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Article Abstract
Purified mesenchymal stem cells (MSCs) may be used for a multitude of applications, from the study of biological processes such as cell division and coordinated gene expression to tissue engineering and regenerative medicine. However, although highly similar, MSCs isolated and purified from different tissues may be biologically different in the ability of the cells to respond to environmental cues that instigate and propagate changes in cell fate such as differentiation, proliferation, apoptosis, and senescence. Selecting which MSC subtype to study may therefore profoundly influence the outcome of the investigation. Here we outline the isolation, purification, and differentiation of three different MSC subtypes derived from various depots within rat bone. These include MSCs from bone marrow, compact bone, and the proximal femur. Osteoblastic and adipogenic differentiation exemplify differences between these cells.
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