ADGRG1 and myeloid sarcoma: When comparing gene expression in pure microglia from normal-appearing, non-lesional tissue of deceased multiple sclerosis (MS) autopsy cases and tissue of non-pathological brains (Figure 2 and Supplementary Table 2), we found downregulation of ADGRG1 in both, white and grey matter, while expression of other GPCR genes was not changed.