지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.9
- 수록면
- 123 - 130 (8page)
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초록· 키워드
오류제보하기
Mesenchymal stem cells (MSCs) hold great promise as a source of stem cells for therapy, but several limitations remain. We previously proposed that human embryonic stem cell-derived MSCs (hE-MSCs) expressing higher hepatocyte growth factor (HGF) levels were better alternatives, exhibiting greater expandability in vitro and greater therapeutic capacity in vivo. In this study, we aimed to examine the regulation of OCT4 expression in stem cells and to elucidate its underlying mechanism of transcriptional regulation of OCT4. We detected higher expression of OCT4, a stemness-associated gene in hE-MSCs than in human bone marrow-derived MSCs (hBM-MSCs). To determine the underlying regulatory mechanism of OCT4 expression in human MSCs (hMSCs), ELISA was performed using cell culture supernatants of hMSCs. Unlike fibroblast growth factor 2 or vascular endothelial growth factor, HGF was strongly expressed in hE-MSCs, also HGF treatment significantly increased OCT4 expression in hBM-MSC. Moreover, senescence-associated heterochromatin foci were decreased in HGF-treated hBM-MSCs compared with those in the HGF non-treated group. HGF increased Rb phosphorylation, and we confirmed the increased binding of E2F1 to the OCT4 promoter region at -233 from the transcription start point in the presence of HGF. Taken together, these results suggest that HGF-mediated regulation of OCT4 via E2F1 can help enhance the lifespan of hBM-MSCs during in vitro expansion.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES
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