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Xie H, Ruan S, Zhao M, Long J, Ma X, Guo J, Lin X. Preparation and characterization of 3D hydroxyapatite/collagen scaffolds and its application in bone regeneration with bone morphogenetic protein-2. RSC Adv 2023; 13:23010-23020. [PMID: 37529353 PMCID: PMC10388156 DOI: 10.1039/d3ra03034b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/24/2023] [Indexed: 08/03/2023] Open
Abstract
Desirable bone engineering materials should have a conducive three-dimensional (3D) structure and bioactive mediators for guided bone regeneration. In the present study, hydroxyapatite (HA)/collagen (Col) scaffolds were prepared by an optimized freeze-drying process. The porosity, moisture content, and mechanical properties of the composite have been investigated. The micro-morphology and structure were analyzed with scanning electron microscopy (SEM) and transmission electron microscopy (TEM), confirmed that self-cross-linked HA/Col was evenly distributed and formed a 3D porous scaffold. The physicochemical/mechanical characterization was carried out by Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Morphological observation and CCK-8 assay of co-culture cells indicated that HA/Col scaffolds were biocompatible. Then HA/Col scaffolds coupled with recombinant human bone morphogenetic proteins 2 (rhBMP-2) were implanted in the mandibular critical size defect in rats, and histological staining was used to evaluate the bone reconstruction. The result showed that HA/Col coupled with rhBMP-2 could significantly improve the formation of new bone and angiogenesis within the scaffolds as well as the proliferation and differentiation of osteoblasts. Thanks to the encouraging osteogenesis effects, the well-defined 3D scaffolds (HA/Col) cooperating with bioactive agents (rhBMP-2) are expected to be a promising candidate for bone tissue engineering applied to regenerative medicine.
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Affiliation(s)
- Hongyu Xie
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University No. 10 Shuangyong Road Nanning Guangxi 530021 PR China +86-15777128619
| | - Sijie Ruan
- Department of Anesthesiology, Central Hospital of Shaoyang Shaoyang Hunan 422000 China
| | - Minlong Zhao
- Department of Implantology, Anyang Sixth People's Hospital Anyang Henan 455000 China
| | - Jindong Long
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University No. 10 Shuangyong Road Nanning Guangxi 530021 PR China +86-15777128619
| | - Xueling Ma
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University No. 10 Shuangyong Road Nanning Guangxi 530021 PR China +86-15777128619
| | - Jinhong Guo
- Guangxi Medical University Nanning Guangxi 530021 China
| | - Xuandong Lin
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University No. 10 Shuangyong Road Nanning Guangxi 530021 PR China +86-15777128619
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Zheng H, Liu Z, Wang H. Research progress in effect of chewing-side preference on temporomandibular joint and its relationship with temporo-mandibular disorders. Zhejiang Da Xue Xue Bao Yi Xue Ban 2023; 52:386-397. [PMID: 37476950 PMCID: PMC10409910 DOI: 10.3724/zdxbyxb-2023-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/15/2023] [Indexed: 07/22/2023]
Abstract
Chewing-side preference is one of the risk factors for temporomandibular disorders (TMD), and people with chewing-side preference is more prone to have short and displaced condyles, increased articular eminence inclination and glenoid fossa depth. The proportion of TMD patients with chewing-side preference is often higher than that of the normal subjects. Clinical studies have shown a strong correlation between chewing-side preference and TMD symptoms and signs; and animal studies have shown that chewing-side preference can affect the growth, development, damage and repair of the mandible. After long-term unilateral mastication, changes in the stress within the joint cause the imbalance of temporomandibular joint (TMJ) structural reconstruction, the transformation and even destruction of the fiber structure of masticatory muscle, resulting in uncoordinated movement of bilateral muscles. The joint neurogenic diseases caused by the increase of neuropeptide substance P and calcitonin-gene-related-peptide (CGRP) released locally by TMJ may be the mechanism of TMD. This article reviews the research progress of the influence of chewing-side preference on the structure of TMJ, the relationship between chewing-side preference and TMD, and the related mechanisms.
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Affiliation(s)
- Huiyun Zheng
- The Stomatology Hospital, Zhejiang University School of Medicine, Zhejiang University School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Provincial Key Laboratory of Oral Biomedical Research, Cancer Center of Zhejiang University, Hangzhou 310006, China.
| | - Zhichao Liu
- The Stomatology Hospital, Zhejiang University School of Medicine, Zhejiang University School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Provincial Key Laboratory of Oral Biomedical Research, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Huiming Wang
- The Stomatology Hospital, Zhejiang University School of Medicine, Zhejiang University School of Stomatology, Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang Provincial Key Laboratory of Oral Biomedical Research, Cancer Center of Zhejiang University, Hangzhou 310006, China.
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Xu J, Fahmy-Garcia S, Wesdorp MA, Kops N, Forte L, De Luca C, Misciagna MM, Dolcini L, Filardo G, Labberté M, Vancíková K, Kok J, van Rietbergen B, Nickel J, Farrell E, Brama PAJ, van Osch GJVM. Effectiveness of BMP-2 and PDGF-BB Adsorption onto a Collagen/Collagen-Magnesium-Hydroxyapatite Scaffold in Weight-Bearing and Non-Weight-Bearing Osteochondral Defect Bone Repair: In Vitro, Ex Vivo and In Vivo Evaluation. J Funct Biomater 2023; 14:jfb14020111. [PMID: 36826910 PMCID: PMC9961206 DOI: 10.3390/jfb14020111] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/10/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
Despite promising clinical results in osteochondral defect repair, a recently developed bi-layered collagen/collagen-magnesium-hydroxyapatite scaffold has demonstrated less optimal subchondral bone repair. This study aimed to improve the bone repair potential of this scaffold by adsorbing bone morphogenetic protein 2 (BMP-2) and/or platelet-derived growth factor-BB (PDGF-BB) onto said scaffold. The in vitro release kinetics of BMP-2/PDGF-BB demonstrated that PDGF-BB was burst released from the collagen-only layer, whereas BMP-2 was largely retained in both layers. Cell ingrowth was enhanced by BMP-2/PDFG-BB in a bovine osteochondral defect ex vivo model. In an in vivo semi-orthotopic athymic mouse model, adding BMP-2 or PDGF-BB increased tissue repair after four weeks. After eight weeks, most defects were filled with bone tissue. To further investigate the promising effect of BMP-2, a caprine bilateral stifle osteochondral defect model was used where defects were created in weight-bearing femoral condyle and non-weight-bearing trochlear groove locations. After six months, the adsorption of BMP-2 resulted in significantly less bone repair compared with scaffold-only in the femoral condyle defects and a trend to more bone repair in the trochlear groove. Overall, the adsorption of BMP-2 onto a Col/Col-Mg-HAp scaffold reduced bone formation in weight-bearing osteochondral defects, but not in non-weight-bearing osteochondral defects.
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Affiliation(s)
- Jietao Xu
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Shorouk Fahmy-Garcia
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Marinus A. Wesdorp
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Nicole Kops
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Lucia Forte
- Fin-Ceramica Faenza S.p.A, 48018 Faenza, Italy
| | | | | | | | - Giuseppe Filardo
- Applied and Translational Research Center, IRCCS Rizzoli Orthopaedic Institute, 40136 Bologna, Italy
| | - Margot Labberté
- School of Veterinary Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Karin Vancíková
- School of Veterinary Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Joeri Kok
- Department of Biomedical Engineering, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Bert van Rietbergen
- Department of Biomedical Engineering, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Joachim Nickel
- Department Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070 Würzburg, Germany
| | - Eric Farrell
- Department of Oral and Maxillofacial Surgery, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Pieter A. J. Brama
- School of Veterinary Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Gerjo J. V. M. van Osch
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
- Department of Otorhinolaryngology, Erasmus MC, University Medical Center, 3015 GD Rotterdam, The Netherlands
- Department of Biomechanical Engineering, Delft University of Technology, 2628 CD Delft, The Netherlands
- Correspondence: ; Tel.: +31-107043661
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Yao Q, Wu X, Tao C, Gong W, Chen M, Qu M, Zhong Y, He T, Chen S, Xiao G. Osteoarthritis: pathogenic signaling pathways and therapeutic targets. Signal Transduct Target Ther 2023; 8:56. [PMID: 36737426 PMCID: PMC9898571 DOI: 10.1038/s41392-023-01330-w] [Citation(s) in RCA: 220] [Impact Index Per Article: 220.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/06/2023] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
Osteoarthritis (OA) is a chronic degenerative joint disorder that leads to disability and affects more than 500 million population worldwide. OA was believed to be caused by the wearing and tearing of articular cartilage, but it is now more commonly referred to as a chronic whole-joint disorder that is initiated with biochemical and cellular alterations in the synovial joint tissues, which leads to the histological and structural changes of the joint and ends up with the whole tissue dysfunction. Currently, there is no cure for OA, partly due to a lack of comprehensive understanding of the pathological mechanism of the initiation and progression of the disease. Therefore, a better understanding of pathological signaling pathways and key molecules involved in OA pathogenesis is crucial for therapeutic target design and drug development. In this review, we first summarize the epidemiology of OA, including its prevalence, incidence and burdens, and OA risk factors. We then focus on the roles and regulation of the pathological signaling pathways, such as Wnt/β-catenin, NF-κB, focal adhesion, HIFs, TGFβ/ΒΜP and FGF signaling pathways, and key regulators AMPK, mTOR, and RUNX2 in the onset and development of OA. In addition, the roles of factors associated with OA, including MMPs, ADAMTS/ADAMs, and PRG4, are discussed in detail. Finally, we provide updates on the current clinical therapies and clinical trials of biological treatments and drugs for OA. Research advances in basic knowledge of articular cartilage biology and OA pathogenesis will have a significant impact and translational value in developing OA therapeutic strategies.
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Affiliation(s)
- Qing Yao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Xiaohao Wu
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chu Tao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Weiyuan Gong
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Mingjue Chen
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Minghao Qu
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yiming Zhong
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Tailin He
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Sheng Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China.
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Al‐allaq AA, Kashan JS. A review: In vivo studies of bioceramics as bone substitute materials. NANO SELECT 2022. [DOI: 10.1002/nano.202200222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Ali A. Al‐allaq
- Ministry of Higher Education and Scientific Research Office Reconstruction and Projects Baghdad Iraq
| | - Jenan S. Kashan
- Biomedical Engineering Department University of Technology Baghdad Iraq
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Matsumoto R, Yoshii T, Egawa S, Hashimoto M, Hirai T, Inose H, Oh Y, Fujita K, Okawa A, Sotome S. Local Suppression Effect of Paclitaxel-Impregnated Hydroxyapatite/Collagen on Breast Cancer Bone Metastasis in a Rat Model. Spine Surg Relat Res 2022; 6:294-302. [PMID: 35800622 PMCID: PMC9200413 DOI: 10.22603/ssrr.2021-0194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/27/2021] [Indexed: 11/07/2022] Open
Abstract
Introduction Breast cancer is one of the most frequent primary tumors that cause spinal metastases. Metastasis consequences impair both the patient's overall prognosis and quality of life. We previously developed a porous hydroxyapatite collagen composite (HAp/Col) as an osteoconductive scaffold. HAp/Col is a commercially available artificial bone that is frequently utilized in spinal fusion. Because of its high absorbance capacity, HAp/Col is regarded as a good chemical carrier. Methods This study investigated the effect of local administration of paclitaxel combined with HAp/Col scaffold on breast cancer metastasis. High-performance liquid chromatography was used to assess the in vitro release of paclitaxel from HAp/Col. In an in vivo rat model, the inhibitory effects of paclitaxel-impregnated scaffolds on local osteogenesis was examined, and then the local suppression effects on metastatic cancer were investigated. Results In vitro testing revealed that roughly 30% of the paclitaxel was released within 96 hours. Paclitaxel-impregnated HAp/Col inhibited local osteogenesis for the first 8 weeks in a rat femur. However, at 12 weeks following surgery, this negative effect appeared to have subsided. In the metastatic model, all rats in the control group reached the humane endpoint 14 days after surgery. On the other hand, the average time to the endpoint in the paclitaxel group was 26.5 days, which was substantially longer than that in the control group. Long-term survivors treated with paclitaxel had no remaining tumor cells in the femoral bone, and osteogenesis was seen surrounding the HAp/Col. Conclusions Paclitaxel-impregnated HAp/Col reduced local tumor development and extended the time to the target endpoint in rats with metastases from breast cancer. This study shows that local implantation of paclitaxel-impregnated HAp/Col may be a viable therapeutic option for the management of breast cancer metastases.
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Affiliation(s)
- Rempei Matsumoto
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Toshitaka Yoshii
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Satoru Egawa
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | | | - Takashi Hirai
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Hiroyuki Inose
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Yoto Oh
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Koji Fujita
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Atsushi Okawa
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
| | - Shinichi Sotome
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University
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Iwatsu J, Watanuki M, Yoshida S, Hitachi S, Watanabe M, Aizawa T. Clinical outcome of porous hydroxyapatite/collagen graft on bone defects following curettage of bone tumors. J Biomed Mater Res B Appl Biomater 2022; 110:2211-2216. [PMID: 35441487 DOI: 10.1002/jbm.b.35070] [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: 12/28/2021] [Revised: 03/11/2022] [Accepted: 04/01/2022] [Indexed: 11/07/2022]
Abstract
Hydroxyapatite/collagen (HAp/col) has been reported to be a highly useful bone-like nanocomposite. This study included 33 human patients to investigate the details of the clinical outcomes, which are (1) onset of timing of bone regeneration, (2) replacement by regenerated bone of HAp/col and (3) complications, in human cases grafting HAp/col in large bone defects, following curettage of bone tumors. Porous HAp/col initiated bone regeneration approximately 59 days following the surgery. In 15 cases (45%), complete replacement by newly formed bone was observed 12 months after surgery. On the other hand, incomplete replacement of HAp/col at the final follow-up was observed in 13 cases (39%). In these cases, HAp/col could not be detected in the transparent area of postoperative plain radiographs owing to quick absorption; moreover, it was difficult to distinguish whether the transparent area in plain radiographs was remaining HAp/col, recurrence, or remaining tumor. In addition, larger HAp/col implantation volume (≧15 cm3 ) was associated with poorer result of complete replacement (log-rank, p = .005). Further studies are warranted for the construction of a new artificial bone graft substitute that is more quickly and surely regenerated by newly formed bone in large bone defects.
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Affiliation(s)
- Jun Iwatsu
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Munenori Watanuki
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Shinichirou Yoshida
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Shin Hitachi
- Department of Diagnostic Radiology, Tohoku University School of Medicine, Sendai, Japan
| | - Mika Watanabe
- Department of Pathology, Tohoku Kosai Hospital, Sendai, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
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Yoshii T, Hashimoto M, Egawa S, Hirai T, Inose H, Okawa A. Hydroxyapatite/collagen composite graft for posterior lumbar interbody fusion: a comparison with local bone graft. J Orthop Surg Res 2021; 16:639. [PMID: 34689807 PMCID: PMC8543945 DOI: 10.1186/s13018-021-02798-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/13/2021] [Indexed: 11/17/2022] Open
Abstract
Background Autologous bone has been used for posterior lumbar intervertebral fusion (PLIF). However, harvesting autologous bone graft is associated with donor site complications. We previously developed a hydroxyapatite/collagen (HAp/Col) composite as an osteoconductive artificial bone, characterized by having a highly porous structure with sponge‐like elasticity. This study aims to investigate the effectiveness of HAp/Col composite with bone marrow aspirate (BMA) as a graft substitute in PLIF for the treatment of lumbar spinal diseases. Methods This study prospectively investigated patients who received one-level PLIF. For the interbody fusion, two titanium cages were inserted. On the one side of interbody space, HAp/Col composite incorporated with BMA filling the titanium cage was grafted. On the other side, local bone graft (LBG) harvested during decompressive laminotomy was grafted and then one-level instrumentation using pedicle screws was performed. The target levels were at L2/3 in 2 cases, L3/4 in 3 cases, L4/5 in 36 cases, and L5/S in 5 cases. We evaluated clinical symptoms and radiological outcomes of 46 patients and compared the fusion status of HAp/Col composite with that of LBG. Results The 1-year postoperative CT evaluation demonstrated that, in the HAp/Col, a complete fusion was observed in 38 patients (82.6%), whereas in the LBG, a complete fusion was observed in 35 patients (76.1%). There were no statistical differences between the HAp/Col and LBG. In the HAp/Col, incomplete fusion was observed in five patients (10.9%) and non-fusion in two patients (4.3%), and in the LBG, incomplete fusion was observed in nine patients (19.6%) and non-fusion in two patients (4.3%). At 2 years after the surgery, complete fusion increased to 44 patients (95.7%) in the HAp/Col and 41 patients (89.1%) in the LBG. There were no significant differences in the clinical scores for lumbar spine between patients with fusion and non-fusion. Conclusions The HAp/Col composite with BMA in the titanium cage can be effectively used as an alternative to conventional autologous LBG for intervertebral spinal fusion. Trial registration University hospital Medical Information Network, UMIN000045010, July 30th, 2021, Retrospectively registered, https://www.umin.ac.jp/english/.
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Affiliation(s)
- Toshitaka Yoshii
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan.
| | - Motonori Hashimoto
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan
| | - Satoru Egawa
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan
| | - Takashi Hirai
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan
| | - Hiroyuki Inose
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan
| | - Atsushi Okawa
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1 Chome-5-45 Yushima, Bunkyo City, Tokyo, 113-8510, Japan
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Gonçalves AM, Moreira A, Weber A, Williams GR, Costa PF. Osteochondral Tissue Engineering: The Potential of Electrospinning and Additive Manufacturing. Pharmaceutics 2021; 13:983. [PMID: 34209671 PMCID: PMC8309012 DOI: 10.3390/pharmaceutics13070983] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 12/14/2022] Open
Abstract
The socioeconomic impact of osteochondral (OC) damage has been increasing steadily over time in the global population, and the promise of tissue engineering in generating biomimetic tissues replicating the physiological OC environment and architecture has been falling short of its projected potential. The most recent advances in OC tissue engineering are summarised in this work, with a focus on electrospun and 3D printed biomaterials combined with stem cells and biochemical stimuli, to identify what is causing this pitfall between the bench and the patients' bedside. Even though significant progress has been achieved in electrospinning, 3D-(bio)printing, and induced pluripotent stem cell (iPSC) technologies, it is still challenging to artificially emulate the OC interface and achieve complete regeneration of bone and cartilage tissues. Their intricate architecture and the need for tight spatiotemporal control of cellular and biochemical cues hinder the attainment of long-term functional integration of tissue-engineered constructs. Moreover, this complexity and the high variability in experimental conditions used in different studies undermine the scalability and reproducibility of prospective regenerative medicine solutions. It is clear that further development of standardised, integrative, and economically viable methods regarding scaffold production, cell selection, and additional biochemical and biomechanical stimulation is likely to be the key to accelerate the clinical translation and fill the gap in OC treatment.
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Affiliation(s)
| | - Anabela Moreira
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal; (A.M.G.); (A.M.)
| | - Achim Weber
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany;
| | - Gareth R. Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK;
| | - Pedro F. Costa
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal; (A.M.G.); (A.M.)
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Recent advances in the implant-based drug delivery in otorhinolaryngology. Acta Biomater 2020; 108:46-55. [PMID: 32289495 DOI: 10.1016/j.actbio.2020.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/31/2020] [Accepted: 04/03/2020] [Indexed: 12/13/2022]
Abstract
The surgical implant is an interdisciplinary therapeutic modality that offers unique advantages in the daily practice of otorhinolaryngology. Some well-known examples include cochlear implants, bone-anchored hearing aids, sinus stents, and tracheostomy tubes. Neuroprotective, osteogenic, anti-inflammatory, and antimicrobial effects are among their established or pursued functions. Implant-based drug delivery affords an efficient and potent approach to enhancing these therapeutic functions. Recent innovations have infiltrated all four elements of a drug-eluting implant. The purpose of this pre-clinical, biotechnology-oriented review is to discuss these developments in terms of the implant biomaterial, loaded medication, delivery pattern, and system fabrication. Cell-mediated neurotrophin release, fabrication of a hydroxyapatite-supported system, biodegradable polymer-based implants, and multiclass and multidrug delivery are some representative advancements. The ultimate goal here is to bridge the gap between biotechnology advances and clinical needs. The review is concluded with a perspective regarding the future opportunities and challenges in this popular and rapidly developing subject of research. STATEMENT OF SIGNIFICANCE: Surgical implants and local drug delivery are representative modern modalities of surgical treatment and medical treatment, respectively. Their synergy offers unique therapeutic advantages, such as minimal systemic side effects, proximity-related high efficiency, and potential absorbability. The applications of implant-based drug delivery have infiltrated otorhinolaryngology and head & neck surgery, which is well known for its related tissue diversity and surgical complexity. Examples discussed here include cochlear implants, bone-anchored hearing aids, sinus stents, and airway tubes. This timely review focuses primarily on the four fundamental components of an implant-based drug delivery system, namely implant biomaterial, loaded medication, delivery pattern, and system fabrication. A particular emphasis is placed upon the in vitro cellular and in vivo animal studies that demonstrate pre-clinical potentials.
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Egawa S, Hirai K, Matsumoto R, Yoshii T, Yuasa M, Okawa A, Sugo K, Sotome S. Efficacy of Antibiotic-Loaded Hydroxyapatite/Collagen Composites Is Dependent on Adsorbability for Treating Staphylococcus aureus Osteomyelitis in Rats. J Orthop Res 2020; 38:843-851. [PMID: 31691335 PMCID: PMC7155147 DOI: 10.1002/jor.24507] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 10/25/2019] [Indexed: 02/04/2023]
Abstract
Osteomyelitis remains one of the most challenging disorders for orthopedic doctors despite the advancement of therapeutic techniques. The purpose of this study was to investigate the feasibility of local antibiotic administration using hydroxyapatite/collagen (HAp/Col) as a drug delivery system. We hypothesized that higher adsorbability of antibiotics onto HAp/Col will result in more efficacious activity and therefore, treatment of osteomyelitis. Eight antibiotics were examined in this study: amikacin, cefazolin, cefotiam, daptomycin, minocycline, piperacillin, teicoplanin, and vancomycin. Aligning with their adsorbability onto HAp/Col, minocycline, teicoplanin, and vancomycin showed antibacterial effects up to 14 days after subcutaneous implantation in Wistar rats; while antibiotics with reduced adsorbability (cefazolin, cefotiam, piperacillin) had diminished antibacterial effects. Furthermore, when implanted into a rat femur, vancomycin levels from the Hap/Col were detected in the medullary space above the minimum inhibitory concentration for Staphylococcus aureus for 7 days, while cefazolin levels were undetectable. Aligning with these results, implantation of Hap/Col impregnated with vancomycin to the femur in an acute osteomyelitis rat model had a greater therapeutic effect than cefazolin, as measured by the number of bacteria, the extent of bone destruction, and bone regeneration. These results indicated that the adsorbability of antibiotics onto their carrier is important when locally administered and that HAp/Col scaffolds might be a useful antibiotic delivery system for osteomyelitis. © 2019 The Authors. Journal of Orthopaedic Research® published by Wiley Periodicals, Inc. on behalf of Orthopaedic Research Society J Orthop Res 38:843-851, 2020.
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Affiliation(s)
- Satoru Egawa
- Department of Orthopaedic and Spinal Surgery, Graduate SchoolTokyo Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
| | - Keigo Hirai
- Department of Orthopaedic and Spinal Surgery, Graduate SchoolTokyo Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
| | - Rempei Matsumoto
- Department of Orthopaedic and Spinal Surgery, Graduate SchoolTokyo Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic and Spinal Surgery, Graduate SchoolTokyo Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
| | - Masato Yuasa
- Department of Orthopaedic and Spinal Surgery, Graduate SchoolTokyo Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
| | - Atsushi Okawa
- Department of Orthopaedic and Spinal Surgery, Graduate SchoolTokyo Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
| | - Ken Sugo
- HOYA Technosurgical Corporation1‐1‐110, Tsutsujigaoka Akishima‐shiTokyo196‐0012Japan
| | - Shinichi Sotome
- Department of Orthopaedic Research and Development, Graduate SchoolTokyo, Medical and Dental University1‐5‐45 Yushima, Bunkyo‐kuTokyo113‐8519Japan
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12
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Kato A. Atmospheric impregnation behavior of calcium phosphate materials for antibiotic therapy in neurotrauma surgery. PLoS One 2020; 15:e0230533. [PMID: 32182267 PMCID: PMC7077826 DOI: 10.1371/journal.pone.0230533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/02/2020] [Indexed: 11/18/2022] Open
Abstract
As part of a verification model of antibiotic therapy in cranioplasty, we evaluated the impregnation efficiency of interporous calcium phosphate materials with saline under atmospheric pressure and compared it to the efficiency of using the decompression method established by the Japanese Industrial Standard, under which pressure is reduced by 10 kPa. Five types of material formed in 1 mL cubes were selected as test samples: two consisting of hydroxyapatite (HAp) with 85% and 55% porosity and three of β-tricalcium phosphate (β-TCP) with 75%, 67%, and 57% porosity. All test samples showed an impregnation ratio of more than 70%, except for the HAp sample with 55% porosity, which had a ratio of approximately 50%. These high ratios were achieved at only 15 min. The impregnation effects were likely dependent on porosity and were independent of base material, either HAp or β-TCP. Obtaining sufficient impregnation and antimicrobial efficacy in materials with low porosity, which are commonly used in cranioplasty, would require an increased volume of antibiotics rather than increased duration of impregnation. Our findings will enable the simple preparation of drug-impregnated calcium phosphate materials, even in operating rooms not equipped with a large decompression device.
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Affiliation(s)
- Akihito Kato
- Department of Emergency, Disaster, and Critical Care Medicine, Showa University of Medicine, Tokyo, Japan
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13
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Drug-Loaded Biomimetic Ceramics for Tissue Engineering. Pharmaceutics 2018; 10:pharmaceutics10040272. [PMID: 30551594 PMCID: PMC6321415 DOI: 10.3390/pharmaceutics10040272] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/09/2018] [Accepted: 12/11/2018] [Indexed: 12/27/2022] Open
Abstract
The mimesis of biological systems has been demonstrated to be an adequate approach to obtain tissue engineering scaffolds able to promote cell attachment, proliferation, and differentiation abilities similar to those of autologous tissues. Bioceramics are commonly used for this purpose due to their similarities to the mineral component of hard tissues as bone. Furthermore, biomimetic scaffolds are frequently loaded with diverse therapeutic molecules to enhance their biological performance, leading to final products with advanced functionalities. In this review, we aim to describe the already developed bioceramic-based biomimetic systems for drug loading and local controlled release. We will discuss the mechanisms used for the inclusion of therapeutic molecules on the designed systems, paying special attention to the identification of critical parameters that modulate drug loading and release kinetics on these scaffolds.
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14
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Deng ZH, Li YS, Gao X, Lei GH, Huard J. Bone morphogenetic proteins for articular cartilage regeneration. Osteoarthritis Cartilage 2018; 26:1153-1161. [PMID: 29580979 DOI: 10.1016/j.joca.2018.03.007] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 02/18/2018] [Accepted: 03/19/2018] [Indexed: 02/02/2023]
Abstract
Degeneration of articular cartilage (AC) tissue is the most common cause of osteoarthritis (OA) and rheumatoid arthritis. Bone morphogenetic proteins (BMPs) play important roles in bone and cartilage formation. This article reviews the experimental and clinical applications of BMPs in cartilage regeneration. Experimental evidence indicates that BMPs play an important role in protection against cartilage damage caused by inflammation or trauma, by binding to different receptor combinations and, consequently, activating different intracellular signaling pathways. Loss of function of BMP-related receptors contributes to the decreased intrinsic repair capacity of damaged cartilage and, thus, the multifunctional effects of BMPs make them attractive tools for the treatment of cartilage damage in patients with degenerative diseases. However, the development of BMP therapy as a treatment modality for cartilage regeneration has been hampered by certain factors, such as the eligibility of participants in clinical trials, financial support, drug delivery carrier safety, availabilities of effective scaffolds, appropriate selection of optimal dose and timing of administration, and side effects. Further research is needed to overcome these issues for future routine clinical applications. Research and development leading to the successful application of BMPs can initiate a new era in the treatment of cartilage degenerative diseases like OA.
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Affiliation(s)
- Z H Deng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China; Department of Orthopaedic Surgery, Center for Tissue Engineering and Aging Research, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA; Department of Orthopedics, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong Province, China
| | - Y S Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - X Gao
- Department of Orthopaedic Surgery, Center for Tissue Engineering and Aging Research, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA; The Steadman Philippon Research Institute, Vail, CO, USA
| | - G H Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.
| | - J Huard
- Department of Orthopaedic Surgery, Center for Tissue Engineering and Aging Research, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA; The Steadman Philippon Research Institute, Vail, CO, USA.
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15
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Howie RN, Durham E, Oakes B, Grey Z, Smith J, Campbell P, LaRue A, Steed M, Muise-Helmericks R, Cray J. Testing a novel nanofibre scaffold for utility in bone tissue regeneration. J Tissue Eng Regen Med 2018; 12:2055-2066. [PMID: 30058251 DOI: 10.1002/term.2740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 12/20/2022]
Abstract
Many variables serve to alter the process of bone remodelling and diminish regeneration including the size and nature of the wound bed and health status of the individual. To overcome these inhibitory factors, tissue-engineered osteoconductive scaffolds paired with various growth factors have been utilized clinically. However, many limitations still remain, for example, bone morphogenetic protein 2 (BMP2) can lead to rampant inflammation, ectopic bone formation, and graft failure. Here, we studied the ability for a nanofiber scaffold (Talymed) to accelerate BMP2 growth factor-induced bone healing compared with the traditional absorbable collagen sponge (ACS) delivery system. One hundred fifty-five adult wild type mice were arranged in 16 groups by time, 4 and 8 weeks, and treatment, ACS or Talymed, loaded with control, low, medium, or high dosages of BMP2. Skulls were subjected to microCT, biomechanical, and histological analysis to assess bone regeneration. The use of Talymed within the defect site was found to decrease the bone volume, bone formation rate, and alkaline phosphatase activity compared with ACS/BMP2 combinations. Interestingly, though Talymed regenerated less bone, the regenerate was found to have a greater hardness value than that of bone within the ACS groups. However, the difference in bone hardness between scaffolds was not detectable by 8 weeks. Based on these results, we found that the nanofiber scaffold generated a better quality of bone regenerate at 4 weeks but, due to the lack of overall bone formation and the inhibition of normal remodelling processes, was not as efficacious as the current clinical standard ACS/BMP2 therapy.
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Affiliation(s)
- R Nicole Howie
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Emily Durham
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Brayden Oakes
- College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Zachary Grey
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Jason Smith
- Engineering Reseacher Accelerated and Integrated Innovation Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Phil Campbell
- Institute for Complex Engineering Systems, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Amanda LaRue
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, and Ralph H. Johnston Department of Veterans Affairs, Charleston, South Carolina
| | - Martin Steed
- Department of Oral and Maxillofacial Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Robin Muise-Helmericks
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - James Cray
- Division of Anatomy, College of Medicine, The Ohio State University, Columbus, Ohio
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16
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Bar A, Ruvinov E, Cohen S. Live imaging flow bioreactor for the simulation of articular cartilage regeneration after treatment with bioactive hydrogel. Biotechnol Bioeng 2018; 115:2205-2216. [DOI: 10.1002/bit.26736] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/09/2018] [Accepted: 05/22/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Assaf Bar
- The Avram and Stella Goldstein‐Goren Department of Biotechnology EngineeringBen‐Gurion University of the NegevBeer‐Sheva Israel
| | - Emil Ruvinov
- The Avram and Stella Goldstein‐Goren Department of Biotechnology EngineeringBen‐Gurion University of the NegevBeer‐Sheva Israel
| | - Smadar Cohen
- The Avram and Stella Goldstein‐Goren Department of Biotechnology EngineeringBen‐Gurion University of the NegevBeer‐Sheva Israel
- Regenerative Medicine and Stem Cell (RMSC) Research CenterBen‐Gurion University of the NegevBeer‐Sheva Israel
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17
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Natural Origin Materials for Osteochondral Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1058:3-30. [DOI: 10.1007/978-3-319-76711-6_1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Whitney KE, Liebowitz A, Bolia IK, Chahla J, Ravuri S, Evans TA, Philippon MJ, Huard J. Current perspectives on biological approaches for osteoarthritis. Ann N Y Acad Sci 2018; 1410:26-43. [PMID: 29265418 DOI: 10.1111/nyas.13554] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 10/18/2017] [Accepted: 10/25/2017] [Indexed: 12/18/2022]
Abstract
Musculoskeletal injuries that disrupt the structure and function of diarthrodial joints can cause permanent biomechanical alterations and lead to a more severe, chronic condition. Despite advancements that have been made to restore tissue function and delay the need for joint replacement, there are currently no disease-modifying therapies for osteoarthritis (OA). To reduce the risk of OA, innovative preventive medicine approaches have been developed over the last decade to treat the underlying pathology. Several biological approaches are promising treatment modalities for various stages of OA owing to their minimally invasive nature and actively dynamic physiological mechanisms that attenuate tissue degradation and inflammatory responses. Individualized growth factor and cytokine therapies, tissue-engineered biomaterials, and cell-based therapies have revolutionary potential for orthopedic applications; however, the paucity of standardization and categorization of biological components and their counterparts has made it difficult to determine their clinical and biological efficacy. Cell-based therapies and tissue-engineered biologics have become lucrative in sports medicine and orthopedics; nonetheless, there is a continued effort to produce a biological treatment modality tailored to target intra-articular structures that recapitulates tissue function. Advanced development of these biological treatment modalities will potentially optimize tissue healing, regeneration, and joint preservation strategies. Therefore, the purpose of this paper is to review current concepts on several biological treatment approaches for OA.
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Affiliation(s)
- Kaitlyn E Whitney
- Steadman Philippon Research Institute, Vail, Colorado.,The Steadman Clinic, Vail, Colorado
| | | | | | - Jorge Chahla
- Steadman Philippon Research Institute, Vail, Colorado
| | | | - Thos A Evans
- Steadman Philippon Research Institute, Vail, Colorado.,The Steadman Clinic, Vail, Colorado
| | - Marc J Philippon
- Steadman Philippon Research Institute, Vail, Colorado.,The Steadman Clinic, Vail, Colorado
| | - Johnny Huard
- Steadman Philippon Research Institute, Vail, Colorado.,The University of Texas Health Science Center at Houston, Houston, Texas
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19
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Wei X, Egawa S, Matsumoto R, Yasuda H, Hirai K, Yoshii T, Okawa A, Nakajima T, Sotome S. Augmentation of fracture healing by hydroxyapatite/collagen paste and bone morphogenetic protein-2 evaluated using a rat femur osteotomy model. J Orthop Res 2018; 36:129-137. [PMID: 28681967 DOI: 10.1002/jor.23646] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/30/2017] [Indexed: 02/04/2023]
Abstract
In fracture treatment, biological bone union generally depends on the bone's natural fracture healing capacity, even in surgically treated cases. Hydroxyapatite/collagen composite (HAp/Col) has high osteoconductivity and stimulates osteogenic progenitors. Furthermore, it has the potent capacity to adsorb bone morphogenetic proteins (BMPs). In this study, we prepared an injectable HAp/Col paste and evaluated its augmentation of bone union. Furthermore, the effect of HAp/Col paste combined with BMP-2 was also evaluated. We used a rat femur osteotomy model with a defect size of 1 mm. Male Wistar rats were assigned to one of the following four groups; a control group without any implant, a HAp/Col implant group, a group that received an absorbable collagen sponge (ACS) implant impregnated with BMP-2 (1 μg), and a group that received a HAp/Col implant impregnated with BMP-2 implant. Micro-CT analysis, three-point bending tests, and histological evaluation were performed. Bone union was achieved in two of eight cases in the HAp/Col group, five of eight cases in the ACS + BMP-2 group, and all cases in the HAp/Col + BMP-2 group at 8 weeks post-surgery. The control group did not achieve bone union. In addition, in the HAp/Col + BMP-2 group, the biomechanical strength of the fused femurs was comparable to that of the contralateral intact femur; the ratio of the mechanical load at the breaking point of the osteotomy side relative to that of the contralateral side was 1.00 ± 0.151 (SD). These results indicate that HAp/Col paste with or without BMP-2 augments bone union. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:129-137, 2018.
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Affiliation(s)
- Xuetao Wei
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Satoru Egawa
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Renpei Matsumoto
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Hiroaki Yasuda
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Keigo Hirai
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Atsushi Okawa
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Takehiko Nakajima
- HOYA Technosurgical Corporation, 1-1-110, Tsutsujigaoka Akishima-shi, Tokyo, 196-0012, Japan
| | - Shinichi Sotome
- Department of Orthopaedic and Spinal Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Orthopaedic and Trauma Research, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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20
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Kajiwara D, Ikoma T. Collagen and Hydroxyapatite Composite Membranes as Drug-Carrying Support for Biomedical Applications. ACTA ACUST UNITED AC 2017. [DOI: 10.1557/adv.2017.26] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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21
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Abstract
In this Editor's Review, articles published in 2015 are organized by category and briefly summarized. We aim to provide a brief reflection of the currently available worldwide knowledge that is intended to advance and better human life while providing insight for continued application of technologies and methods of organ Replacement, Recovery, and Regeneration. As the official journal of The International Federation for Artificial Organs, The International Faculty for Artificial Organs, the International Society for Rotary Blood Pumps, the International Society for Pediatric Mechanical Cardiopulmonary Support, and the Vienna International Workshop on Functional Electrical Stimulation, Artificial Organs continues in the original mission of its founders "to foster communications in the field of artificial organs on an international level." Artificial Organs continues to publish developments and clinical applications of artificial organ technologies in this broad and expanding field of organ Replacement, Recovery, and Regeneration from all over the world. We take this time also to express our gratitude to our authors for providing their work to this journal. We offer our very special thanks to our reviewers who give so generously of their time and expertise to review, critique, and especially provide meaningful suggestions to the author's work whether eventually accepted or rejected. Without these excellent and dedicated reviewers, the quality expected from such a journal could not be possible. We also express our special thanks to our Publisher, John Wiley & Sons for their expert attention and support in the production and marketing of Artificial Organs. We look forward to reporting further advances in the coming years.
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22
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Biomimetic composite scaffolds containing bioceramics and collagen/gelatin for bone tissue engineering - A mini review. Int J Biol Macromol 2016; 93:1390-1401. [PMID: 27316767 DOI: 10.1016/j.ijbiomac.2016.06.043] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 06/03/2016] [Accepted: 06/13/2016] [Indexed: 12/13/2022]
Abstract
Bone is a natural composite material consisting of an organic phase (collagen) and a mineral phase (calcium phosphate, especially hydroxyapatite). The strength of bone is attributed to the apatite, while the collagen fibrils are responsible for the toughness and visco-elasticity. The challenge in bone tissue engineering is to develop such biomimetic composite scaffolds, having a balance between biological and biomechanical properties. This review summarizes the current state of the field by outlining composite scaffolds made of gelatin/collagen in combination with bioactive ceramics for bone tissue engineering application.
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23
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Takato T. Tissue Engineering in Bone: The Contention of a Hundred Schools of Thought. Artif Organs 2016; 40:331-3. [PMID: 27076203 DOI: 10.1111/aor.12739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tsuyoshi Takato
- Department of Oral and Maxillofacial Surgery, The University of Tokyo Hospital, Tokyo, Japan.
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24
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Shao RX, Quan RF, Huang XL, Wang T, Xie SJ, Gao HH, Wei XC, Yang DS. Evaluation of porous gradient hydroxyapatite/zirconia composites for repair of lumbar vertebra defect in dogs. J Biomater Appl 2016; 30:1312-21. [PMID: 26809701 DOI: 10.1177/0885328215627616] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective To evaluate the effects of porous gradient composites with hydroxyapatite/zirconia and autologous iliac in repair of lumbar vertebra body defects in dogs. Methods (1) New porous gradient hydroxyapatite/zirconia composites were prepared using foam immersion, gradient compound and high temperature sintering; (2) A total of 18 adult beagle dogs, aged five to eight months and weighted 10–13 kg, were randomly assigned into two subgroups, which were implanted with new porous gradient hydroxyapatite/zirconia composites (subgroup A in 12) or autologous iliac bone (subgroup B in 6); (3) The post-operative data were analyzed and compared between the subgroups to repair the vertebral body defect by roentgenoscopy, morphology and biomechanics. Results The porosity of new porous gradient hydroxyapatite/zirconia composites is at 25 poles per inch, and the size of pores is at between 150 and 300 µm. The post-operative roentgenoscopy displayed that new-bone formation is increased gradually, and the interface between composites and host-bone becomes became blur, and the new-bone around the composites were integrated into host-bone at 24 weeks postoperatively in subgroup A. As to subgroup B, the resorption and restructure were found at six weeks after the surgery, and the graft-bone and host-bone have been integrated completely without obvious boundary at 24 weeks postoperatively. Histomorphologic study showed that the amount of bone within pores of the porous gradient hydroxyapatite/zirconia composites increased continuously with a prolonged implantation time, and that partial composites were degradated and replaced by new-bone trabeculae. There was no significant difference between subgroups ( P > 0.05) in the ultimate compressive strengths. Conclusion New porous gradient hydroxyapatite/zirconia composites can promote the repair of bony defect, and induce bone tissue to ingrow into the pores, which may be applied widely to the treatment of bony defect in the future.
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Affiliation(s)
- Rong-Xue Shao
- Research Institute of Orthopedics, Zhejiang Chinese Medical University, Zhejiang, China
| | - Ren-Fu Quan
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Zhejiang, China
| | - Xiao-Long Huang
- Research Institute of Orthopedics, Zhejiang Chinese Medical University, Zhejiang, China
| | - Tuo Wang
- Research Institute of Orthopedics, Zhejiang Chinese Medical University, Zhejiang, China
| | - Shang-Ju Xie
- Department of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Zhejiang, China
| | - Huan-Huan Gao
- Yunnan University of Traditional Chinese Medicine, YunNan, China
| | - Xi-Cheng Wei
- School of Materials Science and Engineering, Shanghai University, Shanghai, China
| | - Di-Sheng Yang
- Department of Orthopedics, The Second Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China
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