GAS5 and lung carcinoma: By analyzing our published microarray data from urethane-induced lung cancer in mice and reviewing recent literature regarding lung cancer-associated lncRNAs, we selected 19 lncRNAs including AK016354, AK041746, AK169506, AK165804, AK006202, AK008754, AK014679, AK017233, AK030127, AK086245, AK040806, AK084832, MALAT1, HOTAIR, GAS5, LINCRNA-P21, SOX2OT, SNHG1, and TUG1 for further analysis.