From the Sports Medicine Institute, Hospital for Special Surgery, New York, NY.
J Am Acad Orthop Surg. 2023 Jun 15;31(12):604-613. doi: 10.5435/JAAOS-D-22-00808. Epub 2023 May 1.
Orthobiologic agents, including platelet-rich plasma, connective tissue progenitor cells derived from bone marrow, adipose, and other tissues, and purified cytokines and small peptides, have tremendous potential to target deficiencies in soft-tissue healing. The principal limitation currently is the variability in the composition and biologic activity of orthobiologic formulations, making it difficult to choose the optimal treatment for a specific tissue or pathology. Current data suggest that orthobiologics are "symptom-modifying," but there is little evidence that they can lead to true tissue regeneration ("structure-modifying"). A critically important need at this time is to identify sentinel markers of potency and biologic activity for different orthobiologic formulations so that we can match the treatment to the desired biologic effect for a specific tissue or pathology. Improved understanding of the underlying cellular and molecular mechanisms of tissue degeneration and repair will allow a precision medicine approach where we can choose the optimal orthobiologic treatment of specific orthopaedic problems. It is important for the clinician to be aware of the evolving regulatory status of orthobiologic treatments. Emerging therapies such as the use of exosomes and gene therapy approaches hold great promise as improved methods to both treat symptoms and affect tissue regeneration.
骨生物学制剂,包括富含血小板的血浆、源自骨髓、脂肪和其他组织的结缔组织祖细胞,以及纯化的细胞因子和小肽,具有极大的潜力来针对软组织愈合的缺陷。目前的主要限制是骨生物学制剂的组成和生物学活性存在差异,使得难以选择针对特定组织或病理学的最佳治疗方法。目前的数据表明,骨生物学制剂是“症状修饰”的,但几乎没有证据表明它们可以导致真正的组织再生(“结构修饰”)。目前一个非常重要的需求是确定不同骨生物学制剂的效力和生物学活性的哨兵标志物,以便我们可以将治疗方法与特定组织或病理学的所需生物学效果相匹配。对组织退化和修复的潜在细胞和分子机制的深入了解将允许采用精准医学方法,我们可以选择针对特定骨科问题的最佳骨生物学治疗方法。临床医生了解骨生物学治疗的不断发展的监管状况非常重要。新兴疗法,如外泌体的使用和基因治疗方法,作为改善治疗症状和影响组织再生的方法具有很大的潜力。