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Elevated expression of LAG-3, but not PD-1, is associated with impaired iNKT cytokine production during chronic HIV-1 infection and treatment
(University of Nairobi, 2015)
Background:
LAG-3 is a potent negative regulator of the immune response but its impact in HIV infection in
poorly understood. Unlike exhaustion markers such as PD-1, Tim-3, 2B4 and CD160, LAG-3 is poorly expressed on
bulk ...
Enrichment of LAG-3, but not PD-1, on Double Negative T Cells at the Female Genital Tract
(University of Nairobi, 2014-12)
Problem
The expression of inhibitory markers such as LAG-3 and PD-1 on T lymphocytes regulates immune function. Their expression at the genital mucosa is poorly understood, but regulation of immune activation at the ...
For protection from HIV-1 infection, more might not be better: a systematic analysis of HIV Gag epitopes of two alleles associated with different outcomes of HIV-1 infection
(Univerisyt of Nairobi, 2011)
A subset of women in the Pumwani Sexworker cohort, established in 1985 in Nairobi, Kenya, remains uninfected despite repeated high-risk exposure(HESN) through active sex work. This HESN phenotype is associated with several ...
The role of G Protein Gene GNB3 C825T Polymorphism in HIV-1 acquisition, progression and immune activation
(2012-01-03)
Abstract
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 ...
HIV viral set point and host immune control in individuals with HIV-specific CD8R T-cell responses prior to HIV acquisition
(2010)
OBJECTIVE:
Vaccine-induced CD8(+) T-cell responses in primates have been associated with a reduced simian immunodeficiency virus plasma viral load and enhanced T-cell responses, but cellular vaccines have shown limited ...
Late seroconversion in HIV-resistant Nairobi prostitutes despite pre-existing HIV-specific CD8+ responses
(University of Nairobi, 2001-02-01)
Resistance to HIV infection in a small group of Kenyan sex workers is associated with CD8+-lymphocyte responses to HIV cytotoxic T-lymphocyte (CTL) epitopes. Eleven prostitutes meeting criteria for HIV resistance seroconverted ...
High level of plasma TILRR protein is associated with faster HIV seroconversion
(University of Nairobi, 2022-04)
Background: TILRR (Toll-like Interleukin-1 Receptor Regulator) is a modulator of many genes in NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) signaling. It promotes the production of inflammatory ...
High Level of Pre-Treatment HIV-1 Drug Resistance and Its Association with HLA Class I-Mediated Restriction in the Pumwani Sex Worker Cohort
(University of Nairobi, 2022-01)
Background: We analyzed the prevalence of pre-antiretroviral therapy (ART) drug resistance mutations (DRMs) in a Kenyan population. We also examined whether host HLA class I genes influence the development of pre-ART ...