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3 protocols using il 5 pe

1

Immunological and Biochemical Profiling

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CD4-Percp (eBioscience, 46-0041), IL-4-APC (MACS, 130-103-002), IL-5-PE (eBioscience, 12-7052), and IL-13-PE Cy7 (eBioscience, 25-7133) were used for flow cytometry. Anti-IL-33 (Abcam, Ab54385) was used for immunofluorescence of mice lung tissues. Anti-PTRF (CST, 46379), anti-Flag (Sigma-Aldrich, M2), anti-HA (Santa Cruz, sc-7392), anti-GFP (Santa Cruz, sc-9996), anti-pTyr (Santa Cruz, sc-7020), anti-β-Actin (Sungene biotech, KM9001T), anti-α-Tubulin (Sungen biotech, KM9003T), and anti-Lamin B (CST, 13435) were used for immunoblotting.
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2

Cytokine Production in T Cells

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The cells were incubated with culture media containing 200 μg ml−1 brefeldin A (BD Biosciences) with or without stimulation with 1 × phorbol 12-myristate 13-acetate (Calbiochem, EMD Chemicals, Inc., Gibbstown, NJ, USA) and ionomycin (1 μg ml−1; Sigma, St Louis, MO, USA) for 4 h at 37 °C. The plate was then centrifuged at 1000 r.p.m. for 3 min at 4 °C. After surface staining with anti-human anti-CD3, CD4 and CD8, the cells were fixed and permeabilized for intracellular staining. Cells were incubated with anti-TNF-α-allophycocyanin (Biolegend), anti-IFN-γ-FITC (Biolegend) and IL-5-PE (eBioscience). Briefly, cells were washed in wash buffer and resuspended in 200 μl of wash buffer and transferred into fluorescence-activated cell sorting tubes to be analyzed with flow cytometry as described above.
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3

T-cell Cytokine Response Assay

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DO11.10+/CD4+ T-cells and BMDCs were co-cultured as described in the section “Stimulation of carboxyfluorescein succinimidyl ester (CFSE)-labeled OVA-specific T-cells” with or without 20 μg/mL OVA peptide (sequence 323–339; GenScript) for 72 hours. On day 3, Brefeldin A (20 μg/mL; eBioscience) was added to the cultures for 2 hours. At the end of the culture period, cells were incubated with antibodies against CD4 and the DO11.10 T-cell receptor (KJ-126) for 20 minutes on ice prior to fixation in 1% formalin solution for 20 minutes. Cells were incubated in permeabilization buffer (PBS + 0.1% saponin +10% FCS) for 5 minutes at room temperature before the following anti-cytokine antibodies were added for 30 minutes: tumor necrosis factor (TNF)α-eF450, interferon (IFN)γ-eF450, interleukin (IL)10-PE, IL5-PE, IL17-PE-Cy7, and IL4-APC (all eBioscience).
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