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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1997-10-23
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pubmed:abstractText |
The host cell cytoskeleton is known to play a vital role in the life cycles of several pathogenic intracellular microorganisms by providing the basis for a successful invasion and by promoting movement of the pathogen once inside the host cell cytoplasm. McCoy cells infected with Chlamydia trachomatis serovars E or L2 revealed, by indirect immunofluorescence microscopy, collocation of microtubules and Chlamydia-containing vesicles during the process of migration from the host cell surface to a perinuclear location. The vast majority of microtubule-associated Chlamydia vesicles also collocated with tyrosine-phosphorylated McCoy cell proteins. After migration, the Chlamydia-containing vesicles were positioned exactly at the centre of the microtubule network, indicating a microtubule-dependent mode of chlamydial redistribution. Inhibition of host cell dynein, a microtubule-dependent motor protein known to be involved in directed vesicle transport along microtubules, was observed to have a pronounced effect on C. trachomatis infectivity. Furthermore, dynein was found to collocate with perinuclear aggregates of C. trachomatis E and L2 but not C. pneumoniae VR-1310, indicating a marked difference in the cytoskeletal requirements for C. trachomatis and C. pneumoniae during early infection events. In support of this view, C. pneumoniae VR-1310 was shown to induce much less tyrosine phosphorylation of HeLa cell proteins during uptake than that seen for C. trachomatis.
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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 |
Aug
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pubmed:issn |
0950-382X
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
25
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
441-9
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:9302007-Animals,
pubmed-meshheading:9302007-Cell Line,
pubmed-meshheading:9302007-Chlamydia Infections,
pubmed-meshheading:9302007-Chlamydia trachomatis,
pubmed-meshheading:9302007-Cytoskeleton,
pubmed-meshheading:9302007-Dyneins,
pubmed-meshheading:9302007-HeLa Cells,
pubmed-meshheading:9302007-Humans,
pubmed-meshheading:9302007-Mice,
pubmed-meshheading:9302007-Microtubules
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pubmed:year |
1997
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pubmed:articleTitle |
Chlamydia trachomatis utilizes the host cell microtubule network during early events of infection.
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pubmed:affiliation |
Department of Medical Microbiology, University of Aarhus, Aarhus C, Denmark.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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