Genetic defects in ciliary genes in autosomal dominant polycystic kidney disease.

World J Nephrol

Laboratory of Clinical and Molecular Genetics, Department of Paediatrics, Faculty of Medicine, Comenius University and University Children's Hospital, Bratislava 83340, Slovakia.

Published: March 2018

Aim: To evaluate the genetic defects of ciliary genes causing the loss of primary cilium in autosomal dominant polycystic kidney disease (ADPKD).

Methods: We analyzed 191 structural and functional genes of the primary cilium using next-generation sequencing analysis. We analyzed the kidney samples, which were obtained from 7 patients with ADPKD who underwent nephrectomy. Each sample contained polycystic kidney tissue and matched normal kidney tissue.

Results: In our study, we identified genetic defects in the 5 to 15 genes in each ADPKD sample. The most frequently identified defects were found in genes encoding centrosomal proteins (, , and ) and kinesin family member 19 (), which are important for ciliogenesis. In addition, pathogenic mutations in the and genes were found in all ADPKD samples. Interestingly, mutations in the genes encoding the intraflagellar transport proteins, which are the basis of animal models of ADPKD, were only rarely detected.

Conclusion: The results of our study revealed the actual state of structural ciliary genes in human ADPKD tissues and provided valuable indications for further research.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838416PMC
http://dx.doi.org/10.5527/wjn.v7.i2.65DOI Listing

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