Extracellular vesicles generated using bioreactors and their therapeutic effect on the acute kidney injury model


Posted: 2021-11-13 20:00:00
Adv Healthc Mater . 2021 Nov 13;e2101606. doi: 10.1002/adhm.202101606. Online ahead of print. Affiliations Expand Affiliations 1 School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea. 2 EXOSOMEplus Inc., Suwon, Gyeonggi-do, Republic of Korea. 3 Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea. 4 Department of Internal Medicine, Seoul National University Bundang Hospital, Pohang, Gyeonggi-do, Republic of Korea. Item in Clipboard Hyejin Kang et al. Adv Healthc Mater. 2021. Show details Display options Display options Format Adv Healthc Mater . 2021 Nov 13;e2101606. doi: 10.1002/adhm.202101606. Online ahead of print. Affiliations 1 School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea. 2 EXOSOMEplus Inc., Suwon, Gyeonggi-do, Republic of Korea. 3 Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Gyeong-buk, Republic of Korea. 4 Department of Internal Medicine, Seoul National University Bundang Hospital, Pohang, Gyeonggi-do, Republic of Korea. Item in Clipboard CiteDisplay options Display options Format Abstract Extracellular vesicles (EVs) are nano-sized vesicles secreted by cells, having beneficial effects for various types of regenerative processes. Although EVs have shown promising effects as therapeutic agents, these effects are difficult to research due to the limitations of EV production. In this study, we introduce an EV production method based on a flat-plate bioreactor. The bioreactor produces approximately seven times more mesenchymal stem cell-derived EVs than static culture conditions. We investigate the mechanism underlying the increased production of EVs in a flat-plate bioreactor and its application to acute kidney injury. This study describes the mechanism of EV production by demonstrating the link between EV biogenesis and increased calcium ion concentration under flow conditions. EVs secreted by cells cultured in the bioreactor have therapeutic efficacy in terms of improving kidney damage, resulting in tissue regeneration in a cisplatin-induced acute kidney injury model. This method will help overcome the limitations of EV production, and our analysis of the application of EVs will increase their reliability as well as our understanding of the use of bioreactor-derived EVs as therapeutic agents. This article is protected by copyright. All rights reserved. Keywords: Acute kidney injury model; Bioreactor; Extracellular vesicle; Large-scale production; Mechanism of extracellular vesicle genesis; Mesenchymal stem cell. This article is protected by copyright. All rights reserved. [x] Cite Copy Format: Send To [x]

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