For flow cytometry staining, single cell homogenates were blocked in 2% rat serum for 10 min at room temperature, incubated with specified antibodies for 30 min on ice, fixed with BD FACS Lysis buffer for 10 min at room temperature, resuspended in PBS, and run on the LSRII (BD). Samples were analyzed using FlowJo software (BD).
The following anti-mouse antibodies conjugated to fluorochromes were utilized for flow cytometry: (company, clone) α-CD3ε (eBioscience/Invitrogen, 145–2C11), α-CD4 (Biolegend, GK1.5), α-CD8α (Biolegend, 53–6.7), α-CD11b (eBioscience/Invitrogen, M1/70), α-CD11c (eBioscience/Invitrogen, N418), α-CD19 (eBioscience/Invitrogen, 1D3), α-CD40 (Biolegend, HM40–3), α-CD44 (BD, IM7), α-CD45.1 (eBioscience/Invitrogen, A20), α-CD45.2 (Biolegend, 104), α-CD69 (Biolegend, H1.2F3), α-CD103 (Biolegend, 2E7), α-F4/80 (eBioscience/Invitrogen, BM8), α-IFNAR1 (Biolegend, MAR1–5A3), α-IFNγ (eBioscience/Invitrogen, XMG1.2), α-MHCII (eBioscience/Invitrogen, M5/114.15.2), α-TNFα (eBioscience/Invitrogen, MP6-XT22).