PMID- 32913236 OWN - NLM STAT- MEDLINE DCOM- 20210325 LR - 20210910 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 10 IP - 1 DP - 2020 Sep 10 TI - Membrane disruption, but not metabolic rewiring, is the key mechanism of anticancer-action of FASN-inhibitors: a multi-omics analysis in ovarian cancer. PG - 14877 LID - 10.1038/s41598-020-71491-z [doi] LID - 14877 AB - Fatty-acid(FA)-synthase(FASN) is a druggable lipogenic oncoprotein whose blockade causes metabolic disruption. Whether drug-induced metabolic perturbation is essential for anticancer drug-action, or is just a secondary-maybe even a defence response-is still unclear. To address this, SKOV3 and OVCAR3 ovarian cancer(OC) cell lines with clear cell and serous histology, two main OC subtypes, were exposed to FASN-inhibitor G28UCM. Growth-inhibition was compared with treatment-induced cell-metabolomes, lipidomes, proteomes and kinomes. SKOV3 and OVCAR3 were equally sensitive to low-dose G28UCM, but SKOV3 was more resistant than OVCAR3 to higher concentrations. Metabolite levels generally decreased upon treatment, but individual acylcarnitines, glycerophospholipids, sphingolipids, amino-acids, biogenic amines, and monosaccharides reacted differently. Drug-induced effects on central-carbon-metabolism and oxidative-phosphorylation (OXPHOS) were essentially different in the two cell lines, since drug-naive SKOV3 are known to prefer glycolysis, while OVCAR3 favour OXPHOS. Moreover, drug-dependent increase of desaturases and polyunsaturated-fatty-acids (PUFAs) were more pronounced in SKOV3 and appear to correlate with G28UCM-tolerance. In contrast, expression and phosphorylation of proteins that control apoptosis, FA synthesis and membrane-related processes (beta-oxidation, membrane-maintenance, transport, translation, signalling and stress-response) were concordantly affected. Overall, membrane-disruption and second-messenger-silencing were crucial for anticancer drug-action, while metabolic-rewiring was only secondary and may support high-dose-FASN-inhibitor-tolerance. These findings may guide future anti-metabolic cancer intervention. FAU - Grunt, Thomas W AU - Grunt TW AD - Cell Signaling and Metabolism Networks Program, Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria. thomas.grunt@meduniwien.ac.at. AD - Comprehensive Cancer Center, Vienna, Austria. thomas.grunt@meduniwien.ac.at. AD - Ludwig Boltzmann Institute for Hematology and Oncology, Vienna, Austria. thomas.grunt@meduniwien.ac.at. FAU - Slany, Astrid AU - Slany A AD - Department of Analytical Chemistry, University of Vienna, Vienna, Austria. FAU - Semkova, Mariya AU - Semkova M AD - Department of Analytical Chemistry, University of Vienna, Vienna, Austria. FAU - Colomer, Ramon AU - Colomer R AD - Department of Medical Oncology, Hospital Universitario La Princesa and Spanish National Cancer Research Centre (CNIO), Clinical Research Program, Madrid, Spain. FAU - Lopez-Rodriguez, Maria Luz AU - Lopez-Rodriguez ML AD - Departamento de Quimica Organica I, Facultad de Ciencias Quimicas, Universidad Complutense de Madrid, Madrid, Spain. FAU - Wuczkowski, Michael AU - Wuczkowski M AD - Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria. FAU - Wagner, Renate AU - Wagner R AD - Cell Signaling and Metabolism Networks Program, Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria. AD - Comprehensive Cancer Center, Vienna, Austria. FAU - Gerner, Christopher AU - Gerner C AD - Department of Analytical Chemistry, University of Vienna, Vienna, Austria. FAU - Stubiger, Gerald AU - Stubiger G AD - Comprehensive Cancer Center, Vienna, Austria. AD - Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200910 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (1,3-bis((3,4,5-trihydroxybenzoyl)oxy)naphthalene) RN - 0 (Fatty Acid Synthesis Inhibitors) RN - 0 (Naphthalenes) RN - 0 (Proteome) RN - 632XD903SP (Gallic Acid) RN - EC 2.3.1.85 (FASN protein, human) RN - EC 2.3.1.85 (Fatty Acid Synthase, Type I) SB - IM MH - Cell Line, Tumor MH - Cell Membrane/chemistry/*drug effects/metabolism MH - Cell Proliferation MH - Drug Resistance, Neoplasm MH - Fatty Acid Synthase, Type I/*antagonists & inhibitors/metabolism MH - Fatty Acid Synthesis Inhibitors/pharmacology MH - Female MH - Gallic Acid/*analogs & derivatives/pharmacology MH - Humans MH - Lipidomics/*methods MH - Metabolome MH - Naphthalenes/*pharmacology MH - Ovarian Neoplasms/*drug therapy/metabolism/pathology MH - Proteome/*metabolism MH - Signal Transduction PMC - PMC7483762 COIS- The authors declare no competing interests. EDAT- 2020/09/12 06:00 MHDA- 2021/03/26 06:00 PMCR- 2020/09/10 CRDT- 2020/09/11 05:41 PHST- 2020/01/13 00:00 [received] PHST- 2020/07/15 00:00 [accepted] PHST- 2020/09/11 05:41 [entrez] PHST- 2020/09/12 06:00 [pubmed] PHST- 2021/03/26 06:00 [medline] PHST- 2020/09/10 00:00 [pmc-release] AID - 10.1038/s41598-020-71491-z [pii] AID - 71491 [pii] AID - 10.1038/s41598-020-71491-z [doi] PST - epublish SO - Sci Rep. 2020 Sep 10;10(1):14877. doi: 10.1038/s41598-020-71491-z.