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CHARACTERISTIC OF INTRACELLULAR CALCIUM STORES RESPONSIBLE FOR CATECHOLAMINE SECRETION IN ADRENAL MEDULLARY CHROMAFFIN CELLS

Research Project

Project/Area Number 03454103
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 基礎獣医学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

NAKAZATO Yoshikazu  DEPARTMENT OF VETERINARY PHARMACOLOGY, HOKKAIDO UNIVERSITY, 獣医学部, 教授 (60001525)

Co-Investigator(Kenkyū-buntansha) OHTA Toshio  DEPARTMENT OF VETERINARY PHARMACOLOGY, HOKKAIDO UNIVERSITY, 獣医学部, 助手 (20176895)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1992: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1991: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsCa^<2+> store / Ca^<2+>-induced Ca^<2+> release / Caffeine / Catecholamine / Whole cell patch clamp / Nicotinic currents / Fure 2 / Concentration of intracellular Ca^<2+> / ^<45>Ca^<2+> / 小胞体 / 分泌顆粒 / 電位依存性イオンチャネル / 潅流副腎 / カテコ-ルアミン / 副腎随質培養細胞 / ムスカリン受溶体刺激 / リアノジン
Research Abstract

We have found that unlike catecholamine secretion induced by nicotinic receptor activation, the secretory response to muscarinic receptor stimulation is not simply resulting from increase in Ca^<2+> influx,but from mobilization of intracellulary stored Ca^<2+> in cat adrenal glands (Nakazato et al.,1984). Since the same was true in guinea-pig adrenal glands, Ca^<2+> stores linked to muscarinic receptor have been suggested to be present in the adrenal chromaffin cells, regardless of the species. In this research project, first, the possibility of the presence of Ca^<2+> stores other than those linked to muscarinic receptors was determined by using caffeine which has been known to initiate Ca^<2+>-induced Ca^<2+> release from sarcoplamic reticulum of the muscle. Secondly, the ability of subcellular organella to accumulate ^<45>Ca^<2+> was studied to specify the candidate for Ca^<2+> store, thirdly the effect of caffeine on Ca^<2+> mobilization or catecholamine secretion induced by acetyl … More choline and finally, the effect on membrane currents under the condition of whole cell patch clamp were investigated. The results are summarized in the following; (1) caffeine caused a marked increase in catecholamine secretion from adrenal chromaffin cells of cat, guinea-pig and ox, (2) the effectiveness of caffeine was depressed by the presence of extracellular Ca^<2+>, Mg^<2+> and/or Na^+, (3) ryanodine blocked the secretory response to caffeine, but partially inhibited the response to muscarinic stimulation. (4) Both endoplasmic reticulum and secretory granules had the capacity to accumulate ^<45>Ca^<2+> in a similar extent. (5) Caffeine inhibited catecholamine secretion induced by acetylcholine, high K^+ and veratridine. (6) Acetylcholine initiated nicotinic receptor current and depolarization evoked voltage-dependent Na^+, K^+ and Ca^<2+> in chromaffin cells and (7) all of these currents were inhibited by caffeine. These results suggest that the ineffectiveness of caffeine in releasing catecholamine in the presence of extracellular Ca^<2+> and/or Na^+ is due to the inhibitory action of caffeine itself on both receptor linked and volgate- dependent ionic channels. Less

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] TERAOKA,H.: "RYANODINE INHIBITS CAFFEINE-EVOKED Ca^<2+> MOBILIZATION AND CATECHOLAMINE SECRETION FROM CULTURED BOVINE ADRENAL CHROMAFFIN CELLS" J.NEURPCHEM. 57. 1884-1890 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATOH,E.: "EFFECTS OF MONENSIN AND VERATRIDINE ON ACETYLCHOLINE RELEASE AND CYTOSILIC FREE Ca^<2+> LEVELS IN CEREBROCORTICAL SYNAPTOSOMES OF RATS" J.NAUROCHEM. 57. 1270-1275 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATOH,E.: "MODE OF ACTION OF PALYTOXIN ON THE RELEASE OF ACETYLCHOLINE FROM RAT CEREBROCORTICAL SYNAPTOSOMES" J.NEUROCHEM. 57. 1276-1280 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] NAKAZATO,Y.: "COMRARISONS OF THE EFFECT OF RYANODINE ON CATECHOLAMINE SECRETION EVOKED BY CAFFEINE AND ACETYLCHOLINE IN PERFUSED ADRENAL GLANDS OF GUINEA-PIG" BR.J.PHARMACOL. 105. 597-802 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATOH,E.: "ON THE MECHANISM OF OUANAIN-INDUCED RELEASE OF ACETYLCHOLINE FROM SYNAPTOSOMES" J.NEUROCHEM. 58. 1038-1044 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] NAKAZATO,Y.: "INHIBITORY EFFECTS OF CAFFEINE ON AGONIST-INDUCED CATECHOLAMINE SECRETION FROM ADRENAL CHROMAFFIN CELLS" 7TH INTERNATIONAL CATECHOLAMINE SYMPOSIUM,ABSTRACTS. 228 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] TERAOKA,H.: "DIFFERENCE IN THE EFFECTIVENESS OF Ca^<2+> EVOKE CATECHOLAMINE SECRETION BETWEEN ADRENALINE AND NORADRENALINE-CONTAINING CELLS OF BOVINE ADRENAL MEDULLA" J.NEUROCHEM. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] TERAOKA, H.: "RYANODINE INHIBITS CAFFEINE-EVOKED Ca^<2+> MOBILIZATION AND CATECHOLAMINE SECRETION FROM CULTURED BOVINE ADRENAL CHROMAFFIN CELLS" J. NEUROCHEM.57. 1884-1890 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATOH, E.: "EFFECTS OF MONENSIN AND VERATRIDINE ON ACETYLCHOLINE RELEASE AND CYTOSOLIC FREE Ca^<2+> LEVELS IN CEREBROCORTICAL SYNAPTOSOMES OF RATS" J. NEUROCHEM.57. 1270-1275 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATOH, E.: "MODE OF ACTION OF PALYTOXIN ON THE RELEASE OF ACETYLCHOLINE FROM RAT CEREBROCORTICAL SYNAPTOSOMES" J. NEUROCHEM.57. 1276-1280 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] NAKAZATO, Y.: "COMPARISONS OF THE EFFECT OF RYANODINE ON CATECHOLAMINE SECRETION EVOKED BY CAFFEINE AND ACETYLCHOLINE IN PERFUSED ADRENAL GLANDS OF GUINEA-PIG" BR. J. PHARMACOL.105. 597-802 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATOH, E.: "ON THE MECHANISM OF OUABAIN-INDUCED RELEASE OF ACETYLCHOLINE FROM SYNAPTOSOMES" J. NEUROCHEM.58. 1038-1044 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] NAKAZATO, Y.: "INHIBITORY EFFECTS OF CAFFEINE ON AGONIST-INDUCED CATECHOLAMINE SECRETION FROM ADRENAL CHROMAFFIN CELLS" 7TH INTERNATIONAL CATECHOLAMINE SYMPOSIUM, ABSTRACTS. 228 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] TERAOKA, H.: "DIFFERENCE IN THE EFFECTIVENESS OF Ca^<2+> EVOKE CATECHOLAMINE SECRETION BETWEEN ADRENALINE- AND NORADRENALINE-CONTAINING CELLS OF BOVINE ADRENAL MEDULLA" J. NEUROCHEM.(1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Yoshikazu Nakazato;Hirotaka Hayashi;Hiroki Teraoka: "Comparisons of the effects of ryanodine on catecholamine secretion evoked by caffeine and acetylcholine in perfused adrenal glands of the guineaーpig" British Journal of Pharmacology. 105. 597-602 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Hiroki Teroka;Yoshikazu Nakazato;Akira Ohga: "Ryanodine inhibits caffeineーevoked Ca^<2+> mobilization and catecholamine secretion from cultured bovine adrenal chromaffin,cells" Journal of Neurochemistry. 57. 1884-1890 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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