Metabolic Remodeling in Bioenergetic Disorders and Cancer .- Tumor Cell Complexity and Metabolic Flexibility.- Autophagy and Tumor Cell Metabolism.-Tumour Hypoxia and the Hypoxia-Inducible Transcription.- MYC Regulation of Metabolism and Cancer.- Pyruvate Kinase M2 A Metabolic Tuner.- Role of the Pentose Phosphate Pathway in Tumour Metabolism.- Enzymes of the Tumour Metabolome in Diagnostic Applications.- Contribution of pH Alterations to the Tumor Microenvironment.- Mitochondrial Mutations in Cancer Progression Causative, Bystanders, or Modifiers of Tumorigenesis The Relevance of the Mitochondrial H-ATP Synthase.- Canceromics Studies Unravel Tumor's Glutamine Addiction.- Essential Role of Mitochondria in Pyrimidine Metabolism.- Metabolic Fluxes in Cancer Metabolism.- Targeted 13C-Labeled Tracer Fate Associations for Drug Efficacy Testing in Cancer.