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Research Progress Towards Poliovirus Virus-like Particle Vaccines: A Review.

Taoli Han1,2,3,4, Jinbo Xiao1,2,3, Shiyao Zhang4

  • 1National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.

Vaccines
|March 27, 2026
PubMed
Summary

Virus-like particle (VLP) vaccines offer a safer alternative to traditional poliovirus vaccines, addressing issues like virus reversion. Research is advancing VLP technology for future poliovirus eradication efforts.

Keywords:
polio eradicationpoliovirusvaccinevirus-like particles (VLPs)

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Area of Science:

  • Virology
  • Vaccinology
  • Structural Biology

Background:

  • Poliovirus (PV) caused severe paralytic diseases, but vaccination reduced incidence, aiding eradication.
  • Traditional oral poliovirus vaccines (OPVs) and inactivated poliovirus vaccines (IPVs) face challenges like vaccine-derived virus reversion and production biosafety.
  • Virus-like particle (VLP) vaccines, non-infectious mimics of viruses, present enhanced safety and immunogenicity for next-generation poliovirus vaccines.

Purpose of the Study:

  • To review progress in poliovirus VLP vaccine research.
  • To discuss expression systems, assembly strategies, and immunogenicity evaluations.
  • To explore future directions for poliovirus VLP vaccine development.

Main Methods:

  • Systematic review of current poliovirus VLP vaccine research.
  • Analysis of diverse VLP expression systems and stabilization strategies.
  • Evaluation of VLP antigenicity and immunogenicity, including cryo-electron microscopy studies.

Main Results:

  • Poliovirus VLP vaccines are being developed using various expression systems.
  • Strategies for VLP assembly, stabilization, antigenicity, and immunogenicity are under investigation.
  • Cryo-electron microscopy provides insights into VLP structure.

Conclusions:

  • Poliovirus VLP vaccines offer a promising, safer alternative for future vaccination strategies.
  • Further research integrating genetic engineering, structural biology, and immunology is needed.
  • VLP technology can support the global goal of a poliovirus-free world.