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M9460206.TXT
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1994-06-12
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Document 0206
DOCN M9460206
TI Epstein-Barr virus surveillance after renal transplantation.
DT 9408
AU Crompton CH; Cheung RK; Donjon C; Miyazaki I; Feinmesser R; Hebert D;
Dosch HM; Division of Nephrology, Hospital for Sick Children, Toronto,;
Ont., Canada.
SO Transplantation. 1994 Apr 27;57(8):1182-9. Unique Identifier : AIDSLINE
MED/94233599
AB At least 1% of organ transplant recipients develop Epstein-Barr
virus-positive, often fatal lymphomas. EBV-positive cells accumulating
in some organ transplant recipients were suggested to predict EBV+
lymphoma risk but no prospective study has been reported. We used the
polymerase chain reaction (PCR) to detect EBV genomic sequences in
successive blood samples of 60 kidney recipients before and up to 11
years after renal transplantation. Xenotransplantation of EBV-positive
patient and -negative control samples into mice with severe combined
immunodeficiency (SCID) was used to assess the tumor risk inherent in
these samples. Despite single EBV+ cell detection sensitivity, none of
the control samples was positive for EBV genomic sequences. In nearly
2/3 of patients EBV genomic DNA was detectable 3-6 months after
transplantation for about 3 months. No patient developed lymphoma.
Lymphocytes from 8 EBV-genome positive patients and 10 healthy donors
were engrafted into 38 SCID mice. Human B cell lymphoma developed in 75%
of the control grafts within about 3 months. In striking contrast, none
of the patient grafts developed lymphoma despite the large numbers of
EBV+ cells initially transplanted. Patient lymphocyte grafts were
resistant to injection of live EBV, while in control lymphocyte grafts
this caused lymphoma development within 3 weeks. We conclude that a
100-1000-fold expansion of circulating EBV+ B cell pools occurs
frequently after organ transplantation and that it is balanced by
effective EBV immunosurveillant functions resistant to
immunosuppression. The mere detection of EBV genomic material was not
predictive of lymphoma development.
DE Adolescence Animal Child DNA, Viral/ANALYSIS Herpesvirus 4,
Human/GENETICS/*ISOLATION & PURIF Human Kidney
Transplantation/*PATHOLOGY/PHYSIOLOGY Lymphocytes/*MICROBIOLOGY
Lymphoma/MICROBIOLOGY Mice Mice, SCID Polymerase Chain Reaction
Saliva/MICROBIOLOGY Support, Non-U.S. Gov't Time Factors
Transplantation, Heterologous/PATHOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).