Factors associated with the response to interferon-based antiviral therapies for chronic hepatitis C

作     者：Hirayuki Enomoto Shuhei Nishiguchi 

作者机构：Division of Hepato- biliary and Pancreatic Disease Department of Internal MedicineHyogo College of Medicine 

出 版 物：《World Journal of Hepatology》 (世界肝病学杂志（英文版）（电子版）)

年 卷 期：2015年第7卷第26期

页      面：2681-2687页

学科分类：1004[医学-公共卫生与预防医学(可授医学、理学学位)] 1002[医学-临床医学] 100401[医学-流行病与卫生统计学] 10[医学] 

主　　题：Anti-interferon-α neutralizing antibody Interferon 

摘      要：Hepatitis C virus(HCV) infection is a major health concern worldwide. Interferon-α(IFN-α) therapy has been the main antiviral treatment for more than 20 years. Because of its established antitumor effects, IFNbased treatments for chronic HCV infection still have a clinical impact, particularly for patients with high risk conditions of developing hepatocellular carcinoma, such as older age and advanced liver fibrosis. As a result of exhaustive research, several viral factors, including NS5 A amino acid mutations such as the IFN sensitivitydetermining region and the IFN/ribavirin resistancedetermining region, and mutations of amino acids in the core protein region(core 70 and 91) were shown to be associated with the response to IFN-α treatment. In addition, among the host factors related to the response to IFN-α treatment, polymorphisms of the interleukin-28 B gene were identified to be the most important factor. In this article, we review the factors associated with the efficacy of IFN-α treatment for chronic HCV infection. In addition, our recent findings regarding the possible involvement of anti-IFN-α neutralizing antibodies in a non-response to pegylated-IFN-α treatment are also described.