Journal
JOURNAL OF INTERNATIONAL MEDICAL RESEARCH
Volume 48, Issue 6, Pages -Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0300060520922339
Keywords
Preeclampsia; trophoblast cells; lncRNA SNHG12; epithelial-mesenchymal transition (EMT); cell cycle; long noncoding RNA
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Objective The deficient placental blood perfusion caused by the attenuated infiltration of trophoblast cells is a key factor in the occurrence of preeclampsia (PE). Furthermore, the long noncoding (lnc)RNA SNHG12 (small nucleolar RNA host gene 12) can promote the proliferation and metastasis of multiple tumor cells. However, whether lncRNA SNHG12 affects proliferation and metastasis of trophoblast cells is unclear. Methods We examined the level of lncRNA SNHG12 in plasma and placenta of patients with PE and constructed trophoblast cells with overexpressed or knocked down SNHG12. CCK-8, wound healing, and Transwell assays were used to detect alterations in proliferation, migration, and invasion of trophoblast cells. Western blotting was used to detect proteins related to the epithelial-mesenchymal transition (EMT), and cell cycle assays clarified cell cycle distribution. Results LncRNA SNHG12 promoted the proliferation, migration, and invasion of trophoblast cells. The expression of matrix metalloproteinase-2 (MMP-2) and MMP-9, beta-catenin, and vimentin were positively correlated with SNHG12, and expression of E-cadherin was negatively correlated with SNHG12. SNHG12 also promoted the transition of trophoblast cells from G(0)/G(1)to S phase. Conclusion Overall, lncRNA SNHG12 promoted the migration and invasion of trophoblast cells by inducing the progression of EMT.
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