Scientific article
OA Policy
English

Modulation of mTOR signalling triggers the formation of stem cell-like memory T cells

Published inEBioMedicine, vol. 4, p. 50-61
Publication date2016
Abstract

Robust, long-lasting immune responses are elicited by memory T cells that possess properties of stem cells, enabling them to persist long-term and to permanently replenish the effector pools. Thus, stem cell-like memory T (TSCM) cells are of key therapeutic value and efforts are underway to characterize TSCM cells and to identify means for their targeted induction. Here, we show that inhibition of mechanistic/mammalian Target of Rapamycin (mTOR) complex 1 (mTORC1) by rapamycin or the Wnt-β-catenin signalling activator TWS119 in activated human naive T cells leads to the induction of TSCM cells. We show that these compounds switch T cell metabolism to fatty acid oxidation as favoured metabolic programme for TSCM cell generation. Of note, pharmacologically induced TSCM cells possess superior functional features as a long-term repopulation capacity after adoptive transfer. Furthermore, we provide insights into the transcriptome of TSCM cells. Our data identify a mechanism of pharmacological mTORC1 inhibitors, allowing us to confer stemness to human naive T cells which may be significantly relevant for the design of innovative T cell-based cancer immunotherapies.

Keywords
  • Animals
  • CD4-Positive T-Lymphocytes/cytology/immunology
  • Cells
  • Cultured
  • Female
  • Humans
  • Immunologic Memory
  • Lymphopoiesis
  • Mechanistic Target of Rapamycin Complex 1
  • Mice
  • Multiprotein Complexes/antagonists & inhibitors/metabolism
  • Precursor Cells
  • T-Lymphoid/cytology/immunology
  • Pyrimidines/pharmacology
  • Pyrroles/pharmacology
  • Signal Transduction
  • TOR Serine-Threonine Kinases/antagonists & inhibitors/metabolism
Affiliation entities Not a UNIGE publication
Citation (ISO format)
SCHOLZ, Godehard et al. Modulation of mTOR signalling triggers the formation of stem cell-like memory T cells. In: EBioMedicine, 2016, vol. 4, p. 50–61. doi: 10.1016/j.ebiom.2016.01.019
Main files (1)
Article (Published version)
Identifiers
ISSN of the journal2352-3964
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103downloads

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