Post-translational add-ons mark the path in exosomal protein sorting
Olga Moreno-Gonzalo1,2, Irene Fernandez-Delgado1,2, Francisco Sanchez-Madrid3,4,5
1Vascular Pathophysiology Research Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain.
Cellular and Molecular Life Sciences : CMLS
|October 29, 2017
Summary
Post-translational modifications (PTMs) like ubiquitination guide protein sorting into extracellular vesicles (EVs) for cell communication. Understanding these PTMs in EVs offers new diagnostic biomarkers and vaccine development strategies.
Area of Science:
- Biochemistry
- Cell Biology
- Molecular Biology
Background:
- Extracellular vesicles (EVs) mediate intercellular communication by transporting proteins, lipids, and nucleic acids.
- Specific protein enrichment in EVs suggests targeted sorting mechanisms.
- Post-translational modifications (PTMs) play a role in the selective loading of molecules into EVs.
Discussion:
- This review focuses on PTMs within EVs, particularly ubiquitination and ubiquitin-like modifiers.
- These modifications are crucial for the exosomal sorting of protein components.
- Investigating PTMs provides insights into the functional regulation of EVs.
Key Insights:
- PTMs are critical determinants of EV cargo composition.
- Ubiquitin and related modifiers are key players in protein sorting into exosomes.
- EVs can be engineered for therapeutic applications by controlling their PTMs.
Outlook:
- Defined PTM patterns on EVs can serve as novel diagnostic and prognostic biomarkers for diseases.
- Targeted loading of immunogenic components into EVs can advance vaccine generation.
- Further research into PTM-mediated EV sorting will unlock new biomedical strategies.
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