RT info:eu-repo/semantics/article T1 Systematic Identification of MCU Modulators by Orthogonal Interspecies Chemical Screening A1 Arduino, Daniela M. A1 Wettmarshausen, Jennifer A1 Vais, Horia A1 Navas Navarro, Paloma A1 Cheng, Yiming A1 Leimpek, Anja A1 Zhongming Ma A1 Río Lorenzo, Alba del A1 Giordano, Andrea A1 García Pérez, Cecilia A1 Médard, Guillaume A1 Kuster, Bernhard A1 García-Sancho Martín, Francisco Javier A1 Mokranjac, Dejana A1 Foskett, J. Kevin A1 Alonso Alonso, María Teresa A1 Perocchi, Fabiana K1 Calcio mitocondrial K1 Mitochondrial calcium AB The mitochondrial calcium uniporter complex is essential for calcium (Ca2+) uptake into mitochondria of all mammalian tissues, where it regulates bioenergetics, cell death, and Ca2+ signal transduction. Despite its involvement in several human diseases, we currently lack pharmacological agents for targeting uniporter activity. Here we introduce a high-throughput assay that selects for human MCU-specific small-molecule modulators in primary drug screens. Using isolated yeast mitochondria, reconstituted with human MCU, its essential regulator EMRE, and aequorin, and exploiting a D-lactate- and mannitol/sucrose-based bioenergetic shunt that greatly minimizes false-positive hits, we identify mitoxantrone out of more than 600 clinically approved drugs as a direct selective inhibitor of human MCU. We validate mitoxantrone in orthogonal mammalian cell-based assays, demonstrating that our screening approach is an effective and robust tool for MCU-specific drug discovery and, more generally, for the identification of compounds that target mitochondrial functions. PB Elsevier SN 1097-2765 YR 2017 FD 2017 LK http://uvadoc.uva.es/handle/10324/35195 UL http://uvadoc.uva.es/handle/10324/35195 LA eng NO Molecular Cell, 2017, Volume 67, Issue 4, P711-723.e7 NO Producción Científica DS UVaDOC RD 22-nov-2024