The use of autologous enriched bone marrow MSCs to enhance osteoporotic bone defect repair in long-term estrogen deficient goats

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• 作者：Lei Cao^a ; ^c ; Guangwang Liu^a ; ¹ ; Yaokai Gan^a ; ¹ ; Qiming Fan^a ; Fei Yang^a ; Xiaoling Zhang^b ; Tingting Tang^a ; Kerong Dai^a ; ^b ; ^{krdai@sibs.ac.cn} ; ^{krdai@163.com}
• 关键词：Enrichment ; Stem cells ; Osteoporotic ; Bone defect
• 刊名：Biomaterials
• 出版年：2012
• 期刊代码：7_01429612
• 类别：ms
• 出版时间：July, 2012
• 卷：33
• 期：20
• 页码：5076-5084
• 文件大小：2492 K

摘要

Bone defects are common in elderly patients suffering from osteoporosis. Current methods of bone defect treatment for osteoporosis are not always satisfactory. In this study, we demonstrated that bone marrow mesenchymal stem cells (MSCs) harvested from goats with long-term estrogen deficiencies exhibited a lower proliferation rate and decreased osteogenic capacity, which are critical obstacles for bone defect repair in the elderly. However, by combining autologous enriched bone marrow mesenchymal stem cells with porous 尾-TCP, we successfully repaired critical-sized bone defects in the medial femoral condyle of the osteoporotic goats. Both micro-CT images and histomorphometry analysis illustrated improved bone formation following the enriched MSC therapy. Thus, we proposed autologous enriched bone marrow mesenchymal stem cells as a quick, safe therapeutic strategy to treat osteoporotic bone defects.