α7 nicotinic ACh receptors as a ligand-gated source of Ca(2+) ions: the search for a Ca(2+) optimum.

α7 nicotinic ACh receptors as a ligand-gated source of Ca(2+) ions: the search for a Ca(2+) optimum.
复制标题

DOI:
10.1007/978-94-007-2888-2_27
复制
发表时间:
2012
影响因子:
--
通讯作者:
Uteshev, Victor V.
Uteshev, Victor V.
中科院分区:
医学4区
文献类型:
--
作者:
Uteshev, Victor V.

文献摘要

参考文献

被引文献

相似文献

胞质Ca2+离子的时空分布是神经元行为和存活的关键决定因素。不同来源的Ca2+离子,包括配体和电压门控Ca2+通道有助于细胞内Ca2+稳态。许多正常的生理和治疗性神经元功能依赖于Ca2+,然而,过量的细胞质Ca2+或Ca2+进入和清除之间缺乏适当的平衡可能会破坏细胞完整性并导致细胞死亡。因此,存在胞质Ca2+升高的最佳时空模式,因此,配体和电压门控Ca2+离子通道的最佳激活被认为有利于神经元的功能和存活。α - 7烟碱乙酰胆碱受体(nAChRs)对Ca2+离子具有高度渗透性,在多种神经元和非神经元细胞的神经递质释放、基因表达和神经保护调节中发挥重要作用。在这篇综述中,重点放在α7 nachr介导的电流和Ca2+内流,以及如何将这种Ca2+进入来源与NMDA受体在支持胞质Ca2+稳态、神经元功能和存活方面进行比较。
The spatiotemporal distribution of cytosolic Ca2+ ions is a key determinant of neuronal behavior and survival. Distinct sources of Ca2+ ions including ligand- and voltage-gated Ca2+ channels contribute to intracellular Ca2+ homeostasis. Many normal physiological and therapeutic neuronal functions are Ca2+-dependent, however an excess of cytosolic Ca2+ or a lack of the appropriate balance between Ca2+ entry and clearance may destroy cellular integrity and cause cellular death. Therefore, the existence of optimal spatiotemporal patterns of cytosolic Ca2+ elevations and thus, optimal activation of ligand- and voltage-gated Ca2+ ion channels are postulated to benefit neuronal function and survival. Alpha7 nicotinic acetylcholine receptors (nAChRs) are highly permeable to Ca2+ ions and play an important role in modulation of neurotransmitter release, gene expression and neuroprotection in a variety of neuronal and non-neuronal cells. In this review, the focus is placed on α7 nAChR-mediated currents and Ca2+ influx and how this source of Ca2+ entry compares to NMDA receptors in supporting cytosolic Ca2+ homeostasis, neuronal function and survival.
DOI: 10.1124/mol.109.056226
发表时间: 2009-08-01
影响因子: 3.6
作者:
Barron, Sean C.;McLaughlin, James T.;Rosenberg, Robert L.
通讯作者: Rosenberg, Robert L.
DOI: 10.1523/jneurosci.2444-07.2007
发表时间: 2007-09-26
影响因子: 5.3
作者:
Bitner, Robert S.;Bunnelle, William H.;Gopalakrishnan, Murali
通讯作者: Gopalakrishnan, Murali
DOI: 10.1111/j.1476-5381.2009.00426.x
发表时间: 2009-11-01
影响因子: 7.3
作者:
Briggs, Clark A.;Gronlien, Jens Halvard;Gopalakrishnan, Murali
通讯作者: Gopalakrishnan, Murali
DOI: 10.1016/j.bcp.2007.07.010
发表时间: 2007-10-15
影响因子: 5.8
作者:
Buccafusco, Jerry J.;Terry, Alvin V., Jr.;Gopalakrishnan, Murali
通讯作者: Gopalakrishnan, Murali
DOI: 10.1016/s0091-3057(96)00354-1
发表时间: 1997-05-01
影响因子: 3.6
作者:
Briggs, CA;Anderson, DJ;Arneric, SP
通讯作者: Arneric, SP