The role of the recycling endosome in regulating lamellipodia formation and macrophage migration
Veale, Kelly, Offenhauser, Carolin, & Murray, Rachael (2011) The role of the recycling endosome in regulating lamellipodia formation and macrophage migration. Communicative and Integrative Biology, 4(1), pp. 44-47.
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Cell migration is a highly complex process that requires the extension of cell membrane in the direction of
travel. This membrane is continuously remodeled to expand the leading edge and alter its membrane properties. For a long time it has been known that there is a continual flow of polarized membrane traffic towards the leading edge during migration and that this trafficking is essential for cell migration. However, there is little information on how the cell coordinates exocytosis at the leading edge. It is also unclear whether these internal membranes are incorporated into the leading edge or are just delivering the necessary proteins for migration to occur. We have shown that recycling endosome membrane is incorporated into the plasma membrane at the leading edge to expand the membrane and at the same time delivers receptors to the leading edge to mediate migration. In order for this to happen the surface Q-SNARE complex Stx4/SNAP23 translocates to the leading edge where it binds to the R-SNARE VAMP3 on the recycling endosome allowing incorporation into the plasma membrane. Loss of any one of the components of this complex reduces efficient lamellipodia formation and restrains cell migration.
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|Item Type:||Journal Article|
|Keywords:||Cell migration, Membrane Fusion, Lamellipodia formation, SNAREs, Recycling endosome|
|Subjects:||Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > BIOCHEMISTRY AND CELL BIOLOGY (060100) > Cellular Interactions (incl. Adhesion Matrix Cell Wall) (060106)|
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > BIOCHEMISTRY AND CELL BIOLOGY (060100) > Protein Trafficking (060108)
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > BIOCHEMISTRY AND CELL BIOLOGY (060100) > Receptors and Membrane Biology (060110)
|Divisions:||Current > Schools > School of Biomedical Sciences|
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2011 Landes Bioscience|
|Deposited On:||15 May 2012 11:01|
|Last Modified:||20 Jun 2012 07:51|
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