사람의 허벅지지방유래 줄기세포의 특성 분석
Characterization of Human Thigh Adipose-derived Stem Cells
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Human adipose stem cells are an abundant, readily available population of multipotent progenitor cells that reside in adipose tissue and these cells have characteristics very similar to bone marrow mesenchymal stromal cells (BM- MSCs). However, liposuction procedure, donor age, body mass index, and harvesting sites might generate differences in the initial cell population and the preparations are a heterogeneous mixture of precursors with different subsets. Therefore, in this study, we investigated the characteristics of human thigh adipose stem cells and the differentiation potential into mesodermal and endodermal lineage. Thigh adipose stem cells maintained fibroblast-like morphology similar to BM-MSCs and they underwent average 56.5 doublings and produced 5×1022 cells. These cells expressed SCF, Oct4, nanog, vimentin, CK18, FGF5, NCAM, Pax6, BMP4, HNF4a, nestin, GATA4, HLA-ABC, and HLA-DR genes at p3 and they also expressed Oct4, Thy-1, FSP, vWF, vimentin, desmin, CK18, CD54, CD4, CD106, CD31, a-SMA, HLA-ABC proteins. Moreover, they could differentiate into mesodermal lineage cells such as adipocyte, osteoblast and chondrocyte. In addition, they also differentiated into insulin secreting cells in our culture condition. In conclusion, human thigh adipose stem cells retain proliferative potential and expression patterns similar to BM-MSCs and they also differentiate into various cell types. Thus, human thigh adipose stem cells might be useful alternative cell source for clinical application.
Abstract
Human adipose stem cells are an abundant, readily available population of multipotent progenitor cells that reside in adipose tissue and these cells have characteristics very similar to bone marrow mesenchymal stromal cells (BM- MSCs). However, liposuction procedure, donor age, body mass index, and harvesting sites might generate differences in the initial cell population and the preparations are a heterogeneous mixture of precursors with different subsets. Therefore, in this study, we investigated the characteristics of human thigh adipose stem cells and the differentiation potential into mesodermal and endodermal lineage. Thigh adipose stem cells maintained fibroblast-like morphology similar to BM-MSCs and they underwent average 56.5 doublings and produced 5×1022 cells. These cells expressed SCF, Oct4, nanog, vimentin, CK18, FGF5, NCAM, Pax6, BMP4, HNF4a, nestin, GATA4, HLA-ABC, and HLA-DR genes at p3 and they also expressed Oct4, Thy-1, FSP, vWF, vimentin, desmin, CK18, CD54, CD4, CD106, CD31, a-SMA, HLA-ABC proteins. Moreover, they could differentiate into mesodermal lineage cells such as adipocyte, osteoblast and chondrocyte. In addition, they also differentiated into insulin secreting cells in our culture condition. In conclusion, human thigh adipose stem cells retain proliferative potential and expression patterns similar to BM-MSCs and they also differentiate into various cell types. Thus, human thigh adipose stem cells might be useful alternative cell source for clinical application.
참고문헌 (25)
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