IL17A and neoplasm: The observation was confirmed by the evidence that cohabiting azoxymethane (AOM) and ApcMinΔ716/+ GF mice with enterotoxigenic B. fragilis and E. coli led to enhancement in IL-17 levels produced by both γδT17 and Th17 immune cells, therefore, increasing the tumor susceptibility (Dejea et al., 2018).