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Updated: Jun 22, 2025

Xenotransplantation of Human Stem Cells into the Chicken Embryo
Published on: July 11, 2010
Xenotransplantation-reflections on the bioethics
1School of Population Medicine and Public Health Peking Union Medical College Dongcheng-qu China.
Insights
Xenotransplantation, using animal organs for human transplants, offers a potential solution to the global organ shortage. China must address scientific and ethical challenges for clinical xenotransplantation trials.
Area of Science:
- Transplantation Medicine
- Bioethics
- Medical Technology
Background:
- China faces a critical shortage of human organs for transplantation, with only 23.90% of patients receiving transplants in 2019.
- This scarcity significantly restricts the application of organ transplantation technology in China.
- There is a growing societal and medical imperative to address the demand-supply gap in organ transplantation.
Purpose of the Study:
- To explore xenotransplantation as a viable solution for the human organ shortage.
- To examine the scientific and ethical challenges associated with animal-to-human organ transplantation.
- To inform China's approach to xenotransplantation clinical trials.
Main Methods:
- Review of international efforts in xenotransplantation research.
- Analysis of scientific and ethical considerations in using animal organs for human recipients.
- Examination of recent clinical trials in xenotransplantation.
Main Results:
- The first clinical trial of a transgenic pig heart transplant into a human recipient occurred in January 2021.
- This trial has generated significant interest and enthusiasm in the field of xenotransplantation.
- Xenotransplantation research continues to address scientific and ethical hurdles.
Conclusions:
- Xenotransplantation presents a potential avenue to alleviate the global organ donor deficit.
- The trend highlights the urgent need to address organ scarcity and high transplantation costs worldwide.
- China must proactively navigate the scientific, public health, and ethical dimensions of xenotransplantation clinical trials.
Background:
Similar to most countries in the world, China has a severe shortage of human organs, and this is one of the main issues restricting the application of organ transplantation technology. In 2019 alone, only 19,454 (23.90%) of the 81,410 people waiting were able to receive organ transplants. There is an increasing focus from both the medical profession and society on how to fill the gap between supply and demand.
Methods:
Xenotransplantation using animal organs is being considered as one option to make up for the shortage of human organs for transplantation. For some years now, the international medical community has been examining the possibility of using animal organs for human transplant. However, the research has faced two important types of challenges: scientific and ethical issues.
Results:
In January 2021, the first clinical trial of transgenic pig heart transplantation into a human recipient was completed by the Medical Center of the University of Maryland in the United States. This has stimulated enthusiasm and interest in xenotransplantation.
Conclusions:
The trend towards xenotransplantation has highlighted global problems such as the severe shortage of organ transplant donors and the high cost of organ transplantation. China needs to consider how to cope with the scientific, public health, and social ethics challenges of xenotransplantation clinical trials.

