Extracellular matrix-mimetic adhesive biomaterials for bone repair.

Extracellular matrix-mimetic adhesive biomaterials for bone repair.
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DOI:
10.1002/jbm.a.32979
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发表时间:
2011-01
影响因子:
4.9
通讯作者:
Garcia, Andres J.
Garcia, Andres J.
中科院分区:
工程技术3区
文献类型:
--
作者:
Shekaran, Asha;Garcia, Andres J.

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目前骨科生物材料的骨整合有限,导致关节成形术、骨螺钉和骨移植物等植入物失效,在美国造成了巨大的社会经济成本。这些种植体失败强调了对仿生方法的需要,该仿生方法调节宿主细胞-种植体材料反应以增强种植体骨整合和骨形成。生物启发的策略包括用ECM蛋白或ECM衍生的肽或蛋白片段功能化植入物,其参与整合素并指导成骨细胞粘附和分化。本综述讨论了1)骨ECM组成和成骨分化中涉及的关键整合素,2)使用ECM模拟肽/蛋白片段功能化的植入物,3)生长因子衍生肽促进植入物与骨的机械固定并增强大缺损内的骨愈合。
Limited osseointegration of current orthopaedic biomaterials contributes to the failure of implants such as arthroplasties, bone screws and bone grafts, which present a large socioeconomic cost within the United States. These implant failures underscore the need for biomimetic approaches that modulate host cell-implant material responses to enhance implant osseointegration and bone formation. Bioinspired strategies have included functionalizing implants with ECM proteins or ECM-derived peptides or protein fragments which engage integrins and direct osteoblast adhesion and differentiation. This review discusses 1) bone ECM composition and key integrins implicated in osteogenic differentiation, 2) the use of implants functionalized with ECM-mimetic peptides/protein fragments, and 3) growth-factor derived peptides to promote the mechanical fixation of implants to bone and to enhance bone healing within large defects.
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