Journal
EXPERT REVIEW OF ANTI-INFECTIVE THERAPY
Volume 15, Issue 2, Pages 111-119Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14787210.2017.1254550
Keywords
Dengue virus; FcR; antibody; neutralization; antibody-dependent enhancement; dengue vaccine; immune correlates
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Introduction: Dengue is a prevalent disease in tropical and subtropical countries with an estimated 400 million people infected annually. While significant advancement has been made in the chase for an effective dengue vaccine, the recently licensed Sanofi vaccine was, in contrast to in vitro data, only partially protective.Areas covered: This suggests that our understanding of the serological correlates for dengue is currently inadequate. With growing evidence supporting the role of fragment crystalizable gamma receptors (FcRs) in antibody-mediated neutralization or antibody-dependent enhancement (ADE) of dengue virus (DENV) infection, FcR-expressing cells have been increasingly used for measuring neutralizing antibody responses elicited by dengue vaccines. Here, we review the mechanisms of how FcRs modulates both DENV neutralization and enhanced infections via its interactions with antibodies.Expert commentary: This review provides insights on the importance of factoring FcRs for in vitro neutralization assays. Bridging the gap between in vitro and clinical observations would allow researchers to more accurately predict in vivo vaccine efficacy.
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