ArticleInfection and immunity2013
A heterologous prime-boost vaccination strategy comprising the Francisella tularensis live vaccine strain capB mutant and recombinant attenuated Listeria monocytogenes expressing F. tularensis IglC induces potent protective immunity in mice against virulent F. tularensis aerosol challenge.
Article in Infection and immunity, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 30 citations in OpenAlex.
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- Aim2 and Nlrp3 Are Dispensable for Vaccine-Induced Immunity against Francisella tularensis Live Vaccine Strain.Infection and immunity · 2021Article
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- Single vector platform vaccine protects against lethal respiratory challenge with Tier 1 select agents of anthrax, plague, and tularemia.Scientific reports · 2018Article
- An Improved Tobacco Mosaic Virus (TMV)-Conjugated Multiantigen Subunit Vaccine Against Respiratory Tularemia.Frontiers in microbiology · 2018Article
- Live Attenuated Tularemia Vaccines for Protection Against Respiratory Challenge With VirulentFrontiers in cellular and infection microbiology · 2018Review
- Protection induced by a Francisella tularensis subunit vaccine delivered by glucan particles.PloS one · 2018Article
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- Tularemia vaccines.Folia microbiologica · 2016Review
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- Genetic engineering of Francisella tularensis LVS for use as a novel live vaccine platform against Pseudomonas aeruginosa infections.Bioengineered · 2015Article
- Development of a Multivalent Subunit Vaccine against Tularemia Using Tobacco Mosaic Virus (TMV) Based Delivery System.PloS one · 2015Article
- An Overview of Challenges Limiting the Design of Protective Mucosal Vaccines for Finfish.Frontiers in immunology · 2015Review
- rBCG30-induced immunity and cross-protection against Mycobacterium leprae challenge are enhanced by boosting with the Mycobacterium tuberculosis 30-kilodalton antigen 85B.Infection and immunity · 2014Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
Francisella tularensis, the causative agent of tularemia, is a category A bioterrorism agent. A vaccine that is safer and more effective than the currently available unlicensed F. tularensis live vaccine strain (LVS) is needed to protect against intentional release of aerosolized F. tularensis, the most dangerous type of exposure. In this study, we employed a heterologous prime-boost vaccination strategy comprising intradermally administered LVS ΔcapB (highly attenuated capB-deficient LVS mutant) as the primer vaccine and rLm/iglC (recombinant attenuated Listeria monocytogenes expressing the F. tularensis immunoprotective antigen IglC) as the booster vaccine. Boosting LVS ΔcapB-primed mice with rLm/iglC significantly enhanced T cell immunity; their splenic T cells secreted significantly more gamma interferon (IFN-γ) and had significantly more cytokine (IFN-γ and/or tumor necrosis factor [TNF] and/or interleukin-2 [IL-2])-producing CD4(+) and CD8(+) T cells upon in vitro IglC stimulation. Importantly, mice primed with LVS ΔcapB or rLVS ΔcapB/IglC, boosted with rLm/iglC, and subsequently challenged with 10 50% lethal doses (LD50) of aerosolized highly virulent F. tularensis Schu S4 had a significantly higher survival rate and mean survival time than mice immunized with only LVS ΔcapB (P < 0.0001); moreover, compared with mice immunized once with LVS, primed-boosted mice had a higher survival rate (75% versus 62.5%) and mean survival time during the first 21 days postchallenge (19 and 20 days for mice boosted after being primed with LVS ΔcapB and rLVS ΔcapB/IglC, respectively, versus 17 days for mice immunized with LVS) and maintained their weight significantly better (P < 0.01). Thus, the LVS ΔcapB-rLm/iglC prime-boost vaccination strategy holds substantial promise for a vaccine that is safer and at least as potent as LVS.
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