Human-Monkey Chimeras for Modeling Human Disease: Opportunities and Challenges.

Area of Science:

• Biomedical Research
• Stem Cell Biology
• Neuroscience

Background:

• Developing accurate animal models for human diseases remains a significant challenge in biomedical research.
• Recent advancements in pluripotent stem (PS) cell identification and chimera research offer new possibilities for creating interspecies models.
• Current primate models for neurological and psychiatric diseases have limitations.

Purpose of the Study:

• To explore the potential of creating human-primate chimeras by transferring human stem cells into primate hosts.
• To assess whether human-primate chimeras could overcome the limitations of existing monkey models for human diseases.
• To examine the urgent ethical and political considerations surrounding the creation of human-monkey chimeras.

Main Methods:

• Investigating the feasibility of interspecies chimera generation using human pluripotent stem cells.
• Analyzing blastocyst complementation experiments in the context of recent technological advances.
• Reviewing ethical guidelines and legal regulations regarding human stem cell research in non-human primates.

Main Results:

• The creation of human-primate chimeras is becoming increasingly feasible due to advances in PS cell technology.
• Such chimeras hold the potential to significantly improve the modeling of human neurological and psychiatric diseases.
• The prospect of human-monkey chimeras necessitates a thorough ethical and political discussion.

Conclusions:

• Human-primate chimeras represent a promising avenue for advancing disease modeling but require careful ethical consideration.
• The scientific community must address the ethical implications of using primates in invasive research, particularly with human stem cells.
• Further dialogue is needed to navigate the complex ethical, political, and scientific landscape of interspecies chimera research.