Exosomal transfer of vasorin expressed in hepatocellular carcinoma cells promotes migration of human umbilical vein endothelial cells.

Exosomal transfer of vasorin expressed in hepatocellular carcinoma cells promotes migration of human umbilical vein endothelial cells.
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DOI:
10.7150/ijbs.11943
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发表时间:
2015
影响因子:
9.2
通讯作者:
Shao N
Shao N
中科院分区:
生物学2区
文献类型:
--
作者:
Huang A;Dong J;Li S;Wang C;Ding H;Li H;Su X;Ge X;Sun L;Bai C;Shen X;Fang T;Li J;Shao N

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血管素(Vasorin,VASR)是一种I型跨膜蛋白,在肿瘤的发生、发展和血管生成中起重要作用。在这篇论文中,我们发现VEGFR2可能是肿瘤细胞和内皮细胞之间通讯的关键介质。我们首次证实了HepG2衍生的VEGFR2可以通过受体介导的外泌体内吞作用转移到人脐静脉内皮细胞(HUVECs),至少部分通过HSPG。含有外泌体的HepG2衍生的VEGFR2促进受体HUVECs细胞的迁移。我们的研究结果确定了一种新的途径,通过这种途径,在肿瘤细胞中表达的功能性蛋白质通过外泌体影响内皮细胞的生物学命运。
Vasorin (VASN) is a type I transmembrane protein that plays important roles in tumor development and vasculogenesis. In this paper, we showed that VASN could be a key mediator of communication between tumor cells and endothelial cells. We confirmed for the first time that HepG2-derived VASN can be transferred to human umbilical vein endothelial cells (HUVECs) via receptor mediated endocytosis of exosomes, at least in part through HSPGs. The HepG2-derived VASN containing exosomes promote migration of recipient HUVECs cells. Our results identify a novel pathway by which a functional protein expressed in tumor cells affects the biological fate of endothelial cells via exosomes.
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