['The purpose of this study was to determine the utility of post-transplant serum soluble CD30 levels as a biomarker for the development of the bronchiolitis obliterans syndrome (BOS) after lung transplantation during a tacrolimus/mycophenolate mofetil-based regimen.', 'Soluble CD30 (sCD30) concentrations were measured prior to transplantation and in 175 samples taken after transplantation in 7 patients developing BOS and 7 non-BOS patients closely matched for age, underlying diseases, follow-up and gender.', 'High pre-transplant sCD30 levels dropped significantly after lung transplantation, but in the post-transplant samples no differences could be detected between patients developing BOS or not, and no changes were found prior to or during the development of BOS.'] Does soluble CD30 measured after lung transplantation predict bronchiolitis obliterans syndrome in a tacrolimus/mycophenolate mofetil-based immunosuppressive regimen?