期刊
KAOHSIUNG JOURNAL OF MEDICAL SCIENCES
卷 35, 期 5, 页码 284-296出版社
WILEY
DOI: 10.1002/kjm2.12034
关键词
ERK signaling pathway; keratinocyte; KRT16; psoriasis; vascular endothelial growth factor
资金
- Administration of Traditional Chinese Medicine of Zhejiang Province [2017ZB097]
- Science and Technology Bureau of Taizhou [1701KY29]
- Science and Technology Bureau of Wenling [2016C311142]
Psoriasis is a multisystem disease affecting about 2% of the population, while keratin16 (KRT16) has been reported to participate in psoriasis. However, the specific mechanism of KRT16 in psoriasis was inadequately investigated. The objective of the study was to elucidate the mechanism by which siRNA-mediated silencing of KRT16 affects keratinocyte proliferation and vascular endothelial growth factor (VEGF) secretion in psoriasis through the extracellular signal-related kinase (ERK) signaling pathway. Psoriasis-related core gene KRT16 was screened out. Then, the expression of KRT16, VEGF, and ERK signaling pathway-related genes was detected in psoriatic patients. To further investigate the mechanism of KRT16, keratinocytes in psoriatic patients were treated with KRT16 siRNA or/and ERK inhibitor (PD98059) to detect the changes in related gene expression and cell survival. KRT16 was involved in psoriasis development. The expression levels of KRT16, p-ERK1/2, and VEGF in lesion tissues are significantly elevated. Keratinocytes treated with KRT16-siRNA and KRT16-siRNA + PD98059 exhibited reduced KRT16, p-ERK1/2, and VEGF expression. The cell survival rate in cells treated with KRT16-siRNA, PD98059, and KRT16-siRNA + PD98059 reduced significantly. These findings indicate that silencing KRT16 inhibits keratinocyte proliferation and VEGF secretion in psoriasis via inhibition of ERK signaling pathway, which provides a basic theory in the treatment of psoriasis.
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