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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cancer+Sci
2018 ; 109
(4
): 1066-1074
Nephropedia Template TP
gab.com Text
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English Wikipedia
Antitumor effects of metformin are a result of inhibiting nuclear factor kappa B
nuclear translocation in esophageal squamous cell carcinoma
#MMPMID29396886
Sekino N
; Kano M
; Matsumoto Y
; Sakata H
; Akutsu Y
; Hanari N
; Murakami K
; Toyozumi T
; Takahashi M
; Otsuka R
; Yokoyama M
; Shiraishi T
; Okada K
; Hoshino I
; Iida K
; Akimoto AK
; Matsubara H
Cancer Sci
2018[Apr]; 109
(4
): 1066-1074
PMID29396886
show ga
Esophageal squamous cell carcinoma (ESCC) is an intractable digestive organ
cancer that has proven difficult to treat despite multidisciplinary therapy, and
a new treatment strategy is demanded. Metformin is used for type 2 diabetes
mellitus and its antitumor effects have been reported recently. Metformin exerts
antitumor effects in various respects, such as inhibiting inflammation, tumor
growth and epithelial-mesenchymal transition (EMT). However, few reports have
described the efficacy of metformin on ESCC, and their findings have been
controversial. We analyzed the antitumor effects of metformin and clarified its
effects on anti-inflammation, growth suppression and EMT inhibition. Activation
of nuclear factor kappa B (NF-?B), the major transcription factor induced by
inflammation, was investigated by immunostaining. We found that localization of
NF-?B in the nucleus was reduced after metformin treatment. This suggests that
metformin inhibited the activation of NF-?B. Metformin inhibited tumor growth and
induced apoptosis in ESCC cell lines. Associated with EMT, we examined cell
motility by a wound healing assay and the epithelial marker E-cadherin expression
of various ESCC cell lines by western blotting. Metformin inhibited cell motility
and induced E-cadherin expression. In conclusion, metformin showed multiple
antitumor effects such as growth suppression, invasion inhibition, and control of
EMT by inhibiting NF-?B localization on ESCC. Further exploration of the marker
of treatment efficacy and combination therapy could result in the possibility for
novel treatment to use metformin on ESCC.