Major genetic study reveals cellular mechanisms underlying multiple sclerosis across diverse populations

In a landmark study published in Nature, an international research team has mapped the genetic underpinnings of multiple sclerosis with unprecedented breadth and precision, drawing on data from people of diverse ancestral backgrounds to reveal not merely which genetic variants raise disease risk, but which specific immune cells they damage and which regions of the nervous system bear the consequences. This multiancestry, multiomics approach marks a quiet but profound shift in how science understands a disease that has long resisted full explanation — moving from cataloguing risk to tracing mec