B lymphocyte activation. The roles of receptor cross-linkage and BSF-1.
D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D006133:Growth Substances / Q000276:immunology* / Q000302:isolation & purification; D015847:Interleukin-4; D008213:Lymphocyte Activation; D008222:Lymphokines / Q000276:immunology* / Q000302:isolation & purification; D051379:Mice; D019948:Receptors, Interleukin-4; D011975:Receptors, Mitogen / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology
D006133:Growth Substances; D008222:Lymphokines; D019948:Receptors, Interleukin-4; D011975:Receptors, Mitogen; D015847:Interleukin-4