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2017 ; 18
(1
): 104-113
Nephropedia Template TP
gab.com Text
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English Wikipedia
Regulation of autoantibody activity by the IL-23-T(H)17 axis determines the onset
of autoimmune disease
#MMPMID27820809
Pfeifle R
; Rothe T
; Ipseiz N
; Scherer HU
; Culemann S
; Harre U
; Ackermann JA
; Seefried M
; Kleyer A
; Uderhardt S
; Haugg B
; Hueber AJ
; Daum P
; Heidkamp GF
; Ge C
; Böhm S
; Lux A
; Schuh W
; Magorivska I
; Nandakumar KS
; Lönnblom E
; Becker C
; Dudziak D
; Wuhrer M
; Rombouts Y
; Koeleman CA
; Toes R
; Winkler TH
; Holmdahl R
; Herrmann M
; Blüml S
; Nimmerjahn F
; Schett G
; Krönke G
Nat Immunol
2017[Jan]; 18
(1
): 104-113
PMID27820809
show ga
The checkpoints and mechanisms that contribute to autoantibody-driven disease are
as yet incompletely understood. Here we identified the axis of interleukin 23
(IL-23) and the T(H)17 subset of helper T cells as a decisive factor that
controlled the intrinsic inflammatory activity of autoantibodies and triggered
the clinical onset of autoimmune arthritis. By instructing B cells in an IL-22-
and IL-21-dependent manner, T(H)17 cells regulated the expression of
?-galactoside ?2,6-sialyltransferase 1 in newly differentiating
antibody-producing cells and determined the glycosylation profile and activity of
immunoglobulin G (IgG) produced by the plasma cells that subsequently emerged.
Asymptomatic humans with rheumatoid arthritis (RA)-specific autoantibodies showed
identical changes in the activity and glycosylation of autoreactive IgG
antibodies before shifting to the inflammatory phase of RA; thus, our results
identify an IL-23-T(H)17 cell-dependent pathway that controls autoantibody
activity and unmasks a preexisting breach in immunotolerance.