ATF4 and metastatic malignant neoplasm in the lymph nodes: CCDC106 and ATF4 protein expression were significantly correlated with FIGO stage (p < 0.0001; p = 0.0007), lymph node metastasis (p = 0.009; p = 0.003) and p53 status (p = 0.015; p = 0.008), respectively.