CXCR2P1 and neoplasm: Results show that the BP, CC and MF of CXCR2P1 are all enriched in peptide antigen binding and the MHC-II protein complex, which indicate that CXCR2P1 might increase the infiltration of immune cells in tumor issue by enhancing the antigen presentation in tumor immune microenvironment by MHC II protein complex.