Chinese scientists perform first pig lung transplant into human

Chinese scientists have successfully transplanted genetically modified pig lungs into a patient in clinical death for the first time in the world. The significance of this research lies in the fact that it could open new possibilities for xenotransplantation of animal organs. The patient, a 39-year-old man, was in clinical death due to a stroke. However, according to the researchers involved, the transplanted lungs were not immediately rejected by the patient's immune system.

The Importance and Results of the New Technology

As a result, the successful transplantation of pig lungs into a human body was demonstrated, which could be an important step in addressing one of the biggest issues of xenotransplantation — organ rejection. The scientists used this system as an experiment, but the main focus was on observing how the human immune system would react to such a process. The complexity of lung transplantation lies in the fact that the organ is constantly exposed to air and microbes, which could activate the immune system and lead to rejection.

Genetic Modifications and Their Importance

It was also emphasized that thanks to genetic modifications, rejection was prevented, and the CRISPR/Cas9 technology was used for this purpose. This technology is crucial in preventing the human immune system from recognizing the transplanted tissues as foreign. As a result, antibodies against pig tissues decreased, inflammation was reduced, and immune-related damage was prevented.

The Future of Xenotransplantation and New Methods

For a long time, xenotransplantation (transplanting animal organs into humans) was considered impossible, as the human immune system would reject foreign tissues. However, the emergence of the CRISPR/Cas9 technology has changed this situation. In 2022, American doctors performed the first pig heart transplant in a patient with a severe illness. Although the organ initially functioned normally, the patient passed away two months later. This case prompted researchers to search for new methods to prevent organ rejection.

These new studies could mark the beginning of significant changes in the field of medicine, as they open up the possibility of treating many fatal diseases and offer new hope to people. Such methods could, in the future, contribute to the development of medical technologies and the extension of human life.