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Rheumatoid arthritis and the complement system

Okroj, Marcin LU ; Heinegård, Dick LU ; Holmdahl, Rikard LU and Blom, Anna LU orcid (2007) In Annals of Medicine 39(7). p.517-530
Abstract
Complement activation contributes to a pathological process in a number of autoimmune and inflammatory diseases, including rheumatoid arthritis (RA). In this review we summarize current knowledge of complement contribution to RA, based on clinical observations in patients and in vivo animal models, as well as on experiments in vitro aiming at elucidation of underlying molecular mechanisms. There is strong evidence that both the classical and the alternative pathways of complement are pathologically activated during RA as well as in animal models for RA. The classical pathway can be initiated by several triggers present in the inflamed joint such as deposited autoantibodies, dying cells, and exposed cartilage proteins such as fibromodulin.... (More)
Complement activation contributes to a pathological process in a number of autoimmune and inflammatory diseases, including rheumatoid arthritis (RA). In this review we summarize current knowledge of complement contribution to RA, based on clinical observations in patients and in vivo animal models, as well as on experiments in vitro aiming at elucidation of underlying molecular mechanisms. There is strong evidence that both the classical and the alternative pathways of complement are pathologically activated during RA as well as in animal models for RA. The classical pathway can be initiated by several triggers present in the inflamed joint such as deposited autoantibodies, dying cells, and exposed cartilage proteins such as fibromodulin. B cells producing autoantibodies, which in turn form immune complexes, contribute to RA pathogenesis partly via activation of complement. It appears that anaphylatoxin C5a is the main product of complement activation responsible for tissue damage in RA although deposition of membrane attack complex as well as opsonization with fragments of C3b are also important. Success of complement inhibition in the experimental models described so far encourages novel therapeutic approaches to the treatment of human RA. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Annals of Medicine
volume
39
issue
7
pages
517 - 530
publisher
Taylor & Francis
external identifiers
  • pmid:17852027
  • wos:000251046500003
  • scopus:35649005450
  • pmid:17852027
ISSN
1365-2060
DOI
10.1080/07853890701477546
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Connective Tissue Biology (013230151), Protein Chemistry (013017510), Medical Inflammation Research (013212019)
id
f2a65310-a93b-456a-88b6-bd903f6db015 (old id 1137891)
date added to LUP
2016-04-04 08:55:48
date last changed
2022-03-23 03:25:18
@article{f2a65310-a93b-456a-88b6-bd903f6db015,
  abstract     = {{Complement activation contributes to a pathological process in a number of autoimmune and inflammatory diseases, including rheumatoid arthritis (RA). In this review we summarize current knowledge of complement contribution to RA, based on clinical observations in patients and in vivo animal models, as well as on experiments in vitro aiming at elucidation of underlying molecular mechanisms. There is strong evidence that both the classical and the alternative pathways of complement are pathologically activated during RA as well as in animal models for RA. The classical pathway can be initiated by several triggers present in the inflamed joint such as deposited autoantibodies, dying cells, and exposed cartilage proteins such as fibromodulin. B cells producing autoantibodies, which in turn form immune complexes, contribute to RA pathogenesis partly via activation of complement. It appears that anaphylatoxin C5a is the main product of complement activation responsible for tissue damage in RA although deposition of membrane attack complex as well as opsonization with fragments of C3b are also important. Success of complement inhibition in the experimental models described so far encourages novel therapeutic approaches to the treatment of human RA.}},
  author       = {{Okroj, Marcin and Heinegård, Dick and Holmdahl, Rikard and Blom, Anna}},
  issn         = {{1365-2060}},
  language     = {{eng}},
  number       = {{7}},
  pages        = {{517--530}},
  publisher    = {{Taylor & Francis}},
  series       = {{Annals of Medicine}},
  title        = {{Rheumatoid arthritis and the complement system}},
  url          = {{http://dx.doi.org/10.1080/07853890701477546}},
  doi          = {{10.1080/07853890701477546}},
  volume       = {{39}},
  year         = {{2007}},
}