Matches in SemOpenAlex for { <https://semopenalex.org/work/W1977132032> ?p ?o ?g. }
- W1977132032 abstract "Yersinia pestis is a facultative bacterium that can survive and proliferate inside host macrophages and cause bubonic, pneumonic and systemic infection. Understanding the immune response generated by epitopes recognized by CD4+ and CD8+ T cells is important for the development of safe and effective vaccines designed to promote protective cellular immunity. Apart from humoral response, CD4+ T cells have shown to have a major role in combating the pneumonic form of the disease. In the present study, the secretion of IFN-γ and IL-4 by splenocytes, stimulated by different constructs of B and T cell epitopes of F1 and V antigens, was measured by ELISpot assay. We also measured perforin and IFN-γ expression as a function of cell mediated immunity by flow cytometry. Three B-T constructs of F1 and seven B-T constructs of V antigens produced a high number of IFN-γ secreting cells as compared to native antigen and a low number of IL-4 secreting cells. B-T conjugates of F1 and V antigens showed significantly high (p<0.001) percentage of CD4+ IFN-γ(+) cells as compared to CD8+ IFN-γ(+) cells. Thus, the study highlights the importance of Th1 cytokine and existence of high proportion of CD4+ T cells probably contributing protection in the host. This study proposes a new perspective for the development of vaccination strategies for Y. pestis that trigger T cell immune response." @default.
- W1977132032 created "2016-06-24" @default.
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- W1977132032 date "2012-01-01" @default.
- W1977132032 modified "2023-10-03" @default.
- W1977132032 title "Evaluation of CD4+/CD8+ T-cell expression and IFN-γ, perforin secretion for B–T constructs of F1 and V antigens of Yersinia pestis" @default.
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- W1977132032 doi "https://doi.org/10.1016/j.intimp.2011.10.012" @default.
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