DNA vaccines against leptospirosis: A literature review.

Vaccine

Programa de Pós-Graduação em Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil; Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas, RS, Brazil. Electronic address:

Published: October 2017

AI Article Synopsis

  • Leptospirosis, caused by pathogenic Leptospira species, has existing vaccines that are not very effective and have multiple drawbacks like side effects and poor immunity.
  • The development of a better vaccine is critical due to the disease's global impact, and genetic immunization offers a promising alternative to traditional vaccines.
  • Recent advancements in DNA vaccine strategies, including improved plasmid vectors and delivery methods, show potential in enhancing vaccine efficacy against leptospirosis.

Article Abstract

Leptospirosis is an infectious disease caused by pathogenic Leptospira species. The vaccines that are currently available for leptospirosis are composed of whole-cell preparations and suffer from limitations such as low efficacy, multiple side-effects, poor immunological memory and lack of cross-protection against different serovars of Leptospira spp. In light of the global prevalence of this disease, the development of a more effective vaccine against leptospirosis is of paramount importance. Genetic immunization is a promising alternative to conventional vaccine development. In the last 25years, several novel strategies have been developed for increasing the efficacy of DNA vaccines. Examples of such strategies include the introduction of novel plasmid vectors, adjuvants, alternate delivery routes, and prime-boost regimens. Herein we discuss the latest and most promising advances that have been made in developing DNA vaccines against leptospirosis. We also deliberate over the future directions that must be undertaken in order to improve results in this field.

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Source
http://dx.doi.org/10.1016/j.vaccine.2017.08.067DOI Listing

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