THBS1 and oral cavity squamous cell carcinoma: Reduced THBS1 levels are also associated with poor prognosis in a variety of cancers, including non-small cell lung cancer [17], pancreatic adenocarcinoma, gastric cancer [18], invasive cervical cancer, and oral squamous cell carcinoma [19], whereas THBS1 is positively correlated with infiltration in hepatocellular carcinoma [20].