PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11698415-0 2002 Green tea polyphenol stimulates a Ras, MEKK1, MEK3, and p38 cascade to increase activator protein 1 factor-dependent involucrin gene expression in normal human keratinocytes. Polyphenols 10-20 mitogen-activated protein kinase kinase kinase 1 Homo sapiens 39-44