Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs

Calcium (Ca) and phosphorus (P) homeostasis is maintained by several regulators, including vitamin D and fibroblast growth factor 23 (FGF23), and their tissue-specific activation and signaling cascades. In this study, the tissue-wide expression of key genes linked to vitamin D metabolism (<i>C...

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Main Authors: Maruf Hasan, Michael Oster, Henry Reyer, Siriluck Ponsuksili, Eduard Murani, Petra Wolf, Dagmar-Christiane Fischer, Klaus Wimmers
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Metabolites
Subjects:
Online Access:https://www.mdpi.com/2218-1989/12/8/729
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author Maruf Hasan
Michael Oster
Henry Reyer
Siriluck Ponsuksili
Eduard Murani
Petra Wolf
Dagmar-Christiane Fischer
Klaus Wimmers
author_facet Maruf Hasan
Michael Oster
Henry Reyer
Siriluck Ponsuksili
Eduard Murani
Petra Wolf
Dagmar-Christiane Fischer
Klaus Wimmers
author_sort Maruf Hasan
collection DOAJ
description Calcium (Ca) and phosphorus (P) homeostasis is maintained by several regulators, including vitamin D and fibroblast growth factor 23 (FGF23), and their tissue-specific activation and signaling cascades. In this study, the tissue-wide expression of key genes linked to vitamin D metabolism (<i>CYP2R1</i>, <i>CYP27A1</i>, <i>CYP27B1</i>, <i>CYP24A1</i>, <i>GC</i>, <i>VDR</i>) and FGF23 signaling (<i>FGF23</i>, <i>FGFR1-4</i>, <i>KL</i>) were investigated in pigs fed conventional (trial 1) and divergent P diets (trial 2). The tissue set comprised kidney, liver, bone, lung, aorta, and gastrointestinal tract sections. Expression patterns revealed that non-renal tissues and cells (NRTC) express genes to form active vitamin D [1,25(OH)<sub>2</sub>D<sub>3</sub>] according to site-specific requirements. A low P diet resulted in higher serum calcitriol and increased <i>CYP24A1</i> expression in the small intestine, indicating local suppression of vitamin D signaling. A high P diet prompted increased mRNA abundances of <i>CYP27B1</i> for local vitamin D synthesis, specifically in bone. For FGF23 signaling, analyses revealed ubiquitous expression of <i>FGFR1-4</i>, whereas <i>KL</i> was expressed in a tissue-specific manner. Dietary P supply did not affect skeletal <i>FGF23</i>; however, <i>FGFR4</i> and <i>KL</i> showed increased expression in bone at high P supply, suggesting regulation to balance mineralization. Specific NRTC responses influence vitamin D metabolism and P homeostasis, which should be considered for a thrifty but healthy P supply.
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spelling doaj.art-8cb03ce2800742aa9c3427d8a085f5ed2023-11-30T21:58:12ZengMDPI AGMetabolites2218-19892022-08-0112872910.3390/metabo12080729Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in PigsMaruf Hasan0Michael Oster1Henry Reyer2Siriluck Ponsuksili3Eduard Murani4Petra Wolf5Dagmar-Christiane Fischer6Klaus Wimmers7Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, GermanyResearch Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, GermanyResearch Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, GermanyResearch Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, GermanyResearch Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, GermanyFaculty of Agricultural and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6b, 18059 Rostock, GermanyDepartment of Pediatrics, Rostock University Hospital, Ernst-Heydemann-Str. 8, 18057 Rostock, GermanyResearch Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, GermanyCalcium (Ca) and phosphorus (P) homeostasis is maintained by several regulators, including vitamin D and fibroblast growth factor 23 (FGF23), and their tissue-specific activation and signaling cascades. In this study, the tissue-wide expression of key genes linked to vitamin D metabolism (<i>CYP2R1</i>, <i>CYP27A1</i>, <i>CYP27B1</i>, <i>CYP24A1</i>, <i>GC</i>, <i>VDR</i>) and FGF23 signaling (<i>FGF23</i>, <i>FGFR1-4</i>, <i>KL</i>) were investigated in pigs fed conventional (trial 1) and divergent P diets (trial 2). The tissue set comprised kidney, liver, bone, lung, aorta, and gastrointestinal tract sections. Expression patterns revealed that non-renal tissues and cells (NRTC) express genes to form active vitamin D [1,25(OH)<sub>2</sub>D<sub>3</sub>] according to site-specific requirements. A low P diet resulted in higher serum calcitriol and increased <i>CYP24A1</i> expression in the small intestine, indicating local suppression of vitamin D signaling. A high P diet prompted increased mRNA abundances of <i>CYP27B1</i> for local vitamin D synthesis, specifically in bone. For FGF23 signaling, analyses revealed ubiquitous expression of <i>FGFR1-4</i>, whereas <i>KL</i> was expressed in a tissue-specific manner. Dietary P supply did not affect skeletal <i>FGF23</i>; however, <i>FGFR4</i> and <i>KL</i> showed increased expression in bone at high P supply, suggesting regulation to balance mineralization. Specific NRTC responses influence vitamin D metabolism and P homeostasis, which should be considered for a thrifty but healthy P supply.https://www.mdpi.com/2218-1989/12/8/729animal healthgene expressionmineral homeostasisnon-renal calcitriol productionpigstissue specificity
spellingShingle Maruf Hasan
Michael Oster
Henry Reyer
Siriluck Ponsuksili
Eduard Murani
Petra Wolf
Dagmar-Christiane Fischer
Klaus Wimmers
Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs
Metabolites
animal health
gene expression
mineral homeostasis
non-renal calcitriol production
pigs
tissue specificity
title Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs
title_full Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs
title_fullStr Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs
title_full_unstemmed Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs
title_short Tissue-Wide Expression of Genes Related to Vitamin D Metabolism and FGF23 Signaling following Variable Phosphorus Intake in Pigs
title_sort tissue wide expression of genes related to vitamin d metabolism and fgf23 signaling following variable phosphorus intake in pigs
topic animal health
gene expression
mineral homeostasis
non-renal calcitriol production
pigs
tissue specificity
url https://www.mdpi.com/2218-1989/12/8/729
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