BTG1 and non-small cell lung carcinoma: BTG1 expression was decreased in hepatocellular, thyroid, nasopharyngeal, esophageal, breast, colorectal, and non-small cell lung cancers, and negatively associated with aggressive behaviors (Sun et al., 2014a; Sun et al., 2014b; Sun et al., 2014c; Sun et al., 2014d; Lu et al., 2014; Sheng et al., 2014; Zhu et al., 2014).