title: Influence of estradiol analogue on cell growth, morphology and death in esophageal carcinoma cells.
abstract: 2-Methoxyestradiol-bis-sulphamate is a bis-sulphamoylated derivative of the naturally occurring 17-beta-estradiol metabolite namely 2-methoxyestradiol. 2-Methoxyestradiol-bis-sulphamate is regarded as a potential anticancer drug with increased antiproliferative activity when compared to 2-methoxyestradiol. The aim of this pilot in vitro study was to determine the influence of 2-methoxyestradiol-bis-sulphamate on cell growth, morphology and possible induction of certain types of cell death in the SNO esophageal carcinoma cell line. A dose-dependent study (0.2-1.0 microM) was conducted with an exposure time of 24 hours. Data revealed that 2-methoxyestradiol-bis-sulphamate reduced cell numbers statistically significantly to 74% after exposure to 0.4 microM of the drug. Morphological studies including light microscopy demonstrated hallmarks of apoptosis, while fluorescent microscopy revealed both the presence of apoptosis and autophagy as types of cell death being induced in SNO cells after 24 hours of exposure to 0.4 microM 2-methoxyestradiol-bis-sulphamate.
authors: Department of Physiology, University of Pretoria, Pretoria, South Africa.
authors: Thandi
authors: T
authors: Mqoco
authors: Sumari
authors: S
authors: Marais
authors: Annie
authors: A
authors: Joubert
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D001343:Autophagy / Q000187:drug effects; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002452:Cell Count; D002453:Cell Cycle / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D045744:Cell Line, Tumor; D004305:Dose-Response Relationship, Drug; D004938:Esophageal Neoplasms / Q000473:pathology*; D004964:Estriol / Q000031:analogs & derivatives* / Q000494:pharmacology; D006801:Humans; D008857:Microscopy, Interference; D010865:Pilot Projects; D013194:Staining and Labeling
chemical_list: C053615:2-methoxyestriol; D004964:Estriol