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4 protocols using anti ifnγ af700

1

Multiparametric Flow Cytometry Analysis

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Cells were labelled with flow antibodies for 15 minutes in the dark in PBS containing 2% BSA. Labelled cells were washed twice and resuspended in PBS containing 2% BSA. The prepared samples were analyzed using an LSR-II flow cytometer (BD Bioscience) or sorted using an Aria II cell sorter (BD Bioscience). Anti-CD19-PeCy7 (561739), anti-CD3-PeCy7 (552774), anti-NK1.1-BV421 (562921), anti-NKp46-FITC (560756), anti-NKp46-AF647 (560755), anti-CD49b-PE (553858), anti-CD49a-PerCP-Cy5.5 (564862), anti-CD62L-APC (553152), anti-T-bet-APC (561264), anti-CD45.2-AF700 (560693), anti-CD45.2-FITC (553772), anti-Gata3-AF647 (560068), anti-RORγt-PE (562607), anti-CD127-V450 (561205), anti-CD117-PE (553869), anti-LPAM-1-APC (562376), anti-Flt3-BV421 (566292), anti-Ly-6A/E-APC (565355), and anti-CD122-PE (553362) were purchased from BD Bioscience. Anti-IFN-γ-AF-700 (505823) and anti-CD25-Pacific Blue (102022) were purchased from Biolegend. Anti-CD253-APC (17-5951-82), anti-Eomes-PE (12-4875-82), and anti-CD127-PerCP-Cy5.5 (45-1271-80) were purchased from eBioscience.
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2

Multiparameter Flow Cytometry Characterization

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After stimulation, cells were stained for surface and intracellular markers as
performed previously [23 (link), 24 (link)]. The following antibodies and dyes were
used; Aqua LIVE/DEAD (Invitrogen), anti-CD3 BUV396 (UCHT1; BD Biosciences),
anti-CD19 BV510 (SJ25C1; BioLegend), anti-CD14 BV510 (M5E2; BioLegend), anti-CD4
BUV805 (SK3; BD Biosciences), anti-CD8 BV786 (RPA-T8; BD Biosciences), anti-CCR7
PE/Cy7 (G043H7; BioLegend), anti-CD45RA PE/TR (MEM-56; Invitrogen), anti-KLRG1
eFlour710/PerCP (13F12F2; eBioscience), anti-IFN-γ AF700 (B27;
BioLegend), anti-IL-2 APC/Cy7 (MQ1-17H12; BioLegend), anti-TNF-α Pacific
Blue (MAb11; BioLegend), anti-Perforin-1 PE (B-D48; Cell Sciences),
anti-Granzyme B PE/Cy5.5 (GB11; Invitrogen), anti-T-bet BV605 (4B10; BioLegend),
and anti-Eomesodermin (EOMES) eFlour660 (WD1928; eBioscience). Flow cytometric
analysis was performed on a LSRFortessa (BD Biosciences) and analyzed by Flowjo
v10.6.1. Statistics analysis was done by SPICE V6 [25 (link)] and GraphPad Prism 8.
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3

Comprehensive Immune Cell Profiling

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Cells from mesenteric lymph nodes were isolated and stimulated as previously described (Ramanan et al., 2016 (link)). Stimulated cells were stained with anti-CD45 Pacific Blue, anti-CD3ε FITC, anti CD4 APC-Cy7, and anti-IFNγ AF700 from Biolegend and anti-CD19 PerCP Cy5.5 from eBioscience. Fixation and permeabilization buffers from Biolegend were used for intracellular cytokine staining, and a fixable live/dead stain from Biolegend was used to exclude dead cells. For nuclear staining, unstimulated cells were stained with anti-CD45 Pacific Blue, anti-CD3 FITC, anti-CD4 APC-Cy7, anti-FoxP3 PE-Cy7, and anti-Tbet APC from Biolegend, and anti-CD19 PerCP Cy5.5 and anti-GATA3 PE from eBioscience using the Foxp3 staining kit (eBioscience). Flow cytometric analysis was performed on a CytoFLEX analyzer (Beckman Coulter) and analyzed using FlowJo 10.0.8.
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4

Multi-parameter NK Cell Phenotyping

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NK cells were stained with anti-CD56 PE/Cy7, anti-CD16 BV510, anti-CD25 BV421, anti-HLA-DR BV650, anti-CD69 APC (all from BioLegend), Fixable Viability Stain 780 (BD Biosciences), and anti-CD3 BUV395 (BD Biosciences) for 30 min at 4°C, followed by washing in FACS buffer [PBS pH 7.2; 0.5% BSA (Sigma); 2 mM EDTA (Merck)] and fixed with 2% paraformaldehyde (Merck). For the detection of NK cell-expressed cytokines, NK cells were permeabilized and fixed using the Fixation/Permeabilization Solution kit (BD Biosciences) following the manufacturer's protocol and stained with anti-IFNγ AF700 (BioLegend). NK cells were analyzed for marker expression on the LSRFortessa X-20 (BD Biosciences) and analyzed using FlowJo software (Tree Star).
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