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4 protocols using anti il17a alexa647

1

Multiparametric Flow Cytometry Analysis

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Cells were washed in PBS + 10% FCS and stained with primary antibodies (anti-CD45RA-BV421, anti-CD62L-APC-Cy7, anti CDCD49f-FITC, anti-CD51-APC, anti CD493-FITC, anti-CD49b-APC, anti-CD49a-APC, all Biolegend; anti-IL17a-Alexa647 and anti-CD146/MCAM-PE, both BD Bioscience) for 30 min on ice. Intracellular staining of IL-17a was performed by implementation of the CytoFAST Fix/Perm buffer set (Biolegend) exactly according to the manufacturer’s instructions. The cells were fixed in 4% PFA (Sigma) and the stainings were assessed on a BD Canto II flow cytometer.
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Intracellular Cytokine Profiling of T Cells

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For intracellular cytokine staining for PBMC or CD4+ T cells, assays were carried out with staining buffers and antibodies from BD Biosciences. Briefly, cells were seeded into a 96-well plate (up to 1 × 106 cell per well) and stimulated with PMA (100 ng/ml) and ionomycin (1 μg/ml) in the presence of GolgiStop for 4 h. After stimulation, cells were fixed with BD Cytofix fixation buffer and washed with BD Perm/Wash buffer. Cells in each well were equally divided into two wells, with one for intracellular cytokine staining and the other for isotype control staining. The following fluorophore-conjugated antibodies from BD Biosciences were used for staining analysis or as isotype controls: anti-CD4-pacific blue (clone: RPA-T4; 1:330), anti-IL-17A-Alexa647 (clone: N49-653; 1:20), anti-IFN-γ-FITC (clone: B27: 1:100), anti-IL-10-PE (clone: JES3-19F: 1:660), mouse IgG1-Alexa647 (clone: MOPC-21; 1:40), mouse IgG1-FITC (clone: MOPC-21; 1:100), and rat IgG2a-PE (clone: R35-95: 1:660). Stained cells were analyzed with a BD LSR II cytometer. Cytokine secretion in CD4+ lymphocytes was accessed with FlowJo.
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Cell Viability and Immune Cell Profiling

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Cell survival of MEFs was quantitated using the CellTiter-Glo Luminescent Cell Viability Assay per manufacturer’s instructions (Promega). The following antibodies were purchased (BD bioscience) and used for FACS studies: anti-CD4-PEcy7, anti-CD4-APC, anti-CD8-PEcy7, anti-CD8-APC, anti-CD11b–PEcy7, anti-Gr1-APC, anti-CD45.1-APC, anti-CD45.1-FITC, anti-CD45.2-APC, anti-CD45.2-FITC, anti-CD44-FITC, anti-CD62L–PE, anti-CD62L–APC, anti-TCRβ-FITC. Live cells were quantitated by flow cytometry of DAPI-negative cells. For intracellular cytokine expression, cells were incubated with PMA (50 ng/ml, Sigma-Aldrich), ionomycin (250 ng/ml, Sigma-Aldrich) and GolgiPlug (1 µl/ml, BD Bioscience) for 4 hrs before harvesting. Cells were stained using anti-CD4-e450 (Tonbo), anti-IFNγ−PE (BD Bioscience), anti-IL17A–Alexa647 (BD Bioscience), Live/Dead cell stain kit (Invitrogen) and Cytofix/Cytoperm kit (BD Bioscience).
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Cell Viability and Immune Cell Profiling

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Cell survival of MEFs was quantitated using the CellTiter-Glo Luminescent Cell Viability Assay per manufacturer’s instructions (Promega). The following antibodies were purchased (BD bioscience) and used for FACS studies: anti-CD4-PEcy7, anti-CD4-APC, anti-CD8-PEcy7, anti-CD8-APC, anti-CD11b–PEcy7, anti-Gr1-APC, anti-CD45.1-APC, anti-CD45.1-FITC, anti-CD45.2-APC, anti-CD45.2-FITC, anti-CD44-FITC, anti-CD62L–PE, anti-CD62L–APC, anti-TCRβ-FITC. Live cells were quantitated by flow cytometry of DAPI-negative cells. For intracellular cytokine expression, cells were incubated with PMA (50 ng/ml, Sigma-Aldrich), ionomycin (250 ng/ml, Sigma-Aldrich) and GolgiPlug (1 µl/ml, BD Bioscience) for 4 hrs before harvesting. Cells were stained using anti-CD4-e450 (Tonbo), anti-IFNγ−PE (BD Bioscience), anti-IL17A–Alexa647 (BD Bioscience), Live/Dead cell stain kit (Invitrogen) and Cytofix/Cytoperm kit (BD Bioscience).
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