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Impact of cancer evolution on immune surveillance and checkpoint inhibitor response.

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journal contribution
posted on 2022-06-30, 13:27 authored by Yin Wu, Dhruva Biswas, Charles Swanton
Intratumour heterogeneity (ITH) is pervasive across all cancers studied and may provide the evolving tumour multiple routes to escape immune surveillance. Immune checkpoint inhibitors (CPIs) are rapidly becoming standard of care for many cancers. Here, we discuss recent work investigating the influence of ITH on patient response to immune checkpoint inhibitor (CPI) therapy. At its simplest, ITH may confound the diagnostic accuracy of predictive biomarkers used to stratify patients for CPI therapy. Furthermore, ITH is fuelled by mechanisms of genetic instability that can both engage immune surveillance and drive immune evasion. A greater appreciation of the interplay between ITH and the immune system may hold the key to increasing the proportion of patients experiencing durable responses from CPI therapy.

Funding

Crick (Grant ID: 10169, Grant title: Swanton FC001169) Novo Nordisk UK Research Foundation (Grant ID: NNF15OC0016584, Grant title: NovoNordisk Foundation 16584) European Research Council (Grant ID: 617844 - THESEUS, Grant title: ERC 617844 - THESEUS) European Research Council (Grant ID: 835297 - PROTEUS, Grant title: ERC 835297 - PROTEUS)

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