伊古拉提莫德 (Iguratimod) 是一种有前途的COVID-19治疗药物,可以在小鼠模型中减轻过度炎症
Seiya Oba1, Tadashi Hosoya1, Daisuke Kawata1
1Department of Rheumatology, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan; Department of Pathology, National Institute of Infectious Diseases, Tokyo, 208-0011, Japan.
European journal of pharmacology
|March 27, 2025
概括
一种关节炎药物Iguratimod (IGU) 通过减少炎症而不会损害抗病毒免疫力,改善了患有严重COVID-19的肥胖小鼠的生存率. 这表明IGU是潜在的COVID-19治疗方法,特别是对于肥胖患者.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 药理学 药理学是指药理学的学科.
背景情况:
- 严重的COVID-19的特征是过度炎症和细胞因子风暴,导致多器官功能障碍.
- 目前的抗炎治疗方法,如葡萄糖皮质类药物提供部分益处,但可能会损害免疫系统.
- 感染SARS-CoV-2的肥胖小鼠作为研究COVID-19细胞因子风暴的相关模型.
研究的目的:
- 为了研究iguratimod (IGU) 的疗效,一种抗风湿药物,在治疗严重的COVID-19,特别是在肥胖的模型.
- 在SARS-CoV-2小鼠模型中,比较IGU与德甲 (DEX) 对生存,炎症和免疫反应的影响.
- 探索IGU用于管理COVID-19的药物重新定位的潜力.
主要方法:
- C57BL/6小鼠在感染小鼠适应的SARS-CoV-2之前被食高脂肪 (HFD) 或正常脂肪饮食 (NFD).
- 小鼠接受了伊古拉莫德 (IGU) 或甲 (DEX) 的治疗.
- 评估了生存率,肺炎,病毒载量,干扰素诱导的基因表达和SARS-CoV-2阳性细胞.
主要成果:
- 在HFD养的小鼠中,IGU显著改善了生存率和减少了肺炎,对抗病毒免疫力 (干扰素基因,病毒载荷) 的影响很小.
- 德甲 (DEX) 与IGU不同,没有改善存活率和抑制免疫反应.
- IGU在HFD小鼠中表现出预防和治疗效益,在NFD小鼠中表现出疗效,尽管病毒复制具有可比性,但观察到的SARS-CoV-2阳性细胞较少.
结论:
- 伊古拉提莫德 (IGU) 是一种有希望的治疗候选人,用于严重的COVID-19,特别是在肥胖患者中,通过调节炎症而不会影响抗病毒防御.
- IGU为COVID-19治疗提供了一种潜在的药物重新定位策略,超出了其在类风湿性关节炎的批准用途.
- 这项研究强调了IGU对细调炎症的能力,与广泛的免疫抑制相比,具有明显的优势.
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