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Published on: February 23, 2014
Streptococcus pneumoniae protein vaccine candidates: properties, activities and animal studies
1Department of Microbiology, College of Medicine, Howard University, Washington, DC 20059, USA. stai@howard.edu
Insights
Developing protein-based vaccines against Streptococcus pneumoniae is crucial due to rising drug resistance. This review explores protein candidates to broaden protection beyond current polysaccharide vaccines.
Area of Science:
- Microbiology
- Immunology
- Vaccinology
Background:
- Streptococcus pneumoniae causes pneumonia, bacteremia, and meningitis.
- Increasing multi-drug resistant strains necessitate new preventative strategies.
- Current polysaccharide vaccines offer limited serotype-specific protection.
Purpose of the Study:
- To review protein candidates for a broader pneumococcal vaccine.
- To assess their biochemical properties and immunogenicity.
- To discuss future development of protein-based vaccines.
Main Methods:
- Literature review of scientific communications.
- Analysis of biochemical properties of protein candidates.
- Summary of animal immunization study results.
Main Results:
- Pneumococcal proteins offer a viable alternative to polysaccharide vaccines.
- Several protein candidates show promise for broader immune response.
- Animal studies indicate immunogenic potential of these proteins.
Conclusions:
- Protein-based vaccines represent a promising approach to combat drug-resistant Streptococcus pneumoniae.
- Further research and development are needed for effective protein-based pneumococcal vaccines.
Abstract:
Streptococcus pneumoniae is a causative agent for community acquired pneumonia, bacteremia, acute otitis media, and meningitis. Recent emergence of multi-drug resistant clinical isolates prompts the need of effective vaccine for the prevention of disease. The licensed polysaccharide-based pneumococcal vaccines only elicit protective antibodies against the infection of serotypes that are included in the vaccine. To broaden the protection, the use of pneumococcal proteins will be a feasible and preferable alternative. This communication provides a review on the biochemical properties of these protein candidates, their immunization results in animal studies, and perspectives on the development of protein-based pneumococcal vaccine.
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