Related Experiment Video
Updated: Jan 22, 2026

09:59
Preparation of Exosomes for siRNA Delivery to Cancer Cells
Published on: December 5, 2018
26.0K
Exosomes and Their Role in Cancer Progression
Mitsuhiko Osaki1,2, Futoshi Okada1,2
1Division of Pathological Biochemistry, Department of Biomedical Sciences, School of Life Science, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Yonago Acta Medica
|July 20, 2019
Summary
Exosomes, small vesicles secreted by cells, play a role in cell communication and tissue balance. Their involvement in cancer progression highlights their potential for new diagnostic and therapeutic strategies.
Area of Science:
- Cell Biology
- Biochemistry
- Oncology
Background:
- Exosomes are nanoscale extracellular vesicles (approx. 100 nm) enclosed by a lipid bilayer.
- They originate from the endocytic pathway as intraluminal membrane vesicles (ILVs) within multivesicular bodies (MVBs).
- Exosomes are secreted via the fusion of MVBs with the plasma membrane, releasing their contents into the extracellular space.
Purpose of the Study:
- To explore the function of exosomes in intercellular communication.
- To investigate the role of exosomes in maintaining tissue homeostasis.
- To understand the involvement of exosomes in cancer progression and their potential as diagnostic and therapeutic targets.
Main Methods:
- Characterization of exosome biogenesis and secretion pathways.
- Analysis of molecular cargo within exosomes.
- Investigating exosome-mediated cell-cell communication.
- Studying the impact of cancer-derived exosomes on tumor development.
Main Results:
- Exosomes facilitate intercellular communication through the transfer of biomolecules.
- They contribute to the maintenance of tissue homeostasis.
- Exosomes secreted by cancer cells actively promote tumor progression.
Conclusions:
- Exosomes are critical mediators of cell-cell communication with implications for tissue health.
- Understanding the role of exosomes in malignant cancers is crucial for developing novel diagnostic and therapeutic approaches.
Related Concept Videos
mTOR Signaling and Cancer Progression
4.7K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
4.7K
Overview of Exosomes
3.6K
Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
3.6K
Tumor Progression
7.2K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
7.2K
The Role of Culture
362
Culture plays a crucial role in shaping self-identity and influencing thought and behavior, a foundational interest within social psychology. The multicultural perspective recognizes that individuals do not exist in a vacuum; instead, their experiences, perceptions, and actions are deeply influenced by the intersecting dimensions of their cultural, ethnic, and social group affiliations.Cultural Influence on Self-Identity and Social PerceptionCultural frameworks inform how individuals define...
362
Role of Septins
2.1K
Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
2.1K
Role of ER in the Secretory Pathway
7.0K
Eukaryotic cells have a special pathway that enables communication between various intracellular membrane-bound compartments and also with the extracellular environment. This pathway is termed as the secretory pathway.
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
7.0K

