NDT Advance Access originally published online on February 18, 2009
Nephrology Dialysis Transplantation 2009 24(5):1682-1685; doi:10.1093/ndt/gfp044
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Immunoprotection by polyethylene glycol in organ preservation solutions is not due to an immunomasking effect
1 INSERM, U851, 21 Avenue Tony Garnier, Lyon, F-69007, France, Université Lyon 1, Villeurbanne, F-69622, France, IFR128, Lyon, F-69007 2 Service de Néphrologie et Transplantation 3 Laboratoire dImmunologie 4 Service dUrologie et chirurgie de la Transplantation, Hospices Civils de Lyon, Hôpital Edouard Herriot, Lyon, F-69003, France
Correspondence and offprint requests to: Hélène Perrin, INSERM, U851, 21 Avenue Tony Garnier, Lyon, F-69007, France. Tel: +33-4-37-28-23-43; Fax: +33-4-37-28-23-41; E-mail: helene.perrin{at}inserm.fr
| Abstract |
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Background: New organ preservation solutions that contain soluble polyethylene glycol (sPEG) molecules have been associated with reduction of acute rejection episodes.
Methods: In the present manuscript we tested in vitro whether sPEG molecules were able to mask donor alloantigens and reduce graft immunogenicity.
Results: Immunomasking effect was only evidenced when PEG molecules were covalently bound to donor cell surface.
Conclusion: We concluded that sPEG in preservation solution are unlikely to display immunocamoflage property.
Keywords: immunocamouflage; ischemia/reperfusion; organ preservation solution; polyethylene glycols; transplantation
Received for publication: 25. 8.08
Accepted in revised form: 22. 1.09