1. Development of a Novel Site-Specific Pegylated Interferon Beta for Antiviral Therapy of Chronic Hepatitis B Virus.
- Author
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Tsuge M, Uchida T, Hiraga N, Kan H, Makokha GN, Abe-Chayama H, Miki D, Imamura M, Ochi H, Hayes CN, Shimozono R, Iwamura T, Narumi H, Suzuki T, Kainoh M, Taniguchi T, and Chayama K
- Subjects
- Animals, Cell Line, Tumor, Chemokine CXCL10 biosynthesis, DNA, Circular metabolism, DNA, Viral metabolism, Hep G2 Cells, Humans, Mice, Mice, SCID, Mice, Transgenic, Recombinant Proteins pharmacology, Treatment Outcome, Viral Load drug effects, Virus Replication drug effects, Antiviral Agents pharmacology, Hepatitis B Surface Antigens metabolism, Hepatitis B virus drug effects, Hepatitis B, Chronic drug therapy, Interferon-alpha pharmacology, Polyethylene Glycols pharmacology
- Abstract
Although nucleot(s)ide analogues and pegylated interferon alpha 2a (PEG-IFN-α2a) can suppress hepatitis B virus (HBV) replication, it is difficult to achieve complete HBV elimination from hepatocytes. A novel site-specific pegylated recombinant human IFN-β (TRK-560) was recently developed. In the present study, we evaluated the antiviral effects of TRK-560 on HBV replication in vitro and in vivo. In vitro and in vivo HBV replication models were treated with antivirals including TRK-560, and changes in HBV markers were evaluated. To analyze antiviral mechanisms, cDNA microarray analysis and an enzyme-linked immunoassay (ELISA) were performed. TRK-560 significantly suppressed the production of intracellular HBV replication intermediates and extracellular HBV surface antigen (HBsAg) ( P < 0.001 and P < 0.001, respectively), and the antiviral effects of TRK-560 were enhanced in combination with nucleot(s)ide analogues, such as entecavir and tenofovir disoproxil fumarate. The reduction in HBV DNA levels by TRK-560 treatment was significantly higher than that by PEG-IFN-α2a treatment both in vitro and in vivo ( P = 0.004 and P = 0.046, respectively), and intracellular HBV covalently closed circular DNA (cccDNA) reduction by TRK-560 treatment was also significantly higher than that by PEG-IFN-α2a treatment in vivo ( P = 0.0495). cDNA microarrays and ELISA for CXCL10 production revealed significant differences between TRK-560 and PEG-IFN-α2a in the induction potency of interferon-stimulated genes. TRK-560 shows a stronger antiviral potency via higher induction of interferon-stimulated genes and stronger stimulation of immune cell chemotaxis than PEG-IFN-α2a. As HBsAg loss and HBV cccDNA eradication are important clinical goals, these results suggest a potential role for TRK-560 in the development of more effective treatment for chronic hepatitis B infection., (Copyright © 2017 American Society for Microbiology.)
- Published
- 2017
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