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ABSTRACT: Background
Extracellular vesicles (EVs) are derived from internal cellular compartments, and have potential as a diagnostic and therapeutic tool in degenerative disease associated with aging. Mesenchymal stem cells (MSCs) have become a promising tool for functional EVs production. This study investigated the efficacy of EVs and its effect on differentiation capacity.Methods
The characteristics of MSCs were evaluated by flow cytometry and stem cell differentiation analysis, and a production mode of functional EVs was scaled from MSCs. The concentration and size of EVs were quantitated by Nanoparticle Tracking Analysis (NTA). Western blot analysis was used to assess the protein expression of exosome-specific markers. The effects of MSC-derived EVs were assessed by chondrogenic and adipogenic differentiation analyses and histological observation.Results
The range of the particle size of adipose-derived stem cells (ADSCs)- and Wharton's jelly -MSCs-derived EVs were from 130 to 150 nm as measured by NTA, which showed positive expression of exosomal markers. The chondrogenic induction ability was weakened in the absence of EVs in vitro. Interestingly, after EV administration, type II collagen, a major component in the cartilage extracellular matrix, was upregulated compared to the EV-free condition. Moreover, EVs decreased the lipid accumulation rate during adipogenic induction.Conclusion
The results indicated that the production model could facilitate production of effective EVs and further demonstrated the role of MSC-derived EVs in cell differentiation. MSC-derived EVs could be successfully used in cell-free therapy to guide chondrogenic differentiation of ADSC for future clinical applications in cartilage regeneration.
SUBMITTER: Tsai YC
PROVIDER: S-EPMC9679102 | biostudies-literature | 2022 Dec
REPOSITORIES: biostudies-literature
Tsai Yu-Chen YC Cheng Tai-Shan TS Liao Hsiu-Jung HJ Chuang Ming-Hsi MH Chen Hui-Ting HT Chen Chun-Hung CH Zhang Kai-Ling KL Chang Chih-Hung CH Lin Po-Cheng PC Huang Chi-Ying F CF
Tissue engineering and regenerative medicine 20221108 6
<h4>Background</h4>Extracellular vesicles (EVs) are derived from internal cellular compartments, and have potential as a diagnostic and therapeutic tool in degenerative disease associated with aging. Mesenchymal stem cells (MSCs) have become a promising tool for functional EVs production. This study investigated the efficacy of EVs and its effect on differentiation capacity.<h4>Methods</h4>The characteristics of MSCs were evaluated by flow cytometry and stem cell differentiation analysis, and a ...[more]