Circulating MicroRNA Quantification Using DNA-binding Dye Chemistry and Droplet Digital PCR

Manuela Ferracin; Irene Salamon; Laura Lupini; Elena Miotto; Silvia Sabbioni; Massimo Negrini

doi:10.3791/54102

Di circolazione MicroRNA Quantificazione Utilizzando DNA-binding Dye Chimica e di gocce Digital PCR

JoVE Journal
Bioengineering

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JoVE Journal Bioengineering

Circulating MicroRNA Quantification Using DNA-binding Dye Chemistry and Droplet Digital PCR

Di circolazione MicroRNA Quantificazione Utilizzando DNA-binding Dye Chimica e di gocce Digital PCR

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07:37 min

June 26, 2016

DOI: 10.3791/54102-v

Manuela Ferracin¹, Irene Salamon², Laura Lupini², Elena Miotto², Silvia Sabbioni³, Massimo Negrini⁴

¹Department of Experimental, Diagnostic and Specialty Medicine - DIMES,University of Bologna, ²Department of Morphology, Surgery and Experimental Medicine,University of Ferrara, ³Department of Life Sciences and Biotechnology,University of Ferrara, ⁴Department of Morphology, Surgery and Experimental Medicine and Laboratory for Technologies of Advanced Therapies (LTTA),University of Ferrara

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Overview

This article describes a sensitive and accurate method for quantifying circulating microRNAs in biological fluids using droplet digital PCR technology. The technique is particularly beneficial for identifying diagnostic and prognostic biomarkers in cancer.

Key Study Components

Area of Science

Neuroscience
Biology
Biomarkers

Background

Circulating microRNAs are important in cancer diagnostics.
Current methods may lack sensitivity for less abundant microRNAs.
Droplet digital PCR offers high sensitivity without the need for reference genes.
Identifying early-stage cancer can improve patient outcomes.

Purpose of Study

To develop a method for quantifying microRNAs in plasma or serum.
To enhance the detection of biomarkers for cancer diagnosis.
To provide a reliable technique for researchers in the biomarker field.

Methods Used

Dye-based chemistry for microRNA quantification.
Droplet digital PCR technology for high sensitivity.
Analysis of biological fluids such as plasma and serum.
Evaluation of diagnostic and prognostic potential in cancer.

Main Results

The method demonstrates high sensitivity for quantifying microRNAs.
It can detect less abundant microRNAs effectively.
Potential applications in early-stage cancer identification.
Supports advancements in cancer diagnostics and biomarker research.

Conclusions

This method provides a valuable tool for researchers in the biomarker field.
It enhances the ability to identify early-stage cancer through microRNA analysis.
The technique's high sensitivity is a significant advantage over traditional methods.

Frequently Asked Questions

What are circulating microRNAs?

Circulating microRNAs are small RNA molecules found in biological fluids that can serve as biomarkers for various diseases, including cancer.

How does droplet digital PCR work?

Droplet digital PCR partitions a sample into thousands of droplets, allowing for precise quantification of target DNA or RNA molecules.

What is the significance of high sensitivity in this method?

High sensitivity allows for the detection of low-abundance microRNAs, which is crucial for early cancer diagnosis.

Can this method be used for other diseases?

While this study focuses on cancer, the method may also be applicable to other diseases where microRNAs are relevant biomarkers.

What are the implications of identifying early-stage cancer?

Identifying early-stage cancer can lead to timely interventions and improved patient outcomes.

Is a reference gene required for this method?

No, this method does not require an endogenous reference gene, simplifying the quantification process.

Viene descritto un metodo sensibile e accurato per la quantificazione di microRNA privi di cellule utilizzando una chimica basata su coloranti e una tecnologia PCR digitale a goccioline.

L'obiettivo generale di questa procedura è quantificare i microRNA circolanti e i fluidi biologici, come il plasma o il siero, utilizzando la tecnologia PCR digitale a goccioline. Il metodo può aiutare a rispondere alle domande nel campo dei biomercati. Identificando il cancro diagnostico e prognostico, biomarketing.

Il vantaggio principale di questa tecnica è l'elevata sensibilità. Può essere utilizzato per quantificare anche i microRNA meno abbondanti senza richiedere un gene di riferimento androgino. Le implicazioni di questo metodo si estendono alla diagnostica del cancro perché ha il potenziale per identificare le persone con cancro in fase iniziale.

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