Jaceosidin induces apoptosis and inhibits migration in AGS gastric cancer cells by regulating ROS-mediated signaling
Jian Liu1, Shu-Mei Li2, Yan-Jun Tang3
1College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People's Republic of China.
Abstract:
Jaceosidin (JAC) is a natural flavonoid with anti-oxidant and other pharmacological activities; however, its anti-cancer mechanism remains unclear. We investigated the mechanism of action of JAC in gastric cancer cells. Cytotoxicity and apoptosis assays showed that JAC effectively killed multiple gastric cancer cells and induced apoptosis in human gastric adenocarcinoma AGS cells via the mitochondrial pathway. Network pharmacological analysis suggested that its activity was linked to reactive oxygen species (ROS), AKT, and MAPK signaling pathways. Furthermore, JAC accumulated ROS to up-regulate p-JNK, p-p38, and IκB-α protein expressions and down-regulate the p-ERK, p-STAT3, and NF-κB protein expressions. Cell cycle assay results showed that JAC accumulated ROS to up-regulate p21 and p27 protein expressions and down-regulate p-AKT, CDK2, CDK4, CDK6, Cyclin D1, and Cyclin E protein expressions to induce G0/G1 phase arrest. Cell migration assay results showed JAC accumulated ROS to down-regulate Wnt-3a, p-GSK-3β, N-cadherin, and β-catenin protein expressions and up-regulate E-cadherin protein expression to inhibit migration. Furthermore, N-acetyl cysteine pre-treatment prevented the change of these protein expressions. In summary, JAC induced apoptosis and G0/G1 phase arrest and inhibited migration through ROS-mediated signaling pathways in AGS cells.
Insights
Jaceosidin (JAC), a natural flavonoid, effectively combats gastric cancer by inducing apoptosis and cell cycle arrest. Its anti-cancer effects are mediated by reactive oxygen species (ROS) signaling pathways.
Area of Science:
- Natural Product Chemistry
- Molecular Pharmacology
- Cancer Biology
Background:
- Jaceosidin (JAC) is a natural flavonoid with known antioxidant properties.
- The precise anti-cancer mechanism of JAC, particularly in gastric cancer, requires elucidation.
Purpose of the Study:
- To investigate the anti-cancer mechanism of Jaceosidin (JAC) in human gastric adenocarcinoma AGS cells.
- To identify the key signaling pathways involved in JAC's cytotoxic and anti-proliferative effects.
Main Methods:
- Cytotoxicity and apoptosis assays were performed.
- Network pharmacology analysis was employed to predict signaling pathways.
- Western blotting was used to analyze protein expression changes.
- Cell cycle and migration assays were conducted.
Main Results:
- JAC induced apoptosis in AGS cells via the mitochondrial pathway.
- JAC modulated reactive oxygen species (ROS) levels, impacting AKT and MAPK signaling.
- JAC caused G0/G1 phase arrest by regulating cell cycle proteins and inhibited cell migration by affecting the Wnt/β-catenin pathway.
- N-acetyl cysteine reversed these protein expression changes, confirming ROS mediation.
Conclusions:
- Jaceosidin (JAC) exhibits anti-cancer properties against gastric cancer cells.
- JAC exerts its effects through ROS-mediated induction of apoptosis, G0/G1 cell cycle arrest, and inhibition of migration.
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