Résumé
Metabolic adaptability is essential for tumor progression and includes cooperation between cancer cells with different metabolic phenotypes. Optimal glucose supply to glycolytic cancer cells occurs when oxidative cancer cells use lactate preferentially to glucose. However, using lactate instead of glucose mimics glucose deprivation, and glucose starvation induces autophagy. We report that lactate sustains autophagy in cancer. In cancer cells preferentially to normal cells, lactate dehydrogenase B (LDHB), catalyzing the conversion of lactate and NAD+ to pyruvate, NADH and H+, controls lysosomal acidification, vesicle maturation, and intracellular proteolysis. LDHB activity is necessary for basal autophagy and cancer cell proliferation not only in oxidative cancer cells but also in glycolytic cancer cells.
langue originale | Anglais |
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Pages (de - à) | 418-431 |
Nombre de pages | 14 |
journal | Cancer Cell |
Volume | 30 |
Numéro de publication | 3 |
Les DOIs | |
Etat de la publication | Publié - 2016 |
Empreinte digitale
Examiner les sujets de recherche de « Lactate Dehydrogenase B Controls Lysosome Activity and Autophagy in Cancer ». Ensemble, ils forment une empreinte digitale unique.Équipement
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Microscopie électronique
Colomer, J.-F. (!!Manager) & Charlier, C. (!!Operator)
Plateforme technologique Morphologie, imagerieEquipement/installations: Equipement
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Morphologie - Imagerie
Cecchet, F. (!!Manager) & Renard, H.-F. (!!Manager)
Plateforme technologique Morphologie, imagerieEquipement/installations: Plateforme technolgique