γδ T cells expressing gamma and delta T cell receptors (Tcrg-C1 and Trdv4) in addition to TNFa and IL-17A were a minor population of T cells yet accounted for a significant, 6-fold increase in abundance in sensitive tumors (Resistant: 0.1%; Sensitive 0.6% of total tumor residing cells). This evidence concerns the gene IL17A and neoplasm.