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Genome Editing in the Yellow Fever Mosquito Aedes aegypti using CRISPR-Cas9
Published on: March 21, 2025
Development of attenuated and inactivated Dengue strains using advanced gene editing tools
Ramesh Thevendran1, Solayappan Maheswaran2,3, Su Yin Lee2
1Department of Biotechnology, Faculty of Applied Science, AIMST University, Semeling, 08100, Bedong, Kedah, Malaysia. rthevendran@yahoo.com.
Molecular Biology Reports
|July 10, 2026
Summary
Researchers are using advanced genetic tools like gene deletion and CRISPR to engineer safer Dengue virus vaccine candidates. This approach aims to create effective Dengue vaccines by precisely modifying the virus.
Area of Science:
- Molecular Biology
- Virology
- Vaccinology
- Genetic Engineering
Background:
- Dengue fever is a significant global health concern, posing a constant burden on healthcare systems worldwide.
- Existing research often overlooks the application of advanced molecular and genetic tools for developing Dengue vaccines.
- There is a critical need for innovative strategies to engineer Dengue virus strains into safe and effective vaccine candidates.
Purpose of the Study:
- To explore recent genetic strategies for attenuating or inactivating Dengue virus strains for vaccine development.
- To detail assays and techniques for validating viral attenuation and inactivation in the context of vaccine safety and immunogenicity.
- To bridge the gap between advanced genetic engineering and public health by understanding Dengue vaccine development challenges.
Main Methods:
- Review of genetic engineering strategies including targeted virulent gene deletions.
- Analysis of CRISPR-Cas inactivation techniques for Dengue virus attenuation.
- Exploration of viral codon deoptimization as a method for inactivating Dengue virus.
- Discussion of validation assays for assessing viral attenuation and inactivation.
Main Results:
- Identified and discussed key genetic strategies (gene deletion, CRISPR-Cas, codon deoptimization) for Dengue virus attenuation.
- Highlighted the critical balance between vaccine safety and immunogenicity required for Dengue vaccine candidates.
- Reviewed methodologies for validating the efficacy and safety of genetically engineered Dengue virus strains.
Conclusions:
- Modern genetic tools offer promising avenues for developing next-generation Dengue vaccines.
- Precise genetic manipulation of Dengue virus is crucial for creating safe and immunogenic vaccine candidates.
- Addressing biological challenges and safety concerns is paramount for successful Dengue vaccine development.
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