Exosome-Based Cell-Cell Communication in the Tumor Microenvironment.
Joana Maia1, Sergio Caja1, Maria Carolina Strano Moraes1
1Systems Oncology Group, Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal.
Frontiers in Cell and Developmental Biology
|March 9, 2018
Summary
Tumor cells communicate via exosomes, which are tiny vesicles carrying biomolecules. These exosomes influence tumor growth, invasion, and metastasis by interacting with both tumor and non-tumor cells.
Area of Science:
- Cell Biology
- Oncology
- Biochemistry
Background:
- Tumors are complex networks involving cell-cell communication.
- Tumor microenvironments are shaped by interactions between transformed and non-transformed cells.
- Cellular communication occurs through secreted factors and direct contact.
Purpose of the Study:
- To review the role of exosomes in cell-cell communication within the tumor microenvironment.
- To highlight how exosomes mediate interactions between tumor and associated cells.
- To discuss the implications of exosome-mediated communication in tumor initiation and metastasis.
Main Methods:
- Literature review of current research on exosomes and cancer.
- Analysis of exosome biogenesis, cargo, and intercellular transfer mechanisms.
- Examination of exosome involvement in tumor growth, angiogenesis, inflammation, and immune response.
Main Results:
- Exosomes are key mediators of intercellular communication, transferring biomolecules like proteins, RNA, and DNA.
- Tumor-derived and non-tumor-derived exosomes influence tumor progression, invasion, angiogenesis, and immune modulation.
- Exosomes are promising biomarkers for liquid biopsies due to their presence in circulation.
Conclusions:
- Exosomes play a critical role in establishing tumor microenvironments that promote tumor initiation and metastasis.
- Understanding exosome function is crucial for developing novel cancer therapies and diagnostic tools.
- Exosome-mediated communication represents a significant area of research in oncology.
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