T cell reactivity against mycolyl transferase antigen 85 of M. tuberculosis in HIV-TB coinfected subjects and in AIDS patients suffering from tuberculosis and nontuberculous mycobacterial infections.
The mycolyl transferase antigen 85 complex is a major secreted protein family from mycobacterial culture filtrate, demonstrating powerful T cell stimulatory properties in most HIV-negative, tuberculin-positive volunteers with latent M.tuberculosis infection and only weak responses in HIV-negative tuberculosis patients. Here, we have analyzed T cell reactivity against PPD and Ag85 in HIV-infected individuals, without or with clinical symptoms of tuberculosis, and in AIDS patients with disease caused by nontuberculous mycobacteria. Whereas responses to PPD were not significantly different in HIV... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2011 |
Schlagwörter: | Sciences bio-médicales et agricoles / AIDS-Related Opportunistic Infections -- immunology -- microbiology / Acyltransferases -- immunology / Antigens / Bacterial -- immunology / Belgium / French Guiana / HIV -- physiology / HIV Infections -- complications -- immunology -- virology / Humans / Immunologic Memory / Interferon-gamma -- metabolism / Lymphocyte Activation -- immunology / Mycobacterium Infections -- complications -- immunology / Mycobacterium tuberculosis -- immunology / T-Lymphocytes -- immunology / Tuberculin Test / Tuberculosis -- complications -- immunology -- microbiology / Tuberculosis / Pulmonary -- complications -- immunology |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-28538311 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/124862 |
The mycolyl transferase antigen 85 complex is a major secreted protein family from mycobacterial culture filtrate, demonstrating powerful T cell stimulatory properties in most HIV-negative, tuberculin-positive volunteers with latent M.tuberculosis infection and only weak responses in HIV-negative tuberculosis patients. Here, we have analyzed T cell reactivity against PPD and Ag85 in HIV-infected individuals, without or with clinical symptoms of tuberculosis, and in AIDS patients with disease caused by nontuberculous mycobacteria. Whereas responses to PPD were not significantly different in HIV-negative and HIV-positive tuberculin-positive volunteers, responses to Ag85 were significantly decreased in the HIV-positive (CDC-A and CDC-B) group. Tuberculosis patients demonstrated low T cell reactivity against Ag85, irrespective of HIV infection, and finally AIDS patients suffering from NTM infections were completely nonreactive to Ag85. A one-year follow-up of twelve HIV-positive tuberculin-positive individuals indicated a decreased reactivity against Ag85 in patients developing clinical tuberculosis, highlighting the protective potential of this antigen. ; Journal Article ; Research Support, Non-U.S. Gov't ; SCOPUS: ar.j ; info:eu-repo/semantics/published