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KSHV/HHV8-associated lymphoproliferations in the AIDS setting
1Department of Virology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany. tschulz@virologie.mh-hannover.de
European Journal of Cancer (Oxford, England : 1990)
|June 26, 2001
Summary
Kaposi's sarcoma-associated herpesvirus (KSHV), or human herpesvirus 8 (HHV8), drives AIDS-related lymphomas like primary effusion lymphoma (PEL) and multicentric Castleman's disease (MCD). Viral genes, including vIL6, contribute to disease severity and pathogenesis.
Area of Science:
- Virology
- Oncology
- Immunology
Background:
- Kaposi's sarcoma-associated herpesvirus (KSHV), also known as human herpesvirus 8 (HHV8), is linked to lymphoproliferative disorders in AIDS patients.
- These disorders include primary effusion lymphoma (PEL) and multicentric Castleman's disease (MCD).
Purpose of the Study:
- To explore the role of KSHV viral genes in the pathogenesis of PEL and MCD.
- To understand the contribution of specific viral factors like vIL6, LANA, and vIRFs.
Main Methods:
- Analysis of KSHV gene expression patterns in PEL and MCD.
- Investigating the function of viral genes, such as vIL6, in promoting plasma cell growth.
- Correlating viral gene expression and production with disease severity.
Main Results:
- KSHV latency is typical in PEL, with infrequent viral production.
- MCD exhibits less restrictive viral gene expression and detectable virus production correlating with disease severity.
- Viral IL-6 (vIL6) promotes plasma cell growth and is implicated in PEL and MCD pathogenesis.
- Other KSHV genes, including LANA and vIRFs, may also contribute to these diseases.
Conclusions:
- KSHV plays a significant role in the pathogenesis of PEL and MCD.
- Viral genes, particularly vIL6, are key contributors to the distinct features and severity of these KSHV-associated lymphoproliferative disorders.
- While KSHV infection may explain MCD features, PEL likely involves additional genetic alterations.