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Finding an efficient tetramethylated hydroxydiethylene of resveratrol analogue for potential anticancer agent
Zhen-Hui Xin1, Ya-Li Meng1, Wen-Jing Jiang1
11Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food and College of Laboratory Medicine, Hebei North University, 11 Diamond Street South, Zhangjiakou, 075000 Hebei People's Republic of China.
Abstract:
With the improvement and advance in cancer diagnosis and treatment, the cancer is still a major cause of morbidity and mortality throughout the world. Obviously, new breakthroughs in therapies remain be urgent needed. In this work, we designed and synthesized the compound 1-4, namely resveratrol analogues with methylation of hydroxy distyrene, to further explore its new anti-cancer potential. Encouragingly, compound 1 ((E)-4,4'-(ethene-1,2-diyl)bis(3,5-dimethylphenol)) exhibited cytotoxicity superior to resveratrol in MCF 7 cells. More importantly, the compound 1 showed greater toxicity to tumor cells than that to normal cells, which proved that it could selectively kill tumor cells. The favorable results encouraged us to explore the inhibitory mechanism of compound 1 on MCF 7 cells. The research finding indicated the compound 1 inhibited tumor cell proliferation by both arresting cell cycle in S phase and apoptosis via a prooxidant manner. In addition, the results further verified compound 1 caused cell cycle arrest in S phase and apoptosis by down-regulation of the cycling A1/cycling A2 expression and the rise of Bax/Bcl-2 ratio in a p21-dependant pathway in MCF 7 cells. Therefore, these results are helpful for the effective design of anticancer reagents and the better understanding of their mechanism of action.
Insights
A novel resveratrol analogue, compound 1, demonstrates superior anti-cancer activity against MCF-7 cells by selectively inducing S-phase cell cycle arrest and apoptosis through a prooxidant mechanism.
Area of Science:
- Medicinal Chemistry
- Molecular Biology
- Oncology
Background:
- Cancer remains a leading global cause of death, necessitating novel therapeutic strategies.
- Resveratrol, a natural polyphenol, exhibits anti-cancer properties but requires optimization for enhanced efficacy.
- Development of synthetic analogues offers a promising avenue for improved anti-cancer drug discovery.
Purpose of the Study:
- To design and synthesize novel resveratrol analogues with methylated hydroxy distyrene.
- To evaluate the anti-cancer potential of these analogues, particularly compound 1, against MCF-7 cells.
- To elucidate the mechanism of action of compound 1 in inhibiting tumor cell proliferation.
Main Methods:
- Synthesis of resveratrol analogues, including compound 1 ((E)-4,4'-(ethene-1,2-diyl)bis(3,5-dimethylphenol)).
- Cytotoxicity assays comparing compound 1 and resveratrol in MCF-7 and normal cells.
- Cell cycle analysis and apoptosis assays to investigate the mechanism of action.
- Western blot analysis to assess the expression of key proteins involved in cell cycle regulation and apoptosis.
Main Results:
- Compound 1 displayed superior cytotoxicity to resveratrol in MCF-7 cells.
- Compound 1 exhibited selective toxicity towards tumor cells over normal cells.
- Compound 1 induced cell cycle arrest in the S phase and promoted apoptosis via a prooxidant manner.
- The anti-cancer effects were mediated by down-regulation of cyclin A1/A2 and an increased Bax/Bcl-2 ratio in a p21-dependent pathway.
Conclusions:
- Compound 1 represents a promising anti-cancer agent with enhanced efficacy and selectivity.
- The mechanism involves S-phase cell cycle arrest and apoptosis induction through a prooxidant pathway.
- These findings provide valuable insights for the rational design of novel anti-cancer therapeutics.
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