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Plasmacytoid dendritic cells regulate breach of self-tolerance in autoimmune arthritis

Jongbloed, S.L. and Benson, R.A. and Nickdel, M.B. and Garside, P. and McInnes, L.B. and Brewer, J.M. (2009) Plasmacytoid dendritic cells regulate breach of self-tolerance in autoimmune arthritis. Journal of Immunology, 182 (2). pp. 963-968. ISSN 0022-1767

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Abstract

Achieving remission in rheumatoid arthritis (RA) remains elusive despite current biological therapeutics. Consequently, interest has increased in strategies to re-establish immune tolerance to provide long-term disease suppression. Although dendritic cells (DC) are prime candidates in initiating autoreactive T cell responses, and their presence within the synovial environment suggests a role in generation and maintenance of autoreactive, synovial T cell responses, their functional importance remains unclear. We investigated the contribution made by plasmacytoid DCs (pDCs) in the spontaneous breach of tolerance to arthritis-related self proteins, including rheumatoid factor, citrullinated peptide, and type II collagen observed in a novel arthritis model. Selective pDC depletion in vivo enhanced the severity of articular pathology and enhanced T and B cell autoimmune responses against type II collagen. pDC may offer a net anti-inflammatory function in the context of articular breach of tolerance. Such data will be vital in informing DC modulatory/therapeutic approaches.

Item type: Article
ID code: 19342
Keywords: plasmacytoid dendritic cells, autoimmune arthritis, Immunology, Medicine(all)
Subjects: Science > Microbiology > Immunology
Department: Faculty of Science > Strathclyde Institute of Pharmacy and Biomedical Sciences
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Depositing user: Strathprints Administrator
Date Deposited: 01 Jun 2010 16:25
Last modified: 05 Sep 2014 03:10
URI: http://strathprints.strath.ac.uk/id/eprint/19342

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