Motile membrane protrusions regulate cell-cell adhesion and migration of olfactory ensheathing glia

Windus, Louisa C. E. and Claxton, Christina and Allen, Chelsea L. and Key, Brian and St John, James A. (2007) Motile membrane protrusions regulate cell-cell adhesion and migration of olfactory ensheathing glia. GLIA, 55 (15). pp. 1708-1719. ISSN 0894-1491

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Abstract

Olfactory ensheathing cells (OECs) are candidates for therapeutic approaches for neural regeneration due to their ability to assist axon regrowth in central nervous system lesion models. However, little is understood about the processes and mechanisms underlying migration of these cells. We report here that novel lamellipodial protrusions, termed lamellipodial waves, are integral to OEC migration. Time-lapse imaging of migrating OECs revealed that these highly dynamic waves progress along the shaft of the cells and are crucial for mediating cell-cell adhesion. Without these waves, cell-cell adhesion does not occur and migrational rates decline. The activity of waves is modulated by both glial cell line-derived neurotrophic factor and inhibitors of the JNK and SRC kinases. Furthermore, the activity of lamellipodial waves can be modulated by Mek1, independently of leading edge activity. The ability to selectively regulate cell migration via lamellipodial waves has implications for manipulating the migratory behavior of OECs during neural repair.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 27 Oct 2020 05:23
Last Modified: 27 Oct 2020 05:25
Uncontrolled Keywords: lamellipodia; olfactory ensheathing cell; repulsion; GDNF; Mek1
Fields of Research (2008): 06 Biological Sciences > 0601 Biochemistry and Cell Biology > 060106 Cellular Interactions (incl. Adhesion, Matrix, Cell Wall)
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970106 Expanding Knowledge in the Biological Sciences
Identification Number or DOI: https://doi.org/10.1002/glia.20586
URI: http://eprints.usq.edu.au/id/eprint/39998

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