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Article

Up-Regulation of Fibroblast Growth Factor 23 Gene Expression in UMR106 Osteoblast-like Cells with Reduced Viability

1
Department of Physiology, University of Hohenheim, 70599 Stuttgart, Germany
2
Department of Hematology and Oncology, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: T.K.S. Kumar
Cells 2022, 11(1), 40; https://doi.org/10.3390/cells11010040
Received: 9 August 2021 / Revised: 17 December 2021 / Accepted: 20 December 2021 / Published: 23 December 2021
(This article belongs to the Collection Fibroblast Growth Factors: Pathophysiology and Therapeutics)
Fibroblast growth factor 23 (FGF23) controls vitamin D and phosphate homeostasis in the kidney and has additional paracrine effects elsewhere. As a biomarker, its plasma concentration is associated with progression of inflammatory, renal, and cardiovascular diseases. Major stimuli of FGF23 synthesis include active vitamin D and inflammation. Antineoplastic chemotherapy treats cancer by inducing cellular damage ultimately favoring cell death (apoptosis and necrosis) and causing inflammation. Our study explored whether chemotherapeutics and other apoptosis inducers impact on Fgf23 expression. Experiments were performed in osteoblast-like UMR106 cells, Fgf23 gene expression and protein synthesis were determined by qRT-PCR and ELISA, respectively. Viability was assessed by MTT assay and NFκB activity by Western Blotting. Antineoplastic drugs cisplatin and doxorubicin as well as apoptosis inducers procaspase-activating compound 1 (PAC-1), a caspase 3 activator, and serum depletion up-regulated Fgf23 transcripts while reducing cell proliferation and viability. The effect of cisplatin on Fgf23 transcription was paralleled by Il-6 up-regulation and NFκB activation and attenuated by Il-6 and NFκB signaling inhibitors. To conclude, cell viability-decreasing chemotherapeutics as well as apoptosis stimulants PAC-1 and serum depletion up-regulate Fgf23 gene expression. At least in part, Il-6 and NFκB may contribute to this effect. View Full-Text
Keywords: cisplatin; apoptosis; 1,25(OH)2D3; klotho; inflammation cisplatin; apoptosis; 1,25(OH)2D3; klotho; inflammation
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MDPI and ACS Style

Münz, S.; Feger, M.; Edemir, B.; Föller, M. Up-Regulation of Fibroblast Growth Factor 23 Gene Expression in UMR106 Osteoblast-like Cells with Reduced Viability. Cells 2022, 11, 40. https://doi.org/10.3390/cells11010040

AMA Style

Münz S, Feger M, Edemir B, Föller M. Up-Regulation of Fibroblast Growth Factor 23 Gene Expression in UMR106 Osteoblast-like Cells with Reduced Viability. Cells. 2022; 11(1):40. https://doi.org/10.3390/cells11010040

Chicago/Turabian Style

Münz, Sina, Martina Feger, Bayram Edemir, and Michael Föller. 2022. "Up-Regulation of Fibroblast Growth Factor 23 Gene Expression in UMR106 Osteoblast-like Cells with Reduced Viability" Cells 11, no. 1: 40. https://doi.org/10.3390/cells11010040

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