Mutational analyses of UPIIIA, SHH, EFNB2, and HNF1β in persistent cloaca and associated kidney malformations

Dagan Jenkins, Maria Bitner-Glindzicz, Louise Thomasson, Sue Malcolm, Stephanie A. Warne, Sally A. Feather, Sarah E. Flanagan, Sian Ellard, Coralie Bingham, Lane Santos, Mark Henkemeyer, Andrew Zinn, Linda A. Baker, Duncan T. Wilcox, Adrian S. Woolf

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Objectives: 'Persistent cloaca' is a severe malformation affecting females in which the urinary, genital and alimentary tracts share a single conduit. Previously, a Uroplakin IIIA (UPIIIA) mutation was reported in one individual with persistent cloaca, and UPIIIA, Sonic Hedgehog (SHH), Ephrin B2 (EFNB2) and Hepatocyte Nuclear Factor 1β (HNF1β) are expressed during the normal development of organs that are affected in this condition. HNF1β mutations have been associated with uterine malformations in humans, and mutations of genes homologous to human SHH or EFNB2 cause persistent cloaca in mice. Patients and methods: We sought mutations of coding regions of UPIIIA, SHH, EFNB2 and HNF1β genes by direct sequencing in a group of 20 patients with persistent cloaca. Most had associated malformations of the upper renal tract and over half had impaired renal excretory function. The majority of patients had congenital anomalies outside the renal/genital tracts and two had the VACTERL association. Results: Apart from a previously described index case, we failed to find UPIIIA mutations, and no patient had a SHH, EFNB2 or HNF1β mutation. Conclusion: Persistent cloaca is only rarely associated with UPIIIA mutation. Despite the fact that SHH and EFNB2 are appealing candidate genes, based on their expression patterns and mutant mice phenotypes, they were not mutated in these humans with persistent cloaca. Although HNF1β mutations can perturb paramesonephric duct fusion in humans, HNF1β was not mutated in persistent cloaca.

Original languageEnglish (US)
Pages (from-to)2-9
Number of pages8
JournalJournal of Pediatric Urology
Volume3
Issue number1
DOIs
StatePublished - Feb 1 2007

    Fingerprint

Keywords

  • Bladder
  • Gene
  • Kidney
  • Mutation
  • Rectum
  • Uterus

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Urology

Cite this

Jenkins, D., Bitner-Glindzicz, M., Thomasson, L., Malcolm, S., Warne, S. A., Feather, S. A., Flanagan, S. E., Ellard, S., Bingham, C., Santos, L., Henkemeyer, M., Zinn, A., Baker, L. A., Wilcox, D. T., & Woolf, A. S. (2007). Mutational analyses of UPIIIA, SHH, EFNB2, and HNF1β in persistent cloaca and associated kidney malformations. Journal of Pediatric Urology, 3(1), 2-9. https://doi.org/10.1016/j.jpurol.2006.03.002