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微小RNA21和程序性细胞死亡因子4在人增生性瘢痕中的表达 被引量:3

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摘要 目的观察微小RNA21基因及其靶蛋白程序性细胞死亡因子4(PDCD4)在人增生性瘢痕中的表达,并分析其相关性。方法取南昌大学第一附属医院烧伤整形科收治的8例烧伤整形患者增生性瘢痕及其邻近的正常皮肤组织,提取总RNA,采用实时定量RT—PCR技术检测2种组织标本中微小RNA21基因表达量;蛋白质印迹法及免疫组织化学染色检测2种组织标本中PDCD4胥白表达。对数据行配对t检验及Pearson相关分析。结果增生性瘢痕组织中微小RNA21基因表达明显上调(t=2.50,P=0.04),其表达量是正常皮肤组织的5.51倍。增生性瘢痕组织中PDCD4蛋白的相对表达量为0.28±0.06,明显低于正常皮肤组织(0.71±0.05,t=15.57,P〈0.01)。免疫组织化学染色显示,与正常皮肤组织比较,增生性瘢痕组织中PDCD4蛋白表达下降。增生性瘢痕组织中微小RNA21基因表达量与PDCD4蛋白表达量呈负相关(r=-0.945,P〈0.01)。结论微小RNA21基因勺PDCD4蛋白在增生性瘢痕中异常表达,可能与增生性瘢痕的形成有关。
出处 《中华烧伤杂志》 CAS CSCD 北大核心 2013年第5期479-481,共3页 Chinese Journal of Burns
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参考文献9

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