Unifying concepts in stimulus-secretion coupling in endocrine cells and some implications for therapeutics.

Unifying concepts in stimulus-secretion coupling in endocrine cells and some implications for therapeutics.
复制标题

统一内分泌细胞刺激-分泌耦合的概念以及对治疗的一些影响。

DOI:
10.1152/advan.90213.2008
复制
发表时间:
2009
影响因子:
2.1
通讯作者:
Misler,Stanley
Misler,Stanley
中科院分区:
教育学4区
文献类型:
--
作者:
Misler,Stanley

文献摘要

参考文献

被引文献

相似文献

内分泌细胞中的刺激-分泌耦合(SSC)作为普通生理学研究/教学的一个主题仍然没有得到足够的重视。在这篇文章中,我们综述了用于研究单细胞胞吐作用的关键的电生理、电化学和荧光光学技术,这些技术使这一领域成为最近研究的沃土。基于这些技术的发现,我们建立了肾上腺嗜铬细胞的SSC模型,该模型融合了依赖钙离子进入的SSC(神经元的特征)和G蛋白偶联的SSC,钙释放依赖的SSC和第二信使依赖的SSC(上皮外分泌细胞和有核血细胞的特征)。这个模型需要两个不同的分泌颗粒池,它们对钙离子的敏感性不同。我们扩展了这一模型,以解释各种外周和下丘脑/脑垂体型内分泌细胞中的SSC。这些细胞包括分泌抗利尿激素的渗透敏感型大细胞神经分泌细胞、分泌心钠素的牵张敏感型心房肌细胞、分泌醛固酮的K+敏感型肾上腺肾小球细胞、分泌甲状旁腺激素的钙敏感型甲状旁腺主细胞、分泌胰岛素和高血糖素的胰岛葡萄糖敏感型β和α细胞。我们总结了这种方法对病理生理学和治疗学的影响,包括主细胞钙敏感性缺陷,导致肾脏疾病的甲状旁腺功能亢进症,以及双相胰岛素分泌缺陷,导致糖尿病。
Stimulus-secretion coupling (SSC) in endocrine cells remains underappreciated as a subject for the study/teaching of general physiology. In the present article, we review key new electrophysiological, electrochemical, and fluorescence optical techniques for the study of exocytosis in single cells that have made this a fertile area for recent research. Based on findings using these techniques, we developed a model of SSC for adrenal chromaffin cells that blends features of Ca2+entry-dependent SSC (characteristic of neurons) with G protein receptor-coupled, Ca2+release-dependent, and second messenger-dependent SSC (characteristic of epithelial exocrine cells and nucleated blood cells). This model requires two distinct pools of secretory graunules with differing Ca2+sensitivities. We extended this model to account for SSC in a wide variety of peripheral and hypothalamic/pituitary-based endocrine cells. These include osmosensitive magnocellular neurosecretory cells releasing antidiuretic hormone, stretch-sensitive atrial myocytes secreting atrial natriuretic peptide, K+-sensitive adrenal glomerulosa cells secreting aldosterone, Ca2+-sensitive parathyroid chief cells secreting parathyroid hormone, and glucose-sensitive β- and α-cells of pancreatic islets secreting insulin and glucagon, respectively. We conclude this article with implications of this approach for pathophysiology and therapeutics, including defects in chief cell Ca2+sensitivity, resulting in the hyperparathyroidism of renal disease, and defects in biphasic insulin secretion, resulting in diabetes mellitus.
三十年的刺激-分泌耦合:从Ca(2) 到GTP 在胞吐作用的调节中。
DOI: --
发表时间: 2000
期刊: Biochimie
影响因子: 3.9
作者:
J. Pinxteren;Antony J. O'Sullivan;Karen Y. Larbi;P. Tatham;B. Gomperts
通讯作者: B. Gomperts
DOI: 10.2337/diabetes.51.2007.s74
发表时间: 2002-02-01
期刊: DIABETES
影响因子: 7.7
作者:
Barg, S;Eliasson, L;Rorsman, P
通讯作者: Rorsman, P
胰高血糖素样肽 1(7-36) 酰胺通过刺激分泌耦合中的近端和远端调节步骤刺激人胰腺 β 细胞的胞吐作用
DOI: 10.2337/diab.47.1.57
发表时间: 1998
期刊: Diabetes
影响因子: 7.7
作者:
J. Gromada;K. Bokvist;W. Ding;J. Holst;J. Nielsen;P. Rorsman
通讯作者: P. Rorsman
DOI: 10.1038/360270a0
发表时间: 1992-11-19
期刊: NATURE
影响因子: 64.8
作者:
OBERHAUSER, AF;MONCK, JR;FERNANDEZ, JM
通讯作者: FERNANDEZ, JM
DOI: 10.1038/367072a0
发表时间: 1994-01-06
期刊: NATURE
影响因子: 64.8
作者:
ARTALEJO, CR;ADAMS, ME;FOX, AP
通讯作者: FOX, AP