TRIM28 and non-small cell lung carcinoma: To further explore the interaction between DDX39B and TRIM28 in viable NSCLC cells, we performed a bimolecular fluorescence complementation (BiFC) assay and observed reconstituted fluorophore signals in NSCLC cells following co-transfection with VN173-DDX39B and VC155-TRIM28 plasmid (Fig. 3i).