CD8A and myeloid leukemia: Prior investigators have identified a CD5dim/CD3variable/CD8+/TCRαβ/γδ- putative canine NK population which is responsive to human cytokine stimulation as well as co-culture with an immortalized mouse embryonic feeder cell line (EL08-1D2) and a lethally irradiated immortalized human myelogenous leukemia line expressing co-stimulatory transgenes.