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公开(公告)号:US06235061B1
公开(公告)日:2001-05-22
申请号:US08222662
申请日:1994-04-04
申请人: Cato T. Laurencin , Saadiq El-Amin , Archel M. A. Ambrosio , Shawn R. Pucher , Harry R. Allcock
发明人: Cato T. Laurencin , Saadiq El-Amin , Archel M. A. Ambrosio , Shawn R. Pucher , Harry R. Allcock
IPC分类号: A61F228
CPC分类号: C08G79/025 , A61F2/28 , A61F2002/30062 , A61F2210/0004 , A61L27/18 , A61L2430/02 , A61L27/58 , C08L85/02
摘要: A highly porous three-dimensional biodegradable poly(organophosphazene) matrix with hydrolytically unstable side chains is prepared and used as a scaffold for the growth of osteoblast cells. In a preferred embodiment, the poly(organophosphazene) includes between 10 and 90% hydrolytically unstable side chains including glucosyl, glyceryl, glyceryl, imidazolyl or ethoxy units, for example, poly[(methylphenoxy)(ethyl glycinato) phosphazene]. The addition of the glucosyl, glycinyl or glyceryl side chains to the polymer can also be used generally to enhance growth rates of cells adhered to the polymer, presumably through uptake and metabolism of the simple sugar or alcohol units.
摘要翻译: 制备具有水解不稳定侧链的高度多孔的三维可生物降解的聚(有机膦腈)基质,并用作成骨细胞生长的支架。 在优选的实施方案中,聚(有机膦腈)包括10-90%水解不稳定的侧链,包括葡糖基,甘油基,甘油基,咪唑基或乙氧基单元,例如聚[(甲基苯氧基)(乙基甘氨酸)磷腈]。 甘油基,甘氨酰或甘油侧链加入到聚合物中通常也可用于增强附着于聚合物上的细胞的生长速度,这可能是通过单糖或醇单元的摄取和代谢。
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公开(公告)号:US20070250165A1
公开(公告)日:2007-10-25
申请号:US11766166
申请日:2007-06-21
申请人: Cato Laurencin , Helen Lu , Michelle Kofron , Saadiq El-Amin , Mohamed Attawia
发明人: Cato Laurencin , Helen Lu , Michelle Kofron , Saadiq El-Amin , Mohamed Attawia
IPC分类号: A61F2/28
CPC分类号: A61L27/3847 , A61F2002/2817 , A61F2002/2835 , A61K35/12 , A61L27/227 , A61L27/3608 , A61L27/365 , A61L2430/02 , C12N5/0068 , C12N5/0654 , C12N2501/155 , C12N2506/1323 , C12N2533/40
摘要: Bone grafting materials containing a polymer scaffold loaded with bone morphogenetic proteins and populated with muscle cells induced by the bone morphogenetic proteins to exhibit an osteoblastic phenotype and to synthesize bone tissue are provided. Also provided are methods for using these polymer scaffolds in bone grafting procedures.
摘要翻译: 提供了含有装载有骨形态发生蛋白的聚合物支架和由骨形态发生蛋白诱导的肌肉细胞展示成骨细胞表型并合成骨组织的骨移植材料。 还提供了在骨移植过程中使用这些聚合物支架的方法。
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