Welcome to China Surfactant Detergent & Cosmetics, Today is

China Surfactant Detergent & Cosmetics ›› 2021, Vol. 51 ›› Issue (9): 874-880.doi: 10.3969/j.issn.1001-1803.2021.09.010

• Development and application • Previous Articles     Next Articles

Dynamic changes of gene expression induced by long-wave ultraviolet radiation in human dermal fibroblasts

Yin Qingfei,Chen Tian()   

  1. Research & Development Center, Shanghai Jahwa United Co., Ltd., Shanghai 200082, China
  • Received:2020-12-30 Revised:2021-08-26 Online:2021-09-22 Published:2021-09-23
  • Contact: Tian Chen E-mail:chentian@jahwa.com.cn

Abstract:

The dynamic changes of extracellular matrix, cell cycle and senescence-related genes at mRNA level in human primary dermal fibroblasts were studied by irradiated with different cumulative doses of ultraviolet UVA (1-7 days). The results show that the expression of the collagen genes COL1A2 and COL4A1 is up-regulated at day 1 and decreases at day 3, while the mRNA level of the elastin gene ELN remains unchanged at day 1 and decreases at day 3. The expression of the matrix metalloproteinase genes MMP1 and MMP9 increases significantly at day 5 after UVA irradiation. Further studies show that the cell cycle is arrested in S phase and G2/M phase after 3 and 5 days after UVA irradiation. The expression of cell cycle related gene CDKN2A is down-regulated, and that of TP53 gene is up-regulated at first and then down-regulated. CDKN1A gene is up-regulated, and reaches the highest level at day 3 after UVA irradiation. Compared with the control group, the expression of aging-related genes SIRT1 and HDAC1 is up-regulated at first, then decreases, and increases again. The results show that the changes of cell senescence induced by UVA irradiation is a programmed regulation process, and different groups of genes in fibroblasts show diverse trends of dynamic changes under UVA irradiation. The suitable biomarkers should be selected according to the specific aims in the application of cell senescence model for researching anti-aging effect of cosmetics.

Key words: dermal fibroblasts, photoaging, ultraviolet A, extracellular matrix, cell cycle, cosmetics

CLC Number: 

  • TQ658