Rapid, nongenomic estrogen actions protect pancreatic islet survival.
Rapid, nongenomic estrogen actions protect pancreatic islet survival.
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DOI:
10.4161/isl.1.3.9781
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发表时间:
2009-11
期刊:
影响因子:
2.2
通讯作者:
Mauvais-Jarvis F
中科院分区:
文献类型:
--
作者:
Liu S;Mauvais-Jarvis F
The gonadal steroid, 17β-estradiol (E2), acts as a protective hormone preventing β-cell apoptosis in vivo in mice of both sexes and in cultured mouse and human islets. E2 signals via the classical estrogen receptor (ER)α and ERβ, an extranuclear form of ERα and the G protein-coupled estrogen receptor (GPER). In a recent study, we determined the contribution of these receptors to β-cell survival, using a combination of genetic and pharmacological tools in mice and cultured mouse and human islets. We showed that E2 favors islet survival by preventing apoptosis via ERα and ERβ through ERE-independent, extra-nuclear mechanisms and with a predominant ERα effect. We also revealed that E2 prevents apoptosis via GPER-dependent mechanisms. Here, we show that E2 prevents apoptosis independently of gene transcription or de novo protein synthesis suggesting that E2 cytoprotection happens independently of nuclear events. Furthermore, we report that E2 islet cytoprotection can be mimicked by the nonfeminizing E2 stereoisomer, 17α-estradiol, suggesting that it is partially non-estrogen receptor mediated. These studies identify novel estrogen pathways and targets to protect islet survival.
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DOI:
10.1196/annals.1347.008
发表时间:
2005-01-01
期刊:
FUTURE OF HORMONE THERAPY: WHAT BASIC SCIENCE AND CLINICAL STUDIES TEACH US
影响因子:
--
作者:
Dykens, JA;Moos, WH;Howell, N
通讯作者:
Howell, N
影响因子:
4.8
作者:
Martensson, Ulrika E. A.;Salehi, S. Albert;Leeb-Lundberg, L. M. Fredrik
通讯作者:
Leeb-Lundberg, L. M. Fredrik
DOI:
10.1073/pnas.0602956103
发表时间:
2006-06-13
影响因子:
11.1
作者:
Le May, Cedric;Chu, Khoi;Mauvais-Jarvis, Franck
通讯作者:
Mauvais-Jarvis, Franck
影响因子:
4.8
作者:
Nadal, A;Rovira, JM;Soria, B
通讯作者:
Soria, B
DOI:
10.1196/annals.1347.009
发表时间:
2005-01-01
期刊:
FUTURE OF HORMONE THERAPY: WHAT BASIC SCIENCE AND CLINICAL STUDIES TEACH US
影响因子:
--
作者:
Toran-Allerand, CD
通讯作者:
Toran-Allerand, CD