CD27 and type 1 diabetes mellitus: Although we observed no change in proportion or number CD62L+/- MAIT cell subsets (data not shown), we did observe that T1Ds possessed a reduced proportion of CD27+ MAIT cells (data not shown) with a corresponding increase in proportion of CD27- MAIT cells compared to controls (Control vs. T1D, p = 0.0224; Control vs. LT1D, p = 0.0418; Fig. 4A & B).