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Alterations of the blood-brain barrier in cerebral white matter lesions in the ageing brain

Simpson, Julie E.; Wharton, Stephen B.; Cooper, James; Gelsthorpe, Catherine; Baxter, Lynne; Forster, Gillian; Shaw, Pamela J.; Savva, George; Matthews, Fiona E.; Brayne, Carol; Ince, Paul G.

Authors

Julie E. Simpson

Stephen B. Wharton

James Cooper

Catherine Gelsthorpe

Lynne Baxter

Gillian Forster

Pamela J. Shaw

George Savva

Carol Brayne

Paul G. Ince



Abstract

White matter lesions (WML) are associated with dementia and are common in brain ageing. In order to determine whether alteration of the blood-brain barrier (BBB) may contribute to the pathogenesis of WML we assessed albumin leakage and expression of the tight junction (TJ) proteins claudin-5 (Cln-5), zona occludin-1 (ZO-1) and occludin in cases derived from the Medical Research Council Cognitive Function and Ageing Study. Albumin extravasation was widespread in the ageing brain and enhanced in WML, suggesting dysfunction of the BBB may contribute to the pathogenesis of WML. This was not accompanied by significant changes in the endothelial expression of TJ proteins. However, ZO-1 and occludin were expressed by glial cells throughout the parenchyma of both control white matter and WML, suggesting these TJ proteins may have other functions in the brain. © 2010 Elsevier Ireland Ltd.

Citation

Simpson, J. E., Wharton, S. B., Cooper, J., Gelsthorpe, C., Baxter, L., Forster, G., Shaw, P. J., Savva, G., Matthews, F. E., Brayne, C., & Ince, P. G. (2010). Alterations of the blood-brain barrier in cerebral white matter lesions in the ageing brain. Neuroscience letters, 486(3), 246-251. https://doi.org/10.1016/j.neulet.2010.09.063

Journal Article Type Article
Publication Date Dec 17, 2010
Deposit Date Dec 8, 2023
Journal Neuroscience Letters
Print ISSN 0304-3940
Publisher Elsevier
Volume 486
Issue 3
Pages 246-251
DOI https://doi.org/10.1016/j.neulet.2010.09.063
Public URL https://hull-repository.worktribe.com/output/4454972