After lncNBAT1 interacts with signal transducer and activator of transcription 1 (STAT1), it prevents the enrichment of STAT1 at the promoter region of apolipoprotein B mRNA editing enzyme catalytic subunit 3A (APOBEC3A), inhibiting the expression of APOBEC3A and enhancing DLBCL cells’ resistance to MTX [161]. The gene discussed is STAT1; the disease is diffuse large B-cell lymphoma.