CD4 T lymphocytes form a subgroup of T lymphocytes that is responsible for cell-mediated immune responses.
Synonyms
T helper cell
CD4 cells
Detailed description
T lymphocytes carrying the surface antigen CD4 are called T helper cells. After activation, they release substances that are either involved in cell-mediated immunity or that stimulate B cell immune responses. HIV infects mainly this T lymphocyte subgroup.
An international research team has identified a novel HIV antibody that targets the virus at a particularly vulnerable site and overcomes previous limitations of known antibodies. The study, led by
Professor Oliver T. Keppler, Chair of Virology at the Max von Pettenkofer Institute at Ludwig Maximilian University (LMU) in Munich, passed away on January 27, 2026 following a serious illness. As an
A new study has shown for the first time that an experimental vaccine against Middle East Respiratory Syndrome (MERS) induces a stable and functional immune response in humans that persists for at
