Induction of HIV-1 Nef-specific cytotoxic T lymphocytes by Nef-expressing DNA vaccine
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چکیده
منابع مشابه
Cytotoxic T Lymphocyte Epitopes of HIV-1 Nef
Although a pivotal role of proteasomes in the proteolytic generation of epitopes for major histocompatibility complex (MHC) class I presentation is undisputed, their precise function is currently the subject of an active debate: do proteasomes generate many epitopes in definitive form, or do they merely generate the COOH termini, whereas the definitive NH(2) termini are cleaved by aminopeptidas...
متن کاملHuman immune response to HIV-1 Nef. II. Induction of HIV-1/HIV-2 Nef cross-reactive cytotoxic T lymphocytes in peripheral blood lymphocytes of non-infected healthy individuals.
HIV-specific CD8+ cytotoxic T lymphocytes (CTL) are thought to have a beneficial role in HIV infection. In a previous report we have shown that HIV-1 Nef-specific CTL can be readily induced in peripheral blood lymphocytes of seronegative healthy young adults by in vitro stimulation with autologous Epstein-Barr virus-transformed B lymphoblastoid cell lines transfected with the HIV-1 nef gene. He...
متن کاملIncreased Breadth and Depth of Cytotoxic T Lymphocytes Responses against HIV-1-B Nef by Inclusion of Epitope Variant Sequences
Different vaccine approaches cope with HIV-1 diversity, ranging from centralized(1-4) to variability-encompassing(5-7) antigens. For all these strategies, a concern remains: how does HIV-1 diversity impact epitope recognition by the immune system? We studied the relationship between HIV-1 diversity and CD8(+) T Lymphocytes (CTL) targeting of HIV-1 subtype B Nef using 944 peptides (10-mers overl...
متن کاملEpitope targeting and viral inoculum are determinants of Nef-mediated immune evasion of HIV-1 from cytotoxic T lymphocytes.
The impact of HIV-1 Nef-mediated HLA-I down-regulation on CD8(+) cytotoxic T lymphocytes (CTLs) varies by epitope, but the determining factors have not been elucidated. In the present study, we investigated the impact of Nef on the antiviral efficiency of HIV-1-specific CTLs targeting 17 different epitopes to define properties that determine susceptibility to Nef. The impact of Nef was not corr...
متن کاملHIV-1 Infection of T Lymphocytes and Macrophages Affects Their Migration via Nef
The human immunodeficiency virus (HIV-1) disseminates in the body and is found in several organs and tissues. Although HIV-1 mainly targets both CD4(+) T lymphocytes and macrophages, it has contrasting effects between these cell populations. HIV-1 infection namely reduces the viability of CD4(+) T cells, whereas infected macrophages are long-lived. In addition, the migration of T cells is reduc...
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ژورنال
عنوان ژورنال: American Journal of Hematology
سال: 1996
ISSN: 0361-8609,1096-8652
DOI: 10.1002/(sici)1096-8652(199610)53:2<116::aid-ajh9>3.0.co;2-2