Front Immunol:Antcin K抑制滑膜成纤维细胞TNF-α、IL-1、IL-8的表达并改善软骨退化

2022-01-11 医路坦克 MedSci原创

类风湿性关节炎(RA)是一种自身免疫性慢性炎症性疾病,发病机制复杂,目前尚不完全清楚, 我们的数据支持使用Antcin K治疗类风湿性关节炎的临床研究。

     类风湿性关节炎(RA)是一种自身免疫性慢性炎症性疾病,发病机制复杂,目前尚不完全清楚,但已知的是炎性细胞浸润关节,继而出现肿胀、滑膜细胞增生、软骨损伤和骨侵蚀。由活化的RA滑膜成纤维细胞(RASF)产生的促炎细胞因子破坏了介导骨稳态的微环境。RASF被认为是软骨骨降解的主要分解因子,因为它们刺激与RA疾病相关的促炎细胞因子的产生,包括肿瘤坏死因子α(TNF-α)、白细胞介素1β(IL-1b)、IL-8和IL-6。

    与类风湿性关节炎相关的症状性疼痛和炎症通常是在现有类风湿性关节炎治疗的基础上开出的非甾体抗炎药(NSAIDs)和类固醇抗炎药(皮质类固醇),而合成的或生物的抗风湿性药物(DMARDs)与皮质类固醇可以作为新诊断的类风湿性关节炎的一线治疗药物以实现疾病缓解。非甾体抗炎药(NSAID)和皮质激素通常用于类风湿关节炎(RA)治疗。然而,它们的长期安全性还有待证实,因为最近Cochrane Review对这些抗炎药在长期治疗类风湿性关节炎中的有效性和安全性的随机临床试验证据进行的Cochrane审查得出结论,非甾体抗炎药的证据质量总体上非常低,缺乏皮质激素的荟萃分析证据。重要的是,RA疾病的长期药物治疗往往与严重的副作用有关,如细胞减少、耐受性差、皮疹,有时还会出现传统的DMARDS的肝脏损害,需要具有良好耐受性的新的治疗方案来阻止类风湿性关节炎的进展。传统的中草药含有能够治疗各种疾病的功能性化合物,是药物开发的重要来源。

     台湾传统药用蘑菇肉桂的提取物在细胞和临床前研究中显示出抗炎活性。然而,本文首次报道了从该植物中分离得到的三萜类化合物Antcin K。肉桂能抑制人类类风湿滑膜成纤维细胞(RASF)促炎细胞因子的产生,RASF是类风湿关节炎(RA)疾病的主要参与者。在我们对作用机制的分析中,Antcin K抑制了三种细胞因子(肿瘤坏死因子α[TNF-α]、白细胞介素1β[IL-1b]和IL-8)在人RASF中的表达,这三种细胞因子对RA滑膜炎症至关重要。值得注意的是,RASF与Antcin K孵育后,粘着斑激酶(FAK)、磷脂酰肌醇3-激酶(PI3K)、蛋白激酶B(AKT)和核因子-kB(NF-kB)信号通路的磷酸化程度降低,所有这些都促进了RA细胞因子的产生。腹腔注射Antcin K(10 mg/kg或30 mg/kg)可减轻胶原诱导性关节炎(CIA)小鼠足跖肿胀、软骨退化和骨质侵蚀,降低血清TNF-α、IL-1b、IL-8水平,进一步实验中IL-6水平也有类似的降低。Antcin K通过下调FAK、PI3K、AKT和NF-kB信号通路,抑制人RASF中TNF-α、IL-1、IL-8的表达。

    我们的数据支持使用Antcin K治疗类风湿性关节炎的临床研究。

文献来源:Achudhan D,  Liu SC,  Lin YY, Antcin K Inhibits TNF-a, IL-1band IL-8 Expression in Synovial Fibroblasts and Ameliorates Cartilage Degradation: Implications for the Treatment of Rheumatoid Arthritis,Front Immunol 2021;12

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    2022-09-06 kalseyzl
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    2022-01-12 snowpeakxu
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    2022-01-12 jjjiang0202
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    2022-01-12 respect

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