Circulating nucleic acids: An analysis of their occurrence in malignancies.

Area of Science:

• Molecular Biology
• Genetics
• Oncology

Background:

• Circulating nucleic acids (CNAs) are small portions of cell nucleic acids found in plasma and serum.
• First discovered in 1948, CNAs have garnered significant research interest for their clinical implications across various diseases.
• Disease-specific genetic aberrations, including mutations, microsatellite alterations, epigenetic modulations, and viral DNA/RNA, have been identified within CNAs.

Purpose of the Study:

• To review the origins and functions of circulating cell-free nucleic acids (CNAs).
• To investigate the role of CNAs in the initiation and progression of various malignancies.
• To propose future research directions for elucidating the mechanisms of CNAs in cancer.

Main Methods:

• Literature review of studies on circulating nucleic acids.
• Analysis of identified genetic aberrations in CNAs.
• Discussion of the potential pathophysiological functions of CNAs.

Main Results:

• CNAs are increasingly utilized as a liquid biopsy for non-invasive disease diagnosis and monitoring.
• CNAs have demonstrated potential in detecting cancer, stroke, myocardial infarction, and other conditions.
• Extensive research exists on the diagnostic utility of CNAs, but their pathophysiological functions remain less understood.

Conclusions:

• Circulating nucleic acids hold significant promise as biomarkers for early disease detection and monitoring.
• Further research is needed to fully understand the functional roles of CNAs in disease pathogenesis, particularly in cancer.
• Elucidating the mechanisms of CNAs could lead to novel therapeutic strategies for cancer initiation and progression.