REVIEW ARTICLE |
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Year : 2020 | Volume
: 4
| Issue : 4 | Page : 249-256 |
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Toll-like receptor-dependent antiviral responses at the maternal–fetal interface
Xiao-Rui Liu, Xiao-Wei Wei, Yi Lin
Department of Obstetrics and Gynecology, Shanghai Key Laboratory of Embryo Original Diseases, School of Medicine, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
Correspondence Address:
Yi Lin Department of Obstetrics and Gynecology, Shanghai Key Laboratory of Embryo Original Diseases, School of Medicine, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai 200030 China
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/2096-2924.305928
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The maternal–fetal interface is a key barrier to protect the fetus from infection. Toll-like receptors (TLRs) at the maternal–fetal interface are involved in antiviral responses. TLRs are expressed in both maternal decidua and fetal trophoblasts. Virus-induced activation of TLR signaling pathways triggers the release of interferon-related antiviral molecules and other inflammatory cytokines and/or chemokines by the host innate immune system, which may disrupt immune tolerance at the maternal–fetal interface and lead to pregnancy complications. In this review, we summarize the state of knowledge on the most common viral infections during pregnancy, antiviral TLR responses at the maternal–fetal interface, and TLR-associated pregnancy complications.
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