LCK and testicular germ cell tumor: Subsequently, we examined the expression of LCK across all tumor types and found that it was considerably elevated in various tumor types compared to normal tissues (Figure 2C), including lymphoid neoplasm diffuse large B-cell lymphoma (DLBC), kidney renal clear cell carcinoma (KIRC), acute myeloid leukemia (LAML), pancreatic adenocarcinoma (PAAD), rectum adenocarcinoma (READ), skin cutaneous melanoma (SKCM), stomach adenocarcinoma (STAD), testicular germ cell tumors (TGCT), and thymoma (THYM).