In a review written by Chung et al.
(2010) the cancer preventative mechanisms of green tea polyphenols are
discussed in detail. The polyphenolic
structure found in green tea is a reactive oxygen scavenger acting as a
powerful antioxidant in the body. Research cited in this review has
demonstrated the inhibitory effects of green tea on lung, intestinal, and
prostate tumor growth. Vascular
endothelial growth factor (VEGF) is decreased as a result of inhibition of
epidermal growth factor receptor (EGFR) signaling with administration of green
tea polyphenols in vivo. Large human
trials with tea polyphenols are underway and are likely to provide further
evidence of cancer preventative effects of green tea.
Yang, C. S.,
& Wang, X. (2010). Green tea and cancer prevention. Nutrition and Cancer,
62(December 2012), 931–937. doi:10.1080/01635581.2010.509536
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