Immunodominant Tuberculosis CD8 Antigens Preferentially Restricted by HLA-B

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Immunodominant Tuberculosis CD8 Antigens Preferentially Restricted by HLA-B

CD8(+) T cells are essential for host defense to intracellular bacterial pathogens such as Mycobacterium tuberculosis (Mtb), Salmonella species, and Listeria monocytogenes, yet the repertoire and dominance pattern of human CD8 antigens for these pathogens remains poorly characterized. Tuberculosis (TB), the disease caused by Mtb infection, remains one of the leading causes of infectious morbidi...

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HIV-1 specific HLA-B-restricted CD8+ T cell responses differ from HLA-C-restricted responses in antiviral effectiveness. To investigate possible reasons for these differences, we characterized the frequency and polyfunctionality of immmunodominant HLA-B*57/B5801- and HLA-Cw*07-restricted CD8+ T cells occurring concurrently in nine study subjects assessing IFN-gamma, TNF-alpha, IL-2, MIP-1beta, ...

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Human CD8+ T Cells from TB Pleurisy Respond to Four Immunodominant Epitopes in Mtb CFP10 Restricted by HLA-B Alleles

CD8(+) T cells are essential for host defense to Mycobacterium tuberculosis (Mtb) infection and identification of CD8(+) T cell epitopes from Mtb is of importance for the development of effective peptide-based diagnostics and vaccines. We previously demonstrated that the secreted 10-KDa culture filtrate protein (CFP10) from Mtb is a potent CD8(+) T cell antigen but the repertoire and dominance ...

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Identification of Mycobacterium tuberculosis CTL Epitopes Restricted by HLA-A*0201 in HHD Mice

CD8+ T cells are thought to play an important role in protective immunity to tuberculosis. The major histocompatibility complex class I subtype HLA-A*0201 is one of the most prevalent class I alleles, with a frequency of over 30% in most populations. HLA-A*0201 transgenic, H-2Db/mouse beta2-microglobulin double-knockout mice (HHD) which express human HLA-A*0201 but no mouse class I, was shown t...

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MHC recognition by hapten-specific HLA-A2-restricted CD8+ CTL.

T cell recognition by peptide-specific alphabeta TCRs involves not only recognition of the peptide, but also recognition of multiple molecular features on the surface of the MHC molecule to which the peptide has been bound. We have previously shown that TCRs that are specific for five different peptides presented by HLA-A2 recognize similar molecular features on the surface of the alpha1 and al...

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ژورنال

عنوان ژورنال: PLoS Pathogens

سال: 2007

ISSN: 1553-7374

DOI: 10.1371/journal.ppat.0030127