Abstract
The age-specific incidence of Hodgkin lymphoma (HL) is bimodal with peaks occurring among young adults (15 – 34 years old) and people older than 45 years. Epstein-Barr virus (EBV) is associated with only one-third of HL cases. This study sought to determine if Torque teno virus (TTV) might be independently associated with HL. The presence of EBV was appraised by in situ hybridization and immunohistochemistry in lymph node biopsies from 46 patients (3 – 81 years old) with HL. TTV DNA was assessed by PCR amplification. EBV was detected in 22 (48%) patients. TTV DNA was detected in 24/46 (52%) patients, as well as in 12/20 (60%) control patients with lymphoid unspecific hyperplasia. TTV DNA was not significantly more frequent in EBV negative (54%) than in EBV positive (50%) nodes. However, it was observed that the group of young adults (15 – 34 years, n = 19) showed the lowest EBV frequency (21%) but the highest TTV occurrence (60%). This may suggest an involvement of TTV infection in the pathogenesis of HL in young adults. Further large population-based studies are required to confirm our findings.
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