The genotype of the hepatitis C virus in patients with HCV-related B cell non-Hodgkin's lymphoma

Leukemia
F SilvestriM Baccarani

Abstract

Increasing evidence suggests that the hepatitis C virus (HCV) might be involved in the pathogenesis of B cell non-Hodgkin's lymphomas (NHL). Since several HCV genotypes are currently identifiable and might be involved in the pathogenesis of different diseases (with different severity and responsiveness to therapy), the aim of our study was to assess the prevalence of viral genotypes in a group of patients with HCV-related NHL. Among 470 consecutive patients, 42 HCV Ab-positive cases were identified. HCV RNA could be detected by reverse transcriptase-polymerase chain reaction and genotyping performed in 31 of these cases. As compared to our control group (211 healthy blood donors and patients with chronic liver disease), a striking high prevalence of genotype 2ac was detected among B cell NHL (48.4 vs 9.0%), with a relative risk of infection of 5.37 (P < 0.0001). No major differences were observed in the distribution of NHL histotypes and in the clinical features among patients with genotype 1b (the other most frequent genotype) or 2ac, a part from a trend towards a higher percentage of liver disease and a lower likelihood of response to interferon for patients with genotype 1b. The same high prevalence of genotype 2ac has been ...Continue Reading

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