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flag A biomarker ratio in spinal fluid may predict progressive MS and response to new therapies.

flag A University of Toronto-led study has found that a high ratio of CXCL13 to BAFF proteins in cerebrospinal fluid may signal compartmentalized inflammation in the leptomeninges, a key factor in progressive multiple sclerosis. flag The biomarker, identified in both mouse models and human tissue, correlates with greater inflammation and could help identify patients most likely to respond to BTK inhibitor therapies. flag Researchers suggest using the ratio to improve clinical trial design and enable earlier, targeted treatment. flag The team, led by Jen Gommerman and Valeria Ramaglia, is now exploring its ability to predict disease progression and collaborating with pharmaceutical companies. flag The work was funded by Canadian and U.S. health agencies.

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