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MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
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MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
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Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles
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Dysregulated circulating miRNAs in preeclampsia.

Carine Munaut1, Linda Tebache2, Silvia Blacher1

  • 1Laboratory of Tumor and Development Biology, GIGA-R, University of Liège, B-4000 Liège, Belgium.

Biomedical Reports
|January 21, 2017
PubMed
Summary

Circulating microRNAs (miRNAs) like miR-210-3p, miR-210-5p, miR-1233-3p, and miR-574-5p are elevated in preeclampsia (PE) patients. These specific miRNAs may play a role in PE

Keywords:
RT-qPCRlogistic regression modelmiRNAspreeclampsia

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Area of Science:

  • Obstetrics and Gynecology
  • Molecular Biology
  • Biochemistry

Background:

  • Preeclampsia (PE) is a serious pregnancy complication with unknown molecular causes.
  • MicroRNAs (miRNAs) are increasingly recognized for their role in PE pathogenesis.
  • Analyzing serum miRNAs could elucidate PE's underlying mechanisms.

Purpose of the Study:

  • To identify differentially expressed circulating miRNAs in preeclampsia (PE) patients compared to healthy pregnant controls.
  • To investigate the potential role of specific miRNAs in the pathophysiology of PE.

Main Methods:

  • Retrospective study comparing serum samples from 23 PE patients and 44 controls.
  • Quantification of 17 pre-selected circulating miRNAs using reverse transcription quantitative polymerase chain reaction (RT-qPCR).
  • Logistic regression analysis to assess the diagnostic power of identified miRNAs.

Main Results:

  • Four miRNAs (miR-210-3p, miR-210-5p, miR-1233-3p, miR-574-5p) showed significantly higher levels in PE patients' serum (P<0.05).
  • A combination of miR-210-5p and miR-574-5p achieved an area under the curve of 0.7223 for discriminating PE.
  • These findings suggest a potential pathophysiological role for these circulating miRNAs in PE.

Conclusions:

  • Differential expression of miR-210-3p, miR-210-5p, miR-1233-3p, and miR-574-5p in serum confirms their association with preeclampsia.
  • Circulating miRNAs represent potential biomarkers for preeclampsia.
  • Further research is warranted to explore the precise role of these miRNAs in PE development.