Green Tea Catechins Show Promise in Chemoprevention of Cancer

Researchers at the University of Milan have made new findings on the potential of green tea catechins in preventing cancer. Their study, published in the Journal of Enzyme Inhibition and Medicinal Chemistry, provides a molecular docking investigation into the interaction between green tea catechins and glutathione S-transferase (GST P1-1). The study suggests that green tea catechins could have anti-oxidant effects, which could lead to desensitization of the GST P1-1 enzyme and a reduction in the metabolism of alkylating anti-cancer agents.

Key Takeaways:

• The study found that green tea catechins, particularly EGCG, exhibit a high docking potential with GST P1-1, indicating a strong interaction between the two.
• The competition mechanisms of green tea catechins could lead to enzyme desensitization, reducing the metabolism of alkylating anti-cancer agents.
• The study suggests that over-expression of GST P1-1 could result in tumor cell resistance, but green tea catechins could counteract this effect.
• The glutathione S-transferases (GSTs) family is a widely distributed phase-II detoxifying enzyme.
• The researchers concluded that their study provides a useful theoretical contribution in understanding the biochemical mechanisms involved in the chemotherapeutic use of green tea catechins in oxidative stress-related diseases.
• The study investigated four green tea catechins and four alkylating anticancer drugs in their interaction with GST P1-1.
• The researchers studied the docking of green tea catechins into the GST P1-1 model using molecular docking techniques.

Statistics:

• The study was published in the Journal of Enzyme Inhibition and Medicinal Chemistry, a peer-reviewed journal that publishes original research on enzymology and medicinal chemistry.
• The doi of the study is: 10.1081/JJE-111082113.
• The authors of the study are R. Artali, et al. from the University of Milan, Faculty of Pharmacy, Italy.
• The study was conducted in collaboration with Taylor & Francis Group Ltd, a leading publisher of scientific research.

Sources:

• Artali, R., et al. "Green tea catechins in chemoprevention of cancer: a molecular docking investigation into their interaction with glutathione S-transferase (GST P1-1)." Journal of Enzyme Inhibition and Medicinal Chemistry 24, no. 1 (2009): 287-95.
• University of Milan, Faculty of Pharmacy
• Taylor & Francis Group Ltd
• NewsRx.com