HOXB5 and non-small cell lung carcinoma: Investigation of downstream mechanisms using RNA immunoprecipitation and luciferase reporter assay revealed that lncRNA PRRT3-AS1 acted as a competing endogenous RNA by adsorbing microRNA-507 (miR-507) and enhanced the expression of its target gene, homeobox B5 (HOXB5), in NSCLC.