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Germinal Center B C...
Germinal Center B Cells Are Essential for Collagen-Induced Arthritis
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- Dahdah, Albert (författare)
- Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
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- Habir, Katrin (författare)
- Karolinska Institutet
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- Nandakumar, Kutty Selva, 1965- (författare)
- Karolinska Institutet
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- Saxena, Amit (författare)
- Karolinska Institutet
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- Xu, Bingze (författare)
- Karolinska Institutet
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- Holmdahl, Rikard (författare)
- Karolinska Institutet
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- Malin, Stephen (författare)
- Karolinska Institutet
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(creator_code:org_t)
- 2018-01-22
- 2018
- Engelska.
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Ingår i: Arthritis & Rheumatology. - Hoboken : John Wiley & Sons. - 2326-5191 .- 2326-5205. ; 70:2, s. 193-203
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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http://kipublication...
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Abstract
Ämnesord
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- OBJECTIVE: Rheumatoid arthritis (RA) is considered to be a prototypical autoimmune disorder. Several mechanisms have been proposed for the known pathologic function of B cells in RA, including antigen presentation, cytokine secretion, and humoral immunity. The aim of this study was to address the function of B lymphocytes in experimental arthritis.METHODS: We mapped the adaptive immune response following collagen-induced arthritis (CIA). We subsequently monitored these responses and disease outcomes in genetically modified mouse strains that lack mature B cell or germinal center (GC) functionality in a B cell-intrinsic manner.RESULTS: Following primary immunization, the draining lymph nodes broadly reacted against type II collagen (CII) with the formation of GCs and T cell activation. Mice that lacked mature B cell function were fully protected against CIA and had a severely attenuated ability to mount isotype-switched humoral immune responses against CII. Almost identical results were observed in mice that were selectively deficient in GC responses. Importantly, GC-deficient mice were fully susceptible to collagen antibody-induced arthritis.CONCLUSION: We identified GC formation and anticollagen antibody production as the key pathogenic functions of B cells in CIA. The role of B cells in RA is likely to be more complex. However, targeting the GC reaction could allow for therapeutic interventions that are more refined than general B cell depletion.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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