the purpose of the present paper is to determine whether antigen-stimulated b lymphocytes could produce blastogenic factor ( bf ) in the system of guinea pigs ( strain 2 ) sensitized with keyhole limpet hemocyanin ( klh ) or ovalbumin ( ova ) , known as thymus-dependent antigen , and , further , whether macrophages ( m phi ) are required for antigen activation of b cells to produce this lymphokine .
C0024264
lymphocytes
C0024297
lymphokine