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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 Clin+Exp+Immunol
2016 ; 184
(2
): 183-96
Nephropedia Template TP
gab.com Text
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English Wikipedia
Downstream activation of NF-?B in the EDA-A1/EDAR signalling in Sjögren s
syndrome and its regulation by the ubiquitin-editing enzyme A20
#MMPMID26724675
Sisto M
; Barca A
; Lofrumento DD
; Lisi S
Clin Exp Immunol
2016[May]; 184
(2
): 183-96
PMID26724675
show ga
Sjögren's syndrome (SS) is an autoimmune disease and the second most common
chronic systemic rheumatic disorder. Prevalence of primary SS in the general
population has been estimated to be approximately 1-3%, whereas secondary SS has
been observed in 10-20% of patients with rheumatoid arthritis, systemic lupus
erythematosus (SLE) and scleroderma. Despite this, its exact aetiology and
pathogenesis are largely unexplored. Nuclear factor-kappa B (NF-?B) signalling
mechanisms provide central controls in SS, but how these pathways intersect the
pathological features of this disease is unclear. The ubiquitin-editing enzyme
A20 (tumour necrosis factor-?-induced protein 3, TNFAIP3) serves as a critical
inhibitor on NF-?B signalling. In humans, polymorphisms in the A20 gene or a
deregulated expression of A20 are often associated with several inflammatory
disorders, including SS. Because A20 controls the ectodysplasin-A1
(EDA-A1)/ectodysplasin receptor (EDAR) signalling negatively, and the deletion of
A20 results in excessive EDA1-induced NF-?B signalling, this work investigates
the expression levels of EDA-A1 and EDAR in SS human salivary glands epithelial
cells (SGEC) and evaluates the hypothesis that SS SGEC-specific deregulation of
A20 results in excessive EDA1-induced NF-?B signalling in SS. Our approach, which
combines the use of siRNA-mediated gene silencing and quantitative pathway
analysis, was used to elucidate the role of the A20 target gene in intracellular
EDA-A1/EDAR/NF-?B pathway in SS SGEC, holding significant promise for compound
selection in drug discovery.
|DNA-Binding Proteins/genetics/*metabolism
[MESH]
|Ectodysplasins/*metabolism
[MESH]
|Edar Receptor/*metabolism
[MESH]
|Epithelial Cells/metabolism
[MESH]
|Humans
[MESH]
|I-kappa B Proteins/genetics
[MESH]
|Intracellular Signaling Peptides and Proteins/genetics/*metabolism
[MESH]