LINC00519 and cancer: For example, CASC9 is up‐regulated in LUSC tissues and plays a promoted role in the proliferation of LUSC cells.14 SNHG1 is reported as an oncogene in LUSC that promotes LUSC cell invasion and metastasis.15 Our study discovered LINC00519 as a novel up‐regulated lncRNA in LUSC based on bioinformatics databases, and LINC00519 has not been studied in cancers yet.