上海交通大学学报(医学版) ›› 2019, Vol. 39 ›› Issue (8): 843-.doi: 10.3969/j.issn.1674-8115.2019.08.006

• 论著·基础研究 • 上一篇    下一篇

640 nm红光通过 CD26促进角质形成细胞迁移的实验研究

张闻,傅秀军,姚敏   

  1. 上海交通大学医学院附属第九人民医院整复外科,上海 200011
  • 出版日期:2019-08-28 发布日期:2019-09-23
  • 通讯作者: 姚敏,电子信箱:my058@vip.sina.com。
  • 作者简介:张闻(1992—),女,硕士生;电子信箱: zw_hayida @163.com。
  • 基金资助:
    国家自然科学基金(81272113)

Promotion of 640 nm red light on keratinocyte migration via CD26

ZHANG Wen, FU Xiu-jun, YAO Min   

  1. Department of Plastic and Reconstructive Surgery, Shanghai Ninth Peoples Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
  • Online:2019-08-28 Published:2019-09-23
  • Supported by:
    National Natural Science Foundation of China, 81272113

摘要: 目的 ·初步探究 640 nm红光促进角质形成细胞迁移的机制。方法 ·体外培养人角质形成细胞,根据干预方式不同分为 4组:对照组、 sitagliptin组(抑制 CD26表达)、640 nm红光组( 8 J/cm2)、640 nm红光 +sitagliptin组。Realtime-PCR检测角质形成细胞中 CD26 mRNA的表达水平, Western blotting检测 CD26蛋白表达情况, Transwell和细胞划痕实验观察角质形成细胞的迁移能力。结果 · Realtime-PCR和 Western blotting结果显示, 640 nm红光组与对照组相比 CD26 mRNA和蛋白表达有所升高,而 sitagliptin组明显低于对照组(均 P<0.05);Transwell和细胞划痕实验均可观察到 640 nm红光组角质形成细胞迁移能力增强,而 sitagliptin组迁移能力下降。结论 · 640 nm红光照射可促使 CD26表达增加,加快角质形成细胞迁移,从而缩短再上皮化进程。

关键词: 640 nm红光, CD26, 角质形成细胞, 创面修复, 再上皮化

Abstract:

Objective · To investigate the mechanism of 640 nm red light promoting keratinocyte migration preliminarily. Methods · Human keratinocytes were cultured in vitro and assigned to 4 groups according to different interventions, i.e. control group, sitagliptin group (CD26 inhibited), 640 nm red light group (8 J/cm2) and 640 nm red light+sitagliptin group. The levels of CD26 mRNA and protein in keratinocytes were measured with realtime-PCR and Western blotting, respectively. Cell migration was observed with Transwell assay and scratch assay. Results · The level of CD26 mRNA and the of CD26 protein in 640 nm red light group obviously increased compared with control group, while those of sitagliptin group significantly decreased (all P<0.05). Migration ability of keratinocytes increased in 640 nm red light group and decreased in sitagliptin group observedTranswell assay and scratch assay. Conclusion · The of CD26 in keratinocytes is promotedthe 640 nm red light, which can accelerate keratinocyte migration to facilitate re-epithelialization.

Key words: 640 nm red light, CD26, keratinocyte, wound healing, re-epithelialization

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