Effects of transforming growth factor β2 and connective tissue growth factor on induction of epithelial mesenchymal transition and extracellular matrix synthesis in human lens epithelial cells.

Abstract:

AIM:To investigate the effects of transforming growth factor β2 (TGF-β2) and connective tissue growth factor (CTGF) on transdifferentiation of human lens epithelial cells (HLECs) cultured in vitro and synthesis of extracellular matrix (ECM). METHODS:HLECs were treated with TGF-β2 (0, 0.5, 1.0, 5, 10µg/L) and CTGF (0, 15, 30, 60, 100µg/L) for different times (0, 24, 48, 72h) in vitro and the expression of α-smooth muscle actin (α-SMA), the main component of the extracellular matrix type I collagen (Col-1) and fibronectin (Fn) were measured by using real-time polymerase chain reaction (PCR) and western-blot. RESULTS:TGF-β2 and CTGF significantly increased expression of α-SMA mRNA and protein (P<0.05, P<0.001), Fn mRNA and protein (P<0.001), Col-1 mRNA and protein (P<0.001). TGF-β2 could induce HLECs expression of CTGF mRNA and protein in dose-dependent manner (P<0.05, P<0.001). TGF-β2 and CTGF could induce HLECs to express α-SMA, Fn and Col-1 in time-dependent manner. Each time of TGF-β2 and CTGF induced HELCs expression of α-SMA, Fn, Col-1 mRNA and protein was significant increase compared with control (P<0.05, P<0.001). CONCLUSION:TGF-β2 and CTGF could induce HLECs epithelial mesenchymal transition and ECM synthesis.

journal_name

Int J Ophthalmol

authors

Pei C,Ma B,Kang QY,Qin L,Cui LJ

doi

10.3980/j.issn.2222-3959.2013.06.03

subject

Has Abstract

pub_date

2013-12-18 00:00:00

pages

752-7

issue

6

eissn

2222-3959

issn

2227-4898

pii

ijo-06-06-752

journal_volume

6

pub_type

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