Osteoinductive biomaterials

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/47 (2006.01) A61K 35/32 (2006.01) C07K 1/16 (2006.01) C07K 1/34 (2006.01) C07K 1/36 (2006.01)

Patent

CA 2527619

In a method of isolating osteogenic protein from bone, in which an osteogenic protein containing fraction is extracted from bone and enriched by a sequence of enrichment steps selected from ultrafiltration and chromatography, the invention provides the improvement of removing higher molecular weight components from the osteogenic protein containing fraction prior to the enrichment steps. The higher molecular weight components have a molecular weight of about 100 - 300 kDa and are selected from collagen, collagen fragments, collagen aggregates and mixtures thereof.

Dans une méthode permettant d~isoler une protéine ostéogène d~os, duquel une fraction contenant une protéine ostéogène est extraite et enrichie au moyen d~une séquence d~étapes d~enrichissement sélectionnées dans le groupe formé par l~ultrafiltration et la chromatographie, l~invention concerne la suppression améliorée de composants de poids moléculaire élevés de la fraction contenant une protéine ostéogène avant les étapes d~enrichissement. Les composants de poids moléculaire élevé possèdent un poids moléculaire d~environ 100 - 300 kDa et sont sélectionnés dans le groupe constitué par le collagène, des fragments de collagène, des agrégats de collagène et des mélanges de ceux-ci.

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