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A Standardized Liquid Biopsy Preanalytical Protocol for Downstream Circulating-Free DNA Applications

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Cell-Free Nucleic Acids.

¹Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary.

International Journal of Molecular Sciences

|November 14, 2019

Summary

Cell-free DNA (cfDNA), discovered in 1948, is present in blood sera. This biomarker has since been detected in various bodily fluids, showing its potential in diagnostics.

Area of Science:

Biochemistry
Molecular Biology
Genetics

Background:

Cell-free DNA (cfDNA) was first identified in human blood sera in 1948 by Mandel and Metais.
Initially observed in cancer patients, cfDNA presence was later confirmed in healthy individuals and various bodily fluids.
The study of cfDNA has evolved significantly since its discovery, revealing its widespread biological relevance.

Discussion:

The presence of cfDNA in sera suggests its release from various cellular processes, including apoptosis and necrosis.
Understanding cfDNA origins and dynamics is crucial for its application in non-invasive diagnostics.
Further research is needed to fully elucidate the complex mechanisms governing cfDNA release and clearance.

Key Insights:

Cell-free DNA (cfDNA) is a naturally occurring substance found in blood and other bodily fluids.

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Its detection in biological samples has opened avenues for non-invasive diagnostic and prognostic applications.

The historical discovery of cfDNA in 1948 marked the beginning of a new era in molecular diagnostics.

Outlook:

Future research will likely focus on refining cfDNA analysis techniques for earlier and more accurate disease detection.
The potential of cfDNA as a biomarker for various conditions, including cancer, prenatal testing, and transplant monitoring, is immense.
Continued investigation into cfDNA biology promises to unlock novel therapeutic strategies and diagnostic tools.