Leukocytes were isolated from the liver in the way as described previously40 (link). For flow cytometry, cells were stained for surface antigens with anti-NK1.1, anti-CD3, anti-CD4, anti-CD8α, anti-CD19, anti-CD44, anti-CD62L (BioLegend, San Diego, CA), or/and for intracellular antigens with anti-IFN-γ, anti-IL-4, anti-IL-17A, anti-TNF-α and anti-IL-10 (BioLegend). IgG isotype controls (Biolegend) were used in parallel. To detect Treg cells, cells were stained with anti-NK1.1, anti-CD3, anti-CD4, anti-CD25 at 4 °C for 30 minutes; and incubated with anti-mouse Foxp3 antibodies according to the manufacturer’s instructions (eBioscience). Methods were the sameas those described previously9 (link).
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