Journal
CELL REPORTS
Volume 8, Issue 1, Pages 40-49Publisher
CELL PRESS
DOI: 10.1016/j.celrep.2014.05.036
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Funding
- Department of Defense Lung Concept Award (DoD USAMRAA) [W81XWH-12-1-0211]
- V Foundation for Cancer Research
- Damon Runyon Cancer Research Foundation [DRR-26-13]
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Squamous cell carcinoma (SCC) of the lung is the second most common subtype of lung cancer. With limited treatment options, the 5-year survival rate of SCC is only 15%. Although genomic alterations in SCC have been characterized, identifying the alterations that drive SCC is critical for improving treatment strategies. Mouse models of SCC are currently limited. Using lentiviral delivery of Sox2 specifically to the mouse lung, we tested the ability of Sox2 to promote tumorigenesis in multiple tumor suppressor backgrounds. Expression of Sox2, frequently amplified in human SCC, specifically cooperates with loss of Lkb1 to promote squamous lung tumors. Mouse tumors exhibit characteristic histopathology and biomarker expression similar to human SCC. They also mimic human SCCs by activation of therapeutically relevant pathways including STAT and mTOR. This model may be utilized to test the contribution of additional driver alterations in SCC, as well as for preclinical drug discovery.
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