T cells produce an antigen-binding factor with in vivo activity analogous to IgE antibody

Autor: R W Rosenstein, Wlodzimierz Ptak, Philip W. Askenase
Jazyk: angličtina
Rok vydání: 1983
Předmět:
Zdroj: The Journal of Experimental Medicine
ISSN: 1540-9538
0022-1007
Popis: T cell-dependent activation of resident tissue mast cells is required for the elicitation of delayed-type hypersensitivity skin reactions in mice. A T cell-derived antigen-binding factor that transfers the ability to elicit an immediate hypersensitivity-like skin reaction is described and compared with a hybridoma IgE antibody. Both the T cell factor and IgE mediate reactions with increased vascular permeability and both are mast cell dependent, as they are inactive in two different types of mast cell deficient mice (W/Wv and Sl/Sld). The T cell factor was distinguished from IgE by affinity chromatography using specific anti-IgE and anti-factor antibodies and by a shorter duration of passive sensitization. The T cell factor is a suitable candidate for participation in the mechanism by which T cells activate mast cells in delayed-type hypersensitivity.
Databáze: OpenAIRE