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BACKGROUND Mesenchymal stem cells (MSCs) hold great promise for the treatment of difficult diseases. As MSCs represent a rare cell population, ex vivo expansion of MSCs is indispensable to obtain sufficient amounts of cells for therapies and tissue engineering. However, spontaneous differentiation and aging of MSCs occur during expansion and the molecular(More)
Xenotransplantation of human cells into immunodeficiency mice has been frequently used to study stem cells in tissue repair and regeneration and cancer cell metastasis. However, a sensitive and reproducible method to quantify cell engraftment lacks. Here, we developed a Real-Time PCR-based method which facilitated consistent detection and quantification of(More)
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