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논문 기본 정보

자료유형
학술저널
저자정보
Getova V. E. (Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen) Orozco-García E. (Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen) Palmers S. (Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen) Krenning G. (Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen) Narvaez-Sanchez R. (Physiology and Biochemistry Research Group–PHYSIS, Faculty of Medicine, University of Antioquia) Harmsen M. C. (Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen)
저널정보
한국조직공학과 재생의학회 조직공학과 재생의학 조직공학과 재생의학 제21권 제6호
발행연도
2024.8
수록면
881 - 895 (15page)
DOI
10.1007/s13770-024-00650-4

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Background: The extracellular vesicles (EVs) secreted by adipose tissue-derived stromal cells (ASC) are microenvironment modulators in tissue regeneration by releasing their molecular cargo, including miRNAs. However, the influence of ASC-derived extracellular vesicles (ASC-EVs) on endothelial cells (ECs) and vascularisation is poorly understood. The present study aimed to determine the pro-angiogenic effects of ASC-EVs and explore their miRNA profile. Methods: EVs were isolated from normoxic and hypoxic cultured ASC conditioned culture medium. The miRNA expression profile was determined by miRseq, and EV markers were determined by Western blot and immunofluorescence staining. The uptake dynamics of fluorescently labelled EVs were monitored for 24 h. ASC-EVs' pro-angiogenic effect was assessed by sprouting ex vivo rat aorta rings in left ventricular-decellularized extracellular matrix (LV dECM) hydrogel or basement membrane hydrogel (Geltrex®). Results: ASC-EVs augmented vascular network formation by aorta rings. The vascular network topology and stability were influenced in a hydrogel scaffold-dependent fashion. The ASC-EVs were enriched for several miRNA families/clusters, including Let-7 and miR-23/27/24. The miRNA-1290 was the highest enriched non-clustered miRNA, accounting for almost 20% of all reads in hypoxia EVs. Conclusion: Our study revealed that ASC-EVs augment in vitro and ex vivo vascularisation, likely due to the enriched pro-angiogenic miRNAs in EVs, particularly miR-1290. Our results show promise for regenerative and revascularisation therapies based on ASC-EV-loaded ECM hydrogels. Similar content being viewed by

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