The murine Fgfrl1 receptor is essential for the development of the metanephric kidney

Gerber, Simon D; Steinberg, Florian; Beyeler, Michael; Villiger, Peter M; Trueb, Beat (2009). The murine Fgfrl1 receptor is essential for the development of the metanephric kidney. Developmental biology, 335(1), pp. 106-19. San Diego, Calif.: Elsevier 10.1016/j.ydbio.2009.08.019

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Fgfrl1 is a novel member of the fibroblast growth factor receptor family. Its extracellular domain resembles the four conventional Fgfrs, while its intracellular domain lacks the tyrosine kinase domain necessary for Fgf mediated signal transduction. During embryonic development Fgfrl1 is expressed in the musculoskeletal system, in the lung, the pancreas and the metanephric kidney. Targeted disruption of the Fgfrl1 gene leads to the perinatal death of the mice due to a hypoplastic diaphragm, which is unable to inflate the lungs. Here we show that Fgfrl1-/- embryos also fail to develop the metanephric kidney. While the rest of the urogenital system, including bladder, ureter and sexual organs, develops normally, a dramatic reduction of ureteric branching morphogenesis and a lack of mesenchymal-to-epithelial transition in the nephrogenic mesenchyme result in severe renal dysgenesis. The failure of nephron induction might be explained by the absence of the tubulogenic markers Wnt4, Fgf8, Pax8 and Lim1 at E12.5 of the mutant animals. We also observed a loss of Pax2 positive nephron precursor cells and an increase of apoptosis in the cortical zone of the remnant kidney. Fgfrl1 is therefore essential for mesenchymal differentiation in the early steps of nephrogenesis.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Rheumatology and Immunology 04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Rheumatologie 04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Rheumatologie
UniBE Contributor:	Gerber, Simon (B), Steinberg, Florian, Beyeler, Michael, Villiger, Peter Matthias, Trueb, Beat
ISSN:	0012-1606
Publisher:	Elsevier
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 15:11
Last Modified:	29 Mar 2023 23:33
Publisher DOI:	10.1016/j.ydbio.2009.08.019
PubMed ID:	19715689
Web of Science ID:	000271080300009
URI:	https://boris.unibe.ch/id/eprint/31405 (FactScience: 195912)