Effective downregulation of HLA-A* 2 and HLA-B* 57 by primary human immunodeficiency virus type 1 isolates cultured from elite suppressors
E Nou, Y Zhou, DD Nou, JN Blankson - Journal of virology, 2009 - journals.asm.org
E Nou, Y Zhou, DD Nou, JN Blankson
Journal of virology, 2009•journals.asm.orgElite controllers or suppressors (ES) are human immunodeficiency virus type 1 (HIV-1)-
infected patients who control viral replication to< 50 copies/ml without antiretroviral therapy.
Downregulation of HLA class I molecules is an important mechanism used by HIV-1 to
evade the immune system. In this study, we showed that primary isolates from ES are as
effective as isolates obtained from patients with progressive HIV-1 disease at
downregulating HLA-A* 2 and HLA-B* 57 molecules on primary CD4+ T cells. Thus, a …
infected patients who control viral replication to< 50 copies/ml without antiretroviral therapy.
Downregulation of HLA class I molecules is an important mechanism used by HIV-1 to
evade the immune system. In this study, we showed that primary isolates from ES are as
effective as isolates obtained from patients with progressive HIV-1 disease at
downregulating HLA-A* 2 and HLA-B* 57 molecules on primary CD4+ T cells. Thus, a …
Abstract
Elite controllers or suppressors (ES) are human immunodeficiency virus type 1 (HIV-1)-infected patients who control viral replication to <50 copies/ml without antiretroviral therapy. Downregulation of HLA class I molecules is an important mechanism used by HIV-1 to evade the immune system. In this study, we showed that primary isolates from ES are as effective as isolates obtained from patients with progressive HIV-1 disease at downregulating HLA-A*2 and HLA-B*57 molecules on primary CD4+ T cells. Thus, a diminished ability of viral isolates from ES to evade HIV-specific immune responses probably does not contribute to the control of viral replication in these patients.
