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Influenza A virus infection disrupts the function of syncytiotrophoblast cells and contributes to adverse pregnancy outcomes.
Wang, Jiao; Liu, Wenyu; Zhuang, Yichao; Yang, Jiaxin; Zhao, Yetian; Hong, Aihui; Du, Jingjing; Kong, Huihui; Wang, Jingfei; Jiang, Yongping; Wang, Yan.
Afiliación
  • Wang J; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
  • Liu W; State Key Laboratory of Animal Disease Control and Prevention, Harbin Veterinary Research Institute, CAAS, Harbin, China.
  • Zhuang Y; State Key Laboratory of Animal Disease Control and Prevention, Harbin Veterinary Research Institute, CAAS, Harbin, China.
  • Yang J; State Key Laboratory of Animal Disease Control and Prevention, Harbin Veterinary Research Institute, CAAS, Harbin, China.
  • Zhao Y; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
  • Hong A; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
  • Du J; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
  • Kong H; State Key Laboratory of Animal Disease Control and Prevention, Harbin Veterinary Research Institute, CAAS, Harbin, China.
  • Wang J; State Key Laboratory of Animal Disease Control and Prevention, Harbin Veterinary Research Institute, CAAS, Harbin, China.
  • Jiang Y; State Key Laboratory of Animal Disease Control and Prevention, Harbin Veterinary Research Institute, CAAS, Harbin, China.
  • Wang Y; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
J Med Virol ; 96(6): e29687, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38783821
ABSTRACT
Pregnancy heightens susceptibility to influenza A virus (IAV) infection, thereby increasing the risk of severe pneumonia and maternal mortality. It also raises the chances of adverse outcomes in offspring, such as fetal growth restriction, preterm birth, miscarriage, and stillbirth in offsprings. However, the underlying mechanisms behind these effects remain largely unknown. Syncytiotrophoblast cells, crucial in forming the placental barrier, nutrient exchange and hormone secretion, have not been extensively studied for their responses to IAV. In our experiment, we used Forskolin-treated BeWo cells to mimic syncytiotrophoblast cells in vitro, and infected them with H1N1, H5N1 and H7N9 virus stains. Our results showed that syncytiotrophoblast cells, with their higher intensity of sialic acid receptors, strongly support IAV infection and replication. Notably, high-dose viral infection and prolonged exposure resulted in a significant decrease in fusion index, as well as gene and protein expression levels associated with trophoblast differentiation, ß-human chorionic gonadotropin secretion, estrogen and progesterone biosynthesis, and nutrient transport. In pregnant BALB/c mice infected with the H1N1 virus, we observed significant decreases in trophoblast differentiation and hormone secretion gene expression levels. IAV infection also resulted in preterm labor, fetal growth restriction, and increased maternal and fetal morbidity and mortality. Our findings indicate that IAV infection in syncytiotrophoblastic cells can result in adverse pregnancy outcomes by altering trophoblast differentiation, suppressing of ß-hCG secretion, and disrupting placental barrier function.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Trofoblastos / Resultado del Embarazo / Infecciones por Orthomyxoviridae / Subtipo H1N1 del Virus de la Influenza A / Ratones Endogámicos BALB C Límite: Animals / Female / Humans / Pregnancy Idioma: En Revista: J Med Virol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Trofoblastos / Resultado del Embarazo / Infecciones por Orthomyxoviridae / Subtipo H1N1 del Virus de la Influenza A / Ratones Endogámicos BALB C Límite: Animals / Female / Humans / Pregnancy Idioma: En Revista: J Med Virol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos