Circulating Tumor Cell PD-L1 and Peripheral Blood CD8+ T-Cell PD-1 as Dual Liquid Biopsy Biomarkers for Immunotherapy Outcomes in Advanced Non-Small Cell Lung Cancer: A Retrospective Study
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Background: Circulating tumor cells (CTCs) and peripheral T-cell immune checkpoints offer minimally invasive biomarkers for immune checkpoint inhibitor (ICI) therapy. We assessed whether a dual biomarker combining PD-L1 on CTCs a... ...