洋金花体外抑制角质形成细胞炎性因子分泌和血管形成OACSTPCD

Objective To investigate the potential role of the traditional herbal medicine Datura metel L.in the treatment of psoriasis using TNF-α-induced inflammation in keratinocytes as a model.Methods Keratinocyte cell line HaCaT was used to establish a psoriasis cell model by tumor necrosis factor-alpha(TNF-α)treatment.The ex-periment comprised three groups:a blank control group,TNF-α-induced psoriasis model group,and TNF-α+Datura metel L.intervention group.Level of IL-17 and CCL20 was measured ELISA,expression of nuclear factor kappa B(NF-κB)subunit p65 protein was measured by Western blot.Endothelial cell tube formation experiment was conducted using an in vitro angiogenesis analysis kit.Results Compared to the TNF-α-induced psoriasis model group,the Datura metel L.extract significantly reduced the levels of IL-17 and CCL20 in the cell culture su-pernatant of TNF-α-induced psoriasis model(P＜0.001);Datura metel L.extract markedly decreased the NF-κB subunit p65 protein level in TNF-α-induced psoriasis model cells(P＜0.01);Datura metel L.extract effectively inhibited the induction of endothelial cell tube formation by the cell culture supernatant of the psoria-sis model group.Conclusions The Datura metel L.extract down-regulates NF-κB signaling pathway mole-cules,reducing the production of IL-17 and CCL20 inflammatory factors in inflammatory keratinocytes and in-hibiting angiogenesis.