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丁丁达尼布通过向Src信号来减轻NLRP3炎症酶驱动的肝纤维化

Ye-Ting Wu¹, Qi-Zhe Li², Yi-Qi Wu³

¹Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.

International immunopharmacology

|November 16, 2024

概括

丁丁达尼布是一种氨酸激酶抑制剂,通过抑制NLRP3炎症酶激活和炎症来降低肝纤维化. 这项研究表明,通过向Src信号通路,它有潜力治疗肝纤维化.

科学领域:

肝病学和免疫学肝病学和免疫学
药理学和药物发现

背景情况:

肝损伤会引发炎症和肝星细胞激活,从而引发肝纤维化.
丁丁达尼布是一种氨酸激酶抑制剂,已被批准用于异常性肺纤维化,但其在肝纤维化中的作用尚不清楚.
炎症酶路径,特别是NLRP3,与肝纤维化病原发生有关.

研究的目的:

在碳四化物诱导的肝纤维化模型中研究宁泰达尼布的抗纤维性疗效.
评估宁泰达尼布对核酸寡合化域类受体家族含林域3 (NLRP3) 炎症酶激活在体外的作用.
为了探索 nintedanib 的分子点,包括 Src 信号通路,在肝纤维化中.

主要方法:

一个碳四化物 (CCl4) 诱导的肝纤维化模型 in vivo.
在LX-2细胞中激活NLRP3炎症酶,使用脂多糖和ATP.
评估宁泰达尼布对炎症酶激活,Src信号和纤维细胞标记物的影响.
使用lentiviruses来操纵LX-2细胞中的Src表达.

主要成果:

丁丁达尼布减轻了肝炎和纤维化肝脏中的细胞外基质积累.
丁丁达尼布降低了NLRP3的表达,纤维化标记物,以及LX-2细胞中Src,EGFR,AKT和ERK1/2的酸化.
丁丁达尼布通过抑制Src酸化,下游信号和反应性氧物种的产生来抑制NLRP3炎症酶激活.

结论:

丁丁达尼布在临床前模型中显示出显著的抗纤维性作用.
丁丁达尼布有效抑制NLRP3炎症酶激活,这是肝纤维化的关键驱动因素.
丁丁达尼布具有作为治疗肝纤维化治疗的治疗剂的潜力.

关键词:

肝脏的星状细胞.肝脏纤维化肝脏纤维化在NLRP3炎症酶体中,NLRP3炎症尼丁达尼比尼是什么意思美国Src Src

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