Regulatory mechanisms and pathophysiological role of endothelin receptor-operated TRPC channels
Project/Area Number |
21790236
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
General pharmacology
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Research Institution | Hokkaido University |
Principal Investigator |
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | エンドセリン受容体 / TRPCチャネル / 受容体作動性Ca^<2+>流入 / ストア作動性Ca^<2+>流入 / カルモジュリン / プロテインキナーゼA / リン酸化 / エンドセリンA型受容体 / 抑制性制御機構 / Phos-tag / in vitro kinase assay / カルシウムイオン / HEK293細胞 / エンドセリン受容体結合蛋白質 / STIM1 / ORAI1 / 蛋白-蛋白相互作用 |
Research Abstract |
The purpose of this study is to elucidate transient receptor potential canonical(TRPC) channels functioning as endothelin type A receptor(ET_AR)-operated Ca^<2+> channel and its regulatory mechanism. The results obtained from molecular pharmacological studies indicate that(1) both TRPC3 and TRPC6 contribute to ET_AR-operated Ca^<2+> entry,(2) G_<q/11> protein, phospholipase C, Src, phosphoinositide 3-kinase, calmodulin(CaM), and CaM/IP_3 receptor binding domain at the C terminus of TRPC3 and TRPC6 are involved in ET_AR-mediated Ca^<2+> entry via TRPC3 and TRPC6, and(3) TRPC6 is negatively regulated by protein kinase A-mediated phosphorylation of Ser^<28>
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Adenylate cyclase/cAMP/protein kinase A signaling pathway inhibits endothelin type A receptor-operated Ca^<2+> entry mediated via transient receptor potential canonical 6 channels2012
Author(s)
Horinouchi, T., Higa, T., Aoyagi, H., Nishiya, T., Terada, K., Miwa, S.
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Journal Title
J. Pharmacol. Exp. Ther
Volume: 340
Pages: 143-151
Related Report
Peer Reviewed
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[Journal Article] Function and regulation of endothelin type a receptor-operated transient receptor potential canonical channels2011
Author(s)
Horinouchi, T., Terada, K., Higa, T., Aoyagi, H., Nishiya, T., Suzuki, H., Miwa, S.
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Journal Title
J. Pharmacol. Sci.
Volume: 117
Pages: 295-306
NAID
Related Report
Peer Reviewed
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[Journal Article] Endothelin type B receptor-induced sustained Ca^<2+> influx involves G_<q/11>/phospholipase C-independent, p38 mitogen-activated protein kinase-dependent activation of Na^+/H^+exchanger2010
Author(s)
Higa, T., Horinouchi, T., Aoyagi, H., Asano, H., Nishiya, T., Nishimoto, A., Muramatsu, I., Miwa, S.
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Journal Title
J. Pharmacol. Sci.
Volume: 113
Pages: 276-280
NAID
Related Report
Peer Reviewed
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[Journal Article] Jab1 regulates levels of endothelin type A and B receptors by promoting ubiquitination and degradation2010
Author(s)
Nishimoto, A., Lu, L., Hayashi, M., Nishiya, T., Horinouchi, T., Miwa, S.
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Journal Title
Biochem Biophys Res Commun.
Volume: 391
Pages: 1616-1622
NAID
Related Report
Peer Reviewed
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[Journal Article] Differential coupling of human endothelin type A receptor to G_<q/11> and_G<12> proteins : the functional significance of receptor expression level in generating multiple receptor signaling2009
Author(s)
Horinouchi, T., Asano, H., Higa, T., Nishimoto, A., Nishiya, T., Muramatsu, I., Miwa, S.
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Journal Title
J. Pharmacol. Sci.
Volume: 111
Pages: 338-351
Related Report
Peer Reviewed
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[Presentation] Molecular mechanism of ET_AR-operated Ca^<2+> entry via TRPC channels and visualization of homo- and heteromeric TRPC3/6 interaction in living cells using BiFC.2010
Author(s)
Horinouchi, T., Higa, T., Aoyagi, H., Asano, H., Nishiya, T., Nishimoto, A., Miwa, S.
Organizer
16th World Congress of Basic and Clinical Pharmacology.
Place of Presentation
Bella Center(デンマーク)
Year and Date
2010-07-19
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