title: Ironing out the cross talk between FGF23 and inflammation.
abstract: The bone-secreted hormone fibroblast growth factor 23 (FGF23) has an essential role in phosphate homeostasis by regulating expression of the kidney proximal tubule sodium-phosphate cotransporters as well as parathyroid hormone levels. Induction of FGF23 early in chronic kidney disease (CKD) helps to maintain normal phosphorous levels. However, high FGF23 levels become pathological as kidney disease progresses and are associated with an increased risk of CKD progression, cardiovascular events, and death. The factors responsible for increasing FGF23 levels early in CKD are unknown, but recent work has proposed a role for inflammation and disordered iron homeostasis. Notably, FGF23 has recently been shown to elicit an inflammatory response and to display immunomodulatory properties. Here, we will review emerging evidence on the cross talk between inflammation, iron, FGF23, and bone and mineral metabolism and discuss the relevance for CKD patients.
authors: Division of Nephrology and Hypertension, Department of Medicine, and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois; and.
authors: Valentin
authors: V
authors: David
authors: Division of Nephrology and Hypertension, Department of Medicine, and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois; and.
authors: Connor
authors: C
authors: Francis
authors: Nephrology Division, Program in Membrane Biology, and Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts Babitt.jodie@mgh.harvard.edu.
authors: Jodie L
authors: JL
authors: Babitt
mesh_terms: D000818:Animals; D000089703:Fibroblast Growth Factor-23; D005346:Fibroblast Growth Factors / Q000378:metabolism*; D006706:Homeostasis / Q000502:physiology*; D006801:Humans; D007249:Inflammation / Q000378:metabolism*; D007668:Kidney / Q000378:metabolism; D010281:Parathyroid Hormone / Q000378:metabolism*; D051436:Renal Insufficiency, Chronic / Q000378:metabolism* / Q000473:pathology
chemical_list: C000717427:FGF23 protein, human; D010281:Parathyroid Hormone; D005346:Fibroblast Growth Factors; D000089703:Fibroblast Growth Factor-23
keywords: chronic kidney disease; fibroblast growth factor 23; iron; mineral metabolism