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논문 기본 정보

자료유형
학술저널
저자정보
박정현 (가톨릭대학교) 김옥희 (가톨릭대학교) 김기환 (가톨릭대학교) 홍하은 (가톨릭대학교) 서해연 (가톨릭대학교) 최호중 (가톨릭대학교) Joseph Ahn (Surgery Seoul St. Mary’s Hospital College of Medicine The Catholic University of Korea Seoul) 이태윤 (가톨릭대학교) 김세준 (가톨릭대학교)
저널정보
대한의학회 Journal of Korean Medical Science Journal of Korean Medical Science Vol.34 No.45
발행연도
2019.1
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1 - 15 (15page)

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Background: Secretome refers to the total set of molecules secreted or surface-shed by stem cells. The limitations of stem cell research have led numerous investigators to turn their attention to the use of secretome instead of stem cells. In this study, we intended to reinforce antifibrotic properties of the secretome released from adipose-derived stem cells (ASCs) transfected with miR-214. Methods: We generated miR-214-transfected ASCs, and extracted the secretome (miR214-secretome) from conditioned media of the transfected ASCs through a series of ultrafiltrations. Subsequently, we intravenously injected the miR-214-secretome into mice with liver fibrosis, and determined the effects of miR-214-secretome on liver fibrosis. Results: Compared with that by naïve secretome, liver fibrosis was ameliorated by intravenous infusion of miR-214-secretome into mice with liver fibrosis, which was demonstrated by significantly lower expression of fibrosis-related markers (alpha-smooth muscle actin, transforming growth factor-β, and metalloproteinases-2) in the livers as well as lower fibrotic scores in the special stained livers compared with naïve secretome. The infusion of miR-214-secretome also led to lesser local and systemic inflammation, higher expression of an antioxidant enzyme (superoxide dismutase), and higher liver proliferative and synthetic function. Conclusion: MicroRNA-214 transfection stimulates ASCs to release the secretome with higher antifibrotic and anti-inflammatory properties. miR-214-secretome is thus expected to be one of the prominent ways of overcoming liver fibrosis, if further studies consistently validate its safety and efficiency.

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