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- W1889475099 abstract "The aim of this study was to evaluate the effect of porins from Salmonella typhimurium on costimulatory molecules such as CD80/CD86 and CD28/CD152. The interactions between these molecules are able to influence the immune response through the regulation of cytokines release which, on their own, are able to regulate the immunological response by a feedback mechanism.S. typhimurium strain SH5014 (a rough lipopolysaccharide (LPS) producing strain) was used as the source of porins and LPS. Peripheral blood mononuclear cells were obtained from healthy adult donors. THP1 cells were obtained from ATCC (Rockville, MD, USA). Immunofluorescence and flow cytometry were performed using a FACS IV (Becton-Dickinson, Mountain View, CA, USA).Our results show that porins of S. typhimurium increase the expression of CD86 and the expression of CD80 both on B lymphocytes and macrophages, while the expression of CD28 and CD152 on T lymphocytes was unaltered. The expression of CD80 and CD86 is dose-dependent and starts after 24 h post treatment, peaks at 48 h and goes back to the basal value after 72 h.S. typhimurium porins are able to induce a high expression of costimulatory molecules (CD80 and CD86) on lymphocytes and macrophages." @default.
- W1889475099 created "2016-06-24" @default.
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- W1889475099 date "2003-11-01" @default.
- W1889475099 modified "2023-09-27" @default.
- W1889475099 title "Porins and lipopolysaccharide from Salmonella typhimurium regulate the expression of CD80 and CD86 molecules on B cells and macrophages but not CD28 and CD152 on T cells" @default.
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- W1889475099 doi "https://doi.org/10.1046/j.1469-0691.2003.00728.x" @default.
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