Related Experiment Video
Updated: Jan 16, 2026

Characterization of Immune Cell-derived Extracellular Vesicles and Studying Functional Impact on Cell Environment
Published on: June 2, 2020
Extracellular vesicles and mononuclear phagocyte axis: Interactions shaping immune responses
Tulio J Lopera1, Gloria Vásquez1, Mauricio Rojas1,2
1Grupo Inmunología Celular e Inmunogenética, Instituto Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia.
Extracellular vesicles (EVs) modulate mononuclear phagocytes, influencing immune responses in health and disease. This review highlights their therapeutic potential in reprogramming these cells for various pathological conditions.
Area of Science:
- Cell Biology
- Immunology
- Biochemistry
Background:
- Extracellular vesicles (EVs) are key mediators of intercellular communication.
- EVs interact with mononuclear phagocytes, affecting their function.
- Mononuclear phagocytes (monocytes and macrophages) are crucial for innate immunity and tissue homeostasis.
Purpose of the Study:
- To review the role of EVs in modulating monocyte and macrophage profiles and functions.
- To explore how EVs influence immune responses in various physiological and pathological contexts.
- To identify the therapeutic potential of EVs in modulating mononuclear phagocyte activity.
Main Methods:
- Literature review of studies on EVs and mononuclear phagocytes.
- Analysis of factors influencing EV-mononuclear phagocyte interactions (cargo, size, origin, receptors, endocytosis).
- Synthesis of findings across different disease scenarios (homeostasis, infection, inflammation, autoimmunity, cancer).
Main Results:
- EVs shape mononuclear phagocyte phenotypes for homeostasis and regulation.
- EVs induce pro-inflammatory polarization in infectious diseases, systemic inflammation, and autoimmunity.
- EVs contribute to imbalanced pro- and anti-inflammatory responses in cancer development.
Conclusions:
- EVs are critical regulators of mononuclear phagocyte function in diverse settings.
- EVs can be therapeutically exploited to modulate mononuclear phagocytes for treating various diseases.
- Understanding the EV-mononuclear phagocyte axis offers novel therapeutic strategies.
Related Concept Videos
Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Cells of the Innate Immune Response
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytosis of Apoptotic Cells
Normal cells contain receptors that prevent them from being recognized...
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Phagocytosis
Phagocytosis
The objective of phagocytosis is often destruction. Cells use phagocytosis to eliminate unwelcome visitors, like pathogens (e.g., viruses and bacteria). Many immune system cells,...

