Ex vivo challenge models for infectious diseases

Area of Science:

• Infectious disease research
• Immunology
• Pathogenesis

Background:

• Traditional cell culture and animal models have limitations in reflecting natural human infections.
• The COVID-19 pandemic underscored the need for advanced laboratory models to study host-pathogen interactions.
• Ex vivo tissue challenge models are emerging as a promising alternative to traditional methods.

Purpose of the Study:

• To review recent advancements in ex vivo tissue challenge models for infectious diseases.
• To highlight the utility of these models in studying host-pathogen interactions and immune responses.
• To discuss the potential of ex vivo models in evaluating preventive measures and therapeutic agents.

Main Methods:

• Summarizing recent developments in ex vivo tissue challenge models for pathogens including COVID-19 and HIV-1.
• Focusing on the application of these models in understanding host-pathogen dynamics and immune modulation.
• Evaluating the advantages and limitations of ex vivo models compared to traditional approaches.

Main Results:

• Ex vivo models provide a closer approximation of human disease pathology and immune responses than animal models.
• These models are valuable for screening therapies and triaging vaccine candidates.
• Organoid technology represents a further advancement in ex vivo modeling.

Conclusions:

• Ex vivo tissue challenge models offer significant advantages over traditional methods for studying infectious diseases.
• These models enhance knowledge of host-pathogen interactions and immune responses.
• Ex vivo models hold immense potential for advancing infectious disease research and therapeutic development.