Phenolic compounds as antiangiogenic CMG2 inhibitors from Costa Rican endophytic fungi.

Phenolic compounds as antiangiogenic CMG2 inhibitors from Costa Rican endophytic fungi.
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DOI:
10.1016/j.bmcl.2012.07.075
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发表时间:
2012-09-15
影响因子:
2.7
通讯作者:
Clardy, Jon
Clardy, Jon
中科院分区:
医学4区
文献类型:
--
作者:
Cao, Shugeng;Cryan, Lorna;Habeshian, Kaiane A.;Murillo, Catalina;Tamayo-Castillo, Giselle;Rogers, Michael S.;Clardy, Jon

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靶向和抑制CMG2(毛细血管形态发生基因蛋白2)代表了由于CMG2在血管生长(血管生成)中的作用而用于癌症和视网膜疾病的治疗剂的新策略。开发了一种高通量FRET(Förster共振能量转移)测定法,用于鉴定CMG 2抑制剂作为抗血管生成剂。生物测定引导的分离导致从CR252M分离和鉴定两个新化合物(1和2),一种从哥斯达黎加热带雨林收集的内生真菌Coccommonproteae,和一种从CR1207B(Aurapex penicillata)分离和鉴定的已知化合物(3)。二级体外试验表明具有抗血管生成活性。化合物3在52 μM时抑制内皮细胞迁移,但在156 μM时未显示任何内皮细胞抗增殖作用。化合物A(1)和化合物B(2)的结构经核磁共振(1D和2D NMR)分析确证。
Targeting and inhibiting CMG2 (Capillary Morphogenesis Gene protein 2) represents a new strategy for therapeutic agents for cancer and retinal diseases due to CMG2’s role in blood vessel growth (angiogenesis). A high throughput FRET (Förster Resonance Energy Transfer) assay was developed for the identification of CMG2 inhibitors as anti-angiogenetic agents. Bioassay-guided separation led to the isolation and identification of two new compounds (1 and 2) from CR252M, an endophytic fungus Coccomyces proteae collected from a Costa Rican rainforest, and one known compound (3) from CR1207B (Aurapex penicillata). Secondary in vitro assays indicated anti-angiogenic activity. Compound 3 inhibited the endothelial cell migration at 52 µM, but did not show any endothelial cell antiproliferative effect at 156 µM. The structure of the two new compounds, A (1) and B (2), were elucidated on the basis of extensive spectroscopic analysis, including 1D and 2D NMR experiments.
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