CD137 (4-1BB) and T-Lymphocyte Exhaustion.

Molero-Glez, Paula; Azpilikueta, Arantza; Mosteo, Laura; Glez-Vaz, Javier; Palencia, Belen; Melero, Ignacio · Clin Cancer Res · 2024

review · Level V

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Abstract

CD137 (4-1BB) costimulation results in the potent activation of antitumor T lymphocytes and elicits antitumor efficacy that is synergistic with anti-PD(L)1 checkpoint inhibitors, especially when using bispecific constructs. Emerging experimental evidence indicates that 4-1BB ligation prevents and may revert T-cell exhaustion. See related article by Jeon et al., p. 4155.

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