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.
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experimental autoimmune encephalitis (EAE)4,636 cells T2.Lesion_<45D1,768 cells Re.Lesion_>1000D710 cells T2.Lesion_>1000D315 cells this.manuscript4,636 cells VE3_FLT1.KIRREL32,055 cells VLMC1_CEMIP.PDGFRA555 cells Pericyte2_PDGFRB.FLT1475 cells VLMC2_CEMIP.LRP1B266 cells VE.eae1_FLT1.PDLIM1.ADAMTS1242 cells Pericyte1_PDGFRB.NTM240 cells VE.eae2_FLT1.S100A4.TIMP1143 cells VSMC_KCNAB1.ACTA248 cells VLMC4_CEMIP.SLC47A132 cells 10x Chromium 3’, single-nucleus6,758 cells Sample ID
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Slide 200023355,025 cells