Genomics

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MicroRNA sequencing of MSC-derived Extracellular vesicles


ABSTRACT: Human bone marrow-derived MSCs were stimulated with Bronchoalveolar lavage fluid (BALF) from healthy individuals or patients with ARDS, Cystic Fibrosis, Cystic Fibrosis positive for Aspergillus or untreated untreated MSC. Extracellular vesicles were isolated from MSC conditioned medium following minimal experimental requirements for definition of extracellular vesicles and their functions: a position statement from the International Society for Extracellular Vesicles (J Extracell Vesicles. 2014 Dec 22:3:26913. doi: 10.3402/jev.v3.26913. eCollection 2014). In Phase 1 of this study, differential expression as well as discriminant analysis was used to identify 14 microRNAs that were differentially expressed in MSC-derived EVs from MSCs exposed to BALF from ARDS patients compared to healthy controls. The effect of EVs on cellular physiology and was demonstrated in vitro by demonstration that wwo miRNAs involved in regulation of the cystic fibrosis transmembrane conductance regulator (CFTR), miRNA-145-5p and miRNA-138-5p, were also significantly increased in ARDS BALF-exposed hMSCs EVs. Functionally, EVs from hMSCs exposed to either ARDS or HV BALF had differential on CFTR Cl- secretion by cultured primary human bronchial epithelial cells, an effect predicted to reduce mucociliary clearance.

ORGANISM(S): Homo sapiens

PROVIDER: GSE282919 | GEO | 2025/03/12

REPOSITORIES: GEO

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