发明名称 |
Methods and compositions for repair of cartilage using an in vivo bioreactor |
摘要 |
Methods and compositions for the biological repair of cartilage using a hybrid construct combining both an inert structure and living core are described. The inert structure is intended to act not only as a delivery system to feed and grow a living core component, but also as an inducer of cell differentiation. The inert structure comprises concentric internal and external and inflatable/expandable balloon-like bio-polymers. The living core comprises the cell-matrix construct comprised of HDFs, for example, seeded in a scaffold. The method comprises surgically removing a damaged cartilage from a patient and inserting the hybrid construct into the cavity generated after the foregoing surgical intervention. The balloons of the inert structure are successively inflated within the target area, such as a joint, for example. Also disclosed herein are methods for growing and differentiating human fibroblasts into chondrocyte-like cells via mechanical strain. |
申请公布号 |
US9138460(B2) |
申请公布日期 |
2015.09.22 |
申请号 |
US201113185472 |
申请日期 |
2011.07.18 |
申请人 |
Spinalcyte LLC |
发明人 |
Sevrain Lionel C.;Verdier-Sevrain Sylvie Y. |
分类号 |
C12N5/077;A61K38/18;A61F2/30;A61F2/44;A61L27/38;A61K45/06;A61K35/32;A61K35/33;A61F2/32;A61F2/38;A61F2/40;A61F2/28;A61F2/46 |
主分类号 |
C12N5/077 |
代理机构 |
Norton Rose Fulbright US LLP |
代理人 |
Norton Rose Fulbright US LLP |
主权项 |
1. A method of differentiating human dermal fibroblasts into chondrocyte-like cells, comprising the steps of:
providing human dermal fibroblasts and; exposing said fibroblasts to low oxygen tension and one or both of intermittent hydrostatic pressure and fluid shear stress, wherein the adult dermal fibroblasts differentiate into chondrocyte-like cells. |
地址 |
Houston TX US |