Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) (also termed NEAT2 or nuclear-enriched abundant transcript 2) was one of the first lncRNAs identified in relation to tumorigenesis and used as a prognostic marker for development of metastatic disease and poorer survival rate in early-stage lung adenocarcinoma [98]. This evidence concerns the gene MALAT1 and metastatic neoplasm.