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Epstein-Barr virus infections in Brazil. II. Hodgkin's disease
Insights
This study found higher Epstein-Barr virus (EBV) antibody levels in Hodgkin
Area of Science:
- Epidemiology
- Virology
- Oncology
Background:
- Hodgkin's disease (HD) is a cancer of the lymphatic system.
- The role of Epstein-Barr virus (EBV) in HD pathogenesis is under investigation.
- Previous studies suggest a potential association between EBV and HD.
Purpose of the Study:
- To investigate the seroprevalence and antibody titers of Epstein-Barr virus (EBV) in patients with Hodgkin's disease (HD).
- To explore correlations between EBV antibody levels and demographic or clinical factors in HD patients.
Main Methods:
- Retrospective analysis of 67 Hodgkin's disease cases from São Paulo, Brazil.
- Serological testing for antibodies against Epstein-Barr virus (EBV) viral capsid antigen (VCA), early antigen (EA), and heterophile antibodies.
- Comparison of antibody titers between HD patients and matched controls.
- Analysis of EBV antibody levels in relation to patient demographics, histology, and disease stage.
Main Results:
- All HD patients (100%) had antibodies to EBV viral capsid antigen (VCA), with significantly higher geometric mean titers (GMT) compared to controls (1:162 vs. 1:67).
- Elevated VCA antibody titers (≥1:320) were observed in 31.3% of HD patients versus 3.8% of controls.
- Antibodies to EBV early antigen (EA) were present in 20.5% of HD patients.
- Highest EBV antibody titers were associated with male gender, mixed cellularity and lymphocyte depletion histological types, and stage 2 disease.
Conclusions:
- The study provides strong evidence for an association between Epstein-Barr virus (EBV) infection and Hodgkin's disease (HD) in the studied population.
- Elevated EBV VCA antibody titers are a common finding in HD patients.
- Further research is warranted to elucidate the specific role of EBV in HD development and progression.
Abstract:
Sixty-seven cases of Hodgkin's disease (HD) occurring in São Paulo, Brazil, were studied. Males with HD predominated over females 2.3 to 1. Sixty-six percent of the cases occurred in patients under 30 years of age, 31.7% under 20 years of age, and only 7.5% after 50 years of age. Lymphocyte predominance and mixed cellularity histologic types were most common in patients less than 15 years old, and nodular sclerosis was most common in the 15- to 19-year-old group. Sera from all patients had antibody to the viral capsid antigen (VCA) of Epstein-Barr virus (EBV). The geometric mean titer (GMT) of VCA antibody with the use of Jijoye cells as antigen was 1:162, and 31.3% of patients had titers of 1:320 or more; in controls, the GMT was 1:67 and 3.8% had titers of 1:320 or more. Similar results were obtained when EB-3 cells were used as antigen. The highest titers occurred in males, in mixed cellularity and lymphocyte depletion forms, and in stage 2 of illness. EBV-specific IgM antibody and heterophile antibody levels were not elevated, but 20.5% of the HD patients had antibody to the early antigen of EBV present in their sera. Antibody levels for herpes simplex virus, cytomegalovirus, rubella, measles, parainfluenza viruses, and papovavirus were not significantly elevated over those in matched controls.