In vitro mesengenic potential of human umbilical cord blood-derived mesenchymal stem cells

Eun Ji Gang, Seung Hyun Hong, Ju Ah Jeong, Soo Han Hwang, Seong Whan Kim, Il Ho Yang, Chiyoung Ahn, Hoon Han, Hoeon Kim
Biochemical and Biophysical Research Communications 2004 August 13, 321 (1): 102-8
Human mesenchymal stem cells (hMSCs) have been paid a great deal of attention because of their unprecedented therapeutic merits endowed by powerful ex vivo expansion and multilineage differentiation potential. Umbilical cord blood (UCB) is a convenient but not fully proven source for hMSCs, and hence, greater experience is required to establish UCB as a reliable source of hMSCs. To this end, we attempted to isolate hMSC-like adherent cells from human UCB. The isolated cells were highly proliferative and exhibited an immunophenotype of CD13+ CD14- CD29+ CD31- CD34- CD44+ CD45- CD49e+ CD54+ CD90+ CD106- ASMA+ SH2+ SH3+ HLA-ABC+ HLA-DR-. More importantly, these cells, under appropriate conditions, could differentiate into a variety of mesenchymal lineage cells such as osteoblasts, chondrocytes, adipocytes, and skeletal myoblasts. This mesengenic potential assures that the UCB-derived cells are multipotent hMSCs and further implicates that UCB can be a legitimate source of hMSCs.

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