Impact of human immunodeficiency virus infection on the histological features of chronic hepatitis C: a case-control

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Establishment of the Dual Humanized TK-NOG Mouse Model for HIV-associated Liver Pathogenesis
00:10

Establishment of the Dual Humanized TK-NOG Mouse Model for HIV-associated Liver Pathogenesis

Published on: September 11, 2019

Y Allory1, F Charlotte, Y Benhamou

  • 1Service d'Anatomie et de Cytologie Pathologiques, Groupe Hospitalier Pitié-Salpétrière, Paris, France.

Human Pathology
|February 9, 2000
PubMed

Insights

Human immunodeficiency virus (HIV) accelerates hepatitis C virus (HCV) liver disease progression. HIV-positive patients with low CD4 counts showed significantly higher rates of cirrhosis compared to others.

Area of Science:

  • Hepatology
  • Virology
  • Immunology

Background:

  • Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) share transmission routes, leading to frequent co-infection.
  • Previous research indicated HIV may worsen chronic hepatitis C, accelerating cirrhosis, but lacked control for key fibrosis factors.

Purpose of the Study:

  • To investigate the impact of HIV on the progression of liver fibrosis in chronic hepatitis C patients.
  • To analyze liver biopsy data, controlling for risk factors like alcohol, sexual transmission, age, and duration of HCV infection.

Main Methods:

  • Comparative analysis of liver biopsy specimens from 58 HIV/HCV co-infected patients and 58 HCV-monoinfected patients.
  • Patients were matched based on known risk factors for liver fibrosis progression.
  • Liver fibrosis and activity were assessed using the METAVIR scoring system.

Main Results:

  • HCV patients with HIV exhibited higher METAVIR activity scores compared to HIV-negative patients.
  • Cirrhosis was significantly more prevalent in HIV-positive patients with CD4 counts ≤ 200 cells/µL (45%) versus HIV-negative patients (10%).
  • Within the HIV-positive group, those with CD4 counts ≤ 200 cells/µL had higher cirrhosis rates (45%) than those with CD4 > 200 cells/µL (17%).

Conclusions:

  • HIV status significantly influences the progression of liver disease in patients with chronic hepatitis C.
  • Lower CD4+ T-cell counts in HIV-positive individuals correlate with increased rates of cirrhosis.
  • Enhanced HCV replication or altered immune responses during HIV infection may drive accelerated liver fibrosis.

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