after msv inoculation we demonstrate that a ) ly123+ cells contain precursors of ctl , b ) direct cytolysis is mainly mediated by ly23 cells , 3 ) cytolytic memory is divisible into `` '' early '' '' memory , carried by ly23 cells , and `` '' late '' '' memory , which reverts to an ly123 precursor population , and d ) ly1 cells are required to induce anti-msv antibody formation .
C1536403
cytolytic
C0007634
ly1 c