Synthetic self-assembling ADDomer platform for highly efficient vaccination by genetically encoded multiepitope...

Area of Science:

• Biotechnology and Nanotechnology
• Vaccinology
• Structural Biology

Background:

• Self-assembling virus-like particles are promising for vaccine and therapeutic development.
• Adenovirus-derived protein scaffolds offer potential for displaying multiple immunogenic epitopes.

Purpose of the Study:

• To engineer a novel self-assembling nanoparticle scaffold, termed ADDomer, for modular display of pathogen epitopes.
• To characterize the ADDomer structure and its interaction with immune system components.
• To develop and evaluate an ADDomer-based vaccine candidate against Chikungunya virus.

Main Methods:

• Engineering of an adenovirus-derived multimeric protein scaffold (ADDomer).
• Cryo-electron microscopy for high-resolution structural analysis.
• Computational analysis of ADDomer interactions with immune components.
• Development of an ADDomer-based Chikungunya vaccine candidate.

Main Results:

• Successful creation of ADDomer, a versatile nanoparticle scaffold.
• Detailed structural elucidation of ADDomer using cryo-electron microscopy and cloud computing.
• Demonstrated potential for plug-and-play display of multiple immunogenic epitopes.
• Development of a promising ADDomer-based Chikungunya vaccine candidate.

Conclusions:

• ADDomer represents a powerful platform for next-generation vaccines and protein therapeutics.
• The scaffold's modularity and self-assembly facilitate efficient epitope display.
• ADDomer-based vaccines show potential for addressing emerging infectious diseases like Chikungunya.