The expression and clinical significance of three lncRNAs in patients with a missed abortion

Luo,Mei; Xiao,Huan; Wang,Liqiu; Zhao,Juan; Gao,Jie; Ma,Wei

doi:10.3892/etm.2020.9440

The expression and clinical significance of three lncRNAs in patients with a missed abortion

Authors:
- Mei Luo
- Huan Xiao
- Liqiu Wang
- Juan Zhao
- Jie Gao
- Wei Ma
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Affiliations: Central Laboratory, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, P.R. China, Department of Gynecology and Obstetrics, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, P.R. China, Department of Laboratory Medicine, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, P.R. China
Published online on: November 4, 2020 https://doi.org/10.3892/etm.2020.9440
Article Number: 8
Copyright: © Luo et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Missed abortions are common complications that occur in early pregnancy, and impaired trophoblast functions have been indicated to be associated with their pathogenesis. The long noncoding RNAs (lncRNAs) Metastasis Associated Lung Adenocarcinoma Transcript 1 (MALAT1), HOX Transcript Antisense RNA (HOTAIR) and Maternally expressed gene 3 (MEG3) have been demonstrated to serve a crucial regulatory role in the mobility of trophoblast cells and embryo implantation. However, the expression profile and role of each of these three lncRNAs in patients with a missed abortion remain unclear. The expression of MALAT1, HOTAIR, and MEG3 in decidual and villous tissues from 26 patient exhibiting a missed abortion and 26 healthy controls was detected using reverse‑transcription quantitative PCR. Serum TNF‑α, IL‑1β, IL‑6 and IL‑10 levels were measured using ELISA, and serum estradiol and progesterone levels were measured with electrochemiluminescence immunoassays. Additionally, the correlations between lncRNA expression and the levels of cytokines and hormones were further analyzed. MALAT1, HOTAIR and MEG3 expression was significantly higher in villous tissues of patients exhibiting a missed abortion compared with healthy controls. MALAT1 expression was higher in decidual tissues of patients exhibiting a missed abortion compared with healthy controls. Serum IL‑10 levels were significantly lower in patients exhibiting a missed abortion compared with healthy controls. Serum estradiol and progesterone levels were significantly lower in the group of patients exhibiting a missed abortion compared with the control group. Furthermore, MALAT1 expression in villous tissue was inversely related to serum progesterone levels. The results of the current study suggest that MALAT1 may be associated with the pathogenesis of missed abortions.

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