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Epitope Mapping of HIV-Specific CD8+ T cells in a Cohort Dominated by Clade A1 Infection
(2009)
Background
CD8+ T cell responses are often detected at large magnitudes in HIV-infected subjects, and eliciting these responses is the central aim of many HIV-1 vaccine strategies. Population differences in CD8+ T cell ...
Clade specific evolution mediated by HLA-B*57/5801 in human immunodeficiency virus type 1 Clade A1 p24
(2009)
HLA-B*57-mediated selection pressure leads to a typical escape pathway in human immunodeficiency virus
type 1 (HIV-1) CD8 epitopes such as TW10. Whether this T242N pathway is shared by all clades remains
unknown. We ...
Preventing HIV-1 Infection, More Epitope Is Not Better: Analysis of Gag Epitope of 2 HLA Alleles Associated with Different Outcome of HIV Infection
(2012)
Background: Current HIV vaccine candidates have been based on
the conventional views of viral infection and attempt to induce
broad T cell responses to HIV-1. Until now, the candidate vaccines
based on such approach ...
A Genetic Polymorphism of FREM1 Is Associated with Resistance against HIV Infection in the Pumwani Sex Worker Cohort
(2012)
A subgroup of women enrolled in the Pumwani sex worker cohort remain seronegative and PCR negative for human immunodeficiency virus type 1 despite repeated exposure through high-risk sex work. Studies have shown that ...
Naturally occurring protease inhibitor resistance mutations and their frequencies in HIV proviral sequences of drug-naïve sex workers in Nairobi, Kenya
(University of Nairobi, 2014-01-07)
Sub-Saharan Africa accounts for 69% of the people living with HIV globally. An estimated 1,600,000 Kenyans are living with HIV-1. Antiretroviral therapy (ART) has saved 9 million life-years in Sub-Saharan Africa. However, ...
HIV-1 Clade D Is Associated with Increased Rates of CD4 Decline in a Kenyan Cohort
(University of Nairobi, 2012)
HIV-1 is grouped phylogenetically into clades, which may impact rates of HIV-1 disease progression. Clade D infection in particular has been shown to be more pathogenic. Here we confirm in a Nairobi-based prospective female ...
The role of G protein gene GNB3 C825T Polymorphism in HIV-1 acquisition, progression and immune activation
(2012)
Background
The GNB3 C825T polymorphism is associated with increased G protein-mediated signal transduction, SDF-1α-mediated lymphocyte chemotaxis, accelerated HIV-1 progression, and altered responses to antiretroviral ...
Human Immunodeficiency Virus (HIV) Type 1 Proviral Hypermutation Correlates with CD4 Count in HIV-Infected Women from Kenya[down-pointing small open triangle]
(2008)
APOBEC3G is an important innate immune molecule that causes human immunodeficiency virus type 1 (HIV-1) hypermutation, which can result in detrimental viral genome mutations. The Vif protein of wild-type HIV-1 counteracts ...
Epitope cross-reactivity frequently differs between central and effector memory HIV-specific CD8+ t cells1
(Univerisyt of Nairobi, 2007-03)
HIV diversity may limit the breadth of vaccine coverage due to epitope sequence differences between strains. Although amino acid substitutions within CD8+ T cell HIV epitopes can result in complete or partial abrogation ...
A common HLA-DP genotype is associated with resistance to hiv-1 infection in Kenyan sex workers
(Univerisyt of Nairobi, 2008-10)
HLA-DP antigens present peptides to CD4+ T cells and play an important role in parasitic infections and autoimmune diseases, yet their influence on HIV-1 susceptibility has not been well studied. Here, we report several ...