Migration marker expression on CD4+ T cells. The expression of migration markers on the cell surface of CD4+ T cells was investigated by flow cytometry. (A) Dot plots show the expression of CD103, CCR9, integrin β7, CD49d, and CD11a on CD4+ T-cells from two different patients after 1 month of ART. (B) CD103 and CCR9 expression pre-ART and after 1 month of ART compared to healthy donors. (C) CD49d, CD11a, and integrin β7 expression pre-ART and after 1 month of ART compared to healthy donors. Bar graphs show interquartile ranges, median bars, as well as individual data points. Due to the small sample size, no statistical comparison was performed.