Related Experiment Video
Updated: Aug 23, 2025

Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo
Published on: February 6, 2015
Suppression of the Antioxidant System and PI3K/Akt/mTOR Signaling Pathway in Cisplatin-Resistant Cancer Cells by
A A Sh Hasan1, E V Kalinina2, V V Tatarskiy3
1T. T. Berezov Department of Biochemistry, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia.
Abstract:
We studied the effect of quercetin on ovarian adenocarcinoma SKOV-3 cell line and isogenic subline SKOV-3/CDDP resistant to the anticancer drug cisplatin. It was found that in resistant cells, quercetin in a concentration of 100 μM that causes a decrease in the cell viability suppressed the expression of genes encoding the key antioxidant enzymes (SOD2, CAT, GPX1, and HO-1), transcription factor Nrf2, and kinases of the PI3K/Akt/mTOR signaling pathway. In parental cells, quercetin, on the contrary, increased the expression of these genes. The results confirm the redox-dependent regulation induced by quercetin and its opposite nature in cisplatin-sensitive and cisplatin-resistant cancer cells.
Related Concept Videos
Inhibition of Cdk Activity
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Treatment Resistant Cancers
Abnormal Proliferation
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...

