SKP2 and head and neck squamous cell carcinoma: Elevated SKP2 expression was observed in male instead of female patients with HNSCC, LAML, or READ (rectum adenocarcinoma); in contrast, the opposite phenomenon was found in KIRP (kidney renal papillary cell carcinoma) and SARC (sarcoma) (p < 0.05) (Supplementary Material 8).