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Differential effects of vitamin d receptor agonists on gene expression in neonatal rat cardiomyocytes.

Publication ,  Journal Article
Wu-Wong, JR; Chen, Y-W; Nakane, M; Wolf, M
Published in: Cardiovasc Drugs Ther
June 2011

PURPOSE: Vitamin D receptor (VDR) activation is associated with cardiovascular benefits in chronic kidney disease patients, but whether VDR's hormone and prehormone exhibit similar effects requires more studies. METHODS: Neonatal rat cardiomyocytes were treated with VDR agonists (calcitriol and/or paricalcitol) and the prehormone calcidiol in the presence of aldo (1 μM). The expression of VDR target genes were determined by real-time PCR and Western blotting. The expression and activity of CYP27B1 (the enzyme responsible for converting calcidiol to calcitriol) was measured. RESULTS: Treating cells with aldo (1 μM) for 24 h significantly reduced the VDR mRNA (29%) and protein levels (>90%). Calcitriol and calcidiol induced VDR expression in the presence of aldo with EC(50) at 0.3 and 7,952 nM, respectively. Calcitriol, paricalcitol and calcidiol stimulated CYP24A1 (EC(50) at 6.4, 4.5 and 992 nM, respectively) and suppressed NPPB expression (IC(50) at 1.9, 0.1 and 210 nM, respectively) in the presence of 1 μM aldo. Neonatal rat cardiomyocytes expressed CYP27B1 and converted calcidiol to calcitriol at a low rate (~10% in 24 h). CONCLUSIONS: VDR hormone calcitriol and its analog paricalcitol exhibit more potent effects than the prehormone calcidiol in cardiomyocytes.

Duke Scholars

Published In

Cardiovasc Drugs Ther

DOI

EISSN

1573-7241

Publication Date

June 2011

Volume

25

Issue

3

Start / End Page

215 / 222

Location

United States

Related Subject Headings

  • Vitamin D3 24-Hydroxylase
  • Steroid Hydroxylases
  • Receptors, Calcitriol
  • Rats
  • Polymerase Chain Reaction
  • Humans
  • Gene Expression Regulation
  • Ergocalciferols
  • Cardiovascular System & Hematology
  • Calcitriol
 

Citation

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MLA
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Wu-Wong, J. R., Chen, Y.-W., Nakane, M., & Wolf, M. (2011). Differential effects of vitamin d receptor agonists on gene expression in neonatal rat cardiomyocytes. Cardiovasc Drugs Ther, 25(3), 215–222. https://doi.org/10.1007/s10557-011-6287-7
Wu-Wong, J Ruth, Yung-Wu Chen, Masaki Nakane, and Myles Wolf. “Differential effects of vitamin d receptor agonists on gene expression in neonatal rat cardiomyocytes.Cardiovasc Drugs Ther 25, no. 3 (June 2011): 215–22. https://doi.org/10.1007/s10557-011-6287-7.
Wu-Wong JR, Chen Y-W, Nakane M, Wolf M. Differential effects of vitamin d receptor agonists on gene expression in neonatal rat cardiomyocytes. Cardiovasc Drugs Ther. 2011 Jun;25(3):215–22.
Wu-Wong, J. Ruth, et al. “Differential effects of vitamin d receptor agonists on gene expression in neonatal rat cardiomyocytes.Cardiovasc Drugs Ther, vol. 25, no. 3, June 2011, pp. 215–22. Pubmed, doi:10.1007/s10557-011-6287-7.
Wu-Wong JR, Chen Y-W, Nakane M, Wolf M. Differential effects of vitamin d receptor agonists on gene expression in neonatal rat cardiomyocytes. Cardiovasc Drugs Ther. 2011 Jun;25(3):215–222.
Journal cover image

Published In

Cardiovasc Drugs Ther

DOI

EISSN

1573-7241

Publication Date

June 2011

Volume

25

Issue

3

Start / End Page

215 / 222

Location

United States

Related Subject Headings

  • Vitamin D3 24-Hydroxylase
  • Steroid Hydroxylases
  • Receptors, Calcitriol
  • Rats
  • Polymerase Chain Reaction
  • Humans
  • Gene Expression Regulation
  • Ergocalciferols
  • Cardiovascular System & Hematology
  • Calcitriol