es contains high levels of granulocyte-macrophage colony-stimulating factor ( gm-csf ) , a regulator known to stimulate differentiation of these leukemic cells , but an antiserum which neutralized greater than 85 % of the gm-csf in es did not suppress the differentiation-inducing activity of es on wehi-3b cells .
C0079460
gm-csf
C0007589
differentiation