Type 1 interferon contributes to CD 4 + T cell depletion 1 in HIV - 1 induced human thymus

نویسندگان

  • Vijay Sivaraman
  • Liguo Zhang
  • Lishan Su
چکیده

1 Department of Microbiology and Immunology, 2 the Lineberger Comprehensive Cancer 9 Center, School of Medicine, The University of North Carolina, Chapel Hill, NC 2759910 729, 3 Key Lab for Infection and Immunity and National Laboratory of 11 Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Da Tun 12 Road, Chaoyang District, Beijing 100101, China 13 14 *Corresponding author: Lishan Su, Lineberger Comprehensive Cancer Center, CB#7295, 15 Chapel Hill, NC 27599, [email protected], 16 Phone 919 966-6654, Fax 919 966-8212 17 18 Abstract words: 100 19 Text words: 1,115 20 Copyright © 2011, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved. J. Virol. doi:10.1128/JVI.00457-11 JVI Accepts, published online ahead of print on 22 June 2011

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Type I interferon contributes to CD4+ T cell depletion induced by infection with HIV-1 in the human thymus.

Persistent induction of type 1 interferon (IFN) is associated with human immunodeficiency virus type 1 (HIV-1) infection. We report here that the pathogenic HIV strain R3A (HIV-R3A) induced high levels of type 1 IFN, while the nonpathogenic HIV-R3B showed no significant induction in human fetal thymus organ culture (HFTOC). We found that IFN contributed to the depletion of human T cells by HIV-...

متن کامل

Type I interferons suppress viral replication but contribute to T cell depletion and dysfunction during chronic HIV-1 infection.

The direct link between sustained type I interferon (IFN-I) signaling and HIV-1-induced immunopathogenesis during chronic infection remains unclear. Here we report studies using a monoclonal antibody to block IFN-α/β receptor 1 (IFNAR1) signaling during persistent HIV-1 infection in humanized mice (hu-mice). We discovered that, during chronic HIV-1 infection, IFNAR blockade increased viral repl...

متن کامل

Porcine thymic grafts protect human thymocytes from HIV-1-induced destruction.

Human immunodeficiency virus type 1 (HIV-1) infection depletes thymocytes and destroys thymic structure. Functional, tolerant human T cells develop in vivo in immunodeficient mice receiving porcine thymus and human fetal liver fragments under the kidney capsule. In this model, we evaluated the potential of porcine thymus to protect human thymocytes from the effects of HIV-1. Compared with that ...

متن کامل

Plasmacytoid Dendritic Cells Suppress HIV-1 Replication but Contribute to HIV-1 Induced Immunopathogenesis in Humanized Mice

The role of plasmacytoid dendritic cells (pDC) in human immunodeficiency virus type 1 (HIV-1) infection and pathogenesis remains unclear. HIV-1 infection in the humanized mouse model leads to persistent HIV-1 infection and immunopathogenesis, including type I interferons (IFN-I) induction, immune-activation and depletion of human leukocytes, including CD4 T cells. We developed a monoclonal anti...

متن کامل

Type I Interferon Upregulates Bak and Contributes to T Cell Loss during Human Immunodeficiency Virus (HIV) Infection

The role of Type I interferon (IFN) during pathogenic HIV and SIV infections remains unclear, with conflicting observations suggesting protective versus immunopathological effects. We therefore examined the effect of IFNα/β on T cell death and viremia in HIV infection. Ex vivo analysis of eight pro- and anti-apoptotic molecules in chronic HIV-1 infection revealed that pro-apoptotic Bak was incr...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011