Comparative proteomic analysis of exosomes derived from endothelial cells and Schwann cells
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ABSTRACT: Exosomes derived from endothelial cells and Schwann cells have been employed as novel treatments of neurological diseases, including peripheral neuropathy. Exosomal cargo plays a critical role in mediating recipient cell function. In this study, we thus performed a comprehensive proteomic analysis of exosomes derived from healthy mouse dermal microvascular endothelial cells (EC-Exo) and healthy mouse Schwann cells (SC-Exo). We detected 1,817and 1,579 proteins in EC-Exo and SC-Exo, respectively. Among them, 1506 proteins were present in both EC-Exo and SC-Exo, while 311 and 73 proteins were detected only in EC-Exo and SC-Exo, respectively. Bioinformatic analysis revealed that EC-Exo enriched proteins were involved in the neurovascular function, while SC-Exo enriched proteins were related to lipid metabolism. Western blot analysis of 14 enriched proteins revealed that EC-Exo contained proteins involved in mediating endothelial function such as delta-like 4 (DLL4) and endothelial NOS (NOS3), whereas SC-Exo had proteins involved in mediating glial function such as apolipoprotein A-I (APOA1) and phospholipid transfer protein (PLTP). Collectively, the present study indicates cargo protein profiles are distinct between EC-Exo and SC-Exo, suggesting potential roles of EC-Exo and SC-Exo mainly in mediating neurovascular and myelin functions, respectively.
INSTRUMENT(S): Q Exactive
ORGANISM(S): Mus Musculus (mouse)
TISSUE(S): Microvascular Endothelium, Schwann Cell, Cell Culture, Endothelium
DISEASE(S): Wounds And Injuries
SUBMITTER: Paul Stemmer
LAB HEAD: Lei Wang
PROVIDER: PXD041547 | Pride | 2023-08-20
REPOSITORIES: Pride
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