Journal
BIOLOGY OF REPRODUCTION
Volume 103, Issue 3, Pages 471-486Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/biolre/ioaa070
Keywords
placenta; mTOR signaling; fetal development; intrauterine growth restriction; macrosomia
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Funding
- National Natural Science Foundation of China [81671463]
- Key Research and Development Plan of Shaanxi Province [2017ZDCXL-SF-02-03]
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Fetal growth restriction and overgrowth are common obstetrical complications that result in adverse perinatal outcomes and long-term health risks later in life, including neurodevelopmental dysfunction and adult metabolic syndrome. The placenta plays a critical role in the nutrition transfer from mother to fetus and even exerts adaptive mechanism when the fetus is under poor developmental conditions. The mammalian/mechanistic target of rapamycin (mTOR) signaling serves as a critical hub of cell growth, survival, and metabolism in response to nutrients, growth factors, energy, and stress signals. Placental mTOR signaling regulates placental function, including oxygen and nutrient transport. Therefore, placental mTOR signaling is hypothesized to have a positive relationship with fetal growth. In this review, we summarize that most studies support the current evidence that there is connection between placental mTOR signaling and abnormal fetal growth; however, but more studies should be performed following a vigorous and unanimous method for assessment to determine placental mTOR activity.
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