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논문 기본 정보

자료유형
학술저널
저자정보
Se-Young Oh (Ewha Womans University College of Medicine Seoul Korea) Da Hyeon Choi (Chungbuk National University) Yoon Mi Jin (College of Medicine Ewha Womans University) Yeonsil Yu (College of Medicine Ewha Womans University) 김하영 (이화여자대학교) Gyungah Kim (College of Medicine Ewha Womans University) Yoon Shin Park (Chungbuk National University) Inho Jo (Ewha Womans University College of Medicine Seoul Korea)
저널정보
한국조직공학과 재생의학회 조직공학과 재생의학 조직공학과 재생의학 제16권 제6호
발행연도
2019.1
수록면
631 - 643 (13page)

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BACKGROUND: Stem cell engineering is appealing consideration for regenerating damaged endothelial cells (ECs) because stem cells can differentiate into EC-like cells. In this study, we demonstrate that tonsil-derived mesenchymal stem cells (TMSCs) can differentiate into EC-like cells under optimal physiochemical microenvironments. METHODS: TMSCs were preconditioned with Dulbecco’s Modified Eagle Medium (DMEM) or EC growth medium (EGM) for 4 days and then replating them on Matrigel to observe the formation of a capillary-like network under light microscope. Microarray, quantitative real time polymerase chain reaction, Western blotting and immunofluorescence analyses were used to evaluate the expression of gene and protein of EC-related markers. RESULTS: Preconditioning TMSCs in EGM for 4 days and then replating them on Matrigel induced the formation of a capillary-like network in 3 h, but TMSCs preconditioned with DMEM did not form such a network. Genome analyses confirmed that EGM preconditioning significantly affected the expression of genes related to angiogenesis, blood vessel morphogenesis and development, and vascular development. Western blot analyses revealed that EGM preconditioning with gelatin coating induced the expression of endothelial nitric oxide synthase (eNOS), a mature EC-specific marker, as well as phosphorylated Akt at serine 473, a signaling molecule related to eNOS activation. Gelatin-coating during EGM preconditioning further enhanced the stability of the capillary-like network, and also resulted in the network more closely resembled to those observed in human umbilical vein endothelial cells. CONCLUSION: This study suggests that under specific conditions, i.e., EGM preconditioning with gelatin coating for 4 days followed by Matrigel, TMSCs could be a source of generating endothelial cells for treating vascular dysfunction.

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