rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2009-12-24
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pubmed:abstractText |
Wnts are known to bind and activate multiple membrane receptors/coreceptors and to regulate dopaminergic (DA) neuron development and ventral midbrain (VM) morphogenesis. The low density lipoprotein receptor-related protein (Lrp6) is a Wnt co-receptor, yet it remains unclear whether Lrp6 is required for DA neuron development or VM morphogenesis. Lrp6 is expressed ubiquitously in the developing VM. In this study, we show that Lrp6(-/-) mice exhibit normal patterning, proliferation and cell death in the VM, but display a delay in the onset of DA precursor differentiation. A transient 50% reduction in tyrosine hydroxylase-positive DA neurons and in the expression of DA markers such as Nurr1 and Pitx3, as well as a defect in midbrain morphogenesis was detected in the mutant embryos at embryonic day 11.5. Our results, therefore, suggest a role for Lrp6 in the onset of DA neuron development in the VM as well as a role in midbrain morphogenesis.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
1097-0177
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pubmed:author |
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pubmed:copyrightInfo |
(c) 2009 Wiley-Liss, Inc.
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pubmed:issnType |
Electronic
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pubmed:volume |
239
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
211-21
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pubmed:meshHeading |
pubmed-meshheading:19795519-Animals,
pubmed-meshheading:19795519-Bromodeoxyuridine,
pubmed-meshheading:19795519-Cell Differentiation,
pubmed-meshheading:19795519-Dopamine,
pubmed-meshheading:19795519-Genotype,
pubmed-meshheading:19795519-Homeodomain Proteins,
pubmed-meshheading:19795519-Immunohistochemistry,
pubmed-meshheading:19795519-In Situ Hybridization,
pubmed-meshheading:19795519-Mesencephalon,
pubmed-meshheading:19795519-Mice,
pubmed-meshheading:19795519-Mice, Knockout,
pubmed-meshheading:19795519-Microscopy, Confocal,
pubmed-meshheading:19795519-Morphogenesis,
pubmed-meshheading:19795519-Neurons,
pubmed-meshheading:19795519-Nuclear Receptor Subfamily 4, Group A, Member 2,
pubmed-meshheading:19795519-Transcription Factors,
pubmed-meshheading:19795519-Tyrosine 3-Monooxygenase
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pubmed:year |
2010
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pubmed:articleTitle |
Delayed dopaminergic neuron differentiation in Lrp6 mutant mice.
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pubmed:affiliation |
Laboratory of Molecular Neurobiology, Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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