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The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Fibroblast Growth Factor 23 Is a Counter-Regulatory Phosphaturic Hormone for Vitamin D

Liu, Shiguang, Tang, Wen, Zhou, Jianping, Stubbs, Jason R., Luo, Qiang, Pi, Min, Quarles, L. Darryl·2006·Journal of the American Society of Nephrology

Abstract

The regulation of the phosphaturic factor fibroblast growth factor 23 (FGF23) is not well understood. It was found that administration of 1,25-dihydroxyvitamin D(3) (1,25[OH](2)D(3)) to mice rapidly increased serum FGF23 concentrations from a basal level of 90.6 +/- 8.1 to 213.8 +/- 14.6 pg/ml at 8 h (mean +/- SEM; P < 0.01) and resulted in a four-fold increase in FGF23 transcripts in bone, the predominate site of FGF23 expression. In the Hyp-mouse homologue of X-linked hypophosphatemic rickets, administration of 1,25(OH)(2)D(3) further increased circulating FGF23 levels. In Gcm2 null mice, low 1,25(OH)(2)D(3) levels were associated with a three-fold reduction in FGF23 levels that were increased by administration of 1,25(OH)(2)D(3). In osteoblast cell cultures, 1,25(OH)(2)D(3) but not calcium, phosphate, or parathyroid hormone stimulated FGF23 mRNA levels and resulted in a dose-dependent increase in FGF23 promoter activity. Overexpression of a dominant negative vitamin D receptor inhibited 1,25(OH)(2)D(3) stimulation of FGF23 promoter activity, and mutagenesis of the FGF23 promoter identified a vitamin D-responsive element (-1180 GGAACTcagTAACCT -1156) that is responsible for the vitamin D effects. These data suggest that 1,25(OH)(2)D(3) is an important regulator of FGF23 production by osteoblasts in bone. The physiologic role of FGF23 may be to act as a counterregulatory phosphaturic hormone to maintain phosphate homeostasis in response to vitamin D.

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Authors
Liu, S., Tang, W., Zhou, J., Stubbs, J. R., Luo, Q., Pi, M., & Quarles, L. D.
Venue
Journal of the American Society of Nephrology
Published
2006-05
Volume
17
Issue
5
Pages
1305-1315
ISSN
1046-6673 (ISSN-L)
OpenAlex
W2167092665
Cited by
642
References
2
FWCI
18.91
Type
journal article
Language
en
Open access
closed

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