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Mesenchymal stem cell proliferation and morphological analysis on interconnected macroporous structures

机译:间充质干细胞的增殖及相互连接的大孔结构的形态分析

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Calcium phosphate ceramics are widely used as bone substitutes since they are biocompatible and bioactive. Given that their chemical composition is close to natural bone, calcium phosphate ceramics are promising bone substitute materials in orthopaedics, maxillofacial surgery and dentistry. Hydroxyapatite (HA) and tricalcium phosphate (TCP) are the most commonly used calcium phosphates, because their calcium/phosphorus (Ca/P) ratios are close to that of natural bone and they are relatively stable in physiological environment. Furthermore, other critical parameters must be accomplished when designing a biomaterial for bone regeneration, namely: pore size, shape and interconnectivity, Porosity is one of the most important factors since it influences the adhesion, migration nutrient supply and ultimately, proliferation of mesenchymal stem cells. In this study, HA scaffolds with controlled porosity were obtained and their capacity to support human and rat mesenchymal stem cells attachment and proliferation was evaluated.
机译:磷酸钙陶瓷具有生物相容性和生物活性,因此被广泛用作骨替代品。考虑到它们的化学组成接近于天然骨,磷酸钙陶瓷是骨科,颌面外科和牙科领域中很有希望的骨替代材料。羟基磷灰石(HA)和磷酸三钙(TCP)是最常用的磷酸钙,因为它们的钙/磷(Ca / P)比值接近天然骨骼,并且在生理环境中相对稳定。此外,在设计用于骨再生的生物材料时,还必须完成其他关键参数,即:孔径,形状和互连性。孔隙度是最重要的因素之一,因为它会影响粘附,迁移营养物供应并最终影响间充质干细胞的增殖。 。在这项研究中,获得了具有受控孔隙率的HA支架,并评估了它们支持人和大鼠间充质干细胞附着和增殖的能力。

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