XRN2 and small cell lung carcinoma: In our study, for the first time, we revealed that TFs DEK and XRN2 may regulate OGT expression in SCLC in the following ways: (1) both TFs were Up-DEGs in SCLC, similar to OGT; (2) conspicuous and positive expression relationships of DEK and XRN2 with OGT were detected in SCLC; and (3) ChIP-Seq binding peaks of the two TFs were observed in the potential promoter region of OGT.