rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
2002-2-20
|
pubmed:abstractText |
Invasive Salmonella trigger their own uptake into non-phagocytic eukaryotic cells by delivering virulence proteins that stimulate signaling pathways and remodel the actin cytoskeleton. It has recently emerged that Salmonella encodes two actin-binding proteins, SipC and SipA, which together efficiently nucleate actin polymerization and stabilize the resulting supramolecular filament architecture. Therefore, Salmonella might directly initiate actin polymerization independently of the cellular Arp2/3 complex early in the cell entry process. This is an unprecedented example of a direct intervention strategy to facilitate entry of a pathogen into a target cell. Here, we discuss the Salmonella actin-binding proteins and how they might function in combination with entry effectors that stimulate Rho GTPases. We propose that membrane-targeted bacterial effector proteins might trigger actin polymerization through diverse mechanisms during cell entry by bacterial pathogens.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0962-8924
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
12
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
15-20
|
pubmed:dateRevised |
2011-11-17
|
pubmed:meshHeading |
pubmed-meshheading:11854005-Actin Cytoskeleton,
pubmed-meshheading:11854005-Actin-Related Protein 2,
pubmed-meshheading:11854005-Actins,
pubmed-meshheading:11854005-Animals,
pubmed-meshheading:11854005-Bacterial Proteins,
pubmed-meshheading:11854005-Cytoskeletal Proteins,
pubmed-meshheading:11854005-Cytoskeleton,
pubmed-meshheading:11854005-Eukaryotic Cells,
pubmed-meshheading:11854005-Humans,
pubmed-meshheading:11854005-Microfilament Proteins,
pubmed-meshheading:11854005-Salmonella,
pubmed-meshheading:11854005-Salmonella Infections,
pubmed-meshheading:11854005-Signal Transduction
|
pubmed:year |
2002
|
pubmed:articleTitle |
Direct modulation of the host cell cytoskeleton by Salmonella actin-binding proteins.
|
pubmed:affiliation |
University of Cambridge, Dept of Pathology, Tennis Court Road, CB2 1QP, Cambridge, UK. rdh24@mole.bio.cam.ac.uk
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|