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炎症、骨愈合与骨坏死:从床边到实验室

Inflammation, Bone Healing and Osteonecrosis: From Bedside to Bench.

作者信息

Goodman Stuart B, Maruyama Masahiro

机构信息

Departments of Orthopaedic Surgery, Stanford University, Stanford, CA, USA.

Departments of Bioengineering, Stanford University, Stanford, CA, USA.

出版信息

J Inflamm Res. 2020 Nov 13;13:913-923. doi: 10.2147/JIR.S281941. eCollection 2020.

Abstract

Osteonecrosis of the epiphyseal and metaphyseal regions of major weight-bearing bones of the extremities is a condition that is associated with local death of bone cells and marrow in the afflicted compartment. Chronic inflammation is a prominent feature of osteonecrosis. If the persistent inflammation is not resolved, this process will result in progressive collapse and subsequent degenerative arthritis. In the pre-collapse stage of osteonecrosis, attempt at joint preservation rather than joint replacement in this younger population with osteonecrosis is a major clinical objective. In this regard, core decompression, with/without local injection of bone marrow aspirate concentrate (BMAC), is an accepted and evidence-based method to help arrest the progression and improve the outcome of early-stage osteonecrosis. However, some patients do not respond favorably to this treatment. Thus, it is prudent to consider strategies to mitigate chronic inflammation concurrent with addressing the deficiencies in osteogenesis and vasculogenesis in order to save the affected joint. Interestingly, the processes of inflammation, osteonecrosis, and bone healing are highly inter-related. Therefore, modulating the biological processes and crosstalk among cells of the innate immune system, the mesenchymal stem cell-osteoblast lineage and others are important to providing the local microenvironment for resolution of inflammation and subsequent repair. This review summarizes the clinical and biologic principles associated with osteonecrosis and provides potential cutting-end strategies for modulating chronic inflammation and facilitating osteogenesis and vasculogenesis using local interventions. Although these studies are still in the preclinical stages, it is hoped that safe, efficacious, and cost-effective interventions will be developed to save the host's natural joint.

摘要

四肢主要负重骨的骨骺和干骺端区域的骨坏死是一种与受累区域骨细胞和骨髓局部死亡相关的病症。慢性炎症是骨坏死的一个突出特征。如果持续性炎症得不到解决,这个过程将导致渐进性塌陷以及随后的退行性关节炎。在骨坏死的塌陷前期,对于这个患有骨坏死的年轻人群,尝试保留关节而非进行关节置换是一个主要的临床目标。在这方面,单纯或联合局部注射浓缩骨髓抽吸物(BMAC)的髓芯减压术,是一种被认可的、有循证依据的方法,有助于阻止早期骨坏死的进展并改善其预后。然而,一些患者对这种治疗反应不佳。因此,谨慎考虑减轻慢性炎症的策略,同时解决骨生成和血管生成方面的不足,以挽救受影响的关节是很有必要的。有趣的是,炎症、骨坏死和骨愈合过程高度相关。因此,调节先天免疫系统、间充质干细胞 - 成骨细胞谱系等细胞之间的生物学过程和相互作用,对于提供解决炎症及后续修复的局部微环境很重要。这篇综述总结了与骨坏死相关的临床和生物学原理,并提供了潜在的前沿策略,即通过局部干预来调节慢性炎症并促进骨生成和血管生成。尽管这些研究仍处于临床前阶段,但希望能开发出安全、有效且具有成本效益的干预措施来挽救宿主的天然关节。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1d61/7671464/1a8c69291537/JIR-13-913-g0001.jpg

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