Enhanced IL-17A/IL-22-producing skin T cell activation and inflammation
in IMQ-treated CCR10-knockout mice. (A,B,C,D) H&E stained
sections and average epidermal thickness (A), flow cytometric (FC) analysis of
γδT cells (B) and their IL-17A/IL-22 production (C), and average
percentages and numbers of IL-17A/IL-22+ γδT cells (D)
of untreated and 5 day-IMQ-treated skin of CCR10−/− and
CCR10+/− mice. (E) Scheme of reconstitution
of Rag1−/− mice with CCR10−/−
or CCR10+/− CD4+ αβT cells.
(F,G,H) Average epidermal thickness (F), FC analysis of donor
αβT cells and their IL-17A/IL-22 production (G), and average
percentages and numbers of IL-17A/IL-22+ αβT cells (H)
of the IMQ-treated skin of Rag1−/− mice reconstituted
with CCR10−/− or CCR10+/−
CD4+ αβT cells. (I) Scheme of
reconstitution of CCR10+/−Rag1−/− or
CCR10−/−Rag1−/− mice with
same CCR10+/− CD4+ αβT cells.
(J,K,L,M,N) Average epidermal thickness (J), FC analysis (K)
and percentages and numbers (L) of EGFP(CCR10)+ host ILCs, and FC
analysis (M) and percentages and numbers (N) of IL-17A/IL-22+ donor
αβT cells of the IMQ-treated skin of
CCR10+/−Rag1−/− and
CCR10−/−Rag1−/− mice
reconstituted with CCR10+/− CD4+ αβT
cells. One dot represents one sample (A,F,J). N=5–9 (D) and 5 each
(H,L,N). NS: not significant, *P<0.05, **P<0.01,
***P<0.001, ***P<0.0001.