Baclofen, a GABAB receptor-specific agonist commonly used as a muscle relaxant in MS patients, heightened remyelination by prompting GABA to amplify Myelin-associated glycoprotein (MAG) and MBP expression levels in vitro in optic nerve explants and cerebral slices (Serrano-Regal et al., 2022). Here, MAG is linked to myeloid sarcoma.