Journal article

In vitro antibody response to influenza virus. II. Specificity of helper T cell recognizing hemagglutinin.

EM Anders, JM Katz, DC Jackson, DO White

The Journal of Immunology | Published : 1981

Abstract

Intraperitoneal immunization of mice with liver influenza virus was shown to induce helper T (TH) cells with specificity for the hemagglutinin (HA). The interaction of virus-primed TH cells with purified HA was studied independently of B cell reactivity to the same antigen by using the generation of nonspecific help as an index of activation of HA-specific TH cells. TH cells from mice primed with any of the H3 viruses A/Aichi/68 X A/Bel/42 (H3N1), A/Memphis/102/72 X A/Bel/42 (H3N1) or A/Port Chalmers/73 (H3N2) were strongly cross-reactive towards HA of other strains within the H3 subtype. In addition, several examples of cross-reactivity towards HA of a different subtype were observed, usual..

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