Plant molecules reinforce bone repair: Novel insights into phenol-modified bone tissue engineering scaffolds for the treatment of bone defects

• Published in: Materials today bio Vol. 24; p. 100920
• Main Authors: Chen, Yuhang, Gan, Weikang, Cheng, Zhangrong, Zhang, Anran, Shi, Pengzhi, Zhang, Yukun
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.02.2024; Elsevier
• Subjects: Bone defect; Bone tissue engineering; Osteogenesis; Phenols; Polyphenols; Review; Scaffolds; RANKL; ALP; OPG; MPN; PCLA; Polyphenols; CHOP; Bone defect; CUR; UV; FGF; EGCG; Nrf-2; ADSC; ER; SIRT1; BTC; MMP; BTE; TGF; NOS; ROS; PCL; SEM; TCP; NO; HO-1; SA; HIF-1; CREB; PLLA; SBF; HUVEC; GA; MSC; GSH; CA; Runx2; BMP; OS; VEGF; Bone tissue engineering; TA; ECM; CS; ATG; TNF-α; Phenols; HA; Scaffolds; TEM; Osteogenesis
• ISSN: 2590-0064; 2590-0064
• DOI: 10.1016/j.mtbio.2023.100920

Bone defects have become a major cause of disability and death. To overcome the limitations of natural bone implants, including donor shortages and immune rejection risks, bone tissue engineering (BTE) scaffolds have emerged as a promising therapy for bone defects. Despite possessing good biocompatibility, these metal, ceramic and polymer-based scaffolds are still challenged by the harsh conditions in bone defect sites. ROS accumulation, bacterial infection, excessive inflammation, compromised blood supply deficiency and tumor recurrence negatively impact bone tissue cells (BTCs) and hinder the osteointegration of BTE scaffolds. Phenolic compounds, derived from plants and fruits, have gained growing application in treating inflammatory, infectious and aging-related diseases due to their antioxidant ability conferred by phenolic hydroxyl groups. The prevalent interactions between phenols and functional groups also facilitate their utilization in fabricating scaffolds. Consequently, phenols are increasingly incorporated into BTE scaffolds to boost therapeutic efficacy in bone defect. This review demonstrated the effects of phenols on BTCs and bone defect microenvironment, summarized the intrinsic mechanisms, presented the advances in phenol-modified BTE scaffolds and analyzed their potential risks in practical applications. Overall, phenol-modified BTE scaffolds hold great potential for repairing bone defects, offering novel patterns for BTE scaffold construction and advancing traumatological medicine. [Display omitted] •Phenols regulate bone tissue cells to enhance osteogenesis.•Phenols optimize the microenvironment of bone defects in BTE.•Phenol-modification improves bioactive & mechanical properties of BTE scaffolds.•Phenol-modified BTE scaffolds may initiate customized treatment of bone defects.