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Kim JH, Ha DH, Han ES, Choi Y, Koh J, Joo I, Kim JH, Cho DW, Han JK. Feasibility and safety of a novel 3D-printed biodegradable biliary stent in an in vivo porcine model: a preliminary study. Sci Rep 2022; 12:15875. [PMID: 36151222 PMCID: PMC9508112 DOI: 10.1038/s41598-022-19317-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/26/2022] [Indexed: 11/24/2022] Open
Abstract
To assess the feasibility and safety of a novel 3D-printed biodegradable biliary stent using polycaprolactone (PCL) in an in vivo porcine model. In this animal study using domestic pigs, biodegradable radiopaque biliary stents made of polycaprolactone (PCL) and barium sulfate were produced using 3D printing and surgically inserted into the common bile duct (CBD) of pigs (stent group, n = 12). Another five pigs were allocated to the control group that only underwent resection and anastomosis of the CBD without stent insertion. To check the position and status of the stents and stent-related complications, follow-up computed tomography (CT) was performed every month. The pigs were sacrificed 1 or 3 months after surgery, and their excised CBD specimens were examined at both the macroscopic and microscopic levels. Three pigs (one in the stent group and two in the control group) died within one day after surgery and were excluded from further analysis; the remaining 11 in the stent group and 3 in the control group survived the scheduled follow-up period (1 month, 5 and 1; and 3 months, 6 and 2 in stent and control groups, respectively). In all pigs, no clinical symptoms or radiologic evidence of biliary complications was observed. In the stent group (n = 11), stent migration (n = 1 at 3 months; n = 2 at 1 month) and stent fracture (n = 3 at 2 months) were detected on CT scans. Macroscopic evaluation of the stent indicated no significant change at 1 month (n = 3) or fragmentation with discoloration at 3 months (n = 5). On microscopic examination of CBD specimens, the tissue inflammation score was significantly higher in the stent group than in the control group (mean ± standard deviation (SD), 5.63 ± 2.07 vs. 2.00 ± 1.73; P = 0.039) and thickness of fibrosis of the CBD wall was significantly higher than that of the control group (0.46 ± 0.12 mm vs. 0.21 ± 0.05 mm; P = 0.012). Despite mild bile duct inflammation and fibrosis, 3D-printed biodegradable biliary stents showed good feasibility and safety in porcine bile ducts, suggesting their potential for use in the prevention of postoperative biliary strictures.
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Affiliation(s)
- Jae Hyun Kim
- Department of Radiology, Seoul National University Hospital, 28, Yongon-dong, Chongno-gu, Seoul, 110-744, Republic of Korea
| | - Dong-Heon Ha
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Eui Soo Han
- Department of Surgery, Seoul National University Hospital, Seoul, Republic of Korea
| | - YoungRok Choi
- Department of Surgery, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jiwon Koh
- Department of Pathology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ijin Joo
- Department of Radiology, Seoul National University Hospital, 28, Yongon-dong, Chongno-gu, Seoul, 110-744, Republic of Korea
| | - Jung Hoon Kim
- Department of Radiology, Seoul National University Hospital, 28, Yongon-dong, Chongno-gu, Seoul, 110-744, Republic of Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Joon Koo Han
- Department of Radiology, Seoul National University Hospital, 28, Yongon-dong, Chongno-gu, Seoul, 110-744, Republic of Korea.
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Ghelich P, Kazemzadeh-Narbat M, Najafabadi AH, Samandari M, Memic A, Tamayol A. (Bio)manufactured Solutions for Treatment of Bone Defects with Emphasis on US-FDA Regulatory Science Perspective. ADVANCED NANOBIOMED RESEARCH 2022; 2:2100073. [PMID: 35935166 PMCID: PMC9355310 DOI: 10.1002/anbr.202100073] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Bone defects, with second highest demand for surgeries around the globe, may lead to serious health issues and negatively influence patient lives. The advances in biomedical engineering and sciences have led to the development of several creative solutions for bone defect treatment. This review provides a brief summary of bone graft materials, an organized overview of top-down and bottom-up (bio)manufacturing approaches, plus a critical comparison between advantages and limitations of each method. We specifically discuss additive manufacturing techniques and their operation mechanisms in detail. Next, we review the hybrid methods and promising future directions for bone grafting, while giving a comprehensive US-FDA regulatory science perspective, biocompatibility concepts and assessments, and clinical considerations to translate a technology from a research laboratory to the market. The topics covered in this review could potentially fuel future research efforts in bone tissue engineering, and perhaps could also provide novel insights for other tissue engineering applications.
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Affiliation(s)
- Pejman Ghelich
- Department of Biomedical Engineering, University of Connecticut, Farmington, Connecticut, 06030, USA
| | | | | | - Mohamadmahdi Samandari
- Department of Biomedical Engineering, University of Connecticut, Farmington, Connecticut, 06030, USA
| | - Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut, Farmington, Connecticut, 06030, USA
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Park H, Choi JW, Jeong WS. Clinical Application of Three-Dimensional Printing of Polycaprolactone/Beta-Tricalcium Phosphate Implants for Cranial Reconstruction. J Craniofac Surg 2022; 33:1394-1399. [PMID: 35261367 PMCID: PMC9275841 DOI: 10.1097/scs.0000000000008595] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/12/2022] [Indexed: 11/25/2022] Open
Abstract
Polycaprolactone (PCL) implants are a biodegradable polymeric material with appropriate mechanical strength and durability for use in cranioplasty. They can be manufactured as patient- customized implants using a three-dimensional (3D) printer. Herein, the authors aimed to share our experience in cranioplasty of patients with deformed and asymmetric skulls using PCL/beta- tricalcium phosphate (ß-TCP) implants. Seven patients underwent cranioplasty using patient-specific PCL/ß-TCP implants. Cranial computed tomography images were converted to a 3D model and mirrored to design a patient-specific implant. Based on the 3D simulation, an implant was 3D printed using PCL/ß-TCP. A 6-month follow-up was conducted with periodic visits and computed tomography scans. Symmetry after surgery and complications were evaluated. Postoperatively, the soft tissue volumes increased to 15.8 ± 17.2 cm3 and 14.9 ± 15.7 cm3 at 2 weeks and 6 months of follow-up, respectively. The volume change from 2 weeks to 6 months was —4.4 ± 2.5%. Six patients achieved complete symmetry after cranioplasty, whereas 1 patient noticed partial symmetry. The symmetry remained unchanged at 6 months of follow-up. Upon palpation to assess smoothness, 6 patients exhibited a smooth edge interface, whereas 1 patient had a slightly irregular edge. Based on these findings, 3D-printed PCL/ß-TCP implants are an excellent material for cranioplasty, and a favorable cosmetic outcome can be achieved. Specifically, these novel PCL/ß-TCP implants have good biocompatibility and mechanical strength without any postoperative foreign body reaction.
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Affiliation(s)
- Hojin Park
- Department of Plastic and Reconstructive Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
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Hasanzadeh R, Azdast T, Mojaver M, Darvishi MM, Park CB. Cost-effective and reproducible technologies for fabrication of tissue engineered scaffolds: The state-of-the-art and future perspectives. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Wang X, Xiang L, Peng Y, Dai Z, Hu Y, Pan X, Zhou X, Zhang H, Feng B. Gelatin/Polycaprolactone Electrospun Nanofibrous Membranes: The Effect of Composition and Physicochemical Properties on Postoperative Cardiac Adhesion. Front Bioeng Biotechnol 2021; 9:792893. [PMID: 34938724 PMCID: PMC8685426 DOI: 10.3389/fbioe.2021.792893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Cardiovascular diseases have become a major threat to human health. The adhesion formation is an inevitable pathophysiological event after cardiac surgery. We have previously shown that gelatin/polycaprolactone (GT/PCL, mass ratio 50:50) electrospun nanofibrous membranes have high potential in preventing postoperative cardiac adhesion, but the effect of GT:PCL composition on anti-adhesion efficacy was not investigated. Herein, nanofibrous membranes with different GT:PCL mass ratios of 0:100, 30:70, 50:50, and 70:30 were prepared via electrospinning. The 70:30 membrane failed to prevent postoperative cardiac adhesion, overly high GT contents significantly deteriorated the mechanical properties, which complicated the suturing during surgery and hardly maintained the structural integrity after implantation. Unexpectedly, the 0:100 membrane (no gelatin contained) could not effectively prevent either, since its large pore size allowed the penetration of numerous inflammatory cells to elicit a severe inflammatory response. Only the GT:PCL 50:50 membrane exhibited excellent mechanical properties, good biocompatibility and effective anti-cell penetration ability, which could serve as a physical barrier to prevent postoperative cardiac adhesion and might be suitable for other biomedical applications such as wound healing, guided tissue or bone regeneration.
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Affiliation(s)
- Xingang Wang
- Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Li Xiang
- Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yongxuan Peng
- Department of Pediatric Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zihao Dai
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Yuqing Hu
- Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoting Pan
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Xingliang Zhou
- Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Zhang
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Bei Feng
- Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Invitro and Invivo Study of PCL-Hydrogel Scaffold to Advance Bioprinting Translation in Microtia Reconstruction. J Craniofac Surg 2021; 32:1931-1936. [PMID: 33177423 DOI: 10.1097/scs.0000000000007173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Bioprinting has shown promise in the area of microtia reconstruction. However clinical translation has been challenged by the lack of robust techniques to control delivery of stem cells. Hybrid printing allowing multiple materials, both cell and support, to be printed together may overcome these challenges. OBJECTIVE This study assesses the degradation behavior and tissue compatibility of hybrid scaffolds (PCL-Hydrogel) compared to single material Polycaprolactone (PCL) scaffolds in-vitro and in-vivo. Sheep demonstrate similar fascial anatomy to humans. This is the first reported study using a sheep model to study hybrid scaffolds for microtia. METHODS PCL and PCL-Hydrogel samples of increasing porosity were subjected to an accelerated enzymatic degradation assay to study degradation behavior in-vitro. In addition, a 6-month study using Merino-Dorset sheep was conducted to compare the biological reaction of the host to PCL and PCL-hydrogel scaffolds. RESULTS In-vitro degradation showed homogenous degradation of the scaffold. PCL presented the dominating influence on degradation volume compared to hydrogel. In-vivo, there was no evidence of skin irritation or infection over 6 months in both control and test, though PCL-hydrogel scaffolds showed higher levels of tissue ingrowth. CONCLUSION Homogenous degradation pattern of porous scaffolds may create less surrounding tissue irritation. Hybrid scaffolds had good biological compatibility and showed better tissue ingrowth than PCL alone.
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Grzeskowiak RM, Alghazali KM, Hecht S, Donnell RL, Doherty TJ, Smith CK, Anderson DE, Biris AS, Adair HS. Influence of a novel scaffold composed of polyurethane, hydroxyapatite, and decellularized bone particles on the healing of fourth metacarpal defects in mares. Vet Surg 2021; 50:1117-1127. [PMID: 33948951 PMCID: PMC8360067 DOI: 10.1111/vsu.13608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 01/04/2021] [Accepted: 01/24/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To determine the effect of a novel scaffold, designed for use in bone regeneration, on healing of splint bone segmental defects in mares. STUDY DESIGN In vivo experimental study. SAMPLE POPULATION Five adult mares (4-10 years old; mean weight, 437.7 kg ± 29 kg). METHODS Bilateral 2-cm full-thickness defects were created in the fourth metacarpal bones (MCIV) of each horse. Each defect was randomly assigned to either a novel scaffold treatment (n = 5) or an untreated control (n = 5). The scaffold was composed of polyurethane, hydroxyapatite, and decellularized bone particles. Bone healing was assessed for a period of 60 days by thermography, ultrasonography, radiography, and computed tomography (CT). Biopsies of each defect were performed 60 days after surgery for histological evaluation. RESULTS On the basis of radiographic analysis, scaffold-treated defects had greater filling (67.42% ± 26.7%) compared with untreated defects (35.88% ± 32.7%; P = .006). After 60 days, CT revealed that the density of the defects treated with the scaffolds (807.80 ± 129.6 Hounsfield units [HU]) was greater than density of the untreated defects (464.80 ± 81.3 HU; P = .004). Evaluation of histology slides provided evidence of bone formation within an average of 9.43% ± 3.7% of the cross-sectional area of scaffolds in contrast to unfilled defects in which connective tissue was predominant throughout the biopsy specimens. CONCLUSION The novel scaffold was biocompatible and supported bone formation within the MCIV segmental defects. CLINICAL SIGNIFICANCE This novel scaffold offers an effective option for filling bone voids in horses when support of bone healing is indicated.
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Affiliation(s)
- Remigiusz M. Grzeskowiak
- Department of Large Animal Clinical SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Karrer M. Alghazali
- Center for Integrative Nanotechnology SciencesUniversity of Arkansas at Little RockLittle RockArkansasUSA
| | - Silke Hecht
- Department of Small Animal Clinical SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Robert L. Donnell
- Department of Biomedical and Diagnostic SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Thomas J. Doherty
- Department of Large Animal Clinical SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Christopher K. Smith
- Department of Small Animal Clinical SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
| | - David E. Anderson
- Department of Large Animal Clinical SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Alexandru S. Biris
- Center for Integrative Nanotechnology SciencesUniversity of Arkansas at Little RockLittle RockArkansasUSA
| | - Henry S. Adair
- Department of Large Animal Clinical SciencesThe University of Tennessee College of Veterinary MedicineKnoxvilleTennesseeUSA
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Tian Y, Liang K, Ji Y. Fabrication of poly (1, 8-octanediol-co-Pluronic F127 citrate)/chitin nanofibril/bioactive glass (POFC/ChiNF/BG) porous scaffold via directional-freeze-casting. JOURNAL OF POLYMER ENGINEERING 2020. [DOI: 10.1515/polyeng-2019-0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The citrate-based thermoset elastomer is a promising candidate for bone scaffold material, but the harsh curing condition made it difficult to fabricate porous structure. Recently, poly (1, 8-octanediol-co-Pluronic F127 citrate) (POFC) porous scaffold was creatively fabricated by chitin nanofibrils (ChiNFs) supported emulsion-freeze-casting. Thanks to the supporting role of ChiNFs, the lamellar pore structure formed by directional freeze-drying was maintained during the subsequent thermocuring. Herein, bioactive glass (BG) was introduced into the POFC porous scaffolds to improve bioactivity. It was found the complete replacement of ChiNF particles with BG particles could not form a stable porous structure; however, existing at least 15 wt% ChiNF could ensure the formation of lamellar pore, and the interlamellar distance increased with BG ratios. Thus, the BG granules did not contribute to the formation of pore structure like ChiNFs, however, they surely endowed the scaffolds with enhanced mechanical properties, improved osteogenesis bioactivity, better cytocompatibility as well as quick degradation rate. Reasonably adjusting BG ratios could balance the requirements of porous structure and bioactivity.
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Affiliation(s)
- Yaling Tian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials , College of Materials Science and Engineering , Donghua University , 2999 North Renmin Road , Shanghai , 201620, PR China
| | - Kai Liang
- College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , 2999 North Renmin Road , Shanghai , 201620, PR China
| | - Yali Ji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials , College of Materials Science and Engineering , Donghua University , 2999 North Renmin Road , Shanghai , 201620, PR China
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Banikazemi S, Rezaei M, Rezaei P, Babaie A, Eyvazzadeh‐Kalajahi A. Preparation of electrospun shape memory polyurethane fibers in optimized electrospinning conditions via response surface methodology. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4940] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Simin Banikazemi
- Institute of Polymeric MaterialsSahand University of Technology Tabriz Iran
- Faculty of Polymer EngineeringSahand University of Technology Tabriz Iran
| | - Mostafa Rezaei
- Institute of Polymeric MaterialsSahand University of Technology Tabriz Iran
- Faculty of Polymer EngineeringSahand University of Technology Tabriz Iran
| | - Pezhman Rezaei
- Institute of Polymeric MaterialsSahand University of Technology Tabriz Iran
- Faculty of Polymer EngineeringSahand University of Technology Tabriz Iran
| | - Amin Babaie
- Institute of Polymeric MaterialsSahand University of Technology Tabriz Iran
- Faculty of Polymer EngineeringSahand University of Technology Tabriz Iran
| | - Alireza Eyvazzadeh‐Kalajahi
- Institute of Polymeric MaterialsSahand University of Technology Tabriz Iran
- Faculty of Polymer EngineeringSahand University of Technology Tabriz Iran
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Wang X, Ai A, Yu Z, Deng M, Liu W, Zhou G, Li W, Zhang W, Cao Y, Wang X. Dual-modal non-invasive imaging in vitro and in vivo monitoring degradation of PLGA scaffold based gold nanoclusters. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110307. [PMID: 31761160 DOI: 10.1016/j.msec.2019.110307] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 09/25/2019] [Accepted: 10/11/2019] [Indexed: 12/22/2022]
Abstract
Biodegradable scaffolds play an important role in tissue engineering, and appropriate degradation and resorption rates of these scaffolds are necessary to accommodate tissue growth. Synthetic polymers are frequently used because of their ease of production, good biocompatibility and controllable degradation rates. However, monitoring the degradation of these polymers in vivo by a noninvasive approach remains limited. In this study, we designed a composite scaffold by labeling poly(lactic-co-glycolic acid) (PLGA) with gold nanoclusters (Au NCs), which were used for tracking in vivo degradation through dual-modal fluorescence/computed tomography (CT) imaging. The diameter of the Au NCs was approximately 2.5 nm, and the emission peak was at a wavelength of 700 nm. After labeling PLGA with the Au NCs, the fluorescence intensity of the Au NC/PLGA composite scaffold reached 9.0 × 109 (p/s/cm2/sr)/(μW/cm2), and the CT density of the scaffold increased to 200 HU. After the composite scaffold was implanted subcutaneously into nude mice, a continuous decrease in the fluorescence signal and CT value was observed. The mean fluorescence intensity was 8.3 × 109, 3.17 × 109, 2.26 × 109, 2.11 × 109, and 1.82 × 109 (p/s/cm2/sr)/(μW/cm2) from the first week to the fifth week, respectively. The mean CT value changed from 222.6 to 185.9, 149.1, 112.5, and 55.2 (Hounsfield unit, HU) at the different timepoints. Compared with the change in the fluorescence intensity, the change in the CT value was similar to the change in the weight, and the Pearson correlation coefficient between the change in the CT value and weight was 0.8626. Furthermore, the structure and morphology of the scaffolds at different timepoints were analyzed by three-dimensional (3-D) reconstruction. This novel method of noninvasive dynamic monitoring of biodegradable polymers in vivo provides insight into choosing suitable biomaterials for tissue engineering and regenerative medicine.
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Affiliation(s)
- Xiangsheng Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Ai Ai
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Ziyou Yu
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Mingwu Deng
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Wei Li
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China.
| | - Yilin Cao
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China.
| | - Xiansong Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Tissue Engineering Center of China, 639 Zhizaoju Road, Shanghai, 200011, PR China.
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Fathi P, Capron G, Tripathi I, Misra S, Ostadhossein F, Selmic L, Rowitz B, Pan D. Computed tomography-guided additive manufacturing of Personalized Absorbable Gastrointestinal Stents for intestinal fistulae and perforations. Biomaterials 2019; 228:119542. [PMID: 31678842 DOI: 10.1016/j.biomaterials.2019.119542] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 10/05/2019] [Accepted: 10/10/2019] [Indexed: 12/12/2022]
Abstract
Small bowel perforations and obstructions are relatively frequent surgical emergencies, are potentially life-threatening, and have multiple etiologies. In general, treatment requires urgent surgical repair or resection and at times can lead to further complications. Stents may be used to help with healing intestinal perforations but use is limited as currently available stents are non-absorbable, are manufactured in a narrow size range, and/or are limited to usage in locations that are accessible for endoscopic removal post-healing. The use of 3D-printed bioresorbable polymeric stents will provide patients with a stent that can prevent leakage, is tailored specifically to their geometry, and will be usable within the small bowel, which is not amenable to endoscopic stent placement. This work focused on the rapid manufacturing of gastrointestinal stents composed of a polycaprolactone-polydioxanone (PCL-PDO) composite. Dynamic Mechanical Analysis (DMA) tests were conducted to separately analyze the effects of composition, the filament formation process, and physiological temperature on the PCL-PDO material properties. The proposed stent design was then modeled using computer-aided design, and Finite Element Analysis (FEA) was used to simulate the effects of physiologically relevant forces on stent integrity. The presence of hydrolysable ester bonds was confirmed using FT-IR spectroscopy. In vitro studies were used to evaluate the biocompatibility of the polymer composite. Further analyses were conducted through stent placement in ex vivo pig intestines. PCL-PDO stents were then 3D-printed and placed in vivo in a pig model.
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Affiliation(s)
- Parinaz Fathi
- Departments of Bioengineering, Materials Science and Engineering, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, United States
| | | | - Indu Tripathi
- Departments of Bioengineering, Materials Science and Engineering, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, United States
| | - Santosh Misra
- Departments of Bioengineering, Materials Science and Engineering, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, United States
| | - Fatemeh Ostadhossein
- Departments of Bioengineering, Materials Science and Engineering, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, United States
| | - Laura Selmic
- College of Veterinary Medicine, University of Illinois, Urbana, Champaign, IL, United States
| | - Blair Rowitz
- Carle Foundation Hospital, Urbana, IL, United States; Carle Illinois College of Medicine, University of Illinois, Urbana, Champaign, IL, United States
| | - Dipanjan Pan
- Departments of Bioengineering, Materials Science and Engineering, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States; Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, United States; Carle Illinois College of Medicine, University of Illinois, Urbana, Champaign, IL, United States.
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Biocompatibility and biodegradation properties of polycaprolactone/polydioxanone composite scaffolds prepared by blend or co-electrospinning. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519835569] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Electrospun polymer scaffolds are regarded as an ideal tissue engineering scaffold due to similar morphological properties with the native extracellular matrix. Among these, polycaprolactone is widely used to fabricate electrospun fibrous scaffolds due to its excellent biocompatibility, good mechanical properties, and ease of manufacture. However, its low biodegradation rate has a negative influence on its application in tissue engineering scaffold. To address this issue, this study prepared hybrid scaffolds composed of polycaprolactone and polydioxanone (a fast-degrading polyether-ester) via either the blend or co-electrospinning. Subsequently, the structural characteristics, mechanical strength, in vitro/vivo degradation, cellularization, and vascularization of two kinds of hybrid scaffolds were evaluated to decide which method is more suitable for producing tissue engineering scaffolds. The incorporation of polydioxanone increased the mechanical strength of both composite scaffolds. Moreover, co-electrospun scaffolds exhibited improved hydrophilicity compared to blend scaffolds. The results of in vitro and in vivo degradation studies showed that the degradation rate of both composite scaffolds was faster than that of neat polycaprolactone scaffolds due to the incorporated polydioxanone component. Especially in co-electrospun scaffolds, the fast degradation of polydioxanone fiber gave rise to larger pore size, thus leading to faster cellularization and better vascularization compared to blend scaffolds. Therefore, co-electrospinning was demonstrated to be superior to blend electrospinning for the preparation of composite scaffolds. Co-electrospun polycaprolactone–polydioxanone scaffolds may be promising candidates for tissue engineering.
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13
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Biodegradable sheath-core biphasic monofilament braided stent for bio-functional treatment of esophageal strictures. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Ideal scaffold design for total ear reconstruction using a three‐dimensional printing technique. J Biomed Mater Res B Appl Biomater 2018; 107:1295-1303. [DOI: 10.1002/jbm.b.34222] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/27/2018] [Accepted: 08/02/2018] [Indexed: 11/07/2022]
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15
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In Vitro Regeneration of Patient-specific Ear-shaped Cartilage and Its First Clinical Application for Auricular Reconstruction. EBioMedicine 2018. [PMID: 29396297 DOI: 10.1016/j.ebiom.2018.01.011.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Microtia is a congenital external ear malformation that can seriously influence the psychological and physiological well-being of affected children. The successful regeneration of human ear-shaped cartilage using a tissue engineering approach in a nude mouse represents a promising approach for auricular reconstruction. However, owing to technical issues in cell source, shape control, mechanical strength, biosafety, and long-term stability of the regenerated cartilage, human tissue engineered ear-shaped cartilage is yet to be applied clinically. Using expanded microtia chondrocytes, compound biodegradable scaffold, and in vitro culture technique, we engineered patient-specific ear-shaped cartilage in vitro. Moreover, the cartilage was used for auricle reconstruction of five microtia patients and achieved satisfactory aesthetical outcome with mature cartilage formation during 2.5years follow-up in the first conducted case. Different surgical procedures were also employed to find the optimal approach for handling tissue engineered grafts. In conclusion, the results represent a significant breakthrough in clinical translation of tissue engineered human ear-shaped cartilage given the established in vitro engineering technique and suitable surgical procedure. This study was registered in Chinese Clinical Trial Registry (ChiCTR-ICN-14005469).
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16
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Zhou G, Jiang H, Yin Z, Liu Y, Zhang Q, Zhang C, Pan B, Zhou J, Zhou X, Sun H, Li D, He A, Zhang Z, Zhang W, Liu W, Cao Y. In Vitro Regeneration of Patient-specific Ear-shaped Cartilage and Its First Clinical Application for Auricular Reconstruction. EBioMedicine 2018; 28:287-302. [PMID: 29396297 PMCID: PMC5835555 DOI: 10.1016/j.ebiom.2018.01.011] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 01/11/2018] [Accepted: 01/11/2018] [Indexed: 12/17/2022] Open
Abstract
Microtia is a congenital external ear malformation that can seriously influence the psychological and physiological well-being of affected children. The successful regeneration of human ear-shaped cartilage using a tissue engineering approach in a nude mouse represents a promising approach for auricular reconstruction. However, owing to technical issues in cell source, shape control, mechanical strength, biosafety, and long-term stability of the regenerated cartilage, human tissue engineered ear-shaped cartilage is yet to be applied clinically. Using expanded microtia chondrocytes, compound biodegradable scaffold, and in vitro culture technique, we engineered patient-specific ear-shaped cartilage in vitro. Moreover, the cartilage was used for auricle reconstruction of five microtia patients and achieved satisfactory aesthetical outcome with mature cartilage formation during 2.5 years follow-up in the first conducted case. Different surgical procedures were also employed to find the optimal approach for handling tissue engineered grafts. In conclusion, the results represent a significant breakthrough in clinical translation of tissue engineered human ear-shaped cartilage given the established in vitro engineering technique and suitable surgical procedure. This study was registered in Chinese Clinical Trial Registry (ChiCTR-ICN-14005469). Patient-specific ear-shaped cartilage was engineered in vitro using expanded MCs and compound biodegradable scaffold. The first microtia case treated with the tissue engineered ear-shaped cartilage was follow-up for 2.5 years. Other four cases with similar and different surgical procedures were also presented.
Microtia is a congenital external ear malformation that can seriously influence the psychological and physiological well-being of affected children. Using expanded microtia chondrocytes, compound biodegradable scaffold, and in vitro culture technique, we engineered patient-specific ear-shaped cartilage in vitro, and performed a pilot clinical trial of auricle reconstruction using the engineered ear cartilage on five patients. Satisfactory aesthetical outcome with mature cartilage formation was achieved with the longest follow-up of 2.5 years.
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Affiliation(s)
- Guangdong Zhou
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China; Research Institute of Plastic Surgery, Plastic Surgery Hospital, Wei Fang Medical College, Weifang, Shandong Province, PR China
| | - Haiyue Jiang
- Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Zongqi Yin
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Yu Liu
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Qingguo Zhang
- Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Chen Zhang
- Department of Plastic Surgery, Xin Hua Hospital, Dalian University, Dalian, Liaoning Province, PR China
| | - Bo Pan
- Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Jiayu Zhou
- Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Xu Zhou
- Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Hengyun Sun
- Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China
| | - Dan Li
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Aijuan He
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Zhiyong Zhang
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Wenjie Zhang
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Wei Liu
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China
| | - Yilin Cao
- Shanghai Tissue Engineering Research Key Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; National Tissue Engineering Center of China, Shanghai, PR China; Auricular Center, Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing, PR China.
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17
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Cho YS, Hong MW, Quan M, Kim SY, Lee SH, Lee SJ, Kim YY, Cho YS. Assessments for bone regeneration using the polycaprolactone SLUP (salt-leaching using powder) scaffold. J Biomed Mater Res A 2017; 105:3432-3444. [DOI: 10.1002/jbm.a.36196] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 07/18/2017] [Accepted: 08/10/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Yong Sang Cho
- Division of Mechanical and Automotive Engineering, College of Engineering; Wonkwang University, 460 Iksandae-ro; Iksan Jeonbuk 570-749 Republic of Korea
| | - Myoung Wha Hong
- Department of Orthopedics; Daejeon St. Mary's Hospital, Catholic University of Korea, 64, Daeheung-ro; Jung-gu Daejeon 301-723 Republic of Korea
| | - Meiling Quan
- Department of Orthopedics; Daejeon St. Mary's Hospital, Catholic University of Korea, 64, Daeheung-ro; Jung-gu Daejeon 301-723 Republic of Korea
| | - So-Youn Kim
- Hanbit System, Industrial Tools Circulating Center, 160, Daehwa-ro; Daedeok-gu Daejeon 306-754 Republic of Korea
| | - Se-Hwan Lee
- Division of Mechanical and Automotive Engineering, College of Engineering; Wonkwang University, 460 Iksandae-ro; Iksan Jeonbuk 570-749 Republic of Korea
| | - Seung-Jae Lee
- Division of Mechanical and Automotive Engineering, College of Engineering; Wonkwang University, 460 Iksandae-ro; Iksan Jeonbuk 570-749 Republic of Korea
| | - Young Yul Kim
- Department of Orthopedics; Daejeon St. Mary's Hospital, Catholic University of Korea, 64, Daeheung-ro; Jung-gu Daejeon 301-723 Republic of Korea
| | - Young-Sam Cho
- Division of Mechanical and Automotive Engineering, College of Engineering; Wonkwang University, 460 Iksandae-ro; Iksan Jeonbuk 570-749 Republic of Korea
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18
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Raeisdasteh Hokmabad V, Davaran S, Ramazani A, Salehi R. Design and fabrication of porous biodegradable scaffolds: a strategy for tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1797-1825. [PMID: 28707508 DOI: 10.1080/09205063.2017.1354674] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Current strategies of tissue engineering are focused on the reconstruction and regeneration of damaged or deformed tissues by grafting of cells with scaffolds and biomolecules. Recently, much interest is given to scaffolds which are based on mimic the extracellular matrix that have induced the formation of new tissues. To return functionality of the organ, the presence of a scaffold is essential as a matrix for cell colonization, migration, growth, differentiation and extracellular matrix deposition, until the tissues are totally restored or regenerated. A wide variety of approaches has been developed either in scaffold materials and production procedures or cell sources and cultivation techniques to regenerate the tissues/organs in tissue engineering applications. This study has been conducted to present an overview of the different scaffold fabrication techniques such as solvent casting and particulate leaching, electrospinning, emulsion freeze-drying, thermally induced phase separation, melt molding and rapid prototyping with their properties, limitations, theoretical principles and their prospective in tailoring appropriate micro-nanostructures for tissue regeneration applications. This review also includes discussion on recent works done in the field of tissue engineering.
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Affiliation(s)
- Vahideh Raeisdasteh Hokmabad
- a Department of Chemistry , University of Zanjan , Zanjan , Iran.,b Drug Applied Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Soodabeh Davaran
- b Drug Applied Research Center , Tabriz University of Medical Sciences , Tabriz , Iran.,c Stem Cell Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Ali Ramazani
- a Department of Chemistry , University of Zanjan , Zanjan , Iran
| | - Roya Salehi
- c Stem Cell Research Center , Tabriz University of Medical Sciences , Tabriz , Iran.,d Faculty of Advanced Medical Sciences, Department of Medical Nanotechnology , Tabriz University of Medical Sciences , Tabriz , Iran
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19
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A novel nano-hydroxyapatite — PMMA hybrid scaffolds adopted by conjugated thermal induced phase separation (TIPS) and wet-chemical approach: Analysis of its mechanical and biological properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:221-228. [DOI: 10.1016/j.msec.2016.12.133] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/04/2016] [Accepted: 12/21/2016] [Indexed: 12/27/2022]
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20
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G R, S B, Venkatesan B, Vellaichamy E. WITHDRAWN: A novel nano-hydroxyapatite - PMMA hybrid scaffolds adopted by conjugated thermal induced phase separation (TIPS) and wet-chemical approach: Analysis of its mechanical and biological properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:164-172. [PMID: 28183594 DOI: 10.1016/j.msec.2016.11.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/15/2016] [Accepted: 11/21/2016] [Indexed: 01/10/2023]
Abstract
The Publisher regrets that this article is an accidental duplication of an article that has already been published in Mater. Sci. Eng.: C, 73 (2017) 164–172, 10.1016/http://dx.doi.org/j.msec.2016.12.133. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Radha G
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy campus, Chennai 600025, India
| | - Balakumar S
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy campus, Chennai 600025, India.
| | - Balaji Venkatesan
- Department of Biochemistry, University of Madras, Guindy campus, Chennai 600025, India
| | - Elangovan Vellaichamy
- Department of Biochemistry, University of Madras, Guindy campus, Chennai 600025, India
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21
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Akbarzadeh R, Minton JA, Janney CS, Smith TA, James PF, Yousefi AM. Hierarchical polymeric scaffolds support the growth of MC3T3-E1 cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:116. [PMID: 25665851 DOI: 10.1007/s10856-015-5453-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 12/14/2014] [Indexed: 06/04/2023]
Abstract
Tissue engineering makes use of the principles of biology and engineering to sustain 3D cell growth and promote tissue repair and/or regeneration. In this study, macro/microporous scaffold architectures have been developed using a hybrid solid freeform fabrication/thermally induced phase separation (TIPS) technique. Poly(lactic-co-glycolic acid) (PLGA) dissolved in 1,4-dioxane was used to generate a microporous matrix by the TIPS method. The 3D-bioplotting technique was used to fabricate 3D macroporous constructs made of polyethylene glycol (PEG). Embedding the PEG constructs inside the PLGA solution prior to the TIPS process and subsequent extraction of PEG following solvent removal (1,4-dioaxane) resulted in a macro/microporous structure. These hierarchical scaffolds with a bimodal pore size distribution (<50 and >300 μm) contained orthogonally interconnected macro-channels generated by the extracted PEG. The diameter of the macro-channels was varied by tuning the dispensing parameters of the 3D bioplotter. The in vitro cell culture using murine MC3T3-E1 cell line for 21 days demonstrated that these scaffolds could provide a favorable environment to support cell adhesion and growth.
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Affiliation(s)
- Rosa Akbarzadeh
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E High Street, Oxford, OH, 45056, USA
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22
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Janik H, Marzec M. A review: fabrication of porous polyurethane scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 48:586-91. [PMID: 25579961 DOI: 10.1016/j.msec.2014.12.037] [Citation(s) in RCA: 230] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 12/05/2014] [Accepted: 12/06/2014] [Indexed: 02/02/2023]
Abstract
The aim of tissue engineering is the fabrication of three-dimensional scaffolds that can be used for the reconstruction and regeneration of damaged or deformed tissues and organs. A wide variety of techniques have been developed to create either fibrous or porous scaffolds from polymers, metals, composite materials and ceramics. However, the most promising materials are biodegradable polymers due to their comprehensive mechanical properties, ability to control the rate of degradation and similarities to natural tissue structures. Polyurethanes (PUs) are attractive candidates for scaffold fabrication, since they are biocompatible, and have excellent mechanical properties and mechanical flexibility. PU can be applied to various methods of porous scaffold fabrication, among which are solvent casting/particulate leaching, thermally induced phase separation, gas foaming, emulsion freeze-drying and melt moulding. Scaffold properties obtained by these techniques, including pore size, interconnectivity and total porosity, all depend on the thermal processing parameters, and the porogen agent and solvents used. In this review, various polyurethane systems for scaffolds are discussed, as well as methods of fabrication, including the latest developments, and their advantages and disadvantages.
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Affiliation(s)
- H Janik
- Department of Polymers Technology, Chemical Faculty, Gdansk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdansk, Poland.
| | - M Marzec
- Department of Polymers Technology, Chemical Faculty, Gdansk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdansk, Poland
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23
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Akbarzadeh R, Yousefi AM. Effects of processing parameters in thermally induced phase separation technique on porous architecture of scaffolds for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2014; 102:1304-15. [PMID: 24425207 DOI: 10.1002/jbm.b.33101] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 11/16/2013] [Accepted: 12/17/2013] [Indexed: 12/22/2022]
Abstract
Tissue engineering makes use of 3D scaffolds to sustain three-dimensional growth of cells and guide new tissue formation. To meet the multiple requirements for regeneration of biological tissues and organs, a wide range of scaffold fabrication techniques have been developed, aiming to produce porous constructs with the desired pore size range and pore morphology. Among different scaffold fabrication techniques, thermally induced phase separation (TIPS) method has been widely used in recent years because of its potential to produce highly porous scaffolds with interconnected pore morphology. The scaffold architecture can be closely controlled by adjusting the process parameters, including polymer type and concentration, solvent composition, quenching temperature and time, coarsening process, and incorporation of inorganic particles. The objective of this review is to provide information pertaining to the effect of these parameters on the architecture and properties of the scaffolds fabricated by the TIPS technique.
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Affiliation(s)
- Rosa Akbarzadeh
- Department of Chemical Paper and Biomedical Engineering, Miami University, Oxford, Ohio, 45056
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24
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Pereira RF, Bártolo PJ. Photocrosslinkable Materials for the Fabrication of Tissue-Engineered Constructs by Stereolithography. TISSUE ENGINEERING 2014. [DOI: 10.1007/978-94-007-7073-7_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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25
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Cho YS, Hong MW, Kim YY, Cho YS. Assessment of cell proliferation in salt-leaching using powder (SLUP) scaffolds with penetrated macro-pores. J Appl Polym Sci 2013. [DOI: 10.1002/app.40240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yong Sang Cho
- Division of Mechanical and Automotive Engineering; College of Engineering, Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
| | - Myoung Wha Hong
- Daejeon St. Mary's Hospital, Catholic University of Korea; Republic of Korea
| | - Young Yul Kim
- Daejeon St. Mary's Hospital, Catholic University of Korea; Republic of Korea
| | - Young-Sam Cho
- Division of Mechanical and Automotive Engineering; College of Engineering, Wonkwang University; Iksan Jeonbuk 570-749 Republic of Korea
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26
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Godoy P, Hewitt NJ, Albrecht U, Andersen ME, Ansari N, Bhattacharya S, Bode JG, Bolleyn J, Borner C, Böttger J, Braeuning A, Budinsky RA, Burkhardt B, Cameron NR, Camussi G, Cho CS, Choi YJ, Craig Rowlands J, Dahmen U, Damm G, Dirsch O, Donato MT, Dong J, Dooley S, Drasdo D, Eakins R, Ferreira KS, Fonsato V, Fraczek J, Gebhardt R, Gibson A, Glanemann M, Goldring CEP, Gómez-Lechón MJ, Groothuis GMM, Gustavsson L, Guyot C, Hallifax D, Hammad S, Hayward A, Häussinger D, Hellerbrand C, Hewitt P, Hoehme S, Holzhütter HG, Houston JB, Hrach J, Ito K, Jaeschke H, Keitel V, Kelm JM, Kevin Park B, Kordes C, Kullak-Ublick GA, LeCluyse EL, Lu P, Luebke-Wheeler J, Lutz A, Maltman DJ, Matz-Soja M, McMullen P, Merfort I, Messner S, Meyer C, Mwinyi J, Naisbitt DJ, Nussler AK, Olinga P, Pampaloni F, Pi J, Pluta L, Przyborski SA, Ramachandran A, Rogiers V, Rowe C, Schelcher C, Schmich K, Schwarz M, Singh B, Stelzer EHK, Stieger B, Stöber R, Sugiyama Y, Tetta C, Thasler WE, Vanhaecke T, Vinken M, Weiss TS, Widera A, Woods CG, Xu JJ, Yarborough KM, Hengstler JG. Recent advances in 2D and 3D in vitro systems using primary hepatocytes, alternative hepatocyte sources and non-parenchymal liver cells and their use in investigating mechanisms of hepatotoxicity, cell signaling and ADME. Arch Toxicol 2013; 87:1315-530. [PMID: 23974980 PMCID: PMC3753504 DOI: 10.1007/s00204-013-1078-5] [Citation(s) in RCA: 1062] [Impact Index Per Article: 96.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 12/15/2022]
Abstract
This review encompasses the most important advances in liver functions and hepatotoxicity and analyzes which mechanisms can be studied in vitro. In a complex architecture of nested, zonated lobules, the liver consists of approximately 80 % hepatocytes and 20 % non-parenchymal cells, the latter being involved in a secondary phase that may dramatically aggravate the initial damage. Hepatotoxicity, as well as hepatic metabolism, is controlled by a set of nuclear receptors (including PXR, CAR, HNF-4α, FXR, LXR, SHP, VDR and PPAR) and signaling pathways. When isolating liver cells, some pathways are activated, e.g., the RAS/MEK/ERK pathway, whereas others are silenced (e.g. HNF-4α), resulting in up- and downregulation of hundreds of genes. An understanding of these changes is crucial for a correct interpretation of in vitro data. The possibilities and limitations of the most useful liver in vitro systems are summarized, including three-dimensional culture techniques, co-cultures with non-parenchymal cells, hepatospheres, precision cut liver slices and the isolated perfused liver. Also discussed is how closely hepatoma, stem cell and iPS cell-derived hepatocyte-like-cells resemble real hepatocytes. Finally, a summary is given of the state of the art of liver in vitro and mathematical modeling systems that are currently used in the pharmaceutical industry with an emphasis on drug metabolism, prediction of clearance, drug interaction, transporter studies and hepatotoxicity. One key message is that despite our enthusiasm for in vitro systems, we must never lose sight of the in vivo situation. Although hepatocytes have been isolated for decades, the hunt for relevant alternative systems has only just begun.
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Affiliation(s)
- Patricio Godoy
- Leibniz Research Centre for Working Environment and Human Factors (IFADO), 44139 Dortmund, Germany
| | | | - Ute Albrecht
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Melvin E. Andersen
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Nariman Ansari
- Buchmann Institute for Molecular Life Sciences (BMLS), Goethe University Frankfurt, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Sudin Bhattacharya
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Johannes Georg Bode
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Jennifer Bolleyn
- Department of Toxicology, Centre for Pharmaceutical Research, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Christoph Borner
- Institute of Molecular Medicine and Cell Research, University of Freiburg, Freiburg, Germany
| | - Jan Böttger
- Institute of Biochemistry, Faculty of Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Albert Braeuning
- Department of Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Wilhelmstr. 56, 72074 Tübingen, Germany
| | - Robert A. Budinsky
- Toxicology and Environmental Research and Consulting, The Dow Chemical Company, Midland, MI USA
| | - Britta Burkhardt
- BG Trauma Center, Siegfried Weller Institut, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
| | - Neil R. Cameron
- Department of Chemistry, Durham University, Durham, DH1 3LE UK
| | - Giovanni Camussi
- Department of Medical Sciences, University of Torino, 10126 Turin, Italy
| | - Chong-Su Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921 Korea
| | - Yun-Jaie Choi
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921 Korea
| | - J. Craig Rowlands
- Toxicology and Environmental Research and Consulting, The Dow Chemical Company, Midland, MI USA
| | - Uta Dahmen
- Experimental Transplantation Surgery, Department of General Visceral, and Vascular Surgery, Friedrich-Schiller-University Jena, 07745 Jena, Germany
| | - Georg Damm
- Department of General-, Visceral- and Transplantation Surgery, Charité University Medicine Berlin, 13353 Berlin, Germany
| | - Olaf Dirsch
- Institute of Pathology, Friedrich-Schiller-University Jena, 07745 Jena, Germany
| | - María Teresa Donato
- Unidad de Hepatología Experimental, IIS Hospital La Fe Avda Campanar 21, 46009 Valencia, Spain
- CIBERehd, Fondo de Investigaciones Sanitarias, Barcelona, Spain
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | - Jian Dong
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Steven Dooley
- Department of Medicine II, Section Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Dirk Drasdo
- Interdisciplinary Center for Bioinformatics (IZBI), University of Leipzig, 04107 Leipzig, Germany
- INRIA (French National Institute for Research in Computer Science and Control), Domaine de Voluceau-Rocquencourt, B.P. 105, 78153 Le Chesnay Cedex, France
- UPMC University of Paris 06, CNRS UMR 7598, Laboratoire Jacques-Louis Lions, 4, pl. Jussieu, 75252 Paris cedex 05, France
| | - Rowena Eakins
- Department of Molecular and Clinical Pharmacology, Centre for Drug Safety Science, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Karine Sá Ferreira
- Institute of Molecular Medicine and Cell Research, University of Freiburg, Freiburg, Germany
- GRK 1104 From Cells to Organs, Molecular Mechanisms of Organogenesis, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Valentina Fonsato
- Department of Medical Sciences, University of Torino, 10126 Turin, Italy
| | - Joanna Fraczek
- Department of Toxicology, Centre for Pharmaceutical Research, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Rolf Gebhardt
- Institute of Biochemistry, Faculty of Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Andrew Gibson
- Department of Molecular and Clinical Pharmacology, Centre for Drug Safety Science, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Matthias Glanemann
- Department of General-, Visceral- and Transplantation Surgery, Charité University Medicine Berlin, 13353 Berlin, Germany
| | - Chris E. P. Goldring
- Department of Molecular and Clinical Pharmacology, Centre for Drug Safety Science, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - María José Gómez-Lechón
- Unidad de Hepatología Experimental, IIS Hospital La Fe Avda Campanar 21, 46009 Valencia, Spain
- CIBERehd, Fondo de Investigaciones Sanitarias, Barcelona, Spain
| | - Geny M. M. Groothuis
- Department of Pharmacy, Pharmacokinetics Toxicology and Targeting, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Lena Gustavsson
- Department of Laboratory Medicine (Malmö), Center for Molecular Pathology, Lund University, Jan Waldenströms gata 59, 205 02 Malmö, Sweden
| | - Christelle Guyot
- Department of Clinical Pharmacology and Toxicology, University Hospital, 8091 Zurich, Switzerland
| | - David Hallifax
- Centre for Applied Pharmacokinetic Research (CAPKR), School of Pharmacy and Pharmaceutical Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT UK
| | - Seddik Hammad
- Department of Forensic Medicine and Veterinary Toxicology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Adam Hayward
- Biological and Biomedical Sciences, Durham University, Durham, DH13LE UK
| | - Dieter Häussinger
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Claus Hellerbrand
- Department of Medicine I, University Hospital Regensburg, 93053 Regensburg, Germany
| | | | - Stefan Hoehme
- Interdisciplinary Center for Bioinformatics (IZBI), University of Leipzig, 04107 Leipzig, Germany
| | - Hermann-Georg Holzhütter
- Institut für Biochemie Abteilung Mathematische Systembiochemie, Universitätsmedizin Berlin (Charité), Charitéplatz 1, 10117 Berlin, Germany
| | - J. Brian Houston
- Centre for Applied Pharmacokinetic Research (CAPKR), School of Pharmacy and Pharmaceutical Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT UK
| | | | - Kiyomi Ito
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo, 202-8585 Japan
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160 USA
| | - Verena Keitel
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | | | - B. Kevin Park
- Department of Molecular and Clinical Pharmacology, Centre for Drug Safety Science, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Claus Kordes
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Gerd A. Kullak-Ublick
- Department of Clinical Pharmacology and Toxicology, University Hospital, 8091 Zurich, Switzerland
| | - Edward L. LeCluyse
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Peng Lu
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | | | - Anna Lutz
- Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Freiburg, Germany
| | - Daniel J. Maltman
- Reinnervate Limited, NETPark Incubator, Thomas Wright Way, Sedgefield, TS21 3FD UK
| | - Madlen Matz-Soja
- Institute of Biochemistry, Faculty of Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Patrick McMullen
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Irmgard Merfort
- Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Freiburg, Germany
| | | | - Christoph Meyer
- Department of Medicine II, Section Molecular Hepatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Jessica Mwinyi
- Department of Clinical Pharmacology and Toxicology, University Hospital, 8091 Zurich, Switzerland
| | - Dean J. Naisbitt
- Department of Molecular and Clinical Pharmacology, Centre for Drug Safety Science, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Andreas K. Nussler
- BG Trauma Center, Siegfried Weller Institut, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
| | - Peter Olinga
- Division of Pharmaceutical Technology and Biopharmacy, Department of Pharmacy, University of Groningen, 9713 AV Groningen, The Netherlands
| | - Francesco Pampaloni
- Buchmann Institute for Molecular Life Sciences (BMLS), Goethe University Frankfurt, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Jingbo Pi
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Linda Pluta
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | - Stefan A. Przyborski
- Reinnervate Limited, NETPark Incubator, Thomas Wright Way, Sedgefield, TS21 3FD UK
- Biological and Biomedical Sciences, Durham University, Durham, DH13LE UK
| | - Anup Ramachandran
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160 USA
| | - Vera Rogiers
- Department of Toxicology, Centre for Pharmaceutical Research, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Cliff Rowe
- Department of Molecular and Clinical Pharmacology, Centre for Drug Safety Science, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Celine Schelcher
- Department of Surgery, Liver Regeneration, Core Facility, Human in Vitro Models of the Liver, Ludwig Maximilians University of Munich, Munich, Germany
| | - Kathrin Schmich
- Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Freiburg, Germany
| | - Michael Schwarz
- Department of Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Wilhelmstr. 56, 72074 Tübingen, Germany
| | - Bijay Singh
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, 151-921 Korea
| | - Ernst H. K. Stelzer
- Buchmann Institute for Molecular Life Sciences (BMLS), Goethe University Frankfurt, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
| | - Bruno Stieger
- Department of Clinical Pharmacology and Toxicology, University Hospital, 8091 Zurich, Switzerland
| | - Regina Stöber
- Leibniz Research Centre for Working Environment and Human Factors (IFADO), 44139 Dortmund, Germany
| | - Yuichi Sugiyama
- Sugiyama Laboratory, RIKEN Innovation Center, RIKEN, Yokohama Biopharmaceutical R&D Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
| | - Ciro Tetta
- Fresenius Medical Care, Bad Homburg, Germany
| | - Wolfgang E. Thasler
- Department of Surgery, Ludwig-Maximilians-University of Munich Hospital Grosshadern, Munich, Germany
| | - Tamara Vanhaecke
- Department of Toxicology, Centre for Pharmaceutical Research, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Mathieu Vinken
- Department of Toxicology, Centre for Pharmaceutical Research, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Thomas S. Weiss
- Department of Pediatrics and Juvenile Medicine, University of Regensburg Hospital, Regensburg, Germany
| | - Agata Widera
- Leibniz Research Centre for Working Environment and Human Factors (IFADO), 44139 Dortmund, Germany
| | - Courtney G. Woods
- The Hamner Institutes for Health Sciences, Research Triangle Park, NC USA
| | | | | | - Jan G. Hengstler
- Leibniz Research Centre for Working Environment and Human Factors (IFADO), 44139 Dortmund, Germany
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Kim TH, Oh SH, Chun SY, Lee JH. Bone morphogenetic proteins-immobilized polydioxanone porous particles as an artificial bone graft. J Biomed Mater Res A 2013; 102:1264-74. [PMID: 23703875 DOI: 10.1002/jbm.a.34803] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 05/10/2013] [Indexed: 11/06/2022]
Abstract
Bone morphogenetic proteins (BMPs)-immobilized polydioxanone (PDO)/Pluronic F127 porous particles were prepared as a bone graft using a melt-molding particulate-leaching method, and the sequential binding of heparin and BMPs (BMP-2 and BMP-7, single or dual) onto the porous particles. The prepared PDO/Pluronic F127 porous particles gradually degraded with time, with ∼30% of the initial particle weight remaining after 16 weeks. The degradation rate of the PDO/Pluronic F127 porous particles may parallel the bone-healing rate. The BMPs were easily immobilized onto the pore surfaces of PDO/Pluronic F127 particles via heparin binding and were released in a sustained manner for up to 21 days, regardless of BMP type. The BMPs (single BMP-2 or dual BMP-2/BMP-7)-immobilized porous particles were effective for in vitro osteogenesis of bone marrow stem cells (BMSCs), as analyzed by alkaline phosphatase activity, calcium content, time polymerase chain reaction using specific markers for osteogenesis (Type I collagen, osteocalcin, osteopotin, and RunX2), and immunohistochemical staining. The BMPs (single BMP-2 or dual BMP-2/BMP-7)-immobilized porous particles were also effective in promoting new bone formation, as analyzed by the preliminary animal study using a full-thickness skull defect model of Sprague-Dawley rats (microcomputed tomography). The synergistic effect of dual BMPs on the osteogenesis of BMSCs and bone regeneration was not significant in our system. The BMP-2 or dual BMPs (BMP-2/BMP-7)-immobilized PDO/Pluronic F127 porous particles may be a promising candidate as a bone graft for the delayed and insufficient bone healing in clinical fields.
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Affiliation(s)
- Tae Ho Kim
- Department of Advanced Materials, Hannam University, 461-6 Jeonmin Dong, Yuseong Gu, Daejeon 305-811, Republic of Korea
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Goonoo N, Bhaw-Luximon A, Bowlin GL, Jhurry D. An assessment of biopolymer- and synthetic polymer-based scaffolds for bone and vascular tissue engineering. POLYM INT 2013. [DOI: 10.1002/pi.4474] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nowsheen Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building; University of Mauritius; Réduit Mauritius
| | - Archana Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building; University of Mauritius; Réduit Mauritius
| | - Gary L Bowlin
- Department of Biomedical Engineering, Virginia Commonwealth University; Richmond; Virginia USA
| | - Dhanjay Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building; University of Mauritius; Réduit Mauritius
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Kim SH, Lee JH, Hyun H, Ashitate Y, Park G, Robichaud K, Lunsford E, Lee SJ, Khang G, Choi HS. Near-infrared fluorescence imaging for noninvasive trafficking of scaffold degradation. Sci Rep 2013; 3:1198. [PMID: 23386968 PMCID: PMC3564022 DOI: 10.1038/srep01198] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 01/18/2013] [Indexed: 11/13/2022] Open
Abstract
Biodegradable scaffolds could revolutionize tissue engineering and regenerative medicine; however, in vivo matrix degradation and tissue ingrowth processes are not fully understood. Currently a large number of samples and animals are required to track biodegradation of implanted scaffolds, and such nonconsecutive single-time-point information from various batches result in inaccurate conclusions. To overcome this limitation, we developed functional biodegradable scaffolds by employing invisible near-infrared fluorescence and followed their degradation behaviors in vitro and in vivo. Using optical fluorescence imaging, the degradation could be quantified in real-time, while tissue ingrowth was tracked by measuring vascularization using magnetic resonance imaging in the same animal over a month. Moreover, we optimized the in vitro process of enzyme-based biodegradation to predict implanted scaffold behaviors in vivo, which was closely related to the site of inoculation. This combined multimodal imaging will benefit tissue engineers by saving time, reducing animal numbers, and offering more accurate conclusions.
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Affiliation(s)
- Soon Hee Kim
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
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Jiang W, Shi J, Li W, Sun K. Three dimensional melt-deposition of polycaprolactone/bio-derived hydroxyapatite composite into scaffold for bone repair. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:539-50. [DOI: 10.1080/09205063.2012.698894] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Wenbo Jiang
- a State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai , 200240 , China
- b Institute of Biomedical Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai , 200240 , China
| | - Jun Shi
- c Department of Oral and Maxillofacial Surgery , Shanghai Ninth People’s Hospital Affiliated Shanghai Jiao Tong University School of Medicine , Shanghai , 200011 , China
| | - Wei Li
- a State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai , 200240 , China
- b Institute of Biomedical Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai , 200240 , China
| | - Kang Sun
- a State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai , 200240 , China
- b Institute of Biomedical Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai , 200240 , China
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Qu Z, Ding J. Physical modification of the interior surfaces of PLGA porous scaffolds using sugar fibers as template. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:447-59. [DOI: 10.1080/09205063.2012.690285] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Zehua Qu
- a State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Laboratory of Advanced Materials, Fudan University , Shanghai , 200433 , China
| | - Jiandong Ding
- a State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Laboratory of Advanced Materials, Fudan University , Shanghai , 200433 , China
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Petrochenko P, Narayan RJ. Novel approaches to bone grafting: porosity, bone morphogenetic proteins, stem cells, and the periosteum. J Long Term Eff Med Implants 2011; 20:303-15. [PMID: 21488823 DOI: 10.1615/jlongtermeffmedimplants.v20.i4.50] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The disadvantages involving the use of a patient's own bone as graft material have led surgeons to search for alternative materials. In this review, several characteristics of a successful bone graft material are discussed. In addition, novel synthetic materials and natural bone graft materials are being considered. Various factors can determine the success of a bone graft substitute. For example, design considerations such as porosity, pore shape, and interconnection play significant roles in determining graft performance. The effective delivery of bone morphogenetic proteins and the ability to restore vascularization also play significant roles in determining the success of a bone graft material. Among current approaches, shorter bone morphogenetic protein sequences, more efficient delivery methods, and periosteal graft supplements have shown significant promise for use in autograft substitutes or autograft extenders.
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Affiliation(s)
- Peter Petrochenko
- Joint Department of Biomedical Engineering, University of North Carolina, Raleigh, NC, USA.
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