title: [Ouabain-induced apoptosis of Jurkat cells correlates with activation of caspase-3 and regulation of Bcl-2 gene family].
abstract: The study was aimed to explore the apoptosis effect of ouabain on Jurkat cells and its mechanism. MTT method was used to observe the inhibitory effect of ouabain on Jurkat cell proliferation. Apoptosis was detected by using flow cytometry (FCM) and the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end-labeling reaction method (TUNEL). The protein expressions of Bax, Bcl-2 and active subunits of caspase-3 were measured by Western blot. Activities of caspase-3 were determined by colorimetry method. The results showed that ouabain could induce apoptosis of Jurkat cells, the expression of Bax protein in process of cell apoptosis, caspase-3 activity of Jurkat cells were remarkably enhanced after ouabain treatment. It is concluded that ouabain may induce apoptosis of Jurkat cells due to the activation of caspase-3 resulting from regulation of Bax protein and Bcl-2 gene expressions.
authors.affiliation: Department of Pediatrics, Yichang Central Hospital, The First Clinical Medical College of Sanxia University, Yichang 443003, China. xionganxiu@hotmail.com
authors.forename: An-Xiu
authors.initials: AX
authors.lastname: Xiong
authors.forename: Min
authors.initials: M
authors.lastname: Wang
authors.forename: Run-Ming
authors.initials: RM
authors.lastname: Jin
authors.forename: Yan
authors.initials: Y
authors.lastname: Bai
authors.forename: Wen
authors.initials: W
authors.lastname: Lin
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D053148:Caspase 3 / Q000378:metabolism*; D049109:Cell Proliferation / Q000187:drug effects; D019254:Genes, bcl-2 / Q000235:genetics*; D006801:Humans; D019169:Jurkat Cells; D010042:Ouabain / Q000494:pharmacology*; D051028:bcl-2-Associated X Protein / Q000096:biosynthesis / Q000235:genetics
chemical_list: D051028:bcl-2-Associated X Protein; D010042:Ouabain; D053148:Caspase 3