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Roles for Gq/11-mediated Sigmals in the Muscarinic Regulation of Ciliary Muscle Contraction

机译:Gq / 11介导的Sigmals在睫状肌收缩的毒蕈碱调节中的作用。

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Experiments were carried out to examine effects of YM-254890,an inhibitor of Gαsubunit of Gq/11 protein (Gαq/11) on contraction,M3-muscarinic receptor (M3R)-operated non-selective cation channel (NSCC) currents and elevation of intracellular Ca2+ concentration ([Ca2+]1) induced by carbachol (CCh) in bovine ciliary muscle.We also conducted immunofluorescence microscopy using antibodies specific to M3R,Gαq/11 and members of the canonical transient-receptor-potential (TRPC) family which is attracting wide attention as promising molecularcandidates for receptor-operated NSCCs.We obtained thereby results which strongly indicate involvement of Gq/11-mediated signals in the initial phasic component and the ensuing tonic component of the contraction induced by muscarinic stimulation.
机译:进行了实验以检验YM-254890(一种Gq / 11蛋白的Gα亚基的抑制剂(Gαq/ 11))对收缩,M3-毒蕈碱受体(M3R)-操纵的非选择性阳离子通道(NSCC)电流和脂质升高的影响。牛睫状肌中卡巴胆碱(CCh)诱导的细胞内Ca2 +浓度([Ca2 +] 1)。我们还使用了针对M3R,Gαq/ 11的特异性抗体和经典瞬时受体电位(TRPC)家族成员进行了免疫荧光显微镜检查作为受体操纵的NSCC的有希望的分子候选物引起了广泛关注。我们由此获得的结果强烈表明Gq / 11介导的信号参与了毒蕈碱刺激诱导的收缩的初始阶段性成分和随之而来的强直性成分。

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