Calcium kidney stones are associated with a haplotype of the calcium-sensing receptor gene regulatory region

Giuseppe Vezzoli, Annalisa Terranegra, Teresa Arcidiacono, Giovanni Gambaro, Luciano Milanesi, Ettore Mosca, Laura Soldati

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Background. Calcium-sensing receptor gene (CaSR) is a candidate to explain susceptibility to calcium kidney stones. Thus, we studied CaSR gene single-nucleotide polymorphisms (SNPs) and haplotypes associated with stones.Methods. Four hundred and sixty-three calcium stone formers and 213 healthy controls were genotyped for 21 SNPs mapping the whole CaSR gene. CaSR gene structure was studied. SNPs and haplotypes were analysed for association with stones.Results. Three haplotype blocks were identified in the CaSR gene. The first block was characterized by six SNPs and included gene promoters. The rs7652589 and rs1501899 SNPs and the CATTCA haplotype of the first block were significantly more frequent in normocitraturic calcium kidney stone formers than controls. The risk of stones was increased in normocitraturic homozygous patients and heterozygotes for the CATTCA haplotype. The rate of stones was higher in stone formers with the CATTCA haplotype. In a three-generation family, calcium stones were associated with the CATTCA haplotype. The bioinformatic analysis identified a new site for the octamer-binding transcription factor 1 in the presence of the variant alleles at the rs7652589 and rs1501899 SNPs. This transcription factor may downregulate the transcription of vitamin D-dependent genes and the CaSR expression.Conclusion. SNPs and CATTCA haplotype of the CaSR gene first block is associated with kidney stones in normocitraturic patients.

Original languageEnglish
Pages (from-to)2245-2252
Number of pages8
JournalNephrology Dialysis Transplantation
Volume25
Issue number7
DOIs
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Calcium-Sensing Receptors
Kidney Calculi
Nucleic Acid Regulatory Sequences
Haplotypes
Calcium
Single Nucleotide Polymorphism
Genes
Nucleotide Mapping
Octamer Transcription Factor-1
Heterozygote
Computational Biology
Vitamin D

Keywords

  • calcium-sensing receptor
  • citraturia
  • gene expression
  • kidney stone
  • transcription factors

ASJC Scopus subject areas

  • Nephrology
  • Transplantation

Cite this

Calcium kidney stones are associated with a haplotype of the calcium-sensing receptor gene regulatory region. / Vezzoli, Giuseppe; Terranegra, Annalisa; Arcidiacono, Teresa; Gambaro, Giovanni; Milanesi, Luciano; Mosca, Ettore; Soldati, Laura.

In: Nephrology Dialysis Transplantation, Vol. 25, No. 7, 2010, p. 2245-2252.

Research output: Contribution to journalArticle

Vezzoli, Giuseppe ; Terranegra, Annalisa ; Arcidiacono, Teresa ; Gambaro, Giovanni ; Milanesi, Luciano ; Mosca, Ettore ; Soldati, Laura. / Calcium kidney stones are associated with a haplotype of the calcium-sensing receptor gene regulatory region. In: Nephrology Dialysis Transplantation. 2010 ; Vol. 25, No. 7. pp. 2245-2252.
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N2 - Background. Calcium-sensing receptor gene (CaSR) is a candidate to explain susceptibility to calcium kidney stones. Thus, we studied CaSR gene single-nucleotide polymorphisms (SNPs) and haplotypes associated with stones.Methods. Four hundred and sixty-three calcium stone formers and 213 healthy controls were genotyped for 21 SNPs mapping the whole CaSR gene. CaSR gene structure was studied. SNPs and haplotypes were analysed for association with stones.Results. Three haplotype blocks were identified in the CaSR gene. The first block was characterized by six SNPs and included gene promoters. The rs7652589 and rs1501899 SNPs and the CATTCA haplotype of the first block were significantly more frequent in normocitraturic calcium kidney stone formers than controls. The risk of stones was increased in normocitraturic homozygous patients and heterozygotes for the CATTCA haplotype. The rate of stones was higher in stone formers with the CATTCA haplotype. In a three-generation family, calcium stones were associated with the CATTCA haplotype. The bioinformatic analysis identified a new site for the octamer-binding transcription factor 1 in the presence of the variant alleles at the rs7652589 and rs1501899 SNPs. This transcription factor may downregulate the transcription of vitamin D-dependent genes and the CaSR expression.Conclusion. SNPs and CATTCA haplotype of the CaSR gene first block is associated with kidney stones in normocitraturic patients.

AB - Background. Calcium-sensing receptor gene (CaSR) is a candidate to explain susceptibility to calcium kidney stones. Thus, we studied CaSR gene single-nucleotide polymorphisms (SNPs) and haplotypes associated with stones.Methods. Four hundred and sixty-three calcium stone formers and 213 healthy controls were genotyped for 21 SNPs mapping the whole CaSR gene. CaSR gene structure was studied. SNPs and haplotypes were analysed for association with stones.Results. Three haplotype blocks were identified in the CaSR gene. The first block was characterized by six SNPs and included gene promoters. The rs7652589 and rs1501899 SNPs and the CATTCA haplotype of the first block were significantly more frequent in normocitraturic calcium kidney stone formers than controls. The risk of stones was increased in normocitraturic homozygous patients and heterozygotes for the CATTCA haplotype. The rate of stones was higher in stone formers with the CATTCA haplotype. In a three-generation family, calcium stones were associated with the CATTCA haplotype. The bioinformatic analysis identified a new site for the octamer-binding transcription factor 1 in the presence of the variant alleles at the rs7652589 and rs1501899 SNPs. This transcription factor may downregulate the transcription of vitamin D-dependent genes and the CaSR expression.Conclusion. SNPs and CATTCA haplotype of the CaSR gene first block is associated with kidney stones in normocitraturic patients.

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