MALAT1 and squamous cell lung carcinoma: Ji et al. found that the association of MALAT1 with metastasis of NSCLC was distinct among different histological subtypes: MALAT1 expression in metastatic lung adenocarcinoma was several fold higher than in non-metastatic adenocarcinoma, but no significant differences were found between metastatic and non-metastatic lung squamous cell carcinoma patients [9].