Supplementation with RD antigens enhances the protective efficacy of BCG in tuberculous mice

Supplementation with RD antigens enhances the protective efficacy of BCG in tuberculous mice

Different combinations of ESAT-6, CFP-10, CFP-21, MPT-64, encoded by RD1 and RD2 of Mycobacterium tuberculosis were evaluated on the basis of antigenicity in PPD positive TB contacts and immunogenicity in C57BL/6J mice immunized with the combination of all four RD antigens. The peripheral blood mono...

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Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 125(2007), 2 vom: 15. Nov., Seite 173-83
1. Verfasser: Kalra, Mamta (VerfasserIn)
Weitere Verfasser: Grover, Ajay, Mehta, Neena, Singh, Jaspreet, Kaur, Jaspreet, Sable, Suraj B, Behera, Digambar, Sharma, Pawan, Verma, Indu, Khuller, G K
Format: Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Antigens, Bacterial BCG Vaccine Bacterial Proteins CFP-10 protein, Mycobacterium tuberculosis CFP21 protein, Mycobacterium tuberculosis ESAT-6 protein, Mycobacterium tuberculosis Interleukin-12 Subunit p40 mehr... MPT64 protein, Mycobacterium tuberculosis Interleukin-4 207137-56-2 Interferon-gamma 82115-62-6
Beschreibung
Zusammenfassung:Different combinations of ESAT-6, CFP-10, CFP-21, MPT-64, encoded by RD1 and RD2 of Mycobacterium tuberculosis were evaluated on the basis of antigenicity in PPD positive TB contacts and immunogenicity in C57BL/6J mice immunized with the combination of all four RD antigens. The peripheral blood mononuclear cells of TB contacts showed maximum recognition in response to the combination of ESAT-6+MPT-64 in terms of predominant lymphoproliferation, IFN-gamma levels and the number of responders. On the contrary, the combination of ESAT-6+CFP-21+MPT-64 was found to be most immunogenic based on both T-cell and antibody responses in immunized mice. Prophylactic potential of the selected combinations was assessed as supplementation vaccines to BCG against intravenous challenge with M. tuberculosis in mice. BCG supplementation with the selected combinations resulted in significantly greater protection as compared to BCG alone against experimental tuberculosis and thus appears to be a promising approach to enhance the protective efficacy of the existing vaccine
Beschreibung:Date Completed 18.12.2007
Date Revised 21.11.2008
published: Print-Electronic
Citation Status MEDLINE
ISSN:1521-7035