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Related Experiment Video

Updated: Jan 22, 2026

Detection of Neutralization-sensitive Epitopes in Antigens Displayed on Virus-Like Particle VLP-Based Vaccines Using a Capture Assay
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High-Throughput Production of Influenza Virus-Like Particle (VLP) Array by Using VLP-factory™, a MultiBac Baculoviral

Duygu Sari-Ak1, Shervin Bahrami2, Magdalena J Laska3

  • 1The European Molecular Biology Laboratory (EMBL), Grenoble Cedex 9, France.

Methods in Molecular Biology (Clifton, N.J.)
|July 4, 2019
PubMed
Summary

This study introduces a novel MultiBac-based VLP-factory for producing influenza virus-like particles (VLPs). This system enables the creation of VLPs with specific mutations to study their impact on immune responses.

Keywords:
Baculovirus expression vector system (BEVS)Cre recombinaseCre-LoxP fusionHemagglutinin (HA)InfluenzaMultiBacSmall-scale productionVirus-like particle (VLP)

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Area of Science:

  • Biotechnology
  • Virology
  • Protein Expression

Background:

  • Baculovirus expression vector systems (BEVS) are effective for producing complex protein biologics.
  • Virus-like particles (VLPs) are safe vaccine alternatives, mimicking viruses without genetic material.
  • The MultiBac system offers a customizable platform for advanced protein production.

Purpose of the Study:

  • To develop a MultiBac-based VLP-factory for influenza VLP production.
  • To generate influenza VLPs with specific mutations in hemagglutinin (HA).
  • To investigate how HA mutations modulate the immune response elicited by VLPs.

Main Methods:

  • Utilized the MultiBac system for baculovirus-based protein expression in insect cells.
  • Engineered a VLP-factory based on the influenza M1 capsid protein.
  • Produced an array of influenza VLPs with functional HA mutations in a parallelized manner.

Main Results:

  • Successfully created a MultiBac-based VLP-factory.
  • Generated diverse influenza VLPs containing specific HA mutations.
  • Demonstrated the system's capability for parallelized VLP production.

Conclusions:

  • The MultiBac-based VLP-factory is a powerful tool for producing influenza VLPs.
  • This platform facilitates the study of HA mutations and their effect on VLP-induced immune responses.
  • The system holds potential for vaccine development and therapeutic protein manufacturing.