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Lung xenotransplantation: a review
Chris Laird1, Lars Burdorf, Richard N Pierson
1aDivision of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine bVA Maryland Healthcare System, Baltimore, Maryland, USA.
Current Opinion in Organ Transplantation
|March 12, 2016
Summary
Lung xenotransplantation shows promise, with genetic modifications and targeted drugs improving pig lung function and survival. These advancements move us closer to therapeutic use in humans.
Area of Science:
- Xenotransplantation research
- Immunology
- Genetics
Background:
- Lung xenotransplantation faces significant challenges due to xenograft injury.
- Understanding these injury mechanisms is crucial for therapeutic development.
Purpose of the Study:
- To review recent progress in lung xenotransplantation.
- To examine genetic modifications and interventions for therapeutic application.
Main Methods:
- Review of lung xenotransplantation experiments.
- Analysis of genetic modifications targeting xenogeneic lung injury.
- Evaluation of drug treatments for inflammatory and clotting pathways.
Main Results:
- Genetic modifications (e.g., human complement/coagulation genes, GalT/Neu5Gc knockout) improve lung survival/function.
- Drug treatments targeting inflammation and clotting attenuate injury.
- Other organ xenotransplantation models show long-term graft survival with antibody regimens.
Conclusions:
- Mechanism-directed genetic modifications and drug interventions enhance pig lung function and survival.
- Successful xenotransplantation of other pig organs suggests feasibility for lungs.
- Therapeutic use of pig lung xenografts may be achievable soon.
