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Quorum sensing autoinducer 3OC12-HSL of Pseudomonas aeruginosa induces the apoptosis of Caco-2 cells / 中华微生物学和免疫学杂志
Chinese Journal of Microbiology and Immunology ; (12): 506-510, 2010.
Artigo em Chinês | WPRIM | ID: wpr-382793
ABSTRACT
Objective To investigate the effect of quorum sensing autoinducer 3OC12-HSL of Pseudomonas aeruginosa on the apoptosis of Caco-2 cells and its mechanism. Methods Caco-2 cells were incubated with 3OC12-HSL for 4 h and then examined by MTT method for cytoactivities. Flow cytometry was used to analyze apoptosis rate of Caco-2 cells. Expression of apoptosis associated proteins p-p38/MAPK and NF-κB were detected by Western blot. Results After exposure to 3OC12-HSL for 4 h, cytoactivities of Caco-2 cells was reduced(P<0.05) with dose-dependent pattern, and higher dose of 3OC12-HSL leaded to increasing apoptosis rate of Caco-2 cells(P<0.05). 3OC12-HSL raised expression of apoptosis associated proteins p-p38/MAPK and NF-κB detected by Western blot. Conclusion Quorum sensing autoinducer 3OC12-HSL can effect cytoactivities of Caco-2 cells and may induce its apoptosis by enhancing the expression of p-p38/MAPK and NF-κB protein.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Chinese Journal of Microbiology and Immunology Ano de publicação: 2010 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Chinese Journal of Microbiology and Immunology Ano de publicação: 2010 Tipo de documento: Artigo