Escape Mutations Alter Proteasome Processing of Major Histocompatibility Complex Class I-Restricted Epitopes in Persistent Hepatitis C Virus Infection

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Escape mutations alter proteasome processing of major histocompatibility complex class I-restricted epitopes in persistent hepatitis C virus infection.

Mutations in hepatitis C virus (HCV) genomes facilitate escape from virus-specific CD8+ T lymphocytes in persistently infected chimpanzees. Our previous studies demonstrated that many of the amino acid substitutions in HCV epitopes prevented T-cell receptor recognition or binding to class I major histocompatibility complex molecules. Here we report that mutations within HCV epitopes also cause ...

متن کامل

Identification of Naturally Processed Hepatitis C Virus-Derived Major Histocompatibility Complex Class I Ligands

Fine mapping of human cytotoxic T lymphocyte (CTL) responses against hepatitis C virus (HCV) is based on external loading of target cells with synthetic peptides which are either derived from prediction algorithms or from overlapping peptide libraries. These strategies do not address putative host and viral mechanisms which may alter processing as well as presentation of CTL epitopes. Therefore...

متن کامل

Expression of hepatitis C virus proteins does not interfere with major histocompatibility complex class I processing and presentation in vitro.

Hepatitis C virus (HCV) infection takes a chronic course in the majority of patients. The mechanisms underlying the evasion of the host immune response and viral persistence are poorly understood. In this context, we investigated interactions of HCV proteins with major histocompatibility complex (MHC) class I processing and presentation pathways using cell lines that allow the tetracycline-regu...

متن کامل

Immunodominance of major histocompatibility complex class I-restricted influenza virus epitopes can be influenced by the T-cell receptor repertoire.

We have used T-cell receptor beta-chain transgenic mice to determine the effects of a limited T-cell receptor repertoire on major histocompatibility complex class I-restricted epitope selection during the course of an influenza virus infection. Analysis of T-cell hybridomas generated from wild-type and transgenic mice demonstrated that the viral epitope recognized depended on the available T-ce...

متن کامل

Frequency of Major Histocompatibility Antigens Class I in Mazandaran Province

 Background and purpose: Major histocompatibility antigens are the most polymorphic components of the immune system. The purpose of this study was to determine the frequency of human leukocyte antigens (HLA) in a population in Mazandaran province, Iran. Materials and methods: In a cross sectional study, peripheral blood samples were obtained from 550 people in Immunogenetics Research Center af...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Virology

سال: 2005

ISSN: 0022-538X,1098-5514

DOI: 10.1128/jvi.79.8.4870-4876.2005