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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhu, Xiang Lin, Na Liu, Ting-Ting Guan, Jun-Chang Yang, Weng-Xuan Liu, Yong Yu, Feng-Ling Jiang, Jiu Liu, Cong-Sen Zhang, Tao |
| Description | Author Affiliation: Yu FL ( Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China.) |
| Abstract | Staphylococcal enterotoxin B (SEB) and toxin produced by Staphylococcus aureus (S. aureus) are important in the pathogenesis of diseases. In the present study, we investigated the effects of SEB and toxin on ECV304 cells. It was identified that both SEB and toxin were capable of inducing the apoptosis of ECV304 cells in a dose and timedependent manner. In addition, SEB and toxin were able to induce the expression of TNF and the activation of caspase3 and 8 in the ECV304 cells. The inhibition of TNF (with its neutralizing antibody) and caspase3 and 8 [with the corresponding inhibitory peptides; z-N-acetyl-Asp-Glu-Val-Asp-aminomethyl-coumarin (DEVD)-fluoromethyl ketone (FMK) for inhibition of caspase3 and z-N-acetyl-Ile-Glu-Thr-Asp (IETD)-FMK) for inhibition of caspase8] significantly decreased the rates of cell apoptosis induced by SEB and toxin, but was not able to completely block the induced cell apoptosis. These data suggest that SEB and toxin induce ECV304 cell apoptosis via a similar mechanism, which is partially mediated by the extrinsic death pathway involving TNF and caspase8. These results provide insights into the synergistic pathogenicity of SEB and toxin during S. aureus infection. |
| ISSN | 17912997 |
| e-ISSN | 17913004 |
| Journal | Molecular Medicine Reports |
| Issue Number | 2 |
| Volume Number | 8 |
| Language | English |
| Publisher | Spandidos Publications |
| Publisher Date | 2013-08-01 |
| Publisher Place | Greece |
| Access Restriction | Open |
| Subject Keyword | Apoptosis Drug Effects Bacterial Toxins Toxicity Enterotoxins Hemolysin Proteins Caspase 3 Metabolism Caspase 8 Cell Line Dose-response Relationship, Drug Enzyme Activation Staphylococcus Aureus Tumor Necrosis Factor-alpha Research Support, Non-u.s. Gov't Discipline Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology Cancer Research Molecular Medicine Oncology |
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