| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 2404222 | Vaccine | 2009 | 8 Pages |
Abstract
Owing to its highly immunodominant nature and ability to induce long-lived memory immunity, ESAT-6, a prominent antigen of Mycobacterium tuberculosis, has been employed in several approaches to develop tuberculosis vaccines. Here, for the first time, we combined ESAT-6 based recombinant BCG (rBCG) and DNA vaccine (DNAE6) in a prime boost approach. Interestingly, in spite of inducing an enhanced antigen specific IFN-γ response in mice, a DNAE6 booster completely obliterated the protection imparted by rBCG against tuberculosis in guinea pigs. Analysis of immunopathology and cytokine responses suggests involvement of an exaggerated immunity behind the lack of protection imparted by this regimen.
Keywords
Related Topics
Life Sciences
Immunology and Microbiology
Immunology
Authors
Bappaditya Dey, Ruchi Jain, Aparna Khera, Vivek Rao, Neeraj Dhar, Umesh D. Gupta, V.M. Katoch, V.D. Ramanathan, Anil K. Tyagi,