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Studies on retinal amacrine cells using slice-patch method

Research Project

Project/Area Number 06454715
Research Category

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

Allocation TypeSingle-year Grants
Research Field 神経・脳内生理学
Research InstitutionKeio University, School of Medicine

Principal Investigator

KANEKO Akimichi  Keio Univ., School of Med., Professor, 医学部, 教授 (00051491)

Co-Investigator(Kenkyū-buntansha) AOKI Kaori  Keio Univ., School of Med., Instructor, 医学部, 助手 (00276213)
KUWATA Osamu  Keio Univ., School of Med., Instructor, 医学部, 助手 (30255426)
MIWA Naofumi  Keio Univ., School of Med., Instructor, 医学部, 助手 (40255427)
WATANABE Shuichi  Keio Univ., School of Med., Assist.Prof., 医学部, 専任講師 (60138120)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 1995: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1994: ¥5,200,000 (Direct Cost: ¥5,200,000)
Keywordsretina / amacrine cell / slice preparation / GABA / patch clamp / goldfish / ナトリウム電流 / カリウム電流 / カルシウム電流
Research Abstract

The amacrine cells are an important group of secondary neurons which can exhibit a wide variety of light-evoked responses. The main excitatory inputs to the amacrine cells are believed to originate from the bipolar cells while the amacrine cell itself is thought to provide the main inhibitory inputs to the ganglion cells. The light-evoked responses of the amacrine cells in the goldfish retina have been classified into three main groups with some subdivisions within these three main groups. As determined by intercellular recordings, amacrine cells of the goldfish retina can respond to a light stimulus by yielding a transient, a sustained depolarizing, or a sustained hyperpolarizing response. The mechanisms by which these variety of light-evoked responses is generated is still not completely understood. To elucidate some of the factors which might affect the differing responses of amacrine cells, we undertook the whole-cell patch clamp study of the amacrine cells of the goldfish retina in a slice preparation. Three main morphological subtypes of amacrine cells were observed. Four types of voltage-gated currents were identified in the amacrine cell : a sustained outward potassium current, I_K, a transient outward potassium current, I_A, a sustained inward calcium current, I_<Ca>, and a transient inward sodium current, I_<Na>. In addition, spontaneous current events, carried by chloride ions through GABA_A receptors, were recorded in most of the amacrine cells.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] Shen,J.,Watanabe,S,-I.& Kaneko,A.: "Cell dissociation with papain reduced the density of cGMP-activated channels of the retinal rod." Jpn.J.Physiol.45. 151-164 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] De la Villa,P.,Kurahashi,T.& Kaneko,A.: "L-Glutamate-induced responses and cGMP-activated channels in three subtypes of retinal bipolar cells dissociated from the cat." J.Neurosci.15. 3571-3582 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takahashi,K.-I.,Miyoshi,S.& Kaneko,A.: "GABA-induced chloride current in catfish horizontal cells mediated by non-GABA_A receptor channels." Jpn.J.Physiol.45. 437-456 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takahashi,K.-I.,Miyoshi,S.,Kaneko,A.& Copenhagen,D.R.: "Actions of nipecotic acid and SKF89976A on GABA transporter in cone-driven horizontal cells dissociated from the catfish retina." Jpn.J.Physiol.45. 457-473 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kaneda,M.,Hashimoto,M.& Kaneko,A.: "Neuronal nicotinic acetylcholine receptors of ganglion cells in the cat retina." Jpn.J.Physiol.45. 491-508 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Sasaki,T.& Kaneko,A.: "L-glutamated-induced responses in OFF-type bipolar cells of the cat retina." Vision Res.36. 787-795 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Aoki K,Osumi-Yamashita N,Ninomiya Y,& Eto K.: "Differential expression of N-CAM,vimentin and MAPIB during initial pathfinding of olfactory receptor neurons in the mouse embryo." Anat.Embryol.192. 211-220 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 伊藤嘉邦、倉橋隆、金子章道: "薬物刺激用圧力制御装置" 日本生理学雑誌. 57. 127-134 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 金子章道: "視覚系のしくみと働き 網膜" Clin.Neurosci.13. 22:1144-24:1146 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shen, J., Watanabe, S.& Kaneko, A.: "Cell dissociation with papain reduced the density of cGMP-activated channels of the retinal rod." Jpn.J.Physiol.45. 151-164 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] De la Villa, P., Kurahashi, T.& Kaneko, A.: "L-Glutamate-induced responses and cGMP-activated channels in three subtypes of retinal bipolar cells dissociated from the cat." J.Neurosci.15. 3571-3582 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takahashi, K.-I., Miyoshi, S.& Kaneko, A.: "GABA-induced chloride current in catfish horizontal cells mediated by non-GABA_A receptor channels." Jpn.J.Physiol.45. 437-456 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takahashi, K.-I., Miyoshi, S., Kaneko, A.& Copenhagen, D.R.: "Actions of nipecotic acid and SKF89976A on GABA transporter in cone-driven horizontal cells dissociated from the catfish retina." Jpn.J.Physiol.45. 457-473 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kaneda, M., Hashimoto, M.& Kaneko, A.: "Neuronal nicotinic acetylcholine receptors of ganglion cells in the cat retina." Jpn.J.Physiol.45. 491-508 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Sasaki, T.& Kaneko, A.: "L-glutamate-induced responses in OFF-type bipolar cells of the cat retina." Vision Res.36. 787-795 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shen, J., Watanabe,S. -I. & kaneko, A.: "Cell dissociation with papain reduced the density of cGMP-activated channels of the retinal rod." Jpn. J. Physiol.45. 151-164 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] De la Villa, P., Kurahashi, T. & Kaneko, A.: "L-Glutamate-induced responses and cGMP-activated channels in three subtypes of retinal bipolar cells dissociated from the cat." J. Neurosci.15. 3571-3582 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Takahashi, K. -I., Miyoshi, S. & Kaneko, A.: "GABA-induced chloride current in catfish horizontal cells mediated by non-GABA_A receptor channels." Jpn. J. Physiol.45. 437-456 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Takahashi, K. -I., Miyoshi, S., Kaneko, A. & Copenhagen, D. R.: "Actions of nipecotic acid and SKF89976A on GABA transporter in cone-driven horizontal cells dissociated from the carfish retina." Jpn. J. Physiol.45. 457-473 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kaneda, M., Hashimoto, M. & kaneko, A.: "Neuronal nicotinic acetylcholine receptors of ganglion cells in the cat retina." Jpn. J. Physiol.45. 491-508 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Sasaki, T. & Kaneko, A.: "L-glutamate-induced responses in OFF-type bipolar cells of the cat retina." Vision Res.(in press).

    • Related Report
      1995 Annual Research Report
  • [Publications] Aoki K, Osumi-Yamashita N, Ninomiya Y, & Eto K.: "Differential expression of N-CAM, vimentin and MAPIB during initial pathfinding of olfactory receptor neurons in the mouse embryo." Anat. Embryol.192. 211-220 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 伊藤嘉邦、倉橋隆、金子章道: "薬物刺激用圧力制御装置" 日本生理学雑誌. 57. 127-134 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 金子章道: "視覚系のしくみと働き 網膜" Clin. Neurosci.13. 22:1144-24:1146 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kaneko,A.,de la Villa,P.,Kurahashi,T.& Sasaki,T.: "Role of L-glutamate for formation of ON-and OFF-responses in the retina." Biomed.Res.15(Suppl.1). 41-45 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Takahashi,K.,Miyoshi,S.& Kaneko,A.: "Two components of GABA-induced currents in catfish retinal horizontal cells." Jpn.J.Physiol.44(Suppl.2). S141-144 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] de la Villa,P.,Kurahashi,T.& Kaneko,A.: "L-Glutamate-induced responses and cGMP-activated channels in three subtypes of retina bipolar cells dissociated from the cat." J.Neurosci.印刷中

    • Related Report
      1994 Annual Research Report
  • [Publications] Shen,J.,Watanabe,S.& Kaneko,A.: "Cell dissociation with papain reduces the density of cGMP-activated channels of the retinal rod." Jpn.J.Physiol.45. 印刷中

    • Related Report
      1994 Annual Research Report
  • [Publications] 倉橋 隆、金子 章道: "光フラッシュによる嗅細胞情報変換システムの活性化と解析" 日本味と匂学会誌. 1. S241-S244 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 伊藤 嘉邦、倉橋 隆、金子 章道: "匂い刺激用圧力制御装置の開発" 日本味と匂学会誌. 1. S245-S248 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 松田 十四、羽柴 基之、馬場 駿吉、倉橋 隆、金子 章道: "イモリ単離嗅細胞における嗅覚感度の測定" 日本味と匂学会誌. 1. S249-S252 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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