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2017 ; 8
(34
): 56546-56557
Nephropedia Template TP
gab.com Text
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English Wikipedia
Metformin increases chemo-sensitivity via gene downregulation encoding DNA
replication proteins in 5-Fu resistant colorectal cancer cells
#MMPMID28915611
Kim SH
; Kim SC
; Ku JL
Oncotarget
2017[Aug]; 8
(34
): 56546-56557
PMID28915611
show ga
Metformin is most widely prescribed for type 2 diabetes. Recently, evidences have
shown that metformin has anticancer effects on pancreatic-, colorectal-,
ovarian-, and other cancers. Because metformin has less adverse effects and is
inexpensive, it could be a useful chemo-therapeutic agent with anticancer
effects. In this study, we demonstrated metformin inhibited by cell
proliferation, cell migration ability, clonogenic ability, and cancer stem cell
population. Metformin also induced cell cycle arrest in parental-(SNU-C5), and
5-Fu resistant-colorectal cancer cell line (SNU-C5_5FuR). Moreover, a treatment
that combines 5-Fu and metformin was found to have a synergistic effect on the
cell proliferation rate, especially in SNU-C5_5FuR, which was mediated by the
activation of AMPK pathway and NF-?B pathway, well-known metformin mechanisms. In
this study, we suggested novel anticancer mechanism of metformin that inhibited
DNA replication machinery, such as the MCM family in SNU-C5_5FuR. In conclusion,
we provided that how metformin acts as not only a chemo-sensitizer, but also as a
synergistic effector of 5-Fu in the 5-Fu resistant-cell line. We speculate that
metformin used for adjuvant therapy is effective on 5-Fu resistant cancer cells.