As shown in Figure 1B, among these eight MM cell lines (XG1, ARP-1, OCI-my5, KMS-11, KMS-28, RPMI-8226, ANBL6-WT, ANBL6-BR), ARP-1 showed the highest HDAC1 expression at mRNA level, while XG1 showed the lowest. Here, HDAC1 is linked to Miyoshi myopathy.