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No evidence for simian virus 40 DNA sequences in malignant non‐Hodgkin lymphomas
Author(s) -
Schüler Frank,
Dölken Sandra C.,
Hirt Carsten,
Dölken Marc T.,
Mentel Renate,
Gürtler Lutz G.,
Dölken Gottfried
Publication year - 2006
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.21346
Subject(s) - lymphoma , virus , lymph node , antigen , pathology , lymph , biology , polymerase chain reaction , peripheral blood mononuclear cell , virology , immunology , medicine , gene , biochemistry , in vitro
Abstract DNA sequences coding for simian virus 40 (SV40) large T antigen have been detected at different frequencies in human non‐Hodgkin's lymphomas (NHL) by PCR techniques as well as immunohistochemistry. A highly sensitive quantitative real‐time PCR specific for a sequence of SV40 large T antigen was established to test whether SV40 DNA is present in malignant lymphomas of German patients. Thirty‐three lymph node samples obtained from 27 patients with NHL and 6 patients with Hodgkin's disease (HD) were tested in addition to 48 samples of peripheral blood mononuclear cells (PBMNC) from patients with NHL containing between 0.1% and >90% circulating lymphoma cells determined by PCR. Fourteen lymph nodes obtained from patients with other diseases than malignant lymphomas and 47 PBMNC samples from healthy volunteers served as controls. All samples from patients with malignant lymphomas and all controls were negative for SV40 DNA by quantitative real‐time. In contrast, EBV‐DNA could be detected in 29 of 46 DNA preparations isolated from lymph nodes (63%) and in 20 of 47 DNA preparations from PBMNC. EBV‐positive samples contained between 5 and 80,000 EBV copies per 100,000 cells. Our results do not support the hypothesis that SV40 plays a major role in the etiology of malignant lymphomas and, in addition, they exclude a clonal SV 40 infection of malignant lymphoma cells in all samples investigated. © 2005 Wiley‐Liss, Inc.

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