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Huang Y, Xu Y, Huang Z, Mao J, Hui Y, Rui M, Jiang X, Wu J, Ding Z, Feng Y, Gu Y, Chen L. Melatonin and calcium phosphate crystal-loaded poly(L-lactic acid) porous microspheres reprogram macrophages to improve bone repair. J Mater Chem B 2024. [PMID: 38940905 DOI: 10.1039/d3tb02965d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The bone immune microenvironment can influence the occurrence and progression of bone defects. To date, research on promoting macrophage M2 polarization to improve bone injury repair has been insufficient. In this study, we designed an injectable poly(L-lactic acid) (PLLA) porous microsphere that forms calcium phosphate crystals on its surface by binding to melatonin, followed by bionanomimetic mineralization in vitro. The microsphere is injectable and degradable, and its release of melatonin (MT) and calcium phosphate (CaP) crystals promotes macrophage M2 polarization, reprogramming of macrophages, and enhanced osteogenesis. After LPS stimulation, the proportion of M2-polarized macrophages in the MS@CaP@MT group was 39.2 ± 2.7%, significantly higher than that in other groups (P < 0.05). Further, in the MS@CaP@MT group, rats exhibited bone mineral densities of 129.4 ± 12.8 mg cc-1 at 2 weeks and 171.6 ± 13.6 mg cc-1 at 4 weeks in the defect area, which were significantly higher than those in other groups (P < 0.05). Using an animal model of femoral condylar defects, we demonstrated that MT PLLA porous microspheres loaded with calcium phosphate crystals can improve the immune microenvironment and form a microsphere-centered osteogenesis model. This significantly accelerates bone defect repair and provides a potential strategy for bone defect treatment.
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Affiliation(s)
- Yiyang Huang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Yichang Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Ziyan Huang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Jiannan Mao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
- Department of Orthopaedics, Jiangyin Clinical College, Xuzhou Medical University, No. 163 Shoushan Road, Jiang Yin 214400, China
| | - Yujian Hui
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
- Department of Orthopaedics, Jiangyin Clinical College, Xuzhou Medical University, No. 163 Shoushan Road, Jiang Yin 214400, China
| | - Min Rui
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
- Department of Orthopaedics, Jiangyin Clinical College, Xuzhou Medical University, No. 163 Shoushan Road, Jiang Yin 214400, China
| | - Xinzhao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Jie Wu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Zhouye Ding
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Yu Feng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Yong Gu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Liang Chen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
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Li Q, Chang B, Dong H, Liu X. Functional microspheres for tissue regeneration. Bioact Mater 2022; 25:485-499. [PMID: 37056261 PMCID: PMC10087113 DOI: 10.1016/j.bioactmat.2022.07.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/13/2022] [Accepted: 07/26/2022] [Indexed: 11/02/2022] Open
Abstract
As a new type of injectable biomaterials, functional microspheres have attracted increasing attention in tissue regeneration because they possess some advantageous properties compared to other biomaterials, including hydrogels. A variety of bio-inspired microspheres with unique structures and properties have been developed as cellular carriers and drug delivery vehicles in recent years. In this review, we provide a comprehensive summary of the progress of functional and biodegradable microspheres that have been used for tissue regeneration over the last two decades. First, we briefly introduce the biomaterials and general methods for microsphere fabrication. Next, we focus on the newly developed technologies for preparing functional microspheres, including macroporous microspheres, nanofibrous microspheres, hollow microspheres, core-shell structured microspheres, and surface-modified functional microspheres. After that, we discuss the application of functional microspheres for tissue regeneration, specifically for bone, cartilage, dental, neural, cardiac, and skin tissue regeneration. Last, we present our perspectives and future directions of functional microspheres as injectable carriers for the future advancement of tissue regeneration.
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Yuan S, Shen Y, Li Z. Injectable Cell- and Growth Factor-Free Poly(4-hydroxybutyrate) (P4HB) Microspheres with Open Porous Structures and Great Efficiency of Promoting Bone Regeneration. ACS APPLIED BIO MATERIALS 2021; 4:4432-4440. [PMID: 35006855 DOI: 10.1021/acsabm.1c00188] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Delivering injectable microspheres in a minimally invasive way to repair complexly shaped tissue defects renders them attractive for clinical use. Especially, open porous microspheres that provide sufficient internal space for cell proliferation and nutrient diffusions can efficiently aid to completing reconstructions of tissue defects. In this work, chemically synthesized and biodegradable poly(4-hydroxybutyrate) (P4HB), which is the U.S. FDA-approved polyhydroxyalkanoate (PHA), was employed for fabricating open porous microspheres using a double-emulsion solvent evaporation method. The influences of fabrication parameters were discussed. It was found that the P4HB-based cell-free and growth factor-free open porous microspheres can enhance osteoblast differentiation of adipose-derived stem cells in vitro and accelerate rat calvarial bone-defect healing in vivo. These results demonstrated that the injectable open porous P4HB microspheres present a remarkable potential in bone tissue regeneration.
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Affiliation(s)
- Shuaishuai Yuan
- Key Laboratory of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.,WEGO Holding Company Limited, Weihai 264210, P. R. China
| | - Yong Shen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.,College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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Effect of Cerium-Containing Hydroxyapatite in Bone Repair in Female Rats with Osteoporosis Induced by Ovariectomy. MINERALS 2021. [DOI: 10.3390/min11040377] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Osteoporosis is a public health problem, with bone loss being the main consequence. Hydroxyapatite (HA) has been largely used as a bioceramic to stimulate bone growth. In our work, a cerium-containing HA (Ce-HA) has been proposed and its effects on the antimicrobial and bone-inducing properties were investigated. The synthesis of the materials occurred by the suspension–precipitation method (SPM). The XRD (X-ray Diffraction) confirmed the crystalline phase, and the Rietveld refinement confirmed the crystallization of HA and Ce-HA in a hexagonal crystal structure in agreement with ICSD n° 26205. Characterizations by FT-IR (Fourier Transform Infrared Spectroscopy), XPS (X-ray Photoemission Spectroscopy), and FESEM-EDS (Field Emission Scanning Electron Microscope-Energy Dispersive X-ray Spectroscopy) confirmed the presence of cerium (Ce3+ and Ce4+). The antibacterial activity of Has was evaluated against Staphylococcus aureus 25,923 and Escherichia coli 25,922 strains, which revealed that the material has antimicrobial properties and the cytotoxicity assay indicated that Ce-containing HA was classified as non-toxic. The effects of Ce-HA on bone repair, after application in bone defects in the tibia of female rats with osteoporosis induced by ovariectomy (OVX), were evaluated. After 15 and 30 days of implantation, the samples were analyzed by Raman, histology and X-ray microtomography. The results showed that the animals that had the induced bone defects filled with the Ce-HA materials had more expressive bone neoformation than the control group.
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Zhang Y, Hu J, Zhao X, Xie R, Qin T, Ji F. Mechanically Robust Shape Memory Polyurethane Nanocomposites for Minimally Invasive Bone Repair. ACS APPLIED BIO MATERIALS 2019; 2:1056-1065. [PMID: 35021395 DOI: 10.1021/acsabm.8b00655] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yuanchi Zhang
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Jinlian Hu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
- Smart Biomaterial Research Center, The Hong Kong Polytechnic University, Shen Zhen Base, Hong Kong 999077, China
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
| | - Ruiqi Xie
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Tingwu Qin
- Institute of Stem Cell and Tissue Engineering, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Fenglong Ji
- School of Textiles Materials and Engineering, Wuyi University, Jiangmen 529020, China
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Lin CY, Luo SC, Yu JS, Chen TC, Su WF. Peptide-Based Polyelectrolyte Promotes Directional and Long Neurite Outgrowth. ACS APPLIED BIO MATERIALS 2018; 2:518-526. [DOI: 10.1021/acsabm.8b00697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Chia-Yu Lin
- Department of Materials Science and Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Shyh-Chyang Luo
- Department of Materials Science and Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan
| | - Jia-Shing Yu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan
| | - Ta-Ching Chen
- Department of Ophthalmology, College of Medicine, National Taiwan University, Taipei 10002, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Tapei 10002, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Fang Su
- Department of Materials Science and Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan
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