ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells
Melanoma cells have been shown to undergo fast amoeboid (leader bleb-based) migration, requiring a single large bleb for migration. In leader blebs, is a rapid flow of cortical actin that drives the cell forward. Using RNAi, we find that co-depleting cofilin-1 and actin depolymerizing factor (ADF) l...
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doaj-f14602cba2294116b1f1bf4172633d882021-07-02T11:23:40ZengeLife Sciences Publications LtdeLife2050-084X2021-06-011010.7554/eLife.67856ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cellsMaria F Ullo0Jeremy S Logue1https://orcid.org/0000-0002-5274-2052Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, United StatesDepartment of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, United StatesMelanoma cells have been shown to undergo fast amoeboid (leader bleb-based) migration, requiring a single large bleb for migration. In leader blebs, is a rapid flow of cortical actin that drives the cell forward. Using RNAi, we find that co-depleting cofilin-1 and actin depolymerizing factor (ADF) led to a large increase in cortical actin, suggesting that both proteins regulate cortical actin. Furthermore, severing factors can promote contractility through the regulation of actin architecture. However, RNAi of cofilin-1 but not ADF led to a significant decrease in cell stiffness. We found cofilin-1 to be enriched at leader bleb necks, whereas RNAi of cofilin-1 and ADF reduced bleb sizes and the frequency of motile cells. Strikingly, cells without cofilin-1 and ADF had blebs with abnormally long necks. Many of these blebs failed to retract and displayed slow actin turnover. Collectively, our data identifies cofilin-1 and ADF as actin remodeling factors required for fast amoeboid migration.https://elifesciences.org/articles/67856cancermetastasiscell migrationamoeboidcytoskeletonactin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Maria F Ullo Jeremy S Logue |
spellingShingle |
Maria F Ullo Jeremy S Logue ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells eLife cancer metastasis cell migration amoeboid cytoskeleton actin |
author_facet |
Maria F Ullo Jeremy S Logue |
author_sort |
Maria F Ullo |
title |
ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells |
title_short |
ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells |
title_full |
ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells |
title_fullStr |
ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells |
title_full_unstemmed |
ADF and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells |
title_sort |
adf and cofilin-1 collaborate to promote cortical actin flow and the leader bleb-based migration of confined cells |
publisher |
eLife Sciences Publications Ltd |
series |
eLife |
issn |
2050-084X |
publishDate |
2021-06-01 |
description |
Melanoma cells have been shown to undergo fast amoeboid (leader bleb-based) migration, requiring a single large bleb for migration. In leader blebs, is a rapid flow of cortical actin that drives the cell forward. Using RNAi, we find that co-depleting cofilin-1 and actin depolymerizing factor (ADF) led to a large increase in cortical actin, suggesting that both proteins regulate cortical actin. Furthermore, severing factors can promote contractility through the regulation of actin architecture. However, RNAi of cofilin-1 but not ADF led to a significant decrease in cell stiffness. We found cofilin-1 to be enriched at leader bleb necks, whereas RNAi of cofilin-1 and ADF reduced bleb sizes and the frequency of motile cells. Strikingly, cells without cofilin-1 and ADF had blebs with abnormally long necks. Many of these blebs failed to retract and displayed slow actin turnover. Collectively, our data identifies cofilin-1 and ADF as actin remodeling factors required for fast amoeboid migration. |
topic |
cancer metastasis cell migration amoeboid cytoskeleton actin |
url |
https://elifesciences.org/articles/67856 |
work_keys_str_mv |
AT mariafullo adfandcofilin1collaboratetopromotecorticalactinflowandtheleaderblebbasedmigrationofconfinedcells AT jeremyslogue adfandcofilin1collaboratetopromotecorticalactinflowandtheleaderblebbasedmigrationofconfinedcells |
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1721331284908703744 |