Inducers of hypoxic response: marine sesquiterpene quinones activate HIF-1.

Inducers of hypoxic response: marine sesquiterpene quinones activate HIF-1.
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DOI:
10.1021/np400320r
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发表时间:
2013-06-28
影响因子:
5.1
通讯作者:
Nagle DG
Nagle DG
中科院分区:
生物学2区
文献类型:
--
作者:
Du L;Zhou YD;Nagle DG

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缺氧诱导因子-1(HIF-1)转录因子调节细胞氧稳态。激活HIF-1和下游HIF靶点的试剂代表了预防和/或治疗缺血性疾病的潜在药物先导物。在寻找小分子HIF-1激活剂的过程中,在基于细胞的报告基因测定中评估了1936份海洋无脊椎动物和藻类提取物样品(美国国家癌症研究所开放库)的HIF-1激活活性。通过生物测定指导的两种海绵提取物的分级分离,得到了四种新的倍半萜醌(2-5)、一种新的倍半萜酚(6)、已知的高尔基体破坏剂伊利马醌(1)和三种先前报道的伊利马醌类似物(7-9)。虽然在较高浓度下观察到抗增殖活性,但具有2-羟基-5-甲氧基-1,4-苯醌部分的倍半萜醌(1-3)活化HIF-1并增加T47 D细胞中HIF-1靶基因血管内皮生长因子(VEGF)的表达。
The hypoxia-inducible factor-1 (HIF-1) transcription factor regulates cellular oxygen homeostasis. Agents that activate HIF-1 and downstream HIF targets represent potential drug leads for the prevention and/or treatment of ischemic disorders. In a search for small-molecule HIF-1 activators, 1936 marine invertebrate and algal extract samples (U.S. National Cancer Institute’s Open Repository) were evaluated for HIF-1 activation activity in a cell-based reporter assay. Bioassay-guided fractionation of two active extracts of the sponge Dactylospongia elegans afforded four new sesquiterpene quinones (2–5), one new sesquiterpene phenol (6), the known Golgi disruptor ilimaquinone (1), and three previously reported ilimaquinone analogues (7–9). While antiproliferative activity was observed at higher concentrations, the sesquiterpene quinones (1–3) possessing a 2-hydroxy-5-methoxy-1,4-benzoquinone moiety activated HIF-1 and increased the expression of HIF-1 target gene vascular endothelial growth factor (VEGF) in T47D cells.
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