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Broussolle T, Roux JP, Chapurlat R, Barrey C. Murine models of posterolateral spinal fusion: A systematic review. Neurochirurgie 2023; 69:101428. [PMID: 36871885 DOI: 10.1016/j.neuchi.2023.101428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND Rodent models are commonly used experimentally to assess treatment effectiveness in spinal fusion. Certain factors are associated with better fusion rates. The objectives of the present study were to report the protocols most frequently used, to evaluate factors known to positively influence fusion rate, and to identify new factors. METHOD A systematic literature search of PubMed and Web of Science found 139 experimental studies of posterolateral lumbar spinal fusion in rodent models. Data for level and location of fusion, animal strain, sex, weight and age, graft, decortication, fusion assessment and fusion and mortality rates were collected and analyzed. RESULTS The standard murine model for spinal fusion was male Sprague Dawley rats of 295g weight and 13 weeks' age, using decortication, with L4-L5 as fusion level. The last two criteria were associated with significantly better fusion rates. On manual palpation, the overall mean fusion rate in rats was 58% and the autograft mean fusion rate was 61%. Most studies evaluated fusion as a binary on manual palpation, and only a few used CT and histology. Average mortality was 3.03% in rats and 1.56% in mice. CONCLUSIONS These results suggest using a rat model, younger than 10 weeks and weighing more than 300 grams on the day of surgery, to optimize fusion rates, with decortication before grafting and fusing the L4-L5 level.
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Affiliation(s)
- T Broussolle
- Department of Spine Surgery, P. Wertheimer University Hospital, GHE, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France; Inserm UMR 1033, université Claude-Bernard Lyon 1, Lyon, France.
| | - Jean-Paul Roux
- Inserm UMR 1033, université Claude-Bernard Lyon 1, Lyon, France
| | - R Chapurlat
- Inserm UMR 1033, université Claude-Bernard Lyon 1, Lyon, France
| | - C Barrey
- Department of Spine Surgery, P. Wertheimer University Hospital, GHE, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France; Arts et métiers ParisTech, ENSAM, 151, boulevard de l'Hôpital, 75013 Paris, France
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Comparison of Freshly Isolated Adipose Tissue-derived Stromal Vascular Fraction and Bone Marrow Cells in a Posterolateral Lumbar Spinal Fusion Model. Spine (Phila Pa 1976) 2021; 46:631-637. [PMID: 32991510 DOI: 10.1097/brs.0000000000003709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Rat posterolateral lumbar fusion model. OBJECTIVE The aim of this study was to compare the efficacy of freshly isolated adipose tissue-derived stromal vascular fraction (A-SVF) and bone marrow cells (BMCs) cells in achieving spinal fusion in a rat model. SUMMARY OF BACKGROUND DATA Adipose tissue-derived stromal cells (ASCs) offer advantages as a clinical cell source compared to bone marrow-derived stromal cells (BMSCs), including larger available tissue volumes and reduced donor site morbidity. While pre-clinical studies have shown that ex vivo expanded ASCs can be successfully used in spinal fusion, the use of A-SVF cells better allows for clinical translation. METHODS A-SVF cells were isolated from the inguinal fat pads, whereas BMCs were isolated from the long bones of syngeneic 6- to 8-week-old Lewis rats and combined with Vitoss (Stryker) bone graft substitute for subsequent transplantation. Posterolateral spinal fusion surgery at L4-L5 was performed on 36 female Lewis rats divided into three experimental groups: Vitoss bone graft substitute only (VO group); Vitoss + 2.5 × 106 A-SVF cells/side; and, Vitoss + 2.5 × 106 BMCs/side. Fusion was assessed 8 weeks post-surgery via manual palpation, micro-computed tomography (μCT) imaging, and histology. RESULTS μCT imaging analyses revealed that fusion volumes and μCT fusion scores in the A-SVF group were significantly higher than in the VO group; however, they were not significantly different between the A-SVF group and the BMC group. The average manual palpation score was highest in the A-SVF group compared with the BMC and VO groups. Fusion masses arising from cell-seeded implants yielded better bone quality than nonseeded bone graft substitute. CONCLUSION In a rat model, A-SVF cells yielded a comparable fusion mass volume and radiographic rate of fusion to BMCs when combined with a clinical-grade bone graft substitute. These results suggest the feasibility of using freshly isolated A-SVF cells in spinal fusion procedures.Level of Evidence: N/A.
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Zhou L, Pan M, Zhang Z, Diao Z, Peng X. Enhancing Osseointegration of TC4 Alloy by Surficial Activation Through Biomineralization Method. Front Bioeng Biotechnol 2021; 9:639835. [PMID: 33708765 PMCID: PMC7940542 DOI: 10.3389/fbioe.2021.639835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/02/2021] [Indexed: 11/25/2022] Open
Abstract
Titanium (Ti) alloys have been applied to biomedical implants for a long time. Although Ti alloys are biocompatible, efforts have been continuously made to improve their bone conductivity and osteogenesis for enhancing their performance. Silk fibroin (SF) is a natural biomaterial with excellent biomedical and mechanical properties, and hydroxyapatite (HAP) nanocomposites derived from SF are promising for producing “artificial bone” owing to their biomedical applicability and strong mechanical functions. Therefore, we built an SF coating on the surface of Ti–6Al–4V alloy, and then the incubated SF-coated Ti alloy were immersed in simulated body fluid to induce mineral deposition of HAP on the alloys. The results from Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) analysis, and Attenuated Total Reflection–Fourier Transform Infrared Spectroscopy (ATR–FTIR) confirmed the deposition of a mineral layer on the SF film surface. The proliferation, adhesion, and differentiation of MG-63 were tested, along with the BMP-2, COX-2, and OPG expression and protein content in the MG-63. Both Ti + SF and Ti + SF + HAP groups exhibited significantly better performance than a control Ti group with regard to the cell adhesion, cell proliferation, and protein expression. Furthermore, the hybrid layer comprising HAP and SF delivered more significant improvement of the osseointegration than the SF alone. It is hoped that the proposed methods can be used for constructing modified surfaces on Ti alloys, as they endowed the implants with good osteogenic potential.
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Affiliation(s)
- Liang Zhou
- Department of Materials and Engineering, School of Forestry and Landscape Architecture, Anhui Agriculture University, Hefei, China
| | - Meng Pan
- Department of Materials and Engineering, School of Forestry and Landscape Architecture, Anhui Agriculture University, Hefei, China
| | - Zhenghua Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zijie Diao
- Department of Materials and Engineering, School of Forestry and Landscape Architecture, Anhui Agriculture University, Hefei, China
| | - Xiaochun Peng
- Department of Orthopaedics, The Sixth Affiliated People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Nano-hydroxyapatite mineralized silk fibroin porous scaffold for tooth extraction site preservation. Dent Mater 2019; 35:1397-1407. [DOI: 10.1016/j.dental.2019.07.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/12/2019] [Accepted: 07/15/2019] [Indexed: 12/13/2022]
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Salamanna F, Giavaresi G, Contartese D, Bigi A, Boanini E, Parrilli A, Lolli R, Gasbarrini A, Barbanti Brodano G, Fini M. Effect of strontium substituted ß-TCP associated to mesenchymal stem cells from bone marrow and adipose tissue on spinal fusion in healthy and ovariectomized rat. J Cell Physiol 2019; 234:20046-20056. [PMID: 30950062 DOI: 10.1002/jcp.28601] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/11/2019] [Accepted: 03/19/2019] [Indexed: 01/05/2023]
Abstract
Despite alternatives to autogenous bone graft for spinal fusion have been investigated, it has been shown that osteoconductive materials alone do not give a rate of fusion comparable with autogenous bone. This study analyzed a strontium substituted ß-tricalcium phosphate (Sr-ßTCP) associated with syngeneic, unexpanded, and undifferentiated mesenchymal stem cells from bone marrow (BMSC) or adipose tissue (ADSC) as a new tissue engineering approach for spinal fusion procedures. A posterolateral fusion was performed in 15 ovariectomized (OVX) and 15 sham-operated (SHAM) Inbred rats. Both SHAM and OVX animals were divided into three groups: Sr-ßTCP, Sr-ßTCP + BMCSs, and Sr-ßTCP + ADSCs. Animals were euthanized 8 weeks after surgery and the spines evaluated by manual palpation, micro-CT, and histology. For both SHAM and OVX animals, the fusion tissue in the Sr-ßTCP + BMSCs group was more solid. This effect was significantly higher in OVX animals by comparing the Sr-ßTCP + BMCSs group with Sr-ßTCP + ADSCs. Radiographical score, based on micro-CT 2D image, highlighted that the Sr-ßTCP + BMCSs group presented a similar fusion to Sr-ßTCP and higher than Sr-ßTCP + ADSCs in both SHAM and OVX animals. Micro-CT 3D parameters did not show significant differences among groups. Histological score showed significantly higher fusion in Sr-ßTCP + BMSCs group than Sr-ßTCP and Sr-ßTCP + ADSCs, for both SHAM and OVX animals. In conclusion, our results suggest that addition of BMSCs to a Sr-ßTCP improve bone formation and fusion, both in osteoporotic and nonosteoporotic animal, whereas spinal fusion is not enhanced in rats treated with Sr-ßTCP + ADSCs. Thus, for conducting cells therapy in spinal surgery BMSCs still seems to be a better choice compared with ADSCs.
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Affiliation(s)
- Francesca Salamanna
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Gianluca Giavaresi
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Deyanira Contartese
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Adriana Bigi
- Department of Chemistry "G.Ciamician", University of Bologna, Bologna, Italy
| | - Elisa Boanini
- Department of Chemistry "G.Ciamician", University of Bologna, Bologna, Italy
| | - Annapaola Parrilli
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Roberta Lolli
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alessandro Gasbarrini
- Department of Oncological and Degenerative Spine Surgery, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giovanni Barbanti Brodano
- Department of Oncological and Degenerative Spine Surgery, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Milena Fini
- Laboratory of Biomechanics and Technological Innovation, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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Mehrotra S, Chouhan D, Konwarh R, Kumar M, Jadi PK, Mandal BB. Comprehensive Review on Silk at Nanoscale for Regenerative Medicine and Allied Applications. ACS Biomater Sci Eng 2019; 5:2054-2078. [PMID: 33405710 DOI: 10.1021/acsbiomaterials.8b01560] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shreya Mehrotra
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Dimple Chouhan
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Rocktotpal Konwarh
- Biotechnology Department, Addis Ababa Science and Technology University, Addis Ababa−16417, Ethiopia
| | - Manishekhar Kumar
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Praveen Kumar Jadi
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
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Liu B, Gao X, Sun Z, Fang Q, Geng X, Zhang H, Wang G, Dou Y, Hu P, Zhu K, Wang D, Xing J, Liu D, Zhang M, Li R. Biomimetic porous silk fibroin/biphasic calcium phosphate scaffold for bone tissue regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 30:4. [PMID: 30569403 DOI: 10.1007/s10856-018-6208-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
The purpose of our study is to prepare a biomimetic porous silk fibroin (SF)/biphasic calcium phosphate (BCP) scaffold, and evaluate its performance in bone tissue regeneration. The differences in pore size, porosity, mechanical strength and biocompatibility of four different fibroin-containing scaffolds (0, 20, 40, and 60% SF) were studied in vitro. After inoculation with MC3T3-E1 cells, the ectopic bone formation ability of the SF/BCP bionic scaffold was evaluated in a rat model. The SEM and CT demonstrated that compared with pure BCP group (0% SF), the pore size and porosity of SF/BCP scaffolds were proportional to SF content, of which 40% of SF and 60% of SF groups were more suitable for cell growth. The compressive strength of SF/BCP scaffold was greater than that of the pure BCP scaffold, and showed a trend of first increasing and then decreasing with the increase of SF content, among which 40% of SF group had the maximum compressive strength (40.80 + 0.68) MPa. The SF/BCP scaffold had good biocompatibility, under the electron microscope, the cells can be smoothly attached to and propagated on the scaffold. After loading the osteoblasts, it showed excellent osteogenic capacity in the rat model. The SF/BCP scaffold can highly simulate the micro-environment of natural bone formation and can meet the requirements of tissue engineering. The SF/BCP biomimetic porous scaffold has excellent physical properties and biocompatibility. It can highly simulate the natural bone matrix composition and microenvironment, and can promote the adhesion and proliferation of osteoblasts. The SF/BCP scaffold has good ectopic osteogenesis after loading with osteoblasts, which can meet the requirements of scaffold materials in tissue engineering, and has broad application prospects in clinical application.
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Affiliation(s)
- Bin Liu
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Xiyuan Gao
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Zhaozhong Sun
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China.
| | - Qingmin Fang
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Xiaopeng Geng
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Hanli Zhang
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Guanglin Wang
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Yongfeng Dou
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Peng Hu
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Kai Zhu
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Dawei Wang
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Jianqiang Xing
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Dong Liu
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Min Zhang
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
| | - Rui Li
- Department of Spine Surgery, Affiliated Hospital of Binzhou Medical University, No. 661, Huanghe 2nd Road, Shandong Province, Binzhou City, P. R. China
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Duarte RM, Varanda P, Reis RL, Duarte ARC, Correia-Pinto J. Biomaterials and Bioactive Agents in Spinal Fusion. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:540-551. [DOI: 10.1089/ten.teb.2017.0072] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rui M. Duarte
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Pedro Varanda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Rui L. Reis
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Ana Rita C. Duarte
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Jorge Correia-Pinto
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Pediatric Surgery Department, Hospital de Braga, Braga, Portugal
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Mesenchymal Stem Cells for the Treatment of Spinal Arthrodesis: From Preclinical Research to Clinical Scenario. Stem Cells Int 2017; 2017:3537094. [PMID: 28286524 PMCID: PMC5327761 DOI: 10.1155/2017/3537094] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/05/2017] [Indexed: 02/07/2023] Open
Abstract
The use of spinal fusion procedures has rapidly augmented over the last decades and although autogenous bone graft is the “gold standard” for these procedures, alternatives to its use have been investigated over many years. A number of emerging strategies as well as tissue engineering with mesenchymal stem cells (MSCs) have been planned to enhance spinal fusion rate. This descriptive systematic literature review summarizes the in vivo studies, dealing with the use of MSCs in spinal arthrodesis surgery and the state of the art in clinical applications. The review has yielded promising evidence supporting the use of MSCs as a cell-based therapy in spinal fusion procedures, thus representing a suitable biological approach able to reduce the high cost of osteoinductive factors as well as the high dose needed to induce bone formation. Nevertheless, despite the fact that MSCs therapy is an interesting and important opportunity of research, in this review it was detected that there are still doubts about the optimal cell concentration and delivery method as well as the ideal implantation techniques and the type of scaffolds for cell delivery. Thus, further inquiry is necessary to carefully evaluate the clinical safety and efficacy of MSCs use in spine fusion.
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