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Therapeutic effects of the extract of sancao formula, a Chinese herbal compound, on imiquimod-induced psoriasis via cysteine-rich protein 61

引用

Journal of Integrative Medicine 2022年第4期20卷 376-384页

作者： Wan-jun Guo Yi Wang Yu Deng Lin-yan Cheng Xin Liu Ruo-fan Xi Sheng-jie Zhu Xin-yi Feng Liang Hua Kan Ze Jian-yong Zhu Dong-jie Guo Fu-lun Li Department of Dermatology Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China School of Medicine Chengdu UniversityChengdu 610106Sichuan ProvinceChina Institute of Cancer Biology and Drug Discovery Chengdu UniversityChengdu 610106Sichuan ProvinceChina Clinical Laboratory Medicine Center Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China

Objective: Psoriasis is a common chronic inflammatory skin disease that is prone to recurrence, and the proinflammatory factor, cysteine-rich protein 61(Cyr61), is important in its pathophysiology. Long-term clinical practice has shown that sancao formula(SC), a Chinese herbal compound, is effective in the treatment of psoriasis, but the precise mechanism remains unknown. In this study, we investigate the mechanism by which SC extract alleviates imiquimod(IMQ)-induced psoriasis.Methods: The expression of Cyr61 in psoriatic lesions and normal healthy skin was detected using immunohistochemical analysis to investigate the biological role of Cyr61 in models of psoriatic inflammation. A psoriatic mouse model was established by topical application of IMQ, and the effect of topical application of SC extract was evaluated using the psoriasis area and severity index(PASI) score,hematoxylin-eosin staining, and histopathological features of the skin. Next, a HaCaT cell inflammation model was established using interferon-γ(IFN-γ), and the effect of SC extract on the mRNA and protein levels of Cyr61 and intercellular cell adhesion molecule-1(ICAM-1) was confirmed using Western blot and quantitative real-time polymerase chain reaction analyses.Results: Immunohistochemical staining showed that the expression of Cyr61 in psoriatic lesions was higher than that in normal skin samples(78.26% vs 41.18%, P < 0.05), and the number of Cyr61-positive cells in psoriatic lesions was also significantly higher than in normal skin(18.66 ± 2.51 vs4.33 ± 1.52, P < 0.05). Treatment in mice with IMQ-induced psoriasis showed that SC extract could significantly improve the inflammatory phenotype, PASI score(10.875 ± 0.744 vs 3.875 ± 0.582, P < 0.05),and pathological features compared with those in IMQ model group;SC treatment was also associated with decreased levels of Cyr61 and ICAM-1. In the IFN-γ-induced inflammatory cell model, the mRNA and protein levels of Cyr61 and ICAM-1 were upregulated, while the SC extract downregulated the levels of

关键词： Traditional Chinese medicine sancao formula Psoriasis Plant extracts Cysteine-rich protein 61 Intercellular cell adhesion molecule-1

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