Linked Life Data

2415310

Source:http://linkedlifedata.com/resource/pubmed/id/2415310

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1986-1-21
pubmed:abstractText
During the differentiation of skeletal muscle, mononucleate myoblasts proliferate, then stop replicating, spontaneously fuse, and express a large number of genes which encode the muscle phenotype. We have used monoclonal antibodies specific for 5-bromodeoxyuridine, myoactin, and equine alpha 2-macroglobulin to follow and establish the sequence of events that surround the transition from a replicating to a differentiating population. Triple-label immunofluorescence microscopy was used to visualize the changes in DNA synthesis, formation of myoactin fibers, and the cessation of endocytosis of alpha 2-macroglobulin that accompany myogenesis. Our results indicate that myoblasts cease actively endocytosing alpha 2-macroglobulin after stopping DNA synthesis but prior to fusion. Formation of myoactin fibers rarely occurs in mononucleate myoblasts and only in post-mitotic cells, but they are common in multinucleate myotubes. We suggest that the regulation of DNA synthesis is critical to normal myogenesis and that detection of incorporated BrdUrd by immunofluorescence, in conjunction with other antibodies and nucleic acid probes, is a convenient method with which to study and sequence the molecular events in single cells as they relate to the transition in DNA synthesis that accompanies differentiation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0196-4763
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
570-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
DNA replication and differentiation in rat myoblasts studied with monoclonal antibodies against 5-bromodeoxyuridine, actin, and alpha 2-macroglobulin.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't