Molecular Engineering of Virus Tropism.

Area of Science:

• Biotechnology
• Molecular Biology
• Virology

Background:

• Engineered viral vectors are crucial for gene therapy, vaccine development, and research tools.
• Viral tropism, or host specificity, is critical for targeted delivery and safety.
• Modifying tropism minimizes off-target effects and enhances transduction efficiency.

Purpose of the Study:

• To review strategies for modifying recombinant viral tropism.
• To explore advancements in targeting both enveloped and non-enveloped viruses.
• To discuss methods for engineering viral tropism and future directions.

Main Methods:

• Altering viral surface proteins to modify tropism.
• Reviewing advancements in targeting adenoviruses, adeno-associated viruses, retro/lentiviruses, Rabies, Vesicular Stomatitis Virus, and Herpesvirus.
• Discussing rational design, directed evolution, in silico, and machine learning methods.

Main Results:

• Current strategies enable precise targeting of specific cell types using modified viral vectors.
• Novel AAV variants with desired tropism can be generated through advanced engineering approaches.
• Chimeric envelope proteins facilitate pseudotyping for enhanced enveloped virus targeting.

Conclusions:

• Engineering viral tropism is advancing gene therapy, vaccine development, and biochemical research.
• Continued research in viral tropism modification promises improved safety and efficacy.
• Addressing challenges in viral tropism engineering will unlock new therapeutic potentials.