期刊
TRANSPLANTATION
卷 76, 期 6, 页码 984-988出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.TP.0000085602.22498.CF
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Background An association between posttransplani lymphoproliferative disorder (PTLD) and cyclosporine A (CsA) and OKT3 has often been postulated on the basis of retrospective studies, although a randomized study with PTLD as the endpoint will probably never be performed. Because focus on PTLD coincided with the use of these drugs, a bias could be suspected. Methods. In a retrospective, nonrandomized study, we reevaluated all lymphoma-like lesions arising in kidney-transplant patients grafted at our center during 1969 to 1998 and observed up to 2002. Case pathology was reviewed, and an association with Epstein. Barr virus (EBV) infection (and latency pattern) was assessed. Results. We did not find any significant difference in the incidence of PTLDs when comparing the pred. nisolone/azathioprine, and CsA eras (P=0.89), the periods before or after OKT3 (P=0.61), and those before or after antilymphocyte globulin (ALG) (P=0.22). Occurrence time was shorter in the CsA (P=0.059), OKT3 (P=0.007), and ALG (P=0.007) eras. In the OKT3 era, 182 patients received, and 224 did not receive, OKT3; after the same observation time, there had been eight and five PTLDs, respectively (P=0.34). The use of mycophenolate mofetil (MMF) was associated with a reduction in the number of PTLDs (P=0.01). EBV was detected in 16 of 21 (76%) cases. Conclusions. We found no evidence to implicate any one drug regime preferentially in the development of PTLDs. The risk of developing PTLD seems to be result of the whole transplantation process, which includes the antigenicity of the foreign graft, the immunosuppression resulting in inadequate cytotoxic T-cell activity, and the result of EBV infection. An important minority of cases are EBV negative.
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