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Appearance of Cxcl10-expressing cell clusters is common for traumatic brain injury and neurodegenerative disorders
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Neuroscience.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Neuroscience.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Lobell / Autoimmuna sjukdomar, Autoimmunity)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Geriatrics. (Molekylär geriatrik/ Rudbecklaboratoriet)
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2010 (English)In: European Journal of Neuroscience, ISSN 0953-816X, E-ISSN 1460-9568, Vol. 31, no 5, 852-863 p.Article in journal (Refereed) Published
Abstract [en]

Traumatic brain injury (TBI) in the mouse results in the rapid appearance of scattered clusters of cells expressing the chemokine Cxcl10 in cortical and subcortical areas. To extend the observation of this unique pattern, we used neuropathological mouse models using quantitative reverse transcriptase-polymerase chain reaction, gene array analysis, in-situ hybridization and flow cytometry. As for TBI, cell clusters of 150–200 μm expressing Cxcl10 characterize the cerebral cortex of mice carrying a transgene encoding the Swedish mutation of amyloid precursor protein, a model of amyloid Alzheimer pathology. The same pattern was found in experimental autoimmune encephalomyelitis in mice modelling multiple sclerosis. In contrast, mice carrying a SOD1G93A mutant mimicking amyotrophic lateral sclerosis pathology lacked such cell clusters in the cerebral cortex, whereas clusters appeared in the brainstem and spinal cord. Mice homozygous for a null mutation of the Cxcl10 gene did not show detectable levels of Cxcl10 transcript after TBI, confirming the quantitative reverse transcriptase-polymerase chain reaction and in-situ hybridization signals. Moreover, unbiased microarray expression analysis showed that Cxcl10 was among 112 transcripts in the neocortex upregulated at least threefold in both TBI and ageing TgSwe mice, many of them involved in inflammation. The identity of the Cxcl10+ cells remains unclear but flow cytometry showed increased numbers of activated microglia/macrophages as well as myeloid dendritic cells in the TBI and experimental autoimmune encephalomyelitis models. It is concluded that the Cxcl10+ cells appear in the inflamed central nervous system and may represent a novel population of cells that it may be possible to target pharmacologically in a broad range of neurodegenerative conditions.

Place, publisher, year, edition, pages
2010. Vol. 31, no 5, 852-863 p.
Keyword [en]
Alzheimer's disease, chemokines, dendritic cells, experimental autoimmune encephalomyelitis, inflammation, mouse
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-123055DOI: 10.1111/j.1460-9568.2010.07105.xISI: 000275096500008PubMedID: 20374285OAI: oai:DiVA.org:uu-123055DiVA: diva2:311731
Available from: 2010-04-22 Created: 2010-04-22 Last updated: 2017-12-12Bibliographically approved

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Lobell, AnnaKullander, Klas

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