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2016 ; 7
(50
): 82864-82875
Nephropedia Template TP
gab.com Text
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English Wikipedia
Plumbagin protects liver against fulminant hepatic failure and chronic liver
fibrosis via inhibiting inflammation and collagen production
#MMPMID27756878
Wang H
; Zhang H
; Zhang Y
; Wang D
; Cheng X
; Yang F
; Zhang Q
; Xue Z
; Li Y
; Zhang L
; Yang L
; Miao G
; Li D
; Guan Z
; Da Y
; Yao Z
; Gao F
; Qiao L
; Kong L
; Zhang R
Oncotarget
2016[Dec]; 7
(50
): 82864-82875
PMID27756878
show ga
Plumbagin is a quinonoid constituent extracted from Plumbago genus, and it
exhibits diverse pharmacological effects. This study thoroughly investigated the
effects of plumbagin on thioacetamide-induced acute and chronic liver injury.
Results shown that plumbagin increased survival rate, reduced liver congestion
and inflammation, and decreased macrophages and neutrophils in the fulminant
hepatic failure model, and remarkably diminished liver fibrosis and inflammation
in the chronic liver injury model. Furthermore, plumbagin significantly suppress
the HSCs/myofibroblasts activation by reduced expression of markers ?-SMA and
COL-1/3, and reduced macrophage in liver. In the in vitro study, plumbagin
induced apoptosis and suppressed the proliferation of LX-2 cells (human HSCs).
Plumbagin treatment increased AMPK phosphorylation and attenuated NF-?B, STAT3,
and Akt/mTOR signals in LX-2 cells, while SMAD2 phosphorylation was not changed.
Noticeably, plumbagin promoted AMPK binding to p300 which is a cofactor of SMAD
complex, this may further competitively decreases the p300/SMAD complex initiated
transcription of COL-1/3 and ?-SMA. Additionally, plumbagin hampered inflammation
related NF-?B signal in RAW 264.7 cells. In conclusion, these findings indicate
that plumbagin may be a powerful drug candidate to protect the liver from acute
and chronic damage by inhibiting inflammation and collagen production.
|AMP-Activated Protein Kinases/metabolism
[MESH]
|Animals
[MESH]
|Anti-Inflammatory Agents/*pharmacology
[MESH]
|Apoptosis/drug effects
[MESH]
|Chemical and Drug Induced Liver Injury/metabolism/pathology/*prevention & control
[MESH]