CD147 deficiency increases the intratumoral abundance and effector function of CD8+ TILs after adoptive transfer. A The counts of CD45.1+ CD147+/+ CD8+ or CD45.2+ CD147−/− CD8+ T cells per million total intratumoral cells in recipient RAG mice were calculated with flow cytometry (n = 3). B, C The frequencies of perforin+, granzyme B+, IFN-γ+, TNF-α+, and PD-1+ cells in the total CD45.1+CD147+/+ CD8+ or CD45.2+ CD147−/− CD8+ TIL population were analyzed with flow cytometry (n = 3). D The frequencies of perforin+, granzyme B+, IFN-γ+, and TNF-α+ cells in the PD-1+ CD45.1+CD147+/+ CD8+ or PD-1+ CD45.2+ CD147−/− CD8+ TIL population were analyzed with flow cytometry (n = 3)