rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
1998-5-1
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pubmed:abstractText |
The asymmetries of internal organs are consistently oriented along the left-right axis in all vertebrates, and perturbations of left-right orientation lead to significant congenital disease. We propose a model in which a "left-right coordinator" interacts with the Spemann organizer to coordinate the evolutionarily conserved three-dimensional asymmetries in the embryo. The Vg1 cell-signaling pathway plays a central role in left-right coordinator function. Antagonists of Vg1 alter left-right development; antagonists of other members of the TGFbeta family do not. Cell-lineage directed expression of Vg1 protein can fully invert the left-right axis (situs inversus), can randomize left-right asymmetries, or can "rescue" a perturbed left-right axis in conjoined twins to normal orientation (situs solitus), indicating that Vg1 can mimic left-right coordinator activity. These are the first molecular manipulations in any vertebrate by which the left-right axis can be reliably controlled.
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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 |
http://linkedlifedata.com/resource/pubmed/chemical/Activins,
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Follistatin,
http://linkedlifedata.com/resource/pubmed/chemical/Glycoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Inhibins,
http://linkedlifedata.com/resource/pubmed/chemical/Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Transforming Growth Factor beta,
http://linkedlifedata.com/resource/pubmed/chemical/Vg1 protein, Xenopus,
http://linkedlifedata.com/resource/pubmed/chemical/Xenopus Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/noggin protein
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0092-8674
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
3
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
37-46
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9546390-Activins,
pubmed-meshheading:9546390-Animals,
pubmed-meshheading:9546390-Carrier Proteins,
pubmed-meshheading:9546390-Embryo, Nonmammalian,
pubmed-meshheading:9546390-Embryonic Induction,
pubmed-meshheading:9546390-Follistatin,
pubmed-meshheading:9546390-Gene Expression Regulation, Developmental,
pubmed-meshheading:9546390-Glycoproteins,
pubmed-meshheading:9546390-Heart,
pubmed-meshheading:9546390-Inhibins,
pubmed-meshheading:9546390-Protein Biosynthesis,
pubmed-meshheading:9546390-Proteins,
pubmed-meshheading:9546390-Signal Transduction,
pubmed-meshheading:9546390-Transforming Growth Factor beta,
pubmed-meshheading:9546390-Xenopus,
pubmed-meshheading:9546390-Xenopus Proteins
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pubmed:year |
1998
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pubmed:articleTitle |
The left-right coordinator: the role of Vg1 in organizing left-right axis formation.
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pubmed:affiliation |
Graduate Program in Molecular, Cell, Developmental Biology, and Genetics, University of Minnesota, Minneapolis 55455, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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