Abstract
Angiogenesis during placentation is of great significance in maintaining normal pregnancy. However, the molecular mechanisms of this process are not clear. It has been reported that miR-203 plays a critical role in the development and progression of many tumors but not focused on the relationship between miR-203 and placental angiogenesis. The present study aims to illustrate the correlation between miR-203 and vascular endothelial growth factor (VEGFA)/vascular endothelial growth factor receptors 2 (VEGFR2) in human placenta and human umbilical vein endothelial cells (HUVECs) obtained from 40 samples. Samples of human placenta were collected based on gestation age, which was divided into early preterm (n=10), late preterm (n=12), and term (n = 18). In this work, we demonstrated that the expression of miR-203 decreased significantly in the placenta according to the gestation age, in contrast, the expression of VEGFA and VEGFR2 increased accordingly. In vitro experiments revealed that overexpression of miR-203 not only suppressed the proliferation, migration, invasion, and tube formation of HUVECs but also affected the expression of VEGFA and VEGFR2. Furthermore, inhibition of miR-203 expression showed equally apparent positive effects on HUVECs. In conclusion, our study suggests that miR-203 plays an important role in regulating placental angiogenesis through inhibiting the expression of VEGFA and VEGFR2, thus miR-203 may represent a potential therapeutic target for patients with abnormal formation of blood vessels in the placenta.
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Liu, F., Wu, W., Wu, K. et al. MiR-203 Participates in Human Placental Angiogenesis by Inhibiting VEGFA and VEGFR2 Expression. Reprod. Sci. 25, 358–365 (2018). https://doi.org/10.1177/1933719117725817
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DOI: https://doi.org/10.1177/1933719117725817