CD38 and Miyoshi myopathy: These findings indicated that, in total, bulk MVs extracted from patients with MM were enriched in a mixture of ectoenzymes (CD39, CD38, CD73, and CD203a) derived from different cell components in the BM, producing adenosine by conversion of ATP (via the canonical pathway) and/or NAD+ (via the noncanonical pathway) in the BMM niche [10].