Key facts
- A 19-year-old in the UK received a transplant of his own previously frozen testicular tissue.
- The procedure aims to restore fertility for boys undergoing chemotherapy, which can damage sperm-producing cells.
- This is the first testicular tissue transplant performed in the UK and the second globally.
- The patient had his tissue frozen three years before chemotherapy for a blood disorder.
- Doctors expect to know within months if the transplant enables sperm production.
Surgeons in the UK have performed the first testicular tissue transplant on a teenager, offering a potential breakthrough for male fertility preservation. The 19-year-old patient had his testicular tissue removed and frozen three years ago before undergoing chemotherapy for a serious blood disorder. This procedure, carried out by NHS medics in Edinburgh, aims to enable him to produce sperm, as chemotherapy can permanently damage the cells responsible for sperm production.
The patient expressed gratitude for the procedure, stating it gave him "genuine hope for the future" after struggling with fertility concerns. He noted that while success is not guaranteed, the possibility means more to him than words can express. He also hopes his participation in the research will offer similar hope to other young people in his situation.
Freezing semen is a common fertility preservation method for older males, but it is not an option for pre-pubescent boys. This new treatment potentially opens doors for fertility preservation for children undergoing cancer care and other treatments requiring chemotherapy. The transplanted tissue contains spermatogonial stem cells, which are crucial for sperm production from puberty onwards. Doctors anticipate knowing within months if the procedure, which took place in August, has been successful in enabling the patient to produce viable sperm.
The research behind this transplant has been ongoing for a decade, led by the University of Edinburgh and supported by funding from Children with Cancer UK. Professor Rod Mitchell of Edinburgh’s Institute for Regeneration and Repair highlighted the significance of the step towards helping boys facing fertility-damaging treatments. Tracey Gillies, medical director at NHS Lothian, described the operation as a "landmark procedure" that advances care for children affected by serious illness treatments.
This development follows a report in May by The Guardian about a man who successfully produced sperm after his testicular tissue, frozen during childhood, was retransplanted 16 years later. According to the University of Edinburgh, over 1,200 patients in the UK and 3,100 worldwide have had testicular tissue stored for potential future use.