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Related Concept Videos

Real Time RT-PCR02:57

Real Time RT-PCR

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Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction.
The real-time quantification of the number of amplified products is...
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Related Experiment Video

Updated: Jun 5, 2025

High Throughput MicroRNA Profiling: Optimized Multiplex qRT-PCR at Nanoliter Scale on the Fluidigm Dynamic ArrayTM IFCs
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Multiplex digital PCR for the simultaneous quantification of a miRNA panel.

Florence Busato1, Sylvain Ursuegui2, Jean-François Deleuze1

  • 1Laboratory for Epigenetics & Environment, Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Université Paris-Saclay, Evry, France.

Analytica Chimica Acta
|December 6, 2024
PubMed
Summary

This study introduces a novel multiplexed digital PCR (dPCR) assay for simultaneous microRNA (miRNA) analysis. This sensitive method reliably quantifies miRNA signatures in patient samples for potential clinical applications.

Keywords:
Digital PCRMultiplex analysisPersonalised medicineStem-loop primermicroRNAmicroRNA signature

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • microRNAs (miRNAs) are key gene regulators with potential as disease biomarkers.
  • Individual miRNA detection often lacks sensitivity and specificity for clinical use.
  • miRNA signatures offer improved diagnostic and prognostic value.

Purpose of the Study:

  • To develop and validate a multiplexed digital PCR (dPCR) assay for simultaneous miRNA quantification.
  • To establish a proof-of-concept for analyzing multiple miRNAs concurrently.
  • To assess the feasibility of using dPCR for clinical miRNA signature evaluation.

Main Methods:

  • Utilized a multiplexed dPCR approach with miRNA-specific primers and probes.
  • Optimized experimental parameters for signal detection and modulation.
  • Employed reverse transcription (RT) followed by dPCR for miRNA analysis.

Main Results:

  • Achieved linear quantification across dilution series and high reproducibility.
  • Demonstrated the high sensitivity of dPCR for analyzing patient samples.
  • Confirmed the feasibility of simultaneous analysis of multiple miRNAs.

Conclusions:

  • The developed multiplexed dPCR assay is feasible and reliable for miRNA signature evaluation.
  • This method holds promise for clinical applications in disease diagnosis and monitoring.
  • Multiplexed dPCR enables sensitive and simultaneous quantification of miRNA biomarkers.