Generation of improved humanized mouse models for human infectious diseases

Area of Science:

• Immunology
• Infectious Diseases
• Animal Models

Background:

• Studying human-specific infectious agents requires effective small animal models.
• Immunodeficient mice with human immune system components are vital research tools.

Purpose of the Study:

• To review advancements in humanized mouse models for studying human-specific infectious agents.
• To highlight opportunities for improving these models for preclinical research.

Main Methods:

• Development of immunodeficient mice with mutations in the IL2 receptor common gamma chain gene (IL2rg(null)).
• Engraftment of hematopoietic stem cells, lymphoid cells, and tissues to create human immune systems.
• Implementation of innovative technologies to enhance human cell engraftment and function.

Main Results:

• Humanized mice successfully engraft human immune cells and tissues, enabling study of human pathogens.
• Next-generation models incorporate host modifications, human growth factors, and improved engraftment protocols.
• These advancements accelerate the development of robust models for disease pathogenesis and therapeutic testing.

Conclusions:

• Humanized mouse models are essential for preclinical studies of human infectious diseases, including HIV-1.
• Ongoing technological innovations are crucial for developing superior models.
• Improved models will advance understanding of disease and facilitate the testing of new vaccines and therapies.