Biomaterial-induced macrophage polarization for bone regeneration

• Published in: Chinese chemical letters Vol. 34; no. 6; pp. 107925 - 171
• Main Authors: Chen, Long, Yao, Zhicheng, Zhang, Siqin, Tang, Kuihan, Yang, Qiming, Wang, Yuanzheng, Li, Bohan, Nie, Yingjie, Tian, Xiaobin, Sun, Li
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2023; Department of Orthopedics,Guizhou Provincial People's Hospital,Guiyang 550000,China; The Central Laboratory,Guizhou Provincial People's Hospital,Guiyang 550000,China%Department of Orthopedics,The Affiliated Hospital of Guizhou Medical University,Guiyang 550000,China; Medical College,Guizhou University,Guiyang 550000,China%Department of Materials Science and Engineering,Translational Tissue Engineering Center,Johns Hopkins University,Baltimore,MD 21218,United States%Department of Endocrinology and Metabolism,Guizhou Provincial People's Hospital,Guiyang 550000,China%Department of Orthopedics,Guizhou Provincial People's Hospital,Guiyang 550000,China%Medical College,Guizhou University,Guiyang 550000,China
• Subjects: Biomaterial; Bone regeneration; Immune response; Macrophage polarization; Nano materials; Biomaterial; Immune response; Macrophage polarization; Bone regeneration; Nano materials
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2022.107925

As the main target cells of immune regulation, macrophages play an important role in the bone regeneration process. Macrophages can be polarized into the M1 and M2 types under the stimulation of different factors. They have proinflammatory and anti-inflammatory effects, respectively, and play key roles in different stages of bone regeneration. The ratio of M1 to M2 macrophages can be regulated by immunomodulatory biomaterials to promote bone repair and regeneration. In this paper, we review the recent literature on the chemical, physical and biological properties of biomaterials and the regulation of macrophage polarization under the influence of other factors. We also cover new methods for preparing immunomodulatory biomaterials for bone regeneration. This paper will provide new design ideas for the development of biomaterials with immunological properties and will support the clinical translation of bone-related medical biomaterials. This review summarized that macrophages are important in tissue repair process after orthopedic implantation. An ideal orthopedic implant should have immunomodulatory effect on regulating macrophages behavior. However, challenges still exist in investigating the time, sequence, and intensity of the transition between different phenotypes of macrophages during the tissue repair process. Recent studies have developed construction of macrophage-regulated orthopedic implants by changing the material properties. [Display omitted]