期刊
CELL HOST & MICROBE
卷 21, 期 3, 页码 321-333出版社
CELL PRESS
DOI: 10.1016/j.chom.2017.02.020
关键词
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资金
- Deutsches Zentrum fur Infektionsforschung (DZIF) [TI 07.002]
- Fonds Nationale de la Recherche Luxembourg [AFR 6042498]
- Deutsche Forschungsgemeinschaft (DFG) [AR232/24, GA1575/3, MI476/5]
Pregnant women are at high risk for severe influenza disease outcomes, yet insights into the underlying mechanisms are limited. Here, we present models of H1N1 infection in syngenic and allogenic pregnant mice; infection in the latter mirrors the severe course of 2009 pandemic influenza in pregnant women. We found that the anti-viral immune response in the pregnant host was significantly restricted as compared to the non-pregnant host. This included a reduced type I interferon response as well as impaired migration of CD8(+) T cells into the lung. The multi-faceted failure to mount an anti-viral response in allogenic pregnant mice resulted in a less stringent selective environment that promoted the emergence of 2009 H1N1 virus variants that specifically counteract type I interferon response and mediate increased viral pathogenicity. These insights underscore the importance of influenza vaccination compliance in pregnant women and may open novel therapeutic avenues.
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