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[ subject:"Cellular biology." ]
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Bone Tissue Engineering with Perivas...
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James, Aaron Watkins.
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Bone Tissue Engineering with Perivascular Stem Cells.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Bone Tissue Engineering with Perivascular Stem Cells./
作者:
James, Aaron Watkins.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:
93 p.
附註:
Source: Dissertation Abstracts International, Volume: 78-03(E), Section: B.
Contained By:
Dissertation Abstracts International78-03B(E).
標題:
Cellular biology. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10154683
ISBN:
9781369097764
Bone Tissue Engineering with Perivascular Stem Cells.
James, Aaron Watkins.
Bone Tissue Engineering with Perivascular Stem Cells.
- Ann Arbor : ProQuest Dissertations & Theses, 2017 - 93 p.
Source: Dissertation Abstracts International, Volume: 78-03(E), Section: B.
Thesis (Ph.D.)--University of California, Los Angeles, 2017.
This item is not available from ProQuest Dissertations & Theses.
Historically, mesenchymal stem cells (MSC) have been isolated in laboratory culture after several weeks, being selected from heterogeneous cell suspensions based on their ability to adhere and proliferate. Since 2001, human subcutaneous adipose tissue has been recognized as a rich source of tissue resident MSC. The isolation of perivascular progenitor cells from human adipose tissue by a cell sorting strategy was first published in 2008. Since this time, the interest in using pericytes and related perivascular stem cell (PSC) populations for tissue engineering has significantly increased. Herein, we describe a set of experiments in mouse and rat orthopaedic injury models, which examine the utility and advantages of PSC for bone tissue regeneration. In each model, PSC are compared to an unpurified stromal population taken from the same patient's sample (termed SVF, or stromal vascular fraction). Next, we examine the effects of several growth and differentiation factors (GDFs) on PSC mediated bone repair, including BMP2 (Bone morphogenetic protein 2), NELL-1, and Wnt signaling ligands. Results showed that adipose-derived PSC are readily obtainable from human lipoaspirate without the need for culture, are able to form bone in vivo without the need for pre-differentiation, and induce superior vascularized bone formation in comparison to unpurified stromal cell populations taken from the same patient sample. PSC have striking functional overlap with other MSC types, including their prominent paracrine function as a rich source of GDFs, but also their ability to directly participate in tissue regeneration. Unlike other MSC types, PSC frequency, viability, and osteogenic differentiation appear unphased in the context of osteoporotic conditions. These observed similarities and differences beg compelling questions regarding the phenotypic overlap between PSC and other MSC types. Finally, several candidate molecules enhance the osteogenic differentiation of PSC. Among these, the novel Wnt signaling regulator NELL-1 stimulates PSC to induce greater vascularized bone than either treatment alone. In aggregate, PSC represent an abundant and uncultured MSC source with significant translational potential for bone tissue repair.
ISBN: 9781369097764Subjects--Topical Terms:
3172791
Cellular biology.
Bone Tissue Engineering with Perivascular Stem Cells.
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Historically, mesenchymal stem cells (MSC) have been isolated in laboratory culture after several weeks, being selected from heterogeneous cell suspensions based on their ability to adhere and proliferate. Since 2001, human subcutaneous adipose tissue has been recognized as a rich source of tissue resident MSC. The isolation of perivascular progenitor cells from human adipose tissue by a cell sorting strategy was first published in 2008. Since this time, the interest in using pericytes and related perivascular stem cell (PSC) populations for tissue engineering has significantly increased. Herein, we describe a set of experiments in mouse and rat orthopaedic injury models, which examine the utility and advantages of PSC for bone tissue regeneration. In each model, PSC are compared to an unpurified stromal population taken from the same patient's sample (termed SVF, or stromal vascular fraction). Next, we examine the effects of several growth and differentiation factors (GDFs) on PSC mediated bone repair, including BMP2 (Bone morphogenetic protein 2), NELL-1, and Wnt signaling ligands. Results showed that adipose-derived PSC are readily obtainable from human lipoaspirate without the need for culture, are able to form bone in vivo without the need for pre-differentiation, and induce superior vascularized bone formation in comparison to unpurified stromal cell populations taken from the same patient sample. PSC have striking functional overlap with other MSC types, including their prominent paracrine function as a rich source of GDFs, but also their ability to directly participate in tissue regeneration. Unlike other MSC types, PSC frequency, viability, and osteogenic differentiation appear unphased in the context of osteoporotic conditions. These observed similarities and differences beg compelling questions regarding the phenotypic overlap between PSC and other MSC types. Finally, several candidate molecules enhance the osteogenic differentiation of PSC. Among these, the novel Wnt signaling regulator NELL-1 stimulates PSC to induce greater vascularized bone than either treatment alone. In aggregate, PSC represent an abundant and uncultured MSC source with significant translational potential for bone tissue repair.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10154683
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