Genetic variants predisposing to increased risk of kidney stone disease

Kidney stones (KS) are common, heritable, and associated with mineral metabolism abnormalities. We used Mendelian randomization and colocalization to identify variants predicted to increase KS risk via increased serum calcium or decreased serum phosphate (odds ratios for genomic regions=4.30-13.83 per 1 standard deviation alteration) that account for 11-19% of KS due to reduced calcium-sensing receptor (CaSR)-signal transduction, increased urinary phosphate excretion, and impaired 1,25-dihydroxyvitamin D inactivation via diacylglycerol kinase delta (DGKD), solute carrier family 34 member 1 (SLC34A1), and cytochrome P450 family 24 subfamily A member 1 (CYP24A1), respectively. In silico analyses revealed that targeting CASR, DGKD, or CYP24A1 to decrease serum calcium, or SLC34A1 to increase serum phosphate may reduce KS risk, and in vitro studies demonstrated that positive CaSR-allosteric modulation ameliorates CaSR-signal transduction impaired by reduced DGK{delta} expression or KS-associated DGKD missense variants. These studies suggest that genotyping individuals with KS may facilitate personalized risk stratification and pharmacomodulation.

• Publication year

  2024

• Venue

  medRxiv

• Publication date

  2024-06-11

• Fields of study

  Biology, Medicine

• Identifiers
  DOI 10.1101/2024.06.07.24308490
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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