The late endosomal p14-MP1 (LAMTOR2/3) complex regulates focal adhesion dynamics during cell migration

Cell migration is mediated by the dynamic remodeling of focal adhesions (FAs). Recently, an important role of endosomal signaling in regulation of cell migration was recognized. Here, we show an essential function for late endosomes carrying the p14-MP1 (LAMTOR2/3) complex in FA dynamics. p14-MP1-po...

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Veröffentlicht in:The Journal of cell biology 2014-05, Vol.205 (4), p.525-540
Hauptverfasser: Schiefermeier, Natalia, Scheffler, Julia M, de Araujo, Mariana E G, Stasyk, Taras, Yordanov, Teodor, Ebner, Hannes L, Offterdinger, Martin, Munck, Sebastian, Hess, Michael W, Wickström, Sara A, Lange, Anika, Wunderlich, Winfried, Fässler, Reinhard, Teis, David, Huber, Lukas A
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container_end_page 540
container_issue 4
container_start_page 525
container_title The Journal of cell biology
container_volume 205
creator Schiefermeier, Natalia
Scheffler, Julia M
de Araujo, Mariana E G
Stasyk, Taras
Yordanov, Teodor
Ebner, Hannes L
Offterdinger, Martin
Munck, Sebastian
Hess, Michael W
Wickström, Sara A
Lange, Anika
Wunderlich, Winfried
Fässler, Reinhard
Teis, David
Huber, Lukas A
description Cell migration is mediated by the dynamic remodeling of focal adhesions (FAs). Recently, an important role of endosomal signaling in regulation of cell migration was recognized. Here, we show an essential function for late endosomes carrying the p14-MP1 (LAMTOR2/3) complex in FA dynamics. p14-MP1-positive endosomes move to the cell periphery along microtubules (MTs) in a kinesin1- and Arl8b-dependent manner. There they specifically target FAs to regulate FA turnover, which is required for cell migration. Using genetically modified fibroblasts from p14-deficient mice and Arl8b-depleted cells, we demonstrate that MT plus end-directed traffic of p14-MP1-positive endosomes triggered IQGAP1 disassociation from FAs. The release of IQGAP was required for FA dynamics. Taken together, our results suggest that late endosomes contribute to the regulation of cell migration by transporting the p14-MP1 scaffold complex to the vicinity of FAs.
doi_str_mv 10.1083/jcb.201310043
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subjects Adaptor Proteins, Signal Transducing - genetics
Adaptor Proteins, Signal Transducing - metabolism
ADP-Ribosylation Factors - metabolism
Animals
Cell adhesion & migration
Cell Line
Cell Movement - physiology
Endosomes - metabolism
Fibroblasts - cytology
Focal Adhesions - metabolism
Genetics
HeLa Cells
Humans
Mice
Mice, 129 Strain
Mice, Inbred C57BL
Mice, Knockout
Molecular Sequence Data
NIH 3T3 Cells
Proteins - genetics
Proteins - metabolism
ras GTPase-Activating Proteins - genetics
ras GTPase-Activating Proteins - metabolism
Rodents
Signal Transduction - physiology
title The late endosomal p14-MP1 (LAMTOR2/3) complex regulates focal adhesion dynamics during cell migration
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