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IFN-β production promotes metabolic rewiring and protection against oxidative stress in hepatitis delta virus-infected hepatocyte cultures
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IFN-β production promotes metabolic rewiring and protection against oxidative stress in hepatitis delta virus-infected hepatocyte cultures
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Journal Article
IFN-β production promotes metabolic rewiring and protection against oxidative stress in hepatitis delta virus-infected hepatocyte cultures
2025
Overview
Type I interferons are secreted in response to various stimuli and are used as a treatment for many diseases, including infections with the hepatitis B virus (HBV) and its satellite virus, hepatitis delta (HDV). HDV significantly aggravates HBV-mediated liver damage and is – in contrast to HBV - a strong inducer of interferon responses, including IFN-β. As the role of IFN- β in liver metabolism is so far ill explored, we studied its impact on hepatocyte metabolism in HDV-infected cultures. Transcriptome analysis, isotope tracing and functional tests on differentiated, HDV-infected hepatocytes showed reduction of mitochondrial TCA cycle and respiratory activity and increases in serine, asparagine and glutathione synthesis. Furthermore, the stress-response factor ATF4 was activated by IFN-β via yet unidentified non-canonical mechanisms and mediated resistance to oxidants. IFN-β furthermore reduced the expression and activity of liver differentiation markers. Thus, IFN-β-mediated dedifferentiation and stress-resistance may contribute to HDV-associated liver pathology.
Publisher
Nature Publishing Group UK,Springer Nature B.V,Nature Publishing Group
Subject
/ 13/106
/ 13/109
/ 13/31
/ 13/89
/ 14/34
/ 38/77
/ 38/91
/ Activating Transcription Factor 4 - metabolism
/ Biomedical and Life Sciences
/ Hepatitis Delta Virus - pathogenicity
/ Hepatitis Delta Virus - physiology
/ Humans
/ Interferon-beta - biosynthesis
/ Interferon-beta - metabolism
/ Kinases
/ Liver
/ Oxidants
/ Proteins
/ Viruses
