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In vitro and in vivo proves of concept for the use of a chemically cross-linked poly(ester-urethaneurea)scaffold as an easy handling elastomeric biomaterial for bone regeneration

引用

Regenerative Biomaterials 2019年第6期6卷 311-323页

作者： Geraldine Rohman Sylvie Changotade sophie frasca Salah Ramtani Anne Consalus Credson Langueh Jean-Marc Collombet Didier Lutomski Universite Paris 13 Sorbonne Paris CiteTissue Engineering and Proteomics(TIP)TeamCSPBATUMR CNRS 724474 rue Marcel Cachin93000 BobignyFrance Departement Soutien Medico-Chirurgical des Forces(SMCF) BP73Institut de Recherche Biomedicale des Armees(IRBA)91223 Bretigny-sur-Orge CedexFrance UniversiteParis 13 Sorbonne Paris CiteLBPS TeamCSPBATUMR CNRS 724499 Avenue Jean-Baptiste Clement93430 VilletaneuseFrance

Bone loss can occur as a result of various pathologies,traumas and injuries and poor bone healing leads to functionally debilitating condition,loss of self-sufficiency and deterioration in life *** the increasing incidence of facial trauma and the emergence of new procedural techniques,advanced scaffolds are currently developed as substitutes for bone tissue *** this study,we investigated the capability of a chemically cross-linked e-caprolactone-based poly(esterurethane-urea)(PCLU)scaffold to support bone *** vitro assays demonstrated that PCLU scaffolds could be colonized by cells through direct cell seeding and cell migration from outside to scaffold ***,PCLU scaffolds could provide a suitable environment for stem cells proliferation in a 3D spatial arrangement,and allowed osteogenic differentiation under appropriate *** vivo results revealed the osteogenic properties of PCLU scaffolds through a drilled-hole femoral bone defect repair improvement in *** histology and microtomography analysis,we showed that PCLU scaffolds fit well the bone cavity and were eventually entrapped between the newly formed ***,no sign of inflammation or rejection was *** envision that PCLU scaffolds can provide the clinicians with a substitute having appropriate characteristics for the treatment of bone defects.

关键词： bone regeneration scaffold elastomer PEUU PCLU

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