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Mapping the Ethical Issues of Brain Organoid Research and Application
Tsutomu Sawai1,2, Yoshiyuki Hayashi3, Takuya Niikawa4
1Institute for the Advanced Study of Human Biology (WPI-ASHBi), KUIAS Kyoto University.
AJOB Neuroscience
|March 26, 2021
Summary
Human brain organoid research raises ethical concerns, especially after transplantation into animals. This paper clarifies ethical issues and proposes policy directions for responsible development and application of brain organoids.
Area of Science:
- Neuroscience
- Bioethics
Background:
- Human brain organoids, developed since 2008, are 3D neural tissues.
- Transplantation of brain organoids into animal models is increasingly common.
- This raises significant ethical questions regarding their research and application.
Purpose of the Study:
- To identify and categorize ethical issues in brain organoid research and application.
- To propose future ethical considerations and policy frameworks for the field.
Main Methods:
- Review of current brain organoid research status.
- Analysis of previously raised ethical concerns.
- Discussion of anticipated scientific advancements and their ethical implications.
- Examination of ethical issues in in vitro organoids, complex organoid interactions, and research governance.
Main Results:
- Ethical concerns span in vitro development, inter-organoid relationships, and research governance.
- Existing ethical debates are revisited in light of new developments.
- Anticipated scientific progress necessitates proactive ethical evaluation.
Conclusions:
- Urgent need to define ethical boundaries for brain organoid research.
- Proposed research policies and an international framework are essential for responsible innovation.
- Continued dialogue on ethics and policy is crucial for advancing the field.

