Evidence map›Paper›PMID 24370705›Full record

ReviewVaccine2014

The delicate balance in genetically engineering live vaccines.

James E Galen, Roy Curtiss

Abstract readReview
In one paragraph

Review in Vaccine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 105 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Article
  4. Recombinant AttenuatedBiomolecules · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. A Purely Biomanufactured System for Delivering Nanoparticles and STING Agonists.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  10. Roles of SPI-2 T3SS effectors in virulence ofFrontiers in veterinary science · 2025
    Article
  11. Genetic engineering ofEcoSal Plus · 2024
    Review
  12. Review
  13. Mutation inVeterinary sciences · 2024
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

James E GalenCenter for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Division of Geographic Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA. Electronic address: jgalen@medicine.umaryland.edu.
Roy CurtissCenter for Infectious Diseases and Vaccinology, The Biodesign Institute and School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA.
Arizona State University · USUniversity of Maryland, Baltimore · US

Funding

Live Attenuated Bacterial Vaccines Against PlaqueU01AI077911 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI GALEN, JAMES E · 2008 to 2011
$3.4M
Salmonella Vaccines Against Bacterial EnteropathogensR01AI060557 · NIAID · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI CURTISS III, ROY · 2010 to 2014
$2.2M
Mucosal live vector vaccine against recurrent Clostridium difficile infectionsR01AI095309 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI GALEN, JAMES E · 2013 to 2017
$1.9M
NIAID NIH HHS R01 AI060557NIAID NIH HHS R01 AI095309NIAID NIH HHS U01 AI077911
6 · The paper itself

Abstract

Contemporary vaccine development relies less on empirical methods of vaccine construction, and now employs a powerful array of precise engineering strategies to construct immunogenic live vaccines. In this review, we will survey various engineering techniques used to create attenuated vaccines, with an emphasis on recent advances and insights. We will further explore the adaptation of attenuated strains to create multivalent vaccine platforms for immunization against multiple unrelated pathogens. These carrier vaccines are engineered to deliver sufficient levels of protective antigens to appropriate lymphoid inductive sites to elicit both carrier-specific and foreign antigen-specific immunity. Although many of these technologies were originally developed for use in Salmonella vaccines, application of the essential logic of these approaches will be extended to development of other enteric vaccines where possible. A central theme driving our discussion will stress that the ultimate success of an engineered vaccine rests on achieving the proper balance between attenuation and immunogenicity. Achieving this balance will avoid over-activation of inflammatory responses, which results in unacceptable reactogenicity, but will retain sufficient metabolic fitness to enable the live vaccine to reach deep tissue inductive sites and trigger protective immunity. The breadth of examples presented herein will clearly demonstrate that genetic engineering offers the potential for rapidly propelling vaccine development forward into novel applications and therapies which will significantly expand the role of vaccines in public health.

Indexed as

Drug DiscoveryGenetic EngineeringHumansSalmonella VaccinesTechnology, PharmaceuticalVaccines, AttenuatedVaccines, SyntheticSalmonella VaccinesVaccines, AttenuatedVaccines, SyntheticCarrierForeign antigenMetabolic burdenOver-attenuationSalmonellaVaccine

Identifiers

PMID24370705
PMCPMC4069233
OpenAlexW2019252587

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.