Osteoporosis, bone & mineral

3′ Untranslated Region Structural Elements in CYP24A1 Are Associated With Infantile Hypercalcemia Type 1

J Bone Miner ResPublished Mechanistic study

Authors' conclusion

Our experiments showed that mRNA misfolding driven by these 3' UTR sequence-dependent structural elements was associated with normal 25OHD but abnormal 1,25(OH)2 D catabolism.

Study context

Population
Patients from metabolic and stone clinics with a single abnormality of no obvious cause or a combination of hypercalcemia, hypercalciuria and nephrolithiasis
Participants
47 patients
Outcome
Molecular mechanisms of apparent HCINF1 without CYP24A1 coding mutation
Methodological detailsLC-MS/MS of serum vitamin D metabolites, direct sequencing, bioinformatics, CRISPR-Cas9 in vitro model, CRISPR-Cas9 in vitro mutant model developed for future CYP24A1 studies
  • LC-MS/MS of serum vitamin D metabolites
  • Direct sequencing
  • Bioinformatics
  • CRISPR-Cas9 in vitro model
  • CRISPR-Cas9 in vitro mutant model developed for future CYP24A1 studies

Main finding

As reported in the abstract

Patients with profiles characteristic of altered CYP24A1 function but no protein-coding CYP24A1 mutations
6

Original publication

3′ Untranslated Region Structural Elements in CYP24A1 Are Associated With Infantile Hypercalcemia Type 1. J Bone Miner Res. Published 23 January 2023. doi:10.1002/jbmr.4769

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