title: Pheochromocytoma: The First Metabolic Endocrine Cancer.
abstract: Dysregulated metabolism is one of the key characteristics of cancer cells. The most prominent alterations are present during regulation of cell respiration, which leads to a switch from oxidative phosphorylation to aerobic glycolysis. This metabolic shift results in activation of numerous signaling and metabolic pathways supporting cell proliferation and survival. Recent progress in genetics and metabolomics has allowed us to take a closer look at the metabolic changes present in pheochromocytomas (PHEO) and paragangliomas (PGL). These neuroendocrine tumors often exhibit dysregulation of mitochondrial metabolism, which is driven by mutations in genes encoding Krebs cycle enzymes or by activation of hypoxia signaling. Present metabolic changes are involved in processes associated with tumorigenesis, invasiveness, metastasis, and resistance to various cancer therapies. In this review, we discuss the metabolic nature of PHEOs/PGLs and how unveiling the metabolic disturbances present in tumors could lead to identification of new biomarkers and personalized cancer therapies. Clin Cancer Res; 22(20); 5001-11. ©2016 AACR SEE ALL ARTICLES IN THIS CCR FOCUS SECTION, "ENDOCRINE CANCERS REVISING PARADIGMS".
authors.affiliation: Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland. First Department of Internal Medicine, Medical Faculty of P.J. Šafárik University in Košice, Košice, Slovakia.
authors.forename: Ivana
authors.initials: I
authors.lastname: Jochmanova
authors.affiliation: Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland. karel@mail.nih.gov.
authors.forename: Karel
authors.initials: K
authors.lastname: Pacak
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000235:genetics / Q000473:pathology*; D015687:Cell Hypoxia / Q000235:genetics; D002952:Citric Acid Cycle / Q000235:genetics / Q000502:physiology*; D005973:Glutamine / Q000378:metabolism; D006019:Glycolysis / Q000502:physiology*; D006801:Humans; D008928:Mitochondria / Q000378:metabolism*; D010235:Paraganglioma / Q000235:genetics / Q000473:pathology*; D010673:Pheochromocytoma / Q000235:genetics / Q000473:pathology*
chemical_list: D005973:Glutamine