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Immunotherapy advances in cancers with mismatch repair or proofreading deficiencies

Tumors with DNA mismatch repair or proofreading deficiencies, either at the germinal or somatic level, usually present with high tumor mutational burden and often show striking responses to checkpoint blockade immunotherapy. Ongoing translational and clinical investigations of those tumor subsets provide avenues for further improvement in patient outcomes.

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Fig. 1: MMRd and POLE-mutated tumors display high TMB and sensitivity to immunotherapy.

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Acknowledgements

B.R. is supported by Swim Across America and Memorial Sloan Kettering Cancer Center core grant MSKCC T32‐CA009512.

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Correspondence to Aurelien Marabelle.

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Competing interests

The authors have participated in clinical trials sponsored by Merck Sharp & Dohme, GlaxoSmithKline and Bristol Myers Squibb in the context of patients with MMRd and/or POLE-mutated tumors. Over the past five years, T.A. and A.M. have participated in compensated scientific advisory boards from Merck Sharp & Dohme, GlaxoSmithKline and Bristol Myers Squibb.

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Alouani, E., Rousseau, B., Andre, T. et al. Immunotherapy advances in cancers with mismatch repair or proofreading deficiencies. Nat Cancer 3, 1414–1417 (2022). https://doi.org/10.1038/s43018-022-00497-5

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