4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

Cite

Lin, J.P., Brake, A., Donadieu, M., Lee, A., Smith, G., Hu, K., Nair, G., Kawaguchi, R., Sati, P., Geschwind, D.H. and Jacobson, S., 2025. 4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions. Science, 387(6737), p.eadp6325. https://doi.org/10.1126/science.adp6325

Abstract

Inferring cellular and molecular dynamics of multiple sclerosis (MS) lesions from postmortem tissue collected decades after onset is challenging. Using magnetic resonance image (MRI)–guided spatiotemporal RNA profiling in marmoset experimental autoimmune encephalitis (EAE), we mapped lesion dynamics and modeled molecular perturbations relevant to MS. Five distinct lesion microenvironments emerged, involving neuroglial responses, tissue destruction and repair, and brain border regulation. Before demyelination, MRI identified a high ratio of proton density–weighted signal to T1 relaxation time, capturing early hypercellularity, and elevated astrocytic and ependymal senescence signals marked perivascular and periventricular areas that later became demyelination hotspots. As lesions expanded, concentric glial barriers formed, initially dominated by proliferating and diversifying microglia and oligodendrocyte precursors, later replaced by monocytes and lymphocytes. We highlight SERPINE1+ astrocytes as a signaling hub underlying lesion onset in both marmoset EAE and MS.

Datasets

1. All cells

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

2. Astrocytes

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

3. Mircroglia

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

4. Neurons

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

5. Oligodendrocytes

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

6. OPCs

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

7. Peripheral immune cells

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

8. Vascular cells

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions

9. Visium

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4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions