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Published on: May 30, 2025
Exosomal Non-Coding RNAs: Diagnostic, Prognostic and Therapeutic Applications in Cancer
Marc D Bullock1,2,3, Andreia M Silva4,5,6, Pinar Kanlikilicer-Unaldi7
1Cancer sciences unit, University of Southampton School of Medicine, Southampton, SO16 6YD, UK. MDBullock@mdanderson.org.
Abstract:
Non-coding RNAs, such as microRNAs and long non-coding RNAs, are important regulatory molecules which are corrupted in cancer, often in a tissue and stage specific manner. Accumulated data suggests that these promising biomarkers, may also form the basis of novel targeted therapeutic strategies. The role of exosomes in cancer development and metastasis pathways is also increasingly well described. These endosome derived extracellular vesicles which are trafficked horizontally between tumor cells, and vertically between tumor cells and the surrounding microenvironment, carry bioactive cargos, which can reprogram the phenotype of recipient cells with important oncogenic consequences. Exosomes are enriched with non-coding RNA content. Within exosomes, non-coding RNAs are secreted into the peripheral circulation and other bodily fluids where they are protected from enzymatic degradation by the surrounding phospholipid membrane. Exosomes are therefore a highly promising source of diagnostic and prognostic material in cancer. Furthermore, as exosomes are natural ncRNA carriers, they may be adapted for the purpose of drug delivery by the introduction of exogenous ncRNAs or by manipulating their endogenous ncRNA content. In the current review, we will explore these highly clinically relevant themes by examining the roles of exosomal ncRNAs in cancer diagnostics, prognostics and therapy.
Insights
Non-coding RNAs (ncRNAs) within exosomes show promise as cancer biomarkers and therapeutic targets. These tiny vesicles protect ncRNAs in bodily fluids, aiding in cancer diagnostics, prognostics, and drug delivery strategies.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Non-coding RNAs (ncRNAs), including microRNAs and long non-coding RNAs, are critical regulators frequently dysregulated in cancer.
- Exosomes, extracellular vesicles derived from endosomes, play significant roles in cancer progression and metastasis.
- Exosomes encapsulate ncRNAs, shielding them from degradation in bodily fluids, making them valuable diagnostic and prognostic indicators.
Purpose of the Study:
- To review the clinical relevance of exosomal ncRNAs in cancer.
- To explore the diagnostic and prognostic potential of exosomal ncRNAs.
- To examine the therapeutic applications of exosomal ncRNAs, including drug delivery.
Main Methods:
- Literature review focusing on exosomal ncRNAs in cancer.
- Analysis of current research on the role of ncRNAs in cancer development and metastasis.
- Examination of exosome biogenesis, cargo loading, and intercellular communication.
Main Results:
- Exosomal ncRNAs are altered in a tissue- and stage-specific manner in various cancers.
- The protective nature of exosomes enhances the stability of ncRNAs in circulation.
- Exosomes can be engineered for targeted delivery of therapeutic ncRNAs.
Conclusions:
- Exosomal ncRNAs represent a promising source for cancer diagnostics and prognostics.
- The natural ncRNA-carrying capacity of exosomes offers potential for novel cancer therapies.
- Targeting exosomal ncRNAs may lead to innovative strategies for cancer treatment.
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