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Κυριακή 17 Δεκεμβρίου 2017

Emerging biomarkers for the combination of radiotherapy and immune checkpoint blockers

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Publication date: Available online 16 December 2017
Source:Seminars in Cancer Biology
Author(s): Claire Lhuillier, Claire Vanpouille-Box, Lorenzo Galluzzi, Silvia Chiara Formenti, Sandra Demaria
Over the past few years, multiple immune checkpoint blockers (ICBs) have achieved unprecedented clinical success and have been approved by regulatory agencies for the treatment of an increasing number of malignancies. However, only a limited fraction of patients responds to ICBs employed as a standalone intervention, calling for the development of combinatorial regimens. Radiation therapy (RT) stands out as a very promising candidate for this purpose. Indeed, RT mediates antineoplastic effects not only by cytotoxic and cytostatic mechanisms, but also by modulating immunological functions, both locally (within the irradiated field) and systemically. As combinatorial regimens involving RT and ICBs are being developed and clinically tested at an accelerating pace, it is paramount to identify biomarkers that reliably predict the likelihood of individual patients to respond. Here, we discuss emerging biomarkers that may potentially predict the response of cancer patients to RT plus ICBs.



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