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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
3
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pubmed:dateCreated |
2006-3-2
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pubmed:abstractText |
Congenital malformations of the urinary tract are a major cause of renal failure in children and young adults. They are often caused by physical obstruction or by functional impairment of the peristaltic machinery of the ureter. The underlying molecular and cellular defects are, however, poorly understood. Here we present the phenotypic characterization of a new mouse model for congenital ureter malformation that revealed the molecular pathway important for the formation of the functional mesenchymal coating of the ureter. The gene encoding the T-box transcription factor Tbx18 was expressed in undifferentiated mesenchymal cells surrounding the distal ureter stalk. In Tbx18-/- mice, prospective ureteral mesenchymal cells largely dislocalized to the surface of the kidneys. The remaining ureteral mesenchymal cells showed reduced proliferation and failed to differentiate into smooth muscles, but instead became fibrous and ligamentous tissue. Absence of ureteral smooth muscles resulted in a short hydroureter and hydronephrosis at birth. Our analysis also showed that the ureteral mesenchyme derives from a distinct cell population that is separated early in kidney development from that of other mesenchymal cells of the renal system.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/16511601-10514386,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16511601-10535317,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16511601-10572052,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/16511601-8666231,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16511601-8865236,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/16511601-992959
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
AIM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0021-9738
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
116
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
663-74
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:16511601-Animals,
pubmed-meshheading:16511601-Animals, Newborn,
pubmed-meshheading:16511601-Basic Helix-Loop-Helix Transcription Factors,
pubmed-meshheading:16511601-Cell Differentiation,
pubmed-meshheading:16511601-Disease Models, Animal,
pubmed-meshheading:16511601-Heterozygote Detection,
pubmed-meshheading:16511601-Hydronephrosis,
pubmed-meshheading:16511601-Mesoderm,
pubmed-meshheading:16511601-Mice,
pubmed-meshheading:16511601-Mice, Knockout,
pubmed-meshheading:16511601-Organ Culture Techniques,
pubmed-meshheading:16511601-Phenotype,
pubmed-meshheading:16511601-T-Box Domain Proteins,
pubmed-meshheading:16511601-Transcription Factors,
pubmed-meshheading:16511601-Ureter,
pubmed-meshheading:16511601-Urothelium
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pubmed:year |
2006
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pubmed:articleTitle |
Tbx18 regulates the development of the ureteral mesenchyme.
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pubmed:affiliation |
Institut für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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