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Boroughs, Angela C; Larson, Rebecca C; Choi, Bryan D; Bouffard, Amanda A; Riley, Lauren S; Schiferle, Erik; Kulkarni, Anupriya S; Cetrulo, Curtis L; Ting, David; Blazar, Bruce R; Demehri, Shadmehr; Maus, Marcela V
JCI insight, 04/2019, Letnik: 5, Številka: 8Journal Article
Regulatory T cells (Tregs) are key modulators of inflammation and are important for the maintenance of peripheral tolerance. Adoptive immunotherapy with polyclonal Tregs holds promise in organ transplantation, graft-versus-host disease, and autoimmune diseases, but may be enhanced by antigen-specific, long-lived Treg cells. We modified primary human Tregs with chimeric antigen-receptors (CARs) bearing different costimulatory domains and performed in vitro analyses of their phenotype and function. While neither the presence of a CAR nor the type of costimulation domain influenced Foxp3 expression in Tregs, the costimulation domain of the CARs affected CAR Treg surface phenotype and functions such as cytokine production. Furthermore, signaling from the CD28 costimulation domain maintained CAR Treg suppressor function, whereas 4-1B costimulation did not. In vivo, CAR Tregs accumulated at sites expressing target antigen, and suppressed antigen specific effector T cell responses; however, only CAR Tregs with CD28 signaling domains were potent inhibitors of effector T cell mediated graft rejection in vivo. Our findings support the use of CD28 based CAR-Tregs for tissue specific immune suppression in the clinic.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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