To this end, we obtained ccRCC patient specimens and sorted prevalent tumor-infiltrating immune populations such as CD8+ T cells (n = 5), NK CD16+ cells (n = 2), CD4+ T cells (n = 3), and macrophages (n = 4) as well as non-immune CD45– cells (n = 1). The gene discussed is CD4; the disease is nonpapillary renal cell carcinoma.