Negative Inotropic Effect of Carbachol and Interaction between Acetylcholine Receptor-Operated Potassium Channel (K.ACh Channel) and GTP Binding Protein in Mouse Isolated Atrium ― A Novel Methodological Trial
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- OKADA Muneyoshi
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 bancho 35-1, Towada city, Aomori 034-8628, Japan
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- NOMA Chihiro
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 bancho 35-1, Towada city, Aomori 034-8628, Japan
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- YAMAWAKI Hideyuki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 bancho 35-1, Towada city, Aomori 034-8628, Japan
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- HARA Yukio
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 bancho 35-1, Towada city, Aomori 034-8628, Japan
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抄録
Interaction between acetylcholine receptor-operated potassium channel (K.ACh channel) and GTP binding protein was examined by an immunoprecipitation-Western blotting system in mouse isolated atrium. The carbachol-induced negative inotropic action in indomethacin-pretreated mouse atrium was significantly inhibited by a K.ACh channel blocker, tertiapin or atropine. Kir3.1 K.ACh channel (Kir3.1) was immunoprecipitated with a mouse anti-Kir3.1 antibody. Coprecipitating Gβ with Kir3.1, detected by Western blotting, was significantly augmented by carbachol. Atropine, but not tertiapin, significantly inhibited the carbachol-induced coprecipitating Gβ with Kir3.1. The data indicate that immunoprecipitation with Kir3.1 and Western blotting of Gβ system is a useful method for assessing interaction between K.ACh channel and GTP binding protein in mouse atrium.
収録刊行物
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- The Journal of Veterinary Medical Science
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The Journal of Veterinary Medical Science 75 (3), 377-380, 2013
公益社団法人 日本獣医学会
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詳細情報 詳細情報について
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- CRID
- 1390001206428877568
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- NII論文ID
- 130001879648
- 40019635992
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- NII書誌ID
- AA10796138
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- COI
- 1:STN:280:DC%2BC3s%2FntlygsA%3D%3D
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- ISSN
- 13477439
- 09167250
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- NDL書誌ID
- 024431271
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- PubMed
- 23090691
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可