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Love SA, Gultian KA, Jalloh US, Stevens A, Kim TWB, Vega SL. Mesenchymal stem cells enhance targeted bone growth from injectable hydrogels with BMP-2 peptides. J Orthop Res 2024. [PMID: 38323639 DOI: 10.1002/jor.25798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/08/2024] [Accepted: 01/20/2024] [Indexed: 02/08/2024]
Abstract
Osteoporosis is the most common chronic metabolic bone disease, and the prevalence of osteoporotic fractures is rapidly increasing with the aging population. While bisphosphonates can reduce bone loss and risk of fracture, these drugs are systemic, rely on long-term use, and patient compliance is low. Recombinant human bone morphogenetic protein-2 (BMP-2) is an FDA-approved protein that can offer a more targeted therapeutic than systemic treatments. DWIVA is a peptide sequence corresponding to the wrist epitope of BMP-2, and DWIVA-functionalized hydrogels feature osteoinductive propertiesin vitro and in vivo. This study reports that self-forming DWIVA-functionalized hydrogels injected into the intramedullary canal of rat femurs induce a local increase in trabecular bone in as little as 2 weeks. Increases in bone volume, trabecular thickness, and trabeculae count from DWIVA-laden hydrogels persist for at least 4 weeks, and the inclusion of mesenchymal stem cells (MSCs) significantly enhances the development of mineralized bone. Histological analysis of decalcified femurs also shows that hydrogel injections containing DWIVA peptide and MSCs stimulate unmineralized bone tissue formation and induce an increased count of osteoblasts and osteoclasts at the injection site after 4 weeks. Overall, the MSC-laden DWIVA peptide-functionalized hydrogels presented rapidly induce targeted bone formation and have the potential to form nascent bone within bones in jeopardy of an osteoporotic fracture such as the femur.
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Affiliation(s)
- Stacy A Love
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey, USA
- Department of Orthopaedic Surgery, Cooper University Health Care, Camden, New Jersey, USA
| | - Kirstene A Gultian
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey, USA
| | - Umu S Jalloh
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey, USA
| | - Anna Stevens
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey, USA
- Department of Surgery, Cooper Medical School of Rowan University, Camden, New Jersey, USA
| | - Tae Won B Kim
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey, USA
- Department of Orthopaedic Surgery, Cooper University Health Care, Camden, New Jersey, USA
- Department of Orthopaedic Surgery, Cooper Medical School of Rowan University, Camden, New Jersey, USA
| | - Sebastián L Vega
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey, USA
- Department of Orthopaedic Surgery, Cooper Medical School of Rowan University, Camden, New Jersey, USA
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Okulski J, Kozakiewicz M, Krasowski M, Zieliński R, Szymor P. Optimal Plate Choice for High-Neck Mandibular Condyle Fracture: A Mechanistic Analysis of 16 Options. J Clin Med 2024; 13:905. [PMID: 38337599 PMCID: PMC10856367 DOI: 10.3390/jcm13030905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
(1) Background: Mandibular fractures are common, with the condylar process being a frequent site of injury, accounting for 25-45% of cases. This research aims to assess the mechanical suitability of various plates for high-neck condyle fractures. (2) Methods: Polyurethane models mimicking high-neck condyle fractures were utilized in this study. Sixteen distinct plate designs, constructed from titanium sheets, were tested. The figures underwent force assessments on a durability testing apparatus, and the relationship between used force and fracture movement was documented. (3) Results: For high-neck breaking, the two straight plates emerged as the most effective, aligning with established osteosynthesis standards. The second-best plate exhibited nearly half the strength of the gold standard. (4) Conclusions: In response to the aim of this study, considering the mechanical aspects, the double plain plate stands out as the optimal choice for osteosynthesis in cases of high-neck fractures of the mandibular condylar process. In addition, the authors propose the Mechanical Excellence Factor (MEF) as a superior metric for appraising a plate's mechanical force, surpassing the conventional Plate Design Factor (PDF).
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Affiliation(s)
- Jakub Okulski
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
| | - Marcin Kozakiewicz
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
| | - Michał Krasowski
- Material Science Laboratory, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland;
| | - Rafał Zieliński
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
| | - Piotr Szymor
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
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Lin J, Suo J, Bao B, Wei H, Gao T, Zhu H, Zheng X. Efficacy of EDTA-NS irrigation in eradicating Staphylococcus aureus biofilm-associated infection. Bone Joint Res 2024; 13:40-51. [PMID: 38198810 PMCID: PMC10781521 DOI: 10.1302/2046-3758.131.bjr-2023-0141.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2024] Open
Abstract
Aims To investigate the efficacy of ethylenediaminetetraacetic acid-normal saline (EDTA-NS) in dispersing biofilms and reducing bacterial infections. Methods EDTA-NS solutions were irrigated at different durations (1, 5, 10, and 30 minutes) and concentrations (1, 2, 5, 10, and 50 mM) to disrupt Staphylococcus aureus biofilms on Matrigel-coated glass and two materials widely used in orthopaedic implants (Ti-6Al-4V and highly cross-linked polyethylene (HXLPE)). To assess the efficacy of biofilm dispersion, crystal violet staining biofilm assay and colony counting after sonification and culturing were performed. The results were further confirmed and visualized by confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). We then investigated the efficacies of EDTA-NS irrigation in vivo in rat and pig models of biofilm-associated infection. Results When 10 mM or higher EDTA-NS concentrations were used for ten minutes, over 99% of S. aureus biofilm formed on all three types of materials was eradicated in terms of absorbance measured at 595 nm and colony-forming units (CFUs) after culturing. Consistently, SEM and CSLM scanning demonstrated that less adherence of S. aureus could be observed on all three types of materials after 10 mM EDTA-NS irrigation for ten minutes. In the rat model, compared with NS irrigation combined with rifampin (Ti-6Al-4V wire-implanted rats: 60% bacteria survived; HXLPE particle-implanted rats: 63.3% bacteria survived), EDTA-NS irrigation combined with rifampin produced the highest removal rate (Ti-6Al-4V wire-implanted rats: 3.33% bacteria survived; HXLPE particle-implanted rats: 6.67% bacteria survived). In the pig model, compared with NS irrigation combined with rifampin (Ti-6Al-4V plates: 75% bacteria survived; HXLPE bearings: 87.5% bacteria survived), we observed a similar level of biofilm disruption on Ti-6Al-4V plates (25% bacteria survived) and HXLPE bearings (37.5% bacteria survived) after EDTA-NS irrigation combined with rifampin. The in vivo study revealed that the biomass of S. aureus biofilm was significantly reduced when treated with rifampin following irrigation and debridement, as indicated by both the biofilm bacterial burden and crystal violet staining. EDTA-NS irrigation (10 mM/10 min) combined with rifampin effectively removes S. aureus biofilm-associated infections both in vitro and in vivo. Conclusion EDTA-NS irrigation with or without antibiotics is effective in eradicating S. aureus biofilm-associated infection both ex and in vivo.
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Affiliation(s)
- Junqing Lin
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
| | - Jinlong Suo
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
| | - Bingbo Bao
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
| | - Haifeng Wei
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
| | - Tao Gao
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
| | - Hongyi Zhu
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
| | - Xianyou Zheng
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Orthopaedics, Shanghai, China
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Okulski J, Kozakiewicz M, Krasowski M, Zieliński R, Wach T. Which of the 37 Plates Is the Most Mechanically Appropriate for a Low-Neck Fracture of the Mandibular Condyle? A Strength Testing. J Clin Med 2023; 12:6705. [PMID: 37959171 PMCID: PMC10649925 DOI: 10.3390/jcm12216705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/16/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
(1) Background: The mandible is the most frequently injured component of the facial skeleton, with 25-45% of mandibular fractures involving the condylar process. This study aims to mechanically compare which plates are most suitable for use in low-neck fractures of the condyle. (2) Methods: Polyurethane mandibular models with simulated low-neck fractures were tested using 37 distinct plate designs. These plates were fabricated from 1 mm thick, grade 23 titanium sheets. The models were then subjected to force tests on a strength machine, and the correlation between applied force and fracture displacement was recorded. (3) Results: For low-neck fractures, XCP side-dedicated 3+5 and ACP-T plates demonstrated strength comparable to that of two straight plates, the current gold standard in osteosynthesis. (4) Conclusions: The Mechanical Excellence Factor (MEF) introduced by the authors provides a more accurate metric for theoretically predicting a plate's mechanical strength compared to the Plate Design Factor (PDF). Eight plate characteristics were utilized to calculate the MEF. Employing the MEF allows for rapid, preliminary validation before undertaking strength tests. Furthermore, the findings of this study can guide the selection of the most durable plate designs for subsequent fatigue testing.
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Affiliation(s)
- Jakub Okulski
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
| | - Marcin Kozakiewicz
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
| | - Michał Krasowski
- Material Science Laboratory, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland;
| | - Rafał Zieliński
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
| | - Tomasz Wach
- Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland; (J.O.); (M.K.); (R.Z.)
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5
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Tsikopoulos K, Drago L, Meroni G, Kitridis D, Chalidis B, Papageorgiou F, Papaioannidou P. In vitro laboratory infection research in orthopaedics: Why, when, and how. World J Orthop 2023; 14:598-603. [PMID: 37662661 PMCID: PMC10473912 DOI: 10.5312/wjo.v14.i8.598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/07/2023] [Accepted: 07/11/2023] [Indexed: 08/17/2023] Open
Abstract
The musculoskeletal system involves multiple tissues which are constantly exposed to being exposed to various biological and mechanical stimuli. As such, isolating and studying a particular system from a complex human clinical environment is not always a realistic expectation. On top of that, recruitment limitations, in addition to the nature of orthopaedic interventions and their associated cost, sometimes preclude consideration of human trials to answer a clinical question. Therefore, in this mini review, we sought to rationalize the rapid evolution of biomedical research at a basic scientific level and explain why the perception of orthopaedic conditions has fundamentally changed over the last decades. In more detail, we highlight that the number of orthopaedic in vitro publications has soared since 1990. Last but not least, we elaborated on the minimum requirements for conducting a scientifically sound infection-related laboratory experiment to offer valuable information to clinical practitioners. We also explained the rationale behind implementing molecular biology techniques, ex vivo experiments, and artificial intelligence in this type of laboratory research.
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Affiliation(s)
- Konstantinos Tsikopoulos
- 1st Department of Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Lorenzo Drago
- Department of Biomedical Sciences for Health, School of Medicine, University of Milan, Milan 20133, Italy
| | - Gabriele Meroni
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan 20133, Italy
| | - Dimitrios Kitridis
- 1st Department of Orthopaedic, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 57010, Greece
| | - Byron Chalidis
- 1st Department of Orthopaedic, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 57010, Greece
| | - Fotios Papageorgiou
- Department of Orthopaedic Surgery, 404 General Army Hospital, Larisa 41222, Greece
| | - Paraskevi Papaioannidou
- 1st Department of Pharmacology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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Arteaga A, Biguetti CC, Lakkasetter Chandrashekar B, Mora J, Qureshi A, Rodrigues DC. Biological Effects of New Titanium Surface Coatings Based on Ionic Liquids and HMGB1: A Cellular and Molecular Characterization in Lewis Rats. ACS Biomater Sci Eng 2023; 9:4709-4719. [PMID: 37418317 DOI: 10.1021/acsbiomaterials.3c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
High Mobility Group Box 1 (HMGB1) is a redox-sensitive molecule that plays dual roles in tissue healing and inflammation. We previously demonstrated that HMGB1 is stable when anchored by a well-characterized imidazolium-based ionic liquid (IonL), which serves as a delivery vehicle for exogenous HMGB1 to the site of injury and prevents denaturation from surface adherence. However, HMGB1 exists in different isoforms [fully reduced HMGB1 (FR), a recombinant version of FR resistant to oxidation (3S), disulfide HMGB1 (DS), and inactive sulfonyl HMGB1(SO)] that have distinct biological functions in health and disease. Thus, the goal of this study was to evaluate the effects of different recombinant HMGB1 isoforms on the host response using a rat subcutaneous implantation model. A total of 12 male Lewis rats (12-15 weeks) were implanted with titanium discs containing different treatments (n = 3/time point; Ti, Ti-IonL, Ti-IonL-DS, Ti-IonL-FR, and Ti-IonL-3S) and assessed at 2 and 14 days. Histological (H&E and Goldner trichrome staining), immunohistochemistry, and molecular analyses (qPCR) of surrounding implant tissues were employed for analysis of inflammatory cells, HMGB1 receptors, and healing markers. Ti-IonL-DS samples resulted in the thickest capsule formation, increased pro-inflammatory, and decreased anti-inflammatory cells, while Ti-IonL-3S samples demonstrated suitable tissue healing similar to uncoated Ti discs, as well as an upregulation of anti-inflammatory cells at 14 days compared to all other treatments. Thus, results from this study demonstrated that Ti-IonL-3S are safe alternatives for Ti biomaterials. Future studies are necessary to investigate the healing potential of Ti-IonL-3S in osseointegration scenarios.
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Affiliation(s)
- Alexandra Arteaga
- Department of Bioengineering, The University of Texas at Dallas, Richardson 75080-3021, Texas, United States
| | - Claudia Cristina Biguetti
- Department of Surgery and Biomechanics, School of Podiatric Medicine, The University of Texas Rio Grande Valley, Harlingen 78539, Texas, United States
| | | | - Jimena Mora
- Department of Bioengineering, The University of Texas at Dallas, Richardson 75080-3021, Texas, United States
| | - Adeena Qureshi
- Department of Bioengineering, The University of Texas at Dallas, Richardson 75080-3021, Texas, United States
| | - Danieli C Rodrigues
- Department of Bioengineering, The University of Texas at Dallas, Richardson 75080-3021, Texas, United States
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7
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Dao A, O'Donohue AK, Vasiljevski E, Bobyn J, Little D, Schindeler A. Murine models of orthopedic infection featuring Staphylococcus aureus biofilm. J Bone Jt Infect 2023; 8:81-89. [PMID: 37123502 PMCID: PMC10134754 DOI: 10.5194/jbji-8-81-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 03/04/2023] [Indexed: 05/02/2023] Open
Abstract
Introduction: Osteomyelitis remains a major clinical challenge. Many published rodent fracture infection models are costly compared with murine models for rapid screening and proof-of-concept studies. We aimed to develop a dependable and cost-effective murine bone infection model that mimics bacterial bone infections associated with biofilm and metal implants. Methods: Tibial drilled hole (TDH) and needle insertion surgery (NIS) infection models were compared in C57BL/6 mice (female, N = 150 ). Metal pins were inserted selectively into the medullary canal adjacent to the defect sites on the metaphysis. Free Staphylococcus aureus (ATCC 12600) or biofilm suspension (ATCC 25923) was locally inoculated. Animals were monitored for physiological or radiographic evidence of infection without prophylactic antibiotics for up to 14 d. At the end point, bone swabs, soft-tissue biopsies, and metal pins were taken for cultures. X-ray and micro-CT scans were performed along with histology analysis. Results: TDH and NIS both achieved a 100 % infection rate in tibiae when a metal implant was present with injection of free bacteria. In the absence of an implant, inoculation with a bacterial biofilm still induced a 40 %-50 % infection rate. In contrast, freely suspended bacteria and no implant consistently showed lower or negligible infection rates. Micro-CT analysis confirmed that biofilm infection caused local bone loss even without a metal implant as a nidus. Although a metal surface permissive for biofilm formation is impermeable to create progressive bone infections in animal models, the metal implant can be dismissed if a bacterial biofilm is used. Conclusion: These models have a high potential utility for modeling surgery-related osteomyelitis, with NIS being simpler to perform than TDH.
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Affiliation(s)
- Aiken Dao
- Orthopaedic Research and Biotechnology Unit, the Children's Hospital at
Westmead, Westmead, NSW, Australia
- The Children's Hospital at Westmead Clinical School, Faculty of Medicine
and Health, University of Sydney, Sydney, NSW, Australia
- Bioengineering & Molecular Medicine Laboratory, the Westmead Institute
for Medical Research, Westmead, NSW, Australia
| | - Alexandra K. O'Donohue
- Orthopaedic Research and Biotechnology Unit, the Children's Hospital at
Westmead, Westmead, NSW, Australia
- The Children's Hospital at Westmead Clinical School, Faculty of Medicine
and Health, University of Sydney, Sydney, NSW, Australia
- Bioengineering & Molecular Medicine Laboratory, the Westmead Institute
for Medical Research, Westmead, NSW, Australia
| | - Emily R. Vasiljevski
- Orthopaedic Research and Biotechnology Unit, the Children's Hospital at
Westmead, Westmead, NSW, Australia
- The Children's Hospital at Westmead Clinical School, Faculty of Medicine
and Health, University of Sydney, Sydney, NSW, Australia
| | - Justin D. Bobyn
- Orthopaedic Research and Biotechnology Unit, the Children's Hospital at
Westmead, Westmead, NSW, Australia
- The Children's Hospital at Westmead Clinical School, Faculty of Medicine
and Health, University of Sydney, Sydney, NSW, Australia
| | - David G. Little
- Orthopaedic Research and Biotechnology Unit, the Children's Hospital at
Westmead, Westmead, NSW, Australia
- The Children's Hospital at Westmead Clinical School, Faculty of Medicine
and Health, University of Sydney, Sydney, NSW, Australia
| | - Aaron Schindeler
- Orthopaedic Research and Biotechnology Unit, the Children's Hospital at
Westmead, Westmead, NSW, Australia
- The Children's Hospital at Westmead Clinical School, Faculty of Medicine
and Health, University of Sydney, Sydney, NSW, Australia
- Bioengineering & Molecular Medicine Laboratory, the Westmead Institute
for Medical Research, Westmead, NSW, Australia
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Iafrate L, Benedetti MC, Donsante S, Rosa A, Corsi A, Oreffo ROC, Riminucci M, Ruocco G, Scognamiglio C, Cidonio G. Modelling skeletal pain harnessing tissue engineering. IN VITRO MODELS 2022; 1:289-307. [PMID: 36567849 PMCID: PMC9766883 DOI: 10.1007/s44164-022-00028-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 12/27/2022]
Abstract
Bone pain typically occurs immediately following skeletal damage with mechanical distortion or rupture of nociceptive fibres. The pain mechanism is also associated with chronic pain conditions where the healing process is impaired. Any load impacting on the area of the fractured bone will stimulate the nociceptive response, necessitating rapid clinical intervention to relieve pain associated with the bone damage and appropriate mitigation of any processes involved with the loss of bone mass, muscle, and mobility and to prevent death. The following review has examined the mechanisms of pain associated with trauma or cancer-related skeletal damage focusing on new approaches for the development of innovative therapeutic interventions. In particular, the review highlights tissue engineering approaches that offer considerable promise in the application of functional biomimetic fabrication of bone and nerve tissues. The strategic combination of bone and nerve tissue engineered models provides significant potential to develop a new class of in vitro platforms, capable of replacing in vivo models and testing the safety and efficacy of novel drug treatments aimed at the resolution of bone-associated pain. To date, the field of bone pain research has centred on animal models, with a paucity of data correlating to the human physiological response. This review explores the evident gap in pain drug development research and suggests a step change in approach to harness tissue engineering technologies to recapitulate the complex pathophysiological environment of the damaged bone tissue enabling evaluation of the associated pain-mimicking mechanism with significant therapeutic potential therein for improved patient quality of life. Graphical abstract Rationale underlying novel drug testing platform development. Pain detected by the central nervous system and following bone fracture cannot be treated or exclusively alleviated using standardised methods. The pain mechanism and specificity/efficacy of pain reduction drugs remain poorly understood. In vivo and ex vivo models are not yet able to recapitulate the various pain events associated with skeletal damage. In vitro models are currently limited by their inability to fully mimic the complex physiological mechanisms at play between nervous and skeletal tissue and any disruption in pathological states. Robust innovative tissue engineering models are needed to better understand pain events and to investigate therapeutic regimes.
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Affiliation(s)
- Lucia Iafrate
- Center for Life Nano- & Neuro-Science (CLN2S), Istituto Italiano di Tecnologia, Rome, Italy
| | - Maria Cristina Benedetti
- Center for Life Nano- & Neuro-Science (CLN2S), Istituto Italiano di Tecnologia, Rome, Italy
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Samantha Donsante
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Alessandro Rosa
- Center for Life Nano- & Neuro-Science (CLN2S), Istituto Italiano di Tecnologia, Rome, Italy
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Rome, Italy
| | - Alessandro Corsi
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Richard O. C. Oreffo
- Bone and Joint Research Group, Stem Cells and Regeneration, Institute of Developmental Sciences, Centre for Human Development, University of Southampton, Southampton, UK
| | - Mara Riminucci
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Giancarlo Ruocco
- Center for Life Nano- & Neuro-Science (CLN2S), Istituto Italiano di Tecnologia, Rome, Italy
| | - Chiara Scognamiglio
- Center for Life Nano- & Neuro-Science (CLN2S), Istituto Italiano di Tecnologia, Rome, Italy
| | - Gianluca Cidonio
- Center for Life Nano- & Neuro-Science (CLN2S), Istituto Italiano di Tecnologia, Rome, Italy
- Bone and Joint Research Group, Stem Cells and Regeneration, Institute of Developmental Sciences, Centre for Human Development, University of Southampton, Southampton, UK
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Wang Y, Zhang S, Yang H, Cao Y, Yu D, Zhao Y, Cao Y. MicroRNA-196a-5p overexpression in Wharton's jelly umbilical cord stem cells promotes their osteogenic differentiation and new bone formation in bone defects in the rat calvarium. Cell Tissue Res 2022; 390:245-260. [PMID: 35925405 DOI: 10.1007/s00441-022-03673-2] [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: 01/25/2022] [Accepted: 07/19/2022] [Indexed: 11/02/2022]
Abstract
The peri-tooth root alveolar loss often does not have sufficient space for repair material transplantation and plasticity. Mesenchymal stem cell (MSC) sheets have an advantage in providing more extracellular matrix (ECM) and may prove to be a new therapeutic consideration for this bone defect repair. The identification of key regulators that stimulate MSCs' osteogenic potential and sheet-derived ECM deposition is the key to promoting its application. In this study, we found that inhibition or overexpression of miR-196a-5p led to a decline or enhancement, respectively, in the alkaline phosphatase (ALP) activity, mineralization, and the levels of osteogenic markers, Osteocalcin (OCN), Dentin Matrix Protein 1 (DMP1), Bone Sialoprotein (BSP), and Dentin Sialophosphoprotein (DSPP) of Wharton's jelly of umbilical cord stem cells (WJCMSCs) in vitro. Moreover, the 5,6-Carboxyfluorescein Diacetate Succinimidyl Ester (CFSE) analysis revealed inhibition of the WJCMSCs' proliferative ability upon miR-196a-5p overexpression. Characterization of the sheet formation by picrosirius red and Masson staining indicated that miR-196a-5p overexpression significantly promoted the collagen content in whole WJCMSC sheet-derived ECM. Furthermore, micro-CT and histopathology results indicated that the miR-196a-5p-overexpressed WJCMSC sheets significantly promoted new bone regeneration and rat calvarial bone defect closure 12 weeks following transplantation. The mRNA microarray analysis of miR-196a-5p-overexpressed WJCMSCs revealed 959 differentially expressed genes (DEGs) (34 upregulated and 925 downregulated). Moreover, 241 genes targeted by miR-196a-5p were predicted by using miRNA function websites of which only 19 predicted genes were consistent with the microarray revealed DEGs. Hence, one unrevealed downregulated DEG Serpin Family B Member 2 (SERPINB2) was investigated. And the deletion of SERPINB2 enhanced the ALP activity and mineralization of WJCMSCs in vitro. In conclusion, our study found that miR-196a-5p, as a key regulator, could repress the proliferation tendency, while stimulating osteogenic ability and WJCMSC sheet-derived ECM deposition, thus promoting new bone formation and rat calvarial bone defect closure. Furthermore, SERPINB2 is a key downstream gene involved in the miR-196a-5p-promoted WJCMSC osteogenesis.
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Affiliation(s)
- Yantong Wang
- Department of General Dentistry, Capital Medical University School of Stomatology, Beijing, 100050, China.,Laboratory of Molecular Signaling and Stem Cells TherapyKey Laboratory of Tooth Regeneration and Function ReconstructionDongcheng District, Capital Medical University School of Stomatology, 4 Tiantanxili, BeijingBeijing, 100050, China
| | - Simin Zhang
- Department of General Dentistry, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells TherapyKey Laboratory of Tooth Regeneration and Function ReconstructionDongcheng District, Capital Medical University School of Stomatology, 4 Tiantanxili, BeijingBeijing, 100050, China
| | - Yangyang Cao
- Laboratory of Molecular Signaling and Stem Cells TherapyKey Laboratory of Tooth Regeneration and Function ReconstructionDongcheng District, Capital Medical University School of Stomatology, 4 Tiantanxili, BeijingBeijing, 100050, China
| | - Dianqin Yu
- Department of General Dentistry, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Yingchu Zhao
- Department of General Dentistry, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Yu Cao
- Department of General Dentistry, Capital Medical University School of Stomatology, Beijing, 100050, China. .,Laboratory of Molecular Signaling and Stem Cells TherapyKey Laboratory of Tooth Regeneration and Function ReconstructionDongcheng District, Capital Medical University School of Stomatology, 4 Tiantanxili, BeijingBeijing, 100050, China.
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10
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Radulescu A, White FA, Chenu C. What Did We Learn About Fracture Pain from Animal Models? J Pain Res 2022; 15:2845-2856. [PMID: 36124034 PMCID: PMC9482434 DOI: 10.2147/jpr.s361826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 07/01/2022] [Indexed: 11/23/2022] Open
Abstract
Progress in bone fracture repair research has been made possible due to the development of reproducible models of fracture in rodents with more clinically relevant fracture fixation, where there is considerably better assessment of the factors that affect fracture healing and/or novel therapeutics. However, chronic or persistent pain is one of the worst, longest-lasting and most difficult symptoms to manage after fracture repair, and an ongoing challenge remains for animal welfare as limited information exists regarding pain scoring and management in these rodent fracture models. This failure of adequate pre-clinical pain assessment following osteotomy in the rodent population may not only subject the animal to severe pain states but may also affect the outcome of the bone healing study. Animal models to study pain were also mainly developed in rodents, and there is increasing validation of fracture and pain models to quantitatively evaluate fracture pain and to study the factors that generate and maintain fracture pain and develop new therapies for treating fracture pain. This review aims to discuss the different animal models for fracture pain research and characterize what can be learned from using animal models of fracture regarding behavioral pain states and new molecular targets for future management of these behaviors.
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Affiliation(s)
- Andreea Radulescu
- Royal Veterinary College, Department of Comparative Biomedical Sciences, London, NW1 OTU, UK
| | - Fletcher A White
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
- Richard L. Roudebush Veterans Medical Center, Indianapolis, IN, USA
| | - Chantal Chenu
- Royal Veterinary College, Department of Comparative Biomedical Sciences, London, NW1 OTU, UK
- Correspondence: Chantal Chenu, Royal Veterinary College, Department of Comparative Biological Sciences, Royal College Street, London, NW1 0TU, UK, Tel +44 207 468 5045, Email
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11
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Yamaguchi JT, Weiner JA, Minardi S, Greene AC, Ellenbogen DJ, Hallman MJ, Shah VP, Weisz KM, Jeong S, Nandurkar T, Yun C, Hsu WK, Hsu EL. Characterizing the host response to rhPDGF-BB in a rat spinal arthrodesis model. JOR Spine 2021; 4:e1173. [PMID: 35005440 PMCID: PMC8717117 DOI: 10.1002/jsp2.1173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 09/09/2021] [Accepted: 09/16/2021] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Due to the constraints surrounding autograft bone, surgeons have turned to osteoinductive agents to augment spinal fusion. Reports of complications and questionable efficacy slowed the adoption of these alternatives. Recombinant human platelet-derived growth factor B homodimer (rhPDGF-BB) has been Food and Drug Administration (FDA)-approved (Augment) to promote fusion in other areas of orthopedics, but its characterization in spine fusion has not yet been tested. The purpose of this study is to characterize the host response to PDGF-BB in vivo. METHODS Eighty female Fischer rats underwent L4-5 posterolateral fusion using one of four implant types: (a) iliac crest syngeneic allograft harvested from syngeneic donors, (b) β-TCP/bovine collagen matrix (β-TCP/Col) with sodium acetate buffer, (c) β-TCP/Col with 0.3 mg/mL "low dose," or (d) β-TCP/Col with 3.0 mg/mL "high dose" of rhPDGF-BB. Animals underwent magnetic resonance imaging (MRI) and serum cytokine quantification at 4, 7, 10, and 21 days, postoperatively. Tissues were processed for immunofluorescence staining for Ki67 and von Willebrand factor (vWF) to assess neovascularization. RESULTS MRI demonstrated no differences in fluid accumulation among the four treatment groups at any of the time points. Serum cytokine analysis showed no clinically significant differences between treatment groups in 20 of the 27 cytokines. Inflammatory cytokines IFN-γ, IL-1β, IL-18, MCP-1, MIP-1α, TNF-α were not induced by rhPDGF-BB. Histology showed no differences in cell infiltration, and Ki67 and vWF immunofluorescence staining was similar among groups. CONCLUSIONS rhPDGF-BB delivered with a β-TCP/Col matrix exerts no exaggerated systemic or local host inflammatory response when compared to iliac crest syngeneic allograft bone or the control carrier. rhPDGF-BB mixed with a β-TCP/Col matrix could be a viable and safe biologic alternative to syngeneic allograft in spine fusion. Further studies need to be performed to evaluate efficacy in this setting.
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Affiliation(s)
- Jonathan T. Yamaguchi
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Joseph A. Weiner
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Silvia Minardi
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Allison C. Greene
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - David J. Ellenbogen
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Mitchell J. Hallman
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Vivek P. Shah
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Kevin M. Weisz
- Department of Orthopaedic SurgeryWilliam Beuamont HospitalRoyal OakMichiganUSA
| | - Soyeon Jeong
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Tejas Nandurkar
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Chawon Yun
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Wellington K. Hsu
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
| | - Erin L. Hsu
- Department of Orthopaedic SurgeryFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
- Simpson Querrey InstituteFeinberg School of Medicine, Northwestern UniversityChicagoIllinoisUSA
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12
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Motherwell JM, Hendershot BD, Goldman SM, Dearth CL. Gait biomechanics: A clinically relevant outcome measure for preclinical research of musculoskeletal trauma. J Orthop Res 2021; 39:1139-1151. [PMID: 33458856 DOI: 10.1002/jor.24990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/01/2020] [Accepted: 01/11/2021] [Indexed: 02/04/2023]
Abstract
Traumatic injuries to the musculoskeletal system are the most prevalent of those suffered by United States Military Service members and accounts for two-thirds of initial hospital costs to the Department of Defense. These combat-related wounds often leave survivors with life-long disability and represent a significant impediment to the readiness of the fighting force. There are immense opportunities for the field of tissue engineering and regenerative medicine (TE/RM) to address these musculoskeletal injuries through regeneration of damaged tissues as a means to restore limb functionality and improve quality of life for affected individuals. Indeed, investigators have made promising advancements in the treatment for these injuries by utilizing small and large preclinical animal models to validate therapeutic efficacy of next-generation TE/RM-based technologies. Importantly, utilization of a comprehensive suite of functional outcome measures, particularly those designed to mimic data collected within the clinical setting, is critical for successful translation and implementation of these therapeutics. To that end, the objective of this review is to emphasize the clinical relevance and application of gait biomechanics as a functional outcome measure for preclinical research studies evaluating the efficacy of TE/RM therapies to treat traumatic musculoskeletal injuries. Specifically, common musculoskeletal injuries sustained by service members-including volumetric muscle loss, post-traumatic osteoarthritis, and composite tissue injuries-are examined as case examples to highlight the use of gait biomechanics as an outcome measure using small and large preclinical animal models.
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Affiliation(s)
- Jessica M Motherwell
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, Maryland, USA.,Department of Surgery, Uniformed Services University of the Health Sciences and Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Brad D Hendershot
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, Maryland, USA.,Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.,Department of Rehabilitation Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Stephen M Goldman
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, Maryland, USA.,Department of Surgery, Uniformed Services University of the Health Sciences and Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Christopher L Dearth
- DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, Maryland, USA.,Department of Surgery, Uniformed Services University of the Health Sciences and Walter Reed National Military Medical Center, Bethesda, Maryland, USA
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13
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Biguetti CC, Couto MCR, Silva ACR, Shindo JVTC, Rosa VM, Shinohara AL, Andreo JC, Duarte MAH, Wang Z, Brotto M, Matsumoto MA. New Surgical Model for Bone-Muscle Injury Reveals Age and Gender-Related Healing Patterns in the 5 Lipoxygenase (5LO) Knockout Mouse. Front Endocrinol (Lausanne) 2020; 11:484. [PMID: 32849277 PMCID: PMC7431610 DOI: 10.3389/fendo.2020.00484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/22/2020] [Indexed: 12/31/2022] Open
Abstract
Signaling lipid mediators released from 5 lipoxygenase (5LO) pathways influence both bone and muscle cells, interfering in their proliferation and differentiation capacities. A major limitation to studying inflammatory signaling pathways in bone and muscle healing is the inadequacy of available animal models. We developed a surgical injury model in the vastus lateralis (VL) muscle and femur in 129/SvEv littermates mice to study simultaneous musculoskeletal (MSK) healing in male and female, young (3 months) and aged (18 months) WT mice compared to mice lacking 5LO (5LOKO). MSK defects were surgically created using a 1-mm punch device in the VA muscle followed by a 0.5-mm round defect in the femur. After days 7 and 14 post-surgery, the specimens were removed for microtomography (microCT), histopathology, and immunohistochemistry analyses. In addition, non-injured control skeletal muscles along with femur and L5 vertebrae were analyzed. Bones were microCT phenotyped, revealing that aged female WT mice presented reduced BV/TV and trabecular parameters compared to aged males and aged female 5LOKO mice. Skeletal muscles underwent a customized targeted lipidomics investigation for profiling and quantification of lipid signaling mediators (LMs), evidencing age, and gender related-differences in aged female 5LOKO mice compared to matched WT. Histological analysis revealed a suitable bone-healing process with osteoid deposition at day 7 post-surgery, followed by woven bone at day 14 post-surgery, observed in all young mice. Aged WT females displayed increased inflammatory response at day 7 post-surgery, delayed bone matrix maturation, and increased TRAP immunolabeling at day 14 post-surgery compared to 5LOKO females. Skeletal muscles of aged animals showed higher levels of inflammation in comparison to young controls at day 14 post-surgery; however, inflammatory process was attenuated in aged 5LOKO mice compared to aged WT. In conclusion, this new model shows that MSK healing is influenced by age, gender, and the 5LO pathway, which might serve as a potential target to investigate therapeutic interventions and age-related MSK diseases. Our new model is suitable for bone-muscle crosstalk studies.
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Affiliation(s)
- Claudia Cristina Biguetti
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
- Bone-Muscle Research Center, College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Maira Cristina Rondina Couto
- Department of Health Sciences, Universidade Do Sagrado Coração, Bauru, Brazil
- Bauru School of Dentistry, University of São Paulo, FOB-USP, São Paulo, Brazil
| | | | | | - Vinicius Mateus Rosa
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | | | - Jesus Carlos Andreo
- Bauru School of Dentistry, University of São Paulo, FOB-USP, São Paulo, Brazil
| | | | - Zhiying Wang
- Bone-Muscle Research Center, College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, United States
| | - Mariza Akemi Matsumoto
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
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14
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Klein C, Monet M, Barbier V, Vanlaeys A, Masquelet AC, Gouron R, Mentaverri R. The Masquelet technique: Current concepts, animal models, and perspectives. J Tissue Eng Regen Med 2020; 14:1349-1359. [PMID: 32621637 DOI: 10.1002/term.3097] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/02/2020] [Accepted: 06/15/2020] [Indexed: 12/20/2022]
Abstract
Bone reconstruction within a critical-sized defect remains a real challenge in orthopedic surgery. The Masquelet technique is an innovative, two-step therapeutic approach for bone reconstruction in which the placement of a poly (methylmethacrylate) spacer into the bone defect induces the neo-formation of a tissue called "induced membrane." This surgical technique has many advantages and is often preferred to a vascularized bone flap or Ilizarov's technique. Although the Masquelet technique has achieved high clinical success rates since its development by Alain-Charles Masquelet in the early 2000s, very little is known about how the process works, and few animal models of membrane induction have been developed. Our successful use of this technique in the clinic and our interest in the mechanisms of tissue regeneration (notably bone regeneration) prompted us to develop a surgical model of the Masquelet technique in rats. Here, we provide a comprehensive review of the literature on animal models of membrane induction, encompassing the defect site, the surgical procedure, and the histologic and osteogenic properties of the induced membrane. We also discuss the advantages and disadvantages of those models to facilitate efforts in characterizing the complex biological mechanisms that underlie membrane induction.
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Affiliation(s)
- Céline Klein
- Department of Pediatric Orthopedic Surgery, Amiens University Medical Center, Jules Verne University of Picardie, Amiens, France.,MP3CV-EA7517, CURS, miens University Medical Center, Jules Verne University of Picardie, Amiens, France
| | - Michael Monet
- MP3CV-EA7517, CURS, miens University Medical Center, Jules Verne University of Picardie, Amiens, France
| | - Vincent Barbier
- Department of Pediatric Orthopedic Surgery, Amiens University Medical Center, Jules Verne University of Picardie, Amiens, France.,MP3CV-EA7517, CURS, miens University Medical Center, Jules Verne University of Picardie, Amiens, France
| | - Alison Vanlaeys
- MP3CV-EA7517, CURS, miens University Medical Center, Jules Verne University of Picardie, Amiens, France
| | - Alain-Charles Masquelet
- Service de Chirurgie Orthopédique, Traumatologie et Chirurgie de la Main, Saint-Antoine Hospital, Paris, France
| | - Richard Gouron
- Department of Pediatric Orthopedic Surgery, Amiens University Medical Center, Jules Verne University of Picardie, Amiens, France.,MP3CV-EA7517, CURS, miens University Medical Center, Jules Verne University of Picardie, Amiens, France
| | - Romuald Mentaverri
- MP3CV-EA7517, CURS, miens University Medical Center, Jules Verne University of Picardie, Amiens, France.,Department of Biochemistry and Endocrine Biology, Amiens University Medical Center, Jules Verne University of Picardie, Amiens, France
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15
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Mann KA, Miller MA, Tatusko ME, Oest ME. Similitude of cement-bone micromechanics in cemented rat and human knee replacement. J Orthop Res 2020; 38:1529-1537. [PMID: 32167182 PMCID: PMC7293949 DOI: 10.1002/jor.24661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 02/12/2020] [Accepted: 03/06/2020] [Indexed: 02/04/2023]
Abstract
A preclinical rat knee replacement model was recently developed to explore the biological and mechanobiological changes of trabecular resorption for cement-bone interdigitated regions. The goal here was to evaluate the relevance of this model compared with human knee replacement with regards to functional micromechanics. Eight nonsurvival, cemented knee replacement surgeries were performed, the interdigitated gap morphology was quantified, and interface micromotion between cement and bone was measured for 1 to 5 bodyweight loading. Computational fluid dynamics modeling of unit cell geometries with small gaps between trabeculae and cement was used to estimate fluid flow. Gap width (3.6 μm) was substantially smaller compared with cement-bone gaps reported in human knee replacement (11.8 μm). Micromotion at the cement-bone border was also decreased for the rat knee replacement (0.48 μm), compared with human (1.97 μm), for 1 bodyweight loading. However, the micromotion-to-gap width ratio (0.19 and 0.22 for, rat and human), and estimated fluid shear stress (6.47 and 7.13 Pa, for rat and human) were similar. Replicating the fluid dynamic characteristics of cement-bone interdigitated regions in human knee replacements using preclinical models may be important to recapitulate trabecular resorption mechanisms due to proposed supraphysiologic fluid shear stress. Statement of clinical significance: local cement-bone micromotion due to joint loading may contribute to the process of clinical loosening in total joint replacements. This work shows that while micromotion and gap morphology are diminished for the rat knee model compared to human, the motion-to-gap ratio, and corresponding fluid shear stress are of similar magnitudes.
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16
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Munhoz MDAES, Pomini KT, Plepis AMDG, Martins VDCA, Machado EG, de Moraes R, Cunha FB, Santos Junior AR, Camargo Cardoso GB, Duarte MAH, Alcalde MP, Buchaim DV, Buchaim RL, da Cunha MR. Elastin-derived scaffolding associated or not with bone morphogenetic protein (BMP) or hydroxyapatite (HA) in the repair process of metaphyseal bone defects. PLoS One 2020; 15:e0231112. [PMID: 32310975 PMCID: PMC7170266 DOI: 10.1371/journal.pone.0231112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/16/2020] [Indexed: 02/08/2023] Open
Abstract
Tissue engineering represents a promising alternative for reconstructive surgical procedures especially for the repair of bone defects that do not regenerate spontaneously. The present study aimed to evaluate the effects of the elastin matrix (E24/50 and E96/37) incorporated with hydroxyapatite (HA) or morphogenetic protein (BMP) on the bone repair process in the distal metaphysis of rat femur. The groups were: control group (CG), hydrolyzed elastin matrix at 50°C/24h (E24/50), E24/50 + HA (E24/50/HA), E24/50 + BMP (E24/50/BMP), hydrolyzed elastin matrix at 37°C/96h (E96/37), E96/37 + HA (E96/37/HA), E96/37 + BMP (E96/37/BMP). Macroscopic and radiographic analyses showed longitudinal integrity of the femur in all groups without fractures or bone deformities. Microtomographically, all groups demonstrated partial closure by mineralized tissue except for the E96/37/HA group with hyperdense thin bridge formation interconnecting the edges of the ruptured cortical. Histologically, there was no complete cortical recovery in any group, but partial closure with trabecular bone. In defects filled with biomaterials, no chronic inflammatory response or foreign body type was observed. The mean volume of new bone formed was statistically significant higher in the E96/37/HA and E24/50 groups (71.28 ± 4.26 and 66.40 ± 3.69, respectively) than all the others. In the confocal analysis, it was observed that all groups presented new bone markings formed during the experimental period, being less evident in the CG group. Von Kossa staining revealed intense calcium deposits distributed in all groups. Qualitative analysis of collagen fibers under polarized light showed a predominance of red-orange birefringence in the newly regenerated bone with no difference between groups. It was concluded that the E24/50 and E96/37/HA groups promoted, with greater speed, the bone repair process in the distal metaphysis of rat femur.
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Affiliation(s)
- Marcelo de Azevedo e Sousa Munhoz
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo, Brazil
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos, São Paulo, Brazil
| | - Karina Torres Pomini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru, São Paulo, Brazil
| | - Ana Maria de Guzzi Plepis
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos, São Paulo, Brazil
- São Carlos Institute of Chemistry, University of São Paulo (USP), São Carlos, São Paulo, Brazil
| | | | - Eduardo Gomes Machado
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo, Brazil
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos, São Paulo, Brazil
| | - Renato de Moraes
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo, Brazil
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos, São Paulo, Brazil
| | - Fernando Bento Cunha
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo, Brazil
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos, São Paulo, Brazil
| | | | - Guinea Brasil Camargo Cardoso
- Materials Engineering Department, Faculty of Mechanical Engineering, State University of Campinas, Campinas, São Paulo, Brazil
- University Center Nossa Senhora do Patrocínio (CEUNSP), Cruzeiro do Sul University (UNICSUL), Itu, São Paulo, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru, São Paulo, Brazil
| | - Murilo Priori Alcalde
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru, São Paulo, Brazil
- Health Sciences Center, Sacred Heart University Center (UNISAGRADO), Bauru, São Paulo, Brazil
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília, São Paulo, Brazil
- Medical School, University Center of Adamantina (UniFAI), Adamantina, São Paulo, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru, São Paulo, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília, São Paulo, Brazil
| | - Marcelo Rodrigues da Cunha
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo, Brazil
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos, São Paulo, Brazil
- University Center Nossa Senhora do Patrocínio (CEUNSP), Cruzeiro do Sul University (UNICSUL), Itu, São Paulo, Brazil
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17
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Calciolari E, Donos N. Proteomic and Transcriptomic Approaches for Studying Bone Regeneration in Health and Systemically Compromised Conditions. Proteomics Clin Appl 2020; 14:e1900084. [PMID: 32131137 DOI: 10.1002/prca.201900084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 02/05/2020] [Indexed: 01/04/2023]
Abstract
Bone regeneration is a complex biological process, where the molecular mechanisms are only partially understood. In an ageing population, where the prevalence of chronic diseases with an impact on bone metabolism is increasing, it becomes crucial to identify new strategies that would improve regenerative outcomes also in medically compromised patients. In this context, omics are demonstrating a great potential, as they offer new insights on the molecular mechanisms regulating physiologic/pathologic bone healing and, at the same time, allow the identification of new diagnostic and therapeutic targets. This review provides an overview on the current evidence on the use of transcriptomic and proteomic approaches in bone regeneration research, particularly in relation to type 1 diabetes and osteoporosis, and discusses future scenarios and potential benefits and limitations on the integration of multi-omics. It is suggested that future research will leverage the synergy of omics with statistical modeling and bioinformatics to prompt the understanding of the biology underpinning bone formation in health and medically compromised conditions. With an eye toward personalized medicine, new strategies combining the mining of large datasets and bioinformatic data with a detailed characterization of relevant phenotypes will need to be pursued to further the understanding of disease mechanisms.
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Affiliation(s)
- Elena Calciolari
- Centre for Oral Immunobiology and Regenerative Medicine & Centre for Oral Clinical Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK.,Department of Medicine and Surgery, School of Dental Medicine, University of Parma, via Gramsci 14, Parma, 43126, Italy
| | - Nikolaos Donos
- Centre for Oral Immunobiology and Regenerative Medicine & Centre for Oral Clinical Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK
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18
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Morris JL, Letson HL, Grant A, Wilkinson M, Hazratwala K, McEwen P. Experimental model of peri-prosthetic infection of the knee caused by Staphylococcus aureus using biomaterials representative of modern TKA. Biol Open 2019; 8:8/9/bio045203. [PMID: 31533935 PMCID: PMC6777360 DOI: 10.1242/bio.045203] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Prosthetic joint infection (PJI) following total knee arthroplasty (TKA) remains the leading cause for revision surgery, with Staphylococcus aureus the bacterium most frequently responsible. We describe a novel rat model of implant-associated S. aureus infection of the knee using orthopaedic materials relevant to modern TKA. Male Sprague-Dawley rats underwent unilateral knee implant surgery, which involved placement of a cementless, porous titanium implant into the femur, and an ultra-highly cross-linked polyethyelene (UHXLPE) implant into the proximal tibia within a mantle of gentamicin-laden bone cement. S. aureus biofilms were established on the surface of titanium implants prior to implantation into the femur of infected animals, whilst control animals received sterile implants. Compared to controls, the time taken to full weight-bear and recover pre-surgical body weight was greater in the infected group. Neutrophils and C-reactive protein levels were significantly higher in infected compared to control animals at day 5 post surgery, returning to baseline levels for the remainder of the 28-day experimental period. Blood cultures remained negative and additional plasma inflammatory markers were comparable for control and infected animals, consistent with the clinical presentation of delayed-onset PJI. S. aureus was recovered from joint tissue and implants at day 28 post surgery from all animals that received pre-seeded titanium implants, despite the use of antibiotic-laden cement. Persistent localised infection was associated with increased inflammatory responses and radiological changes in peri-implant tissue. The availability of a preclinical model that is reproducible based on the use of current TKA materials and consistent with clinical features of delayed-onset PJI will be valuable for evaluation of innovative therapeutic approaches.
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Affiliation(s)
- Jodie L Morris
- Orthopaedic Research Institute of Queensland, Townsville 4812, Australia .,College of Medicine, Division of Tropical Health and Medicine, James Cook University, Townsville 4811, Australia
| | - Hayley L Letson
- College of Medicine, Division of Tropical Health and Medicine, James Cook University, Townsville 4811, Australia
| | - Andrea Grant
- Orthopaedic Research Institute of Queensland, Townsville 4812, Australia
| | - Matthew Wilkinson
- Orthopaedic Research Institute of Queensland, Townsville 4812, Australia
| | - Kaushik Hazratwala
- Orthopaedic Research Institute of Queensland, Townsville 4812, Australia
| | - Peter McEwen
- Orthopaedic Research Institute of Queensland, Townsville 4812, Australia
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19
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Schafrum Macedo A, Cezaretti Feitosa C, Yoiti Kitamura Kawamoto F, Vinicius Tertuliano Marinho P, dos Santos Dal‐Bó Í, Fiuza Monteiro B, Prado L, Bregadioli T, Antonio Covino Diamante G, Ricardo Auada Ferrigno C. Animal modeling in bone research-Should we follow the White Rabbit? Animal Model Exp Med 2019; 2:162-168. [PMID: 31773091 PMCID: PMC6762042 DOI: 10.1002/ame2.12083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 01/30/2023] Open
Abstract
Animal models are live subjects applied to translational research. They provide insights into human diseases and enhance biomedical knowledge. Livestock production has favored the pace of human social development over millennia. Today's society is more aware of animal welfare than past generations. The general public has marked objections to animal research and many species are falling into disuse. The search for an ideal methodology to replace animal use is on, but animal modeling still holds great importance to human health. Bone research, in particular, has unmet requirements that in vitro technologies cannot yet fully address. In that sense, standardizing novel models remains necessary and rabbits are gaining in popularity as potential bone models. Our aim here is to provide a broad overview of animal modeling and its ethical implications, followed by a narrower focus on bone research and the role rabbits are playing in the current scenario.
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Affiliation(s)
- Aline Schafrum Macedo
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Caroline Cezaretti Feitosa
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Fernando Yoiti Kitamura Kawamoto
- Department of Veterinary SurgerySchool of Agricultural and Veterinarian SciencesSão Paulo State UniversityUNESPJaboticabalSPBrazil
| | - Paulo Vinicius Tertuliano Marinho
- Department of Veterinary SurgeryFederal Institute of Education, Science, and Technology of Southern Minas GeraisIFSULDEMINASMuzambinhoMGBrazil
| | - Ísis dos Santos Dal‐Bó
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Bianca Fiuza Monteiro
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Leonardo Prado
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Thales Bregadioli
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Gabriel Antonio Covino Diamante
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Cassio Ricardo Auada Ferrigno
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
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20
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Freitag L, Günther C, Eberli U, Fürst A, Zeiter S, Stadelmann VA. Relative effects of age on implant integration in a rat model: A longitudinal in vivo microct study. J Orthop Res 2019; 37:541-552. [PMID: 30575124 DOI: 10.1002/jor.24210] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/11/2018] [Indexed: 02/04/2023]
Abstract
The effect of age on implant fixation in bone is not always considered during the design of preclinical models. The decision on animal's age is often related to practical or historical reasons, which ultimately may affect the reproducibility of results. This study aimed to quantify the effect of age by monitoring the fixation of contrast-enhanced PEEK screws in rats, hypothesizing that the kinetics of fixation is impaired in older animals but that age effects are less severe than osteoporotic effects. The time course of implant fixation was investigated in healthy rats at 24, 40, and 60 weeks of age; and in ovariectomized rats. Implant fixation was monitored using in-vivo microCT and dynamic histomorphometry during 1 month. The rats were euthanized 28 days post screw insertion. The data was analyzed both in absolute value and after normalization to baseline bone mass. In absolute terms, greater age had a detrimental effect on bone implant contact, bone fraction, implant stiffness, and bone remodeling but less than ovariectomy. Interestingly, once data was normalized to baseline bone mass this effect disappeared, suggesting that the physiologic response to implant placement was not affected by age. In conclusion, implant fixation kinetics is less affected by age than by baseline bone mass in this rat model. Animals of different ages can therefore be compared but data must be construed relatively to baseline bone mass and not in absolute terms. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 9999:1-12, 2018.
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Affiliation(s)
| | - Christian Günther
- AO Research Institute Davos, Davos, Switzerland.,Klinik für Pferdechirurgie, Vetsuisse-Fakultät der Universität Zürich, Zürich, Switzerland
| | | | - Anton Fürst
- Klinik für Pferdechirurgie, Vetsuisse-Fakultät der Universität Zürich, Zürich, Switzerland
| | | | - Vincent A Stadelmann
- AO Research Institute Davos, Davos, Switzerland.,Schulthess Clinic, Department of Research and Development, Zürich, Switzerland
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