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        후코이단에 의한 인간 폐 섬유모세포의 활성 억제 효과

        임미진 ( Mi-jin Yim ),이대성 ( Dae-sung Lee ),최그레이스 ( Grace Choi ),이정민 ( Jeong Min Lee ),최일환 ( Il-whan Choi ) 한국수산과학회(구 한국수산학회) 2016 한국수산과학회지 Vol.49 No.6

        Fucoidan, one of the dominant sulfated polysaccharides extracted from brown seaweed, possesses a wide range of biological activities. Transforming growth factor-β (TGF-β) plays a pivotal role in the pathogenesis of pulmonary fibrosis, by stimulating the synthesis of profibrotic factors. In this study, we investigated the in vitro effects of fucoidan on collagen synthesis, α-smooth muscle actin (α-SMA) expression, and interleukin (IL)-6 production in TGF-β-stimulated human pulmonary fibroblasts. The expression of type I collagen and α-SMA was detected by Western blot, and the production of IL-6 by enzyme-linked immunosorbent assay. TGF-β1 treatment of pulmonary fibroblasts enhanced the expression of α-SMA, type I collagen, and IL-6 whereas these effects were inhibited in cells pretreated with fucoidan. The activation of Smad2/3, p38 mitogen-activated protein kinases (MAPKs), and Akt was also inhibited in fucoidan-pretreated, TGF-β1-stimulated human pulmonary fibroblasts. These data demonstrate the anti-fibrotic potential of fucoidan in TGF-β-induced human pulmonary fibroblasts, via the inhibition of Smad2/3, p38 MAPKs, and Akt phosphorylation. Our results suggest the therapeutic potential of fucoidan in the prevention or treatment of pulmonary fibrosis.

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