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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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CD31(-) HipOps - A Highly Osteogenic Cell Population From Mouse Bone MarrowMcKenzie, Kristen Penny 04 December 2012 (has links)
Multipotent mesenchymal stem cells (MSCs), found in many adult tissues, may be useful for regenerative medicine applications. Their identification and purification have been difficult due to their low frequency and lack of unambiguous markers. Using a magnetic micro-beads negative selection technique to remove contaminating hematopoietic cells from mouse bone marrow stromal cells (BMSCs), our lab recently isolated a highly purified osteoprogenitor (HipOp) population that was also enriched for other mesenchymal precursors, including MSCs (Itoh and Aubin, 2009). To further enhance enrichment, we positively selected BMSCs and HipOps for CD73, a putative MSC marker, which resulted in no significant additional enrichment for osteoprogenitors when the population was tested in vitro. However, we also found that HipOps were enriched in vascular endothelial cells, and that removing these cells by further negative selection with CD31/PECAM resulted in a CD31(-) HipOp population with higher osteogenic capacity than HipOps in vitro and in vivo.
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CD31(-) HipOps - A Highly Osteogenic Cell Population From Mouse Bone MarrowMcKenzie, Kristen Penny 04 December 2012 (has links)
Multipotent mesenchymal stem cells (MSCs), found in many adult tissues, may be useful for regenerative medicine applications. Their identification and purification have been difficult due to their low frequency and lack of unambiguous markers. Using a magnetic micro-beads negative selection technique to remove contaminating hematopoietic cells from mouse bone marrow stromal cells (BMSCs), our lab recently isolated a highly purified osteoprogenitor (HipOp) population that was also enriched for other mesenchymal precursors, including MSCs (Itoh and Aubin, 2009). To further enhance enrichment, we positively selected BMSCs and HipOps for CD73, a putative MSC marker, which resulted in no significant additional enrichment for osteoprogenitors when the population was tested in vitro. However, we also found that HipOps were enriched in vascular endothelial cells, and that removing these cells by further negative selection with CD31/PECAM resulted in a CD31(-) HipOp population with higher osteogenic capacity than HipOps in vitro and in vivo.
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