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Quercetin suppresses HeLa cells by blocking PI3K/Akt pathway
Tao Xiang1, Yong Fang2, Shi-Xuan Wang1
1Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Summary
Quercetin effectively inhibits human cervix cancer (HeLa) cell growth and triggers apoptosis. This natural compound shows potential as an anti-cancer agent by influencing key cell signaling pathways.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Human cervical cancer remains a significant health concern, necessitating novel therapeutic strategies.
- Quercetin, a flavonoid found in plants, has demonstrated various biological activities, including potential anti-cancer effects.
Purpose of the Study:
- To investigate the anti-proliferative and pro-apoptotic effects of quercetin on human cervical cancer (HeLa) cells.
- To elucidate the underlying molecular mechanisms, including cell cycle regulation and apoptosis-related protein expression.
Main Methods:
- HeLa cells were treated with varying concentrations of quercetin.
- Cell viability (MTT assay), apoptosis (Annexin-V/PI, DNA ladder), cell cycle distribution (flow cytometry), and protein expression (Western blotting) were analyzed.
Main Results:
- Quercetin significantly inhibited HeLa cell proliferation and induced apoptosis in a dose- and time-dependent manner.
- Apoptosis was linked to G0/G1 cell cycle arrest and altered expression of apoptosis-related proteins (Bcl-2, Bax).
- Quercetin downregulated PI3K and p-Akt expression, suggesting involvement of the PI3K/Akt signaling pathway.
Conclusions:
- Quercetin induces apoptosis in HeLa cells through the PI3K/Akt signaling pathway.
- Quercetin exhibits potential as a therapeutic agent for human cervical cancer.
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