Abstract
Little is known about the contribution of virus-specific and cross-reacting antibodies (Abs) or the cellular immune response generated by a primary dengue (DENV) infection on the course of a secondary zika (ZIKV) infection in vivo. Here we show that the length of time between DENV/ZIKV infections has a qualitative impact on controlling early ZIKV replication. Depletion of DENV2-specific Abs in sera confirmed that those type-specific Abs do not contribute to ZIKV control. We show that the magnitude and durability of the neutralizing antibodies (nAbs) induced by a secondary ZIKV infection is modest compared to the response induced after a secondary heterologous DENV infection. Our in vivo results are showing a complex interplay between the cellular and innate immune responses characterized by a high frequency of plasmacytoid dendritic cells (pDC) correlating with an increase in the frequency of DENV antigen specific T cells and a significant control of ZIKV replication which is time dependent. Taken together, our results suggest that early after ZIKV infection other mechanisms such as the innate and cellular immune responses may play a predomi-nant role in controlling ZIKV replication. Regardless of the time elapsed between infections there was no evidence of in vivo antibody-dependent enhancement (ADE) of ZIKV by DENV immunity. These findings have pivotal implications while interpreting ZIKV pathogenesis in flavivirus-experimented populations, diagnostic results interpretation and vaccine designs and schedules among others.
| Original language | English |
|---|---|
| Article number | e0008285 |
| Pages (from-to) | 1-28 |
| Number of pages | 28 |
| Journal | PLoS Neglected Tropical Diseases |
| Volume | 14 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2020 |
Bibliographical note
Publisher Copyright:© 2020 Serrano-Collazo et al.
Funding
This work received support by Grants 2 P40 OD012217 and 2U42OD021458-15 to MIM and CAS (ORIP, OD, NIH), and R25GM061838 to C.S.-C. Also, partial support was provided by Grant K22AI104794 to JDB (NIAID) and partially used resources that were supported by the Southwest National Primate Research Center grant P51 OD011133 from the Office of Research Infrastructure Programs, National Institutes of Health to LDG. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
| Funders | Funder number |
|---|---|
| NIH Office of Research Infrastructure Programs | |
| Southwest National Primate Research Center | P51 OD011133 |
| National Institutes of Health (NIH) | R25GM061838 |
| National Institutes of Health (NIH) | |
| NIH Office of the Director | U42OD021458 |
| NIH Office of the Director | |
| National Institute of Allergy and Infectious Diseases | K22AI104794 |
| National Institute of Allergy and Infectious Diseases |
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Infectious Diseases