Related Experiment Video
Updated: Jan 3, 2026
10:09
Characterization of Immune Cell-derived Extracellular Vesicles and Studying Functional Impact on Cell Environment
Published on: June 2, 2020
7.2K
NeuroEVs: Characterizing Extracellular Vesicles Generated in the Neural Domain
1Department of Neurobiology and Behavior, University of California Irvine, Irvine, California 92697 cdfowler@uci.edu.
Summary
Extracellular vesicles (EVs) mediate intercellular communication by transferring cargo like RNA and proteins. Their role in brain neural networks is complex and challenging to study due to technical limitations.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Intercellular communication occurs via extracellular vesicles (EVs) carrying diverse molecular cargo.
- EVs are found in all biofluids and released by various cell types, including neural cells.
- Understanding EV signaling in the brain is hindered by cellular complexity and biofluid examination challenges.
Purpose of the Study:
- To analyze conceptual and technical limitations in studying EV-mediated neural signaling.
- To discuss the impact of circulating EVs on neural function.
Main Methods:
- Conceptual analysis of current research limitations.
- Review of technical challenges in EV research within the brain.
Main Results:
- Current understanding of EV functional impact on neural networks is limited.
- Technical difficulties impede precise measurement of EV release, uptake, and cargo in neural environments.
Conclusions:
- Further methodological advancements are crucial for elucidating EV roles in neural communication.
- Addressing current limitations will enhance our comprehension of brain function and EV-mediated signaling.
Related Concept Videos
01:36Overview of Exosomes
3.4K
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...
3.4K
01:33Overview of Secretory Vesicles
9.3K
Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
9.3K
01:26Fusion of Secretory Vesicles with the Plasma Membrane
16.4K
Proteins and neurotransmitters in secretory vesicles can be released from a cell upon vesicle docking, priming, and fusion with the plasma membrane. Vesicles are docked and primed in preparation for the quick exocytosis of their contents in response to a stimulus. The fusion process is mainly carried out by a SNAP Receptor or SNARE complex, consisting of synaptobrevin, syntaxin-1, and SNAP-25.
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
16.4K
01:38Intralumenal Vesicles and Multivesicular Bodies
4.6K
Intraluminal vesicles (ILVs) are small vesicles 50-80 nm in diameter formed during the maturation of early endosomes. A specialized endosome containing numerous ILVs is called a multivesicular body (MVB). ILVs contain internalized molecules such as antigens, nucleic acids, proteins, and metabolites. Some of these molecules are released from the MVBs inside exosomes and are transported to other cells. Other MVBs contain molecules that are retained in the ILVs and are later degraded within the...
4.6K