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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-5-19
pubmed:abstractText
Early events in rabies virus entry into neurons were investigated in chick spinal cord-muscle cocultures. Rabies virus (CVS strain) was adsorbed to the surface of cells in the cold. At times up to 10 min of warming to 37 degrees C, virus was most intensely localized to dense swellings on the myotube surface. Texas Red-labeled alpha-bungarotoxin, which binds to nicotinic acetylcholine receptors, colocalized precisely with virus at the densities identifying these regions as neuromuscular junctions. Rabies virus also colocalized in the junctions with synapsin I, a marker for synaptic vesicles. The endosome tracers Lucifer Yellow, Texan Red-dextran, and rhodamine-wheat germ agglutinin were added to the cultures at the end of the virus adsorption period and the cultures were warmed. At 10 min, rabies virus and tracers colocalized at neuromuscular junctions and nerve terminals. At 30 min, rabies virus and tracers showed more intense fluorescence over nerve fibers and nerve cell bodies. At 60 min, nerve terminals, nerve fibers, and nerve cell bodies showed intense fluorescence and colocalization for rabies virus and tracers. LysoTracker Red, a marker for acidic compartments, colocalized with rabies virus at nerve-muscle contacts. These findings show that in nerve-muscle cocultures, the neuromuscular junction is the major site of entry into neurons. Colocalization of virus and endosome tracers within nerve terminals indicates that virus resides in an early endosome compartment, some of which are acidified. The progressive increase of virus and tracers in nerve fibers and nerve cell bodies over time is consistent with retrograde transport of endocytosed virus from the motor nerve terminal.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0148-639X
pubmed:author
pubmed:copyrightInfo
Copyright 2000 John Wiley & Sons, Inc.
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
720-30
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Rabies virus entry at the neuromuscular junction in nerve-muscle cocultures.
pubmed:affiliation
Department of Cell Biology, Yale University School of Medicine, 333 Cedar Street, PO Box 208002, New Haven, Connecticut 06520-8002, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.