CEACAM5 and neoplasm: LncRNA Sex-Determining Region Y Box 2 overlapping transcript (SOX2OT), antisense noncoding RNA in the antisense non-coding RNA in the Inhibitor of Cyclin-Dependent Kinase 4 locus (ANRIL), combined with traditional tumor biomarkers CEA, SCCA, and CYFRA21–1 were selected to form a diagnostic panel for NSCLC (65).