PMID- 25873175 OWN - NLM STAT- MEDLINE DCOM- 20150623 LR - 20221207 IS - 1878-3686 (Electronic) IS - 1535-6108 (Print) IS - 1535-6108 (Linking) VI - 27 IP - 4 DP - 2015 Apr 13 TI - AXL mediates resistance to PI3Kalpha inhibition by activating the EGFR/PKC/mTOR axis in head and neck and esophageal squamous cell carcinomas. PG - 533-46 LID - S1535-6108(15)00098-7 [pii] LID - 10.1016/j.ccell.2015.03.010 [doi] AB - Phosphoinositide-3-kinase (PI3K)-alpha inhibitors have shown clinical activity in squamous cell carcinomas (SCCs) of head and neck (H&N) bearing PIK3CA mutations or amplification. Studying models of therapeutic resistance, we have observed that SCC cells that become refractory to PI3Kalpha inhibition maintain PI3K-independent activation of the mammalian target of rapamycin (mTOR). This persistent mTOR activation is mediated by the tyrosine kinase receptor AXL. AXL is overexpressed in resistant tumors from both laboratory models and patients treated with the PI3Kalpha inhibitor BYL719. AXL dimerizes with and phosphorylates epidermal growth factor receptor (EGFR), resulting in activation of phospholipase Cgamma (PLCgamma)-protein kinase C (PKC), which, in turn, activates mTOR. Combined treatment with PI3Kalpha and either EGFR, AXL, or PKC inhibitors reverts this resistance. CI - Copyright (c) 2015 Elsevier Inc. All rights reserved. FAU - Elkabets, Moshe AU - Elkabets M AD - Human Oncology & Pathogenesis Program (HOPP), Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. FAU - Pazarentzos, Evangelos AU - Pazarentzos E AD - Division of Hematology and Oncology, Department of Medicine, Helen Diller Comprehensive Cancer Center, University of California, San Francisco, 600 16th Street, San Francisco, CA 94158, USA. FAU - Juric, Dejan AU - Juric D AD - Massachusetts General Hospital Cancer Center, 55 Fruit Street, Boston, MA 02114, USA. FAU - Sheng, Qing AU - Sheng Q AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Pelossof, Raphael A AU - Pelossof RA AD - Computation Biology Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. FAU - Brook, Samuel AU - Brook S AD - Human Oncology & Pathogenesis Program (HOPP), Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. FAU - Benzaken, Ana Oaknin AU - Benzaken AO AD - Medical Oncology, Vall d'Hebron Institute of Oncology, Pg Vall d'Hebron, 119-129, Barcelona 08035, Spain. FAU - Rodon, Jordi AU - Rodon J AD - Medical Oncology, Vall d'Hebron Institute of Oncology, Pg Vall d'Hebron, 119-129, Barcelona 08035, Spain. FAU - Morse, Natasha AU - Morse N AD - Human Oncology & Pathogenesis Program (HOPP), Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. FAU - Yan, Jenny Jiacheng AU - Yan JJ AD - Division of Hematology and Oncology, Department of Medicine, Helen Diller Comprehensive Cancer Center, University of California, San Francisco, 600 16th Street, San Francisco, CA 94158, USA. FAU - Liu, Manway AU - Liu M AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Das, Rita AU - Das R AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Chen, Yan AU - Chen Y AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Tam, Angela AU - Tam A AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Wang, Huiqin AU - Wang H AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Liang, Jinsheng AU - Liang J AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Gurski, Joseph M AU - Gurski JM AD - Massachusetts General Hospital Cancer Center, 55 Fruit Street, Boston, MA 02114, USA. FAU - Kerr, Darcy A AU - Kerr DA AD - Massachusetts General Hospital Cancer Center, 55 Fruit Street, Boston, MA 02114, USA. FAU - Rosell, Rafael AU - Rosell R AD - Catalan Institute of Oncology, Hospital Germans Trias i Pujol, Ctra Canyet s/n, 08916 Badalona, Spain; Pangaea Biotech SL, Laboratorio de Oncologia, Hospital Universitario Quiron Dexeus, C/ Sabino Arana 5-19, 08028 Barcelona, Spain. FAU - Teixido, Cristina AU - Teixido C AD - Pangaea Biotech SL, Laboratorio de Oncologia, Hospital Universitario Quiron Dexeus, C/ Sabino Arana 5-19, 08028 Barcelona, Spain. FAU - Huang, Alan AU - Huang A AD - Oncology Translational Medicine, Novartis Institutes for BioMedical Research, 100 Technology Square, Cambridge, MA 02139, USA. FAU - Ghossein, Ronald A AU - Ghossein RA AD - Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Rosen, Neal AU - Rosen N AD - Human Oncology & Pathogenesis Program (HOPP), Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA; Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. FAU - Bivona, Trever G AU - Bivona TG AD - Division of Hematology and Oncology, Department of Medicine, Helen Diller Comprehensive Cancer Center, University of California, San Francisco, 600 16th Street, San Francisco, CA 94158, USA. FAU - Scaltriti, Maurizio AU - Scaltriti M AD - Human Oncology & Pathogenesis Program (HOPP), Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. Electronic address: scaltrim@mskcc.org. FAU - Baselga, Jose AU - Baselga J AD - Human Oncology & Pathogenesis Program (HOPP), Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA; Department of Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA. Electronic address: baselgaj@mskcc.org. LA - eng SI - GEO/GSE61515 GR - P30 CA008748/CA/NCI NIH HHS/United States GR - DP2 CA174497/CA/NCI NIH HHS/United States GR - K12 CA087723/CA/NCI NIH HHS/United States GR - R01 CA169338/CA/NCI NIH HHS/United States GR - T32 CA071345/CA/NCI NIH HHS/United States PT - Journal Article PL - United States TA - Cancer Cell JT - Cancer cell JID - 101130617 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Phosphoinositide-3 Kinase Inhibitors) RN - 0 (Protein Kinase Inhibitors) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Thiazoles) RN - 08W5N2C97Q (Alpelisib) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.1.137 (Class I Phosphatidylinositol 3-Kinases) RN - EC 2.7.1.137 (PIK3CA protein, human) RN - EC 2.7.10.1 (Receptor Protein-Tyrosine Kinases) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 2.7.11.13 (Protein Kinase C) RN - PQX0D8J21J (Cetuximab) RN - 0 (Axl Receptor Tyrosine Kinase) SB - IM MH - Animals MH - Antibodies, Monoclonal, Humanized/pharmacology MH - Carcinoma, Squamous Cell/*metabolism MH - Cell Line, Tumor MH - Cetuximab MH - Class I Phosphatidylinositol 3-Kinases MH - Drug Resistance, Neoplasm MH - Esophageal Neoplasms/*metabolism MH - Esophageal Squamous Cell Carcinoma MH - Head and Neck Neoplasms/*metabolism MH - Humans MH - Mice MH - Phosphatidylinositol 3-Kinases/genetics/metabolism MH - Phosphoinositide-3 Kinase Inhibitors MH - Protein Kinase C/metabolism MH - Protein Kinase Inhibitors/pharmacology MH - Proto-Oncogene Proteins/genetics/metabolism/*physiology MH - Receptor Protein-Tyrosine Kinases/genetics/metabolism/*physiology MH - Signal Transduction MH - TOR Serine-Threonine Kinases/metabolism MH - Thiazoles/pharmacology MH - Xenograft Model Antitumor Assays MH - Axl Receptor Tyrosine Kinase PMC - PMC4398915 MID - NIHMS677397 COIS- Conflict of interest J.B., D.J. and N.R. have consulted for Novartis Pharmaceuticals. A.H., Q.S., J.J.Y., R.D., Y.C., A.T., H.W., J.L., and M.L. are full-time employees of Novartis Pharmaceuticals. EDAT- 2015/04/16 06:00 MHDA- 2015/06/24 06:00 PMCR- 2016/04/13 CRDT- 2015/04/16 06:00 PHST- 2014/08/31 00:00 [received] PHST- 2015/01/11 00:00 [revised] PHST- 2015/03/16 00:00 [accepted] PHST- 2015/04/16 06:00 [entrez] PHST- 2015/04/16 06:00 [pubmed] PHST- 2015/06/24 06:00 [medline] PHST- 2016/04/13 00:00 [pmc-release] AID - S1535-6108(15)00098-7 [pii] AID - 10.1016/j.ccell.2015.03.010 [doi] PST - ppublish SO - Cancer Cell. 2015 Apr 13;27(4):533-46. doi: 10.1016/j.ccell.2015.03.010.