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Design of Live Attenuated Bacterial Vaccines Based on D-glutamate Auxotrophy

Overview
Journal Nat Commun
Specialty Biology
Date 2017 May 27
PMID 28548079
Citations 33
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Abstract

Vaccine development is a priority for global health due to the growing multidrug resistance in bacteria. D-glutamate synthesis is essential for bacterial cell wall formation. Here we present a strategy for generating effective bacterial whole-cell vaccines auxotrophic for D-glutamate. We apply this strategy to generate D-glutamate auxotrophic vaccines for three major pathogens, Acinetobacter baumannii, Pseudomonas aeruginosa and Staphylococcus aureus. These bacterial vaccines show virulence attenuation and self-limited growth in mice, and elicit functional and cross-reactive antibodies, and cellular immunity. These responses correlate with protection against acute lethal infection with other strains of the same species, including multidrug resistant, virulent and/or high-risk clones such as A. baumannii AbH12O-A2 and Ab307-0294, P. aeruginosa PA14, and community-acquired methicillin-resistant S. aureus USA300LAC. This approach can potentially be applied for the development of live-attenuated vaccines for virtually any other bacterial pathogens, and does not require the identification of virulence determinants, which are often pathogen-specific.

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References
1.
Proctor R . Recent developments for Staphylococcus aureus vaccines: clinical and basic science challenges. Eur Cell Mater. 2015; 30:315-26. DOI: 10.22203/ecm.v030a22. View

2.
. A Call for Greater Consideration for the Role of Vaccines in National Strategies to Combat Antibiotic-Resistant Bacteria: Recommendations from the National Vaccine Advisory Committee: Approved by the National Vaccine Advisory Committee on June 10,.... Public Health Rep. 2016; 131(1):11-6. PMC: 4716466. View

3.
Missiakas D, Schneewind O . Staphylococcus aureus vaccines: Deviating from the carol. J Exp Med. 2016; 213(9):1645-53. PMC: 4995089. DOI: 10.1084/jem.20160569. View

4.
Fisher S . Glutamate racemase as a target for drug discovery. Microb Biotechnol. 2011; 1(5):345-60. PMC: 3815242. DOI: 10.1111/j.1751-7915.2008.00031.x. View

5.
Sharma A, Krause A, Worgall S . Recent developments for Pseudomonas vaccines. Hum Vaccin. 2011; 7(10):999-1011. PMC: 3360073. DOI: 10.4161/hv.7.10.16369. View