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- Document 0726
- DOCN M9620726
- TI CD4+/CD8+ ratio of liver-derived lymphocytes is related to viraemia and
- not to hepatitis C virus genotypes in chronic hepatitis C.
- DT 9602
- AU Pham BN; Martinot-Peignoux M; Mosnier JF; Njapoum C; Marcellin P; Bougy
- F; Degott C; Erlinger S; Cohen JH; Degos F; Service d'Hematologie et
- Immunologie, Hopital Beaujon, Clichy,; France.
- SO Clin Exp Immunol. 1995 Nov;102(2):320-7. Unique Identifier : AIDSLINE
- MED/96069882
- AB The pathogenic mechanisms that lead to chronic hepatitis C are unknown.
- As hepatitis C virus (HCV) has been shown to induce T cell response, we
- assessed whether a particular T lymphocyte subset could be
- preferentially detected in the liver of patients with chronic hepatitis
- C in relation to viraemia or HCV genotypes. The immunophenotypes of
- liver-derived lymphocytes were analysed in 26 patients by flow cytometry
- and immunohistochemistry. Viraemia was quantified by branched DNA assay.
- Using this assay, HCV RNA was not detectable in six patients. HCV RNA
- was detected in 20 patients, and titres ranged from 8 to 137 x 10(6)
- Eq/ml. Genotyping was performed using a line probe assay. Type 1a, 1b,
- 2a, 3a and 4a were found to infect 2, 10, 2, 7 and 3 patients,
- respectively. The CD4+/CD8+ ratio of liver-derived lymphocytes was
- significantly higher (P < 0.01) in patients with detectable viraemia
- than in patients without detectable viraemia. In contrast, neither the
- percentage of gamma/delta T lymphocytes nor that of CD2+CD57+ cells was
- different in the groups. When comparing the CD4+/CD8+ ratio, the
- percentage of gamma/delta T lymphocytes or CD2+CD57+ cells according to
- genotype, the differences were not significant. These results suggest
- that the CD4+/CD8+ ratio of liver-derived lymphocytes is related to
- viraemia but not to HCV genotypes in patients with chronic hepatitis C,
- and that T lymphocytes may be involved in the pathogenesis of liver
- lesions in chronic hepatitis C.
- DE Adult Chronic Disease *CD4-CD8 Ratio Female Hepatitis C/*IMMUNOLOGY
- Hepatitis C Antibodies/IMMUNOLOGY Hepatitis C Viruses/IMMUNOLOGY Human
- Immunophenotyping Liver/IMMUNOLOGY Male Middle Age RNA, Viral/BLOOD
- Support, Non-U.S. Gov't T-Lymphocyte Subsets/*IMMUNOLOGY JOURNAL
- ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
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-