Fig 6. Schematic of potential cellular pathways mediating the effects of green tea.
a) Green tea catechins may alter gene expression by inhibiting DNMT activity, resulting in reactivation of methylation-silenced genes such as Foxp3 and increased IL-10 expression. b) Catechins may stimulate upregulation of HDAC activity, thereby repressing gene transcription by promoting DNA winding, limiting the accessibility of certain DNA regions to the transcription factor NF-ĸB.