the subpopulations of murine macrophages ( m phi ) that can be activated by endotoxin ( lps ) and lymphokines to produce lymphocyte-activating factor , or interleukin 1 ( il-1 ) , and to express cytostatic and cytolytic activities against tumor cells were characterized in 3 cell populations with immature and mature m phi in various proportions , namely , normal peritoneal cells , glycogen-induced peritoneal cells , and cultured bone marrow m phi .
C0014264
endotoxin
C0023810
lps