摘要来源: ann dermatol。 2017年4月; 29(2):149-155。 EPUB 2017 3月24日。PMID: 28392641“> 28392641” Kim, You-Sun Kim, Seonghyang Sohn, You Chan Kim Hyun Soo Lee BACKGROUND: Keloids are characterized by excessive collagen deposition in the dermis, in which transforming growth factorβ(TGF-β)/Smad signaling plays一个重要的角色。据报道,低水平的光疗法(LLLT)最近在临床报告中有效预防酮。迄今为止,研究S调查LLLT对脚轮成纤维细胞的影响极为罕见。 客观: METHODS: Keloid fibroblasts were isolated from keloid-revision surgery samples and irradiated using 410-, 630-, 830-nm light emitting diode twice, with a 24-hour interval at 10 J/cm.辐照后,将细胞孵育24和48小时,并进行实时定量逆转录聚合酶链反应。上次辐照后48小时也进行了蛋白质印迹分析。分析了胶原蛋白I型,TGF-β1,Smad3和Smad7的基因和蛋白质。 结果: 我们观察到我们没有统计学上的核苷纤维纤维纤维纤维纤维固定性变化辐照后。与非辐照对照相比,胶原型I型是唯一的基因,其表达在410 nm处显着降低。 Western blot analysis showed that LLLT at 410 nm lowered the protein levels of collagen type I compared to the control. CONCLUSION: LLLT at 410 nm decreased the expression of collagen type I in keloid fibroblasts and might be effective in preventing keloid formation in their initial阶段。