Abstract:Immune checkpoint inhibitors (ICI) invigorate immune cell functions and are effective against many cancer types. However, the potential of ICI may be limited in situations where immune cell fitness is impaired. Here, we show that the efficacy of αPD-L1-based cancer immunotherapies is compromised by the accumulation of senescent cells in mice previously exposed to sublethal irradiation or injected with doxorubicin. Similarly, we observed that the efficacy of the combination of a αCTLA-4 antibody with radiothera… Show more
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