RT Journal Article T1 Mitochondrial pH Nanosensors for Metabolic Profiling of Breast Cancer Cell Lines. A1 Ripoll, Consuelo A1 Roldan, Mar A1 Contreras-Montoya, Rafael A1 Diaz-Mochon, Juan J A1 Martin, Miguel A1 Ruedas-Rama, Maria J A1 Orte, Angel K1 FLIM microscopy K1 cancer metabolism K1 intracellular sensors K1 nanosensing K1 tumoral metabolism AB The main role of mitochondria, as pivotal organelles for cellular metabolism, is the production of energy (ATP) through an oxidative phosphorylation system. During this process, the electron transport chain creates a proton gradient that drives the synthesis of ATP. One of the main features of tumoral cells is their altered metabolism, providing alternative routes to enhance proliferation and survival. Hence, it is of utmost importance to understand the relationship between mitochondrial pH, tumoral metabolism, and cancer. In this manuscript, we develop a highly specific nanosensor to accurately measure the intramitochondrial pH using fluorescence lifetime imaging microscopy (FLIM). Importantly, we have applied this nanosensor to establish differences that may be hallmarks of different metabolic pathways in breast cancer cell models, leading to the characterization of different metabophenotypes. YR 2020 FD 2020-05-25 LK http://hdl.handle.net/10668/15650 UL http://hdl.handle.net/10668/15650 LA en DS RISalud RD Apr 7, 2025