Article
Modulation of cord blood CD8+ T-cell effector differentiation by TGF-beta1 and 4-1BB costimulation.
Blood - 1 Jan 2005
Kim Young-June, Stringfield Teresa M, Chen Yan, Broxmeyer Hal E
Abstract excerpt
Transforming growth factor-beta1 (TGF-beta1), an immunosuppressive cytokine, inhibits cytotoxic T cell (CTL) immune responses. In contrast, 4-1BB (CD137), a costimulatory molecule in the tumor necrosis factor (TNF) receptor family, amplifies CTL-mediated antitumor immune responses. We investigated whether TGF-beta1 responses could be reversed by 4-1BB costimulation during in vitro differentiation of naive CD8+ T...
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