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Chinese Journal of Injury Repair and Wound Healing(Electronic Edition) ›› 2022, Vol. 17 ›› Issue (06): 531-534. doi: 10.3877/cma.j.issn.1673-9450.2022.06.012

• Review • Previous Articles     Next Articles

Research progress on the senescence of epidermis and epidermal stem cells

Jiachen Sun1, Yaoyao Song1, Chuanan Shen1,(), Hongqing Zhao1, Tianjun Sun1   

  1. 1. Senior Department of Burns and Plastic Surgery, Fourth Medical Center of Chinese People′s Liberation Army General Hospital, Beijing 100048, China
  • Received:2022-08-27 Online:2022-12-01 Published:2022-11-30
  • Contact: Chuanan Shen

Abstract:

Located in the outermost layer of the body, epidermis is the first barrier to protect the body from external harmful substances. Mainly distributed in the basal layer of the epidermis, epidermal stem cells are seed cells whose proliferation, differentiation and apoptosis are closely related to the maintenance of epidermal homeostasis and damage repair. The senescence-related changes of epidermal structure, function, cell composition and damage repair ability have been introduced by reviewing the researches. Also the senescence-related changes of division, proliferation, differentiation and apoptosis of epidermal stem cells have been summarized. The analysis shows that the changes of cell composition and cell functional status in the epidermis are closely related to the senescence of epidermis, and these are expected to become a treatment target for reversing skin aging.

Key words: Epidermis, Aging, Cell proliferation, Apoptosis

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