MTSS1 and lung adenocarcinoma: In addition to these functions, miR‐423‐5p also significantly promotes colony formation, cell migration, invasion and distant brain metastasis in lung adenocarcinoma by inhibiting metastasis suppressor 1 (MTSS1) expression,60 Similarly, high miR‐423‐3p expression is also associated with an increased risk of brain metastases from lung adenocarcinoma.61