Downregulation of Bcl-2 expression by miR-34a mediates palmitate-induced Min6 cells apoptosis.
Downregulation of Bcl-2 expression by miR-34a mediates palmitate-induced Min6 cells apoptosis.
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miR-34a 下调 Bcl-2 表达介导棕榈酸酯诱导的 Min6 细胞凋亡
DOI:
10.1155/2014/258695
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发表时间:
2014
影响因子:
4.3
通讯作者:
Li Y
中科院分区:
文献类型:
--
作者:
Lin X;Guan H;Huang Z;Liu J;Li H;Wei G;Cao X;Li Y
Recent studies have demonstrated that the expression of miR-34a is significantly upregulated and associated with cell apoptosis in pancreatic β-cell treated with palmitate. Nevertheless, the underlying detailed mechanism is largely unknown. Here, we showed that miR-34a was significantly induced in Min6 pancreatic β-cell upon palmitate treatment. Elevated miR-34a promoted Min6 cell apoptosis. Intriguingly, ectopic expression of miR-34a lowered the expression of Bcl-2, an antiapoptotic protein. Luciferase reporter assay indicated the direct interaction of miR-34a with the Bcl-2 3′-UTR. Moreover, downregulated expression of Bcl-2 induced by palmitate could be restored by inhibition of miR-34a. We conclude that direct suppression of Bcl-2 by miR-34a accounts for palmitate-induced increased apoptosis rate in pancreatic β-cell.
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DOI:
10.1073/pnas.0801613105
发表时间:
2008-09-09
影响因子:
11.1
作者:
Yamakuchi, Munekazu;Ferlito, Marcella;Lowenstein, Charles J.
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DOI:
10.4137/cmed.s7314
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2013-09-01
期刊:
Clinical medicine insights. Endocrinology and diabetes
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7.7
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Regazzi R
影响因子:
4.2
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7.7
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通讯作者:
Regazzi R