Jak1/STAT3 pathway mediates the inhibition of lipoxin A4 on TNF-α-induced DNA synthesis of glomerular mesangial cells in rats
Shenghua Wu
Chao LU
Ling Dong
Ziqing Chen
摘要：Objective: To examine whether lipoxin A4 (LXA4) has an inhibitory effect on tumor necrosis factor-α(TNF-α)-induced DNA synthesis of glomerular mesangial cells of rat, and explore the molecular mechanisms of LXA4 action. Methods: Glomerular mesangial cells of rat were cultured and preincubated with LXA4 at different concentrations, and then treated with TNF-α( 10 ng/ml). DNA synthesis was assessed by the incorporation of [3H]-thymidine in mesangial cells. Expression of cyclin E protein was determined by Western blotting analysis. Activities of signal transducers and activators of transcription-3 (STAT3) were analyzed by electrophoretic mobility shift assay (EMSA). Results: TNF-α-stimulated DNA synthesis of mesangial cells, upregulation of cyclin E protein and STAT3 activities were inhibited by LXA4 in a dose-dependent manner. Conclusion: TNF-α-induced DNA synthesis of mesangial cells can be inhibited by TXA4probably through the mechanism of Jak1/STAT3 pathway-dependent signal transduction.
机标关键词：
分类号：R3(基础医学)
资助基金：江苏省卫生厅135工程医学重点人才基金(2002-45)
论文发表日期：2005-09-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：4( 223-226 )
英文信息