Antiplatelet and Antithrombotic Effects of a Novel Selective Phosphodiesterase 3 Inhibitor, NSP-513, in Mice and Rats.
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- Hirose Hiroyasu
- Tsukuba Research Institute,Banyu Pharmaceutical Co.,Ltd.,Okubo 3,Tsukuba 300-2611,Japan
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- Kimura Toshifumi
- Tsukuba Research Institute,Banyu Pharmaceutical Co.,Ltd.,Okubo 3,Tsukuba 300-2611,Japan
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- Okada Megumu
- Tsukuba Research Institute,Banyu Pharmaceutical Co.,Ltd.,Okubo 3,Tsukuba 300-2611,Japan
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- Itoh Yoshiki
- Tsukuba Research Institute,Banyu Pharmaceutical Co.,Ltd.,Okubo 3,Tsukuba 300-2611,Japan
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- Ishida Fumiaki
- Tsukuba Research Institute,Banyu Pharmaceutical Co.,Ltd.,Okubo 3,Tsukuba 300-2611,Japan
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- Mochizuki Nobuo
- Odawara Research Center,Nippon Soda Co.,Ltd.,Takada 345,Odawara 250-0280,Japan
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- Nishibe Tadayuki
- Odawara Research Center,Nippon Soda Co.,Ltd.,Takada 345,Odawara 250-0280,Japan
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- Nishikibe Masaru
- Tsukuba Research Institute,Banyu Pharmaceutical Co.,Ltd.,Okubo 3,Tsukuba 300-2611,Japan
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Abstract
We investigated the effects of NSP-513, (R)-4, 5-dihydro-5-methyl-6-[4-(2-propyl-3-oxo-1-cyclo-hexenyl)amino]phenyl-3(2H)-pyridazinone, on phosphodiesterase(PDE)isozyme activities, in vitro platelet aggregation and in vivo thrombus formation.NSP-513 selectively inhibited human platelet PDE 3 isozyme with an IC50 value of 0.039μM.In an in vitro human platelet aggregation assay, the IC50 values(μM)of NSP-513 for platelet aggregation induced by collagen, U-46619, arachidonic acid, adenosine diphosphate(ADP), epinephrine and thrombin were 0.31, 0.25, 0.082, 0.66, 0.23 and 0.73, respectively.In a mouse pulmonary thromboembolism model, orally administered NSP-513 showed in vivo antithrombotic effects that were 320 to 470 times more potent than those of cilostazol.In a rat carotid arterial thrombosis model, intraduodenally administered NSP-513(0.1mg/kg), cilostazol(30mg/kg)and aspirin(30mg/kg)reduced thrombus formation by 75%, 66% and 48%, respectively.However, intravenously administered dipyridamole(10mg/kg)did not significantly prevent thrombus formation.These results demonstrate that NSP-513 has the potential to prevent not only in vitro platelet aggregation but also in vivo thrombus formation and indicate that the highly selective PDE 3 inhibitory effect of NSP-513 may make this compound useful for assessing the physiological role of PDE 3.
Journal
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- The Japanese Journal of Pharmacology
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The Japanese Journal of Pharmacology 82 (3), 188-198, 2000
The Japanese Pharmacological Society
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Details 詳細情報について
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- CRID
- 1390282679261583360
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- NII Article ID
- 10008183384
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- NII Book ID
- AA00691188
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- COI
- 1:CAS:528:DC%2BD3cXitFOitbk%3D
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- ISSN
- 13473506
- 00215198
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- NDL BIB ID
- 5320975
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- PubMed
- 10887949
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- Web Site
- https://ndlsearch.ndl.go.jp/books/R000000004-I5320975
- https://api.elsevier.com/content/article/PII:S0021519819306845?httpAccept=text/xml
- https://api.elsevier.com/content/article/PII:S0021519819306845?httpAccept=text/plain
- https://www.jstage.jst.go.jp/article/jjp/82/3/82_3_188/_pdf
- https://search.jamas.or.jp/link/ui/2000164815
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed