Fas/FasL and Complement Activation are Associated with Chronic Active Epstein-Barr Virus Hepatitis  

作　　者：Jing Lin Miao-Fang Su Jiao-Long Zheng Lei Gu Hai-Cong Wu Xia Wu Hai-Yan Lin Zhi-Xian Wu Dong-Liang Li 

机构地区：[1]Department of Hepatobiliary Medicine,Fuzong Clinical Medical College of Fujian Medical University,900TH Hospital of the Joint Logistic Support Force,PLA,Fuzhou,Fujian,China [2]Department of Respiratory and Critical Care Medicine,The First Affiliated Hospital of Chongqing Medical University,Chongqing,China

出　　处：《Journal of Clinical and Translational Hepatology》2023年第3期540-549,共10页临床与转化肝病杂志（英文版）

基　　金：the Startup Fund for scientific research, Fujian Medical University (Grant Number: 2019QH 1285);the Natural Science Foundation of Fujian Province of China (Grant Number: 2021J011263).

摘　　要：Background and Aims:Chronic active Epstein-Barr virus hepatitis(CAEBVH)is a rare and highly lethal disease char-acterized by hepatitis and hepatomegaly.This study aimed to investigate the clinicopathological features and pathogenic mechanisms of CAEBVH.Methods:Ten patients with con-firmed Epstein-Barr virus hepatitis infection were enrolled.The clinicopathological characteristics of these patients were summarized and analyzed.Flow cytometry was utilized to detect peripheral blood immune cell phenotypes and whole exome sequencing was used to explore pathogenic genetic mechanisms.Lastly,immunohistochemical staining was em-ployed to verify pathogenic mechanisms.Results:Clinical features observed in all Epstein-Barr virus hepatitis patients included fever(7/10),splenomegaly(10/10),hepatomeg-aly(9/10),abnormal liver function(8/10),and CD8+T cell lymphopenia(6/7).Hematoxylin and eosin staining revealed lymphocytic infiltration in the liver.Positive Epstein-Barr vi-rus-encoded small RNA in-situ hybridization(EBER-ISH)of lymphocytes of liver tissues was noted.Whole exome se-quencing indicated that cytotoxic T lymphocytes and the complement system were involved.The expression of CD8,Fas,FasL,and Caspase-8 expression as well as apoptotic markers was enhanced in the Epstein-Barr virus hepatitis group relative to the controls(p<0.05).Lastly,Complement 1q and complement 3d expression,were higher in CAEBVH patients relative to controls(p<0.05).Conclusions:CAE-BVH patients developed fever,hepatosplenomegaly,and lymphadenopathy.Histopathological changes were a diffuse lymphocytic sinusoidal infiltrate with EBER-ISH positivity.Fas/FasL and complement activation were involved in CAE-BVH patients.

关 键 词：Chronic active EB virus hepatitis FAS/FASL COMPLEMENT 

分 类 号：R512.6[医药卫生—内科学]