1
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Damiati LA, El Soury M. Bone-nerve crosstalk: a new state for neuralizing bone tissue engineering-A mini review. Front Med (Lausanne) 2024; 11:1386683. [PMID: 38690172 PMCID: PMC11059066 DOI: 10.3389/fmed.2024.1386683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/18/2024] [Indexed: 05/02/2024] Open
Abstract
Neuro bone tissue engineering is a multidisciplinary field that combines both principles of neurobiology and bone tissue engineering to develop innovative strategies for repairing and regenerating injured bone tissues. Despite the fact that regeneration and development are considered two distinct biological processes, yet regeneration can be considered the reactivation of development in later life stages to restore missing tissues. It is noteworthy that the regeneration capabilities are distinct and vary from one organism to another (teleost fishes, hydra, humans), or even in the same organism can vary dependent on the injured tissue itself (Human central nervous system vs. peripheral nervous system). The skeletal tissue is highly innervated, peripheral nervous system plays a role in conveying the signals and connecting the central nervous system with the peripheral organs, moreover it has been shown that they play an important role in tissue regeneration. Their regeneration role is conveyed by the different cells' resident in it and in its endoneurium (fibroblasts, microphages, vasculature associated cells, and Schwann cells) these cells secrete various growth factors (NGF, BDNF, GDNF, NT-3, and bFGF) that contribute to the regenerative phenotype. The peripheral nervous system and central nervous system synchronize together in regulating bone homeostasis and regeneration through neurogenic factors and neural circuits. Receptors of important central nervous system peptides such as Serotonin, Leptin, Semaphorins, and BDNF are expressed in bone tissue playing a role in bone homeostasis, metabolism and regeneration. This review will highlight the crosstalk between peripheral nerves and bone in the developmental stages as well as in regeneration and different neuro-bone tissue engineering strategies for repairing severe bone injuries.
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Affiliation(s)
- Laila A. Damiati
- Department of Biological Sciences, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Marwa El Soury
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Orbassano, Italy
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2
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Goh M, Min K, Kim YH, Tae G. Chemically heparinized PEEK via a green method to immobilize bone morphogenetic protein-2 (BMP-2) for enhanced osteogenic activity. RSC Adv 2024; 14:1866-1874. [PMID: 38192324 PMCID: PMC10772708 DOI: 10.1039/d3ra07660a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/25/2023] [Indexed: 01/10/2024] Open
Abstract
Osseointegration remains one of the major challenges in the success of bone-related implants. Recently, polyetheretherketone (PEEK) has emerged as an alternative material in orthopedic and dental applications due to its bone-mimicking mechanical properties. However, its bioinertness resulting in poor osseointegration has limited its potential application. So, the surface modification of PEEK with bone morphogenetic protein-2 (BMP-2) can be a potential approach for improving osseointegration. In this study, we proposed the chemical modification of heparin onto PEEK through an environmentally benign method to exploit the BMP-2 binding affinity of heparin. The heparin was successfully functionalized on the PEEK surface via a combination of ozone and UV treatment without using organic solvents or chemicals. Furthermore, BMP-2 was efficiently immobilized on PEEK and exhibited a sustained release of BMP-2 compared to the pristine PEEK with enhancement of bioactivity in terms of proliferation as well as osteogenic differentiation of MG-63. The significant synergistic effect of BMP-2 and heparin grafting on osteogenic differentiation of MG-63 was observed. Overall, we demonstrated a relatively safe method where no harsh chemical reagent or organic solvent was involved in the process of heparin grafting onto PEEK. The BMP-2 loaded, heparin-grafted PEEK could serve as a potential platform for osseointegration improvement of PEEK-based bone implants.
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Affiliation(s)
- MeeiChyn Goh
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Kiyoon Min
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Young Ha Kim
- Korea Institute of Science and Technology Hwarang-ro 14-gil 5, Seongbuk-gu Seoul 02792 Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
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3
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Gu H, Zhu Y, Yang J, Jiang R, Deng Y, Li A, Fang Y, Wu Q, Tu H, Chang H, Wen J, Jiang X. Liver-Inspired Polyetherketoneketone Scaffolds Simulate Regenerative Signals and Mobilize Anti-Inflammatory Reserves to Reprogram Macrophage Metabolism for Boosted Osteoporotic Osseointegration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302136. [PMID: 37400369 PMCID: PMC10477864 DOI: 10.1002/advs.202302136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/21/2023] [Indexed: 07/05/2023]
Abstract
Tissue regeneration is regulated by morphological clues of implants in bone defect repair. Engineered morphology can boost regenerative biocascades that conquer challenges such as material bioinertness and pathological microenvironments. Herein, a correlation between the liver extracellular skeleton morphology and the regenerative signaling, namely hepatocyte growth factor receptor (MET), is found to explain the mystery of rapid liver regeneration. Inspired by this unique structure, a biomimetic morphology is prepared on polyetherketoneketone (PEKK) via femtosecond laser etching and sulfonation. The morphology reproduces MET signaling in macrophages, causing positive immunoregulation and optimized osteogenesis. Moreover, the morphological clue activates an anti-inflammatory reserve (arginase-2) to translocate retrogradely from mitochondria to the cytoplasm due to the difference in spatial binding of heat shock protein 70. This translocation enhances oxidative respiration and complex II activity, reprogramming the metabolism of energy and arginine. The importance of MET signaling and arginase-2 in the anti-inflammatory repair of biomimetic scaffolds is also verified via chemical inhibition and gene knockout. Altogether, this study not only provides a novel biomimetic scaffold for osteoporotic bone defect repair that can simulate regenerative signals, but also reveals the significance and feasibility of strategies to mobilize anti-inflammatory reserves in bone regeneration.
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Affiliation(s)
- Hao Gu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yuhui Zhu
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Jiawei Yang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Ruixue Jiang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yuwei Deng
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Anshuo Li
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Yingjing Fang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Qianju Wu
- Stomatological Hospital of Xiamen Medical CollegeXiamen Key Laboratory of Stomatological Disease Diagnosis and TreatmentXiamenFujian361008China
| | - Honghuan Tu
- State Key Laboratory of Advanced Optical Communication Systems and NetworksSchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai200240China
| | - Haishuang Chang
- Shanghai Institute of Precision MedicineShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghai200125China
| | - Jin Wen
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
| | - Xinquan Jiang
- Department of ProsthodonticsShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghai Research Institute of StomatologyShanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai200125China
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4
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Talebian S, Mendes B, Conniot J, Farajikhah S, Dehghani F, Li Z, Bitoque D, Silva G, Naficy S, Conde J, Wallace GG. Biopolymeric Coatings for Local Release of Therapeutics from Biomedical Implants. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207603. [PMID: 36782094 PMCID: PMC10131825 DOI: 10.1002/advs.202207603] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Indexed: 06/18/2023]
Abstract
The deployment of structures that enable localized release of bioactive molecules can result in more efficacious treatment of disease and better integration of implantable bionic devices. The strategic design of a biopolymeric coating can be used to engineer the optimal release profile depending on the task at hand. As illustrative examples, here advances in delivery of drugs from bone, brain, ocular, and cardiovascular implants are reviewed. These areas are focused to highlight that both hard and soft tissue implants can benefit from controlled localized delivery. The composition of biopolymers used to achieve appropriate delivery to the selected tissue types, and their corresponding outcomes are brought to the fore. To conclude, key factors in designing drug-loaded biopolymeric coatings for biomedical implants are highlighted.
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Affiliation(s)
- Sepehr Talebian
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyNSW2006Australia
- Nano Institute (Sydney Nano)The University of SydneySydneyNSW2006Australia
| | - Bárbara Mendes
- ToxOmicsNOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboa1169‐056Portugal
| | - João Conniot
- ToxOmicsNOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboa1169‐056Portugal
| | - Syamak Farajikhah
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyNSW2006Australia
- Nano Institute (Sydney Nano)The University of SydneySydneyNSW2006Australia
| | - Fariba Dehghani
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyNSW2006Australia
- Nano Institute (Sydney Nano)The University of SydneySydneyNSW2006Australia
| | - Zhongyan Li
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyNSW2006Australia
| | - Diogo Bitoque
- ToxOmicsNOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboa1169‐056Portugal
| | - Gabriela Silva
- ToxOmicsNOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboa1169‐056Portugal
| | - Sina Naficy
- School of Chemical and Biomolecular EngineeringThe University of SydneySydneyNSW2006Australia
- Nano Institute (Sydney Nano)The University of SydneySydneyNSW2006Australia
| | - João Conde
- ToxOmicsNOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboa1169‐056Portugal
| | - Gordon G. Wallace
- Intelligent Polymer Research InstituteARC Centre of Excellence for Electromaterials ScienceAIIM FacilityUniversity of WollongongSydneyNSW2522Australia
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5
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Quarterman JC, Phruttiwanichakun P, Fredericks DC, Salem AK. Zoledronic Acid Implant Coating Results in Local Medullary Bone Growth. Mol Pharm 2022; 19:4654-4664. [PMID: 36378992 PMCID: PMC9727731 DOI: 10.1021/acs.molpharmaceut.2c00644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Osteoarthritis (OA) can necessitate surgical interventions to restore the function of the joint in severe cases. Joint replacement surgery is one of the procedures implemented to replace the damaged joint with prosthetic implants in severe cases of OA. However, after successful implantation, a fraction of OA patients still require revision surgery due to aseptic prosthetic loosening. Insufficient osseointegration is one of the factors that contribute to such loosening of the bone implant, which is commonly made from titanium-based materials. Zoledronic acid (ZA), a potent bisphosphonate agent, has been previously shown to enhance osseointegration of titanium implants. Herein, we fabricated ZA/Ca composites using a reverse microemulsion method and coated them with 1,2-dioleoyl-sn-glycero-3-phosphate monosodium salt (DOPA) to form ZA/Ca/DOPA composites. Titanium alloy screws were subsequently dip-coated with a suspension of the ZA/Ca/DOPA composites and poly(lactic-co-glycolic) acid (PLGA) in chloroform to yield Za/PLGA-coated screws. The coated screws exhibited a biphasic in vitro release profile with an initial burst release within 48 h, followed by a sustained release over 1 month. To assess their performance in vivo, the Za/PLGA screws were then implanted into the tibiae of Sprague-Dawley rats. After 8 weeks, microCT imaging showed new bone growth along the medullary cavity around the implant site, supporting the local release of ZA to enhance bone growth around the implant. Histological staining further confirmed the presence of new mineralized medullary bone growth resembling the cortical bone. Such local medullary growth represents an opportunity for future studies with alternative coating methods to fine-tune the local release of ZA from the coating and enhance complete osseointegration of the implant.
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Affiliation(s)
- Juliana C. Quarterman
- Department
of Pharmaceutical Sciences and Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
| | - Pornpoj Phruttiwanichakun
- Department
of Pharmaceutical Sciences and Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
| | - Douglas C. Fredericks
- The
Bone Healing Research Laboratory, Department of Orthopedics and Rehabilitation,
Carver College of Medicine, University of
Iowa, Iowa City, Iowa 52242, United
States
| | - Aliasger K. Salem
- Department
of Pharmaceutical Sciences and Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States,
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6
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Tailored Polyelectrolyte Multilayer Systems by Variation of Polyelectrolyte Composition and EDC/NHS Cross-Linking: Controlled Drug Release vs. Drug Reservoir Capabilities and Cellular Response for Improved Osseointegration. Polymers (Basel) 2022; 14:polym14204315. [PMID: 36297892 PMCID: PMC9609345 DOI: 10.3390/polym14204315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
Polyelectrolyte multilayers (PEM) are versatile tools used to investigate fundamental interactions between material-related parameters and the resulting performance in stem cell differentiation, respectively, in bone tissue engineering. In the present study, we investigate the suitability of PEMs with a varying collagen content for use as drug carriers for the human bone morphogenetic protein 2 (rhBMP-2). We use three different PEM systems consisting either of the positively charged poly-L-lysine or the glycoprotein collagen type I and the negatively charged glycosaminoglycan heparin. For a specific modification of the loading capacity and the release kinetics, the PEMs were stepwise cross-linked before loading with cytokine. We demonstrate the possibility of immobilizing significant amounts of rhBMP-2 in all multilayer systems and to specifically tune its release via cross-linking. Furthermore, we prove that the drug release of rhBMP-2 plays only a minor role in the differentiation of osteoprogenitor cells. We find a significantly higher influence of the immobilized rhBMP-2 within the collagen-rich coatings that obviously represent an excellent mimicry of the native extracellular matrix. The cytokine immobilized in its bioactive form was able to achieve an increase in orders of magnitude both in the early stages of differentiation and in late calcification compared to the unloaded layers.
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7
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Liu Y, He L, Li J, Luo J, Liang K, Yin D, Tao S, Yang J, Li J. Mussel-Inspired Organic–Inorganic Implant Coating Based on a Layer-by-Layer Method for Anti-infection and Osteogenesis. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yifang Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- School of Stomatology, Shandong First Medical University, Jinan 250021, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Libang He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
- Med-X Center for Materials, Sichuan University, Chengdu 610065, P. R. China
| | - Jun Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Kunneng Liang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Derong Yin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Siying Tao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jiaojiao Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jiyao Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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8
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Application of biomolecules modification strategies on PEEK and its composites for osteogenesis and antibacterial properties. Colloids Surf B Biointerfaces 2022; 215:112492. [PMID: 35430485 DOI: 10.1016/j.colsurfb.2022.112492] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/24/2022] [Accepted: 04/04/2022] [Indexed: 12/24/2022]
Abstract
As orthopedic and dental implants, polyetheretherketone (PEEK) is expected to be a common substitute material of titanium (Ti) and its alloys due to its good biocompatibility, chemical stability, and elastic modulus close to that of bone tissue. It could avoid metal allergy and bone resorption caused by the stress shielding effect of Ti implants, widely studied in the medical field. However, the lack of biological activity is not conducive to the clinical application of PEEK implants. Therefore, the surface modification of PEEK has increasingly become one of the research hotspots. Researchers have explored various biomolecules modification methods to effectively enhance the osteogenic and antibacterial activities of PEEK and its composites. Therefore, this review mainly summarizes the recent research of PEEK modified by biomolecules and discusses the further research directions to promote the clinical transformation of PEEK implants.
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9
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Leal M, Leiva Á, Villalobos V, Palma V, Carrillo D, Edwards N, Maine A, Cauich-Rodriguez J, Tamayo L, Neira-Carrillo A, Urzúa M. Blends based on amino acid functionalized poly (ethylene-alt-maleic anhydride) polyelectrolytes and PEO for nanofiber elaboration:biocompatible and angiogenic polyelectrolytes. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Zhu WQ, Li K, Su S, Chen W, Liu Y, Qiu J. Effects of Zinc Ions Released From Ti-NW-Zn Surface on Osteogenesis and Angiogenesis In Vitro and in an In Vivo Zebrafish Model. Front Bioeng Biotechnol 2022; 10:848769. [PMID: 35528211 PMCID: PMC9068938 DOI: 10.3389/fbioe.2022.848769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/16/2022] [Indexed: 11/25/2022] Open
Abstract
Zinc-modified titanium materials have been widely applied in oral implants. Among them, our previous studies have also successfully prepared a novel acid-etched microstructured titanium surface modified with zinc-containing nanowires (Ti-NW-Zn) and proved its excellent biocompatibility. It is well known that the functional regulation between angiogenesis and osteogenesis is of great importance for bone remodeling around implants. However, there are few reports concerning the biological safety of zinc ions released from materials and the appropriate concentration of released zinc ions which was more conducive to angiogenesis and bone regeneration. In this study, we investigated the effects of zinc ions released from Ti-NW-Zn surfaces on angiogenesis and osteogenesis using the zebrafish model and revealed the relationship between angiogenesis and osteogenesis via HUVECs and MC3T3-E1s in vitro. We found that the zinc ions released from Ti-NW-Zn surfaces, with a concentration lower than median lethal concentrations (LCs) of zebrafish, were biologically safe and promote osteogenesis and angiogenesis in vivo. Moreover, the proper concentration of zinc ions could induce the proliferation of HUVECs and osteogenic differentiation. The positive effects of the appropriate concentration of zinc ions on osteoblast behaviors might be regulated by activating the MAPK/ERK signaling pathway. These aspects may provide new sights into the mechanisms underlying zinc-modified titanium surfaces between osteogenesis and angiogenesis, to lay the foundation for further improving the materials, meanwhile, promoting the applications in dentistry.
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Affiliation(s)
- Wen-Qing Zhu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Kang Li
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Shan Su
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Wei Chen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Yao Liu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Jing Qiu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
- *Correspondence: Jing Qiu,
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11
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Chen J, Cao G, Li L, Cai Q, Dunne N, Li X. Modification of polyether ether ketone for the repairing of bone defects. Biomed Mater 2022; 17. [PMID: 35395651 DOI: 10.1088/1748-605x/ac65cd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/08/2022] [Indexed: 11/12/2022]
Abstract
Bone damage as a consequence of disease or trauma is a common global occurrence. For bone damage treatment - bone implant materials are necessary across three classifications of surgical intervention (i.e. fixation, repair, and replacement). Many types of bone implant materials have been developed to meet the requirements of bone repair. Among them, polyether ether ketone (PEEK) has been considered as one of the next generation of bone implant materials, owing to its advantages related to good biocompatibility, chemical stability, X-ray permeability, elastic modulus comparable to natural bone, as well as the ease of processing and modification. However, as PEEK is a naturally bioinert material, some modification is needed to improve its integration with adjacent bones after implantation. Therefore, it has become a very hot topic of biomaterials research and various strategies for the modification of PEEK including blending, 3D printing, coating, chemical modification and the introduction of bioactive and/or antibacterial substances have been proposed. In this systematic review, the recent advances in modification of PEEK and its application prospect as bone implants are summarized, and the remaining challenges are also discussed.
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Affiliation(s)
- Junfeng Chen
- Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, Beijing, 100083, CHINA
| | - Guangxiu Cao
- Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, Beijing, 100083, CHINA
| | - Linhao Li
- Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, 100083, CHINA
| | - Qiang Cai
- Tsinghua University Department of Materials Science and Engineering, 30 shuangqing Rd, Haidian District, Beijing, Beijing, 100084, CHINA
| | - Nicholas Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Dublin, D09, IRELAND
| | - Xiaoming Li
- Biological Science and Medical Engineering, Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, Beijing, 100083, CHINA
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12
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Yu D, Lei X, Zhu H. Modification of polyetheretherketone (PEEK) physical features to improve osteointegration. J Zhejiang Univ Sci B 2022; 23:189-203. [PMID: 35261215 DOI: 10.1631/jzus.b2100622] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Polyetheretherketone (PEEK) has been widely applied in orthopedics because of its excellent mechanical properties, radiolucency, and biocompatibility. However, the bioinertness and poor osteointegration of PEEK have greatly limited its further application. Growing evidence proves that physical factors of implants, including their architecture, surface morphology, stiffness, and mechanical stimulation, matter as much as the composition of their surface chemistry. This review focuses on the multiple strategies for the physical modification of PEEK implants through adjusting their architecture, surface morphology, and stiffness. Many research findings show that transforming the architecture and incorporating reinforcing fillers into PEEK can affect both its mechanical strength and cellular responses. Modified PEEK surfaces at the macro scale and micro/nano scale have positive effects on cell-substrate interactions. More investigations are necessary to reach consensus on the optimal design of PEEK implants and to explore the efficiency of various functional implant surfaces. Soft-tissue integration has been ignored, though evidence shows that physical modifications also improve the adhesion of soft tissue. In the future, ideal PEEK implants should have a desirable topological structure with better surface hydrophilicity and optimum surface chemistry.
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Affiliation(s)
- Dan Yu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Xiaoyue Lei
- Department of Stomatology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Huiyong Zhu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
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13
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Zhang Z, Zeng J, Groll J, Matsusaki M. Layer-by-layer assembly methods and their biomedical applications. Biomater Sci 2022; 10:4077-4094. [DOI: 10.1039/d2bm00497f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Various biomedical applications arising due to the development of different LbL assembly methods with unique process properties.
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Affiliation(s)
- Zhuying Zhang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Jinfeng Zeng
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Research Fellow of Japan Society for the Promotion of Science, Kojimachi Business Center Building, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB) and Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Gherasim O, Grumezescu AM, Grumezescu V, Andronescu E, Negut I, Bîrcă AC, Gălățeanu B, Hudiță A. Bioactive Coatings Loaded with Osteogenic Protein for Metallic Implants. Polymers (Basel) 2021; 13:4303. [PMID: 34960852 PMCID: PMC8703935 DOI: 10.3390/polym13244303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/27/2022] Open
Abstract
Osteoconductive and osteoinductive coatings represent attractive and tunable strategies towards the enhanced biomechanics and osseointegration of metallic implants, providing accurate local modulation of bone-to-implant interface. Composite materials based on polylactide (PLA) and hydroxyapatite (HAp) are proved beneficial substrates for the modulation of bone cells' development, being suitable mechanical supports for the repair and regeneration of bone tissue. Moreover, the addition of osteogenic proteins represents the next step towards the fabrication of advanced biomaterials for hard tissue engineering applications, as their regulatory mechanisms beneficially contribute to the new bone formation. In this respect, laser-processed composites, based on PLA, Hap, and bone morphogenetic protein 4(BMP4), are herein proposed as bioactive coatings for metallic implants. The nanostructured coatings proved superior ability to promote the adhesion, viability, and proliferation of osteoprogenitor cells, without affecting their normal development and further sustaining the osteogenic differentiation of the cells. Our results are complementary to previous studies regarding the successful use of chemically BMP-modified biomaterials in orthopedic and orthodontic applications.
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Affiliation(s)
- Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (E.A.); (A.C.B.)
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania;
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (E.A.); (A.C.B.)
- Academy of Romanian Scientists, Ilfov No. 3, 50044 Bucharest, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania;
- Academy of Romanian Scientists, Ilfov No. 3, 50044 Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (E.A.); (A.C.B.)
- Academy of Romanian Scientists, Ilfov No. 3, 50044 Bucharest, Romania
| | - Irina Negut
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania;
| | - Alexandra Cătălina Bîrcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (E.A.); (A.C.B.)
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (B.G.); (A.H.)
| | - Ariana Hudiță
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (B.G.); (A.H.)
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Liu J, Kang H, Lu J, Dai Y, Wang F. Experimental study of the effects of hypoxia simulator on osteointegration of titanium prosthesis in osteoporotic rats. BMC Musculoskelet Disord 2021; 22:944. [PMID: 34763682 PMCID: PMC8588664 DOI: 10.1186/s12891-021-04777-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 10/06/2021] [Indexed: 12/27/2022] Open
Abstract
Background Poor osseointegration is the key reason for implant failure after arthroplasty,whether under osteoporotic or normal bone conditions. To date, osseointegration remains a major challenge. Recent studies have shown that deferoxamine (DFO) can accelerate osteogenesis by activating the hypoxia signaling pathway. The purpose of this study was to test the following hypothesis: after knee replacement, intra-articular injection of DFO will promote osteogenesis and osseointegration with a 3D printed titanium prosthesis in the bones of osteoporotic rats. Materials and methods Ninety female Sprague–Dawley rats were used for the experiment. Ten rats were used to confirm the successful establishment of the osteoporosis model: five rats in the sham operation group and five rats in the ovariectomy group. After ovariectomy and knee arthroplasty were performed, the remaining 80 rats were randomly divided into DFO and control groups (n = 40 per group). The two groups were treated by intraarticular injection of DFO and saline respectively. After 2 weeks, polymerase chain reaction (PCR) and immunohistochemistry were used to evaluate the levels of HIF-1a, VEGF, and CD31. HIF-1a and VEGF have been shown to promote angiogenesis and bone regeneration, and CD31 is an important marker of angiogenesis. After 12 weeks, the specimens were examined by micro-computed tomography (micro-CT), biomechanics, and histopathology to evaluate osteogenesis and osseointegration. Results The results of PCR showed that the mRNA levels of VEGF and CD31 in the DFO group were significantly higher than those in the control group. The immunohistochemistry results indicated that positive cell expression of HIF-1a, VEGF, and CD31 in the DFO group was also higher. Compared with the control group, the micro-CT parameters of BMD, BV/TV, TB. N, and TB. Th were significantly higher. The maximal pull-out force and the bone-to-implant contact value were also higher. Conclusions The local administration of DFO, which is used to activate the HIF-1a signaling pathway, can promote osteogenesis and osseointegration with a prosthesis in osteoporotic bone.
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Affiliation(s)
- Jiangfeng Liu
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Ziqiang Road 139, Shijiazhuang, 050051, China
| | - Huijun Kang
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Ziqiang Road 139, Shijiazhuang, 050051, China
| | - Jiangfeng Lu
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Ziqiang Road 139, Shijiazhuang, 050051, China
| | - Yike Dai
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Ziqiang Road 139, Shijiazhuang, 050051, China
| | - Fei Wang
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Ziqiang Road 139, Shijiazhuang, 050051, China.
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Zuo W, Yu L, Lin J, Yang Y, Fei Q. Properties improvement of titanium alloys scaffolds in bone tissue engineering: a literature review. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1259. [PMID: 34532396 PMCID: PMC8421948 DOI: 10.21037/atm-20-8175] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 05/28/2021] [Indexed: 12/19/2022]
Abstract
Owing to their excellent biocompatibility and corrosion-resistant properties, titanium (Ti) (and its alloy) are essential artificial substitute biomaterials for orthopedics. However, flaws, such as weak osteogenic induction ability and higher Young's modulus, have been observed during clinical application. As a result, short- and long-term postoperative follow-up has found that several complications have occurred. For decades, scientists have exerted efforts to compensate for these deficiencies. Different modification methods have been investigated, including changing alloy contents, surface structure transformation, three-dimensional (3D) structure transformation, coating, and surface functionalization technologies. The cell-surface interaction effect and imitation of the natural 3D bone structure are the two main mechanisms of these improved methods. In recent years, significant progress has been made in materials science research methods, including thorough research of titanium alloys of different compositions, precise surface pattern control technology, controllable 3D structure construction technology, improvement of coating technologies, and novel concepts of surface functionalization. These improvements facilitate the possibility for further research in the field of bone tissue engineering. Although the underlying mechanism is still not fully understood, these studies still have some implications for clinical practice. Therefore, for the direction of further research, it is beneficial to summarize these studies according to the basal method used. This literature review aimed to classify these technologies, thereby providing beginners with a preliminary understanding of the field.
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Affiliation(s)
- Weiyang Zuo
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lingjia Yu
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jisheng Lin
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yong Yang
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Qi Fei
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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17
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Zhang D, Deng T, Luo Z, Zhu A, Yang B, Zhong H, Li S, Yang X. [Surface modification of titanium implant with hBMP-2/hIGF-1 for promoting biocompatibility and osteogenesis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:1277-1282. [PMID: 34549722 DOI: 10.12122/j.issn.1673-4254.2021.08.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To prepare the human bone morphogenetic protein-2(hBMP-2)/human insulin-like growth factor-1(hIGF-1)coating titanium(Ti)and assess its performance as a dental implant material. METHODS hBMP-2 and hIGF-1 were coated to the smooth surface of a Ti plate, and its efficacy for promoting bone formation and bone integration was compared with a pristine Ti plate.The surface characteristics of the metal samples were evaluated using scanning electron microscope (SEM) and by contact angle measurement.MG63 cells were seeded on the surface of the Ti plates, and MTT assay and alizarin red staining was used to examine the cell proliferation and formation of calcified nodules, respectively.Alkaline phosphatase (ALP)secretion of the cells was examined with ELISA, and cellular expressions of osteocalcin and osteopontin were detected with Western blotting for assessing osteogenesis. RESULTS SEM examination showed that the surface of Ti with hBMP-2 and hIGF-1 coating presented with a radial pattern resembling snowflakes.The contact angles of non-coated Ti, hBMP-2-coated Ti, hIGF-1-coated, and hBMP-2/-hIGF-1-coated Ti samples were 83.2°, 54°, 56° and 54°, respectively.Compared with the non-coated Ti plate, the surface-modified Ti samples showed a significantly smaller contact angle (P=0.032, 0.029, and 0.028), indicating a good hydrophilicity of the samples.MTT assay showed that MG63 cells grew well on the surface of the coated Ti plates.The hBMP-2/IGF-1 coating significantly induced cellular secretion of ALP(P=0.021, 0.014)and obviously promoted osteogenesis of MG63 cells (P < 0.05).Western blotting results showed that hBMP-2/IGF-1 coating significantly enhanced the expressions of osteocalcin and osteopontin in the seeded cells (P < 0.05). CONCLUSION hBMP-2 and hIGF-1 coating of Ti material can promote osteogenesis of the cells seeded on its surface to improve the performance of such Ti material as dental implants.
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Affiliation(s)
- D Zhang
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - T Deng
- Department of Stomatology, Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Z Luo
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - A Zhu
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - B Yang
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - H Zhong
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - S Li
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - X Yang
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
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Wychowański P, Starzyńska A, Adamska P, Słupecka-Ziemilska M, Sobocki BK, Chmielewska A, Wysocki B, Alterio D, Marvaso G, Jereczek-Fossa BA, Kowalski J. Methods of Topical Administration of Drugs and Biological Active Substances for Dental Implants-A Narrative Review. Antibiotics (Basel) 2021; 10:919. [PMID: 34438969 PMCID: PMC8388631 DOI: 10.3390/antibiotics10080919] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/20/2021] [Accepted: 07/26/2021] [Indexed: 12/15/2022] Open
Abstract
Dental implants are, nowadays, established surgical devices for the restoration of lost teeth. Considered as an alternative for traditional prosthetic appliances, dental implants surpass them in reliability and patient feedback. Local drug delivery around the implants promotes osseointegration and reduces peri-implantitis. However, there are currently no methods of a multiple, precise topical administration of drugs to the implant area. Engineering coatings on the implants, drug application on carriers during implantation, or gingival pockets do not meet all requirements of dental surgeons. Therefore, there is a need to create porous implants and other medical devices that will allow a multiple drug delivery at a controlled dose and release profile without traumatic treatment. Due to the growing demand for the use of biologically active agents to support dental implant treatment at its various stages (implant placement, long-term use of dental superstructures, treatment of the peri-implant conditions) and due to the proven effectiveness of the topical application of pharmacological biologically active agents to the implant area, the authors would like to present a review and show the methods and devices that can be used by clinicians for local drug administration to facilitate dental implant treatment. Our review concludes that there is a need for research in the field of inventions such as new medical devices or implants with gradient solid-porous structures. These devices, in the future, will enable to perform repeatable, controllable, atraumatic, and repeatable injections of active factors that may affect the improvement of osteointegration and the longer survival of implants, as well as the treatment of peri-implantitis.
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Affiliation(s)
- Piotr Wychowański
- Department of Oral Surgery, Medical University of Warsaw, 6 St. Binieckiego Street, 02-097 Warsaw, Poland;
| | - Anna Starzyńska
- Department of Oral Surgery, Medical University of Gdańsk, 7 Dębinki Street, 80-211 Gdańsk, Poland; (P.A.); (B.K.S.)
| | - Paulina Adamska
- Department of Oral Surgery, Medical University of Gdańsk, 7 Dębinki Street, 80-211 Gdańsk, Poland; (P.A.); (B.K.S.)
| | - Monika Słupecka-Ziemilska
- Department of Human Epigenetics, Mossakowski Medical Research Center, Polish Academy of Sciences, 5 Pawińskiego Street, 02-106 Warsaw, Poland;
| | - Bartosz Kamil Sobocki
- Department of Oral Surgery, Medical University of Gdańsk, 7 Dębinki Street, 80-211 Gdańsk, Poland; (P.A.); (B.K.S.)
- International Research Agenda 3P—Medicine Laboratory, Medical University of Gdańsk, 3a Marii Skłodowskiej-Curie Street, 80-210 Gdańsk, Poland
| | - Agnieszka Chmielewska
- Faculty of Material Science and Engineering, Warsaw University of Technology, 141 Wołoska Street, 02-507 Warsaw, Poland;
- Department of Materials Science and Engineering, The Ohio State University, 140 W 19th Ave, Columbus, OH 43210, USA
| | - Bartłomiej Wysocki
- Center of Digital Science and Technology, Cardinal Stefan Wyszyński University in Warsaw, Woycickiego 1/3 Street, 01-938 Warsaw, Poland;
- Additive Manufacturing Research Center, College of Engineering, Youngstown State University, Youngstown, OH 44555, USA
| | - Daniela Alterio
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, 435 Ripamonti Street, 20141 Milan, Italy; (D.A.); (G.M.); (B.A.J.-F.)
| | - Giulia Marvaso
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, 435 Ripamonti Street, 20141 Milan, Italy; (D.A.); (G.M.); (B.A.J.-F.)
- Department of Oncology and Hemato-Oncology, University of Milan, 7 Festa del Perdono Street, 20112 Milan, Italy
| | - Barbara Alicja Jereczek-Fossa
- Division of Radiotherapy, IEO European Institute of Oncology, IRCCS, 435 Ripamonti Street, 20141 Milan, Italy; (D.A.); (G.M.); (B.A.J.-F.)
- Department of Oncology and Hemato-Oncology, University of Milan, 7 Festa del Perdono Street, 20112 Milan, Italy
| | - Jan Kowalski
- Department of Periodontology and Oral Medicine, Medical University of Warsaw, 6 St. Binieckiego Street, 02-097 Warsaw, Poland;
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Zhao Z, Ma S, Wu C, Li X, Ma X, Hu H, Wu J, Wang Y, Liu Z. Chimeric Peptides Quickly Modify the Surface of Personalized 3D Printing Titanium Implants to Promote Osseointegration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33981-33994. [PMID: 34260195 DOI: 10.1021/acsami.1c11207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Titanium (Ti) and titanium alloys have been widely used in the field of biomedicine. However, the unmatched biomechanics and poor bioactivities of conventional Ti implants usually lead to insufficient osseointegration. To tackle these challenges, it is critical to develop a novel Ti implant that meets the bioadaptive requirements for load-bearing critical bone defects. Notably, three-dimensional (3D)-printed Ti implants mimic the microstructure and mechanical properties of natural bones. Additionally, eco-friendly techniques based on inorganic-binding peptides have been applied to modify Ti surfaces. Herein, in our study, Ti surfaces were modified to reinforce osseointegration using chimeric peptides constructed by connecting W9, RP1P, and minTBP-1 directly or via (GP)4, respectively. PR1P is derived from the extracellular VEGF-binding domain of prominin-1, which increases the expression of VEGF and promotes the binding of VEGF to endothelial cells, thereby accelerating angiogenesis. W9 induces osteoblast differentiation in bone marrow mesenchymal stem cells and human mesenchymal stem cells to promote bone formation. Overall, chimeric peptides promote osseointegration by promoting angiogenesis and osteogenesis. Additionally, chimeric peptides with P3&4 were more effective than those with P1&2 in improving osseointegration, which might be ascribed to the capacity of P3&4 to provide a greater range for chimeric peptides to express their activity. This work successfully used chimeric peptides to modify 3D-Ti implant surfaces to improve osseointegration on the implant-bone surface.
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Affiliation(s)
- Zhezhe Zhao
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Shiqing Ma
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Chenxuan Wu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Xuewen Li
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Xinying Ma
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Han Hu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Jie Wu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Yonglan Wang
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Zihao Liu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, People's Republic of China
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20
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Rethi L, Lu L, Huynh VT, Manga YB, Rethi L, Mutalik C, Chen CH, Chuang EY. Bioactive Glass Fiber-Reinforced Plastic Composites Prompt a Crystallographic Lophelia Atoll-Like Skeletal Microarchitecture Actuating Periosteal Cambium. ACS APPLIED MATERIALS & INTERFACES 2021; 13:32226-32241. [PMID: 34210116 DOI: 10.1021/acsami.1c07950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The touchstone for bone replacing or anchoring trauma implants, besides resorption, includes functional ankylosis at a fixation point and replacement by viable functional neo-bone tissues. These parameters redefined the concept of "resorbability" as "bioresorbability." Interference screws are the most commonly used resorbable anchoring implants for anterior cruciate ligament (ACL) reconstruction (surgery). Over the years, the bioresorbable screw fixation armamentarium has amplified countless choices, but instability and postimplantation complications have raised concerns about its reliability and efficacy. Owing to this interest, in this work, bioactive glass fiber-reinforced plastic (BGFP) composites with (BGFPnb5) and without (BGFP5) niobicoxide composing multiplexed network modifiers are reported as bioresorbable bone-anchoring substitutes. These synergistically designed composites have a fabricated structure of continuous, unidirectional BG fibers reinforced in an epoxy resin matrix using "melt-drawing and microfabrication" technology. The BGFP microarchitecture is comprised of multiplexed oxide components that influence bioactive response in a distinctive lophelia atoll-like apatite formation. Furthermore, it assists in the proliferation, adherence, and migration of bone marrow-derived mesenchymal stem cells. It also exhibits superior physicochemical characteristics such as surface roughness, hydrophilic exposure, distinctive flexural strength, and bioresorption. Thus, it induces restorative bone osseointegration and osteoconduction and actuates periosteum function. In addition, the BGFP influences the reduction of DH5-α Escherichia coli in suspension culture, demonstrating potential antibacterial efficacy. In conclusion, the BGFP composite therapeutic efficacy demonstrates distinctive material characteristics aiding in bone regeneration and restoration that could serve as a pioneer in orthopedic regenerative medicine.
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Affiliation(s)
- Lekha Rethi
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Luke Lu
- Taiwan Fiber Optics, Inc., Taipei 10451, Taiwan
| | - Van Tin Huynh
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Interventional Cardiology, Thong Nhat Hospital, Ho Chi Minh City 700000, Vietnam
| | - Yankuba B Manga
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Lekshmi Rethi
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chih-Hwa Chen
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Orthopedics, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Research Center of Biomedical Device, Taipei Medical University, Taipei 11031, Taiwan
| | - Er-Yuan Chuang
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Cell Physiology and Molecular Image Research Center, Taipei Medical University-Wan Fang Hospital, Taipei 116, Taiwan
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21
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AbouAitah K, Bil M, Pietrzykowska E, Szałaj U, Fudala D, Woźniak B, Nasiłowska J, Swiderska-Sroda A, Lojkowski M, Sokołowska B, Swieszkowski W, Lojkowski W. Drug-Releasing Antibacterial Coating Made from Nano-Hydroxyapatite Using the Sonocoating Method. NANOMATERIALS 2021; 11:nano11071690. [PMID: 34203218 PMCID: PMC8307745 DOI: 10.3390/nano11071690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/09/2021] [Accepted: 06/14/2021] [Indexed: 12/11/2022]
Abstract
Medical implant use is associated with a risk of infection caused by bacteria on their surface. Implants with a surface that has both bone growth-promoting properties and antibacterial properties are of interest in orthopedics. In the current study, we fabricated a bioactive coating of hydroxyapatite nanoparticles on polyether ether ketone (PEEK) using the sonocoating method. The sonocoating method creates a layer by immersing the object in a suspension of nanoparticles in water and applying a high-power ultrasound. We show that the simple layer fabrication method results in a well-adhering layer with a thickness of 219 nm to 764 nm. Dropping cefuroxime sodium salt (Cef) antibiotic on the coated substrate creates a layer with a drug release effect and antibacterial activity against Staphylococcus aureus. We achieved a concentration of up to 1 mg of drug per cm2 of the coated substrate. In drug release tests, an initial burst was observed within 24 h, accompanied by a linear stable release effect. The drug-loaded implants exhibited sufficient activity against S. aureus for 24 and 168 h. Thus, the simple method we present here produces a biocompatible coating that can be soaked with antibiotics for antibacterial properties and can be used for a range of medical implants.
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Affiliation(s)
- Khaled AbouAitah
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Division, National Research Centre (NRC), Dokki, Giza 12622, Egypt
- Correspondence: (K.A.); (W.L.); Tel.: +48-22-6325010 (W.L.); Fax: +48-22-632-4218 (W.L.)
| | - Monika Bil
- Centre for Advanced Materials and Technologies, Warsaw University of Technology, Poleczki 19, 02822 Warsaw, Poland;
| | - Elzbieta Pietrzykowska
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Street, 02507 Warsaw, Poland; (M.L.); (W.S.)
| | - Urszula Szałaj
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Street, 02507 Warsaw, Poland; (M.L.); (W.S.)
| | - Damian Fudala
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
| | - Bartosz Woźniak
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
| | - Justyna Nasiłowska
- Department of Microbiology, Prof. Wacław Dąbrowski Institute of Agriculture and Food Biotechnology–State Research Institute, 36 Rakowiecka Street, 02532 Warsaw, Poland; (J.N.); (B.S.)
- High Pressure Food and Soft Matter Processing Group, Institute of High-Pressure Physics, Polish Academy of Sciences, 29/37 Sokołowska Street, 01142 Warsaw, Poland
| | - Anna Swiderska-Sroda
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
| | - Maciej Lojkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Street, 02507 Warsaw, Poland; (M.L.); (W.S.)
| | - Barbara Sokołowska
- Department of Microbiology, Prof. Wacław Dąbrowski Institute of Agriculture and Food Biotechnology–State Research Institute, 36 Rakowiecka Street, 02532 Warsaw, Poland; (J.N.); (B.S.)
- High Pressure Food and Soft Matter Processing Group, Institute of High-Pressure Physics, Polish Academy of Sciences, 29/37 Sokołowska Street, 01142 Warsaw, Poland
| | - Wojciech Swieszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Street, 02507 Warsaw, Poland; (M.L.); (W.S.)
| | - Witold Lojkowski
- Laboratory of Nanostructures and Nanomedicine, Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska Street, 01142 Warsaw, Poland; (E.P.); (U.S.); (D.F.); (B.W.); (A.S.-S.)
- Correspondence: (K.A.); (W.L.); Tel.: +48-22-6325010 (W.L.); Fax: +48-22-632-4218 (W.L.)
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22
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Bouyer M, Garot C, Machillot P, Vollaire J, Fitzpatrick V, Morand S, Boutonnat J, Josserand V, Bettega G, Picart C. 3D-printed scaffold combined to 2D osteoinductive coatings to repair a critical-size mandibular bone defect. Mater Today Bio 2021; 11:100113. [PMID: 34124641 PMCID: PMC8173095 DOI: 10.1016/j.mtbio.2021.100113] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/20/2021] [Accepted: 04/24/2021] [Indexed: 02/03/2023] Open
Abstract
The reconstruction of large bone defects (12 cm3) remains a challenge for clinicians. We developed a new critical-size mandibular bone defect model on a minipig, close to human clinical issues. We analyzed the bone reconstruction obtained by a 3D-printed scaffold made of clinical-grade polylactic acid (PLA), coated with a polyelectrolyte film delivering an osteogenic bioactive molecule (BMP-2). We compared the results (computed tomography scans, microcomputed tomography scans, histology) to the gold standard solution, bone autograft. We demonstrated that the dose of BMP-2 delivered from the scaffold significantly influenced the amount of regenerated bone and the repair kinetics, with a clear BMP-2 dose-dependence. Bone was homogeneously formed inside the scaffold without ectopic bone formation. The bone repair was as good as for the bone autograft. The BMP-2 doses applied in our study were reduced 20- to 75-fold compared to the commercial collagen sponges used in the current clinical applications, without any adverse effects. Three-dimensional printed PLA scaffolds loaded with reduced doses of BMP-2 may be a safe and simple solution for large bone defects faced in the clinic.
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Affiliation(s)
- M. Bouyer
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- Clinique Générale d’Annecy, 4 Chemin de la Tour la Reine, 74000, Annecy, France
| | - C. Garot
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
| | - P. Machillot
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
| | - J. Vollaire
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- INSERM U1209, Institut Albert Bonniot, F-38000, Grenoble, France
| | - V. Fitzpatrick
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
| | - S. Morand
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
- Service de Chirurgie Maxillo-faciale, Centre Hospitalier Annecy Genevois, 1 Avenue de l'hôpital, 74370, Epagny Metz-Tessy, France
| | - J. Boutonnat
- Unité Médico-technique d’Histologie Cytologie Expérimentale, Faculté de Médecine, Université Joseph Fourier, 38700, La Tronche, France
- Département d’Anatomie et Cytologie Pathologique, Institut de Biologie et de Pathologie, Centre Hospitalier Universitaire de Grenoble, France
| | - V. Josserand
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- INSERM U1209, Institut Albert Bonniot, F-38000, Grenoble, France
| | - G. Bettega
- Université Grenoble Alpes, Institut Albert Bonniot, F-38000, Grenoble, France
- INSERM U1209, Institut Albert Bonniot, F-38000, Grenoble, France
- Service de Chirurgie Maxillo-faciale, Centre Hospitalier Annecy Genevois, 1 Avenue de l'hôpital, 74370, Epagny Metz-Tessy, France
- Corresponding author.
| | - C. Picart
- CEA, CNRS, Université de Grenoble Alpes, ERL5000 BRM, IRIG Institute, 17 Rue des Martyrs, F-38054, Grenoble, France
- CNRS and Grenoble Institute of Engineering, UMR5628, LMGP, 3 Parvis Louis Néel, F-38016, Grenoble, France
- Institut Universitaire de France, 1 Rue Descartes, 75231, Paris Cedex 05, France
- Corresponding author.
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Nobles KP, Janorkar AV, Williamson RS. Surface modifications to enhance osseointegration-Resulting material properties and biological responses. J Biomed Mater Res B Appl Biomater 2021; 109:1909-1923. [PMID: 33871951 DOI: 10.1002/jbm.b.34835] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 02/26/2021] [Accepted: 03/14/2021] [Indexed: 12/18/2022]
Abstract
As life expectancy and the age of the general population increases so does the need for improved implants. A major contributor to the failure of implants is poor osseointegration, which is typically described as the direct connection between bone and implant. This leads to unnecessary complications and an increased burden on the patient population. Modification of the implant surfaces through novel techniques, such as varying topography and/or applying coatings, has become a popular method to enhance the osseointegration capability of implants. Recent research has shown that particular surface features influence how bone cells interact with a material; however, it is unknown which exact features achieve optimal bone integration. In this review, current methods of modifying surfaces will be highlighted, and the resulting surface characteristics and biological responses are discussed. Review of the current strategies of surface modifications found that many coating types are more advantageous when used in combination; however, finding a surface modification that utilizes the mutual beneficial effects of important surface characteristics while still maintaining commercial viability is where future challenges exist.
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Affiliation(s)
- Kadie P Nobles
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Amol V Janorkar
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Randall S Williamson
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, Mississippi, USA
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24
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Gu X, Sun X, Sun Y, Wang J, Liu Y, Yu K, Wang Y, Zhou Y. Bioinspired Modifications of PEEK Implants for Bone Tissue Engineering. Front Bioeng Biotechnol 2021; 8:631616. [PMID: 33511108 PMCID: PMC7835420 DOI: 10.3389/fbioe.2020.631616] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 12/10/2020] [Indexed: 12/15/2022] Open
Abstract
In recent years, polyetheretherketone (PEEK) has been increasingly employed as an implant material in clinical applications. Although PEEK is biocompatible, chemically stable, and radiolucent and has an elastic modulus similar to that of natural bone, it suffers from poor integration with surrounding bone tissue after implantation. To improve the bioactivity of PEEK, numerous strategies for functionalizing the PEEK surface and changing the PEEK structure have been proposed. Inspired by the components, structure, and function of bone tissue, this review discusses strategies to enhance the biocompatibility of PEEK implants and provides direction for fabricating multifunctional implants in the future.
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Affiliation(s)
| | | | | | | | | | | | | | - Yanmin Zhou
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China
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25
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Chen J, Li W, Li Q, Wang Y, Zhao B, Han X, Deng J, Liu Y. The composite sandwich structure of dNCPs polyelectrolyte multilayers induced the osteogenic differentiation of PDLSCs in vitro. J Appl Biomater Funct Mater 2020; 18:2280800020942719. [PMID: 33176539 DOI: 10.1177/2280800020942719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This study reported about the fabrication of dentin non-collagenous proteins (dNCPs) polyelectrolyte multilayers and evaluated its osteogenic potential. The composite sandwich structure of dNCPs polyelectrolyte multilayers was generated on the surface of polycaprolactone electrospinning membranes by the Layer-by-Layer self-assembly technique. The dNCPs-coated membranes comprised the experimental group and the non-coated membranes acted as the control. Nanofiber morphologies of both membranes were observed under scanning electron microscope. The release of dNCPs was evaluated by ELISA kit. Periodontal ligament stem cells (PDLSCs) were seeded on both membranes. The morphology changes and proliferation of cells were tested. The expressions of osteogenic-related genes and proteins were evaluated by RT-PCR, alkaline phosphatase (ALP) activity assay, and immunofluorescence staining. dNCPs-coated membranes displayed significantly different fiber morphology than the non-coated membranes. A stable release of dentin phosphoprotein was maintained from day 4 to day 15 in the experimental group. Cells on dNCPs-coated membranes were found to have cuboidal or polygonal shapes. The proliferative rate of cells was significantly lower in the experimental group from day 4 to day 9 (p<0.05). However, cells on the dNCPs-coated membranes demonstrated a significantly higher ALP content and expression levels of osteogenic gene and proteins than the controls (p<0.05). These results indicated that dNCPs polyelectrolyte multilayers could induce the osteogenic differentiation of PDLSCs in vitro.
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Affiliation(s)
- Jing Chen
- Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China.,Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
| | - Wenxing Li
- Chengdu Zhuoyue dental clinic, Chengdu, P.R. China
| | - Qiang Li
- Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China.,Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
| | - Yuhui Wang
- Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China.,Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
| | - Bingjiao Zhao
- Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China.,Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
| | - Xinxin Han
- Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
| | - Jiajia Deng
- Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China.,Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
| | - Yuehua Liu
- Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China.,Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, P.R. China
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26
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Abstract
Dental implants are widely used in the field of oral restoration, but there are still problems leading to implant failures in clinical application, such as failed osseointegration, marginal bone resorption, and peri-implantitis, which restrict the success rate of dental implants and patient satisfaction. Poor osseointegration and bacterial infection are the most essential reasons resulting in implant failure. To improve the clinical outcomes of implants, many scholars devoted to modifying the surface of implants, especially to preparing different physical and chemical modifications to improve the osseointegration between alveolar bone and implant surface. Besides, the bioactive-coatings to promote the adhesion and colonization of ossteointegration-related proteins and cells also aim to improve the osseointegration. Meanwhile, improving the anti-bacterial performance of the implant surface can obstruct the adhesion and activity of bacteria, avoiding the occurrence of inflammation related to implants. Therefore, this review comprehensively investigates and summarizes the modifying or coating methods of implant surfaces, and analyzes the ossteointegration ability and anti-bacterial characteristics of emerging functional coatings in published references.
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27
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Xia YJ, Wang W, Xia H, Huang XH, Deng FP, Ying QS, Yu X, Li LH, Wang JH, Zhang Y. Preparation of Coralline Hydroxyapatite Implant with Recombinant Human Bone Morphogenetic Protein-2-Loaded Chitosan Nanospheres and Its Osteogenic Efficacy. Orthop Surg 2020; 12:1947-1953. [PMID: 33080108 PMCID: PMC7767670 DOI: 10.1111/os.12752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 06/01/2020] [Accepted: 06/18/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE Spinal fusion is one of the most common surgical interventions for spine reconstruction. Despite the efforts to promote osteogenesis after spinal fusion, osteogenesis after spinal fusion remains a clinical challenge and new methods are still needed. The bone morphogenetic protein-2 (BMP-2) is a widely reported factor that can facilitate the osteogenesis in spinal fusion. In previous research, we found that the delivery of chitosan nanospheres could promote the effects of BMP-2 on osteogenic activity. The coralline hydroxyapatite (CHA) is one of the most frequently used implants in bone fusion. However, up to now no study has focused on the osteogenic efficacy of the CHA composite with recombinant human BMP-2 (rhBMP-2)-loaded chitosan nanospheres. This study aimed to investigate the effects of the CHA implant with rhBMP-2-loaded chitosan nanospheres on osteogenesis in spinal fusion. METHODS The rhBMP-2-loaded microspheres and CHA composite (rhBMP-2 microspheres/CHA) were prepared and were used for implantation of the rats. All SD rats were divided into four groups: the rhBMP-2 microspheres/CHA composite group (containing 0.5 mg rhBMP-2), the rhBMP-2-loaded CHA (rhBMP-2/CHA) composite group (containing 0.5 mg rhBMP-2), the blank CHA group, and the negative control group. The microsphere morphology was scanned and analyzed using a scanning electron microscope. Micro-computed tomography examination and three-dimensional reconstruction were performed 4 weeks after the surgery. Hematoxylin and eosin staining was conducted for histological analysis. Both alkaline phosphatase (ALP) and calcium content were measured. RESULTS The rhBMP-2-loaded CHA (rhBMP-2/CHA) composite was successfully prepared. Spherical regularity and a smooth and unwrinkled surface of the spheres were observed in all chitosan (CS)/rhBMP-2 microspheres. No side effects, infections, or abnormal behaviors were found in the animals. After 4 weeks of surgery, obvious new bone formation and bone fusion could be observed around the implant in both the rhBMP-2 microspheres/CHA composite group and the rhBMP-2/CHA composite group. No ectopic osteogenesis was found in the vertebral canal or other muscle tissues. After 4 weeks of implantation, in both the rhBMP-2 microspheres/CHA composite group and the rhBMP-2/CHA composite group, osteoid tissues could be found, and bone cells, bone marrow, and trabecular bone turned into mature sclerotin, obvious bone tissue formation could be also seen. Both ALP activity and calcium content in the rhBMP-2 microspheres/CHA composite group (6.52 ± 0.50 kat/g and 17.54 ± 2.49 μg/mg) were significantly higher than in all other groups. CONCLUSION The composite with rhBMP-2-loaded CS nanospheres could enhance osteogenic efficacy and increase the ALP activity and calcium content. These results might provide a novel method for osteogenesis in spinal fusion and offer new insight into the role of BMP-2 in osteogenesis.
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Affiliation(s)
- Yuan-Jun Xia
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Wei Wang
- Department of Orthopaedics, The First Affiliated Hospital of Jiangxi Medical College, Shangrao, China
| | - Hong Xia
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Xian-Hua Huang
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Feng-Piao Deng
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Qing-Shui Ying
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Xiang Yu
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Li-Hua Li
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Jian-Hua Wang
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Ying Zhang
- Department of Trauma Orthopaedics, General Hospital of Southern Theater Command, PLA, Guangzhou, China
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28
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Mohamad HS, Neuber S, Helm CA. Surface Forces of Asymmetrically Grown Polyelectrolyte Multilayers: Searching for the Charges. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15491-15499. [PMID: 31486657 DOI: 10.1021/acs.langmuir.9b01787] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Surface forces are used to investigate the polymer conformation and the surface charge of polyelectrolyte multilayers. Films are prepared from strong polyelectrolytes with low and high linear charge density at 0.1 M NaCl, namely poly(diallyldimethylammonium) (PDADMA) and poly(styrenesulfonate) (PSS). The multilayer has two growth regimes: in the beginning, the film can contain as many positive as negative monomers. After about 15 deposited layer pairs, a linear growth regime characterized by an excess of cationic PDADMA monomers occurs. Independent of the film composition, at preparation conditions, the film surface is flat, uncharged and partially hydrophobic. Surface force measurements at decreased ionic strength provide insight. For PSS-terminated films electrostatic forces are found. At the beginning of multilayer formation, the surface charge density is negative. However, in the linear growth regime it is positive and low (one charge per 200-400 nm2). This reversal of surface charge density of PSS-terminated films is attributed to excess PDADMA-monomers within the film. PDADMA terminated films show steric forces, chains protrude into the solution and form a pseudobrush, which scales as a polyelectrolyte brush with a low grafting density (1900 nm2 per chain). We suggest a model of polyelectrolyte multilayer formation: PDADMA with its low linear charge density adsorbs with weakly bound chains. Monovalent anions within the film compensate PDADMA monomer charges. When PSS adsorbs onto a PDADMA-terminated multilayer, PSS monomers replace monovalent anions. While electrostatic bonds are formed and dissolved within the polyelectrolyte multilayer, the surface charge density remains zero.
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Affiliation(s)
- Heba S Mohamad
- Institute of Physics , University of Greifswald , Felix-Hausdorff-Straße 6 , D-17489 Greifswald , Germany
| | - Sven Neuber
- Institute of Physics , University of Greifswald , Felix-Hausdorff-Straße 6 , D-17489 Greifswald , Germany
| | - Christiane A Helm
- Institute of Physics , University of Greifswald , Felix-Hausdorff-Straße 6 , D-17489 Greifswald , Germany
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29
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Buck E, Li H, Cerruti M. Surface Modification Strategies to Improve the Osseointegration of Poly(etheretherketone) and Its Composites. Macromol Biosci 2019; 20:e1900271. [DOI: 10.1002/mabi.201900271] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/18/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Emily Buck
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| | - Hao Li
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| | - Marta Cerruti
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
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30
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de Avila ED, van Oirschot BA, van den Beucken JJJP. Biomaterial-based possibilities for managing peri-implantitis. J Periodontal Res 2019; 55:165-173. [PMID: 31638267 PMCID: PMC7154698 DOI: 10.1111/jre.12707] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 08/22/2019] [Accepted: 09/18/2019] [Indexed: 12/13/2022]
Abstract
Peri‐implantitis is an inflammatory disease of hard and soft tissues around osseointegrated implants, followed by a progressive damage of alveolar bone. Oral microorganisms can adhere to all types of surfaces by the production of multiple adhesive factors. Inherent properties of materials will influence not only the number of microorganisms, but also their profile and adhesion force onto the material surface. In this perspective, strategies to reduce the adhesion of pathogenic microorganisms on dental implants and their components should be investigated in modern rehabilitation concepts in implant dentistry. To date, several metallic nanoparticle films have been developed to reduce the growth of pathogenic bacteria. However, the main drawback in these approaches is the potential toxicity and accumulative effect of the metals over time. In view of biological issues and in attempt to prevent and/or treat peri‐implantitis, biomaterials as carriers of antimicrobial substances have attracted special attention for application as coatings on dental implant devices. This review will focus on biomaterial‐based possibilities to prevent and/or treat peri‐implantitis by describing concepts and dental implant components suitable for engagement in preventing and treating this disease. Additionally, we raise important criteria referring to the geometric parameters of dental implants and their components, which can directly affect peri‐implant tissue conditions. Finally, we overview currently available biomaterial systems that can be used in the field of oral implantology.
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Affiliation(s)
- Erica D de Avila
- Regenerative Biomaterials, Radboudumc, Nijmegen, The Netherlands.,Department of Dental Materials and Prosthodontics, School of Dentistry at Araraquara, Sao Paulo State University-UNESP, Araraquara, São Paulo, Brazil
| | - Bart A van Oirschot
- Regenerative Biomaterials, Radboudumc, Nijmegen, The Netherlands.,Department of Implantology & Periodontology, Radboudumc, Nijmegen, The Netherlands
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Lu RJ, Wang X, He HX, E LL, Li Y, Zhang GL, Li CJ, Ning CY, Liu HC. Tantalum-incorporated hydroxyapatite coating on titanium implants: its mechanical and in vitro osteogenic properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:111. [PMID: 31583537 DOI: 10.1007/s10856-019-6308-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 08/30/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE The fabrication of bioactive coatings on metallic implants to enhance osseointegration has become a topic of general interest in orthopedics and dentistry. Hydroxyapatite (HA) coating has been shown to induce bone formation and promote bone-implant integration. Unfortunately, poor mechanical performance has hindered this from becoming a favorable coating material. The majority of present studies have focused in incorporating different elements into HA coatings to improve mechanical properties. In recent years, tantalum (Ta) has received increasing attention due to its excellent biocompatibility and corrosion resistance. The aim of on the present study was to investigate the fabrication and biological performance of Ta-incorporated HA coatings. METHODS Ta-incorporated HA coatings were fabricated using the plasma spray technique on a titanium substrate, and the surface characteristics and mechanical properties were examined. In addition, the effects of Ta-incorporated HA coatings on the biological behavior of mesenchymal stem cells (BMSCs) were investigated. RESULTS Ta-incorporated HA coatings with microporous structure had higher roughness and wettability. In addition, the bonding strength of Ta/HA coatings with the substrate was substantially superior to HA coatings. Furthermore, Ta-incorporated HA coatings not only facilitated initial cell adhesion and faster proliferation, but also promoted the osteogenic differentiation of BMSCs. CONCLUSION These results indicate that the incorporation of Ta could improve mechanical performance and increase the osteogenic activity of HA coatings. The Ta-incorporated HA coating fabricated by plasma spraying is expected to be a promising bio-coating material for metallic implants.
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Affiliation(s)
- Rong-Jian Lu
- Department of Stomatology, the Fifth Medical Center, Chinese PLA General Hospital, 100071, Beijing, China
- Department of Stomatology, the First Medical Center, Chinese PLA General Hospital, 100853, Beijing, China
| | - Xing Wang
- Shanxi Medical University School and Hospital of Stomatology, 030001, Taiyuan, China
| | - Hui-Xia He
- Department of Stomatology, the First Medical Center, Chinese PLA General Hospital, 100853, Beijing, China
| | - Ling-Ling E
- Department of Stomatology, the First Medical Center, Chinese PLA General Hospital, 100853, Beijing, China
| | - Ying Li
- School of Materials Science and Technology, South China University of Technology, 510641, Guangzhou, China
| | - Gui-Lan Zhang
- Department of Stomatology, the First Medical Center, Chinese PLA General Hospital, 100853, Beijing, China
| | - Chuan-Jie Li
- Department of Stomatology, the First Medical Center, Chinese PLA General Hospital, 100853, Beijing, China
| | - Cheng-Yun Ning
- School of Materials Science and Technology, South China University of Technology, 510641, Guangzhou, China
| | - Hong-Chen Liu
- Department of Stomatology, the First Medical Center, Chinese PLA General Hospital, 100853, Beijing, China.
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Macrophage polarization following three-dimensional porous PEEK. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109948. [PMID: 31499957 DOI: 10.1016/j.msec.2019.109948] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/30/2019] [Accepted: 07/04/2019] [Indexed: 01/18/2023]
Abstract
Macrophages play an important role in foreign body reaction (FBR), and exhibit a detrimental or beneficial function in tissue repair while polarized into different phenotypes. The objective of this work is to evaluate the effect of three-dimensional (3D) porous polyetheretherketone (PEEK) on macrophage polarization through sulfonating PEEK and establishing a mouse air pouch model. The in vivo results show that the sulfonated PEEK induced higher levels of anti-inflammatory cytokine together with lower levels of pro-inflammatory cytokine. In addition, it was found that a relatively mild infiltration of inflammatory cells was caused and there were more M2 macrophages and less M1 ones when compared with PEEK. It indicates that 3D porous PEEK induces a shift to M2 macrophages and has large potential in regenerative medicine application.
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Abstract
Many research methods exist to elucidate the role of BMP-2 during bone regeneration. This chapter briefly reviews important animal models used in these studies and provides details on the rat femur defect model. This animal model is frequently utilized to measure the efficacy of osteogenic factors like BMP-2. Detailed information about delivery methods, dose range, and dose duration used in BMP-2-related studies are provided.
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Kim SY, Kim YK, Kim KS, Lee KB, Lee MH. Enhancement of bone formation on LBL-coated Mg alloy depending on the different concentration of BMP-2. Colloids Surf B Biointerfaces 2019; 173:437-446. [DOI: 10.1016/j.colsurfb.2018.09.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/14/2018] [Accepted: 09/24/2018] [Indexed: 02/02/2023]
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Barik A, Chakravorty N. Targeted Drug Delivery from Titanium Implants: A Review of Challenges and Approaches. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1251:1-17. [PMID: 31768968 DOI: 10.1007/5584_2019_447] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Titanium implants are considered the gold standard of treatment for dental and orthopedic applications. Biocompatibility, low elasticity, and corrosion resistance are some of the key properties of these metallic implants. Nonetheless, a long-term clinical failure of implants may occur due to inadequate osseointegration. Poor osseointegration induces mobility, inflammation, increased bone resorption, and osteolysis; hence, it may result in painful revision surgeries. Topographical modifications, improvement in hydrophilicity, and the development of controlled-release drug-loading systems have shown to improve cellular adhesion, proliferation, and differentiation. Surface modifications, along with drug coating, undoubtedly demonstrate better osseointegration, especially in challenged degenerative conditions, such as osteoporosis, osteoarthritis, and osteogenesis imperfecta. Anabolic bone-acting drugs, such as parathyroid hormone peptides, simvastatin, prostaglandin-EP4-receptor antagonist, vitamin D, strontium ranelate, and anti-catabolic bone-acting drugs, such as calcitonin, bisphosphonates, and selective estrogen receptor modulators, expedite the process of osseointegration. In addition, various proteins, peptides, and growth factors may accessorize the idea of localized therapy. Loading these substances on modified titanium surfaces is achieved commonly by mechanisms such as direct coating, adsorption, and incorporating in biodegradable polymers. The primary approach toward the optimum drug loading is a critical trade-off between factors preventing release of a drug immediately and those allowing slow and sustained release. Recent advances broaden the understanding of the efficacy of adsorption, hydrogel coating, and electrospinning layer-by-layer coating facilitated by differential charge on metallic surface. This review discusses the existing approaches and challenges for the development of stable and sustained drug delivery systems on titanium implants, which would promote faster and superior osseointegration.
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Affiliation(s)
- Anwesha Barik
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, Paschim Medinipur, West Bengal, India
| | - Nishant Chakravorty
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, Paschim Medinipur, West Bengal, India.
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Brum RS, Monich PR, Fredel MC, Contri G, Ramoa SDAS, Magini RS, Benfatti CAM. Polymer coatings based on sulfonated-poly-ether-ether-ketone films for implant dentistry applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:132. [PMID: 30094472 DOI: 10.1007/s10856-018-6139-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Poly-ether-ether-ketone (PEEK) is one of the most important biocompatible polymers and its sulfonation has been studied for biomedical applications. The aim of the present study is to produce, to characterize and to assess bioactivity of PEEK coatings with sulfonated PEEK (SPEEK) films. Biomedical grade PEEK (Invibio®, Batch: D0602, grade: NI1) was functionalized using sulfuric acid 98%. SPEEK was dissolved into DMSO or into DMF, both at 10% mass/volume. PEEK bars (N = 18) and cylinders (N = 27) were manufactured by compression molding and heating. SPEEK/DMSO and SPEEK/DMF were drop casted at PEEK bars and dip coated at PEEK cylinders (PEEK + SPEEK/DMSO and PEEK + SPEEK/DMF). Characterization was performed through Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and contact angle measurements. Bioactivity was assessed by immersion of samples at SBF for 1, 7 and 21 days, followed by SEM, energy-dispersive analysis (EDX) and FTIR analysis. Statistical analysis was carried out by one-way analysis of variance (ANOVA) (p = 0.05). Characteristic bands of PEEK and SPEEK, were identified through FTIR spectrum analysis, while semicrystallinity was confirmed by XRD. PEEK + SPEEK/DMF showed more evident physicochemical modifications. PEEK + SPEEK/DMSO provided a more regular and hydrophobic surface, observed through SEM and contact angle measurements. SEM/EDX showed that precipitates of calcium were formed at PEEK + SPEEK/DMSO and PEEK + SPEEK/DMF at all experimental times, but materials were not considered bioactive. Interesting surface properties were achieved with SPEEK coatings but the production of SPEEK films at PEEK surface has to be further improved and biologically tested. Schematic diagram showing the methodology applied in this study to prepare PEEK and SPEEK samples, as well as the promising application of the material.
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Affiliation(s)
- R S Brum
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil.
| | - P R Monich
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - M C Fredel
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - G Contri
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - S D A S Ramoa
- Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - R S Magini
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
| | - C A M Benfatti
- Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
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Chan YH, Lew WZ, Lu E, Loretz T, Lu L, Lin CT, Feng SW. An evaluation of the biocompatibility and osseointegration of novel glass fiber reinforced composite implants: In vitro and in vivo studies. Dent Mater 2018; 34:470-485. [DOI: 10.1016/j.dental.2017.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/16/2017] [Accepted: 12/08/2017] [Indexed: 01/21/2023]
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Raftari M, Zhang ZJ, Carter SR, Leggett GJ, Geoghegan M. Salt Dependence of the Tribological Properties of a Surface-Grafted Weak Polycation in Aqueous Solution. TRIBOLOGY LETTERS 2017; 66:11. [PMID: 31983863 PMCID: PMC6951817 DOI: 10.1007/s11249-017-0963-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 11/23/2017] [Indexed: 06/10/2023]
Abstract
The nanoscopic adhesive and frictional behaviour of end-grafted poly[2-(dimethyl amino)ethyl methacrylate] (PDMAEMA) films (brushes) in contact with gold- or PDMAEMA-coated atomic force microscope tips in potassium halide solutions with different concentrations up to 300 mM is a strong function of salt concentration. The conformation of the polymers in the brush layer is sensitive to salt concentration, which leads to large changes in adhesive forces and the contact mechanics at the tip-sample contact, with swollen brushes (which occur at low salt concentrations) yielding large areas of contact and friction-load plots that fit JKR behaviour, while collapsed brushes (which occur at high salt concentrations) yield sliding dominated by ploughing, with conformations in between fitting DMT mechanics. The relative effect of the different anions follows the Hofmeister series, with I- collapsing the brushes more than Br- and Cl- for the same salt concentration.
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Affiliation(s)
- Maryam Raftari
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - Zhenyu J. Zhang
- Department of Chemistry, University of Sheffield, Sheffield, S3 7HF UK
- Present Address: School of Chemical Engineering, University of Birmingham, Birmingham, B15 2TT UK
| | - Steven R. Carter
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - Graham J. Leggett
- Department of Chemistry, University of Sheffield, Sheffield, S3 7HF UK
| | - Mark Geoghegan
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
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Grau M, Matena J, Teske M, Petersen S, Aliuos P, Roland L, Grabow N, Murua Escobar H, Gellrich NC, Haferkamp H, Nolte I. In Vitro Evaluation of PCL and P(3HB) as Coating Materials for Selective Laser Melted Porous Titanium Implants. MATERIALS 2017; 10:ma10121344. [PMID: 29168794 PMCID: PMC5744279 DOI: 10.3390/ma10121344] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/01/2017] [Accepted: 11/20/2017] [Indexed: 11/16/2022]
Abstract
Titanium is widely used as a bone implant material due to its biocompatibility and high resilience. Since its Young’s modulus differs from bone tissue, the resulting “stress shielding” could lead to scaffold loosening. However, by using a scaffold-shaped geometry, the Young’s modulus can be adjusted. Also, a porous geometry enables vascularisation and bone ingrowth inside the implant itself. Additionally, growth factors can improve these effects. In order to create a deposit and release system for these factors, the titanium scaffolds could be coated with degradable polymers. Therefore, in the present study, synthetic poly-ε-caprolactone (PCL) and the biopolymer poly(3-hydroxybutyrate) (P(3HB)) were tested for coating efficiency, cell adhesion, and biocompatibility to find a suitable coating material. The underlying scaffold was created from titanium by Selective Laser Melting (SLM) and coated with PCL or P(3HB) via dip coating. To test the biocompatibility, Live Cell Imaging (LCI) as well as vitality and proliferation assays were performed. In addition, cell adhesion forces were detected via Single Cell Force Spectroscopy, while the coating efficiency was observed using environmental scanning electron microscopy (ESEM) and energy-dispersive X-ray (EDX) analyses. Regarding the coating efficiency, PCL showed higher values in comparison to P(3HB). Vitality assays revealed decent vitality values for both polymers, while values for PCL were significantly lower than those for blank titanium. No significant differences could be observed between PCL and P(3HB) in proliferation and cell adhesion studies. Although LCI observations revealed decreasing values in cell number and populated area over time on both polymer-coated scaffolds, these outcomes could be explained by the possibility of coating diluent residues accumulating in the culture medium. Overall, both polymers fulfill the requirements regarding biocompatibility. Nonetheless, since only PCL coating ensured the maintenance of the porous implant structure, it is preferable to be used as a coating material for creating a deposit and release system for growth factors.
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Affiliation(s)
- Michael Grau
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
- Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany.
| | - Julia Matena
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
- Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany.
| | - Michael Teske
- Institute for Biomedical Engineering, Rostock University Medical Center, D-18119 Rostock, Germany.
| | - Svea Petersen
- Faculty of Engineering and Computer Science, University of Applied Sciences, D-49076 Osnabrueck, Germany.
| | - Pooyan Aliuos
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, D-30625 Hannover, Germany.
| | - Laura Roland
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
- Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany.
| | - Niels Grabow
- Institute for Biomedical Engineering, Rostock University Medical Center, D-18119 Rostock, Germany.
| | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
- Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany.
| | - Nils-Claudius Gellrich
- Clinic for Cranio-Maxillo-Facial Surgery, Hannover Medical School, D-30625 Hannover, Germany.
| | - Heinz Haferkamp
- Institut fuer Werkstoffkunde, Leibniz Universitaet Hannover, D-30823 Garbsen, Germany.
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
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Liu X, Han F, Zhao P, Lin C, Wen X, Ye X. Layer-by-layer self-assembled multilayers on PEEK implants improve osseointegration in an osteoporosis rabbit model. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1423-1433. [PMID: 28131883 DOI: 10.1016/j.nano.2017.01.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 10/28/2016] [Accepted: 01/04/2017] [Indexed: 10/20/2022]
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Civantos A, Martínez-Campos E, Ramos V, Elvira C, Gallardo A, Abarrategi A. Titanium Coatings and Surface Modifications: Toward Clinically Useful Bioactive Implants. ACS Biomater Sci Eng 2017; 3:1245-1261. [DOI: 10.1021/acsbiomaterials.6b00604] [Citation(s) in RCA: 182] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ana Civantos
- Tissue
Engineering Group, Institute of Biofunctional Studies, Associated
Unit to the Institute of Polymer Science and Technology (CSIC), Pharmacy
Faculty, Complutense University of Madrid (UCM), Paseo Juan XXIII 1, 28040 Madrid, Spain
- Polymer
Functionalization Group, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Enrique Martínez-Campos
- Tissue
Engineering Group, Institute of Biofunctional Studies, Associated
Unit to the Institute of Polymer Science and Technology (CSIC), Pharmacy
Faculty, Complutense University of Madrid (UCM), Paseo Juan XXIII 1, 28040 Madrid, Spain
- Polymer
Functionalization Group, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Viviana Ramos
- Tissue
Engineering Group, Institute of Biofunctional Studies, Associated
Unit to the Institute of Polymer Science and Technology (CSIC), Pharmacy
Faculty, Complutense University of Madrid (UCM), Paseo Juan XXIII 1, 28040 Madrid, Spain
- Noricum S.L., San Sebastián
de los Reyes, Av. Fuente Nueva, 14, 28703 Madrid, Spain
| | - Carlos Elvira
- Polymer
Functionalization Group, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Alberto Gallardo
- Polymer
Functionalization Group, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Ander Abarrategi
- Haematopoietic
Stem Cell Laboratory, The Francis Crick Institute, 1 Midland
Road, NW1 1AT London, U.K
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Chaves C, Gao C, Hunckler J, Elsawy M, Legagneux J, Renault G, Masquelet AC, de Mel A. Dual-acting biofunctionalised scaffolds for applications in regenerative medicine. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:32. [PMID: 28108960 DOI: 10.1007/s10856-017-5849-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
Off the shelf scaffolds for replacing ultra-small diameter vascular grafts are valuable for reconstruction of diseased or damaged vessels. The limitations for such grafts include optimal handling with ready availability of varied lengths of grafts, graft patency with the ability to replace the function of active cellular mechanisms and adequate mechanical properties to maintain physicochemical function. We used a well-established, solvent casting method for potential tissue replacement scaffold fabrication with incorporated bioactive molecules, which we have previously explored to confer haemocompatibility. These grafts were tested in-vivo within the abdominal aorta of 10 Wistar rats and the patency was clinically and echographically evaluated. Haemocompatibility and endothelialisation were assessed on explants. Biofunctionalised scaffolds were also grafted subcutaneously and intraperitoneally to evaluate integration, inflammation and angiogenesis reactions. The potential wider applications of this dual acting scaffold were evaluated for its interactions with human dermal fibroblasts as well as bronchial epithelial cells. Physicochemical property evaluation of the functionalised grafts has clarified the mechanical strength and permeability. This study confirmed the microsurgical suturability of tubular grafts and graft patency of functionalized scaffolds. The study demonstrated the potential of a dual acting biofunctionalised scaffold's use for a wide range of tissue engineering applications where micro-porous, yet impermeable scaffolds are needed.
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Affiliation(s)
- Camilo Chaves
- Division of Surgery and Interventional Science, University College London, London, UK
- Université Pierre et Marie Curie, 4 Place Jussieu, Paris, 75005, France
- Ecole de Chirurgie, AGEPS, AP-HP, 7 Rue du Fer À Moulin, Paris, 75005, France
| | - Chuanyu Gao
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Jerome Hunckler
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Moustafa Elsawy
- Division of Surgery and Interventional Science, University College London, London, UK
- University College London Hospitals, London, UK
| | - Josette Legagneux
- Ecole de Chirurgie, AGEPS, AP-HP, 7 Rue du Fer À Moulin, Paris, 75005, France
| | - Gilles Renault
- Institut Cochin-INSERM U1016, 27 rue du fbg Saint Jacques, Paris, 75014, France
| | - Alain Charles Masquelet
- Hôpital St Antoine, Service de Chirurgie Orthopédique & Traumatologique, Unité Chirurgie Réparatrice & Chirurgie de la Main, Paris, F-75571, France
| | - Achala de Mel
- Division of Surgery and Interventional Science, University College London, London, UK.
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Signal mingle: Micropatterns of BMP-2 and fibronectin on soft biopolymeric films regulate myoblast shape and SMAD signaling. Sci Rep 2017; 7:41479. [PMID: 28134270 PMCID: PMC5278375 DOI: 10.1038/srep41479] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 12/20/2016] [Indexed: 12/25/2022] Open
Abstract
In vivo, bone morphogenetic protein 2 (BMP-2) exists both in solution and bound to the extracellular matrix (ECM). While these two modes of presentation are known to influence cell behavior distinctly, their role in the niche microenvironment and their functional relevance in the genesis of a biological response has sparsely been investigated at a cellular level. Here we used the natural affinity of BMP-2 for fibronectin (FN) to engineer cell-sized micropatterns of BMP-2. This technique allowed the simultaneous control of the spatial presentation of fibronectin-bound BMP-2 and cell spreading. These micropatterns induced a specific actin and adhesion organization around the nucleus, and triggered the phosphorylation and nuclear translocation of SMAD1/5/8 in C2C12 myoblasts and mesenchymal stem cells, an early indicator of their osteoblastic trans-differentiation. We found that cell spreading itself potentiated a BMP-2-dependent phosphorylation of SMAD1/5/8. Finally, we demonstrated that FN/BMP-2-mediated early SMAD signaling depended on LIM kinase 2 and ROCK, rather than myosin II activation. Altogether, our results show that FN/BMP-2 micropatterns are a useful tool to study the mechanisms underlying BMP-2-mediated mechanotransduction. More broadly, our approach could be adapted to other combinations of ECM proteins and growth factors, opening an exciting avenue to recreate tissue-specific niches in vitro.
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Li X, Gao P, Wan P, Pei Y, Shi L, Fan B, Shen C, Xiao X, Yang K, Guo Z. Novel Bio-functional Magnesium Coating on Porous Ti6Al4V Orthopaedic Implants: In vitro and In vivo Study. Sci Rep 2017; 7:40755. [PMID: 28102294 PMCID: PMC5244406 DOI: 10.1038/srep40755] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 12/09/2016] [Indexed: 11/09/2022] Open
Abstract
Titanium and its alloys with various porous structures are one of the most important metals used in orthopaedic implants due to favourable properties as replacement for hard tissues. However, surface modification is critical to improve the osteointegration of titanium and its alloys. In this study, a bioactive magnesium coating was successfully fabricated on porous Ti6Al4V by means of arc ion plating, which was proved with fine grain size and high film/substrate adhesion. The surface composition and morphology were characterized by X-ray diffraction and SEM equipped with energy dispersive spectroscopy. Furthermore, the in vitro study of cytotoxicity and proliferation of MC3T3-E1 cells showed that magnesium coated porous Ti6Al4V had suitable degradation and biocompatibility. Moreover, the in vivo studies including fluorescent labelling, micro-computed tomography analysis scan and Van-Gieson staining of histological sections indicated that magnesium coated porous Ti6Al4V could significantly promote bone regeneration in rabbit femoral condylar defects after implantation for 4 and 8 weeks, and has better osteogenesis and osteointegration than the bare porous Ti6Al4V. Therefore, it is expected that this bioactive magnesium coating on porous Ti6Al4V scaffolds with improved osteointegration and osteogenesis functions can be used for orthopedic applications.
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Affiliation(s)
- Xiaokang Li
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Peng Gao
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Peng Wan
- Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
| | - Yifeng Pei
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Lei Shi
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Bo Fan
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Chao Shen
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Xin Xiao
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
| | - Zheng Guo
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
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Cai L, Pan Y, Tang S, Li Q, Tang T, Zheng K, Boccaccini AR, Wei S, Wei J, Su J. Macro-mesoporous composites containing PEEK and mesoporous diopside as bone implants: characterization, in vitro mineralization, cytocompatibility, and vascularization potential and osteogenesis in vivo. J Mater Chem B 2017; 5:8337-8352. [PMID: 32264503 DOI: 10.1039/c7tb02344h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Superior in vitro bioactivity, cytocompatibility, and in vivo osteogenesis and vascularization potential.
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Ge N, Wang D, Peng F, Li J, Qiao Y, Liu X. Poly(styrenesulfonate)-Modified Ni-Ti Layered Double Hydroxide Film: A Smart Drug-Eluting Platform. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24491-24501. [PMID: 27579782 DOI: 10.1021/acsami.6b09697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Drug-eluting stents (DESs) are widely used in the palliative treatment of many kinds of cancers. However, the covered polymers used in DESs are usually associated with stent migration and acute cholecystitis. Therefore, developing noncovered drug-loading layers on metal stents is of great importance. In this work, Ni-Ti layered double hydroxide (Ni-Ti LDH) films were prepared on the surface of nitinol via hydrothermal treatment, and the LDH films were further modified by poly(styrenesulfonate) (PSS). The anticancer drug doxorubicin could be effectively loaded onto the modified films, and drug release could be smartly controlled by the pH. Besides, the drug absorption amounts of cancer cells cultured on the films could be effectively improved. These results indicate that the PSS-modified LDH film may become a promising drug-loading platform that can be used in the design of DESs.
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Affiliation(s)
- Naijian Ge
- Intervention Center, Eastern Hepatobilialy Surgery Hospital, The Second Military Medical University , Shanghai 200438, China
| | - Donghui Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
| | - Feng Peng
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
| | - Jinhua Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
| | - Yuqin Qiao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, China
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Surface delivery of tunable doses of BMP-2 from an adaptable polymeric scaffold induces volumetric bone regeneration. Biomaterials 2016; 104:168-81. [PMID: 27454063 DOI: 10.1016/j.biomaterials.2016.06.001] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 05/17/2016] [Accepted: 06/01/2016] [Indexed: 12/28/2022]
Abstract
The rapid and effective bone regeneration of large non-healing defects remains challenging. Bioactive proteins, such as bone morphogenetic protein (BMP)-2, are proved their osteoinductivity, but their clinical use is currently limited to collagen as biomaterial. Being able to deliver BMP-2 from any other biomaterial would broaden its clinical use. This work presents a novel means for repairing a critical size volumetric bone femoral defect in the rat by combining a osteoinductive surface coating (2D) to a polymeric scaffold (3D hollow tube) made of commercially-available PLGA. Using a polyelectrolyte film as BMP-2 carrier, we tune the amount of BMP-2 loaded in and released from the polyelectrolyte film coating over a large extent by controlling the film crosslinking level and initial concentration of BMP-2 in solution. Using microcomputed tomography and quantitative analysis of the regenerated bone growth kinetics, we show that the amount of newly formed bone and kinetics can be modulated: an effective and fast repair was obtained in 1-2 weeks in the best conditions, including complete defect bridging, formation of vascularized and mineralized bone tissue. Histological staining and high-resolution computed tomography revealed the presence of bone regeneration inside and around the tube with spatially distinct organization for trabecular-like and cortical bones. The amount of cortical bone and its thickness increased with the BMP-2 dose. In view of the recent developments in additive manufacturing techniques, this surface-coating technology may be applied in combination with various types of polymeric or metallic scaffolds to offer new perspectives of bone regeneration in personalized medicine.
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