Researchers at the National Institutes of Health (NIH) have developed a four-dimensional brain map using a marmoset model to study lesion formation in multiple sclerosis (MS). This model replicates human MS more accurately than traditional mouse models due to the similar brain structure, offering insights into early disease stages. The research, led by Drs. Jing-Ping Lin and Daniel S. Reich at NIH’s NINDS, utilizes MRI imaging and brain-tissue analysis to track lesion development, revealing a new MRI signature that detects at-risk brain regions weeks before visible lesions appear. A key finding was the role of SERPINE1-expressing astrocytes, which accumulate at lesion sites, potentially influencing inflammation and repair processes. The study suggests these astrocytes might coordinate signals for either tissue repair or further damage, highlighting a dual role that warrants further exploration. This research not only advances MS understanding but may also provide insights into other brain injuries, offering a foundation for developing new treatments.

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[Source: NIH, February 27, 2025]