核苷酸结合寡聚化结构域样受体蛋白3炎性小体在肝脏疾病中的作用机制
DOI: 10.3969/j.issn.1001-5256.2022.04.041
Mechanism of action of nucleotide-binding oligomerization domain-like receptor protein 3 inflammasome in liver diseases
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摘要: 炎症小体在肝脏的天然免疫中发挥着重要作用,然而炎症小体的过度活化能够导致肝脏的炎症损伤,其中NLRP3炎症小体的损伤机制研究最为清楚。研究表明,多种肝脏疾病的发生可能均与炎症小体(尤其NLRP3炎症小体)的过度活化有关。本文将分别从炎症小体、NLRP3炎症小体的活化机制及其在不同肝脏疾病中的作用机制进行综述,以期从NLRP3炎症小体角度,为肝脏疾病的治疗靶点提供参考。Abstract: Inflammasomes play an important role in the innate immunity of the liver; however, the excessive activation of inflammasomes can lead to liver inflammation and injury. The mechanism of nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome-mediated liver injury has been extensively studied. Related studies have shown that the development of various liver diseases may be associated with the excessive activation of inflammasomes, especially NLRP3 inflammasome. This article reviews inflammasomes, the activation mechanism of NLRP3 inflammasome, and the role of NLRP3 inflammasome in different liver diseases, so as to provide a reference for the treatment targets of liver diseases from the perspective of NLRP3 inflammasome.
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Key words:
- NLRP3 Inflammasome /
- Liver Diseases /
- Immunity, Innate
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表 1 NLRP3炎症小体在肝脏疾病中的作用机制小结
Table 1. Summary of the mechanism of NLRP3 inflammasome in liver diseases
肝脏疾病 活化细胞 NLRP3炎症小体在脏病中的机制 参考文献 病毒性肝病(以HBV为代表) 单核巨噬细胞、肝实质细胞 HBX蛋白通过激活NLRP3炎症小体,促进氧化应激而导致肝细胞炎症损伤;HBeAg通过抑制NF-κB通路和ROS的产生,从而抑制NLRP3炎症小体免疫耐受 17-18 ALD 单核巨噬细胞 暴露于酒精的肝脏单核巨噬细胞通过激活NLRP3炎症小体而促进IL-1β的释放,进而募集更多的自然杀伤T淋巴细胞、中性粒细胞;此外,还能通过焦亡影响ALD 21-24 NAFLD M1型巨噬细胞 通过AMPK/NLRP3/HMGB-1信号通路而缓解IR; IL-18可通过调节内质网应激,减轻肝细胞坏死或凋亡 27-29,34-34 肝纤维化 肝星状细胞、M2型巨噬细胞 肝星状细胞和巨噬细胞通过激活NLRP3小体,释放大量的致炎因子(IL-1β),从而刺激肝星状细胞的活化和不断增殖 35-37 肝癌 纤维细胞、T淋巴细胞、单核巨噬细胞 IL-1、IL-18等炎症因子促进肿瘤转移基因和生长因子的表达,进而促进肿瘤细胞的黏附和转移;适量的IL-1、IL-18可能促进肿瘤细胞的凋亡进而抑制肿瘤 38-41 DILI 单核巨噬细胞、中性粒细胞 药物对细胞造成损伤而释放损伤相关分子模式(如ROS),从而促进单核巨噬细胞、中性粒细胞中NLRP3炎症小体的活化,IL-1β释放增多,从而引起肝脏的炎症损伤 43-44 -
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