※ をクリックすると外部の論文のサイトが開きます。
論文
- タイトル
- タイトル（英）
- GAD67-mediated GABA Synthesis and Signaling Impinges on Directing Basket Cell Axonal Projections Toward Purkinje Cells in the Cerebellum.
- 参照URL
- https://researchmap.jp/shinobu/published_papers/35664957
- 著者
- 著者（英）
- Hideki Miwa,Ken Kobayashi,Shinobu Hirai,Mitsuhiko Yamada,Masahiko Watanabe,Haruo Okado,Yuchio Yanagawa
- 担当区分
- 概要
- 概要（英）
- Gamma-aminobutyric acid (GABA) is a major inhibitory neurotransmitter in the central nervous system, synthesized by two isoforms of glutamate decarboxylase (GAD): GAD65 and GAD67. GABA may act as a trophic factor during brain development, but its contribution to the development and maturation of cerebellar neural circuits is not known. To understand the roles of GABA in cerebellar organization and associated functions in motor coordination and balance, we examined GAD65 conventional knock out (KO) mice and mice in which GAD67 was eliminated in parvalbumin-expressing neurons (PV-Cre; GAD67flox/flox mice). We found aberrant subcellular localization of the Shaker-type K channel Kv1.1 in basket cell collaterals of PV-Cre; GAD67 flox/flox mice and abnormal projections from basket cells to Purkinje cells in both mouse strains. We also found that altered synaptic properties of basket cell terminals to Purkinje cells in PV-Cre; GAD67flox/flox mice. Furthermore, PV-Cre; GAD67 flox/flox mice exhibited abnormal motor coordination in the rotarod test. These results indicate that GABA signaling in the cerebellum is critical for establishing appropriate connections between basket cells and Purkinje cells and is associated with motor coordination in mice.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- Cerebellum (London, England)
- 巻
- 号
- 開始ページ
- 終了ページ
- 出版年月
- 2021年10月21日
- 査読の有無
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- DOI URL
- https://doi.org/10.1007/s12311-021-01334-8
- 共同研究・競争的資金等の研究課題