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Detection of Low Copy Number Integrated Viral DNA Formed by In Vitro Hepatitis B Infection
Published on: November 7, 2018
HIV-HBV and HIV-HCV coinfection and liver cancer development
1Department of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, PA, USA.
Insights
HIV patients coinfected with Hepatitis B or C virus face increased liver disease risk. Antiretroviral drugs can worsen liver damage, highlighting the need for better treatments for these coinfections.
Area of Science:
- Hepatology
- Virology
- Immunology
Background:
- Chronic Hepatitis B (HBV) and Hepatitis C (HCV) infections cause significant liver disease, including cirrhosis and hepatocellular carcinoma (HCC).
- Millions of patients with Human Immunodeficiency Virus (HIV) are coinfected with HBV or HCV, facing a complex interplay of viral and drug-induced liver damage.
- HIV-induced immune suppression exacerbates chronic viral hepatitis, increasing viral load and accelerating liver disease progression.
Purpose of the Study:
- To assess the escalating global health challenge of liver diseases in HIV-coinfected patients.
- To understand the mechanisms of viral hepatocarcinogenesis and potential HIV enhancement.
- To identify the need for improved treatments for chronic HBV and HCV in HIV-coinfected individuals.
Main Methods:
- Review of existing literature on HIV, HBV, and HCV coinfections.
- Analysis of the impact of antiretroviral therapies on liver health.
- Discussion of the challenges in establishing appropriate in vitro and in vivo models for studying viral hepatocarcinogenesis.
Main Results:
- HIV coinfection with HBV or HCV significantly increases the risk of severe liver disease and hepatocellular carcinoma.
- Hepatotoxicity of antiretroviral drugs further complicates liver damage management.
- The precise risk of HCC in this coinfected population requires further investigation.
Conclusions:
- Effective management of liver disease in HIV-coinfected patients necessitates better treatments for chronic HBV and HCV.
- Developing improved therapeutic strategies is crucial given the increasing access to HAART therapy globally.
- Further research into virus-virus and virus-host interactions is essential for advancing treatment options.
Abstract:
Liver diseases caused by chronic HBV or HCV infection, including cirrhosis and HCC, are emerging as an increasingly important problem faced by millions of HIV-infected patients who are coinfected with HBV or HCV. On one hand, HIV-induced immune suppression enhances the risk of chronic viral hepatitis, increases HBV or HCV load, and may hasten the progression to cirrhosis and liver cancer. On the other hand, significant hepatotoxicity is associated with a number of antiretroviral drugs, further exacerbating liver damage associated with chronic viral hepatitis. The exact risk of HCC in HIV and HBV or HCV coinfected patients remains to be fully assessed. The elucidation of the multiple virus-virus and virus-host interactions that underlie viral hepatocarcinogenesis and potential HIV enhancement awaits the establishment of appropriate in vitro and in vivo model systems. As millions of HIV-infected patients in the developing countries are gaining access to HAART therapy for their HIV infections, endemic HBV and HCV infections and their associated liver diseases will only become more problematic on a global level. To ameliorate the suffering from HBV- and HCV-induced liver cancer in HIV patients, more effective treatment for chronic HBV and HCV infections are needed. The long time frame of viral hepatocarcinogenesis may afford a window of opportunity to develop and improve such treatment.
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