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Three transposable elements exhibiting differential expression in pre-eclampsia overlap with enhancer regions.

Laura M Keighley1, Chiemi F Lynch-Sutherland2, Lorissa McDougall1

  • 1Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9054, New Zealand.

Placenta
|September 23, 2024
PubMed
Summary

Transposable elements (TEs) are vital for placental development. Our study found that altered TE expression in pre-eclampsia (PE) suggests TEs may regulate genes, contributing to PE pathogenesis.

Keywords:
PlacentaPlacental developmentPre-eclampsiaTransposable elements

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Area of Science:

  • Genetics
  • Reproductive Biology
  • Genomic Regulation

Background:

  • Transposable elements (TEs) are mobile DNA sequences influencing genome evolution and gene regulation.
  • TEs are implicated in various biological processes, including placental development.
  • Dysregulation of TEs is increasingly recognized in complex diseases.

Purpose of the Study:

  • To investigate the role of transposable element (TE) expression in pre-eclampsia (PE).
  • To identify specific TEs with altered expression in PE placental tissues.
  • To explore the potential regulatory functions of dysregulated TEs in PE pathogenesis.

Main Methods:

  • Utilized RNA-sequencing (RNA-seq) to analyze TE expression profiles in PE and control placental samples.
  • Performed differential expression analysis to identify significantly altered TEs.
  • Mapped the genomic locations of key TEs and assessed their overlap with regulatory elements like enhancers.

Main Results:

  • Identified several differentially expressed transposable elements (TEs) in pre-eclampsia (PE) placental tissues.
  • Discovered that three significant TEs are located within putative enhancer regions.
  • These findings suggest a potential mechanism for TE-mediated gene dysregulation in PE.

Conclusions:

  • Transposable element (TE) dysregulation is associated with pre-eclampsia (PE).
  • TEs located in enhancer regions may play a regulatory role in PE pathogenesis.
  • Further research into TE function is crucial for understanding and potentially treating PE.