CD4 T cell


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Noun1.CD4 T cell - T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells; helper T cells are infected and killed by the AIDS virus
T cell, T lymphocyte - a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells
References in periodicals archive ?
Incomplete CD4 T cell recovery in HIV-1 infection after 12 months of highly active antiretroviral therapy is associated with ongoing increased CD4 T cell activation and turnover.
CD4 T cell help is limiting and selective during the primary B cell response to influenza virus infection.
Comparison of mean CD4+ T cell counts between Ethiopian and Dutch populations showed considerably lower CD4 T cell counts in Ethiopian population (mean=775 cells/[micro]l) as compared to Dutch populations (mean= 993 cells/[micro]l) (58).
Characteristics, determinants, and clinical relevance of CD4 T cell recovery to <500 cellsl/[micro]L in HIV type 1-infected individuals receiving potent antiretroviral therapy.
In some cases, treatment is interrupted according to a scheduled time frame, while other studies have used CD4 T cell counts or viral load as indicators of when to stop or re-initiate therapy.
We also assessed the reproducibility of the Capcellia assay by comparison of CD4 T cell counts determined by two trained technicians (Fig.
The identification of the major HIV CD4 T cell reservoir will be instrumental in developing therapeutic strategies to selectively target HIV infected Tfh cells," says Prof.
The CD4 T cell count in peripheral blood is an important prognostic marker in the context of HIV infection.
Though viral load control in HIV-infected patients is an attainable goal with the current potent HAART regimen, the magnitude of CD4 restoration among patients remains variable and the length of time patients spend with low CD4 T cell counts is clearly associated with a higher morbidity," said Yves Levy MD, PhD, Scientific Director of the French National Agency for Research on AIDS and Viral Hepatitis (ANRS) Vaccine Program, Service d'Immunologie Clinique, Hypital Henri Mondor, Creteil, France and Inserm, Principle Investigator and lead author of the publication.
One of the first indications of this premise was the observation that viral loads increase and CD4 T cell counts fall in patients stopping therapy.
Multiple copies of this so-called CCR5 receptor sit on the surface of each CD4 T cell.
While the incidence of ARL in HIV infection has decreased overall since the advent of HAART, there has been no change within any patient grouping defined by CD4 T cell counts.