CEACAM5 and gastric cancer: Yang et al. have found that the AUC values of lncRNA PANDAR (promoter of CDKN1A antisense DNA damage activated RNA), FOXD2-AS1 (FOXD2 adjacent opposite strand RNA 1), and SMARCC2 (SWI/SNF related, matrix associated, actin dependent regulator of chromatin subfamily c member 2) as diagnostic biomarkers of gastric cancer are 0.77, 0.7, and 0.75, respectively, which are similar to the AUC value of combined CEA, AFP, CA125, CA153, and CA199 [97].