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 Ophthalmoljournal_title
International journal of ophthalmologyauthors
Pei C,Ma B,Kang QY,Qin L,Cui LJdoi
10.3980/j.issn.2222-3959.2013.06.03subject
Has Abstractpub_date
2013-12-18 00:00:00pages
752-7issue
6eissn
2222-3959issn
2227-4898pii
ijo-06-06-752journal_volume
6pub_type
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journal_title:International journal of ophthalmology
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