Distinct physiological roles of the Gq‐coupled metabotropic glutamate receptors co‐expressed in the same neuronal populations

Distinct physiological roles of the Gq‐coupled metabotropic glutamate receptors co‐expressed in the same neuronal populations
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在相同神经元群中共表达的 Gq 偶联代谢型谷氨酸受体的独特生理作用

DOI:
10.1002/jcp.10081
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发表时间:
2002
影响因子:
5.6
通讯作者:
M. Marino
M. Marino
中科院分区:
生物学2区
文献类型:
--
作者:
O. Valenti;P. Conn;M. Marino

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I组代谢型谷氨酸受体mGluR 1和mGluR 5表现出高度的序列同源性,并且通常在相同的神经元群体中共表达。这些受体偶联到广泛的效应器系统,并涉及不同的生理和病理生理功能。由于高度的序列同源性,以及这些受体在重组系统中相同偶联的发现,通常认为这两种I组mGluR亚型在相同神经元中共表达时将表现出冗余功能。随着亚型选择性药理学工具的出现,在同一神经元中区分mGluR 1和mGluR 5的功能已经成为可能。正在出现的情况是功能多样化,这意味着有区别的监管。有趣的是,I组mGluRs受多种多样的调节系统调节,这可以解释这些受体如何在存在于同一细胞中时介导不同的作用。J.细胞。191:125-137,2002。© 2002 Wiley利斯公司
The group I metabotropic glutamate receptors, mGluR1 and mGluR5, exhibit a high degree of sequence homology, and are often found co‐expressed in the same neuronal populations. These receptors couple to a broad array of effector systems, and are implicated in diverse physiological and pathophysiological functions. Due to the high degree of sequence homology, and the findings that these receptors couple identically in recombinant systems, it has been generally assumed that these two group I mGluR subtypes would exhibit redundant function when co‐expressed in the same neurons. With the advent of subtype‐selective pharmacological tools, it has become possible to tease apart the functions of mGluR1 and mGluR5 in the same neuron. The emerging picture is one of diverse function, which implies differential regulation. Interestingly, the group I mGluRs are modulated by a rich variety of regulatory systems, which may explain how these receptors can mediate divergent actions when present in the same cell. J. Cell. Physiol. 191: 125–137, 2002. © 2002 Wiley‐Liss, Inc.
大鼠脑 G 蛋白偶联谷氨酸受体的克隆、表达和基因结构
DOI: 10.1126/science.1656524
发表时间: 1991-05-31
期刊: SCIENCE
影响因子: 56.9
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