Therapeutic effects of antigen affinity-purified polyclonal anti-receptor of advanced glycation end-product (RAGE) antibodies on cholestasis-induced liver injury in rats

详细信息    查看全文

• 作者：Peng Xia^a ; Qing Deng^a ; Jin Gao^b ; Xiaolan Yu^a ; Yang Zhang^b ; Jingjing Li^b ; Wen Guan^a ; Jianjun Hu^c ; Quanhui Tan^c ; Liang Zhou^a ; Wei Han^b ; Yunsheng Yuan^b ; ^d ; ^{yunsheng@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yan Yu^a ; ^{yanyu@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Vitamin K1 (PubChem CID ; 5284607)
• 刊名：European Journal of Pharmacology
• 出版年：2016
• 出版时间：15 May 2016
• 年：2016
• 卷：779
• 期：Complete
• 页码：102-110
• 全文大小：5905 K

文摘

Cholestasis leads to acute hepatic injury, fibrosis/cirrhosis, inflammation, and duct proliferation. We investigated whether blocking receptor of advanced glycation end-products (RAGE) with polyclonal anti-RAGE antibodies (anti-RAGE) could regulate acute liver injury and fibrosis in a rat bile duct ligation (BDL) model. Male Wister rats received 0.5 mg/kg rabbit anti-RAGE or an equal amount of rabbit IgG by subcutaneous injection twice a week after BDL. Samples of liver tissue and peripheral blood were collected at 14 days after BDL. Serum biochemistry and histology were used to analyze the degree of liver injury. Quantitative real-time PCR (qPCR) and immunohistochemical staining were used to further analyze liver injury. Anti-RAGE improved the gross appearance of the liver and the rat survival rate. Liver tissue histology and relevant serum biochemistry indicated that anti-RAGE attenuated liver necrosis, inflammation, liver fibrosis, and duct proliferation in the BDL model. qPCR and western blotting showed significant reductions in interleukin-1β expression levels in the liver by treatment with anti-RAGE. Anti-RAGE also significantly reduced the mRNA levels of α1(1) collagen (Col1α1) and cholesterol 7α-hydroxylase, and the ratio of tissue inhibitor of matrix metalloproteinase-1 to matrix metalloproteinases (MMPs) in the liver. In addition, anti-RAGE regulated the transcriptional level of Col1α1 and MMP-9 in transforming growth factor-β-induced activated LX-2 cells in vitro. Anti-RAGE was found to inhibit hepatic stellate cell proliferation in vivo and in vitro. Therefore, anti-RAGE can protect the liver from injury induced by BDL in rats.