This result leads to prediction that cPLA2 deficiency will have less impact on eicosanoid production by MacA cells than by MacB or neutrophils.To confirm the potential for eicosanoid production by MacA, MacB and neutrophil populations, cells were recovered from tumor-bearing mice by flow cytometry and stimulated with calcium ionophore A23187. This evidence concerns the gene PLA2G4A and neoplasm.