ⁇ 0.008 ⁇ M)
- the value of Km value for cGMP 1.
- a value of 78 ⁇ M (1.78 ⁇ 0.042 2M) was shown, indicating that the specificity for cAMP was high.
- the enzyme activity of the enzyme of the present invention was measured by changing the concentration of these inhibitors, and Existence The concentration of the inhibitor that inhibits 50% by -100% of the enzyme activity below- ⁇ .
- the enzyme of the present invention is not inhibited by two-potency ludipine as compared to PDEI, and compared to PDE II, it has SKF9412 ⁇ It is not hindered by the boules. In addition, it can be said that it is not inhibited by rolipram or Ro20-1724 compared with PDEIV.
- the present invention is not activated by calcium-modululin. Therefore, it is ffl different from PDE I activated by CAL.
- the present element is different from PDHE which is not activated by cGMp but activated by cGMP.
- Magnesium is the most effective gold ion for the enzyme of the present invention, and]! 3 ⁇ 4large effect was observed at a concentration of 5 mM or more (Fig. 4). ).
- Mangan showed a relatively facilitating effect.
- Co 2 + exhibited an inhibitory effect at a concentration of 100; M or higher, and had a promoting effect at lower concentrations.
- EGTA 0.1 mM dithiothreitol, 20 ⁇ M mouthpiece, 10 g Zm 1 large liposome inhibitor 3 ⁇ 4- ⁇ , 1 ⁇ gZm Evening chin, 1 ⁇ ⁇ g Z m 1 Kimos Evening chin, 1 Mp APMSF ((p-ami di nopheny]
- buffer B [30 mM sodium phosphate (pH 7.2), 0.1 mM dithiothreitol, 0.1 M p [APMSF]] to a Q-Sepharose Fast Flow (manufactured by Pharmacia) anion exchange column (1.6 x 20 cm) at a flow rate of 1.0 m1 / min. I put it.
- the column was washed with 300 ml of buffer B.
- Cytoplasmic cyclic nucleotide-degrading enzyme was used in a total amount of buffer solution B containing a sodium acetate concentration gradient (0.03 to 1.0 M) in a total amount of 420 m1. Eluted at a flow rate of / min.
- the eluate is 1 flux We collected 7 m 1 per yon.
- Figure 5 shows the elution pattern.
- the enzyme activity was determined by the following two-step Atssay method.
- [8 - 3 H] c AMP or the [8 - 3 H] a c GMP as a substrate when the action of the enzyme of the present invention which is rat cerebral cortex or al separation made in the examples, respectively [8 — 3 H] 5 '— AMP (5 -adenosine monophosphate or [8 — 3 H] 5'-GMP (5 '-guanos i ne
- the enzymatic activity of the enzyme of the present invention was changed by changing the concentration of the substrate cAMP or cGMP from 0.06 M to 100 M in the same manner as in the method for measuring the enzymatic activity described in the Examples.
- the Km value was determined by the double reciprocal plot.
- the enzyme of the present invention has a Km value power of 0.1 .mu.m (0.109 ⁇ 0.008 ⁇ M) for cAMP and a 1.78% Km value for cGMP. M (1.7 8 Sat
- Fig. 1 shows the IM1 relationship between ⁇ of 5 mM Tris-HCl buffer containing 5 mM magnesium chloride (MgC ⁇ 2 ) and the enzyme activity of the present enzyme. showed that. Human activity was observed at ⁇ ⁇ 1 ⁇ .
- the enzyme activity of the enzyme of the present invention was determined by changing the concentration of various inhibitors, and the concentration of the inhibitor that inhibited the enzyme activity by 50% assuming that the enzyme activity in the absence of the inhibitor was 100% was determined. More specifically, in the method for measuring enzyme activity described in the examples, when reacting the enzyme of the present invention, various concentrations of inhibitors were further added to the reaction solution to measure the enzyme activity.
- the 50% inhibitory concentration of 50% inhibition by dicardipine is more than 300 ⁇ M, and the 50% inhibition concentration by Syros evening and SK & F 940 is more than 300 ⁇ M.
- Roli plum and R 0 2 0 — 1 The 50% Hi harm according to 724 is more than 300M.
- 50% inhibitory concentration by IBMX a non-selective inhibitor
- the inhibition constant was determined by the concentration of cAMP and the inhibitory papaverine, which were the bases, to increase the enzyme activity, and determined by the Dickson plot.
- bovine brain power 0.4 ⁇ g Zm1 power module produced in parallel and 0.2 mM chloride water potassium chloride were added, and their effects on the enzyme of the present invention were analyzed.
- Activator of PDEI Significant difference in the enzymatic activity of the enzyme of the present invention between the presence of calcium-calmodulin and the presence of EGTA (2 mM), which is a canoleate chelate. was not recognized.
- the enzyme activity of the enzyme of the present invention was measured by changing the concentration of 5 mM MgC12 in the reaction solution. As a result, 1 M (1 X 1 0 "6) M g C 1 2 or et present invention the enzyme is activated, 5 m M
- a novel cyclic nucleotide degrading enzyme, I was released by the present inventors.
- Several enzyme inhibitors are being developed as new medicines.
- INDUSTRIAL APPLICABILITY According to the present invention, a screening method for analyzing the selective inhibitory effect on a ⁇ -nucleotide-degrading enzyme, which is the basis for the development of a pharmaceutical, and the elucidation of the mechanism of action are disclosed. It is now possible.
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Enzymes And Modification Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950702740A KR960700338A (ko) | 1993-01-29 | 1994-01-28 | 환상 뉴클레오티드 분해효소 및 그의 제조법 |
| AU58916/94A AU669969B2 (en) | 1993-01-29 | 1994-01-28 | Cyclic nucleotidase and process for producing the same |
| CA002153265A CA2153265A1 (en) | 1993-01-29 | 1994-01-28 | Cyclic nucleotide phosphodiesterase and a method for production thereof |
| US08/481,442 US5728563A (en) | 1993-01-29 | 1994-01-28 | Cyclic nucleotide phosphodiesterase and a method for production thereof |
| EP94905225A EP0682109A4 (en) | 1993-01-29 | 1994-01-28 | CYCLIC NUCLEOTIDASE AND METHOD FOR PRODUCING THE SAME. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1315093 | 1993-01-29 | ||
| JP5/13150 | 1993-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994017181A1 true WO1994017181A1 (fr) | 1994-08-04 |
Family
ID=11825144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1994/000121 Ceased WO1994017181A1 (fr) | 1993-01-29 | 1994-01-28 | Nucleotidase cyclique et procede de production |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5728563A (ja) |
| EP (1) | EP0682109A4 (ja) |
| KR (1) | KR960700338A (ja) |
| AU (1) | AU669969B2 (ja) |
| CA (1) | CA2153265A1 (ja) |
| WO (1) | WO1994017181A1 (ja) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2238283C (en) | 1997-05-30 | 2002-08-20 | Cell Pathways, Inc. | Method for identifying compounds for inhibition of neoplastic lesions, pharmaceutical compositions from such compounds and uses of such compounds and compositions for treating neoplastic lesions |
| US5858694A (en) * | 1997-05-30 | 1999-01-12 | Cell Pathways, Inc. | Method for identifying compounds for inhibition of cancerous lesions |
| US6410584B1 (en) * | 1998-01-14 | 2002-06-25 | Cell Pathways, Inc. | Method for inhibiting neoplastic cells with indole derivatives |
| EP0980911A3 (en) * | 1998-06-04 | 2000-04-05 | Bayer Ag | Phosphodiesterase |
| US6200771B1 (en) | 1998-10-15 | 2001-03-13 | Cell Pathways, Inc. | Method of using a novel phosphodiesterase in pharmaceutical screeing to identify compounds for treatment of neoplasia |
| US6130053A (en) * | 1999-08-03 | 2000-10-10 | Cell Pathways, Inc. | Method for selecting compounds for inhibition of neoplastic lesions |
| US6133271A (en) * | 1998-11-19 | 2000-10-17 | Cell Pathways, Inc. | Method for inhibiting neoplastic cells and related conditions by exposure thienopyrimidine derivatives |
| US6187779B1 (en) | 1998-11-20 | 2001-02-13 | Cell Pathways, Inc. | Method for inhibiting neoplastic cells and related conditions by exposure to 2,8-disubstituted quinazoline derivatives |
| US6369092B1 (en) | 1998-11-23 | 2002-04-09 | Cell Pathways, Inc. | Method for treating neoplasia by exposure to substituted benzimidazole derivatives |
| US6486155B1 (en) | 1998-11-24 | 2002-11-26 | Cell Pathways Inc | Method of inhibiting neoplastic cells with isoquinoline derivatives |
| US6034099A (en) * | 1998-11-24 | 2000-03-07 | Cell Pathways, Inc. | Method for inhibiting neoplastic lesions by administering 4-(arylmethylene)- 2, 3- dihydro-pyrazol-3-ones |
| US6077842A (en) * | 1998-11-24 | 2000-06-20 | Cell Pathways, Inc. | Method of inhibiting neoplastic cells with pyrazolopyridylpyridazinone derivatives |
| US6025394A (en) | 1999-01-29 | 2000-02-15 | Cell Pathways, Inc. | Method for treating patients with acne by administering substituted sulfonyl indenyl acetic acids, amides and alcohols |
| US6020379A (en) * | 1999-02-19 | 2000-02-01 | Cell Pathways, Inc. | Position 7 substituted indenyl-3-acetic acid derivatives and amides thereof for the treatment of neoplasia |
| US6555547B1 (en) | 2000-02-28 | 2003-04-29 | Cell Pathways, Inc. | Method for treating a patient with neoplasia by treatment with a vinca alkaloid derivative |
| US6569638B1 (en) | 2000-03-03 | 2003-05-27 | Cell Pathways, Inc | Method for screening compounds for the treatment of neoplasia |
| US20080075785A1 (en) * | 2006-09-22 | 2008-03-27 | San-Laung Chow | Controlled release hydrogel formulation |
| US20110165236A1 (en) * | 2006-09-22 | 2011-07-07 | Biokey, Inc. | Controlled release hydrogel formulation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69233785D1 (de) * | 1991-04-19 | 2010-07-08 | Univ Washington | diert |
-
1994
- 1994-01-28 AU AU58916/94A patent/AU669969B2/en not_active Ceased
- 1994-01-28 EP EP94905225A patent/EP0682109A4/en not_active Ceased
- 1994-01-28 KR KR1019950702740A patent/KR960700338A/ko not_active Withdrawn
- 1994-01-28 CA CA002153265A patent/CA2153265A1/en not_active Abandoned
- 1994-01-28 US US08/481,442 patent/US5728563A/en not_active Expired - Fee Related
- 1994-01-28 WO PCT/JP1994/000121 patent/WO1994017181A1/ja not_active Ceased
Non-Patent Citations (3)
| Title |
|---|
| J. Biol. Chem., Vol. 263, No. 30 (1988), KRANIAS E.G. et al.: "Purification and Characterization of Phospholamban Phosphatase from Cardiacmuscle", p. 15681-15687. * |
| Mol. Pharmacol., Vol. 29, No. 5 (1986), HARRISON S.A. et al.: "Isolation and Characterization of Bovine Cardiac Muscle Cyclic GMP-Inhibited Phosphodiesterase A Receptor for New Cardiotonic Drugs", p. 506-514. * |
| See also references of EP0682109A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US5728563A (en) | 1998-03-17 |
| AU5891694A (en) | 1994-08-15 |
| AU669969B2 (en) | 1996-06-27 |
| EP0682109A1 (en) | 1995-11-15 |
| CA2153265A1 (en) | 1994-08-04 |
| KR960700338A (ko) | 1996-01-19 |
| EP0682109A4 (en) | 1997-06-04 |
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