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Updated: Nov 29, 2025
A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes
Published on: March 25, 2014
Design of Epitope-Based Peptide Vaccine against Pseudomonas aeruginosa Fructose Bisphosphate Aldolase Protein Using
Mustafa Elhag1, Ruaa Mohamed Alaagib2, Nagla Mohamed Ahmed3
1Faculty of Medicine, University of Seychelles-American Institute of Medicine, Seychelles.
Abstract:
Pseudomonas aeruginosa is a common pathogen that is responsible for serious hospital-acquired infections, ventilator-associated pneumonia, and various sepsis syndromes. Also, it is a multidrug-resistant pathogen recognized for its ubiquity and its intrinsically advanced antibiotic-resistant mechanisms. It usually affects immunocompromised individuals but can also infect immunocompetent individuals. There is no vaccine against it available till now. This study predicts an effective epitope-based vaccine against fructose bisphosphate aldolase (FBA) of Pseudomonas aeruginosa using immunoinformatics tools. The protein sequences were obtained from NCBI, and prediction tests were undertaken to analyze possible epitopes for B and T cells. Three B cell epitopes passed the antigenicity, accessibility, and hydrophilicity tests. Six MHC I epitopes were found to be promising, while four MHC II epitopes were found promising from the result set. Nineteen epitopes were shared between MHC I and II results. For the population coverage, the epitopes covered 95.62% worldwide excluding certain MHC II alleles. We recommend in vivo and in vitro studies to prove its effectiveness.
Insights
This study identified potential vaccine epitopes from Pseudomonas aeruginosa's fructose bisphosphate aldolase. These findings could lead to a new vaccine against this multidrug-resistant hospital pathogen.
Area of Science:
- Bacteriology
- Vaccinology
- Computational Biology
Background:
- Pseudomonas aeruginosa is a major cause of hospital-acquired infections and sepsis.
- It is a multidrug-resistant pathogen with intrinsic resistance mechanisms.
- No vaccine is currently available for Pseudomonas aeruginosa infections.
Purpose of the Study:
- To predict effective epitope-based vaccine candidates against Pseudomonas aeruginosa.
- To utilize immunoinformatics tools for vaccine design.
- To target the fructose bisphosphate aldolase (FBA) protein.
Main Methods:
- Obtained protein sequences from NCBI.
- Performed prediction tests for B and T cell epitopes.
- Applied antigenicity, accessibility, and hydrophilicity assessments.
Main Results:
- Identified three validated B cell epitopes.
- Discovered six promising MHC I and four promising MHC II epitopes.
- Found 19 shared epitopes across MHC I and II, covering 95.62% of the global population.
Conclusions:
- The predicted epitopes show potential for an effective vaccine.
- Further in vivo and in vitro studies are recommended to validate efficacy.
- This immunoinformatics approach offers a promising strategy for Pseudomonas aeruginosa vaccine development.
