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| Home > Publications database > T Cell Factor 1 Suppresses CD103+ Lung Tissue-Resident Memory T Cell Development. |
| Home > Publications database > T Cell Factor 1 Suppresses CD103+ Lung Tissue-Resident Memory T Cell Development. |
| Journal Article | DKFZ-2020-00771 |
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2020
Elsevier
[New York, NY]
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Please use a persistent id in citations: doi:10.1016/j.celrep.2020.03.048
Abstract: T cell factor 1 (Tcf1) promotes the central memory CD8+ T (TCM) cell differentiation and stemness in lymphoid tissues after systemic infections. It remains unclear whether Tcf1 regulates the CD103high tissue-resident memory CD8+ T (TRM) cell formation in non-lymphoid tissues after mucosal infections. We find that Tcf1 is progressively decreased during lung TRM cell formation. Abrogation of transforming growth factor β (TGF-β) signaling is associated with a loss of CD103+ and reciprocal gain of Tcf1+ cells among TRM precursors in vivo. T-cell-specific ablation of Tcf7 enhances CD103 protein expression in TRM cells and precursors and increases TRM cell numbers after primary and secondary infections. Tcf1 directly binds to the Itgae (encoding CD103) locus and partly inhibits TGF-β-induced CD103 expression. Our study suggests that memory T cell tissue residency and homeostatic proliferation are reciprocally regulated by Tcf1. Tcf1 may play either immunosupportive or immunosuppressive roles in CD8+ T cells, depending on systemic or mucosal infections.
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