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首页> 外文期刊>Genetics and Molecular Research >Effects of cartilage-derived morphogenetic protein 1 (CDMP1) transgenic mesenchymal stem cell sheets in repairing rabbit cartilage defects
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Effects of cartilage-derived morphogenetic protein 1 (CDMP1) transgenic mesenchymal stem cell sheets in repairing rabbit cartilage defects

机译:软骨衍生的形态发生蛋白1(CDMP1)转基因间充质干细胞片在修复兔软骨缺陷中的影响

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摘要

The aim of this study was to investigate the abilities of cartilage-derived morphogenetic protein 1 (CDMP1) transgenic cell sheets in repairing rabbit cartilage defects. Rabbit CDMP1 transgenic bone marrow mesenchymal stem cell (BMSC) sheets (CDMP1-BMSCs) were cultured on temperature-sensitive culture dishes, and CDMP1 expression and type II collagen protein in the cell sheets were detected. Tissue-engineered cell sheets were constructed and transplanted into defect rabbit thyroid cartilage, to investigate the expression of engineered cartilage collagen protein and proteoglycan (GAG). The experiment was divided into three groups; A) BMSC sheet, B) Ad-CMV-eGFP-transfected cell sheet, and C) Ad-CMV-hCDMP1-IRES-eGFP-transfected cell sheet. The expression of CDMP1 was detected in the transgenic cell sheets. The engineered cartilage exhibited positive immunohistochemical and Alcian blue staining. The expression levels of type II collagen protein and GAG in group A were positive, whereas those in group B and group C were negative (P
机译:本研究的目的是研究软骨衍生的形态发生蛋白1(CDMP1)转基因细胞片在修复兔软骨缺陷中的能力。兔CDMP1转基因骨髓间充质干细胞(BMSC)片(BMSC)片材(CDMP1-BMSCs)在温度敏感的培养皿上培养,并检测CDMP1表达和细胞片中的II型胶原蛋白。构建组织工程的细胞片并移植到缺陷兔甲状腺软骨中,以研究工程化软骨胶原蛋白和蛋白多糖(GAG)的表达。实验分为三组; a)BMSC片材,B)Ad-CMV-EGFP转染的细胞片,C)Ad-CMV-HCDMP1-IRES-EGFP转染的细胞片。在转基因细胞片中检测到CDMP1的表达。工程化软骨表现出阳性免疫组化和Alcian蓝染色。 II型胶原蛋白和A组中胶原的表达水平为阳性,而B组和C组中的蛋白为阴性(P

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