Suppression of the dual-specificity phosphatase MKP-1 enhances HIF-1 trans-activation and increases expression of EPO.
Suppression of the dual-specificity phosphatase MKP-1 enhances HIF-1 trans-activation and increases expression of EPO.
复制标题
抑制双特异性磷酸酶 MKP-1 可增强 HIF-1 反式激活并增加 EPO 表达。
DOI:
10.1016/j.bbrc.2003.10.186
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发表时间:
2003-12
期刊:
影响因子:
--
通讯作者:
樊代明
中科院分区:
文献类型:
--
作者:
刘长江;时永全;韩者艺;潘阳林;刘娜;韩霜;陈瑜;兰梅;乔泰东;樊代明
Hypoxia-inducible factor 1 (HIF-1) is a phosphorylated protein and its phosphorylation is involved in HIF-1α subunit stabilization as well as in the regulation of HIF-1 transcriptional activity. In a variety of cell lines, the phosphorylation of HIF-1α is dependent on ERK or p38, two members of the mitogen-activated protein kinase (MAPK) superfamily. In addition, active MAPK could be inactivated through dephosphorylation by mitogen-activated protein kinase phosphatase-1 (MKP-1). MKP-1 has been identified as a hypoxia responsive gene, but its role in the response of cells to hypoxia is poorly understood. Here we found that hypoxia induces MKP-1 expression in human hepatoma cells HepG2 in a time-dependent manner. Inhibition of MKP-1 expression using siRNA technique could enhance HIF-1α phosphorylation, accompanied by an increase in transcriptionally active HIF-1 as well as a rise in the levels of HIF-1-induced erythropoietin expression.
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影响因子:
56.9
作者:
Jaakkola, P;Mole, DR;Ratcliffe, PJ
通讯作者:
Ratcliffe, PJ
影响因子:
4.8
作者:
Moritz, W;Meier, F;Weber, M
通讯作者:
Weber, M
影响因子:
4.8
作者:
Laderoute, KR;Mendonca, HL;Stork, PJS
通讯作者:
Stork, PJS
DOI:
10.1016/s0006-291x(03)00301-2
发表时间:
2003-03-28
影响因子:
3.1
作者:
Stawowy, P;Goetze, S;Graf, K
通讯作者:
Graf, K
DOI:
--
发表时间:
2001-07
期刊:
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research
影响因子:
--
作者:
B. Jiang;Guoqiang Jiang;Jenny Z. Zheng;Zhimin Lu;T. Hunter;P. Vogt
通讯作者:
B. Jiang;Guoqiang Jiang;Jenny Z. Zheng;Zhimin Lu;T. Hunter;P. Vogt