CD276 and Miyoshi myopathy: When increasing the effector cells to 5:1, these T cells effectively killed low (NCI-H929; Fig. 8B) and medium (L-363; Fig. 8C) B7-H3-expressing MM cells, with percentages of 37.7 ± 5.4% (p = 0.0436), 54.5 ± 6.7% (p = 0.0443), respectively.