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Viruses and Hodgkin s lymphoma Jarrett RFAnn Oncol 2002[]; 13 Suppl 1 (ä): 23-9Hodgkin's lymphoma (HL) is unusual among human malignancies in that the epidemiology suggests an infectious aetiology. The Epstein-Barr virus (EBV) is associated with a proportion of cases and this association is believed to be causal. In these cases the Hodgkin and Reed-Sternberg (HRS) cells express the EBV-encoded proteins LMP1 and LMP2, which can mimic CD40 and the B cell receptor, respectively, and therefore may play a critical role in facilitating the survival of HRS cells. EBV-associated and non-EBV-associated HL cases have different epidemiological features and recent data suggest that delayed exposure to EBV is a risk factor for the development of EBV-associated HL in young adults. We suggest that HL can be divided into four entities on the basis of EBV status and age at presentation, with three groups of EBV-associated cases and a single group of EBV-negative cases. The aetiology of the latter cases is obscure although involvement of an infectious agent(s) is suspected.|Herpesvirus 4, Human/*physiology[MESH]|Hodgkin Disease/metabolism/*virology[MESH]|Humans[MESH]|Models, Biological[MESH]|Reed-Sternberg Cells/metabolism/*virology[MESH]|Viral Matrix Proteins/metabolism[MESH] |
