however , induction of the macrophage phenotype by pretreatment of ml-3 cells with the phorbol ester , pma , followed by hcmv challenge , resulted in a greatly extended period of expression of il-1 beta , tnf-alpha , mad-9 , and csf-1 but not mad-6 and mad-2 .
C0031586
phorbol ester
C0039654
pma