Yangxue Jiedu Fang Ameliorates Psoriasis by Regulating Vascular Regression Via Survivin/PI3K/Akt Pathway

Overview

Journal J Immunol Res

Publisher Wiley

Specialty Allergy & Immunology

Date 2021 Feb 3

PMID 33532507

Citations 6

Authors

Hongpeng Lv

Xin Liu

Weiwen Chen

Shiju Xiao

Yunrun Ji

Xuyang Han

Yafan Li

Xiaoxu Wang

Guangzhong Zhang

Ping Li

Affiliations

Soon will be listed here.

Abstract

Background: Psoriasis (PA) is a chronic autoimmune disease of the skin that adversely affects patients' quality of life. Yangxue Jiedu Fang (YXJD) has been used for decades to treat psoriasis in China. However, its antipsoriatic mechanisms are still poorly understood. In this study, we explored the effects of YXJD on angiogenesis and apoptosis of microvessels in PA, the underlying mechanisms in HUVEC cells transfected by Survivin overexpression plasmid and in a mouse model of imiquimod-induced psoriasis and the relationship between VEGF (vascular endothelial growth factor) and Survivin.

Methods: A BALB/c mouse model of imiquimod- (IMQ-) induced PA was established, and the mice were treated with YXJD. Cell viability was assessed by CCK8 assay. Apoptosis was detected by annexin V-FITC/PI double-staining and caspase-3 assays. The PI3K/Akt/-catenin pathway was analyzed by western blotting, ELISA, and immunochemical analysis.

Results: YXJD ameliorated symptoms and psoriasis area and severity index (PASI) scores and also reduced the number of microvessels, as determined by the microvessel density (MVD). The expression of apoptotic protein Survivin in endothelial cells, autophagy-related proteins p62, and angiogenic proteins VEGF was inhibited by YXJD, and the repressed expression of LC3II/I increased by YXJD. The proteins related to the PI3K/Akt pathway and -catenin expression and the nuclear entry of -catenin were reduced in IMQ-induced PA mice treated with YXJD. In HUVEC cells transfected by Survivin overexpression plasmid, we observed YXJD regulated the expression of Survivin, LC3II/I, and p62, VEGF, and PI3K/Akt pathway-relative proteins and the nuclear entry of -catenin.

Conclusions: YXJD inhibited the expression of Survivin via PI3K/Akt pathway to adjust apoptosis, autophagy, and angiogenesis of microvessels and thus improve the vascular sustainability in psoriasis. YXJD may represent a new direction of drug research and development for immunomodulatory therapy for psoriasis.

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