Figure 5

Immunostaining of Foxp3+ cells and IL-17+ cells in recipients’ conjunctiva. A few foxp3+ cells could be found in the conjunctiva of recipients treated with either ATRA or TGF-β at 2wks postsurgery. At 4wks and 8wks, Foxp3+ cells could be found in the conjunctiva of recipients treated with either ATRA or TGF-β, while IL-17+ cells were visible in control solution-treated ones. Recipients with a mixed treatment presented more Foxp3+ cells compared with those with a single treatment. Foxp3+ cells were stained as red and IL-17+ cells were green.