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Clostridium difficile toxin B-induced apoptosis of colon cancer cells and related mechanisms / 中华微生物学和免疫学杂志
Chinese Journal of Microbiology and Immunology ; (12): 55-59, 2020.
Article Dans Chinois | WPRIM | ID: wpr-824825
ABSTRACT
Objective To analyze the effects of Clostridium difficile toxin B (TcdB) on the prolif-eration and apoptosis of colon cancer cell line SW480 and the possible mechanisms related to cell apoptosis. Methods SW480 cells were treated with different concentrations of TcdB. Cell proliferation was detected by MTT assay. Cell apoptosis and mitochondrial membrane potential were measured with flow cytometry. Re-sults TcdB significantly inhibited the proliferation of SW480 cells in a time-concentration dependent man-ner and the inhibition rate reached 46. 36% at 48 h. Flow cytometry results showed that TcdB could induce the apoptosis of SW480 cells in a time-concentration dependent manner and a 20. 83% apoptosis rate was in-duced by 800 ng/ml of TcdB at48 h. Conclusions TcdB could inhibit the proliferation and induce the ap-optosis of colon cancer SW480 cells, and the possible mechanisms might be relate to the initiation of mito-chondrial apoptosis pathway.

Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) langue: Chinois Texte intégral: Chinese Journal of Microbiology and Immunology Année: 2020 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) langue: Chinois Texte intégral: Chinese Journal of Microbiology and Immunology Année: 2020 Type: Article