ArticleInternational journal of molecular sciences2020
Downregulation of Placental Amino Acid Transporter Expression and mTORC1 Signaling Activity Contributes to Fetal Growth Retardation in Diabetic Rats.
Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 9 citations in OpenAlex.
- Targeting the GSK-3β/mTOR axis: a novel pharmacological strategy for preeclampsia prevention and treatment.Naunyn-Schmiedeberg's archives of pharmacology · 2026Review
- Article
- Kisspeptin Restores Placental mTOR Signaling and Improves Glucose Homeostasis Mediators Disrupted by Maternal Hypothyroidism in Rats.Acta physiologica (Oxford, England) · 2026Article
- Inducible trophoblast-specific knockdown of mechanistic target of rapamycin impairs placental folate transport in mice.The Journal of nutritional biochemistry · 2026Article
- Lentivirus-Mediated Trophoblast-Specific Deptor Knockdown Increases Transplacental System A and System L Amino Acid Transport and Fetal Growth in Mice.Function (Oxford, England) · 2025Article
- Epigenetic modifications of placenta in women with gestational diabetes mellitus and their offspring.World journal of diabetes · 2024Review
- Placental, Foetal, and Maternal Serum Metabolomic Profiles in Pregnancy-Associated Cancer: Walker-256 Tumour Model in a Time-Course Analysis.International journal of molecular sciences · 2023Article
- Severe Diabetes Induction as a Generational Model for Growth Restriction of Rat.Reproductive sciences (Thousand Oaks, Calif.) · 2023Article
- Human Chorionic Villous Differentiation and Placental Development.International journal of molecular sciences · 2022Review
- Vitamin D stimulates placental L-type amino acid transporter 1 (LAT1) in preeclampsia.Scientific reports · 2022Article
- Identification of tRNA-derived small RNAs and their potential roles in porcine skeletal muscle with intrauterine growth restriction.Frontiers in physiology · 2022Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Alterations in placental transport may contribute to abnormal fetal intrauterine growth in pregnancies complicated by diabetes, but it is not clear whether the placental amino acid transport system is altered in diabetic pregnancies. We therefore studied the changes in the expressions of placental amino acid transporters in a rat model of diabetes induced by streptozotocin, and tested the effects of hyperglycemia on trophoblast amino acid transporter in vitro. Our results showed that the expressions for key isoforms of system L amino acid transporters were significantly reduced in the placentas of streptozotocin-induced diabetic pregnant rats, which was associated with the decreased birthweight in the rats. A decreased placental efficiency and decreased placental mammalian target of rapamycin (mTOR) complex 1 (mTORC1) activity were also found in the rat model. In addition, hyperglycemia in vitro could inhibit amino acid transporter expression and mTORC1 activity in human trophoblast. Inhibition of mTORC1 activity led to reduced amino acid transporter expression in placental trophoblast. We concluded that reduced placental mTORC1 activity during pregnancy resulted in decreased placental amino acid transporter expression and, subsequently, contributed to fetal intrauterine growth restriction in pregnancies complicated with diabetes.
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