PMID- 24762440 OWN - NLM STAT- MEDLINE DCOM- 20140818 LR - 20220408 IS - 1558-8238 (Electronic) IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 124 IP - 6 DP - 2014 Jun TI - ZEB1 sensitizes lung adenocarcinoma to metastasis suppression by PI3K antagonism. PG - 2696-708 LID - 72171 [pii] LID - 10.1172/JCI72171 [doi] AB - Epithelial tumor cells that have undergone epithelial-to-mesenchymal transition (EMT) are typically prone to metastasis and drug resistance and contribute to a poor clinical outcome. The transcription factor ZEB1 is a known driver of EMT, and mediators of ZEB1 represent potential therapeutic targets for metastasis suppression. Here, we have shown that phosphatidylinositol 3-kinase-targeted (PI3K-targeted) therapy suppresses metastasis in a mouse model of Kras/Tp53-mutant lung adenocarcinoma that develops metastatic disease due to high expression of ZEB1. In lung adenocarcinoma cells from Kras/Tp53-mutant animals and human lung cancer cell lines, ZEB1 activated PI3K by derepressing miR-200 targets, including amphiregulin (AREG), betacellulin (BTC), and the transcription factor GATA6, which stimulated an EGFR/ERBB2 autocrine loop. Additionally, ZEB1-dependent derepression of the miR-200 and miR-183 target friend of GATA 2 (FOG2) enhanced GATA3-induced expression of the p110alpha catalytic subunit of PI3K. Knockdown of FOG2, p110alpha, and RHEB ameliorated invasive and metastatic propensities of tumor cells. Surprisingly, FOG2 was not required for mesenchymal differentiation, suggesting that mesenchymal differentiation and invasion are distinct and separable processes. Together, these results indicate that ZEB1 sensitizes lung adenocarcinoma cells to metastasis suppression by PI3K-targeted therapy and suggest that treatments to selectively modify the metastatic behavior of mesenchymal tumor cells are feasible and may be of clinical value. FAU - Yang, Yanan AU - Yang Y FAU - Ahn, Young-Ho AU - Ahn YH FAU - Chen, Yulong AU - Chen Y FAU - Tan, Xiaochao AU - Tan X FAU - Guo, Lixia AU - Guo L FAU - Gibbons, Don L AU - Gibbons DL FAU - Ungewiss, Christin AU - Ungewiss C FAU - Peng, David H AU - Peng DH FAU - Liu, Xin AU - Liu X FAU - Lin, Steven H AU - Lin SH FAU - Thilaganathan, Nishan AU - Thilaganathan N FAU - Wistuba, Ignacio I AU - Wistuba II FAU - Rodriguez-Canales, Jaime AU - Rodriguez-Canales J FAU - McLendon, Georgia AU - McLendon G FAU - Creighton, Chad J AU - Creighton CJ FAU - Kurie, Jonathan M AU - Kurie JM LA - eng GR - P30 CA016672/CA/NCI NIH HHS/United States GR - P50 CA70907/CA/NCI NIH HHS/United States GR - P30 CA125123/CA/NCI NIH HHS/United States GR - R01 CA157450/CA/NCI NIH HHS/United States GR - T32 CA009299/CA/NCI NIH HHS/United States GR - P50 CA070907/CA/NCI NIH HHS/United States GR - K08 CA151651/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20140424 PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (Enzyme Inhibitors) RN - 0 (Gonanes) RN - 0 (Homeodomain Proteins) RN - 0 (Kruppel-Like Transcription Factors) RN - 0 (PX-866) RN - 0 (Phosphoinositide-3 Kinase Inhibitors) RN - 0 (Transcription Factors) RN - 0 (ZEB1 protein, human) RN - 0 (ZEB1 protein, mouse) RN - 0 (Zinc Finger E-box-Binding Homeobox 1) RN - EC 2.7.10.1 (EGFR protein, mouse) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Erbb2 protein, mouse) RN - EC 2.7.10.1 (Receptor, ErbB-2) RN - EC 3.6.5.2 (Hras protein, mouse) RN - EC 3.6.5.2 (Proto-Oncogene Proteins p21(ras)) SB - IM MH - Adenocarcinoma/drug therapy/*metabolism/*secondary MH - Adenocarcinoma of Lung MH - Animals MH - Cell Line, Tumor MH - Enzyme Inhibitors/pharmacology MH - Epithelial-Mesenchymal Transition MH - ErbB Receptors/metabolism MH - Gene Expression Regulation, Enzymologic MH - Gene Expression Regulation, Neoplastic MH - Genes, p53 MH - Gonanes/pharmacology MH - Homeodomain Proteins/*metabolism MH - Humans MH - Kruppel-Like Transcription Factors/*metabolism MH - Lung Neoplasms/drug therapy/*metabolism/*secondary MH - Mice MH - Mutation MH - Neoplasm Metastasis/prevention & control MH - Phosphatidylinositol 3-Kinases/genetics MH - *Phosphoinositide-3 Kinase Inhibitors MH - Proto-Oncogene Proteins p21(ras)/genetics MH - Receptor, ErbB-2/metabolism MH - Transcription Factors/*metabolism MH - Zinc Finger E-box-Binding Homeobox 1 PMC - PMC4038569 EDAT- 2014/04/26 06:00 MHDA- 2014/08/19 06:00 PMCR- 2014/04/24 CRDT- 2014/04/26 06:00 PHST- 2014/04/26 06:00 [entrez] PHST- 2014/04/26 06:00 [pubmed] PHST- 2014/08/19 06:00 [medline] PHST- 2014/04/24 00:00 [pmc-release] AID - 72171 [pii] AID - 10.1172/JCI72171 [doi] PST - ppublish SO - J Clin Invest. 2014 Jun;124(6):2696-708. doi: 10.1172/JCI72171. Epub 2014 Apr 24.