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2015 ; 8
(5
): 5175-81
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gab.com Text
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Glycyrrhizic acid inhibits leukemia cell growth and migration via blocking
AKT/mTOR/STAT3 signaling
#MMPMID26191214
He SQ
; Gao M
; Fu YF
; Zhang YN
Int J Clin Exp Pathol
2015[]; 8
(5
): 5175-81
PMID26191214
show ga
Glycyrrhizic acid (GA) is the bioactive compound of licorice and has been used as
an herbal medicine because of its anti-viral, anti-cancer, and anti-inflammatory
properties. This study was designed to investigate the effects of GA on leukemia
cells growth, migration, and the mechanisms underlying the anti-cancer activities
of GA. MTT test was used to detect the effect of GA on TF-1 leukemia cell growth.
Wound closure assay and Transwell were adopted to assess the effect of GA on TF-1
migration and invasion. Migration and invasion related proteins including AKT and
mTOR were detected by western blot assay. We further used western blot and
immunofluorescence assay to evaluate the effect of GA on STAT3 phosphorylation in
vitro. We also evaluated the anti-tumor effect of GA in TF-1 tumor bearing BALB/c
mice model. The present study showed GA significant inhibit of TF-1 proliferation
in a dose and time-dependent manner. GA could remarkably inhibit TF-1 cell
migration and invasion; meanwhile effectively suppress AKT, mTOR, and STAT3
phosphorylation in TF-1 cells. GA in 100 mg/kg/ could inhibit the tumor growth in
vivo and down-regulated AKT, mTOR, and STAT3 phosphorylation in TF-1 tumor
tissues. Our findings suggest that GA is a promising therapeutic agent for
leukemia that targets the AKT/mTOR/STAT3 pathway.