CD274 and Miyoshi myopathy: The expression of PD-L1 was not assessed in these studies; however, considering that miR-34a is a known regulator of PD-L1 expression and that PD-L1 expression can impact apoptosis, it would be interesting to investigate if the anti-MM effects of miR-34a can be partly attributed to the modulation of PD-L1 expression.