title: FADD-dependent apoptosis induction in Jurkat leukemia T-cells by the resveratrol analogue, 3,4,5-trihydroxy-trans-stilbene.
abstract: The plant-produced compound, resveratrol (3,5,4'-trihydroxy-trans-stilbene, 3,4,5-THS), induces apoptosis in various human leukemia cell types in vitro, and thus appears to be a promising anti-leukemia agent. In this study, we observed that treatment of resveratrol-resistant Jurkat cells with the resveratrol analogue, 3,4,5-trihydroxy-trans-stilbene (3,4,5-THS), rapidly induced extensive apoptosis, indicating that the apoptotic activity of the analogue differed from that of the parental compound resveratrol. Indeed, we found that treatment of Jurkat cells with 3,4,5-THS, unlike treatment with resveratrol, induced activation of caspase-8 and apoptosis by a Fas-associated death domain (FADD) protein-dependent mechanism without involving the known death ligands CD95 ligand (CD95L), tumor necrosis factor alpha (TNFalpha) and TNF-related apoptosis-inducing ligand (TRAIL). Therefore, 3,4,5-THS induced activation of a FADD-dependent apoptotic mechanism that was unresponsive to the parental compound resveratrol. Therefore, the ability of 3,4,5-THS, but not resveratrol, to induce apoptosis demonstrates a structure-associated apoptotic activity of the resveratrol analogue.
authors.affiliation: Department of Biology, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
authors.forename: Yongbao
authors.initials: Y
authors.lastname: Wang
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.forename: Jinchun
authors.initials: J
authors.lastname: Cheng
authors.forename: Li
authors.initials: L
authors.lastname: Yang
authors.forename: Zhong-Li
authors.initials: ZL
authors.lastname: Liu
authors.forename: Kannan
authors.initials: K
authors.lastname: Balan
authors.forename: Panayotis
authors.initials: P
authors.lastname: Pantazis
authors.forename: James H
authors.initials: JH
authors.lastname: Wyche
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Han
mesh_terms: D048868:Adaptor Proteins, Signal Transducing / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*; D017209:Apoptosis / Q000187:drug effects* / Q000502:physiology; D053200:Fas-Associated Death Domain Protein; D006801:Humans; D019169:Jurkat Cells; D000077185:Resveratrol; D013267:Stilbenes / Q000737:chemistry* / Q000494:pharmacology*
chemical_list: D048868:Adaptor Proteins, Signal Transducing; C505533:FADD protein, human; D053200:Fas-Associated Death Domain Protein; D013267:Stilbenes; D000077185:Resveratrol