NDRG1 and myeloid sarcoma: To unravel a molecular signature of oligodendrocytes in periplaque areas of MS spinal cords, we used the oligodendrocyte-related hub gene NDRG1 as a “bait” and retrieved the top-200 mRNA species that more closely co-expressed with NDRG1. The full list of NDRG1 co-expressed genes is provided in Supplementary Data S4.