Journal
JOURNAL OF MOLECULAR HISTOLOGY
Volume 49, Issue 3, Pages 317-327Publisher
SPRINGER
DOI: 10.1007/s10735-018-9770-7
Keywords
Wnt1; beta-Catenin; Preeclampsia; Trophoblast; Placenta
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Funding
- National Natural Science Foundation [81501285]
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This study aims to elucidate the mechanisms of Wnt/beta-catenin signaling pathway in the development of preeclampsia (PE). The mRNA levels of Wnt1, beta-catenin, c-myc and cyclinD1 were determined by real-time PCR in the placentas. Moreover, the expression levels of Wnt1, beta-catenin, Dickkopf-1 (DKK1) and glycogen synthase kinase 3 beta (GSK-3 beta) proteins were detected by Western blot. Immunohistochemistry was used in placental tissue microarray to localize the expression of Wnt1, beta-catenin, DKK1 proteins in the placentas of two groups. Compared with the control placentas, the mRNA levels of Wnt1, beta-catenin, c-myc and cyclinD1 were decreased in the severe preeclamptic placentas. The Western blot results showed that the expression levels of Wnt1, beta-catenin, and GSK-3 beta proteins were significantly elevated in the control group, while the expression level of DKK1 was significantly decreased. In addition, the staining intensity of Wnt1, beta-catenin were weaker in the placentas of the severe PE group while the staining intensity of DKK1 was significantly stronger in the placentas of the severe PE group. Wnt/beta-catenin signaling pathway may play a significant role in the pathogenesis of PE by regulating the invasion and proliferation of trophoblast.
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