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Microsatellite instability in KSHV/HHV-8 positive body-cavity-based lymphoma
G Gaidano1, C Pastore, A Gloghini
1Dipartimento di Scienze Mediche, Università di Torino, Italy.
Human Pathology
|June 1, 1997
Summary
This study investigated microsatellite instability (MSI) in AIDS-related body-cavity-based lymphoma (BCBL). MSI was detected in tumor cells, suggesting its potential role in BCBL development.
Area of Science:
- Oncology
- Genetics
- Virology
Background:
- Body-cavity-based lymphoma (BCBL) is a rare non-Hodgkin's lymphoma (NHL) subtype.
- BCBL is strongly associated with Kaposi's sarcoma-associated herpesvirus/human herpesvirus type-8 (KSHV/HHV-8).
- Microsatellite instability (MSI), a marker of genomic instability, has not been previously studied in BCBL.
Observation:
- Microsatellite instability (MSI), a form of genomic instability, has not been previously studied in BCBL.
- This study investigated MSI in tumor cells from a patient with AIDS-related BCBL.
- DNA from tumor cells and autologous peripheral blood mononuclear cells was analyzed at 12 microsatellite loci.
Findings:
- MSI was detected at 4 out of 12 microsatellite loci examined.
- Loss of the germline allele at one X-chromosome locus indicates MSI is a clonal lesion in this BCBL case.
- The MSI detected affects nearly all tumor cells.
Implications:
- These findings suggest that MSI may be implicated in the pathogenesis of AIDS-related BCBL.
- Further research into MSI in BCBL could reveal new therapeutic targets.
- This study highlights the potential role of genomic instability in KSHV/HHV-8-associated lymphomas.