UK researchers grow first lab-grown esophagus, restore swallowing in growing animal without immunosuppression.

UK researchers at Great Ormond Street Hospital and University College London have achieved a groundbreaking medical breakthrough.

“- Published UK scientists have grown fully functioning food pipes in a lab and successfully transplanted them into mini pigs”

BBC

They successfully grew the world's first lab-grown esophagus that restored normal swallowing function in growing animals.

BBC

The breakthrough eliminates the need for immunosuppression drugs, a major limitation in traditional organ transplantation.

This research offers new hope for children born with esophageal atresia, affecting approximately 18 babies annually in the UK.

Professor Paolo de Coppi led the research team at UCL Great Ormond Street Institute of Child Health.

The innovative technique creates a personalized esophageal scaffold using tissue from donor pigs.

The pig tissue is stripped of all cellular material while preserving the underlying structural support.

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This biocompatible scaffold serves as the foundation for implanting the patient's own cells.

Biopsy cells are collected from the child during an existing medical procedure and incorporated into the scaffold.

The engineered graft is matured in a specialized bioreactor for one week with growth fluids.

The team chose Göttingen minipigs due to their close anatomical similarity to human children.

All eight experimental animals survived the critical first 30 days after transplantation.

“- Published UK scientists have grown fully functioning food pipes in a lab and successfully transplanted them into mini pigs”

BBC

By the six-month mark, the lab-grown grafts developed complete muscle tissue, nerve networks, and blood vessel systems.

The engineered organs exhibited normal esophageal contractions with sufficient strength for proper swallowing.

Transplanted animals maintained normal eating patterns and healthy growth rates throughout the study.

Some animals developed narrowing (strictures) that were successfully managed using endoscopic techniques.

The team used spatial transcriptomics to map genes in the implanted tissue, confirming natural genetic expression patterns.

The research team is advancing the technology toward clinical application for human patients.

Professor de Coppi expressed confidence the treatment could be available to children within five years.

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Current efforts focus on refining manufacturing to create longer grafts and standardizing production methods.

Extensive safety testing is being implemented before human trials can begin.

The personalized treatment will grow naturally with the child's development.

This breakthrough represents a paradigm shift in treating congenital esophageal disorders.

The research builds upon a 50-year history of successful xenotransplantation using pig tissue.

“- Published UK scientists have grown fully functioning food pipes in a lab and successfully transplanted them into mini pigs”

BBC

Professor de Coppi noted that pig heart valves have been used in cardiac surgery for over 50 years.

BBC

Current study shows pig tissue can serve as an effective scaffold for biocompatible human tissue.

The technology overcomes challenges of organ rejection and immunosuppression.

GOSH Charity's Director emphasized the transformative potential for children with rare conditions.

The success opens possibilities for treating various pediatric conditions beyond esophageal disorders.