In this mice study , EGCG prevents the receptor for IGF-I from being activated,
a function regarded as important in the previous post on Tykerb.
http://www.ncbi.nlm.nih.gov/entrez/q...=pubmed_docsum
Direct inhibition of insulin-like growth factor-I receptor kinase activity by (-)-epigallocatechin-3-gallate regulates cell transformation