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Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles
Published on: January 26, 2024
Circular RNA expression profile and competing endogenous RNA regulatory network in preeclampsia
Yuan Yuan1, Yunhui Gong2, Lu Zhong1
1Department of Gynecology and Obstetrics, The 3rd Affiliated Hospital of Chengdu Medical College, Pidu District People's Hospital, Chengdu, China.
Insights
This study explored circular RNAs (circRNAs) in preeclampsia (PE), identifying key circRNA-miRNA-mRNA pathways like hsa_circRNA_0001687/hsa-miR-532-3p/MMP14/AXL that may contribute to PE's pathology.
Area of Science:
- Genomics
- Molecular Biology
- Obstetrics
Background:
- Preeclampsia (PE) is a pregnancy-specific disorder linked to significant maternal and neonatal complications.
- Understanding the molecular mechanisms underlying PE is crucial for improving maternal and neonatal outcomes.
Purpose of the Study:
- To investigate the role of circular RNAs (circRNAs) in the pathogenesis of preeclampsia.
- To identify potential diagnostic biomarkers and therapeutic targets for PE.
Main Methods:
- Downloaded and analyzed mRNA, miRNA, and circRNA expression profiles from the GEO database for preeclampsia and normal pregnancy samples.
- Utilized bioinformatics to identify differentially expressed genes (DEGs) and construct a competing endogenous RNA (ceRNA) network.
- Validated expression profiles using RT-qPCR and existing GEO datasets.
Main Results:
- Identified 1645 differentially expressed mRNAs (DEmRNAs), 41 DEmiRNAs, and 2432 DEcircRNAs.
- Constructed a ceRNA network involving 3 circRNAs, 3 miRNAs, and 63 mRNAs.
- Expression validation results were consistent with the integrated bioinformatics analysis.
Conclusions:
- Speculated that specific circRNA-miRNA-mRNA axes, including hsa_circRNA_0001687/hsa-miR-532-3p/MMP14/AXL, hsa_circ_0001513/hsa-miR-188-5p/HMGCS1, and hsa_circ_0001513/hsa_circ_0001329/hsa-miR-760/MAP1LC3B, may play a role in the pathological processes of preeclampsia.
- These findings suggest potential novel molecular targets for preeclampsia intervention.
Introduction:
Preeclampsia (PE) is a pregnancy specific disorder which is significantly associated with maternal and neonatal morbidity and mortality. This study aimed to explore the potential role of circRNAs in PE.
Methods:
The mRNA, miRNA, and circRNA expression profiles of PE were downloaded from GEO database. Bioinformatics analysis was conducted to characterize differentially expressed mRNAs (DEmRNAs), miRNAs (DEmiRNAs) and circRNAs (DEcircRNAs) in the placental tissues of women with PE versus normal pregnancies. Then, expression validation of the mRNAs, miRNAs and circRNAs were performed with RT-qPCR and GEO datasets.
Results:
A total of 1645 DEmRNAs, 41 DEmiRNAs and 2432 DEcircRNAs were acquired. The ceRNA network contained 4 circRNA-miRNA pairs and 64 miRNA-mRNA pairs, including 3 circRNAs, 3 miRNAs, and 63 mRNAs. Validation in RT-qPCR and GEO were generally in line with our integrated analysis results.
Discussion:
In conclusion, we speculated that hsa_circRNA_0001687/hsa-miR-532-3p/MMP14/AXL, hsa_circ_0001513/hsa-miR-188-5p/HMGCS1 and hsa_circ_0001513/hsa_circ_0001329/hsa-miR-760/MAP1LC3B axes may participate in the pathological process of PE.
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