1989 Fiscal Year Annual Research Report

単一細胞における電気活動と形態解析の同時処理システムの開発

Research Project

Project/Area Number	63870100
Research Institution	The University of Tokyo
Principal Investigator	杉本恒明東京大学, 医学部(病), 教授 (60019883)
Co-Investigator(Kenkyū-buntansha)	倉智嘉久東京大学, 医学部(病), 助手 (30142011) 飯野正光東京大学, 医学部, 助手 (50133939) 丸山芳夫自治医科大学, 医学部, 助教授 (00133942) 田中博浜松医科大学, 医療情報部, 助教授 (60155158) 豊岡照彦東京大学, 保健センター, 講師 (00146151)
Keywords	細胞内カルシウム測定装置 / パッチクランプ法 / 単一組織細胞 / 興奮ー機能連関
Research Abstract	1.平滑筋細胞における細胞内Ca^<2+>の測定報告者はラット大動脈血管培養平滑筋細胞において細胞内Ca^<2+>調節機構を検討し、K^+、カフェイン、アンギオテンシンIIの各々による細胞内Ca^<2+>の増加機構が細胞分化の段階により異なることを見出した。また細胞内Ca^<2+>とパッチクランプ法による膜電流の同時測定にも成功した。 2.膵腺細胞アセチルコリンによる細胞内Ca^<2+>上昇に伴うK^+電流の出現を指標にアセチルコリン作用の発現・脱感作について報告した。また、アラキドン酸による細胞内Ca^<2+>の遊離の調節機構について検討している。この主題に関し、細胞内Ca^<2+>と膜電流の同時測定を試みている。 3.心筋細胞アラキドン酸代謝物質による心筋細胞ムスカリン性K^+チャンネルの活性化の生理的意義について検討し、α受容体作用に関与していることを明らかにした。また細胞内環境を維持した状態でパッチクランプ法による細胞電気活動の測定を可能とするため、イオノフォア、ナイスタチンによる膜電位固定法を確立し、報告した。この方法を用いて、種々のアゴニストや薬剤の膜電流系に対する効果を検討し、その有用性を確認した。この方法は細胞内環境を長く生理的な条件に保持し、細胞の収縮も持続する。従って、形態変化と膜電流系の同時解析に適切な方法と考えられた。

Research Products
(21 results)

All Other

All Publications (21 results)

[Publications] Iino,Masamitsu: "Calcium-iuduced calcium release mechanism in guinea pig taenia caeci" J Gen Physiol. 94. 363-383 (1989)
[Publications] Maruyama,Yoshio: "Control of exocytosis in single cells" News in Physiological Sciences. 4. 53-56 (1989)
[Publications] Maruyama,Yoshio: "Activation and desensitization mechanisms of muscarinic current response in single pancreatic acinar cells of rats" J Physiol(Lond). 417. 343-359 (1989)
[Publications] Petersen,OH: "Electrophysiology of salivary and pancreatic acinar cells" Handbook of physiology,sec 6;The gastrointestinal system(Vol III)edby Forte JG American physiological Society,Oxford Univ Press,New York. p.25-p.50 (1989)
[Publications] Kurachi,Yoshihisa: "α-Adrenergic activation of the muscarinic K^+ channel is mediated by arachidonic acid metabolites" Pflugers Arch,Eur J Physiol. 414. 102-104 (1989)
[Publications] Kurachi,Yoshihisa: "Regulation of G protein-gated K^+ channels" News in Physiological Sciences. 4. 158-161 (1989)
[Publications] Kurachi,Yoshihisa: "Cardiac Ca current does not run down and is very sensitive to isoprenaline in the nystatin-method of whole cell recording" Naunyn-Schmiedeberg's Arch Pharmacol. 340. 158-161 (1989)
[Publications] Shimizu,Takao: "Biosynthesis and function of leukotriene C_4" Advances in Prostagl Thrombox and Leukotri Res. 20. (1990)
[Publications] Kurachi,Yoshihisa: "Positive cooperativity in activation of the cardiac muscarinic K^+ channel by intracellular GTP" Pflugers Arch,Eur J Physiol. (1990)
[Publications] Joshi,Chaya: "A comparison of the roles of purified G-protein subunits in the activation of the cardiac muscarinic K^+ channel" J Gen Physiol. (1990)
[Publications] Hisada,Tetsuya: "properties of membrane currents in isolated amooth muscle cells from guinea-pig trachea" Pflugers Arch,Eur J Physiol. (1990)
[Publications] Kurachi,Yoshihisa: "AN-132,a new class I anti-arrhythmic agent,depresses the acetylcholine-induced K^+ current in atrial myocytes" Eur J Pharmacol. 165. 319-322 (1989)
[Publications] Kurachi,Yoshihisa: "Voltage-dependent inhibition of the delayed outward potassium current by OPC-8490,a novel positive inotropic agent,in isolated atrial myocytes of guinea-pig heart" Naunyn-Schmiedeberg's Arch Pharmacol. (1990)
[Publications] Kurachi,Yoshihisa: "On the molecular regulation of muscarinic K^+ channels by GTP-binding proteins in cardiac atrial cell membrane" Segawa T,Endo M,Ui M ed“Physiology and pharmacolgy of transmembrane signalling"Elsevier Science Pub.p.31-P.42 (1989)
[Publications] Kurachi,Yoshihisa: "On the physiological and pathophysiological molecular regulation of cardiac K^+ channel by GTP-binding protein" Fujiwara M,Narumiya S,Miwa S ed“Biosignalling in cardiac and vascular systems"Pergamon Press. p.273-p.279 (1989)
[Publications] Toyo-oka,Teruhiko: "In vivo ^<31>P-NMR spectroscopy of heart and identification of biochemical factors responsible for contractility loss" Paul JR,Elzinga G,Yamada K ed.“Muscle Energetics in Clinical and Biological Research". 315. 567-579 (1989)
[Publications] Shin,Woo-Soo: "Response of intracellular Ca^<2+> transients in cultured vascular smooth muscle cells to angiotensin II,vasopressin,acetylcholine and atrionatriuretic peptide" Jpn Heart J. 30. 77-83 (1989)
[Publications] Toyo-oka,Teruhiko: "Additive deleterious effect of micromolar Ca ions and free radicals on respiratory functioeart mitochondria at cytochrome C and its salvage traials" Biochem Biophys Res Commu. 163. 1397-1403 (1989)
[Publications] Arisawa,H: "In vivo ^<31>P-NMR spectroscopy at epicardium under hypoxia" Jpn Circ J. 53. 1098-1099 (1989)
[Publications] Toyo-oka,Teruhiko: "A critical review of NMR imaging and spectroscopy for the evaluation of cardiac hypertrophy in humans and experimental animals" J Mol Cell Cardiol. 21. 141-147 (1989)
[Publications] Takayasu,T: "Dissociation between ATP consumption and tension development" J Mol Cell Cardiol. (1990)

1989 Fiscal Year Annual Research Report

単一細胞における電気活動と形態解析の同時処理システムの開発

Principal Investigator

杉本 恒明 東京大学, 医学部(病), 教授 (60019883)

Research Products

[Publications] Iino,Masamitsu: "Calcium-iuduced calcium release mechanism in guinea pig taenia caeci" J Gen Physiol. 94. 363-383 (1989)

[Publications] Maruyama,Yoshio: "Control of exocytosis in single cells" News in Physiological Sciences. 4. 53-56 (1989)

[Publications] Maruyama,Yoshio: "Activation and desensitization mechanisms of muscarinic current response in single pancreatic acinar cells of rats" J Physiol(Lond). 417. 343-359 (1989)

[Publications] Petersen,OH: "Electrophysiology of salivary and pancreatic acinar cells" Handbook of physiology,sec 6;The gastrointestinal system(Vol III)edby Forte JG American physiological Society,Oxford Univ Press,New York. p.25-p.50 (1989)

[Publications] Kurachi,Yoshihisa: "α-Adrenergic activation of the muscarinic K^+ channel is mediated by arachidonic acid metabolites" Pflugers Arch,Eur J Physiol. 414. 102-104 (1989)

[Publications] Kurachi,Yoshihisa: "Regulation of G protein-gated K^+ channels" News in Physiological Sciences. 4. 158-161 (1989)

[Publications] Kurachi,Yoshihisa: "Cardiac Ca current does not run down and is very sensitive to isoprenaline in the nystatin-method of whole cell recording" Naunyn-Schmiedeberg's Arch Pharmacol. 340. 158-161 (1989)

[Publications] Shimizu,Takao: "Biosynthesis and function of leukotriene C_4" Advances in Prostagl Thrombox and Leukotri Res. 20. (1990)

[Publications] Kurachi,Yoshihisa: "Positive cooperativity in activation of the cardiac muscarinic K^+ channel by intracellular GTP" Pflugers Arch,Eur J Physiol. (1990)

[Publications] Joshi,Chaya: "A comparison of the roles of purified G-protein subunits in the activation of the cardiac muscarinic K^+ channel" J Gen Physiol. (1990)

[Publications] Hisada,Tetsuya: "properties of membrane currents in isolated amooth muscle cells from guinea-pig trachea" Pflugers Arch,Eur J Physiol. (1990)

[Publications] Kurachi,Yoshihisa: "AN-132,a new class I anti-arrhythmic agent,depresses the acetylcholine-induced K^+ current in atrial myocytes" Eur J Pharmacol. 165. 319-322 (1989)

[Publications] Kurachi,Yoshihisa: "Voltage-dependent inhibition of the delayed outward potassium current by OPC-8490,a novel positive inotropic agent,in isolated atrial myocytes of guinea-pig heart" Naunyn-Schmiedeberg's Arch Pharmacol. (1990)

[Publications] Kurachi,Yoshihisa: "On the molecular regulation of muscarinic K^+ channels by GTP-binding proteins in cardiac atrial cell membrane" Segawa T,Endo M,Ui M ed“Physiology and pharmacolgy of transmembrane signalling"Elsevier Science Pub.p.31-P.42 (1989)

[Publications] Kurachi,Yoshihisa: "On the physiological and pathophysiological molecular regulation of cardiac K^+ channel by GTP-binding protein" Fujiwara M,Narumiya S,Miwa S ed“Biosignalling in cardiac and vascular systems"Pergamon Press. p.273-p.279 (1989)

[Publications] Toyo-oka,Teruhiko: "In vivo ^<31>P-NMR spectroscopy of heart and identification of biochemical factors responsible for contractility loss" Paul JR,Elzinga G,Yamada K ed.“Muscle Energetics in Clinical and Biological Research". 315. 567-579 (1989)

[Publications] Shin,Woo-Soo: "Response of intracellular Ca^<2+> transients in cultured vascular smooth muscle cells to angiotensin II,vasopressin,acetylcholine and atrionatriuretic peptide" Jpn Heart J. 30. 77-83 (1989)

[Publications] Toyo-oka,Teruhiko: "Additive deleterious effect of micromolar Ca ions and free radicals on respiratory functioeart mitochondria at cytochrome C and its salvage traials" Biochem Biophys Res Commu. 163. 1397-1403 (1989)

[Publications] Arisawa,H: "In vivo ^<31>P-NMR spectroscopy at epicardium under hypoxia" Jpn Circ J. 53. 1098-1099 (1989)

[Publications] Toyo-oka,Teruhiko: "A critical review of NMR imaging and spectroscopy for the evaluation of cardiac hypertrophy in humans and experimental animals" J Mol Cell Cardiol. 21. 141-147 (1989)

[Publications] Takayasu,T: "Dissociation between ATP consumption and tension development" J Mol Cell Cardiol. (1990)

杉本恒明東京大学, 医学部(病), 教授 (60019883)