PMID- 31375515 OWN - NLM STAT- MEDLINE DCOM- 20200910 LR - 20200910 IS - 1557-3265 (Electronic) IS - 1078-0432 (Print) IS - 1078-0432 (Linking) VI - 25 IP - 22 DP - 2019 Nov 15 TI - A Fatty Acid Oxidation-dependent Metabolic Shift Regulates the Adaptation of BRAF-mutated Melanoma to MAPK Inhibitors. PG - 6852-6867 LID - 10.1158/1078-0432.CCR-19-0253 [doi] AB - PURPOSE: Treatment of BRAF(V600E) -mutant melanomas with MAPK inhibitors (MAPKi) results in significant tumor regression, but acquired resistance is pervasive. To understand nonmutational mechanisms underlying the adaptation to MAPKi and to identify novel vulnerabilities of melanomas treated with MAPKi, we focused on the initial response phase during treatment with MAPKi. EXPERIMENTAL DESIGN: By screening proteins expressed on the cell surface of melanoma cells, we identified the fatty acid transporter CD36 as the most consistently upregulated protein upon short-term treatment with MAPKi. We further investigated the effects of MAPKi on fatty acid metabolism using in vitro and in vivo models and analyzing patients' pre- and on-treatment tumor specimens. RESULTS: Melanoma cells treated with MAPKi displayed increased levels of CD36 and of PPARalpha-mediated and carnitine palmitoyltransferase 1A (CPT1A)-dependent fatty acid oxidation (FAO). While CD36 is a useful marker of melanoma cells during adaptation and drug-tolerant phases, the upregulation of CD36 is not functionally involved in FAO changes that characterize MAPKi-treated cells. Increased FAO is required for BRAF(V600E) -mutant melanoma cells to survive under the MAPKi-induced metabolic stress prior to acquiring drug resistance. The upfront and concomitant inhibition of FAO, glycolysis, and MAPK synergistically inhibits tumor cell growth in vitro and in vivo. CONCLUSIONS: Thus, we identified a clinically relevant therapeutic approach that has the potential to improve initial responses and to delay acquired drug resistance of BRAF(V600E) -mutant melanoma. CI - (c)2019 American Association for Cancer Research. FAU - Aloia, Andrea AU - Aloia A AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. werner.kovacs@biol.ethz.ch aloia.andrea@libero.it. FAU - Mullhaupt, Daniela AU - Mullhaupt D AUID- ORCID: 0000-0003-4167-1591 AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. FAU - Chabbert, Christophe D AU - Chabbert CD AUID- ORCID: 0000-0001-7851-4640 AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. FAU - Eberhart, Tanja AU - Eberhart T AUID- ORCID: 0000-0002-3621-5594 AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. FAU - Fluckiger-Mangual, Stefanie AU - Fluckiger-Mangual S AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. FAU - Vukolic, Ana AU - Vukolic A AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. FAU - Eichhoff, Ossia AU - Eichhoff O AUID- ORCID: 0000-0002-3319-1312 AD - Department of Dermatology, University Hospital Zurich, Zurich, Switzerland. FAU - Irmisch, Anja AU - Irmisch A AD - Department of Dermatology, University Hospital Zurich, Zurich, Switzerland. FAU - Alexander, Leila T AU - Alexander LT AD - Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland. FAU - Scibona, Ernesto AU - Scibona E AUID- ORCID: 0000-0002-2012-5674 AD - Institute of Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland. FAU - Frederick, Dennie T AU - Frederick DT AD - Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Miao, Benchun AU - Miao B AD - Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Tian, Tian AU - Tian T AD - Department of Computer Science, New Jersey Institute of Technology, Newark, New Jersey. FAU - Cheng, Chaoran AU - Cheng C AD - Department of Computer Science, New Jersey Institute of Technology, Newark, New Jersey. FAU - Kwong, Lawrence N AU - Kwong LN AD - Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas. FAU - Wei, Zhi AU - Wei Z AUID- ORCID: 0000-0001-6059-4267 AD - Department of Computer Science, New Jersey Institute of Technology, Newark, New Jersey. FAU - Sullivan, Ryan J AU - Sullivan RJ AD - Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Boland, Genevieve M AU - Boland GM AUID- ORCID: 0000-0002-7522-6173 AD - Department of Surgery, Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Herlyn, Meenhard AU - Herlyn M AD - Molecular and Cellular Oncogenesis Program and Melanoma Research Center, The Wistar Institute, Philadelphia, Pennsylvania. FAU - Flaherty, Keith T AU - Flaherty KT AD - Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Zamboni, Nicola AU - Zamboni N AD - Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland. FAU - Dummer, Reinhard AU - Dummer R AD - Department of Dermatology, University Hospital Zurich, Zurich, Switzerland. FAU - Zhang, Gao AU - Zhang G AD - Molecular and Cellular Oncogenesis Program and Melanoma Research Center, The Wistar Institute, Philadelphia, Pennsylvania. FAU - Levesque, Mitchell P AU - Levesque MP AD - Department of Dermatology, University Hospital Zurich, Zurich, Switzerland. FAU - Krek, Wilhelm AU - Krek W AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. FAU - Kovacs, Werner J AU - Kovacs WJ AUID- ORCID: 0000-0002-4440-4344 AD - Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland. werner.kovacs@biol.ethz.ch aloia.andrea@libero.it. LA - eng GR - P01 CA114046/CA/NCI NIH HHS/United States GR - P30 CA010815/CA/NCI NIH HHS/United States GR - P50 CA174523/CA/NCI NIH HHS/United States GR - U54 CA224070/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20190802 PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Biomarkers) RN - 0 (CD36 Antigens) RN - 0 (Fatty Acids) RN - 0 (PPAR alpha) RN - 0 (PPARA protein, human) RN - 0 (Protein Kinase Inhibitors) RN - EC 2.7.11.1 (BRAF protein, human) RN - EC 2.7.11.1 (Proto-Oncogene Proteins B-raf) SB - IM MH - *Adaptation, Biological MH - Alleles MH - Animals MH - Biomarkers MH - CD36 Antigens/genetics/metabolism MH - Cell Line, Tumor MH - Cell Proliferation/drug effects MH - Disease Models, Animal MH - Drug Resistance, Neoplasm/genetics MH - Fatty Acids/*metabolism MH - Gene Expression Regulation, Neoplastic/drug effects MH - Genotype MH - Glycolysis MH - Humans MH - Immunophenotyping MH - Melanoma/*genetics/*metabolism/pathology MH - Mice MH - Models, Biological MH - *Mutation MH - Neoplasm Staging MH - *Oxidation-Reduction MH - PPAR alpha/metabolism MH - Protein Kinase Inhibitors/*pharmacology MH - Proto-Oncogene Proteins B-raf/*genetics MH - Xenograft Model Antitumor Assays PMC - PMC6906212 MID - NIHMS1543208 COIS- DECLARATION OF INTEREST CDC is a full-time employee of Roche AG and a shareholder in AstraZeneca. Other authors declare no competing interests. EDAT- 2019/08/04 06:00 MHDA- 2020/09/12 06:00 PMCR- 2020/05/15 CRDT- 2019/08/04 06:00 PHST- 2019/01/21 00:00 [received] PHST- 2019/05/23 00:00 [revised] PHST- 2019/07/30 00:00 [accepted] PHST- 2019/08/04 06:00 [pubmed] PHST- 2020/09/12 06:00 [medline] PHST- 2019/08/04 06:00 [entrez] PHST- 2020/05/15 00:00 [pmc-release] AID - 1078-0432.CCR-19-0253 [pii] AID - 10.1158/1078-0432.CCR-19-0253 [doi] PST - ppublish SO - Clin Cancer Res. 2019 Nov 15;25(22):6852-6867. doi: 10.1158/1078-0432.CCR-19-0253. Epub 2019 Aug 2.