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Hyperoside and let-7a-5p synergistically inhibits lung cancer cell proliferation via inducing G1/S phase arrest
Jia-Peng Li1, Xing-Hua Liao1, Yuan Xiang1
1Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, Hubei 430081, PR China.
Abstract:
Lung cancer remains one of the most aggressive human malignancies with a low survival rate. Hyperoside (quercetin-3-O-β-d-galactopyranoside) is a flavonol glycoside with an anti-cancer activity. The microRNA-let-7 was widely regarded as a tumor suppressor in human tumors. Here, we investigated the role of hyperoside and let-7a-5p on the lung cancer cell proliferation, cell cycle and apoptosis in A549 cells in vitro. Our results showed that hyperoside could inhibit the proliferation of A549 cells through inducing apoptosis and G1/S phase arrest. Let-7a-5p could inhibit the proliferation of A549 cells via inhibiting the process of G1/S phase. Additionally, hyperoside and let-7a-5p had a synergetic effect on suppressing the proliferation of A549 cells; microRNA-let-7a-5p directly regulated the expression of CCND1 in A549 cells. Our study illustrated that hyperoside and microRNA-let7a-5p might provide a synergistic effect on anti-cancer, which may provide a new idea for lung cancer treatment.
Insights
Hyperoside and microRNA-let-7a-5p synergistically inhibit lung cancer cell proliferation by inducing apoptosis and cell cycle arrest. This combination therapy offers a promising new avenue for treating lung cancer.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Lung cancer is a highly aggressive malignancy with poor survival rates.
- Hyperoside, a flavonol glycoside, exhibits anti-cancer properties.
- MicroRNA-let-7 (let-7) acts as a tumor suppressor in various human cancers.
Purpose of the Study:
- To investigate the combined effects of hyperoside and let-7a-5p on A549 lung cancer cell proliferation, cell cycle, and apoptosis.
- To elucidate the underlying molecular mechanisms of hyperoside and let-7a-5p in lung cancer suppression.
Main Methods:
- In vitro study using A549 lung cancer cell line.
- Assessment of cell proliferation, apoptosis, and cell cycle distribution.
- Analysis of microRNA-let-7a-5p expression and its target gene CCND1.
Main Results:
- Hyperoside inhibited A549 cell proliferation by inducing apoptosis and G1/S phase arrest.
- Let-7a-5p suppressed A549 cell proliferation by inhibiting G1/S phase progression.
- Hyperoside and let-7a-5p demonstrated a synergistic effect in suppressing lung cancer cell proliferation.
- MicroRNA-let-7a-5p was found to directly regulate CCND1 expression in A549 cells.
Conclusions:
- Hyperoside and microRNA-let-7a-5p exhibit a synergistic anti-cancer effect against lung cancer cells.
- The combination of hyperoside and let-7a-5p may offer a novel therapeutic strategy for lung cancer treatment.
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