Penghui Li, Yongliang Li, Hong Jiang
Jun 1, 2018
Citations
0
Influential Citations
30
Citations
Quality indicators
Journal
International Immunopharmacology
Abstract
ABSTRACT In this paper, we investigate the effect of glabridin (Glab) on psoriasis. We observed that Glab significantly suppressed the levels of nitric oxide (NO), NF‐&kgr;B subunit p65, interleukin (IL)‐6, and IL‐1&bgr; in lipopolysaccharide (LPS)‐stimulated HaCaT cells. In addition, Glab treatment reduced the expression of IL‐17A, IL‐22, and IL‐23 in TNF‐&agr;‐stimulated‐HaCaT cells. These findings prompted us to test whether Glab could be used to treat psoriasis in vivo. The effects of Glab on PASI scores, histopathological changes, oxidative/anti‐oxidative indexes and pro‐inflammatory cytokines in IMQ‐induced mice were investigated. The results indicated that Glab could reduce the PASI scores and ameliorate the deteriorating histopathology. Interestingly, RT‐PCR revealed that Glab significantly decreased the mRNA expression of p65, IL‐6, IL‐1&bgr;, IL‐17A, IL‐22, and IL‐23. These results were confirmed by Western blot analysis and immunohistochemistry staining. In conclusion, our present study revealed that Glab had beneficial effects on psoriasis, and the underlying mechanism may be associated with the downregulation of pro‐inflammatory cytokines and the improvement of antioxidant status. Hence, Glab is a promising candidate molecule for development of effective psoriasis therapies. HIGHLIGHTSGlabridin exhibits potent anti‐psoriasis effects on IMQ‐induced mice.Glabridin displays anti‐psoriasis activity through downregulated proinflammatory cytokines and mediators.Glabridin shows anti‐psoriasis activity by improving the antioxidant status.