Review Article

The Role of Connexin in Ophthalmic Neovascularization and the Interaction between Connexin and Proangiogenic Factors

Table 1

Effect of Cx43 on angiogenic factors.

Connexin typeAngiogenic factorsComment

Cx43VEGF [32]Cx43 facilitated the transport of VEGF from glioblastoma to endothelial cells
Cx43 GJVEGF [31]BM-MNC promoted VEGF uptake into HUVEC through gap junction-mediated pathway
CX43 HCVEGF [22]Inhibition of Cx43 prevented the release of VEGF from human adult retinal pigment epithelial cells
Cx43 HC and GJVEGF [38]Inhibition of Cx43 upregulated VEGF mRNA expression
Cx43 GJVEGF [39]Inhibition of Cx43 blocked the effect of VEGF on endothelial progenitor cells homing and reendothelialization
Cx43VEGF [24, 25]Suppression of Cx43 reduced VEGF secretion from human endometrial stromal cells
Cx43VEGF [36]Suppression of Cx43 expression in human breast cancer cells increased VEGF expression
Cx43VEGF [40]Inhibition of Cx43 gap junction function upregulated mRNA and protein expression of VEGF in gingival fibroblasts
Cx43VEGF [23]During oxidative stress conditions, overexpression of Cx43 in retinal pigment epithelial cells reduced gene and protein expression of VEGF
Cx43VEGF [35]Downregulation of Cx43 alleviated angiogenesis and VEGF secretion from endothelial progenitor cells
Cx43VEGF [37]Downregulation of Cx43 in tumor cells promoted VEGF expression leading to angiogenesis
Cx43VEGF [28]Suppression of Cx43 expression in mouse brain microvascular endothelial cells reduced the expression of VEGF
Cx43bFGF [41]Downregulation of Cx43 expression decreased bFGF expression in prolactinoma cells
Cx43bFGF and VEGF [42]Overexpression of Cx43 in MSCs promoted the release of VEGF and bFGF from infarcted heart
Cx43MMP2 and MMP9 [43]Inhibition of the function of Cx43 in HUVECs downregulated MMP2 and MMP9 expression
Cx43MMP9 [44]Inhibition of Cx43 reduced MMP9 expression in MDA-MB-231 breast cancer cells
Cx43Claudin-5 and ZO-1 [45]Downregulation of Cx43 decreased the expression of Claudin-5 and ZO-1, thus increasing vascular permeability
Cx43Claudin-5 and ZO-1 [28]Cx43 stabilized blood vessels during chronic cerebral hypoperfusion. The expression of ZO-1 and Claudin-5 in Cx43+/− mice was downregulated
Cx43Claudin-5 and ZO-1 [46]Overexpression of Cx43 promoted vascular growth and vascular leakage
Cx43VE-cadherin [47]Downregulating Cx43 increased vascular leakage by decreasing expression of VE-cadherin