Abstract
Cardiac progenitor cell (CPC)-derived small extracellular vesicles (sEVs) exhibit great potential to stimulate cardiac repair. However, the multifaceted nature of sEV heterogeneity presents a challenge in understanding the distinct mechanisms underlying their regenerative abilities. Here, a dual-step multimodal flowthrough and size-exclusion chromatography method was applied to isolate and separate CPC-derived sEV subpopulations to study the functional differences related to cardiac repair responses. Three distinct sEV subpopulations were identified with unique protein profiles. Functional cell assays for cardiac repair-related processes demonstrated that the middle-sized and smallest-sized sEV subpopulations exhibited the highest pro-angiogenic and anti-fibrotic activities. Proteasome activity was uniquely seen in the smallest-sized subpopulation. The largest-sized subpopulation showed no effect in any of the functional assays. This research uncovers the existence of sEV subpopulations, each characterized by a distinct composition and biological function. Enhancing our understanding of sEV heterogeneity will provide valuable insights into sEV mechanisms of action, ultimately accelerating the translation of sEV therapeutics.
| Original language | English |
|---|---|
| Article number | 12396 |
| Number of pages | 21 |
| Journal | Journal of Extracellular Vesicles |
| Volume | 13 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 5 Jan 2024 |
Bibliographical note
Publisher Copyright:© 2024 The Authors. Journal of Extracellular Vesicles published by Wiley Periodicals LLC on behalf of International Society for Extracellular Vesicles.
Funding
This work is financially supported by a Van Herk Foundation grant, ESC First Contact Initiative Grant, MDR Young Talent Incentives Program, NLSEV-MOVE and Erasmus+ grant to SvdW, an NWO Veni grant to MFP (VI.Veni.202.27), an ERC Consolidator Grant EVICARE (#725229) of the European Research Council (ERC) to JS, and a PPS grant (No. 2018B014) to JS and PV.
| Funders | Funder number |
|---|---|
| MDR Young Talent Incentives Program | |
| NLSEV-MOVE | |
| Van Herk Foundation | |
| European Research Council | 2018B014 |
| Nederlandse Organisatie voor Wetenschappelijk Onderzoek | 725229, VI.Veni.202.27 |
| European Society of Contraception and Reproductive Health | |
| Erasmus+ |
Keywords
- extracellular vesicle function
- extracellular vesicles
- heterogeneity
- regenerative medicine
- subpopulations
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