PGK1 and head and neck squamous cell carcinoma: Meanwhile, in head and neck squamous cell carcinoma (HNSCC), the expression levels of PGK1 and SLC2A1 were upregulated and were significantly associated with the patients’ poorer overall survival (OS), disease-free survival (DFS) and relapse-free survival (RFS) (Kunkel et al., 2003; Miller et al., 2024; Swartz et al., 2016; Wang et al., 2023).