Synergy of therapeutic heterologous prime-boost hepatitis B vaccination with CpG-application to improve immune control of persistent HBV infection

Anna D. Kosinska, Abdul Moeed, Nina Kallin, Julia Festag, Jinpeng Su, Katja Steiger, Marie Louise Michel, Ulrike Protzer, Percy A. Knolle

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Therapeutic vaccination against chronic hepatitis B must overcome high viral antigen load and local regulatory mechanisms that promote immune-tolerance in the liver and curtail hepatitis B virus (HBV)-specific CD8 T cell immunity. Here, we report that therapeutic heterologous HBcore-protein-prime/Modified-Vaccinia-Virus-Ankara (MVA-HBcore) boost vaccination followed by CpG-application augmented vaccine-induced HBcAg-specific CD8 T cell-function in the liver. In HBV-transgenic as well as AAV-HBV-transduced mice with persistent high-level HBV-replication, the combination of therapeutic vaccination with subsequent CpG-application was synergistic to generate more potent HBV-specific CD8 T cell immunity that improved control of hepatocytes replicating HBV.

Original languageEnglish
Article number10808
JournalScientific Reports
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2019

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