Hypoxia-inducible factor-1 and neuroglobin expression.

Hypoxia-inducible factor-1 and neuroglobin expression.
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DOI:
10.1016/j.neulet.2012.01.080
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发表时间:
2012-04-18
影响因子:
2.5
通讯作者:
Greenberg DA
Greenberg DA
中科院分区:
医学4区
文献类型:
--
作者:
Haines B;Demaria M;Mao X;Xie L;Campisi J;Jin K;Greenberg DA

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脑红蛋白(Ngb)是一种缺氧诱导蛋白,在中风、阿尔茨海默病和相关疾病的动物模型中具有细胞保护作用,但其诱导的分子机制尚不清楚。我们在培养的神经(HN 33)细胞中使用shRNA介导的敲减和慢病毒载体介导的HIF-1α亚基过表达来测试缺氧诱导因子-1(HIF-1)调节Ngb水平的假设。HIF-1α敲低降低和HIF-1α过表达增加Ngb水平,与HIF-1和Ngb诱导之间的联系一致。这些发现可能对理解神经细胞的缺氧反应库和设计神经系统疾病的治疗策略具有意义。
Neuroglobin (Ngb) is a hypoxia-inducible protein with cytoprotective effects in animal models of stroke, Alzheimer's disease, and related disorders, but the molecular mechanisms involved in its induction are unknown. We tested the hypothesis that hypoxia-inducible factor-1 (HIF-1) regulates Ngb levels, using shRNA-mediated knockdown and lentiviral vector-mediated overexpression of the HIF-1α subunit, in cultured neural (HN33) cells. HIF-1α knockdown decreased and HIF-1α overexpression increased Ngb levels, consistent with a connection between HIF-1 and Ngb induction. These findings may have implications for understanding the hypoxia-response repertoire of neural cells and devising therapeutic strategies for neurologic disorders.
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