简介：Cancerevadeshostimmunesurveillancebyusingimmunecheckpoints,whichareinhibitorypathwayscrucialformaintainingself-tolerance1.Tumorcellsexpressmultipleinhibitoryligands,andtumor-infiltratinglymphocytes(TIL)expressavarietyofinhibitoryreceptors.InhibitoryreceptorscytotoxicT-lymphocyte-associatedprotein4(CTLA-4)andprogrammeddeath-1
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