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Published on: September 8, 2017
Anti-Cancer Effects of Green Tea Polyphenols Against Prostate Cancer
Yasuyoshi Miyata1, Yohei Shida2, Tomoaki Hakariya3
1Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan. yasu-myt@nagasaki-u.ac.jp.
Abstract:
Prostate cancer is the most common cancer among men. Green tea consumption is reported to play an important role in the prevention of carcinogenesis in many types of malignancies, including prostate cancer; however, epidemiological studies show conflicting results regarding these anti-cancer effects. In recent years, in addition to prevention, many investigators have shown the efficacy and safety of green tea polyphenols and combination therapies with green tea extracts and anti-cancer agents in in vivo and in vitro studies. Furthermore, numerous studies have revealed the molecular mechanisms of the anti-cancer effects of green tea extracts. We believe that improved understanding of the detailed pathological roles at the molecular level is important to evaluate the prevention and treatment of prostate cancer. Therefore, in this review, we present current knowledge regarding the anti-cancer effects of green tea extracts in the prevention and treatment of prostate cancer, with a particular focus on the molecular mechanisms of action, such as influencing tumor growth, apoptosis, androgen receptor signaling, cell cycle, and various malignant behaviors. Finally, the future direction for the use of green tea extracts as treatment strategies in patients with prostate cancer is introduced.
Insights
Green tea extracts show promise in preventing and treating prostate cancer by targeting key molecular pathways. Further research is needed to fully utilize green tea
Area of Science:
- Oncology
- Chemoprevention
- Molecular Biology
Background:
- Prostate cancer is a leading cancer in men.
- Green tea's role in cancer prevention is debated, with conflicting epidemiological data.
- Recent research highlights green tea polyphenols' efficacy and safety in preclinical models.
Purpose of the Study:
- To review current knowledge on green tea extracts' anti-cancer effects in prostate cancer.
- To focus on the molecular mechanisms underlying these effects.
- To explore future therapeutic strategies using green tea extracts.
Main Methods:
- Literature review of in vivo and in vitro studies.
- Analysis of molecular mechanisms of green tea extracts.
- Examination of effects on tumor growth, apoptosis, and cell cycle.
Main Results:
- Green tea extracts demonstrate anti-cancer properties against prostate cancer.
- Molecular mechanisms include influencing tumor growth, apoptosis, androgen receptor signaling, cell cycle, and malignant behaviors.
- Combination therapies with green tea extracts show efficacy.
Conclusions:
- Green tea extracts hold potential for prostate cancer prevention and treatment.
- Understanding molecular mechanisms is crucial for therapeutic development.
- Further research can guide the use of green tea extracts in clinical settings.
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