IL10 and myasthenia gravis: Jiang et al. (2012) found that the let-7 family of miRNAs was downregulated in the PBMCs from MG patients. IL-10 is a target of let-7c, and its expression levels are inversely correlated with that of let-7c (Jiang et al., 2012). Thus, dysregulated let-7c expression may contribute to the initiation and progression of MG through its regulation of IL-10 (Jiang et al., 2012).