解放军医学杂志2018，Vol.43Issue(4)：316-321,6.DOI:10.11855/j.issn.0577-7402.2018.04.09
wnt5a诱导心肌祖细胞向心肌细胞分化的作用研究
Studies on wnt5a inducing differentiation of cardiac progenitor cells to myocardial cells
吴良宇 1向平 1刘玲娟 1何通川 2房松华 1吕铁伟 1田杰 1李谧1
作者信息
- 1. 400014重庆 重庆医科大学附属儿童医院心内科、儿童发育疾病研究教育部重点实验室、重庆市重点实验室、儿童发育重大疾病国家国际科技合作基地
- 2. 60637美国芝加哥 芝加哥大学分子肿瘤实验室
- 折叠
摘要
Abstract
Objective To investigate the effect of Wnt5a on inducing differentiation of Cp15-5a cell to myocardial cell.Methods Recombinant adenovirus wnt5a (Ad-wnt5a) and Ad-GFP was amplified with human embryo kidney 293 cells (HEK293 cells),and then transfected into CP15-5a cells and 3 experiment groups were set up:wnt5a group,GFP group and blank control group.Flow cytometry was used to detect the transfection efficiency of Ad-wnt5a and Ad-GFP.One week after transfection,the expressions of genes GATA binding protein 4 (GATA4) and myocardial enhancement factor 2C (MEF2C) were analyzed by realtime quantitative PCR (qRT-PCR).Two weeks after transfection,the expressions of cardiac-specific connexin 43 (Cx43) and cardiac troponin T (cTnT) in Ad-wnt5a-induced CP15-5a cells were detected by Western blotting and immunofluorescence techniques.The sodium current expression (INa) was detected by whole cell patch clamp techniques.Results The transfection efficiency of Ad-wnt5a and Ad-GFP was 42.8％ and 44.3％,respectively.One week after transduction,the expressions of GATA4 and MEF2C were significantly higher in wnt5a group (1.717 ± 0.220 and 1.847 ± 0.190) than in GFP group (1.003 ± 0.087 and 0.456 ± 0.042,P＜0.05) and blank control group (0.961 ± 0.063 and 0.500 ± 0.095,P＜0.05),while no significant difference existed between GFP group and blank control group.Two weeks after transduction,the expressions of CX43 and cTnT were significantly higher in wnt5a group (1.597 ± 0.267 and 0.727 ± 0.100) than in GFP group (0.723 ± 0.047 and 0.217 ± 0.021,P＜0.05) and blank control group (0.783 ± 0.1333 and 0.253 ± 0.102,P＜0.01),while no significant difference existed between GFP group and blank control group.INa was detected in the wnt5a group compared with GFP group and blank control group.Conclusion wnt5a may induce differentiation of cp 15-5a cell into myocardial cell.关键词
wnt5a/心肌祖细胞/心肌细胞Key words
wnt5a/cardiac progenitor cells/cardiomyocytes分类
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吴良宇,向平,刘玲娟,何通川,房松华,吕铁伟,田杰,李谧..wnt5a诱导心肌祖细胞向心肌细胞分化的作用研究[J].解放军医学杂志,2018,43(4):316-321,6.
