A novel design of multi-epitope based vaccine against Escherichia coli

Document Type : Original Article

Authors

1 Department of Science Laboratory Technology, Microbiology option, The Oke- Ogun Polytechnic, Saki Oyo State . Department of Pure & Applied Biology, Ogbomoso Ladoke Akintola University of Technology. Cellular Parasitology Unit, Department of Zoology, University of Ibadan, Nigeria.

2 Department of Science Laboratory Technology, Microbiology option, The Oke- Ogun Polytechnic, Saki Oyo State Nigeria

3 Department of Microbiology and Botany, University of Ibadan, Ibadan, Nigeria

4 Department of Science Laboratory Technology, Microbiology option, The Oke- Ogun Polytechnic, Saki Oyo State. Department of Zoology, Parasitology Unit, University of Ibadan, Nigeria

Abstract

Background: Multi-valent based vaccines have advantage over conventional vaccines because of its multi-faceted action targeted at antigen; thereby raising hope of a more sustained actions against allergens. Escherichia coli (E. coli) is a bacterium that is commonly found in the gut of humans and warm-blooded animals. An increasing number of outbreaks are associated with the consumption of fruits and vegetables (including sprouts, spinach, lettuce, coleslaw, and salad) thereby contamination may be due to contact with faeces from domestic or wild animals at some stages during cultivation or handling. Due to the reported increase in resistance to antibiotics used for Escherichia coli control; an effective vaccine is a would-be alternative of proven interest. Hence, a need for a rational, strategic, and efficient vaccine candidate against E.coli is of paramount necessity by the use of the most current bioinformatics tools to achieve this task. Method: In this study, immunoinformatics tools mined from diverse molecular databases were used  for a novel putative epitope based oral vaccine against E.coli. The prospective vaccine proteins were carefully screened and validated to achieve a high thorough-put three-dimensional protein structure. The eventual propsective vaccine candidate proteins was evaluated for its non-allergenicity, antigenicity, solubility, appropriate molecular weight testing and isoelectric point evaluation. Conclusion: The resultant vaccine candidate could serve as a promising anti-E.coli vaccine candidate. Immunoinformatics is a new field over pharmaco-therapeutics; this newest technology should continue to be a rescue from age-long traditional approach in vaccine developments.

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