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Zika Virus Infection and Antibody Neutralization in FcRn Expressing Placenta and Engineered Cell Lines

Journal Article · · Vaccines
As a developmental toxicant, Zika virus (ZIKV) attacks both the growing nervous system, causing congenital Zika syndrome, and the placenta, resulting in pathological changes and associated adverse fetal outcomes. There are no vaccines, antibodies, or other treatments for ZIKV, despite the potential for its re-emergence. Multiple studies have highlighted the risk of antibodies for enhancing ZIKV infection, including during pregnancy, but the mechanisms for such effects are not fully understood. We have focused on the ability of the neonatal Fc receptor (FcRn) to interact with ZIKV in the presence and absence of relevant antibodies. We found that ZIKV replication was higher in Marvin Darby Canine Kidney (MDCK) cells that overexpress FcRn compared to those that do not, and knocking down FcRn decreased ZIKV RNA production. In the placenta trophoblast BeWo cell line, ZIKV infection itself downregulated FcRn at the mRNA and protein levels. Addition of anti-ZIKV antibodies to MDCK/FcRn cells resulted in non-monotonous neutralization curves with neutralization attenuation and even enhancement of infection at higher concentrations. Non-monotonous neutralization was also seen in BeWo cells at intermediate antibody concentrations. Our studies highlight the underappreciated role FcRn plays in ZIKV infection and may have implications for anti-ZIKV prophylaxis and therapy in pregnant women.
Research Organization:
Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0014664
OSTI ID:
2471223
Journal Information:
Vaccines, Journal Name: Vaccines Journal Issue: 12 Vol. 10; ISSN 2076-393X
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

References (28)

Characterizing the Pattern of Anomalies in Congenital Zika Syndrome for Pediatric Clinicians journal March 2017
Brain-Region-Specific Organoids Using Mini-bioreactors for Modeling ZIKV Exposure journal May 2016
Human Neonatal Fc Receptor Is the Cellular Uncoating Receptor for Enterovirus B journal May 2019
Fc Glycan-Mediated Regulation of Placental Antibody Transfer journal June 2019
In vitro and in vivo functions of SARS-CoV-2 infection-enhancing and neutralizing antibodies journal August 2021
Cross-Reactive Dengue Virus Antibodies Augment Zika Virus Infection of Human Placental Macrophages journal November 2018
Human Neonatal Fc Receptor Mediates Transport of IgG into Luminal Secretions for Delivery of Antigens to Mucosal Dendritic Cells journal June 2004
Expression of the neonatal Fc-receptor in placental-fetal endothelium and in cells of the placental immune system journal March 2019
Immunodominant SARS Coronavirus Epitopes in Humans Elicited both Enhancing and Neutralizing Effects on Infection in Non-human Primates journal March 2016
Zika virus infection in pregnant rhesus macaques causes placental dysfunction and immunopathology journal January 2018
A human endothelial cell-based recycling assay for screening of FcRn targeted molecules journal February 2018
Human cytomegalovirus evades antibody-mediated immunity through endoplasmic reticulum-associated degradation of the FcRn receptor journal July 2019
ZIKV can infect human term placentas in the absence of maternal factors journal March 2022
The neonatal Fc receptor (FcRn) binds independently to both sites of the IgG homodimer with identical affinity journal January 2015
An in vitro FcRn- dependent transcytosis assay as a screening tool for predictive assessment of nonspecific clearance of antibody therapeutics in humans journal April 2019
Zika Virus Changes Methylation of Genes Involved in Immune Response and Neural Development in Brazilian Babies Born With Congenital Microcephaly journal July 2020
Maternal Zika Virus Infection journal November 2019
Zika infection and the development of neurological defects journal May 2017
The multiple facets of FcRn in immunity journal October 2015
Maternal immunity and antibodies to dengue virus promote infection and Zika virus–induced microcephaly in fetuses journal February 2019
Specificity, cross-reactivity, and function of antibodies elicited by Zika virus infection journal July 2016
Molecular Mechanism for Antibody-Dependent Enhancement of Coronavirus Entry journal December 2019
Human FcRn Is a Two-in-One Attachment-Uncoating Receptor for Echovirus 18 journal August 2022
Adverse fetal and neonatal outcomes in pregnancies with confirmed Zika Virus infection in Rio de Janeiro, Brazil: A cohort study journal January 2021
The Neonatal Fc Receptor (FcRn): A Misnomer? journal July 2019
Zika Induces Human Placental Damage and Inflammation journal September 2020
ZIKV Infection and miRNA Network in Pathogenesis and Immune Response journal October 2021
Entry and Disposition of Zika Virus Immune Complexes in a Tissue Culture Model of the Maternal-Fetal Interface journal February 2021