Department of Translational Research, Western University of Health Sciences, Pomona, California, USA.
Tissue Eng Part B Rev. 2022 Feb;28(1):22-34. doi: 10.1089/ten.TEB.2020.0253. Epub 2021 Feb 23.
Performance of the biomaterials used for regenerative medicine largely depends on biocompatibility; however, the biological mechanisms underlying biocompatibility of a biomaterial within the host system is poorly understood. In addition to the classical immune response against non-self-entities, the sterile inflammatory response could limit the compatibility of biological scaffolds. Whereas the immediate to short-term host response to a biomaterial implant have been characterized, the long-term progression of host-biomaterial relationship has not been described. This article explores the novel concept of biomaterials-driven sterile inflammation (BSI) in long-term biodegradable implants and throws light for possible explanation for the onset of BSI and the associated damage-associated molecular patterns. The understanding of BSI would advance the current strategies to improve biomaterial-host tissue integration and open novel translational avenues in biomaterials-based tissue regeneration. Impact statement Understanding the novel concept of biomaterials-driven sterile inflammation and associated damage-associated molecular patterns in long-term biodegradable implants would determine their success and improves the tissue engineering and regenerative strategies.
用于再生医学的生物材料的性能在很大程度上取决于其生物相容性;然而,宿主系统中生物材料生物相容性的生物学机制还知之甚少。除了针对非自体实体的经典免疫反应外,无菌炎症反应可能会限制生物支架的相容性。虽然已经描述了生物材料植入物的即刻至短期宿主反应,但宿主-生物材料关系的长期进展尚未描述。本文探讨了长期可生物降解植入物中生物材料驱动的无菌炎症(BSI)的新概念,并为 BSI 的发生和相关损伤相关分子模式提供了可能的解释。对 BSI 的理解将推进当前改善生物材料-宿主组织整合的策略,并为基于生物材料的组织再生开辟新的转化途径。
影响说明
了解长期可生物降解植入物中生物材料驱动的无菌炎症和相关损伤相关分子模式的新概念,将决定它们的成败,并改善组织工程和再生策略。