The flow cytometry was carried out using the BD Cell Analyzer (BD Bioscience), and the data were analyzed using FlowJo 10 software (BD Bioscience). The analysis of Kupffer cells and LNPCs was performed as described previously with some modifications [6 (link)]. Briefly, cells were collected and incubated with primary antibodies that might include IgG2a-PE, IgG1-APC, APC anti-human CD11b antibody (Biolegend, #301310), and/or F4/80-PE (eBioscience, #12-4801-82) at 4°C for 30 minutes. Cells were then rinsed with PBS three times followed by flow cytometry analysis.
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