Ephrin-B2/Fc promotes proliferation and migration, and suppresses apoptosis in human umbilical vein endothelial cells.

Ephrin-B2/Fc promotes proliferation and migration, and suppresses apoptosis in human umbilical vein endothelial cells.
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Ephrin-B2/Fc促进人脐静脉内皮细胞增殖和迁移并抑制细胞凋亡

DOI:
10.18632/oncotarget.17298
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发表时间:
2017-06-20
期刊:
影响因子:
--
通讯作者:
Shi SL
Shi SL
中科院分区:
其他
文献类型:
--
作者:
Zheng LC;Wang XQ;Lu K;Deng XL;Zhang CW;Luo H;Xu XD;Chen XM;Yan L;Wang YQ;Shi SL

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肿瘤的生长和转移依赖于血管生成。血管生成性生长涉及内皮细胞增殖、迁移和侵袭。Ephrin-B2是Eph受体酪氨酸激酶的配体,是血管内皮生长因子介导的血管生成中的重要介质。然而,关于肝配蛋白-B2对血管内皮细胞的影响的研究提供了有争议的信息。蛋白质组学研究表明,ephrin-B2/Fc可显著激活与细胞增殖、存活和迁移相关的多种信号通路,并抑制细胞凋亡和死亡。细胞学实验进一步证实ephrin-B2/Fc刺激内皮细胞增殖,触发剂量依赖性迁移,并抑制细胞凋亡。结果表明,可溶性ephrinB 2可促进人脐静脉内皮细胞的增殖和迁移,并抑制其凋亡。这些结果还表明ephrinB 2可预防缺血性疾病,并可能成为治疗血管生成相关疾病和肿瘤的新治疗靶点。
Tumor growth and metastasis are angiogenesis dependent. Angiogenic growth involves endothelial cell proliferation, migration, and invasion. Ephrin-B2 is a ligand for Eph receptor tyrosine kinases and is an important mediator in vascular endothelial growth factor-mediated angiogenesis. However, research offer controversial information regarding effects of ephrin-B2 on vascular endothelial cells. In this paper, proteome analyses showed that ephrin-B2/Fc significantly activates multiple signaling pathways related to cell proliferation, survival, and migration and suppresses apoptosis and cell death. Cytological experiments further confirm that ephrin-B2/Fc stimulates endothelial cell proliferation, triggers dose-dependent migration, and suppresses cell apoptosis. Results demonstrate that soluble dose-dependent ephrinB2 can promote proliferation and migration and inhibit apoptosis of human umbilical vein endothelial cells. These results also suggest that ephrinB2 prevents ischemic disease and can potentially be a new therapeutic target for treating angiogenesis-related diseases and tumors.
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