PTTG1 and neoplasm: In OSCC, PTTG1 expression is associated with the development of OSCC in precancerous lesions [30], which is linked to lymph node metastasis and the tumor‐node‐metastasis (TNM) process, potentially through the EMT mechanism [31], research on the direct relationship and molecular mechanisms of OSCC metastasis involving PTTG1.