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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Overcoming immune tolerance in chronic hepatitis B by therapeutic vaccination.
Curr. Opin. Virol. 30, 58-67 (2018)
The currently used nucleoside analogs (i.e. entecavir and tenofovir) with high barrier-to-resistance efficiently suppress viral replication, limit inflammation and reduce the sequelae of chronic hepatitis B, but cannot cure the disease and thus have to be applied long-term. Therapeutic vaccination as an approach to cure chronic hepatitis B has shown promising pre-clinical results, nevertheless the proof of its efficacy in clinical trials is still missing. This may be partially due to suboptimal vaccine design. A main obstacle in chronic hepatitis B, however, is the high load of viral antigens expressed and secreted, which has been proposed to cause antigen-specific immune tolerance. Reduction of the viral antigen load is therefore considered a key factor for success of immune-based therapies. Although nucleoside analogs do not reduce viral antigen expression, new antiviral strategies are becoming available. Targeting viral translation by siRNA or targeting release of HBsAg from infected hepatocytes by nucleic acid polymers both reduce the antigen load. They may be considered as pre-treatment for therapeutic vaccination to increase the potential to elicit an HBV-specific immune response able to control and cure chronic HBV infection.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Review
ISSN (print) / ISBN
1879-6257
e-ISSN
1879-6265
Zeitschrift
Current Opinion in Virology
Quellenangaben
Band: 30,
Seiten: 58-67
Verlag
Elsevier
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Virology (VIRO)