CD63 and Miyoshi myopathy: Finally, we investigated the effects of anti-CD63 mAb-conjugated siRNA with branched Arg linker on targeted mRNA transcripts in MM cells by assessing the effect of anti-CD63 mAb-conjugated luc+ siRNA complexes delivery (mAb-to-siRNA ratio, 1:1; 1500 nM) on luminescence activity.