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Updated: Nov 21, 2025
Simplified Reverse Genetics Method to Recover Recombinant Rotaviruses Expressing Reporter Proteins
Published on: April 17, 2020
Rotavirus reverse genetics systems: Development and application
Yuta Kanai1, Takeshi Kobayashi1
1Department of Virology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Insights
Rotaviruses (RVs) cause severe gastroenteritis in children. New reverse genetics systems enable the creation of recombinant rotaviruses, advancing research and vaccine development for this persistent global health threat.
Area of Science:
- Virology
- Molecular Biology
- Vaccinology
Background:
- Rotaviruses (RVs) are a leading cause of acute gastroenteritis in young children globally.
- Despite existing vaccines, rotaviruses still cause over 200,000 deaths annually.
- RVs are non-enveloped viruses with a double-stranded RNA genome belonging to the Reoviridae family.
Purpose of the Study:
- To provide technical insights into current helper virus-free reverse genetics systems for rotaviruses.
- To review basic and applied research utilizing these advanced reverse genetics systems.
- To highlight the impact of reverse genetics on rotavirus research and potential applications.
Main Methods:
- Review of scientific literature on rotavirus reverse genetics systems.
- Analysis of studies employing helper virus-free reverse genetics for rotavirus research.
- Synthesis of technical details and findings from generated recombinant rotaviruses.
Main Results:
- The establishment of helper virus-free reverse genetics systems for rotaviruses since 2017 has been robust.
- Numerous studies have successfully generated recombinant rotaviruses using these systems.
- These systems facilitate detailed investigation into rotavirus biology and pathogenesis.
Conclusions:
- Reverse genetics systems have significantly advanced rotavirus research capabilities.
- These tools are crucial for understanding rotavirus and developing improved vaccines and therapeutics.
- Continued application of reverse genetics promises further breakthroughs in combating rotavirus infections.
Abstract:
Rotaviruses (RVs) cause acute gastroenteritis in infants and young children. Since 2006, live-attenuated vaccines have reduced the number of RV-associated deaths; however, RV is still responsible for an estimated 228,047 annual deaths worldwide. RV, a member of the family Reoviridae, has an 11-segmented double-stranded RNA genome contained within a non-enveloped, triple layered virus particle. In 2017, a long-awaited helper virus-free reverse genetics system for RV was established. Since then, numerous studies have reported the generation of recombinant RVs; these studies verify the robustness of reverse genetics systems. This review provides technical insight into current reverse genetics systems for RVs, as well as discussing basic and applied studies that have used these systems.
