This is the read counts obtained from RNAseq data, which is deposited in the European Nucleotide Archive (ENA) (Leinonen et al., 2011), under accession number PRJEB23709. The work is published in Cancer Cell entitled "Distinct Immune Cell Populations Define Response to Anti-PD-1 Monotherapy and Anti-PD-1/Anti-CTLA-4 Combined Therapy". DOI: https://doi.org/10.1016/j.ccell.2019.01.003