Cyclic AMP is both a pro-apoptotic and anti-apoptotic second messenger.
Cyclic AMP is both a pro-apoptotic and anti-apoptotic second messenger.
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DOI:
10.1111/j.1748-1716.2011.02273.x
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发表时间:
2012-02
期刊:
影响因子:
--
通讯作者:
Zambon AC
中科院分区:
文献类型:
--
作者:
Insel PA;Zhang L;Murray F;Yokouchi H;Zambon AC
The second messenger cyclic AMP (cAMP) can either stimulate or inhibit programmed cell death (apoptosis). Here, we review examples of cell types that show pro-apoptotic or anti-apoptotic responses to increases in cAMP. We also show that cells can have both such responses, although predominantly having one or the other. Protein kinase A (PKA)-promoted changes in phosphoylation and gene expression can mediate pro-apoptotic responses, such as in murine S49 lymphoma cells, based on evidence that mutants lacking PKA fail to undergo cAMP-promoted, mitochondria-dependent apoptosis. Mechanisms for the anti-apoptotic response to cAMP likely involve Epac (Exchange protein activated by cAMP), a cAMP-regulated effector that is a guanine nucleotide exchange factor (GEF) for the low molecular weight G-protein, Rap1. Therapeutic approaches that activate PKA-mediated pro-apoptosis or that block Epac-mediated anti-apoptotisis may provide a means to enhance cell killing, such as in certain cancers. By contrast, efforts to block PKA or stimulate Epac have the potential to be useful in diseases settings (such as heart failure) associated with cAMP-promoted apoptosis.
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影响因子:
8
作者:
Carie, A. E.;Sebti, S. M.
通讯作者:
Sebti, S. M.
DOI:
10.1523/jneurosci.3994-09.2010
发表时间:
2010-04-21
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
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通讯作者:
Gutmann DH
影响因子:
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作者:
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通讯作者:
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5.6
作者:
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通讯作者:
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影响因子:
7.7
作者:
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通讯作者:
Strack, Stefan