• Xi Liu, Lorenzo F Sempere, Yongli Guo, Murray Korc, Sakari Kauppinen, Sarah J Freemantle, and Ethan Dmitrovsky.
• Department of Pharmacology and Toxicology, Dartmouth Medical School, Hanover, NH 03755, USA.
• Transl Res. 2011 Apr 1; 157 (4): 200-8.

AbstractMicroRNAs (miRNAs) are a class of small RNAs that regulate gene expression. Expression profiles of specific miRNAs have improved cancer diagnosis and classification as well as provided prognostic information in many human cancers, including lung cancer. Tumor-suppressive and oncogenic miRNAs were uncovered in lung carcinogenesis. The biological functions of these miRNAs in lung cancer were validated recently in well-characterized cellular, murine transgenic as well as transplantable lung cancer models, and in human paired normal-malignant lung tissue banks and tissue arrays. Tumor-suppressive and oncogenic miRNAs that were identified in lung cancer will be reviewed here. Emphasis is placed on highlighting those functionally validated miRNAs that are not only biomarkers of lung carcinogenesis but also candidate pharmacologic targets. How these miRNA findings advance an understanding of lung cancer biology and how they could improve lung cancer therapy are discussed in this article.Copyright © 2011 Mosby, Inc. All rights reserved.

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