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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 Nat+Commun
2015 ; 6
(ä): 8164
Nephropedia Template TP
gab.com Text
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English Wikipedia
Blood coagulation protein fibrinogen promotes autoimmunity and demyelination via
chemokine release and antigen presentation
#MMPMID26353940
Ryu JK
; Petersen MA
; Murray SG
; Baeten KM
; Meyer-Franke A
; Chan JP
; Vagena E
; Bedard C
; Machado MR
; Rios Coronado PE
; Prod'homme T
; Charo IF
; Lassmann H
; Degen JL
; Zamvil SS
; Akassoglou K
Nat Commun
2015[Sep]; 6
(ä): 8164
PMID26353940
show ga
Autoimmunity and macrophage recruitment into the central nervous system (CNS) are
critical determinants of neuroinflammatory diseases. However, the mechanisms that
drive immunological responses targeted to the CNS remain largely unknown. Here we
show that fibrinogen, a central blood coagulation protein deposited in the CNS
after blood-brain barrier disruption, induces encephalitogenic adaptive immune
responses and peripheral macrophage recruitment into the CNS leading to
demyelination. Fibrinogen stimulates a unique transcriptional signature in
CD11b(+) antigen-presenting cells inducing the recruitment and local CNS
activation of myelin antigen-specific Th1 cells. Fibrinogen depletion reduces Th1
cells in the multiple sclerosis model, experimental autoimmune encephalomyelitis.
Major histocompatibility complex (MHC) II-dependent antigen presentation, CXCL10-
and CCL2-mediated recruitment of T cells and macrophages, respectively, are
required for fibrinogen-induced encephalomyelitis. Inhibition of the fibrinogen
receptor CD11b/CD18 protects from all immune and neuropathologic effects. Our
results show that the final product of the coagulation cascade is a key
determinant of CNS autoimmunity.