Elevated maternal retinoic acid-related orphan receptor-γt enhances the effect of polyinosinic-polycytidylic acid in inducing fetal loss

T helper 17 (Th17) cells have been suggested to play a crucial role in various complications during pregnancy by participating in maternal immune activation (MIA). To test a possible role for Th17 cells in MIA-mediated abortion, we analyzed transgenic mice overexpressing retinoic acid receptor-relat...

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Detalles Bibliográficos
Autores principales: Tome, Saki, Sasaki, Tetsuya, Takahashi, Satoru, Takei, Yosuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Association for Laboratory Animal Science 2019
Materias:
Original
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6842800/
https://www.ncbi.nlm.nih.gov/pubmed/31178537
http://dx.doi.org/10.1538/expanim.19-0038
Descripción
Sumario:T helper 17 (Th17) cells have been suggested to play a crucial role in various complications during pregnancy by participating in maternal immune activation (MIA). To test a possible role for Th17 cells in MIA-mediated abortion, we analyzed transgenic mice overexpressing retinoic acid receptor-related orphan receptor gamma-t (RORγt), a master regulator of IL-17 producing cell development. These mutant mice (RORγt Tg mice) exhibited a constitutive upregulation of serum IL-17A and decreased E-cadherin expression in cell–cell junctions of placental tissues. Abortion after the administration of a viral-mimicking synthetic double-stranded RNA polyinosinic–polycytidylic acid was more frequent in RORγt Tg mice than wild-type mice. These results suggest that excessive Th17 cell activity alters immune responsiveness and increases the rate of abortion during gestation.

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