Journal
JOURNAL OF CELL SCIENCE
Volume 117, Issue 17, Pages 4007-4014Publisher
COMPANY OF BIOLOGISTS LTD
DOI: 10.1242/jcs.01270
Keywords
LTA; toll-like receptors; LPS-activation cluster; innate recognition; FRAP
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The innate immune system utilises pattern recognition receptors in order to recognise microbial conserved molecular patterns. The family of Toll-like receptors (TLRs) has been shown to act as the main pattern recognition receptors for the innate immune system. Using biochemical as well as fluorescence imaging techniques, TLR2 and TLR4 were found to be recruited within microdomains upon stimulation by bacterial products. Furthermore their lateral diffusion in the cell membrane as determined by fluorescence recovery after photobleaching revealed that upon stimulation by bacterial products TLRs encounter barriers to their lateral movement, thus supporting the notion that specialised domains on the plasma membrane facilitate the innate recognition.
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