NID1 levels have been found to be higher in metastatic cancer patients than in patients without metastasis,[24] and ovarian cancer patients have been shown to display an enhanced level of plasma NID1.[54] A recent study reported the detection of NID1 in the saliva of patients with oral cavity squamous cell carcinoma (OSCC).[55] The level of NID1 is well correlated with advanced stages of OSCC and poor survival of OSCC patients. Here, NID1 is linked to oral cavity squamous cell carcinoma.