芒柄花黄素对人增生性瘢痕成纤维细胞生长的作用Effect of formononetin on growth of human hypertrophic scar fibroblasts
回蔷;林时秀;郭冰玉;常鹏;徐志山;陶凯;
摘要(Abstract)：
目的探讨芒柄花黄素对人增生性瘢痕成纤维细胞生长的作用。方法获取手术切除的人增生性瘢痕组织以及局部皮瓣转移修复后剩余的正常皮肤,提取成纤维细胞。通过MTT试验检测不同浓度的芒柄花黄素对成纤维细胞增殖的作用,应用流式细胞术对芒柄花黄素处理后的成纤维细胞周期进行分析。通过Annexin V-FITC/PI双染色法和Hoechest 33258染色观察成纤维细胞的凋亡情况。通过Western blot与RT-PCR试验,检测芒柄花黄素对细胞周期蛋白Cyclin D1和凋亡调节蛋白Bcl-2的作用。结果与对照组比较,芒柄花黄素对正常皮肤成纤维细胞的增殖影响较小,对增生性瘢痕成纤维细胞的增殖具有明显的抑制作用,且药物浓度越高、作用时间越长,抑制作用越强。成纤维细胞大部分阻滞于G_1期,S期的细胞减少,细胞周期的进程受到阻断。芒柄花黄素能够通过抑制细胞周期蛋白Cyclin D1来影响细胞周期的进程,将细胞周期阻滞于G_1期;通过抑制抗凋亡蛋白Bcl-2的表达诱导成纤维细胞的凋亡,从而实现对细胞生长的抑制作用。结论芒柄花黄素能够抑制人增生性瘢痕成纤维细胞的增殖并诱导其凋亡,可考虑用于增生性瘢痕的预防与临床治疗。
关键词(KeyWords)： 芒柄花黄素;增生性瘢痕;成纤维细胞;增殖;凋亡
基金项目(Foundation): 辽宁省自然科学基金(20180550992)
作者(Author): 回蔷;林时秀;郭冰玉;常鹏;徐志山;陶凯;
Email:
DOI: 10.14053/j.cnki.ppcr.201905006
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