Home > Publications Database > Microglia and CD8+ T cell activation precede neuronal loss in a murine model of spastic paraplegia 15. > print

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024 7 _ |a 10.1084/jem.20232357
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024 7 _ |a 0022-1007
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024 7 _ |a 1540-9358
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024 7 _ |a 1540-9538
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037 _ _ |a DZNE-2025-00556
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Frolov, Aleksej
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245 _ _ |a Microglia and CD8+ T cell activation precede neuronal loss in a murine model of spastic paraplegia 15.
260 _ _ |a New York, NY
|c 2025
|b Rockefeller Univ. Press
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520 _ _ |a In central nervous system (CNS) diseases characterized by late-onset neurodegeneration, the interplay between innate and adaptive immune responses remains poorly understood. This knowledge gap is exacerbated by the prolonged protracted disease course as it complicates the delineation of brain-resident and infiltrating cells. Here, we conducted comprehensive profiling of innate and adaptive immune cells in a murine model of spastic paraplegia 15 (SPG15), a complicated form of hereditary spastic paraplegia. Using fate-mapping of bone marrow-derived cells, we identified microgliosis accompanied by infiltration and local expansion of T cells in the CNS of Spg15-/- mice. Single-cell analysis revealed an expansion of disease-associated microglia (DAM) and effector CD8+ T cells prior to neuronal loss. Analysis of potential cell-cell communication pathways suggested bidirectional interactions between DAM and effector CD8+ T cells, potentially contributing to disease progression in Spg15-/- mice. In summary, we identified a shift in microglial phenotypes associated with the recruitment and expansion of T cells as a new characteristic of Spg15-driven neuropathology.
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650 _ 2 |a Animals
|2 MeSH
650 _ 2 |a CD8-Positive T-Lymphocytes: immunology
|2 MeSH
650 _ 2 |a CD8-Positive T-Lymphocytes: pathology
|2 MeSH
650 _ 2 |a Microglia: immunology
|2 MeSH
650 _ 2 |a Microglia: pathology
|2 MeSH
650 _ 2 |a Disease Models, Animal
|2 MeSH
650 _ 2 |a Mice
|2 MeSH
650 _ 2 |a Neurons: pathology
|2 MeSH
650 _ 2 |a Neurons: immunology
|2 MeSH
650 _ 2 |a Mice, Knockout
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650 _ 2 |a Lymphocyte Activation: immunology
|2 MeSH
650 _ 2 |a Spastic Paraplegia, Hereditary: immunology
|2 MeSH
650 _ 2 |a Spastic Paraplegia, Hereditary: pathology
|2 MeSH
650 _ 2 |a Mice, Inbred C57BL
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700 1 _ |a Huang, Hao
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700 1 _ |a Schütz, Dagmar
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700 1 _ |a Köhne, Maren Christin
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700 1 _ |a Blank-Stein, Nelli
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700 1 _ |a Osei-Sarpong, Collins
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700 1 _ |a Büttner, Maren
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700 1 _ |a Elmzzahi, Tarek
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700 1 _ |a Khundadze, Mukhran
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700 1 _ |a Zahid, Marina
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700 1 _ |a Reuter, Michael
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700 1 _ |a Kallies, Axel
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700 1 _ |a Morrison, Helen
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700 1 _ |a Hübner, Christian A
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700 1 _ |a Händler, Kristian
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700 1 _ |a Stumm, Ralf
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700 1 _ |a Mass, Elvira
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700 1 _ |a Beyer, Marc D
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773 _ _ |a 10.1084/jem.20232357
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