five 1.5 mL microcentrifuge tubes of 50 μL each. One tube was
without any reagent, and the other four tubes contained 5 μL
of PerCP-Cy 5.5 rat antimouse CD4 reagent (BD Biosciences, Cat no.
561115), 5 μL of PE rat antimouse IL-17A (BD Biosciences, Cat
no. 561115), and 5 μL of PE rat antimouse IL-17A (BD Biosciences,
Cat no. 561115), mouse IL-17A (BD Biosciences, Cat no. 561020), Alexa
Fluor 647 rat antimouse Foxp3, and Th17/Treg phenotyping cocktail
(BD Biosciences, Cat no. 560767). The reaction was carried out for
30 min at room temperature, protected from light. After the reaction
was completed, 1 mL of stain buffer was added, and the solution was
centrifuged at 500g for 5 min to remove the stain,
and the washing procedure was repeated once more. Finally, the cell
precipitate was dissolved in 500 μL of stain buffer, and it
was ready for use.