Notch-mediated conversion of activated T cells into stem cell memory-like T cells for adoptive immunotherapy.

ABSTRACT: Adoptive T-cell immunotherapy is a promising approach to cancer therapy. Stem cell memory T (T_SCM) cells have been proposed as a class of long-lived and highly proliferative memory T cells. CD8⁺ T_SCM cells can be generated in vitro from naive CD8⁺ T cells via Wnt signalling; however, methods do not yet exist for inducing T_SCM cells from activated or memory T cells. Here, we show a strategy for generating T_SCM-like cells in vitro (iT_SCM cells) from activated CD4⁺ and CD8⁺ T cells in mice and humans by coculturing with stromal cells that express a Notch ligand. iT_SCM cells lose PD-1 and CTLA-4 expression, and produce a large number of tumour-specific effector cells after restimulatio

SUBMITTER: Kondo T 

PROVIDER: S-EPMC5458121 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature