Fig. 6.

Small intestine CD4⁺ IELs in CD103^Tgβ7^Tg mice. A Identification of CD45⁺-gated αβ T cells in WT and CD103^Tgβ7^Tg mice (left). Bar graphs show frequencies of αβ T cells among CD45⁺-gated SI IELs (right). Data are representative of 5 independent experiments with a total of 6 WT and 5 CD103^Tgβ7^Tg mice. B Contour plots show CD4 versus CD8α profiles of αβ T cells among SI IELs (left). Bar graphs show frequency and number of CD4⁺ and the frequency of CD8α⁺ T cells among CD45⁺ TCRβ⁺-gated SI IELs in WT and CD103^Tgβ7^Tg mice (right). Results are the summary of 5 independent experiments with a total of 6 WT and 5 CD103^Tgβ7^Tg mice. C Frequency of CD8αβ and CD8αα αβ T cells among IELs of WT or CD103^Tgβ7^Tg mice. Contour plots are representative (left), and bar graphs are a summary of 5 independent experiments with a total of 6 WT and 5 CD103^Tgβ7^Tg mice. D CCR9 expression on CD4 T cells from spleen, LN, and IELs of CD103^Tgβ7^Tg mice. The results are representative of 3 independent experiments