The murine splenocytes, TILs and TACs were stained with fluorescein isothiocyanate (FITC)-conjugated CD3 (Biolegend), allophycocyanin (APC)-conjugated CD4 (Biolegend), phycoerythrin (PE)/Cy5.5-conjugated CD8 (Biolegend), PE-conjugated NK1.1 (Biolegend), PE/Cy5.5-conjugated CD19 (Biolegend), APC-conjugated BTLA (CD272) (Biolegend), or PE-conjugated CD223 (eBioscience) for different experiments. Flow cytometric analyses were performed using a BD FACSCalibur flow cytometer (BD Bioscience) with CELLQuest software [23 (link), 24 (link)].
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