KLRB1 and inflammatory bowel disease: Expression of CD103 was positively and significantly correlated with CD45RO and CCR6 on mucosal CD4 T cells and with CD161, CCR6 and CD39 on CD8 T cells (Supplementary Figure 6), markers associated with Th17 lineage, hence underlining the pro-inflammatory potential of T cells expressing CD103 in IBD.