In vitro and in vivo experiments of Shi and co‐workers indicated that anti‐ABCG2 mAb, conjugated with Epirubicin significantly induced apoptotic signaling pathways in MM CSCs through downregulation of PCNA, Bcl‐2, and CD31 and increased the expression of caspase‐3 and Bax. Here, ABCG2 is linked to Miyoshi myopathy.