Browsing by Subject "CD4-Positive T-Lymphocytes"
Now showing items 1-20 of 20
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A genetic memory initiates the epigenetic loop necessary to preserve centromere position.
(The EMBO journal, 2020-10)Centromeres are built on repetitive DNA sequences (CenDNA) and a specific chromatin enriched with the histone H3 variant CENP-A, the epigenetic mark that identifies centromere position. Here, we interrogate the importance ... -
A pilot study of IL-2Rα blockade during lymphopenia depletes regulatory T-cells and correlates with enhanced immunity in patients with glioblastoma.
(PLoS One, 2012)BACKGROUND: Preclinical studies in mice have demonstrated that the prophylactic depletion of immunosuppressive regulatory T-cells (T(Regs)) through targeting the high affinity interleukin-2 (IL-2) receptor (IL-2Rα/CD25) ... -
Anti-phospholipid human monoclonal antibodies inhibit CCR5-tropic HIV-1 and induce beta-chemokines.
(J Exp Med, 2010-04-12)Traditional antibody-mediated neutralization of HIV-1 infection is thought to result from the binding of antibodies to virions, thus preventing virus entry. However, antibodies that broadly neutralize HIV-1 are rare and ... -
Beta-arrestin-2 regulates the development of allergic asthma.
(J Clin Invest, 2003-08)Asthma is a chronic inflammatory disorder of the airways that is coordinated by Th2 cells in both human asthmatics and animal models of allergic asthma. Migration of Th2 cells to the lung is key to their inflammatory function ... -
Cocaine dependence does not contribute substantially to white matter abnormalities in HIV infection.
(Journal of neurovirology, 2017-06)This study investigated the association of HIV infection and cocaine dependence with cerebral white matter integrity using diffusion tensor imaging (DTI). One hundred thirty-five participants stratified by HIV and cocaine ... -
Costimulation blockade alters germinal center responses and prevents antibody-mediated rejection.
(Am J Transplant, 2014-01)De novo donor-specific antibody (DSA) after organ transplantation promotes antibody-mediated rejection (AMR) and causes late graft loss. Previously, we demonstrated that depletion using anti-CD3 immunotoxin combined with ... -
Genome-wide mRNA expression correlates of viral control in CD4+ T-cells from HIV-1-infected individuals.
(PLoS Pathog, 2010-02-26)There is great interindividual variability in HIV-1 viral setpoint after seroconversion, some of which is known to be due to genetic differences among infected individuals. Here, our focus is on determining, genome-wide, ... -
HLA class II-Restricted CD8+ T cells in HIV-1 Virus Controllers.
(Scientific reports, 2019-07-15)A paradigm shifting study demonstrated that induction of MHC class E and II-restricted CD8+ T cells was associated with the clearance of SIV infection in rhesus macaques. Another recent study highlighted the presence of ... -
Human Non-neutralizing HIV-1 Envelope Monoclonal Antibodies Limit the Number of Founder Viruses during SHIV Mucosal Infection in Rhesus Macaques.
(PLoS Pathog, 2015-08)HIV-1 mucosal transmission begins with virus or virus-infected cells moving through mucus across mucosal epithelium to infect CD4+ T cells. Although broadly neutralizing antibodies (bnAbs) are the type of HIV-1 antibodies ... -
Impact of simian immunodeficiency virus infection on chimpanzee population dynamics.
(PLoS Pathog, 2010-09-23)Like human immunodeficiency virus type 1 (HIV-1), simian immunodeficiency virus of chimpanzees (SIVcpz) can cause CD4+ T cell loss and premature death. Here, we used molecular surveillance tools and mathematical modeling ... -
JunB promotes Th17 cell identity and restrains alternative CD4+ T-cell programs during inflammation.
(Nature communications, 2017-08-21)T helper 17 (Th17) cell plasticity contributes to both immunity and autoimmunity; however, the factors that control lineage flexibility are mostly unknown. Here we show the activator protein-1 (AP-1) factor JunB is an essential ... -
Metabolic programming and PDHK1 control CD4+ T cell subsets and inflammation.
(J Clin Invest, 2015-01)Activation of CD4+ T cells results in rapid proliferation and differentiation into effector and regulatory subsets. CD4+ effector T cell (Teff) (Th1 and Th17) and Treg subsets are metabolically distinct, yet the specific ... -
Multivalent benzoboroxole functionalized polymers as gp120 glycan targeted microbicide entry inhibitors.
(Mol Pharm, 2010-02-01)Microbicides are women-controlled prophylactics for sexually transmitted infections. The most important class of microbicides target HIV-1 and contain antiviral agents formulated for topical vaginal delivery. Identification ... -
Phenotypic properties of transmitted founder HIV-1.
(Proc Natl Acad Sci U S A, 2013-04-23)Defining the virus-host interactions responsible for HIV-1 transmission, including the phenotypic requirements of viruses capable of establishing de novo infections, could be important for AIDS vaccine development. Previous ... -
SIV-induced terminally differentiated adaptive NK cells in lymph nodes associated with enhanced MHC-E restricted activity.
(Nature communications, 2021-02-24)Natural killer (NK) cells play a critical understudied role during HIV infection in tissues. In a natural host of SIV, the African green monkey (AGM), NK cells mediate a strong control of SIVagm infection in secondary lymphoid ... -
Tetanus toxoid and CCL3 improve dendritic cell vaccines in mice and glioblastoma patients.
(Nature, 2015-03-19)After stimulation, dendritic cells (DCs) mature and migrate to draining lymph nodes to induce immune responses. As such, autologous DCs generated ex vivo have been pulsed with tumour antigens and injected back into patients ... -
The Immunology Quality Assessment Proficiency Testing Program for CD3⁺4⁺ and CD3⁺8⁺ lymphocyte subsets: a ten year review via longitudinal mixed effects modeling.
(Journal of Immunological Methods, 2014-07)Since 1999, the National Institute of Allergy and Infectious Diseases Division of AIDS (NIAID DAIDS) has funded the Immunology Quality Assessment (IQA) Program with the goal of assessing proficiency in basic lymphocyte subset ... -
VERITAS?: A time for VERIQAS™ and a new approach to training, education, and the quality assessment of CD4+ T lymphocyte counting (I).
(Cytometry. Part B, Clinical cytometry, 2012-03)<h4>Background</h4>The aim of clinical laboratories is to produce accurate and reproducible results to enable effective and reliable clinical practice and patient management. The standard approach is to use both internal ...
