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题目:: Identification and analysis of in vitro cultured CD45-positive cells capable of multi-lineage differentiation.
作者:: Rogers(Ian),Yamanaka(Nobuko),Bielecki(Ryszard),Wong(Christine J),Chua(Shawn),Yuen(Shelia),Casper(Robert F)
状态:: 发布时间2007-04-30 , 更新时间 2016-11-24
期刊:: Exp Cell Res
摘要:: We report on a subset of cells that co-purify with CD45-positive/Lineage minus (CD45(pos)/Lin(minus)) hematopoietic cells that are capable of in vitro differentiation into multi-potential cells including cells with neuroectoderm properties. Although these cells are CD45 positive and have properties similar to CD45-negative mesenchymal progenitor cells (MPC) derived from bone marrow (BM), they are neither hematopoietic cells nor mesenchymal cells. These CD45(pos)/Lin(minus) cells can be expanded in vitro, express the stem cell genes Oct-4 and Nanog and can be induced to differentiate into endothelial cells, osteoblasts, muscle cells and neural cells at frequencies similar to those reported for bone marrow mesenchymal cells. Long-term culture of these cells followed by transplantation into NOD/SCID mice resulted in positive bone marrow stromal cell engraftment but not hematopoietic engraftment, suggesting that despite their CD45-positive status these cells do not have the same properties as hematopoietic stem cells. Clonal cell analysis determined that the culture period caused a broadening in the differentiation potential of the starting population.
语言:: eng
DOI:: 10.1016/j.yexcr.2007.02.029

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