Mesenteric lymph nodes were collected, ground and filtered through 100 μm cell strainers. Cells were counted and stimulated using Cell stimulation Cocktail plus transport inhibitors 500× (eBioscience) for 4 h. At the end of stimulation, cells were harvested, fixed using IC fixation buffer and permeabilized using 1× permeabilization buffer (eBioscience). Cells were divided into two parts then stained with antibodies as follows: (a) anti-CD3-APC (17-0032-82, eBioscience), anti-CD4-FITC (MA5-17443, eBioscience), and IL-17A-PerCP-Cyanine5.5 (45-7177-82, eBioscience); (b) anti-CD3-APC (17-0032-82, eBioscience), anti-CD4-FITC (MA5-17443, eBioscience), anti-IL-4-PE (12-7041-82, eBioscience) and anti-IFN gama-PerCP-Cyanine5.5 (45-7311-82, eBioscience). Single cell suspensions were examined using BD Accuri C6 and the data were analyzed using C6 software. The number of IL-17A+CD4+CD3+, IFNγ+ CD4+CD3+ and IL-4+ CD4+CD3+cells were calculated.
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