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Published online: 2022-08-01

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LncRNA-loc391533 is involved in the progression of preeclampsia through VEGF

Jun Xiong1, Xuan Jin2, Kangxiang Xu3, Bingqi Wu3, Yuqi Xu3, Dong Ruan3, Xiaoju He1


Objectives: Preeclampsia (PE) is a leading cause of maternal death worldwide, which is one of the most major pregnancy complications. The effects of vascular endothelial growth factor (VEGF) and lncRNA-loc391533 on PE were evaluated in the present study.

Material and methods: Expression of VEGF in pregnant women with PE was determined using immunohistochemical and enzyme linked immunosorbent assay (ELISA). The effects of lncRNA-loc391533 knockdown and overexpression on VEGF expression was detected using quantitative polymerase chain reaction (qPCR) and western blotting. Loss/gain-of-function assays were performed to evaluate the role of lncRNA-loc391533 on proliferation, cell cycle and migration of trophoblasts HTR-8/SVneo cells.

Results: We found that VEGF and its receptor VEGFR1/2 were low expressed in PE. Knockdown of lncRNA-loc391533 enhanced VEGF expression, while overexpression of lncRNA-loc391533 downregulated VEGF. Moreover, lncRNA-loc391533 was required for proliferation and migration of HTR-8/SVneo cells.

Conclusions: In conclusion, our findings emphasized that lncRNA-loc391533 exhibited a critical role in progression of PE through VEGF, which might as a novel therapeutic target for PE treatment.

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