Unexpected Benefits of Aging for Favorable Responses to PD-1 Blockade in Melanoma?

Pawelec, Graham · Clin Cancer Res · 2018

editorial · Level V

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Abstract

Immunosenescence might be expected to reduce the efficacy of checkpoint blockade, which depends on a functionally intact immune system. However, it seems that older patients with melanoma may respond better to anti-PD-1 treatment than younger patients, possibly due to their having fewer regulatory T cells relative to CD8<sup>+</sup> T cells within tumor deposits. <i>Clin Cancer Res; 24(21); 5193-4. ©2018 AACR</i> <i>See related article by Kugel et al., p. 5347</i>.

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