FGF23 signaling in hypophosphatemic rickets and related disorders (WP4790)
Homo sapiens
Hypophosphatemic rickets refers to a group of rare genetic disorders characterised by clinical and radiographical features similar to rickets but caused by abnormalities in phosphate metabolism. The most common form, X-linked hypophosphatemic rickets (XLH), is caused by inactivating mutations in the PHEX gene, which encodes the phosphate-regulating neutral endopeptidase PHEX. Patients with XLH have elevated levels of fibroblast growth factor 23 (FGF23), which is thought to mediate many of the clinical manifestations of the disease. Elevated FGF23 levels have also been observed in other hypophosphatemic disorders, yet the role of FGF23 in the pathophysiology of these disorders is incompletely understood. This pathway illustrates hypophosphatemic and autocrine/paracrine molecular pathways that have been proposed to link FGF23 to the bone abnormalities observed in XLH and related disorders. For further details, see [https://www.ncbi.nlm.nih.gov/pubmed/30808384]
Authors
Ritchie Lee , Andreas Zankl , Kristina Hanspers , Eric Weitz , and Egon WillighagenActivity
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Organisms
Homo sapiensCommunities
Skeletal DysplasiaAnnotations
Disease Ontology
Pfeiffer syndrome achondroplasia rickets childhood hypophosphatasia Muenke Syndrome hypochondroplasia X-linked dominant hypophosphatemic rickets adult hypophosphatasia Crouzon syndromeCell Type Ontology
osteoblastPathway Ontology
altered fibroblast growth factor 23 signaling pathwayReferences
- FGF23 and its role in X-linked hypophosphatemia-related morbidity. Beck-Nielsen SS, Mughal Z, Haffner D, Nilsson O, Levtchenko E, Ariceta G, et al. Orphanet J Rare Dis. 2019 Feb 26;14(1):58. PubMed Europe PMC Scholia