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6 protocols using anti cd3e 145 2c11

1

Generation of Murine Regulatory T Cells

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CD4+CD44CD62L+ naive T cells were cultured with 3 mg/mL plate-bound anti-CD3e (145-2C11, BioLegend) in the presence of 1 mg/mL anti-CD28 (37.51, BioLegend), 3 ng/mL TGF-β (R&D Systems), 10 ng/mL IL-2, 5 mg/mL anti-IL-4 (11B11, BioLegend), and 5 mg/mL anti-IFN-γ (XMG1.2, BioLegend) for 5 days. Cells were then rested in the larger cell-culture plate for another 3 days and subjected to the analysis.
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2

Immune Cell Profiling in Draining Lymph Nodes

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Draining lymph nodes (dLNs) were harvested and single-cell suspensions were prepared. For the exclusion of dead cells, the Zombie fixable viability kit (BioLegend) was used. Cells were incubated in FACS staining buffer (PBS containing 1% BSA and 5 mM EDTA) with anti-FcγIII/II receptor antibody (BD), and anti-CD45 (30-F11, BioLegend), anti-CD4 (Gk1.5, BioLegend), anti-CD8 (53–6.7, BioLegend), anti-CD3e (145-2C11, BioLegend), anti-B220 (RA3-6B2, eBioscience), and anti-PD-1 (29F.1A12, BioLegend) antibodies. For intracellular IFN-γ and Gzm B staining, cells were stimulated with 25 ng/ml PMA and 1 µg/ml Ionomycin in RPMI 1640 medium supplemented with 10% fetal bovine serum, 2 mM l-glutamine, 100 U/ml penicillin, and 100 µg/ml streptomycin (complete RPMI) with monensin (Golgi Stop, BD). After five hours of incubation, cell surface staining was followed by intracellular cytokine staining using the Fix/Perm Kit (BD) in accordance with the manufacturer’s instructions with anti–IFN-γ (XMG1.2, BD) and anti-Gzm B (NGZB, eBioscience) antibodies. Fluorescence-minus-one controls were used as negative controls. Cells were acquired on the Gallios (Beckman-Coulter) and data were analyzed using the FlowJo software (v7.6.5).
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3

Generation of Murine Regulatory T Cells

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CD4+CD44CD62L+ naive T cells were cultured with 3 mg/mL plate-bound anti-CD3e (145-2C11, BioLegend) in the presence of 1 mg/mL anti-CD28 (37.51, BioLegend), 3 ng/mL TGF-β (R&D Systems), 10 ng/mL IL-2, 5 mg/mL anti-IL-4 (11B11, BioLegend), and 5 mg/mL anti-IFN-γ (XMG1.2, BioLegend) for 5 days. Cells were then rested in the larger cell-culture plate for another 3 days and subjected to the analysis.
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4

Multiparametric Flow Cytometry Analysis

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Single cell suspension was obtained as previously described (34 (link)). The cells were stained with antibodies, purchased from either BioLegend [anti-CD3e (145-2C11, RRID: AB_312660), anti-CD8𝛼 (53-6.7, RRID: AB_2888883), anti-CD11b (M1/70, RRID: AB_312791), anti-CD25 (PC61.5, RRID: AB_312847), anti-CD29 (HMβ1-1, RRID: AB_312885), anti-CD31 (390, RRID: AB_10613644), anti-CD45 (30-F11, RRID: AB_2563598), anti-CD140a (PDGFRα, RRID: AB_1953268, APA5), anti-CD324 (EpCAM, G8.8, RRID: AB_1134172), anti-VEGFR3 (AFL4, AB_10680790), and anti-PDPN (8.1.1, RRID: AB_2629802)] or from Thermo Fisher Scientific [anti-CD4 (RM4-5, RRID: AB_464902), anti-CD69 (H1.2F3, RRID: AB_1210795), anti-FoxP3 (FJK-16s, RRID:AB_467575), and anti-NK1.1 (PK136, RRID: AB_2536075)] or from Abcam [anti-αSMA (EPR5368, RRID: AB_11129103)]. Cells were also stained with Fixable Viability Dye (Thermo Fisher Scientific) and dead cells were gated out from the analysis. Cell types were determined as following; lymphatic cells: CD45+/CD3+, CD8 T+ cells: CD45+/CD3+/CD8+, Tregs: CD45+/CD3+/CD4+/FoxP3+, cancer cells (MOC1): CD45/ CD31/EpCAM+/CD140a/VEGFR3, cancer cells (MC38-luc): CD45/CD31/CD29+/αSMA, CAFs (MOC1): CD45/CD31/EpCAM/CD140a+/VEGFR3, CAFs (MC38-luc): CD45/CD31/αSMA+, vascular endothelial cells: CD45/CD31+/EpCAM/CD140a/VEGFR3, lymphatic endothelial cells: CD45/CD31/EpCAM/CD140a/VEGFR3+.
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5

Fluorescent Antibody-Based Immune Cell Sorting

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Fluorescent-dye-conjugated antibodies were purchased from BD-Pharmingen (USA) (anti-CD45.2, 104; anti-CD45R, RA3–6B2); eBioscience (USA) (anti-CD103, 2E7; anti-MHC II, M5; anti-F4/80, BM8; anti-CD11b, M1/70; anti-CD11c, N418; anti-Siglec F, E50–2440; anti-CD3e,145–2C11; anti-Ly6G, RB6–8C5) or BioLegend (USA) (anti-CD64 X54–5/7.1). Live/Dead staining was performed using Aqua fixable dead cell stain (Invitrogen). Macrophages were sorted as Aqua–CD45+Lin–(CD3–B220–Siglec F–LY6G–) MHCII+F4/80+CD11B+CD11C+CD103–) using a FACS Aria cell sorter flow cytometer (Becton Dickinson).
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6

NK Cell Phenotyping in Lm-Infected Mice

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Spleens were harvested from Lm infected or naïve ADAPwt/wt × NKp46-Crehet and conditional ADAPfl/fl × NKp46-Crehet mice and processed into single cell suspension. For flow cytometric analysis single cell suspensions were treated with anti-CD16/32 (BioLegend). Cell suspensions were furthermore surface stained with a lineage mix (anti-CD3e, 145-2C11; anti-CD4, GK1.5; anti-CD8, 53-6.7; anti-CD19, 6D5; and anti-TER-119, TER-119; all FITC from BioLegend, except anti-TER-119 which was from Thermo Fisher). Furthermore, the following antibodies were used: anti-NK1.1 (APC-Cy7, PK136), anti-CD122 (PE-Cy7, TM-ß1), anti-CD11b (BV510, M1/70), anti-CD18 (AF647, M18/2), anti-CXCR4 (APC, L276F12), anti-CD29 (PE, HMß1-1) all from BioLegend as well as anti-NKp46 (V450, 29A1.4, BD Biosciences), and anti-CD11a (PE, 2D7, BD Pharmingen). Afterwards, cells were analyzed with a BD LSR Fortessa (BD Biosciences). Flow cytometric data were analyzed using the BD FACS Diva v6.1.3 software.
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