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5 protocols using legendplex th cytokine panel

1

Cytokine Profiling in Serum and Supernatant

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Serum and supernatent cytokine were measured by cytokine bead array using the LEGENDPlex Th cytokine panel according to the manufacturer’s instructions (Biolegend) on a BD Fortessa flow cytometer (BD Biosciences).
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2

Intracellular Cytokine and Activation Assays

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For detection of intracellular cytokines, cells after coculture were activated with PMA (50 ng/ml; Sigma) and ionomycin (1 μM;Merk) for 6 h in the presence of GolgiPlug (1 μl/ml BD Biosciences) for the final 4 h. Cytokines in coculture supernatants were analyzed by LEGENDplex Th cytokine panel (BioLegend).
For activation of eTAC, cDC and pDC, purified subsets were cultured at 5 × 103 cells per well in the presence of LPS (100 ng/ml; Sigma), poly(I:C) (25 μg/ml;Sigma) and R848 (25 μg/ml; Invivogen), or with PMA (50 ng/ml; Sigma) and ionomycin (1 μM;Merk). Culture supernatants were harvested after 24 h and analyzed by a custom LEGENDPlex human inflammation panel (BioLegend).
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3

Multiplex Cytokine Profiling in BAL

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Cytokines were quantified in undiluted BAL using a 13-plex cytometric bead array according to the manufacturer’s instructions (LEGENDplex™ Th-cytokine panel, BioLegend). The following cytokines were analyzed (detection limits): IL-2 (2.22 pg/ml), IL-4 (1.34 pg/ml), IL-5 (4.07 pg/ml), IL-6 (0.69 pg/ml), IL-9 (1.22 pg/ml), IL-10 (6.65 pg/ml), IL-13 (1.70 pg/ml), IL-17A (2.14 pg/ml), IL-17F (1.85 pg/ml), IL-21 (1.72 pg/ml), IL-22 (2.15 pg/ml), IFN-γ (1.39 pg/ml), TNF-α (2.09 pg/ml).
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4

Multiplex Cytokine Quantification in BAL

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Cytokines were quantified in undiluted BAL supernatant in duplicates using a 12-plex cytometric bead array according to the manufacturer´s instructions (LEGENDplex™ Th cytokine panel, BioLegend). IFN-γ (0.56 pg/mL), IL-5 (1.72 pg/mL), TNF-α (2.63 pg/mL), IL-2 (1.03 pg/mL), IL-6 (2.46 pg/mL), IL-4 (0.71 pg/mL), IL-10 (10.523 pg/mL), IL-9 (1.60 pg/mL), IL-17A (0.70 pg/mL), IL-17F (1.47 pg/mL), IL-22 (3.57 pg/mL) and IL-13 (1.05 pg/mL) were analyzed (detection limits). Values that were below the detection limit were evaluated as zero.
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5

Silencing CEBPB in T Cells Modulates DC-Mediated Immune Responses

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DCs were enriched from PBMCs using the Pan-DC enrichment kit (Miltenyi, 130-100-777), and enriched DCs were stained with BV421 anti-human CD11c (BioLegend, 301628, 5 μl per sample), APC Cy7 anti-human HLA-DR (BioLegend, 307618, 5 μl per sample), FITC anti-human CD3 (BD Biosciences, 555232, 10 μl per sample) and PE anti-human CD123 (BD Biosciences, 340545, 5 μl per sample) antibodies. T cells were sorted from the non-DC fraction as CD3+ cells. DCs sorted as CD3CD11c+HLA-DR+CD123 were silenced and 48 h cells were stimulated with LPS (100 ng ml−1) and 10 μg ml−1 of OVA 323-339 (SP-51023-1, Genemed) in the presence of propyzamide (10 μM) or vehicle. After 6 h, cells were washed and co-cultured with allogenic T cells at a 1:10 ratio for 48 h. Cytokines were quantified in the supernatants using the LEGENDplex Th cytokine panel (BioLegend, 741027). CEBPB was silenced on T cells using the Human T cell nucleofection kit (Lonza, VPA-1002) and the Accell Human CEBPB-siRNA smart pool (Dharmacon, E-006423-00-0005). T cells were then activated by plate-bound anti-human CD3 (Thermo Fisher Scientific, 16-0037-85) and soluble anti-human CD28 (Thermo Fisher Scientific, 16-0289-85) in presence of propyzamide (10 μM) or vehicle.
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