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The role of focal adhesion kinase in the TGF-β-induced myofibroblast transdifferentiation of human Tenon's fibroblasts.

Authors
 Samin Hong  ;  Jong Bok Lee  ;  Yoko Iizuka  ;  Yoo Kyung Song  ;  Gong Je Seong  ;  Sueng-Han Han 
Citation
 Korean Journal of Ophthalmology, Vol.26(1) : 45-48, 2012 
Journal Title
 Korean Journal of Ophthalmology 
ISSN
 1011-8942 
Issue Date
2012
Abstract
PURPOSE: To investigate the role of focal adhesion kinase (FAK) in transforming growth factor (TGF)-β-induced myofibroblast transdifferentiation of human Tenon's fibroblasts. METHODS: Primary cultured human Tenon's fibroblasts were exposed to TGF-β1 for up to 48 hours. The mRNA levels of FAK, α smooth muscle actin (αSMA), and β-actin were determined by quantitative real time reverse transcription polymerase chain reaction. The protein levels of collagen type I, FAK, phospho-FAK, αSMA, and β-actin were determined by Western immunoblots. After the small interfering RNA targeting FAK (siRNA(FAK)) molecules were delivered into the cells, the expressions of αSMA proteins were determined by Western immunoblots. RESULTS: In human Tenon's fibroblasts, TGF-β1 significantly increased the mRNA and protein expressions of αSMA. However, when the action of FAK was inhibited using siRNA(FAK), the TGF-β1-induced expression of αSMA was attenuated. CONCLUSIONS: Our data suggest that FAK may be associated with the TGF-β1-induced transdifferentiation of human Tenon's fibroblasts to myofibroblasts, which is the essential step of subconjunctival fibrosis.
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DOI
10.3341/kjo.2012.26.1.45
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실)
Yonsei Authors
성공제(Seong, Gong Je) ORCID logo https://orcid.org/0000-0002-5456-4296
이종복(Lee, Jong Bok)
이주카요코(Iizuka, Yoko)
한승한(Han, Seung Han) ORCID logo https://orcid.org/0000-0001-8972-4790
홍사민(Hong, Sa Min)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/91300
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