Circulating Extracellular Vesicles: An Effective Biomarker for Cancer Progression

Area of Science:

• Biochemistry
• Molecular Biology
• Oncology

Background:

• Extracellular vesicles (EVs) are biological nanoparticles carrying biomolecules like DNA, RNA, and proteins, reflecting their cell of origin.
• EVs are recognized for their potential as cancer biomarkers in liquid biopsies due to their association with disease progression and therapeutic response.
• Current limitations in clinical validation and standardization hinder the broader application of EVs beyond laboratory research.

Purpose of the Study:

• To review the role of circulating EVs in various cancers.
• To explore the potential of EVs as cancer biomarkers based on their bioactive molecular payload.
• To discuss the utilization of EVs for refining cancer therapies.

Main Methods:

• Review of existing literature on extracellular vesicles and cancer.
• Analysis of the composition of EV payloads (DNA, RNA, proteins) as potential biomarkers.
• Discussion of the impact of different cancers on circulating EV populations.

Main Results:

• Circulating EVs contain diverse bioactive molecules (small non-coding RNAs, RNAs, DNA, proteins) that can serve as cancer biomarkers.
• EVs mirror the molecular profile of their source, offering insights into cancer status.
• Changes in circulating EV levels correlate with different cancer types.

Conclusions:

• Circulating EVs hold significant potential as non-invasive cancer biomarkers.
• Standardization and clinical validation are essential for translating EV research into clinical practice.
• EVs can aid in monitoring disease progression and guiding personalized cancer therapies.