MALAT1 and lung adenocarcinoma: Ji et al. characterized a metastasis-associated lung adenocarcinoma transcript (MALAT1) transcribed by RNA polymerase II located on human chromosome 11q13 and mouse chromosome 19qA (Zhang et al., 2012; Wilusz, 2016), which is widely known for its properties in predicting early NSCLC metastasis and survival (Ji et al., 2003), the major transcript of MALAT1 is approximately mid-8 kb in humans and 6.7 kb in mice (Wilusz et al., 2008).