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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Arthritis+Res+Ther
2016 ; 18
(1
): 140
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Collagen epitope expression on B cells is sufficient to confer tolerance to
collagen-induced arthritis
#MMPMID27301320
Andersson SE
; Eneljung T
; Tengvall S
; Jirholt P
; Stern A
; Henningsson L
; Liang B
; Thorarinsdottir K
; Kihlberg J
; Holmdahl R
; Mårtensson IL
; Gustafsson K
; Gjertsson I
Arthritis Res Ther
2016[Jun]; 18
(1
): 140
PMID27301320
show ga
BACKGROUND: The mechanisms underlying tolerance induction and maintenance in
autoimmune arthritis remain elusive. In a mouse model of rheumatoid arthritis,
collagen type II (CII)-induced arthritis, we explore the contribution of B cells
to antigen-specific tolerance. METHODS: To generate expression of the CII-peptide
specifically on B-cell major histocompatibility complex type II, lentiviral-based
gene therapy including a B-cell-specific Igk promoter was used. RESULTS:
Presentation of the CII-peptide on B cells significantly reduced the frequency
and severity of arthritis as well as the serum levels of CII -specific IgG
antibodies. Further, both frequency and suppressive function of regulatory T
cells were increased in tolerized mice. Adoptive transfer of regulatory T cells
from tolerized mice to naïve mice ameliorated the development of CII-induced
arthritis. CONCLUSION: Our data suggest that endogenous presentation of the
CII-peptide on B cells is one of the key contributors to arthritis tolerance
induction and maintenance.