Genetics

This blog post examines a data-driven neuropathological study of multiple sclerosis that identified four biologically distinct subgroups using post-mortem brain tissue from MS donors. The study integrates white matter lesion activity, remyelination status, microglial and macrophage morphology, reactive sites, microglial nodules, perivascular leukocyte cuffing, cortical lesion patterns plasma-cell distribution, and genetic risk data. By linking immune-cell activity and lesion architecture with clinical progression, the findings show that MS heterogeneity cannot be fully explained by traditional clinical phenotypes alone and highlight the importance of neuropathology-based stratification for understanding disease mechanisms and advancing personalized therapeutic approaches.