He, Xiaoyan Let-7a elevates p21(WAF1) levels by targeting of NIRF and suppresses the growth of A549 lung cancer cells. [electronic resource] - FEBS letters Nov 2009 - 3501-7 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1873-3468 Standard No.: 10.1016/j.febslet.2009.10.007 doi Subjects--Topical Terms: 3' Untranslated Regions--geneticsAnimalsBase SequenceBinding SitesCell Line, TumorCell ProliferationCell Transformation, NeoplasticComputational BiologyConserved SequenceCyclin-Dependent Kinase Inhibitor p21--geneticsDown-Regulation--geneticsGene Expression Regulation, Neoplastic--geneticsHumansLung Neoplasms--geneticsMiceMice, Inbred BALB CMicroRNAs--geneticsPhylogenyUbiquitin-Protein Ligases--genetics