Rao, M;
Cadieux, N;
Fitzpatrick, M;
Reed, S;
Arsenian, S;
Valentini, D;
Parida, S;
... Maeurer, M; + view all
(2016)
Mycobacterium tuberculosis proteins involved in cell wall lipid biosynthesis improve BCG vaccine efficacy in a murine TB model.
International Journal of Infectious Diseases
, 56
pp. 274-282.
10.1016/j.ijid.2017.01.024.
Preview |
Text
1-s2.0-S1201971217300279-main.pdf - Published Version Download (1MB) | Preview |
Abstract
OBJECTIVES: Advances in tuberculosis (TB) vaccine development are urgently required to enhance global disease management. We evaluated the potential of Mycobacterium tuberculosis (M. tb)-derived protein antigens Rv0447c, Rv2957 and Rv2958c to boost BCG vaccine efficacy in the presence or absence of glucopyranosyl lipid adjuvant formulated in a stable emulsion (GLA-SE) adjuvant. METHODS: Mice received the BCG vaccine, followed by Rv0447c, Rv2957 and Rv2958c protein boosting with or without GLA-SE adjuvant 3 and 6 weeks later. Immune responses were examined at given time points. 9 weeks post vaccination, mice were aerosol-challenged with M. tb, and sacrificed at 6 and 12 weeks to assess bacterial burden. RESULTS: Vaccination of mice with BCG and M. tb proteins in the presence of GLA-SE adjuvant triggered strong IFN-γ and IL-2 production by splenocytes; more TNF-α was produced without GLA-SE addition. Antibody responses to all three antigens did not differ, with or without GLA-SE adjuvant. Protein boosting without GLA-SE adjuvant resulted in vaccinated animals having better control of pulmonary M. tb load at 6 and 12 weeks post aerosol infection, while animals receiving the protein boost with GLA-SE adjuvant exhibited more bacteria in the lungs. CONCLUSIONS: Our data provides evidence for developing Rv2958c, Rv2957 and Rv0447c in a heterologous prime-boost vaccination strategy with BCG.
| Type: | Article |
|---|---|
| Title: | Mycobacterium tuberculosis proteins involved in cell wall lipid biosynthesis improve BCG vaccine efficacy in a murine TB model |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.ijid.2017.01.024 |
| Publisher version: | http://dx.doi.org/10.1016/j.ijid.2017.01.024 |
| Language: | English |
| Additional information: | © 2017 Published by Elsevier Ltd on behalf of International Society for Infectious Diseases. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| Keywords: | Mycobacterium tuberculosis; tuberculosis; vaccines; Bacille Calmette-Guérin; antigens; T cells; antibodies |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Infection and Immunity |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1545113 |
Archive Staff Only
 |
View Item |
