Modulation of mTOR Signalling Triggers the Formation of Stem Cell-like Memory T Cells

Autor: Godehard Scholz, Camilla Jandus, Lianjun Zhang, Camille Grandclément, Isabel C. Lopez-Mejia, Charlotte Soneson, Mauro Delorenzi, Lluis Fajas, Werner Held, Olivier Dormond, Pedro Romero
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: EBioMedicine, Vol 4, Iss C, Pp 50-61 (2016)
Druh dokumentu: article
ISSN: 2352-3964
DOI: 10.1016/j.ebiom.2016.01.019
Popis: 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.
Databáze: Directory of Open Access Journals