PMID- 29746779 OWN - NLM STAT- MEDLINE DCOM- 20190703 LR - 20190703 IS - 1543-8392 (Electronic) IS - 1543-8384 (Linking) VI - 15 IP - 6 DP - 2018 Jun 4 TI - Energy Metabolism Drugs Block Triple Negative Breast Metastatic Cancer Cell Phenotype. PG - 2151-2164 LID - 10.1021/acs.molpharmaceut.8b00015 [doi] AB - To establish alternative targeted therapies against triple negative (TN) breast cancer, the energy metabolism and the sensitivity of cell growth, migration, and invasiveness toward metabolic, canonical, and NSAID inhibitors were analyzed in MDA-MB-231 and MDA-MB-468, two TN metastatic breast cancer cell lines, under both normoxia (21% O(2)) and hypoxia (0.1% O(2)). For comparative purposes, the analysis was also carried out in the less-metastatic breast MCF-7 cancer cells. Under normoxia, oxidative phosphorylation (OxPhos) was significantly higher (2-times) in MDA-MB-468 than in MDA-MB-231 and MCF-7, whereas their glycolytic fluxes and OxPhos and glycolytic protein contents were all similar. TN cancer cell lines mainly depended on OxPhos (62-75%), whereas MCF-7 cells equally depended on both pathways for ATP supply. Hypoxia for 24 h promoted a significant increase (>20 times) in the glycolytic transcriptional master factor HIF1-alpha in its target proteins GLUT-1, HKI and II, and LDH-A (2-4 times) as well as in the glycolytic flux (1.3-2 times) vs normoxia in MDA-MB-468, MDA-MB-231, and MCF-7. On the contrary, hypoxia decreased (15-60%) the contents of COXIV, 2OGDH, ND1, and ATP synthase as well as the OxPhos flux (50-75%), correlating with a high mitophagy level in the three cell lines. Under hypoxia, the three cancer cell lines mainly depended on glycolysis (70-80%). Anti-mitochondrial drugs (oligomycin, casiopeina II-gly, and methoxy-TEA) and celecoxib, at doses used to block OxPhos, significantly decreased TN cancer cell proliferation (IC(50) = 2-20 muM), migration capacity (10-90%), and invasiveness (25-65%). The present data support the use of mitochondrially targeted inhibitors for the treatment of TN breast carcinoma. FAU - Pacheco-Velazquez, Silvia Cecilia AU - Pacheco-Velazquez SC AD - Departamento de Bioquimica , Instituto Nacional de Cardiologia , 14080 Tlalpan , CDMX , Mexico. FAU - Robledo-Cadena, Diana Xochiquetzal AU - Robledo-Cadena DX AD - Departamento de Bioquimica , Instituto Nacional de Cardiologia , 14080 Tlalpan , CDMX , Mexico. FAU - Hernandez-Resendiz, Ileana AU - Hernandez-Resendiz I AD - Departamento de Bioquimica , Instituto Nacional de Cardiologia , 14080 Tlalpan , CDMX , Mexico. FAU - Gallardo-Perez, Juan Carlos AU - Gallardo-Perez JC AD - Departamento de Bioquimica , Instituto Nacional de Cardiologia , 14080 Tlalpan , CDMX , Mexico. FAU - Moreno-Sanchez, Rafael AU - Moreno-Sanchez R AD - Departamento de Bioquimica , Instituto Nacional de Cardiologia , 14080 Tlalpan , CDMX , Mexico. FAU - Rodriguez-Enriquez, Sara AU - Rodriguez-Enriquez S AUID- ORCID: 0000-0002-0822-1233 AD - Departamento de Bioquimica , Instituto Nacional de Cardiologia , 14080 Tlalpan , CDMX , Mexico. AD - Laboratorio de Medicina Traslacional , Instituto Nacional de Cancerologia , 14080 Tlalpan , CDMX , Mexico. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180523 PL - United States TA - Mol Pharm JT - Molecular pharmaceutics JID - 101197791 RN - 0 (Antineoplastic Agents) SB - IM MH - 3T3 Cells MH - Animals MH - Antineoplastic Agents/*pharmacology/therapeutic use MH - Cell Line, Tumor MH - Cell Proliferation/drug effects MH - Drug Screening Assays, Antitumor MH - Energy Metabolism/*drug effects MH - Female MH - Humans MH - Inhibitory Concentration 50 MH - Mice MH - Mitochondria/*drug effects/metabolism MH - Oxidative Phosphorylation/drug effects MH - Triple Negative Breast Neoplasms/*drug therapy/pathology OTO - NOTNLM OT - breast cancer OT - celecoxib OT - energy metabolism drugs OT - glycolysis OT - metastasis OT - oxidative phosphorylation EDAT- 2018/05/11 06:00 MHDA- 2019/07/04 06:00 CRDT- 2018/05/11 06:00 PHST- 2018/05/11 06:00 [pubmed] PHST- 2019/07/04 06:00 [medline] PHST- 2018/05/11 06:00 [entrez] AID - 10.1021/acs.molpharmaceut.8b00015 [doi] PST - ppublish SO - Mol Pharm. 2018 Jun 4;15(6):2151-2164. doi: 10.1021/acs.molpharmaceut.8b00015. Epub 2018 May 23.