Consistent with our results, Vulpis et al. recently reported significantly reduced expression of DNAM-1 on CD56bright (and a small subset of CD56dimCD16low) NK cells in RR MM patients [30], and El-Sherbiny et al. found reduced expression on CD56dim NK cells from patients with active MM, but not from patients that have had a complete response to therapy [23]. The gene discussed is CD226; the disease is Miyoshi myopathy.