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Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6374
|
pubmed:dateCreated |
1992-6-11
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pubmed:abstractText |
The vertebrate body is organized along three geometric axes: anterior-posterior, dorsal-ventral and left-right. Left-right axis formation, displayed in heart and gut development, is the least understood, even though it has been studied for many years. In Xenopus laevis gastrulae, a fibronectin-rich extracellular matrix is deposited on the basal surface of ectoderm cells over which cardiac and visceral primordia move during development. Here I report experiments in which localized perturbation of a small patch of extracellular matrix by microsurgery was correlated with localized randomization of left-right asymmetries. Global perturbation of the extracellular matrix by microinjection of Arg-Gly-Asp peptides or heparinase into the blastocoel resulted in global randomization of left-right asymmetries. From these observations, I suggest that left-right axial information is contained in the extracellular matrix early in development and is independently transmitted to cardiac and visceral primordia.
|
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
14
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pubmed:volume |
357
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
158-61
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1579165-Amino Acid Sequence,
pubmed-meshheading:1579165-Animals,
pubmed-meshheading:1579165-Ectoderm,
pubmed-meshheading:1579165-Embryo, Nonmammalian,
pubmed-meshheading:1579165-Extracellular Matrix,
pubmed-meshheading:1579165-Fetal Tissue Transplantation,
pubmed-meshheading:1579165-Fibronectins,
pubmed-meshheading:1579165-Fluorescent Antibody Technique,
pubmed-meshheading:1579165-Functional Laterality,
pubmed-meshheading:1579165-Gastrula,
pubmed-meshheading:1579165-Molecular Sequence Data,
pubmed-meshheading:1579165-Oligopeptides,
pubmed-meshheading:1579165-Vertebrates,
pubmed-meshheading:1579165-Xenopus
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pubmed:year |
1992
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pubmed:articleTitle |
Regulation of vertebrate left-right asymmetries by extracellular matrix.
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pubmed:affiliation |
Department of Cell Biology and Neuroanatomy, University of Minnesota, Minneapolis 55455.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|