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2,6-DMBQ is a novel mTOR inhibitor that reduces gastric cancer growth in vitro and in vivo.


ABSTRACT:

Background

Fermented wheat germ extract has been reported to exert various pharmacological activities, including anti-oxidant, anti-cell growth and cell apoptosis in various cancer cells. Although 2,6-dimethoxy-1,4-benzoquinone (2,6-DMBQ) is a benzoquinone compound and found in fermented wheat germ extract, its anticancer effects and molecular mechanism(s) against gastric cancer have not been investigated.

Methods

Anticancer effects of 2,6-DMBQ were determined by MTT, soft agar, cell cycle and Annexin V analysis. Potential candidate proteins were screened via in vitro kinase assay and Western blotting. mTOR knockdown cell lines were established by lentiviral infection with shmTOR. The effect of 2,6-DMBQ on tumor growth was assessed using gastric cancer patient-derived xenograft models.

Results

2,6-DMBQ significantly reduced cell growth and induced G1 phase cell cycle arrest and apoptosis in gastric cancer cells. 2,6-DMBQ reduced the activity of mTOR in vitro. The inhibition of cell growth by 2,6-DMBQ is dependent upon the expression of the mTOR protein. Remarkably, 2,6-DMBQ strongly reduced patient-derived xenograft gastric tumor growth in an in vivo mouse model.

Conclusions

2,6-DMBQ is an mTOR inhibitor that can be useful for treating gastric cancer. It has therapeutic implications for gastric cancer patients.

SUBMITTER: Zu X 

PROVIDER: S-EPMC7285595 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Publications

2,6-DMBQ is a novel mTOR inhibitor that reduces gastric cancer growth in vitro and in vivo.

Zu Xueyin X   Ma Xiaoli X   Xie Xiaomeng X   Lu Bingbing B   Laster Kyle K   Liu Kangdong K   Dong Zigang Z   Kim Dong Joon DJ  

Journal of experimental & clinical cancer research : CR 20200609 1


<h4>Background</h4>Fermented wheat germ extract has been reported to exert various pharmacological activities, including anti-oxidant, anti-cell growth and cell apoptosis in various cancer cells. Although 2,6-dimethoxy-1,4-benzoquinone (2,6-DMBQ) is a benzoquinone compound and found in fermented wheat germ extract, its anticancer effects and molecular mechanism(s) against gastric cancer have not been investigated.<h4>Methods</h4>Anticancer effects of 2,6-DMBQ were determined by MTT, soft agar, c  ...[more]

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