摘要:目的:研究结缔组织生长因子(Connective tissue growth factor,CTGF)siRNA表达载体对瘢痕疙瘩成纤维细胞(Human keloid fibroblasts,HKFs)中CTGF表达、胶原蛋白分泌的影响。方法:根据RNA干扰(RNA interference,RNAi)设计原则,设计并构建特异性CTGF siRNA表达载体,转染体外培养HKFs。用荧光实时定量PCR分析细胞中CTGF mRNA表达水平,3H-脯氨酸掺入法测定细胞胶原蛋白分泌水平。结果:与质粒组和对照组比较,CTGF siRNA表达载体组的CTGF mRNA表达降低约59.9%(P〈0.05),胶原蛋白分泌明显下降(P〈0.05)。结论:CTGF siRNA表达载体能明显抑制HKFs中CTGF表达及胶原蛋白分泌水平,有可能成为临床上治疗瘢痕疙瘩的新方法。
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