Furthermore, hu388-UCART, hu404-UCART and h32-UCART cells were co-cultured with primary MM cells, and the levels of TNF-α, IFN-γ and IL-2 in h32-UCART cells were significantly high than hu388-UCART and hu404-UCART cells (P < 0.01) (Fig. 4H-J). Here, IL2 is linked to Miyoshi myopathy.