TGF-β2 induces proliferation and inhibits apoptosis of human Tenon capsule fibroblast by miR-26 and its targeting of CTGF.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie(2018)
摘要
AIM:The aim of this study was to research the effect of TGF-β2 on human enon capsule fibroblasts proliferation and apoptosis and its potential mechanism.
METHODS:Human eyeball fascia tissues (n = 45) were derived from ocular fascia tissues of patients who were underwent glaucoma filtration surgery, and Tenon capsule fibroblasts were obtained from these tissues. Liposome-mediated transfection, CCK8 assay, Hoechst33258 staining, qRT-PCR detection, western blot, and luciferase reporter assay were performed.
RESULTS:TGF-β2 promoted proliferation and inhibited apoptosis of human Tenon capsule fibroblasts in a dose-dependent manner. TGF-β2 induced down-regulation of miR-26 and up-regulation of CTGF in a dose-dependent manner. CTGF was the target gene of miR-26 and miR-26 had a negative regulatory effect on CTGF expression. miR-26 up-regulation could significantly decrease proliferation and increase apoptosis of human Tenon capsule fibroblasts after induced by TGF-β2 (P < 0.05). Down-regulation of CTGF could markly decrease proliferation and increase apoptosis of human Tenon capsule fibroblasts after induced by TGF-β2 (P < 0.05).
CONCLUSION:miR-26 could inhibit proliferation and promote apoptosis of human Tenon capsule fibroblasts after they were induced by TGF-β2 through suppressing CTGF expression.
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