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2016 ; 7
(24
): 35643-35654
Nephropedia Template TP
gab.com Text
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English Wikipedia
Inhibition of neddylation regulates dendritic cell functions via Deptor
accumulation driven mTOR inactivation
#MMPMID27224922
Cheng M
; Hu S
; Wang Z
; Pei Y
; Fan R
; Liu X
; Wang L
; Zhou J
; Zheng S
; Zhang T
; Lin Y
; Zhang M
; Tao R
; Zhong J
Oncotarget
2016[Jun]; 7
(24
): 35643-35654
PMID27224922
show ga
Neddylation, a newly identified post-translational modification, is significant
for the activity and stability of target proteins. The exact role of neddylation
in the pathogenesis of inflammatory bowel disease, specifically those mediated by
dendritic cells (DCs), was still rarely reported. Here, we showed that inhibition
of neddylation protected mice from mucosal inflammation. Targeting neddylation
also inhibited DC maturation characterized by reduced cytokine production,
down-regulated costimulatory molecules and suppressed capacity in allogeneic T
cell stimulation. Additionally, inactivation of neddylation promotes caspase
dependent apoptosis of DCs. These phenomena were attributed to the inactivation
of mTOR, which was caused by Cullin-1 deneddylation induced Deptor accumulation.
Together, our findings revealed that neddylation inhibition suppressed DC
functions through mTOR signaling pathway and provided a potential therapeutic
opportunity in inflammatory bowel diseases.
|Animals
[MESH]
|Apoptosis/physiology
[MESH]
|Caspase 3/metabolism
[MESH]
|Caspase 7/metabolism
[MESH]
|Cell Differentiation
[MESH]
|Cells, Cultured
[MESH]
|Cullin Proteins/*metabolism
[MESH]
|Cyclopentanes/pharmacology/therapeutic use
[MESH]
|Cytokines/metabolism
[MESH]
|Dendritic Cells/*physiology
[MESH]
|Disease Models, Animal
[MESH]
|Down-Regulation
[MESH]
|Enzyme Inhibitors/pharmacology/therapeutic use
[MESH]