Abstract：
:The plasma membrane of cells is composed of lateral heterogeneities, patches and microdomains. These membrane microdomains or lipid rafts are enriched in glycosphingolipids and cholesterol and have been implicated in cellular processes such as membrane sorting and signal transduction. In this study we investigated the importance of lipid raft formation in the innate immune recognition of bacteria using biochemical and fluorescence imaging techniques. We found that receptor molecules that are implicated in lipopolysaccharide (LPS)-cellular activation, such as CD14, heat shock protein (hsp) 70, 90, Chemokine receptor 4 (CXCR4), growth differentiation factor 5 (GDF5) and Toll-like receptor 4 (TLR4), are present in microdomains following LPS stimulation. Lipid raft integrity is essential for LPS-cellular activation, since raft-disrupting drugs, such as nystatin or MCD, inhibit LPS-induced TNF-alpha secretion. Our results suggest that the entire bacterial recognition system is based around the ligation of CD14 by bacterial components and the recruitment of multiple signalling molecules, such as hsp70, hsp90, CXCR4, GDF5 and TLR4, at the site of CD14-LPS ligation, within the lipid rafts.
journal_name
J Cell Scijournal_title
Journal of cell scienceauthors
Triantafilou M,Miyake K,Golenbock DT,Triantafilou Kkeywords:
subject
Has Abstractpub_date
2002-06-15 00:00:00pages
2603-11issue
Pt 12eissn
0021-9533issn
1477-9137journal_volume
115pub_type
杂志文章abstract：:Survivin, a human inhibitor of apoptosis protein (IAP), plays an important role in both cell cycle regulation and inhibition of apoptosis. Survivin is expressed in cells during the G(2)/M phase of the cell cycle, followed by rapid decline of both mRNA and protein levels at the G(1) phase. It has been suggested that ce...
journal_title：Journal of cell science
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journal_title：Journal of cell science
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更新日期：1979-02-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
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更新日期：1988-06-01 00:00:00
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pub_type： 杂志文章
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journal_title：Journal of cell science
pub_type： 杂志文章
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更新日期：2001-08-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
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更新日期：2018-06-11 00:00:00
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更新日期：2001-04-01 00:00:00
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journal_title：Journal of cell science
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更新日期：1994-12-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：
更新日期：1999-08-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章,评审
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更新日期：2016-03-15 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：10.1242/jcs.025031
更新日期：2008-04-15 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：
更新日期：1986-06-01 00:00:00
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：
更新日期：1998-07-30 00:00:00
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journal_title：Journal of cell science
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doi：10.1242/jcs.046805
更新日期：2009-06-15 00:00:00
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更新日期：2018-09-03 00:00:00
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journal_title：Journal of cell science
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journal_title：Journal of cell science
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journal_title：Journal of cell science
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
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更新日期：2011-12-15 00:00:00
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journal_title：Journal of cell science
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更新日期：2012-03-01 00:00:00
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