Complement activation and expression during chronic relapsing experimental autoimmune encephalomyelitis in the Biozzi ABH mouse

Ramaglia, V., Jackson, S. J., Hughes, Timothy ORCID: https://orcid.org/0000-0003-2348-3490, Neal, James, Baker, D. and Morgan, Bryan ORCID: https://orcid.org/0000-0003-4075-7676 2015. Complement activation and expression during chronic relapsing experimental autoimmune encephalomyelitis in the Biozzi ABH mouse. Clinical & Experimental Immunology 180 (3) , pp. 432-441. 10.1111/cei.12595

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Abstract

Chronic relapsing experimental autoimmune encephalomyelitis (crEAE) in mice recapitulates many of the clinical and histopathological features of human multiple sclerosis (MS), making it a preferred model for the disease. In both, adaptive immunity and anti-myelin T cells responses are thought to be important, while in MS a role for innate immunity and complement has emerged. Here we sought to test whether complement is activated in crEAE and important for disease. Disease was induced in Biozzi ABH mice that were terminated at different stages of the disease to assess complement activation and local complement expression in the central nervous system. Complement activation products were abundant in all spinal cord areas examined in acute disease during relapse and in the progressive phase, but were absent in early disease remission, despite significant residual clinical disease. Local expression of C1q and C3 was increased at all stages of disease, while C9 expression was increased only in acute disease; expression of the complement regulators CD55, complement receptor 1-related gene/protein y (Crry) and CD59a was reduced at all stages of the disease compared to naive controls. These data show that complement is activated in the central nervous system in the model and suggest that it is a suitable candidate for exploring whether anti-complement agents might be of benefit in MS.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General)
Uncontrolled Keywords:	chronic relapsing;complement;experimental autoimmune encephalomyelitis (EAE);multiple sclerosis
Publisher:	Wiley
ISSN:	0009-9104
Date of Acceptance:	20 January 2015
Last Modified:	31 Oct 2022 10:42
URI:	https://orca.cardiff.ac.uk/id/eprint/85792

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