title: T helper cells, IL-2 and the generation of cytotoxic T-cell responses.
abstract: CD8 T-cell immunity is thought to require helper activity derived from CD4 T cells. Nevertheless, under some circumstances, effective CD8-dependent T-cell responses occur in vivo without CD4 T-cell help. Several recent papers help to explain this paradox and lead to a refined view concerning the role of T helper cells and interleukin-2 receptor signaling in the production of cytotoxic T lymphocytes.
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Malek
mesh_terms: D000818:Animals; D007376:Interleukin-2 / Q000276:immunology*; D051379:Mice; D015375:Receptors, Interleukin-2 / Q000276:immunology; D015398:Signal Transduction; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*
chemical_list: D007376:Interleukin-2; D015375:Receptors, Interleukin-2