COMPOSITION FOR PREVENTING OR TREATING SJOGREN'S SYNDROME, BEHCET'S SYNDROME, ANKYLOSING SPONDYLITIS OR SYSTEMIC LUPUS ERYTHEMATOSUS COMPRISING EGCG AS AN ACTIVE INGREDIENT

摘要

PURPOSE: A pharmaceutical composition containing EGCG(epigallocatechin gallate) is provided to suppress differentiation of cytotoxic Th17 cells and to prevent or treat Sjogren syndrome, Behcet syndrome, or lupus. CONSTITUTION: A composition for preventing or treating Sjogren syndrome, Behcet syndrome, or lupus contains EGCG(epigallocatechin gallate) compound or salt thereof as an active ingredient. The EGCG suppresses or reduces differentiation of undifferentiated T cells into Th17 cells. A method for activating regulatory T cells comprises a step of treating the EGCG compounds or salt thereof to the T cells(Treg) in vitro. A functional food for treating or preventing Sjogren syndrome, Behcet syndrome, or lupus contains the EGCG compound or salt thereof as an active ingredient. A composition for suppressing immunity contains the EGCG compounds or salt thereof as an active ingredient.