PO and ID BCG vaccination in humans induce distinct mucosal and systemic immune responses and CD4
| Autor: | D F, Hoft, M, Xia, G L, Zhang, A, Blazevic, J, Tennant, C, Kaplan, G, Matuschak, T J, Dube, H, Hill, L S, Schlesinger, P L, Andersen, V, Brusic |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Adolescent Injections Intradermal Denmark Administration Oral routes of vaccine administration Lymphocyte Activation complex mixtures Article Interferon-gamma Young Adult Humans Tuberculosis BCG Immunity Mucosal Lung Gene Expression Profiling Vaccination Middle Aged Th1 Cells Antibodies Bacterial Systems biology approach CD4 Antigens Immunoglobulin A Secretory BCG Vaccine Female Transcriptome Follow-Up Studies |
| Zdroj: | Mucosal immunology |
| ISSN: | 1935-3456 |
| Popis: | Protective efficacy of Bacillus Calmette-Guérin (BCG) may be affected by the methods and routes of vaccine administration. We have studied the safety and immunogenicity of oral (PO) and/or intradermal (ID) administration of BCG in healthy human subjects No major safety concerns were detected in the 68 healthy adults vaccinated with PO and/or ID BCG. Although both PO and ID BCG could induce systemic Th1 responses capable of IFN-γ production, ID BCG more strongly induced systemic Th1 responses. In contrast, stronger mucosal responses (TB-specific secretory IgA and bronchoalveolar lavage T cells) were induced by PO BCG vaccination. To generate preliminary data comparing the early gene signatures induced by mucosal and systemic BCG vaccination, CD4+ memory T cells were isolated from subsets of BCG vaccinated subjects pre- (Day 0) and post-vaccination (Days 7 and 56), rested or stimulated with BCG infected dendritic cells, and then studied by Illumina BeadArray transcriptomal analysis. Notably, distinct gene expression profiles were identified both on Day 7 and Day 56 comparing the PO and ID BCG vaccinated groups by GSEA analysis. Future correlation analyses between specific gene expression patterns and distinct mucosal and systemic immune responses induced will be highly informative for TB vaccine development. |
| Databáze: | OpenAIRE |
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