Cited by 94T-cell and B-cell ImmunologyDevelopmental Biology and Gene RegulationPI3K/AKT/mTOR signaling in cancer

LKB1 is essential for the proliferation of T‐cell progenitors and mature peripheral T cells

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Tamás, Peter, Macintyre, Andrew, Finlay, David, Clarke, Rosemary, Feijoo‐Carnero, Carmen, Ashworth, Alan, Cantrell, Doreen·2010·European Journal of Immunology

Abstract

The serine/threonine kinase LKB1 has a conserved role in Drosophila and nematodes to co‐ordinate cell metabolism. During T lymphocyte development in the thymus, progenitors need to synchronize increased metabolism with the onset of proliferation and differentiation to ensure that they can meet the energy requirements for development. The present study explores the role of LKB1 in this process and shows that loss of LKB1 prevents thymocyte differentiation and the production of peripheral T lymphocytes. We find that LKB1 is required for several key metabolic processes in T‐cell progenitors. For example, LKB1 controls expression of CD98, a key subunit of the L ‐system aa transporter and is also required for the pre‐TCR to induce and sustain the regulated phosphorylation of the ribosomal S6 subunit, a key regulator of protein synthesis. In the absence of LKB1 TCR‐β‐selected thymocytes failed to proliferate and did not survive. LBK1 was also required for survival and proliferation of peripheral T cells. These data thus reveal a conserved and essential role for LKB1 in the proliferative responses of both thymocytes and mature T cells.

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Crossref · 10.1002/eji.200939677

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  • Loss of LKB1-AMPK signaling promotes increased mTORC1 activity in both naïve and TEFF cells, which in turn facilitates production of the TH1 cytokine interferon-γ (IFN-γ) by TEFF cells.

    “Loss of LKB1-AMPK signaling promotes increased mTORC1 activity in both naïve and TEFF cells (88, 90), which in turn facilitates production of the TH1 cytokine interferon-γ (IFN-γ) by TEFF cells (88).”

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Authors
Tamás, P., Macintyre, A., Finlay, D., Clarke, R., Feijoo‐Carnero, C., Ashworth, A., & Cantrell, D.
Affiliations
  • University of Dundee (GB)
  • Institute of Cancer Research (GB)
Corresponding author
Cantrell, Doreen
Venue
European Journal of Immunology
Publisher
Wiley
Published
2009-12-30
Volume
40
Issue
1
Pages
242-253
ISSN
  • 0014-2980 (ISSN-L)
  • 1521-4141
OpenAlex
W2167539814
Cited by
94
References
54
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 3 · 2022: 3 · 2021: 9 · 2020: 4 · 2019: 4 · 2018: 7 · 2017: 7 · 2016: 3 · 2015: 6 · 2014: 11 · 2013: 7 · 2012: 8
FWCI
3.44
Type
journal article
Language
en
Open access
Locations
  • European Journal of Immunology (publishedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Discovery Research Portal (University of Dundee) (acceptedVersion, other-oa)
Funders
  • Wellcome Trust (GR065975, 065975)
  • Cancer Research UK (A8363)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
LKB1, T cell development, thymocyte proliferation, thymocyte differentiation, T cell metabolism, CD98, amino acid transporters, protein synthesis, pre-TCR signaling, T cell survival, peripheral T cells
MeSH terms
Animals, Cell Differentiation, Cells, Cultured, Mice, Inbred C57BL, T-Lymphocytes, Receptors, Antigen, T-Cell, alpha-beta, Protein Serine-Threonine Kinases, Fusion Regulatory Protein-1, Cell Proliferation, Mice, Precursor Cells, T-Lymphoid, AMP-Activated Protein Kinases

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