The transcription factors Etv4 and Etv5 mediate formation of the ureteric bud tip domain during kidney development.
Signaling by the Ret receptor tyrosine kinase promotes cell movements in the Wolffian duct that give rise to the first ureteric bud tip, initiating kidney development. Although the ETS transcription factors Etv4 and Etv5 are known to be required for mouse kidney development and to act downstream of Ret, their specific functions are unclear. Here, we examine their role by analyzing the ability of Etv4 Etv5 compound mutant cells to contribute to chimeric kidneys. Etv4(-/-);Etv5(+/-) cells show a limited distribution in the caudal Wolffian duct and ureteric bud, similar to Ret(-/-) cells, revealing a cell-autonomous role for Etv4 and Etv5 in the cell rearrangements promoted by Ret. By contrast, Etv4(-/-);Etv5(-/-) cells display more severe developmental limitations, suggesting a broad role for Etv4 and Etv5 downstream of multiple signals, which are together important for Wolffian duct and ureteric bud morphogenesis.
Kuure
Satu
S
Department of Genetics and Development, Columbia University Medical Center, New York, NY 10032, USA.
Chi
Xuan
X
Lu
Benson
B
Costantini
Frank
F
D000818:Animals; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D007668:Kidney / Q000254:growth & development* / Q000378:metabolism; D051379:Mice; D038081:Organogenesis / Q000235:genetics; D050783:Proto-Oncogene Proteins c-ets / Q000235:genetics / Q000378:metabolism*; D051096:Proto-Oncogene Proteins c-ret / Q000235:genetics / Q000378:metabolism*; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*; D014513:Ureter / Q000378:metabolism*
D004268:DNA-Binding Proteins; C540571:Etv4 protein, mouse; C513242:Etv5 protein, mouse; D050783:Proto-Oncogene Proteins c-ets; D014157:Transcription Factors; D051096:Proto-Oncogene Proteins c-ret
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