Whole-exome sequencing identifies causative mutations in families with congenital anomalies of the kidney and urinary tract

Amelie T. Van Der Ven, Dervla M. Connaughton, Hadas Ityel, Nina Mann, Makiko Nakayama, Jing Chen, Asaf Vivante, Daw Yang Hwang, Julian Schulz, Daniela A. Braun, Johanna Magdalena Schmidt, David Schapiro, Ronen Schneider, Jillian K. Warejko, Ankana Daga, Amar J. Majmundar, Weizhen Tan, Tilman Jobst-Schwan, Tobias Hermle, Eugen WidmeierShazia Ashraf, Ali Amar, Charlotte A. Hoogstraaten, Hannah Hugo, Thomas M. Kitzler, Franziska Kause, Caroline M. Kolvenbach, Rufeng Dai, Leslie Spaneas, Kassaundra Amann, Deborah R. Stein, Michelle A. Baum, Michael J.G. Somers, Nancy M. Rodig, Michael A. Ferguson, Avram Z. Traum, Ghaleb H. Daouk, Radovan Bogdanovic, Natasa Stajic, Neveen A. Soliman, Jameela A. Kari, Sherif El Desoky, Hanan M. Fathy, Danko Milosevic, Muna Al-Saffar, Hazem S. Awad, Loai A. Eid, Aravind Selvin, Prabha Senguttuvan, Simone Sanna-Cherchi, Heidi L. Rehm, Daniel G. MacArthur, Monkol Lek, Kristen M. Laricchia, Michael W. Wilson, Shrikant M. Mane, Richard P. Lifton, Richard S. Lee, Stuart B. Bauer, Weining Lu, Heiko M. Reutter, Velibor Tasic, Shirlee Shril, Friedhelm Hildebrandt

Research output: Contribution to journalArticlepeer-review

135 Citations (Scopus)

Abstract

Background Congenital anomalies of the kidney and urinary tract (CAKUT) are the most prevalent cause of kidney disease in the first three decades of life. Previous gene panel studies showed monogenic causation in up to 12% of patients with CAKUT. Methods We applied whole-exome sequencing to analyze the genotypes of individuals from 232 families with CAKUT, evaluating for mutations in single genes known to cause human CAKUT and genes known to cause CAKUT in mice. In consanguineous or multiplex families, we additionally performed a search for novel monogenic causes of CAKUT. Results In 29 families (13%), we detected a causative mutation in a known gene for isolated or syndromic CAKUT that sufficiently explained the patient's CAKUT phenotype. In three families (1%), we detected a mutation in a gene reported to cause a phenocopy of CAKUT. In 15 of 155 families with isolated CAKUT, we detected deleterious mutations in syndromic CAKUT genes. Our additional search for novel monogenic causes of CAKUT in consanguineous and multiplex families revealed a potential single, novel monogenic CAKUT gene in 19 of 232 families (8%). Conclusions We identified monogenic mutations in a known human CAKUT gene or CAKUT phenocopy gene as the cause of disease in 14% of the CAKUT families in this study. Whole-exome sequencing provides an etiologic diagnosis in a high fraction of patients with CAKUT and will provide a new basis for the mechanistic understanding of CAKUT.

Original languageEnglish
Pages (from-to)2348-2361
Number of pages14
JournalJournal of the American Society of Nephrology
Volume29
Issue number9
DOIs
Publication statusPublished - Sept 2018

ASJC Scopus subject areas

  • General Medicine

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