Biological regulation of bone quality.

Biological regulation of bone quality.
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DOI:
10.1007/s11914-014-0213-4
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发表时间:
2014-09
影响因子:
4.3
通讯作者:
Alliston, Tamara
Alliston, Tamara
中科院分区:
医学2区
文献类型:
--
作者:
Alliston, Tamara

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骨抵抗骨折的能力是由骨量和骨质量共同决定的。与骨量一样,骨质量也受到严格的调节。骨质量的许多方面,这篇评论的重点是控制骨细胞外基质(ECM)的材料质量的生物学机制。骨ECM质量取决于ECM成分和组织。影响骨ECM的矿物或有机成分的蛋白质和信号传导途径影响骨ECM材料性质,例如弹性模量和硬度。这些特性也对通过成骨细胞、破骨细胞和骨细胞调节骨重建的途径敏感。几种细胞外蛋白、信号通路、细胞内效应物和转录调控网络已经涉及骨ECM质量的控制。对这些机制的分子理解将阐明骨质量的生物学控制,并为预防骨脆性的治疗方法的发展提出新的目标。
The ability of bone to resist fracture is determined by the combination of bone mass and bone quality. Like bone mass, bone quality is carefully regulated. Of the many aspects of bone quality, this review focuses on biological mechanisms that control the material quality of the bone extracellular matrix (ECM). Bone ECM quality depends upon ECM composition and organization. Proteins and signaling pathways that affect the mineral or organic constituents of bone ECM impact bone ECM material properties, such as elastic modulus and hardness. These properties are also sensitive to pathways that regulate bone remodeling by osteoblasts, osteoclasts, and osteocytes. Several extracellular proteins, signaling pathways, intracellular effectors, and transcription regulatory networks have been implicated in the control of bone ECM quality. A molecular understanding of these mechanisms will elucidate the biological control of bone quality and suggest new targets for the development of therapies to prevent bone fragility.
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