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Designing a multi-epitope mRNA vaccine to combat human metapneumovirus based on consensus sequence using reverse

Ajay Kumar Singhmar1, Vinod Goyal2, Santosh Kumari3

  • 1Department of Biotechnology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India.

Journal of Computer-Aided Molecular Design
|December 13, 2025
PubMed

Insights

A novel multi-epitope mRNA vaccine was designed using immunoinformatics to target Human metapneumovirus (HMPV), a leading cause of respiratory illness in children. This vaccine candidate shows promise for preventing HMPV infections.

Area of Science:

  • Vaccinology
  • Immunoinformatics
  • Molecular Biology

Background:

  • Human metapneumovirus (HMPV) is a significant cause of severe respiratory illness in young children, leading to numerous hospital admissions.
  • Currently, there are no licensed vaccines or specific therapies available for HMPV infection, highlighting an urgent need for preventive strategies.

Purpose of the Study:

  • To design and computationally evaluate a novel multi-epitope mRNA vaccine against Human metapneumovirus (HMPV).
  • To identify conserved, non-toxic, and non-allergenic viral epitopes for vaccine development.

Main Methods:

  • Consensus sequences of HMPV surface proteins were derived from 782 genomes.
  • Immunoinformatic approaches were used to identify immunodominant T-cell and B-cell epitopes.
  • Epitopes were combined with adjuvants and linked into a multi-epitope construct for mRNA vaccine design.
  • In silico analyses included physicochemical stability, molecular docking, molecular dynamics, immune simulations, mRNA secondary structure prediction, and cloning into a pVAX1 vector.

Main Results:

  • Identified conserved, antigenic, non-toxic, and non-allergenic epitopes across HMPV clades.
  • The designed multi-epitope mRNA vaccine construct demonstrated stability under physiological conditions.
  • In silico analyses predicted robust humoral and cellular immune responses, stable interactions with immune receptors, and efficient mRNA translation.
  • The final vaccine construct was successfully cloned in silico into the pVAX1 vector.

Conclusions:

  • The developed multi-epitope mRNA vaccine is a promising candidate for preventing Human metapneumovirus (HMPV) infections.
  • Computational validation supports the potential efficacy and stability of this novel vaccine strategy.
Keywords:
Consensus sequenceHuman metapneumovirus (HMPV)Immune simulationMolecular dockingMolecular dynamics (MD) simulationReverse vaccinologymRNA vaccine

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