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Fan L, Guan P, Xiao C, Wen H, Wang Q, Liu C, Luo Y, Ma L, Tan G, Yu P, Zhou L, Ning C. Exosome-functionalized polyetheretherketone-based implant with immunomodulatory property for enhancing osseointegration. Bioact Mater 2021; 6:2754-2766. [PMID: 33665507 PMCID: PMC7897935 DOI: 10.1016/j.bioactmat.2021.02.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 12/12/2022] Open
Abstract
The host immune response effecting on biomaterials is critical to determine implant fates and bone regeneration property. Bone marrow stem cells (BMSCs) derived exosomes (Exos) contain multiple biosignal molecules and have been demonstrated to exhibit immunomodulatory functions. Herein, we develop a BMSC-derived Exos-functionalized implant to accelerate bone integration by immunoregulation. BMSC-derived Exos were reversibly incorporated on tannic acid (TA) modified sulfonated polyetheretherketone (SPEEK) via the strong interaction of TA with biomacromolecules. The slowly released Exos from SPEEK can be phagocytosed by co-cultured cells, which could efficiently improve the biocompatibilities of SPEEK. In vitro results showed the Exos loaded SPEEK promoted macrophage M2 polarization via the NF-κB pathway to enhance BMSCs osteogenic differentiation. Further in vivo rat air-pouch model and rat femoral drilling model assessment of Exos loaded SPEEK revealed efficient macrophage M2 polarization, desirable new bone formation, and satisfactory osseointegration. Thus, BMSC-derived Exos-functionalized implant exerted osteoimmunomodulation effect to promote osteogenesis.
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Affiliation(s)
- Lei Fan
- School of Materials Science and Engineering & National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510641, China.,Department of Orthopedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Pengfei Guan
- Department of Spine Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Cairong Xiao
- School of Materials Science and Engineering & National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510641, China
| | - Huiquan Wen
- Department of Radiology, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Qiyou Wang
- Department of Spine Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Can Liu
- Department of Spine Surgery, the First Hospital of Zhejiang University, Hangzhou, 310003, China
| | - Yian Luo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Limin Ma
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Guoxin Tan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Peng Yu
- School of Materials Science and Engineering & National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510641, China
| | - Lei Zhou
- School of Materials Science and Engineering & National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510641, China.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Chengyun Ning
- School of Materials Science and Engineering & National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510641, China
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