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4 protocols using anti cd80 apc

1

Flow Cytometric Characterization of nDCs

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Purity and phenotype of nDCs after immunomagnetic isolation were determined by flow cytometry with a FACSVerse® (BD biosciences, San Jose, CA) or MACS Quant® (Miltenyi Biotec). For this purpose, the following primary monoclonal antibodies and the appropriate isotype or fluorescence minus one controls were used: anti-CD1c-Viobright-FITC, anti-BDCA2-PE, anti-CD123-APC, anti-CD20-PE-Vio770, anti-CD45-APC-Vio770, anti-CD14-Viogreen, anti-FcεRI-BioBlue, anti-CD14-FITC, anti-CD15-PE, anti-CD56-APC, anti-CD3-VioBlue, anti-HLA-ABC-APC, anti-HLA-DR/DP/DQ-APC, anti-CCR7-APC, anti-CD80-APC, anti-CD83-APC, and anti-CD86-APC (all Miltenyi Biotec). Details are depicted in Supplementary Table 2. The purity of the nDC product was defined as the percentage of nDCs (sum of CD123+BDCA2+ pDC plus CD1c+CD20- cDC2) of all viable cells in the nDC product. After 6 h of protamine/mRNA stimulation, cytokine production of nDCs was measured in the supernatant by cytometric bead array according to the manufacturer’s instruction (Miltenyi Biotec).
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Immune Cell Surface Marker Analysis

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After blocking the unspecific binding of Fc-receptor for 10 min on ice in 10 µL of a solution containing 5 mg/ml human IgG (IgG1 66.6%, IgG2 28.5%, IgG3 2.7%, IgG4 2.2%; Flebogamma, Grifols, Frankfurt, Germany), cells were washed in PBS/BSA (DRFZ, Berlin, Germany). Antibody staining was performed for 10 min at 4°C for the detection of surface marker expression using anti-CD14-FITC and anti-CD11b-PE (both from DRFZ, Berlin, Germany), anti-CD16-PE-Vio770, anti-CD80-APC and anti-HLA-DR-VioBlue (all from Miltenyi Biotech, Bergisch Gladbach, Germany; see also Table 1). Apoptosis and necrosis of monocytes were quantified by Annexin V (Biolegend, San Diego, USA) and 7-AAD staining (BD Biosciences, San Jose, USA) (gating strategy provided in Figure S1, reagent concentration provided in Tables 1, 2) according to the manufacturer’s instructions. Data were acquired using a BD FACSCanto™ II (BD Biosciences, San Jose, USA) and processed by FlowJo v7.6.5 (BD Biosciences, San Jose, USA).
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Phenotypic and Functional Analysis of cDC2s and pDCs

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Purity and phenotype of cDC2s and pDCs after immunomagnetic isolation were determined by flow cytometry with a FACSVerse® (BD biosciences) or MACS Quant® (Miltenyi Biotec). Purity was analyzed directly after CliniMACS Prodigy isolation. For this purpose, the following primary monoclonal antibodies (mAbs) and appropriate fluorescence minus one controls were used: anti-CD1c-Viobright FITC, anti-BDCA2-PE, anti-CD123-APC, anti-CD20-PE-Vio770, anti-CD45-APC-Vio770, anti-CD14-Viogreen, anti-FcεRI-BioBlue, anti-CD14-FITC, anti-CD15-PE, anti-CD56-APC and anti-CD3-BioBlue. The phenotype of cDC2s and pDCs after 3 hours of pR stimulation was analyzed using the following mAbs and appropriate isotype controls: anti-HLA-ABC-APC, anti-HLA-DR/DP/DQ-APC, anti-CCR7-APC, anti-CD80-APC, anti-CD83-APC and anti-CD86-APC (all Miltenyi Biotec). After 6 hours of pR stimulation cytokine production of cDC2s and pDCs was measured in the supernatant by cytometric bead array according to the manufacturer’s instruction (Miltenyi Biotec).
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Phenotypic Characterization of Isolated mDCs and pDCs

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Purity and phenotype of mDCs and pDCs after CliniMACS isolation were determined by flow cytometry with a FACSVerse (BD Biosciences, San Jose, CA, USA) or MACS Quant (Miltenyi Biotec). The following primary monoclonal antibodies and the appropriate isotype or fluorescence minus one controls were used: anti-CD1c-Viobright FITC, anti-BDCA-2-PE, anti-CD20-PE-Vio770, anti-CD123-APC, anti-CD45-APC-Vio770, anti-CD14-VioGreen, anti-FcεRI-VioBlue, anti-CD14-FITC, anti-CD15-PE, anti-CD56-APC, anti-CD3-BioBlue, anti-HLA-ABC-APC, anti-HLA-DR,DP,DQ-APC, anti-CCR7-APC, anti-CD80-APC, anti-CD83-APC and anti-CD86-APC (all Miltenyi Biotec).
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