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ATP-autocrine/paracrine release and its intracellular Ca^<2+> signals

Research Project

Project/Area Number 13670107
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General pharmacology
Research InstitutionFukuoka University

Principal Investigator

KATSURAGI Takeshi  Fukuoka University, School of Medicine, Professor, 医学部, 教授 (40004717)

Co-Investigator(Kenkyū-buntansha) UENO Shinya  Hamamatsu Medical College, Associate Professor, 助教授 (00312158)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2002: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2001: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsRelease mechanism of ATP / Intracellular Ca^<2+> signals / Cultured smooth muscle cells / Angiotensin II / AT_1-receptor / Inositol(1,4,5)trisphosphate / Caffeine / Ryanodine receptor / 初代培養結腸紐平滑筋細胞 / ATPの放出機構 / オートクリン / パラクリン物質 / P2-受容体刺激 / 平滑筋細胞 / ryanodine(RyR-2)受容体 / InsP_3受容体 / 小胞体からのCa^<2+>遊離
Research Abstract

The studies were undertaken to determine what kind of intracellular Ca^<2+> signals is involved in the autocrine/paracrine release of ATP evoked by receptor stimulation from cultured smooth muscle cells (SMCs) from guinea-pigs. Angiotensin II (Ang II)(0.3-1 μM) elicited substantial release of ATP from cultured taenia coli SMCs, but not from a human fibroblast cell line. However, Ang II even at 10 μM failed to cause a leakage of lactate dehydrogenase (LDH) from the SMCs. The release of ATP by Ang II was suppressed by 10 μM SC52458, an AT_1 receptor antagonist, not by 10 μM PD123319, an AT_2 receptor antagonist. The evoked release of ATP was almost completely inhibited in the presence of 10 μM U-73122, a phospholipase C inhibitor, and 0.5 μM thapsigargin, a Ca^<2+>-ATPase inhibitor. Furthermore, the release was hampered by 50 μM BAPTA/AM, an intracellular Ca^<2+> chelator, but not by 0.1 μM nifedipine, a voltage gated Ca^<2+> channel inhibitor. The basal release of ATP was increased by B … More APTA/AM, but was reduced by U-73122. Ang II enhanced instantaneously inositol(1,4,5)trisphosphate (Ins(1,4,5)P_3) accumulation in the cells. The enhancing effect was perfectly antagonized by SC52458. These findings suggest that intracellular Ca^<2+> signals activated via stimulation of Ins(1,4,5)P_3 receptor are involved in the release of ATP evoked by Ang II. In Ca^<2+> free Krebs solution, caffeine at 3 mM instantaneously caused a remarkable release of ATP from cultured vas deferens SMCs, not from a human fibroblast cell line. The evoked release of ATP was markedly abolished by treatment with BAPTA/AM and thapsigargin. Furthermore, the release was completely inhibited by ryanodine and tetracaine, ryanodine receptor antagonists. From the study of [Ca^<2+>]i measurement with fluo 4, caffeine induced an elevation of [Ca^<2+>]i and the effect of caffeine was absolutely antagonized by tetracaine. In RT-PCR studies, the expression of mRNA from RyR-2, but not from RyR-1, was observed in vas deferens SMCs as well as ileal longitudinal SMCs from guinea-pigs. These findings suggest that the release of ATP induced by caffeine is triggered by the intracellular Ca^<2+> signal via ryanodine receptor (RyR-2) stimulation on endoplasmic/sarcoplasmic reticulum. Less

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Kazushi Kushiku: "Upregulation of immunoreactive angiotensin II release and angiotensinogen mRNA expression by high-frequency preganglionic stimulation at the canine cardiac sympathetic ganglia"Circulation Res.. 88. 110-116 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Masayoshi Abe: "Contribution of anaphylatoxin C5a to late airway responses after repeated exposure of antigen to allergic rats"J. Immunol.. 167. 4651-4660 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tsuyoshi Ueno: "Bidirectional modulation of P2X receptor-mediated response by divalent cations in rat dorsal motor nucleus of the vagus neurons"J. Neurochem.. 78. 1009-1018 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Shinya Ueno: "Measurement of dorsal root ganglion P2X mRNA by SYBR Green fluorescence"Brain Res. Protoc.. 10. 95-101 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takeshi Katsuragi: "Inositol(1,4,5)trisphosphate signal triggers a receptor-mediated ATP release"Biochem. Biophys. Res. Commun.. 293. 686-690 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takeshi Katsuragi: "ATP is released by ryanodine-receptor stimulation with caffeine from cultured smooth muscle cells"Mol. Pharmacol.. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kushiku, K., Yamada, H., Shibata K., Tokunaga, R., Katsuragi, T. and Furukawa, T.: "Upregulation of immunoreactive angiotensin II release and angiotensinogen mRNA expression by high-frequency preganglionic stimulation at the canine cardiac sympathetic ganglia"Circulation Res.. 88. 110-116 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Abe, M., Shibata, K., Akatsu, H., Shimizu, N., Sakata, N., Katsuragi, T. and Okada, H.: "Contribution of anaphylatoxin C5a to late airway responses after repeated exposure of antigen to allergic rats"J. Immunol.. 167. 4651-4660 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ueno, T., Ueno, S., Kakazu, Y., Akaike, N. and Nabekura, J.: "Bidirectional modulation of P2X receptor-mediated response by divalent cations in rat dorsal motor nucleus of the vagus neurons"J. Neurochem.. 78. 1009-1018 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ueno, S., Yamada, H., Moriyama T., Honda, K., Takano, Y., Kamiya, H. and Katsuragi, T.: "Measurement of dorsal root ganglion P2X mRNA by SYBR Green fluorescence"Brain Res. Protoc.. 10. 95-101 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Katsuragi, T., Sato, C., Lou, G. and Honda, K.: "Inositol(1,4,5)trisphosphate signal triggers a receptor-mediated ATP release"Biochem. Biophys. Res. Commun.. 293. 686-690 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Katsuragi, T., Sato, C., Usune, S. and Ueno, S.: "ATP is released by ryanodine-receptor stimulation with caffeine from cultured smooth muscle cells"Mol. Pharmacol.. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Shinya Ueno: "Measurement of dosal reot ganglion P2X mRNA by SYBR Green fluorescence"Brain Res. Protoc.. 10・2. 95-101 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takeshi Katsuragi: "Inositol(1,4,5)trisphosphate signal triggers a receptor-mediated ATP release"Biochem. Biophys. Res. Comm.. 293. 686-690 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Masayoshi Abe: "cDNA cloning and expression of rat leukotriene C_4 synthase : elevated expression in rat basophilic leukemia-1 cells after treatment with retinoic acid"Prostaglandins Leukot. Essent. Fatty Acid. 67・5. 319-326 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Naoaki Harada: "Iscchemia/reperfusion-induced increase in the hepatic level of prostacyclin is mainly mediated by activation of capsaicin-sensitive sensory neurons in rats"J. Lab. Clin. Med.. 139. 218-226 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takeshi Katsuragi: "Inositol (1,4,5) trisphosphate signal triggers a receptor-mediated ATP release"Biochem. Biophys. Res. Comm.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sono Fujiki: "Differences in the signalling transduction pathways involved in the P2-receptor mediated ATP release from the guinea pig vas deferens and ileum"Naunyn-Schmiedeb. Arch. Pharmacol.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] naoaki Harada: "Ischemia/reperfusion-induced increase in the hepatic level of prostacyclin is mainly mediated by activation of capsaicin-sensitive sensory neurons in rats"J. Lab. Clin. Med. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Masayoshi Abe: "Contribution of anaphylatoxin C5a to late airway responses after repeated exposure of antigen to allergic rats"J. Immunol.. 167. 4651-4660 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kazushi Kushiku: "Upregulaton of immunoactive angiotensin II release and angiotensinogen mRNA expression by high-frequency preganglionic stimlation at the canine cardiac sympathetic ganglia"Circ. Res.. 88. 110-116 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shinya Ueno: "Bidirectional modulation of P2X receptor-mediated response by divalent cations in rat dosal motor nucleus of the vagus neurons"J. Nurochem.. 78. 1009-1018 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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