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- 저자 : Yu Jiaao (검색결과 1 건)
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Liu Xianjun,Gao Xinxin,Li Hao,Li Zhandong,Wang Xiaoe,Zhang Li,Wang Bo,Chen Xinxin,Meng Xianglong,Yu Jiaao 한국응용생명화학회 2021 Applied Biological Chemistry (Appl Biol Chem) Vol.64 No.5
Hypertrophic scar (HS) is a kind of serious pathological scar with no currently effective treatment. HS fibroblasts (HSFs) are the main effector cells for HS formation. Ellagic acid (EA) exerts regulatory effects in some diseases, but its role in HS remains unclear. This study aimed to evaluate the effect of EA on the fibrotic phenotypes of HSFs and to further investigate the downstream signaling mechanism. The cell counting kit-8 (CCK-8) assay was used to perform cytotoxicity and proliferation assays. HSFs migration was assessed using wound healing and transwell assays. HSFs contraction was measured by a collagen lattice contraction assay and detection of α-smooth muscle actin (α-SMA) expression. The levels of mRNA and protein were determined by qPCR and western blotting, respectively. The results showed that EA inhibited the proliferation, migration, and contraction of HSFs and collagen expression in HSFs in a dose-dependent manner. Furthermore, EA not only suppressed the Smad2/3 pathway but also reversed TGF-β1- induced activation of the Smad2/3 pathway and up-regulation of the fibrotic cellular phenotypes in HSFs. These findings demonstrate that EA exerts anti-fibrotic effects on HSFs by blocking the TGF-β1/Smad2/3 pathway, which indicates that EA is a potential therapeutic candidate for treatment of HS.
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