To further confirm whether potential neoantigen-specific T cells successfully infiltrate the tumor tissue, a fluorescently labelled tetramer for the highly immunogenic neoantigen peptide Mapkbp1 199–206 (RHIKFCYL): H-2 Kb (Mapkbp1) was generated to detect T cells expressing Mapkbp1-specific T cell receptors (TCRs) in the peripheral blood mononuclear cells (PBMCs) and TILs (Fig. 4M–P). This evidence concerns the gene MAPKBP1 and neoplasm.