期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 522, 期 4, 页码 917-923出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2019.11.172
关键词
Substance P; Fibroblast; Migration; Senescence
资金
- [2015R1D1A1A09057839]
- [2017M3A9E4065331]
Diabetes induces cellular dysfunction in dermal fibroblasts, such as impairment in migration, which is a major cause of chronic wound. Here, we demonstrated that the migration of human dermal fibroblasts was impaired under a high glucose culture condition. Substance P (SP) rescued the impaired migration of the fibroblasts. The activity of Rac1, Rho-associated kinase (ROCK), and Src was required for SP-mediated rescue of fibroblast migration. SP activated Rac1 and Src, whereas, NSC23766, a Rac1 inhibitor, and PP1 and PP2, Src inhibitors, inhibited SP-mediated enhancement of fibroblast migration. Y-27632, a ROCK inhibitor, inhibited the SP-mediated rescue of fibroblast migration. Senescence-associated beta-galactosidase activity increased in human dermal fibroblasts cultured in a high glucose environment, but SP inhibited the b-galactosidase activity of the fibroblasts. These results suggest that SP promotes the migration of human dermal fibroblasts in diabetic-condition-mimicking cultures via the activity of Rac1, ROCK, and Src, and inhibits fibroblast senescence in hyperglycemic cultures. (C) 2019 Elsevier Inc. All rights reserved.
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