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Title: Diabetes induced changes in rat mesenchymal stem cells
Authors: Stolzing, Alexandra
Sellers, D.
Llewelyn, O.
Scutt, Andrew
Keywords: Bone biology
Cell biology
Diabetic animals
Free radicals
Mesenchymal stem cells
Issue Date: 2010
Publisher: © Karger
Citation: STOLZING, A. ... et al, 2010. Diabetes induced changes in rat mesenchymal stem cells. Cells Tissues Organs, 191 (6), pp. 453 - 465.
Abstract: Diabetes mellitus, the single most important cause of vascular disease in the industrialized world, is also associated with bone loss and impaired fracture healing. Mesenchymal stem cells (MSCs) have the potential to differentiate into osteoblasts, chondrocytes and adipocytes and other mesenchymal cells and play a central role in bone formation and repair. Because of this, we have investigated the possibility that diabetes has direct effects on MSCs in vivo and that this might represent a cellular basis for diabetes-induced osteoporosis. We isolated MSCs from rats with streptozotocin-induced diabetes and analysed them ex vivo for their ability to proliferate and differentiate in the fibroblastic colony-forming unit assay. Effects of diabetes on bone metabolism in vivo were determined by analysing tibiae from control and diabetic animals by quantitative computerized tomography. The total number of colonies and osteoblastic colonies staining positive for alkaline phosphatase were quantified and both colony size and number were found to be significantly reduced in diabetic rats. The changes appear to be mediated by the induction of apoptosis and senescence by advanced glycation end products (AGEs), together with an increase in the receptor for AGEs (RAGE). These changes were paralleled by extensive loss of trabecular bone in the tibiae of the diabetic animals. These data suggest that MSCs become exhausted during diabetes and lose their differentiation potential, leading to a net loss of trabecular bone. Therefore, direct effects on MSCs may be responsible for some of the orthopaedic effects associated with diabetes. © 2010 S. Karger AG, Basel.
Description: This article is closed access.
Sponsor: This study was supported by the Diabetes UK and the Biomedical Research Centre, Sheffield Hallam University.
Version: Published
DOI: 10.1159/000281826
URI: https://dspace.lboro.ac.uk/2134/16830
Publisher Link: http://dx.doi.org/10.1159/000281826
ISSN: 1422-6405
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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