title: A novel thioredoxin reductase inhibitor inhibits cell growth and induces apoptosis in HL-60 and K562 cells.
abstract: Human thioredoxin reductase (TrxR) system is associated with cancer cell growth and anti-apoptosis process. Effects of 1,2-[bis(1,2-benzisoselenazolone-3(2H)-ketone)]ethane (BBSKE), a novel TrxR inhibitor, were investigated on human leukemia cell lines HL-60 and K562. BBSKE treatment induced cell growth inhibition and apoptosis in both cell lines. Apoptosis induced by BBSKE is through Bcl-2/Bax and caspase-3 pathways. Ehrlich's ascites carcinoma-bearing mice were used to investigate the anti-tumor effect of BBSKE in vivo. Tumor-bearing mice treated with BBSKE showed an increase of life span with a comparable effect to cyclophosphamide (CTX). These results suggest a potential usage of BBSKE as a therapeutic agent against non-solid tumors.
authors.affiliation: Department of Chem-Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
authors.forename: Zuo-Fu
authors.initials: ZF
authors.lastname: Peng
authors.forename: Lin-Xiang
authors.initials: LX
authors.lastname: Lan
authors.forename: Fang
authors.initials: F
authors.lastname: Zhao
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Qiang
authors.initials: Q
authors.lastname: Tan
authors.forename: Han-Wei
authors.initials: HW
authors.lastname: Yin
authors.forename: Hui-Hui
authors.initials: HH
authors.lastname: Zeng
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000494:pharmacology*; D049109:Cell Proliferation / Q000187:drug effects; D004791:Enzyme Inhibitors / Q000494:pharmacology*; D018922:HL-60 Cells; D006801:Humans; D020014:K562 Cells; D016566:Organoselenium Compounds / Q000494:pharmacology*; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000502:physiology; D013880:Thioredoxin-Disulfide Reductase / Q000037:antagonists & inhibitors*; D051028:bcl-2-Associated X Protein / Q000502:physiology
chemical_list: C478160:(1,2-bis(1,2-benzisoselenazolone-3(2H)-ketone))ethane; D019086:Bridged Bicyclo Compounds, Heterocyclic; D004791:Enzyme Inhibitors; D016566:Organoselenium Compounds; D019253:Proto-Oncogene Proteins c-bcl-2; D051028:bcl-2-Associated X Protein; D013880:Thioredoxin-Disulfide Reductase