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Related Experiment Videos

A comprehensive hybridization model allows whole HERV transcriptome profiling using high density microarray.

Jérémie Becker1, Philippe Pérot1, Valérie Cheynet1

  • 1Joint research unit, Hospice Civils de Lyon, bioMerieux, Centre Hospitalier Lyon Sud, 165 Chemin du Grand Revoyet, 69310, Pierre-Benite, France.

BMC Genomics
|April 10, 2017
PubMed
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This summary is machine-generated.

Human endogenous retroviruses (HERVs) are linked to diseases and evolution. A new microarray, HERV-V3, offers comprehensive HERV and MaLR coverage for improved disease and gene expression studies.

Area of Science:

  • Genomics
  • Molecular Biology
  • Virology

Background:

  • Human endogenous retroviruses (HERVs) are implicated in various human diseases, including cancers, autoimmune disorders, and neurological conditions.
  • Studying HERVs is challenging due to their repetitive nature, often limiting expression studies to individual loci or broad family trends.
  • Previous research has highlighted the significant impact of HERVs on human evolution and disease etiology.

Purpose of the Study:

  • To introduce HERV-V3, a novel microarray designed for a more refined understanding of HERVs activity.
  • To provide comprehensive coverage of HERVs and mammalian apparent LTR-retrotransposons (MaLRs) at the locus level.
  • To enable the study of HERVs in conjunction with other genomic elements and viral sequences.

Main Methods:

Keywords:
BiostatisticsMicroarrayRepetitive elementsTranscriptomics

Related Experiment Videos

  • Development of a new microarray, HERV-V3, through careful detection and annotation of genomic HERV/MaLR sequences.
  • Implementation of a new hybridization model to optimize probe performance and control cross-reactions.
  • Validation of HERV-V3's analytical performance against commercial Affymetrix arrays.

Main Results:

  • HERV-V3 provides near-complete coverage of HERVs and MaLRs at the locus level.
  • The microarray includes additional repertoires: active LINE-1 elements, lncRNA, 1559 human genes, and common infectious viruses.
  • Expression patterns measured by HERV-V3 on specific loci align with previously reported literature findings.

Conclusions:

  • HERV-V3 facilitates comprehensive analysis of HERVs and MaLRs, offering significant advantages over previous methods.
  • The microarray's extensive coverage and inclusion of multiple repertoires open avenues for identifying enhancers and alternative promoters.
  • HERV-V3 is a valuable tool for biomarker discovery and characterizing gene/HERV modulation during viral infections.