CD8A and Miyoshi myopathy: We then performed correlation analyses which showed differences between the ME-MM and ME-SA groups in the association between the frequency of CD28+ MAIT cells and of T cell CD57-CD28- subsets: there was a negative correlation in the ME-MM group for both CD4+ (r = −0.751, p < 0.0001) and CD8+ (r = −0.545, p < 0.0001) CD57-CD28- T cells and CD28+ MAITs (Fig. 2d).