To confirm that MICA expressed on the surface of MM cell lines derived from the effective transfer of MICA as protein from mEVs to the MM cell surface and was not due to a neo-induction on receiving cells or possible transfer of mRNA contained in vesicle cargo, we analyzed MICA mRNA in MM cells upon treatment with both MICA*008 and MICA*019 mEVs. Here, MICA is linked to Miyoshi myopathy.