Increasing the breadth and potency of response to the seasonal influenza virus vaccine by immune complex immunization

Jad Maamary, Taia T. Wang, Gene S. Tan, Peter Palese, Jeffrey V. Ravetch

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The main barrier to reduction of morbidity caused by influenza is the absence of a vaccine that elicits broad protection against different virus strains. Studies in preclinical models of influenza virus infections have shown that antibodies alone are sufficient to provide broad protection against divergent virus strains in vivo. Here, we address the challenge of identifying an immunogen that can elicit potent, broadly protective, antiinfluenza antibodies by demonstrating that immune complexes composed of sialylated antihemagglutinin antibodies and seasonal inactivated flu vaccine (TIV) can elicit broadly protective antihemagglutinin antibodies. Further, we found that an Fc-modified, bispecific monoclonal antibody against conserved epitopes of the hemagglutinin can be combined with TIV to elicit broad protection, thus setting the stage for a universal influenza virus vaccine.

Original languageEnglish
Pages (from-to)10172-10177
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume114
Issue number38
DOIs
StatePublished - 19 Sep 2017

Keywords

  • CD23
  • Immune complex
  • Sialylated Fc
  • TIV
  • Universal influenza vaccine

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