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The Clinical Application of Tumor Treating Fields Therapy in Glioblastoma
Published on: April 16, 2019
Progress in the application of exosomes as therapeutic vectors in tumor-targeted therapy
Xudong Xie1, Hongpei Wu1, Mei Li2
1Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China.
Abstract:
Cancer is the second leading cause of death in the world with a high annual incidence level. Researchers have been working on developing treatments for cancer. Targeted therapy is an emerging treatment modality that is more novel than surgery, radiotherapy and chemotherapy. In targeted therapy, exogenous nanoscale microparticles are applied as carriers for drugs or genes. However, conventional particles have certain limitations attributed to non-specific cytotoxicity, biocompatibility and low delivery efficacy in individual therapeutic vector systems. Exosomes are small vesicles secreted by various cells that consist of lipid bilayer membranes without organelles. Due to their excellent biocompatibility, exosomes have received increased attention in recent years for targeted therapy applications. This review briefly introduces the current status of targeted therapy, and exosomes are introduced by their structural characteristics, physiological effects and separation methods. This review also discusses the applications of engineered exosomes derived from different cells in the field of targeted therapies and compares the two-way regulation of mesenchymal stromal cell-derived exosomes in tumor therapy.
Insights
Targeted cancer therapy utilizes engineered exosomes, natural nanoscale vesicles, to overcome limitations of conventional drug delivery systems. These biocompatible carriers show promise for improved cancer treatment efficacy.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Oncology
Background:
- Cancer remains a leading global cause of death, necessitating advanced treatment strategies.
- Conventional targeted therapy faces challenges including cytotoxicity and low delivery efficiency.
- Exosomes, natural nanoscale vesicles, offer superior biocompatibility and are emerging as novel therapeutic carriers.
Purpose of the Study:
- To review the current landscape of targeted cancer therapy.
- To introduce exosomes, detailing their structure, function, and isolation.
- To explore the application of engineered exosomes in targeted therapies, focusing on mesenchymal stromal cell-derived exosomes.
Main Methods:
- Literature review of targeted therapy and exosome research.
- Analysis of exosome structural characteristics and physiological roles.
- Discussion of engineered exosome applications and comparative analysis of mesenchymal stromal cell-derived exosomes.
Main Results:
- Exosomes possess inherent biocompatibility, addressing limitations of synthetic nanoparticles.
- Engineered exosomes demonstrate potential for enhanced drug and gene delivery in cancer.
- Mesenchymal stromal cell-derived exosomes exhibit unique two-way regulatory effects in tumor therapy.
Conclusions:
- Engineered exosomes represent a promising platform for next-generation targeted cancer therapies.
- Further research into exosome engineering and clinical translation is warranted.
- Exosomes offer a biocompatible and efficient alternative for cancer treatment delivery.
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