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3 protocols using f4 80 buv395

1

Liver Macrophage Phenotyping and Pyroptosis

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Animals were sacrificed and livers were collected as described above. Fractionated immune cells were collected. Cells were incubated with CD16/CD32 FcR-blocking antibody (BD Bioscience, 553142) on ice for 20 minutes. Live/Dead staining was performed using Zombie Aqua (Biolegend, 423101) with a 30-minute incubation on ice. HMΦ surface staining was performed using the following panel: APC-Cy7_CD45 (BioLegend, 103116), FITC_I-A/I-E (MHCII) (BioLegend, 107605), PerCP-Cy5.5_CD11b (BioLegend, 101228), BV510_Ly6G (BioLegend, 127633), BUV395_F4/80 (BD Biosciences, 565614), BV421_CCR2 (BioLegend, 150605), APC_Ly6C (BioLegend, 128016), PE-Cy7_CD206 (ThermoFisher, 25-2061-82), BV785_CD86 (BioLegend, 105043). HMΦ pyroptosis was performed using the following panel: FAM-LEHD-FMK (caspase-11 activity assay), APC-Cy7_CD45 (BioLegend, 103116), BV510_Ly6G (BioLegend, 127633), PerCP-Cy5.5_CD11b (BioLegend, 101228), Ly-6C_AF700 (BioLegend, 128024), BUV395_F4/80 (BD Biosciences, 565614), GSDMDC1_AF674 (Santa Cruz Biotechnology, sc-393581 AF647). Flow cytometric data was acquired using LSR-II Flow Cytometer (BD Bioscience). Mean fluorescent intensity (MFI) and population percentages were analyzed using FlowJo (Ashland, OR).
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2

Comprehensive Immune Profiling of Tumor Cells

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In order to obtain optimal results, a minimum of 40 million tumor cells were blocked with anti-CD16/32 antibody then magnetically labeled using CD4 T cell isolation kit (Miltenyi Biotec Inc., 130-104-454). A minimum of 5 million CD4 positive cells were stained with CD4-APC (eBioscience, 17-0041-81) and then fixed and permeabilized using the Foxp3 staining kit (Thermofisher, 00-5523-00) and stained intracellularly with Foxp3-FITC (eBioscience, 11-5773-80). CD4 negative cells were stimulated using PMA-Ionomycin and Golgi stop then stained for surface markers CD8-BV650 (BD bioscience, 563822), Gr-1-APC-Cy7 (BD bioscience, 557661), CD11b-APC (Biolegend, 101211), CD206-BV421 (Biolegend, 141717), F4/80-BUV395 (BD bioscience, 565614) and fixed then permeabilized using the Foxp3 staining kit and stained intracellularly for IFN-γ-PE.
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3

Multiparametric Flow Cytometry for Immune Profiling

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First, single cell suspensions were incubated for 20 min in Fixable Viability Dye (FVD) eFluor™ 780 (eBioscience) in the dark on ice to exclude dead cells. After adding 1 µg TruStain™ FcX (Biolegend), immunostaining was performed on ice for 30 min (protected from light) with the following antibodies: CD45-AF700 (# 103,128), CD45-BV785 (# 103,149), Ly6C-APC (# 128,015), Ly6C-FITC (# 128,005), Ly6G-PE/Dazzle594 (# 127,648), CD11c-BV605 (# 117,334), CD8-PerCPCy5.5 (# 100,734), PD1-APC (# 135,210), CD62L-BV605 (# 104,438), CD44-FITC (# 103,005), CD19-FITC (# 115,506), CD19-PECy7 (# 115,520), PD1-BV421 (# 135,221) (all antibodies from Biolegend), and CD11b-BUV737 (# 612,801), F4/80-PE (# 565,410), Siglec-F-PErCP5.5 (# 565,526), F4/80-BUV395 (# 565,614), CD3-BUV395 (# 563,565), CD4-BUV496 (# 564,667), CD44-BUV737 (# 612,799), Siglec-F-PE (# 562,068) (all antibodies from BD Biosciences).
After staining, cells were washed and fixed using IC Fixation Buffer (eBioscience). Samples were either analyzed on a BD LSRFortessa™ or BD Canto II™ flow cytometer with FACSDiva software (BD Biosciences). Analyses and compensation were performed with Flowjo software (TreeStar). Fluorescence minus-one-samples were used to define gates. See Kienzl et al. [10] (link) (Supplementary material) for gating strategies.
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