Cited by 189Cellular Mechanics and InteractionsMicrotubule and mitosis dynamicsProtein Kinase Regulation and GTPase Signaling

Amoeboid T lymphocytes require the septin cytoskeleton for cortical integrity and persistent motility

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Tooley, Aaron J., Gilden, Julia, Jacobelli, Jordan, Beemiller, Peter, Trimble, William S., Kinoshita, Makoto, Krummel, Matthew F.·2009·Nature Cell Biology

Abstract

The systems that refine actomyosin forces during motility remain poorly understood. Septins assemble on the T-cell cortex and are enriched at the mid-zone in filaments. Septin knockdown causes membrane blebbing, excess leading-edge protrusions and lengthening of the trailing-edge uropod. The associated loss of rigidity permits motility, but cells become uncoordinated and poorly persistent. This also relieves a previously unrecognized restriction to migration through small pores. Pharmacologically rigidifying cells counteracts this effect, and relieving cytoskeletal rigidity synergizes with septin depletion. These data suggest that septins tune actomyosin forces during motility and probably regulate lymphocyte trafficking in confined tissues.

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Crossref · 10.1038/ncb1808

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  • The septin complex forms filaments associated with the microtubule cytoskeleton during interphase and diffuses within the cytoplasm upon cell rounding and microtubule de-polymerization.

    “The septin complex forms filaments associated with the microtubule cytoskeleton during interphase [51, 52] and diffuses within the cytoplasm upon cell rounding and microtubule de-polymerization (not shown).”

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Authors
Tooley, A. J., Gilden, J., Jacobelli, J., Beemiller, P., Trimble, W. S., Kinoshita, M., & Krummel, M. F.
Affiliations
  • University of California, San Francisco (US)
  • University of Toronto (CA)
  • Kyoto University (JP)
Corresponding author
Krummel, Matthew F.
Venue
Nature Cell Biology
Published
2008-11-30
Volume
11
Issue
1
Pages
17-26
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W2054984177
Cited by
189
References
38
Citations by year
2026: 11 · 2025: 1 · 2024: 5 · 2023: 11 · 2022: 11 · 2021: 12 · 2020: 8 · 2019: 7 · 2018: 13 · 2017: 10 · 2016: 14 · 2015: 14 · 2014: 16 · 2013: 9 · 2012: 10
FWCI
5.25
Type
journal article
Language
en
Open access
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation
  • Leukemia and Lymphoma Society
  • National Institute of Allergy and Infectious Diseases (R21AI062899, R01AI052116)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
septins, T cell migration, cell motility, cell cortex, actomyosin force, membrane blebbing, uropod, lymphocyte migration, pore migration
MeSH terms
Actins, Animals, Cell Membrane, Cell Movement, Cells, Cultured, Chemotaxis, Leukocyte, Cytoskeletal Proteins, Cytoskeleton, Mice, Transgenic, Myosins, Stress, Mechanical, T-Lymphocytes, Down-Regulation, GTP Phosphohydrolases, Cell Surface Extensions, RNA Interference, Cell Shape, Mice, Septins

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