潘婷 胡陽黔
摘要:非酒精性脂肪肝病(NAFLD)是指除外酒精和其他明確的肝臟損害因素所致的、以彌漫性肝細胞大泡性脂肪變為主要特征的一組臨床病理綜合征,其疾病譜包括單純性脂肪肝(NAFL)、非酒精性脂肪性肝炎(NASH)、肝纖維化和肝硬化。NAFLD 不僅可以導致殘疾和死亡,還與代謝綜合征(MetS)、2 型糖尿病(T2DM)、動脈硬化性心血管疾病及結直腸腫瘤等疾病密切相關。近年來,研究發現免疫細胞及細胞因子在NAFLD的發病中發揮重要的作用,包括中性粒細胞、巨噬細胞、樹突狀細胞、自然殺傷(NK)細胞、NKT細胞、調節性T細胞(Treg)和Th17細胞等,其通過分泌IL-6、IL-21、IL-23、IL-17、TNF-α、TNF-β、CD33等炎癥因子作用于NAFLD,本文主要綜述Th17細胞在非酒精性脂肪肝病炎癥過程中的作用,以便為進一步研究非酒精性脂肪肝病及其治療提供新的思路。
關鍵詞:Th17細胞;炎癥因子;非酒精性脂肪肝病
中圖分類號:R575.5 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 文獻標識碼:A ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? DOI:10.3969/j.issn.1006-1959.2020.18.007
文章編號:1006-1959(2020)18-0022-04
The Role of Th17 Cells in the Inflammatory Process of Non-alcoholic Fatty Liver Disease
PAN Ting,HU Yang-qian
(Department of Gastroenterology,Dongfeng Hospital,Hubei Medical College,Shiyan 442000,Hubei,China)
Abstract:Non-alcoholic fatty liver disease (NAFLD) refers to a group of clinicopathological syndromes that are mainly characterized by diffuse hepatocyte bullous fat, which is caused by alcohol and other clear liver damage factors, and its disease spectrum includes simple fatty liver (NAFL), non-alcoholic steatohepatitis (NASH), liver fibrosis and cirrhosis. NAFLD can not only cause disability and death, but is also closely related to diseases such as metabolic syndrome (MetS), type 2 diabetes (T2DM), atherosclerotic cardiovascular disease, and colorectal tumors. In recent years, studies have found that immune cells and cytokines play an important role in the pathogenesis of NAFLD, including neutrophils, macrophages, dendritic cells, natural killer (NK) cells, NKT cells, regulatory T cells (Treg) and Th17 cells, etc., It acts on NAFLD by secreting IL-6, IL-21, IL-23, IL-17, TNF-α, TNF-β, CD33 and other inflammatory factors. This article mainly reviews the role of Th17 cells in the inflammatory process of non-alcoholic fatty liver disease. In order to provide new ideas for further research on non-alcoholic fatty liver disease and its treatment.
Key words:Th17 cells;Inflammatory factors;Non-alcoholic fatty liver disease
非酒精性脂肪肝病(NAFLD)是指肝臟組織中脂肪的過度堆積,排除繼發性肝脂肪堆積障礙等其他原因,包括大量飲酒、遺傳性疾病和脂肪性藥物肝病等。NAFLD具有廣泛的肝臟疾病譜,從單純性脂肪變性到脂肪性肝炎,可發展為肝纖維化形成和肝硬化。在NAFLD疾病譜中,非酒精性脂肪性肝炎(NASH)更為嚴重,在組織學上表現為肝脂肪變性、小葉炎癥和細胞損傷(即肝細胞膨脹)[1]。 NAFLD是一個與代謝綜合征(MetS)、2 型糖尿病(T2DM)、高血壓、冠心病及消化道腫瘤等的密切相關的疾病,嚴重時其還可以導致死亡[1]。非酒精性脂肪肝病的發病機制有多種學說,用經典的“二次打擊”學說解釋了早期NAFLD和NASH發病[2]。……