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Updated: Feb 11, 2026

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease
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Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Published on: February 3, 2012

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Pilot Study of the Occurrence of Somatic Mutations in Ciliary Signalling Pathways as a Contribution Factor to

K Skalická1, G Hrčková1, A Vaská1

  • 1Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava, Slovakia.

Folia Biologica
|April 25, 2018
PubMed

Insights

Autosomal-dominant polycystic kidney disease (ADPKD) involves kidney cysts and end-stage renal disease. This study found unique mutation profiles in ciliary signaling pathways, identifying key genes like NCOR2 and LRP2 for potential ADPKD treatments.

Area of Science:

  • Nephrology
  • Genetics
  • Molecular Biology

Background:

  • Autosomal-dominant polycystic kidney disease (ADPKD) is a common inherited cause of end-stage renal disease, characterized by kidney cyst formation.
  • Recent research suggests that targeting primary cilia and polycystins may slow ADPKD progression, but the underlying genetic mechanisms remain unclear.

Purpose of the Study:

  • To investigate the mutation profiles within ciliary signaling pathways in renal epithelial cells of ADPKD patients.
  • To identify specific genes and signaling molecules implicated in ADPKD cystogenesis.

Main Methods:

  • Targeted next-generation sequencing of 110 genes involved in Sonic Hedgehog, Hippo, Notch, Wnt, and planar cell polarity (PCP) signaling pathways.
  • Analysis of 10 formalin-fixed, paraffin-embedded (FFPE) tissue samples from ADPKD patients.

Main Results:

  • Each ADPKD sample exhibited a distinct mutation profile with pathogenic variants in 8-11 signaling pathway genes.
  • NCOR2 and LRP2 genes showed pathogenic variants in all analyzed ADPKD samples.
  • MAML2 and FAT4 genes had variants in 80% of samples, and CELSR1 in 60%, highlighting key affected genes.

Conclusions:

  • Significant genetic heterogeneity exists in ADPKD, with specific ciliary signaling pathway mutations being prevalent.
  • NCOR2, LRP2, MAML2, FAT4, and CELSR1 are identified as potentially crucial genes in ADPKD pathogenesis.
  • These findings suggest novel therapeutic targets for ADPKD treatment by focusing on identified signaling molecules.

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