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Published in: Molecular and Cellular Pediatrics 1/2023

Open Access 01-12-2023 | Epispadia | Mini Review

Modelling human lower urinary tract malformations in zebrafish

Authors: Caroline M. Kolvenbach, Gabriel C. Dworschak, Johanna M. Rieke, Adrian S. Woolf, Heiko Reutter, Benjamin Odermatt, Alina C. Hilger

Published in: Molecular and Cellular Pediatrics | Issue 1/2023

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Abstract

Advances in molecular biology are improving our understanding of the genetic causes underlying human congenital lower urinary tract (i.e., bladder and urethral) malformations. This has recently led to the identification of the first disease-causing variants in the gene BNC2 for isolated lower urinary tract anatomical obstruction (LUTO), and of WNT3 and SLC20A1 as genes implicated in the pathogenesis of the group of conditions called bladder-exstrophy-epispadias complex (BEEC). Implicating candidate genes from human genetic data requires evidence of their influence on lower urinary tract development and evidence of the found genetic variants’ pathogenicity. The zebrafish (Danio rerio) has many advantages for use as a vertebrate model organism for the lower urinary tract. Rapid reproduction with numerous offspring, comparable anatomical kidney and lower urinary tract homology, and easy genetic manipulability by Morpholino®-based knockdown or CRISPR/Cas editing are among its advantages. In addition, established marker staining for well-known molecules involved in urinary tract development using whole-mount in situ hybridization (WISH) and the usage of transgenic lines expressing fluorescent protein under a tissue-specific promoter allow easy visualization of phenotypic abnormalities of genetically modified zebrafish. Assays to examine the functionality of the excretory organs can also be modeled in vivo with the zebrafish. The approach of using these multiple techniques in zebrafish not only enables rapid and efficient investigation of candidate genes for lower urinary tract malformations derived from human data, but also cautiously allows transferability of causality from a non-mammalian vertebrate to humans.
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Metadata
Title
Modelling human lower urinary tract malformations in zebrafish
Authors
Caroline M. Kolvenbach
Gabriel C. Dworschak
Johanna M. Rieke
Adrian S. Woolf
Heiko Reutter
Benjamin Odermatt
Alina C. Hilger
Publication date
01-12-2023
Publisher
Springer International Publishing
Keyword
Epispadia
Published in
Molecular and Cellular Pediatrics / Issue 1/2023
Electronic ISSN: 2194-7791
DOI
https://doi.org/10.1186/s40348-023-00156-4

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