[Identification of human bone marrow mesenchymal stem cells: preparation and utilization of two monoclonal antibodies against SH2, SH3].

Human mesenchymal stem cells (MSC) are one kind of adult stem cells that can self-renew and give rise to one or more mesenchymal tissues, existing in bone marrow and other tissues. Not similar to CD34 recognizing hematopoietic stem cells, no such marker can be used yet to identify MSC. To isolate and identify MSC from bone marrow, anti-SH2 and SH3 monoclonal antibodies as markers to identify MSC were used.