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Updated: Jun 23, 2026

Expression and Purification of Virus-like Particles for Vaccination
Published on: June 2, 2016
Influenza vaccines based on virus-like particles
Sang-Moo Kang1, Jae-Min Song, Fu-Shi Quan
1Department of Microbiology and Immunology and Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322, USA. skang2@emory.edu
Virus-like particles (VLPs) offer a promising new vaccine platform. Influenza VLPs, derived from cell cultures, demonstrate protection against influenza infections in animal models, highlighting their potential for seasonal and pandemic strains.
Area of Science:
- Virology
- Vaccinology
- Immunology
Background:
- Virus-like particles (VLPs) self-assemble from viral structural proteins without genomic material.
- VLPs mimic native virions, making them suitable platforms for vaccine development.
- Influenza VLPs are emerging as cell culture-derived vaccine candidates against influenza.
Purpose of the Study:
- To review the characteristics of influenza VLPs.
- To summarize progress in developing influenza VLPs as vaccine candidates.
- To discuss immune responses induced by influenza VLPs.
Main Methods:
- Describing the assembly of influenza VLPs with lipid bilayers and glycoproteins.
- Summarizing studies on animal vaccination with influenza VLPs.
- Reviewing data on protective immunity induced by VLPs.
Main Results:
- Animals vaccinated with influenza VLPs showed protection against lethal influenza challenge.
- Influenza VLPs serve as a model for enveloped viruses and VLP-induced immunity.
- VLPs containing hemagglutinin (HA) or HA and neuraminidase (NA) conferred protection.
Conclusions:
- Influenza VLPs represent a promising alternative vaccine strategy against influenza.
- VLPs are effective in inducing protective immunity against influenza virus.
- Further research into VLP-based vaccines is warranted for seasonal and pandemic influenza.
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