isogarcinol

Isogarcinol is a natural polyisoprenylated benzophenone first isolated from plant species in the genus Garcinia. It has immunosuppressant actions, inhibiting the protein phosphatase calcineurin (IC50 = 36 μM) and suppressing the proliferation of T cells. Oral administration of isogarcinol in mice decreases delayed type hypersensitivity, prolongs graft survival in allogeneic skin transplants, suppresses inflammation in collagen-induced arthritis, and reduces clinical symptoms in experimental autoimmune encephalomyelitis. Isogarcinol inhibits the proliferation of HL-60 and PC-3 cancer cells (IC50s = 4 and 8 μg ml, respectively) through cell cycle arrest and apoptosis.

7-epi-Isogarcinol 是一种PPAP（多环聚异戊二烯酰基间苯三酚），显示出适度的抗增殖活性。它通过阻断STAT3信号通路，诱导apoptosis（细胞凋亡）并抑制细胞迁移作用。