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Δευτέρα 12 Μαρτίου 2018

Targeting MDSCs and PD-L1 confers the therapeutic advantage of ablative hypofractionated radiotherapy over conventional fractionated radiotherapy

This study compared the immune alterations in response to ablative hypofractionated radiotherapy (AHFRT) and conventional fractionated radiotherapy (CFRT) under the same BED, and showed that AHFRT suppressed recruitment of MDSCs into tumors, releasing the inhibition on CD8+ T cells, and boosting not only local but also systemic anti-cancer immunity. Adding anti-PD-L1 immunotherapy further boosted the potency of AHFRT. This study extended the mechanisms underlying the efficacy of AHFRT and proposed strategy to combine radiotherapy with immunotherapy.

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