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Using Nanoplasmon-Enhanced Scattering and Low-Magnification Microscope Imaging to Quantify Tumor-Derived Exosomes
Published on: May 24, 2019
Exosomes: from basic research to clinical diagnostic and therapeutic applications in cancer
Salomé Araujo-Abad1, José Marcos Berna2,3, Elena Lloret-Lopez2,3
1Cancer Research Group, Faculty of Engineering and Applied Sciences, Universidad de Las Américas, Quito, 170124, Ecuador.
Abstract:
Cancer continues to pose a global threat despite potent anticancer drugs, often accompanied by undesired side effects. To enhance patient outcomes, sophisticated multifunctional approaches are imperative. Small extracellular vesicles (EVs), a diverse family of naturally occurring vesicles derived from cells, offer advantages over synthetic carriers. Among the EVs, the exosomes are facilitating intercellular communication with minimal toxicity, high biocompatibility, and low immunogenicity. Their tissue-specific targeting ability, mediated by surface molecules, enables precise transport of biomolecules to cancer cells. Here, we explore the potential of exosomes as innovative therapeutic agents, including cancer vaccines, and their clinical relevance as biomarkers for clinical diagnosis. We highlight the cargo possibilities, including nucleic acids and drugs, which make them a good delivery system for targeted cancer treatment and contrast agents for disease monitoring. Other general aspects, sources, and the methodology associated with therapeutic cancer applications are also reviewed. Additionally, the challenges associated with translating exosome-based therapies into clinical practice are discussed, together with the future prospects for this innovative approach.
Insights
Exosomes, a type of small extracellular vesicle (EV), show promise for targeted cancer therapy and diagnosis due to their natural biocompatibility and targeting capabilities. Further research is needed to overcome challenges for clinical application.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Oncology
Background:
- Cancer remains a significant global health challenge, with current treatments often causing side effects.
- There is a critical need for advanced, multifunctional therapeutic strategies to improve patient outcomes.
Purpose of the Study:
- To explore the therapeutic potential of exosomes as drug delivery systems and cancer vaccines.
- To evaluate the clinical relevance of exosomes as biomarkers for cancer diagnosis and monitoring.
- To review exosome sources, cargo, and methodologies for cancer applications.
Main Methods:
- Review of existing literature on exosome biology and therapeutic applications in cancer.
- Analysis of exosome surface molecules for tissue-specific targeting.
- Discussion of exosome cargo loading techniques (nucleic acids, drugs).
Main Results:
- Exosomes offer advantages over synthetic carriers, including high biocompatibility, low immunogenicity, and inherent targeting abilities.
- Exosomes can be engineered to deliver therapeutic payloads (drugs, nucleic acids) and serve as contrast agents.
- Exosomes show potential as cancer vaccines and diagnostic biomarkers.
Conclusions:
- Exosomes represent a promising platform for targeted cancer therapy, diagnostics, and monitoring.
- Challenges in exosome production, standardization, and clinical translation must be addressed.
- Future prospects for exosome-based cancer treatments are significant.
