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Periplocin induces apoptosis and inhibits inflammation in rheumatoid arthritis fibroblast-like synoviocytes via nuclear factor kappa B pathway
IUBMB Life ( IF 4.6 ) Pub Date : 2020-06-25 , DOI: 10.1002/iub.2328
Xin Zhang 1 , He Nan 1 , Jialong Guo 1 , Shoujun Yang 2 , Jinyu Liu 3
Affiliation  

Apoptotic resistance and excessive proliferation of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLSs) stimulated by inflammation could lead to distal joint destruction and bone damage. Periplocin could promote apoptosis, resist proliferation, and reduce inflammation. However, the effect and mechanism toward periplocin in proliferation and inflammation of RA-FLSs remain unclear. The role of tumor necrosis factor (TNF)-α induced proliferation and expression of inflammatory cytokines in RA-FLSs was established. Our studies noted that cell viability of TNF-α-induced RA-FLSs was inhibited in periplocin treatment via dose-response, whereas cell apoptosis of RA-FLSs was triggered by dose-dependent effect of periplocin. Bcl-2 protein, one of the apoptotic regulators, was downregulated, while other regulators of apoptosis, including BAX, cleaved caspase-3, and cleaved caspase-9, were upregulated in RA-FLSs under periplocin treatment. In addition, periplocin decreased the TNF-α-induced mRNA and protein expression levels of interleukin (IL)-1β and IL-6 in RA-FLSs in a dose-dependent way. Finally, the increased levels of phospho (p)-inhibitor of kappa B (IκBα)/IκBα and p-NF (nuclear factor)-κB/nuclear factor kappa B (NF-κB) ratio of RA-FLSs stimulated by TNF-α were decreased by periplocin treatment. Taken together, periplocin treatment decreased cell viability and cytokines expression and promoted cell apoptosis of TNF-α-induced RA-FLSs through inhibition of NF-κB signaling pathway, providing a potential therapeutic approach for RA.

中文翻译:

Periplocin通过核因子κB途径诱导类风湿性关节炎成纤维细胞样滑膜细胞凋亡并抑制炎症

炎症刺激的类风湿性关节炎成纤维细胞样滑膜细胞 (RA-FLSs) 的凋亡抵抗和过度增殖可能导致远端关节破坏和骨损伤。Periplocin具有促进细胞凋亡、抗增殖和减轻炎症的作用。然而,periplocin 在 RA-FLSs 增殖和炎症中的作用和机制尚不清楚。确定了肿瘤坏死因子 (TNF)-α 在 RA-FLS 中诱导增殖和炎性细胞因子表达的作用。我们的研究注意到 TNF-α 诱导的 RA-FLSs 的细胞活力在 perilocin 治疗中通过剂量反应受到抑制,而 RA-FLSs 的细胞凋亡是由 periplocin 的剂量依赖性作用触发的。Bcl-2 蛋白,一种凋亡调节因子,被下调,而其他凋亡调节因子,包括 BAX,切割的 caspase-3 和切割的 caspase-9 在 perilocin 处理下在 RA-FLS 中上调。此外,periplocin 以剂量依赖性方式降低了 RA-FLS 中 TNF-α 诱导的白细胞介素 (IL)-1β 和 IL-6 的 mRNA 和蛋白质表达水平。最后,TNF-α 刺激的 RA-FLSs 的磷酸化 (p)-κB 抑制剂 (IκBα)/IκBα 和 p-NF(核因子)-κB/核因子κB(NF-κB)比值增加perilocin 治疗降低。总之,periplocin 治疗通过抑制 NF-κB 信号通路降低了细胞活力和细胞因子表达,并促进了 TNF-α 诱导的 RA-FLS 的细胞凋亡,为 RA 提供了一种潜在的治疗方法。periplocin 以剂量依赖性方式降低 RA-FLS 中 TNF-α 诱导的白细胞介素 (IL)-1β 和 IL-6 的 mRNA 和蛋白质表达水平。最后,TNF-α 刺激的 RA-FLSs 的磷酸化 (p)-κB 抑制剂 (IκBα)/IκBα 和 p-NF(核因子)-κB/核因子κB(NF-κB)比值增加perilocin 治疗降低。总之,periplocin 治疗通过抑制 NF-κB 信号通路降低了细胞活力和细胞因子表达,并促进了 TNF-α 诱导的 RA-FLS 的细胞凋亡,为 RA 提供了一种潜在的治疗方法。periplocin 以剂量依赖性方式降低 RA-FLS 中 TNF-α 诱导的白细胞介素 (IL)-1β 和 IL-6 的 mRNA 和蛋白质表达水平。最后,TNF-α 刺激的 RA-FLSs 的磷酸化 (p)-κB 抑制剂 (IκBα)/IκBα 和 p-NF(核因子)-κB/核因子κB(NF-κB)比值增加perilocin 治疗降低。总之,periplocin 治疗通过抑制 NF-κB 信号通路降低了细胞活力和细胞因子表达,并促进了 TNF-α 诱导的 RA-FLS 的细胞凋亡,为 RA 提供了一种潜在的治疗方法。TNF-α刺激的RA-FLSs的磷酸化(p)-κB(IκBα)/IκBα抑制剂和p-NF(核因子)-κB/核因子κB(NF-κB)比值的增加水平降低通过 perilocin 治疗。总之,periplocin 治疗通过抑制 NF-κB 信号通路降低了细胞活力和细胞因子表达,并促进了 TNF-α 诱导的 RA-FLS 的细胞凋亡,为 RA 提供了一种潜在的治疗方法。TNF-α刺激的RA-FLSs的磷酸化(p)-κB(IκBα)/IκBα抑制剂和p-NF(核因子)-κB/核因子κB(NF-κB)比值的增加水平降低通过 perilocin 治疗。总之,periplocin 治疗通过抑制 NF-κB 信号通路降低了细胞活力和细胞因子表达,并促进了 TNF-α 诱导的 RA-FLS 的细胞凋亡,为 RA 提供了一种潜在的治疗方法。
更新日期:2020-06-25
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