Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6374
pubmed:dateCreated
1992-6-11
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
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
357
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
158-61
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Regulation of vertebrate left-right asymmetries by extracellular matrix.
pubmed:affiliation
Department of Cell Biology and Neuroanatomy, University of Minnesota, Minneapolis 55455.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't