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2017 ; 37
(4
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Ginsenoside Rg3 attenuates sepsis-induced injury and mitochondrial dysfunction in
liver via AMPK-mediated autophagy flux
#MMPMID28779013
Xing W
; Yang L
; Peng Y
; Wang Q
; Gao M
; Yang M
; Xiao X
Biosci Rep
2017[Aug]; 37
(4
): ä PMID28779013
show ga
Sepsis-led mitochondrial dysfunction has become a critical pathophysiological
procedure in sepsis. Since ginsenosides have been applied in the treatment of
mitochondrial dysfunction, ginsenoside Rg3 was employed to study its effects on
the mitochondrial dysfunction induced by sepsis. The apoptosis rate, oxygen
consumption rate (OCR), reactive oxygen species (ROS), antioxidant glutathione
(GSH) pools, and mitochondrial transmembrane potential (MTP) were determined in
LPS-induced sepsis hepatocytes treated with different concentrations of Rg3.
Then, the protein expression levels of mitochondrial biogenesis related
transcription factors, autophagy-related proteins, and AMP-activated protein
kinase (AMPK) signal pathway related proteins were determined by Western blotting
in both in vitro and in vivo sepsis models. Rg3 shows functions of promotion of
OCR, attenuation of ROS, and maintenance of GSH pools, and its conjugating
activity in the in vitro sepsis models. Rg3-treated cells were observed to have a
higher MTP value compared with the LPS only induced cells. Moreover, Rg3
treatment can inhibit mitochondrial dysfunction via increasing the protein
expression levels of mitochondrial biogenesis related transcription factors. Rg3
treatment has the function of inhibitor of apoptosis of human primary
hepatocytes, and Rg3 can up-regulate the autophagy-related proteins and activate
AMPK signal pathway in sepsis models. Meanwhile, the mitochondrial protective
function exerted by Rg3 decreased after the autophagy inhibitors or AMPK
inhibitor treatment in LPS-induced human primary hepatocytes. Rg3 can improve
mitochondrial dysfunction by regulating autophagy in mitochondria via activating
the AMPK signal pathway, thus protecting cell and organ injuries caused by
sepsis.
|AMP-Activated Protein Kinases/*metabolism
[MESH]
|Animals
[MESH]
|Autophagy/*drug effects
[MESH]
|Chemical and Drug Induced Liver Injury/*drug therapy/metabolism/pathology
[MESH]