Molecular pathogenesis of AIDS-associated non-Hodgkin's lymphoma
- PMID: 2022596
Molecular pathogenesis of AIDS-associated non-Hodgkin's lymphoma
Abstract
The pathogenesis of non-Hodgkin's lymphoma (NHL) in HIV-infected individuals is currently poorly understood; however, recent molecular studies have subdivided these lymphomas into distinct molecular pathologic entities. Similar to endemic and sporadic Burkitt's lymphoma, monoclonal B-lymphoma subsets were found to be infected with Epstein-Barr virus (EBV) or have c-myc gene rearrangements, suggesting a role for EBV infection or chromosomal translocation in a subset of AIDS NHLs. Similar to lymphomas that occur in immunosuppressed transplant patients, EBV-positive polyclonal lymphomas also have been described. Unique to HIV-infected patients, however, is the subset of polyclonal B-cell lymphoma with no evidence for EBV infection. Based on these molecular studies, it is apparent that the AIDS NHLs represent a heterogeneous set of diseases with a number of pathogenic processes involved in lymphomagenesis.
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