scholarly journals Anti-Cancer Effects of Green Tea Polyphenols Against Prostate Cancer

Molecules ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 193 ◽  
Author(s):  
Yasuyoshi Miyata ◽  
Yohei Shida ◽  
Tomoaki Hakariya ◽  
Hideki Sakai
Keyword(s):  
Prostate Cancer ◽  
Green Tea ◽  
Molecular Mechanisms ◽  
Current Knowledge ◽  
Tea Polyphenols ◽  
Green Tea Polyphenols ◽  
Anti Cancer ◽  
Prevention And Treatment

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.

scholarly journals The Chemopreventive Properties and Therapeutic Modulation of Green Tea Polyphenols in Oral Squamous Cell Carcinoma

ISRN Oncology ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Ui-Lyong Lee ◽  
Sung-Weon Choi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cancer ◽  
Cell Carcinoma ◽  
Green Tea ◽  
Squamous Cell ◽  
Molecular Mechanisms ◽  
Green Tea Polyphenols ◽  
Etiologic Factor

Chemoprevention is a relatively novel and promising approach for controlling cancer that uses specific natural products or synthetic agents to suppress, reverse, or prevent premalignancy before transformation into invasive cancer. Oral cavity squamous cell carcinoma (OCSCC) represents a large, worldwide health burden with approximately 274,000 cases diagnosed annually worldwide. Smoking and alcohol consumption are major inducers of OCSCC. Recently, the human papilloma virus was also shown to potentially be an etiologic factor. Due to its easily identifiable risk factors and the presence of premalignant regions, oral cancer makes a good candidate for chemoprevention. Green tea is the most widely consumed beverage in the world, and it has received considerable attention because of its abundant, scientifically proven, beneficial effects on human health. In this review, we discuss the role of green tea in oral cancer chemoprevention with regard to the multiple molecular mechanisms proposed in various in vitro, in vivo, and clinical trials.

scholarly journals Epigallocatechin Gallate (EGCG), a Green Tea Polyphenol, Reduces Coronavirus Replication in a Mouse Model

Viruses ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2533
Author(s):  
Rackhyun Park ◽  
Minsu Jang ◽  
Yea-In Park ◽  
Yeonjeong Park ◽  
Woochul Jung ◽  
...  
Keyword(s):  
Mouse Model ◽  
Green Tea ◽  
Particle Production ◽  
Epigallocatechin Gallate ◽  
Tea Polyphenols ◽  
Green Tea Polyphenols ◽  
Tea Polyphenol ◽  
Green Tea Polyphenol

The COVID-19 pandemic has resulted in a huge number of deaths from 2020 to 2021; however, effective antiviral drugs against SARS-CoV-2 are currently under development. Recent studies have demonstrated that green tea polyphenols, particularly EGCG, inhibit coronavirus enzymes as well as coronavirus replication in vitro. Herein, we examined the inhibitory effect of green tea polyphenols on coronavirus replication in a mouse model. We used epigallocatechin gallate (EGCG) and green tea polyphenols containing more than 60% catechin (GTP60) and human coronavirus OC43 (HCoV-OC43) as a surrogate for SARS-CoV-2. Scanning electron microscopy analysis results showed that HCoV-OC43 infection resulted in virion particle production in infected cells. EGCG and GTP60 treatment reduced coronavirus protein and virus production in the cells. Finally, EGCG- and GTP60-fed mice exhibited reduced levels of coronavirus RNA in mouse lungs. These results demonstrate that green tea polyphenol treatment is effective in decreasing the level of coronavirus in vivo.

scholarly journals Quercetin increased bioavailability and decreased methylation of green tea polyphenols in vitro and in vivo

2012 ◽  
Vol 3 (6) ◽  
pp. 635 ◽  
Author(s):  
Piwen Wang ◽  
David Heber ◽  
Susanne M. Henning
Keyword(s):  
Green Tea ◽  
Tea Polyphenols ◽  
Green Tea Polyphenols

scholarly journals Anticancer Effects of Green Tea and the Underlying Molecular Mechanisms in Bladder Cancer

Medicines ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 87 ◽  
Author(s):  
Yasuyoshi Miyata ◽  
Tomohiro ScienMatsuoces ◽  
Kyohei Araki ◽  
Yuichiro Nakamura ◽  
Yuji Sagara ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Green Tea ◽  
Molecular Mechanisms ◽  
Treatment Strategies ◽  
In Vitro Studies ◽  
Green Tea Polyphenols ◽  
Tea Consumption ◽  
Anticancer Effects

Green tea and green tea polyphenols (GTPs) are reported to inhibit carcinogenesis and malignant behavior in several diseases. Various in vivo and in vitro studies have shown that GTPs suppress the incidence and development of bladder cancer. However, at present, opinions concerning the anticancer effects and preventive role of green tea are conflicting. In addition, the detailed molecular mechanisms underlying the anticancer effects of green tea in bladder cancer remain unclear, as these effects are regulated by several cancer-related factors. A detailed understanding of the pathological roles and regulatory mechanisms at the molecular level is necessary for advancing treatment strategies based on green tea consumption for patients with bladder cancer. In this review, we discuss the anticancer effects of GTPs on the basis of data presented in in vitro studies in bladder cancer cell lines and in vivo studies using animal models, as well as new treatment strategies for patients with bladder cancer, based on green tea consumption. Finally, on the basis of the accumulated data and the main findings, we discuss the potential usefulness of green tea as an antibladder cancer agent and the future direction of green tea-based treatment strategies for these patients.

Novel Findings of Anti-cancer Property of Propofol

2018 ◽  
Vol 18 (2) ◽  
pp. 156-165 ◽  
Author(s):  
Jiaqiang Wang ◽  
Chien-shan Cheng ◽  
Yan Lu ◽  
Xiaowei Ding ◽  
Minmin Zhu ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Cancer Progression ◽  
Molecular Mechanisms ◽  
Intravenous Anesthetic ◽  
The Past ◽  
Anti Cancer ◽  
Underlying Mechanisms ◽  
Recent Attention

Background: Propofol, a widely used intravenous anesthetic agent, is traditionally applied for sedation and general anesthesia. Explanation: Recent attention has been drawn to explore the effect and mechanisms of propofol against cancer progression in vitro and in vivo. Specifically, the proliferation-inhibiting and apoptosis-inducing properties of propofol in cancer have been studied. However, the underlying mechanisms remain unclear. Conclusion: This review focused on the findings within the past ten years and aimed to provide a general overview of propofol's malignance-modulating properties and the potential molecular mechanisms.

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