POROUS POLYSACCHARIDE SCAFFOLD COMPRISING NANO-HYDROXYAPATITE, AND USE FOR BONE FORMATION

PROBLEM TO BE SOLVED: To provide three-dimensional porous polysaccharide matrices capable of inducing mineralization of a tissue in osseous site, as well as in non-osseous site, in the absence of stent cells or growth factors.SOLUTION: A method for generating porous polysaccharide scaffold comprises...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JEANRISTOPHE FRICAIN, SYLVAIN CATROS, JOELLE AMEDEE, CATHERINE LE VISAGE, DIDIER LETOURNEUR, SIDI MOHAMMED DERKAOUI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide three-dimensional porous polysaccharide matrices capable of inducing mineralization of a tissue in osseous site, as well as in non-osseous site, in the absence of stent cells or growth factors.SOLUTION: A method for generating porous polysaccharide scaffold comprises the following steps: i) preparing an alkaline aqueous solution comprising an amount of at least one polysaccharide, an amount of a cross-linking agent and an amount of a porogen agent; ii) transforming the solution into a hydrogel by placing the solution at a temperature from 4°C to 80°C for a sufficient time to allow cross-linking of the amount of polysaccharide; iii) submerging the hydrogel into a solvent, preferably an aqueous solution; and iv) washing the porous polysaccharide scaffold obtained at step iii), wherein the alkaline aqueous solution of step i) further comprises hydroxyapatite, preferably nano-hydroxyapatite.SELECTED DRAWING: None 【課題】幹細胞又は成長因子の非存在下で、骨性部位及び非骨性部位において組織の石化を誘導できる三次元多孔質多糖マトリックスの提供。【解決手段】多孔質多糖足場を調製するための方法であって、以下の工程を、含む、方法。i)少なくとも1つの多糖の量、架橋剤の量、及びポロゲン剤の量を含むアルカリ性水溶液を調製すること、ii)前記溶液を、約4℃〜約80℃の温度で、前記多糖の量を架橋させるのに十分な時間置くことによって、当該溶液をヒドロゲルにトランスフォーメーションすること、iii)前記ヒドロゲルを溶媒、好ましくは水溶液に浸すこと、及びiv)工程iii)で得られた多孔質多糖足場を洗浄すること、工程i)のアルカリ性水溶液が、ヒドロキシアパタイト、好ましくはナノヒドロキシアパタイトをさらに含む【選択図】なし