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An improved system to generate recombinant canine distemper virus
Huai Cheng1, Hewei Zhang2,3, Huayun Zhang1
1Wenzhou Key Laboratory for Virology and Immunology, Institute of Virology, Wenzhou University, Wenzhou, China.
BMC Veterinary Research
|April 27, 2024
Summary
Researchers improved the canine distemper virus (CDV) reverse genetics system using a novel plasmid. This enhanced system offers greater convenience and higher rescue efficiency for generating recombinant CDV.
Area of Science:
- Virology
- Molecular Biology
Background:
- Canine distemper virus (CDV) poses a significant threat due to its expanding host range and cross-species transmission capabilities.
- Reverse genetics systems are crucial for in vitro generation of recombinant viruses from genomic cDNA clones.
Purpose of the Study:
- To enhance the existing reverse genetics system for canine distemper virus (CDV).
- To develop a more efficient and convenient method for generating recombinant CDV.
Main Methods:
- A novel plasmid was constructed for co-expression of CDV N, P, and L genes.
- This plasmid was co-transfected with a full-length CDV cDNA clone into Vero cells.
Main Results:
- The new system demonstrated increased convenience and ease of transfection ratio control.
- A significantly higher rescue efficiency for recombinant CDV was achieved compared to conventional methods.
Conclusions:
- The improved reverse genetics system reduces the number of required transfection plasmids.
- This method enhances CDV rescue efficiency and offers a valuable reference for other morbilliviruses.
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