Experimental models to study development and function of the human immune system in vivo

Area of Science:

• Immunology
• Developmental Biology
• Transplantation Biology

Background:

• Studying human immune system development in vivo is challenging due to experimental, practical, and ethical limitations.
• Animal models, particularly mouse models, have been developed to study human immune system development.
• Early mouse models faced limitations due to xenograft transplantation barriers.

Purpose of the Study:

• To review the advancements in mouse models of human immune system development over the last 20 years.
• To highlight improvements in studying human T cell development in the murine thymus.
• To discuss future directions for enhancing these experimental models.

Main Methods:

• Review of successive mouse models developed over two decades.
• Analysis of genetic screening of mouse strains.
• Evaluation of combinations of genetic deficiencies in mouse models.

Main Results:

• Significant advances have been made in mouse models for human immune system development.
• Screening of mouse strains and use of genetic deficiencies have overcome previous limitations.
• Substantial progress has been achieved in studying human T cell development within the murine thymus.

Conclusions:

• Mouse models have become indispensable tools for studying human immune system development.
• Continued refinement of mouse models through genetic strategies promises further breakthroughs.
• Future research should focus on addressing remaining challenges for comprehensive human immune system study in mice.