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Consequence of Enhanced LC3-trafficking for a Live, Attenuated M. Tuberculosis Vaccine

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Journal Vaccine
Date 2018 Jan 19
PMID 29343411
Citations 8
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Abstract

Development of a new vaccine against tuberculosis is urgently needed. Recent work has demonstrated that two related LC3-associated trafficking pathways, autophagy and LC3-associated phagocytosis (LAP), enhance antigen presentation and might play a role in vaccine efficacy. Mycobacterium tuberculosis inhibits both LC3-trafficking pathways. Moreover, the vaccine strain, BCG, induces even less LC3-trafficking than M. tuberculosis, which may help explain its limited efficacy. To determine whether enhanced LC3-trafficking can improve efficacy of a live, attenuated M. tuberculosis vaccine, we took advantage of our recent finding that the bacterial virulence factor CpsA inhibits LAP. When we deleted cpsA in the mc6206 vaccine strain, it dramatically increased LC3-trafficking. We compared the protective efficacy of the strain lacking cpsA to the parent strain and to BCG in mice challenged with M. tuberculosis. We found that the strain lacking cpsA generated modestly enhanced protection in the spleen, but overall did not outperform BCG.

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References
1.
Grode L, Seiler P, Baumann S, Hess J, Brinkmann V, Eddine A . Increased vaccine efficacy against tuberculosis of recombinant Mycobacterium bovis bacille Calmette-Guérin mutants that secrete listeriolysin. J Clin Invest. 2005; 115(9):2472-9. PMC: 1187936. DOI: 10.1172/JCI24617. View

2.
Romao S, Gasser N, Becker A, Guhl B, Bajagic M, Vanoaica D . Autophagy proteins stabilize pathogen-containing phagosomes for prolonged MHC II antigen processing. J Cell Biol. 2013; 203(5):757-66. PMC: 3857489. DOI: 10.1083/jcb.201308173. View

3.
Martinez J, Malireddi R, Lu Q, Cunha L, Pelletier S, Gingras S . Molecular characterization of LC3-associated phagocytosis reveals distinct roles for Rubicon, NOX2 and autophagy proteins. Nat Cell Biol. 2015; 17(7):893-906. PMC: 4612372. DOI: 10.1038/ncb3192. View

4.
Koster S, Upadhyay S, Chandra P, Papavinasasundaram K, Yang G, Hassan A . is protected from NADPH oxidase and LC3-associated phagocytosis by the LCP protein CpsA. Proc Natl Acad Sci U S A. 2017; 114(41):E8711-E8720. PMC: 5642705. DOI: 10.1073/pnas.1707792114. View

5.
Sambandamurthy V, Derrick S, Hsu T, Chen B, Larsen M, Jalapathy K . Mycobacterium tuberculosis DeltaRD1 DeltapanCD: a safe and limited replicating mutant strain that protects immunocompetent and immunocompromised mice against experimental tuberculosis. Vaccine. 2006; 24(37-39):6309-20. DOI: 10.1016/j.vaccine.2006.05.097. View