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2017 ; 12
(4
): e0174276
Nephropedia Template TP
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English Wikipedia
Metformin inhibited esophageal squamous cell carcinoma proliferation in vitro and
in vivo and enhanced the anti-cancer effect of cisplatin
#MMPMID28406985
Wang F
; Ding X
; Wang T
; Shan Z
; Wang J
; Wu S
; Chi Y
; Zhang Y
; Lv Z
; Wang L
; Fan Q
PLoS One
2017[]; 12
(4
): e0174276
PMID28406985
show ga
Esophageal squamous cell carcinoma (ESCC) is an aggressive malignancy with poor
prognosis in China. Chemotherapy now is one of the most frequently used
treatments for patients with ESCC in middle or late stage, however the effects
were often limited by increased chemoresistance or treatment toxicity. So it is
urgent to find new drugs to treat ESCC patients. Metformin with low cost and
toxicity has proved to have anti-cancer effects in a numerous cancers, while its
role and mechanism in ESCC has seldom been studied. In the present study, we
found that metformin exhibited not only an anti-proliferation ability in a dose
and time dependent manner but also a proapoptosis effect in a dose dependent
manner in ESCC cell line KYSE450. Our in vivo experiment also showed that
metformin markedly inhibited KYSE450 xenograft tumors growth compared to those
treated with normal saline. What's more, no obvious toxic reactions were
observed. To further explore the underlying mechanism, we found that metformin
treatment could significantly damp the expression of 4EBP1 and S6K1 in KYSE 450
cells in vitro and in vivo, furthermore, the p-4EBP1 and p-S6K1 expression in
KYSE 450 cells were also inhibited greatly in vitro and in vivo. During the
therapy of cancer, in order to overcome side effects, combination therapy was
often used. In this paper, we demonstrated that metformin potentiated the effects
of cisplatin via inhibiting cell proliferation and promoting cell apoptosis.
Taken together, metformin owned the potential anti-cancer effect on ESCC in
monotherapy or was combined with cisplatin and these results laid solid basis for
the use of metformin in ESCC.
|Adaptor Proteins, Signal Transducing/biosynthesis
[MESH]