MGLL and Miyoshi myopathy: Using a combination of in vitro studies in cultures of MM and bone cells and the murine 5TGM1-GFP model of MM, we observed that 5TGM1-GFP MM cells express MAGL but the exposure of these cells to the verified MAGL inhibitor JZL184 had no effect on their ability to grow in the bone marrow or spleen of immunocompetent mice.