Cyclotripeptide X-13 is a core of novel marine compound xyloallenoide A isolated from mangrove fungus Xylaria sp. (no. 2508). We found that X-13 dose-dependently induced angiogenesis in zebrafish embryos and in human endothelial cells, which was accompanied by increased phosphorylation of eNOS and Akt and NO release. Inhibition of PI3K/Akt/eNOS by LY294002 or l-NAME suppressed X-13-induced angiogenesis. The present work demonstrates that X-13 promotes angiogenesis via PI3K/Akt/eNOS pathways.
环三肽 X-13 是一种从红树林真菌 Xylaria sp.(编号 2508)中分离出来的新型海洋化合物 xyloallenoide A 的核心成分。我们发现,X-13 可剂量依赖性地诱导斑马鱼胚胎和人类内皮细胞的血管生成,同时增加 eNOS 和 Akt 的
磷酸化以及 NO 的释放。用 LY294002 或 l-N
AME 抑制
PI3K/Akt/eNOS 可抑制 X-13 诱导的血管生成。本研究表明,X-13通过
PI3K/Akt/eNOS途径促进血管生成。