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Related Concept Videos

Overview of Exosomes01:36

Overview of Exosomes

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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...
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Intralumenal Vesicles and Multivesicular Bodies01:38

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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...
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Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
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Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
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Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
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Updated: May 30, 2025

Preparation of Exosomes for siRNA Delivery to Cancer Cells
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Exosome: an overview on enhanced biogenesis by small molecules.

Amir Bavafa1,2, Maryam Izadpanahi1,2, Elham Hosseini1,2

  • 1Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

Naunyn-Schmiedeberg'S Archives of Pharmacology
|January 25, 2025
PubMed
Summary

Small molecules enhance exosome production, improving their therapeutic potential for diseases. This breakthrough advances cell-free therapies for cancer, neuroprotection, and regenerative medicine.

Keywords:
BiogenesisClinical applicationsExosomesRegenerative medicineSmall molecule

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Area of Science:

  • Extracellular vesicle research
  • Cellular biology
  • Biotechnology

Background:

  • Exosomes, crucial for intercellular communication, show therapeutic promise but face limited clinical use due to low yield.
  • Their biogenesis and secretion pathways are key bottlenecks for therapeutic applications.

Purpose of the Study:

  • To explore the role of small molecules in enhancing exosome biogenesis and secretion.
  • To highlight the underlying mechanisms of small molecule-mediated exosome production.
  • To discuss emerging clinical applications of enhanced exosomes.

Main Methods:

  • Review of recent studies on small molecules modulating exosome production pathways.
  • Analysis of ESCRT-dependent and ESCRT-independent mechanisms.
  • Examination of therapeutic outcomes and translational opportunities.

Main Results:

  • Small molecules significantly enhance exosome yield, functionality, and therapeutic effects.
  • These molecules target critical pathways for optimized exosome production.
  • Enhanced exosome biogenesis offers new avenues for targeted cancer therapy, neuroprotection, and wound healing.

Conclusions:

  • Small molecules are pivotal in overcoming exosome production limitations.
  • This approach provides a foundation for advancing cell-free therapies.
  • Further research can accelerate the clinical translation of exosome-based treatments.