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Inflammatory cell response to calcium phosphate biomaterial particles: An overview

机译:炎症细胞对磷酸钙生物材料颗粒的反应:概述

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摘要

Bone is a metabolically active and highly organized tissue consisting of a mineral phase of hydroxyapatite (HA) and amorphous calcium phosphate (CaP) crystals deposited in an organic matrix. One objective of bone tissue engineering is to mimic the chemical and structural properties of this complex tissue. CaP ceramics, such as sintered HA and beta-tricalcium phosphate, are widely used as bone substitutes or prosthesis coatings because of their osteoconductive properties. These ceramic interactions with tissues induce a cell response that can be different according to the composition of the material. In this review, we discuss inflammatory cell responses to CaP materials to provide a comprehensive overview of mechanisms governing the integration or loosening of implants, which remains a major concern in tissue engineering. A focus on the effects of the functionalization of CaP biomaterials highlights potential ways to increase tissue integration and limit rejection processes. ? 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
机译:骨骼是一种代谢活跃且组织良好的组织,由羟磷灰石(HA)的矿相和沉积在有机基质中的无定形磷酸钙(CaP)晶体组成。骨组织工程的一个目标是模仿这种复杂组织的化学和结构特性。 CaP陶瓷,例如烧结的HA和磷酸β-三钙,由于其具有骨传导性能而被广泛用作骨替代物或假体涂层。这些与组织的陶瓷相互作用会引起细胞反应,该反应可能会根据材料的成分而有所不同。在这篇综述中,我们讨论了炎症细胞对CaP材料的反应,以提供对植入物整合或疏松的控制机制的全面概述,这仍然是组织工程学中的主要关注点。对CaP生物材料功能化作用的关注强调了增加组织整合和限制排斥过程的潜在方法。 ? 2012年Acta Materialia Inc.由Elsevier Ltd.发行。保留所有权利。

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