immune supernatants had two- to 10-fold higher levels of macrophage colony-stimulating factor , as determined by radioimmunoassay , and higher levels of interleukin-3 and possibly granulocyte-macrophage colony-stimulating factor , as determined by factor-dependent cell line growth , than did nonimmune supernatants .
C0079460
granulocyte-macrophage colony-stimulating factor
C0018284
factor