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Membrane attack complex inhibitor CD59a protects against focal cerebral ischemia in mice

Harhausen, Denise, Khojasteh, Uldus, Stahel, Philip F, Morgan, Bryan Paul, Nietfeld, Wilfried, Dirnagl, Ulrich and Trendelenburg, George 2010. Membrane attack complex inhibitor CD59a protects against focal cerebral ischemia in mice. Journal of Neuroinflammation 7 , pp. 15-26. 10.1186/1742-2094-7-15

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Abstract

Background The complement system is a crucial mediator of inflammation and cell lysis after cerebral ischemia. However, there is little information about the exact contribution of the membrane attack complex (MAC) and its inhibitor-protein CD59. Methods Transient focal cerebral ischemia was induced by middle cerebral artery occlusion (MCAO) in young male and female CD59a knockout and wild-type mice. Two models of MCAO were applied: 60 min MCAO and 48 h reperfusion, as well as 30 min MCAO and 72 h reperfusion. CD59a knockout animals were compared to wild-type animals in terms of infarct size, edema, neurological deficit, and cell death. Results and Discussion CD59a-deficiency in male mice caused significantly increased infarct volumes and brain swelling when compared to wild-type mice at 72 h after 30 min-occlusion time, whereas no significant difference was observed after 1 h-MCAO. Moreover, CD59a-deficient mice had impaired neurological function when compared to wild-type mice after 30 min MCAO. Conclusion We conclude that CD59a protects against ischemic brain damage, but depending on the gender and the stroke model used.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher: BioMed Central
ISSN: 1742-2094
Last Modified: 04 Jun 2017 03:54
URI: http://orca-mwe.cf.ac.uk/id/eprint/28786

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