title: Detection of hepatitis C virus RNA in paraffin-embedded tissues from patients with non-Hodgkin's lymphoma.
abstract: The aim of this study is to detect the possible role of hepatitis C Virus (HCV) in lymphomagenesis. HCV-RNA and anti-HCV antibodies were studied in tissue and serum samples taken from patients with non-Hodgkin's Lymphoma (NHL). The prevalence of HCV, the clinical presentation of these cases, and association with histologic subtypes were determined. RT-PCR was used to detect the HCV-RNA in serum and tissue samples. The anti-HCV antibodies were tested with microparticle enzyme immunoassay. Immunohistochemistry with the ABC method was used to detect the HCV core protein in HCV-RNA(+) cases. RNA could be detected in 30 of 35 cases, and other tests were performed in these 30 samples. HCV-RNA was detected in 11 tissue samples (11/30, 37%). HCV core protein was studied in 10 of 11 HCV-RNA(+) cases, and 1-3% nuclear staining was found in only 2 samples. Serologically, HCV-RNA was detected in 7 of 30 samples (23.3%) and anti-HCV antibody was detected in 3 of 30 samples (10%). Detection of HCV-RNA in 37% of the lymphoma tissue samples suggests that HCV may have a role or is a contributing factor in the pathogenesis of lymphoma. The very low HCV core protein in lymphoma tissues may be due to the low viral load in lymphoid tissues and/or higher sensitivity of the PCR method. Detection of anti-HCV antibody in only three cases may be associated with undetectable levels of antibodies due to the immune deficiency in cases with NHL.
authors.affiliation: Department of Oncology, Cukurova University Faculty of Medicine, 01330 Balcali, Adana, Turkey. sepay@cu.edu.tr
authors.forename: Semra
authors.initials: S
authors.lastname: Paydas
authors.forename: Melek
authors.initials: M
authors.lastname: Ergin
authors.forename: Kahraman
authors.initials: K
authors.lastname: Tanriverdi
authors.forename: Sinan
authors.initials: S
authors.lastname: Yavuz
authors.forename: Umut
authors.initials: U
authors.lastname: Disel
authors.forename: Nil Banu
authors.initials: NB
authors.lastname: Kilic
authors.forename: Seyda
authors.initials: S
authors.lastname: Erdogan
authors.forename: Berksoy
authors.initials: B
authors.lastname: Sahin
authors.forename: Ilhan
authors.initials: I
authors.lastname: Tuncer
authors.forename: Refik
authors.initials: R
authors.lastname: Burgut
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000914:Antibodies, Viral / Q000097:blood; D005260:Female; D016174:Hepacivirus / Q000235:genetics* / Q000276:immunology; D006801:Humans; D007150:Immunohistochemistry; D008228:Lymphoma, Non-Hodgkin / Q000821:virology*; D008297:Male; D008875:Middle Aged; D010232:Paraffin; D012367:RNA, Viral / Q000032:analysis* / Q000097:blood; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016610:Tissue Embedding; D014758:Viral Core Proteins / Q000032:analysis
chemical_list: D000914:Antibodies, Viral; D012367:RNA, Viral; D014758:Viral Core Proteins; C069130:nucleocapsid protein, Hepatitis C virus; D010232:Paraffin