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Liu X, Astudillo Potes MD, Serdiuk V, Dashtdar B, Schreiber AC, Rezaei A, Lee Miller A, Hamouda AM, Shafi M, Elder BD, Lu L. Injectable bioactive poly(propylene fumarate) and polycaprolactone based click chemistry bone cement for spinal fusion in rabbits. J Biomed Mater Res A 2024; 112:1803-1816. [PMID: 38644548 DOI: 10.1002/jbm.a.37725] [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] [Received: 01/11/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/23/2024]
Abstract
Degenerative spinal pathology is a widespread medical issue, and spine fusion surgeries are frequently performed. In this study, we fabricated an injectable bioactive click chemistry polymer cement for use in spinal fusion and bone regrowth. Taking advantages of the bioorthogonal click reaction, this cement can be crosslinked by itself eliminating the addition of a toxic initiator or catalyst, nor any external energy sources like UV light or heat. Furthermore, nano-hydroxyapatite (nHA) and microspheres carrying recombinant human bone morphogenetic protein-2 (rhBMP-2) and recombinant human vascular endothelial growth factor (rhVEGF) were used to make the cement bioactive for vascular induction and osteointegration. After implantation into a rabbit posterolateral spinal fusion (PLF) model, the cement showed excellent induction of new bone formation and bridging bone, achieving results comparable to autograft control. This is largely due to the osteogenic properties of nano-hydroxyapatite (nHA) and the released rhBMP-2 and rhVEGF growth factors. Since the availability of autograft sources is limited in clinical settings, this injectable bioactive click chemistry cement may be a promising alternative for spine fusion applications in addressing various spinal conditions.
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Affiliation(s)
- Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Maria D Astudillo Potes
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Vitalii Serdiuk
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Babak Dashtdar
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Areonna C Schreiber
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Asghar Rezaei
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - A Lee Miller
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Mahnoor Shafi
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Benjamin D Elder
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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Salim NV, Madhan B, Glattauer V, Ramshaw JAM. Comprehensive review on collagen extraction from food by-products and waste as a value-added material. Int J Biol Macromol 2024; 278:134374. [PMID: 39098671 DOI: 10.1016/j.ijbiomac.2024.134374] [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: 02/24/2024] [Revised: 07/18/2024] [Accepted: 07/30/2024] [Indexed: 08/06/2024]
Abstract
The consumption of animal products has witnessed a significant increase over the years, leading to a growing need for industries to adopt strict waste control measures to mitigate environmental impacts. The disposal of animal waste in landfill can result in diverse and potentially hazardous decomposition by-products. Animal by-products, derived from meat, poultry, seafood and fish industries, offer a substantial raw material source for collagen and gelatin production due to their high protein content. Collagen, being a major protein component of animal tissues, represents an abundant resource that finds application in various chemical and material industries. The demand for collagen-based products continues to grow, yet the availability of primary material remains limited and insufficient to meet projected needs. Consequently, repurposing waste materials that contain collagen provides an opportunity to meet this need while at the same time minimizing the amount of waste that is dumped. This review examines the potential to extract value from the collagen content present in animal-derived waste and by-products. It provides a systematic evaluation of different species groups and discusses various approaches for processing and fabricating repurposed collagen. This review specifically focuses on collagen-based research, encompassing an examination of its physical and chemical properties, as well as the potential for chemical modifications. We have detailed how the research and knowledge built on collagen structure and function will drive the new initiatives that will lead to the development of new products and opportunities in the future. Additionally, it highlights emerging approaches for extracting high-quality protein from waste and discusses efforts to fabricate collagen-based materials leading to the development of new and original products within the chemical, biomedical and physical science-based industries.
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Affiliation(s)
- Nisa V Salim
- School of Engineering, Swinburne University of Technology, Hawthorne, Victoria 3122, Australia.
| | - Balaraman Madhan
- Centre for Academic and Research Excellence, CSIR-Central Leather Research Institute, Sardar Patel Road, Adyar, Chennai 600 020, India
| | | | - John A M Ramshaw
- School of Engineering, Swinburne University of Technology, Hawthorne, Victoria 3122, Australia
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Fred EJ, Minardi S, Goodwin AM, Nandurkar TS, Plantz MA, Lyons JG, Paul JT, Foley JP, Wintring AJ, Furman AA, Jeong S, Yun C, Stock SR, Hsu WK, Hsu EL. A Mechanistic and Preclinical Assessment of BioRestore Bioactive Glass as a Synthetic Bone Graft Extender and Substitute for Osteoinduction and Spine Fusion. Clin Spine Surg 2024; 37:315-321. [PMID: 38531819 DOI: 10.1097/bsd.0000000000001597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 11/29/2023] [Indexed: 03/28/2024]
Abstract
STUDY DESIGN Preclinical animal study. OBJECTIVE Evaluate the osteoinductivity and bone regenerative capacity of BioRestore bioactive glass. SUMMARY OF BACKGROUND DATA BioRestore is a Food and Drug Administration (FDA)-approved bone void filler that has not yet been evaluated as a bone graft extender or substitute for spine fusion. METHODS In vitro and in vivo methods were used to compare BioRestore with other biomaterials for the capacity to promote osteodifferentiation and spinal fusion. The materials evaluated (1) absorbable collagen sponge (ACS), (2) allograft, (3) BioRestore, (4) Human Demineralized Bone Matrix (DBM), and (5) MasterGraft. For in vitro studies, rat bone marrow-derived stem cells (BMSC) were cultured on the materials in either standard or osteogenic media (SM, OM), followed by quantification of osteogenic marker genes ( Runx2, Osx, Alpl, Bglap, Spp1 ) and alkaline phosphatase (ALP) activity. Sixty female Fischer rats underwent L4-5 posterolateral fusion (PLF) with placement of 1 of 5 implants: (1) ICBG from syngeneic rats; (2) ICBG+BioRestore; (3) BioRestore alone; (4) ICBG+Allograft; or (5) ICBG+MasterGraft. Spines were harvested 8 weeks postoperatively and evaluated for bone formation and fusion via radiography, blinded manual palpation, microCT, and histology. RESULTS After culture for 1 week, BioRestore promoted similar expression levels of Runx2 and Osx to cells grown on DBM. At the 2-week timepoint, the relative ALP activity for BioRestore-OM was significantly higher ( P <0.001) than that of ACS-OM and DBM-OM ( P <0.01) and statistically equivalent to cells grown on allograft-OM. In vivo, radiographic and microCT evaluation showed some degree of bridging bone formation in all groups tested, with the exception of BioRestore alone, which did not produce successful fusions. CONCLUSIONS This study demonstrates the capacity of BioRestore to promote osteoinductivity in vitro. In vivo, BioRestore performed similarly to commercially available bone graft extender materials but was incapable of producing fusion as a bone graft substitute. LEVEL OF EVIDENCE Level V.
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Affiliation(s)
- Elianna J Fred
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Silvia Minardi
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Alyssa M Goodwin
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Tejas S Nandurkar
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Mark A Plantz
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Joseph G Lyons
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Jonathan T Paul
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - James P Foley
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Allison J Wintring
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Andrew A Furman
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Soyeon Jeong
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Chawon Yun
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Stuart R Stock
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Cell and Developmental Biology, Northwestern University, Chicago, IL
| | - Wellington K Hsu
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
| | - Erin L Hsu
- Simpson Querrey Institute (SQI), Northwestern University, Chicago, IL
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL
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Yoon H, Park Y, Kwak JG, Lee J. Collagen structures of demineralized bone paper direct mineral metabolism. JBMR Plus 2024; 8:ziae080. [PMID: 38989259 PMCID: PMC11235081 DOI: 10.1093/jbmrpl/ziae080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/28/2024] [Accepted: 06/12/2024] [Indexed: 07/12/2024] Open
Abstract
Bone is a dynamic mineralized tissue that undergoes continuous turnover throughout life. While the general mechanism of bone mineral metabolism is documented, the role of underlying collagen structures in regulating osteoblastic mineral deposition and osteoclastic mineral resorption remains an active research area, partly due to the lack of biomaterial platforms supporting accurate and analytical investigation. The recently introduced osteoid-inspired demineralized bone paper (DBP), prepared by 20-μm thin sectioning of demineralized bovine compact bone, holds promise in addressing this challenge as it preserves the intrinsic bony collagen structure and retains semi-transparency. Here, we report on the impact of collagen structures on modulating osteoblast and osteoclast-driven bone mineral metabolism using vertical and transversal DBPs that exhibit a uniaxially aligned and a concentric ring collagen structure, respectively. Translucent DBP reveals these collagen structures and facilitates longitudinal tracking of mineral deposition and resorption under brightfield microscopy for at least 3 wk. Genetically labeled primary osteogenic cells allow fluorescent monitoring of these cellular processes. Osteoblasts adhere and proliferate following the underlying collagen structures of DBPs. Osteoblastic mineral deposition is significantly higher in vertical DBP than in transversal DBP. Spatiotemporal analysis reveals notably more osteoblast adhesion and faster mineral deposition in vascular regions than in bone regions. Subsequent osteoclastic resorption follows these mineralized collagen structures, directing distinct trench and pit-type resorption patterns. In vertical DBP, trench-type resorption occurs at an 80% frequency, whereas transversal DBP shows 35% trench-type and 65% pit-type resorption. Our studies substantiate the importance of collagen structures in regulating mineral metabolism by osteogenic cells. DBP is expected to serve as an enabling biomaterial platform for studying various aspects of cellular and extracellular bone remodeling biology.
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Affiliation(s)
- Hyejin Yoon
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, United States
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, United States
| | - Yongkuk Park
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, United States
| | - Jun-Goo Kwak
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, United States
| | - Jungwoo Lee
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, United States
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, United States
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA 01003, United States
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Whitman MA, Mantri M, Spanos E, Estroff LA, De Vlaminck I, Fischbach C. Bone mineral density affects tumor growth by shaping microenvironmental heterogeneity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.19.604333. [PMID: 39091735 PMCID: PMC11291034 DOI: 10.1101/2024.07.19.604333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Breast cancer bone metastasis is the leading cause of mortality in patients with advanced breast cancer. Although decreased mineral density is a known risk factor for bone metastasis, the underlying mechanisms remain poorly understood because studying the isolated effect of bone mineral density on tumor heterogeneity is challenging with conventional approaches. Here, we investigate how bone mineral content affects tumor growth and microenvironmental complexity in vivo by combining single-cell RNA-sequencing with mineral-containing or mineral-free decellularized bone matrices. We discover that the absence of bone mineral significantly influences fibroblast and immune cell heterogeneity, promoting phenotypes that increase tumor growth and alter the response to injury or disease. Importantly, we observe that the stromal response to matrix mineral content depends on host immunocompetence and the murine tumor model used. Collectively, our findings suggest that bone mineral density affects tumor growth by altering microenvironmental complexity in an organism-dependent manner.
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Affiliation(s)
- Matthew A. Whitman
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850
| | - Madhav Mantri
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850
| | - Emmanuel Spanos
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850
| | - Lara A. Estroff
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14850
- Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY 14850
| | - Iwijn De Vlaminck
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850
| | - Claudia Fischbach
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14850
- Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY 14850
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Villarreal-Espinosa JB, Berreta RS, Boden SA, Khan ZA, Carter AJ, Cole BJ, Verma NN. Inlay Scaffold Augmentation of Rotator Cuff Repairs Enhances Histologic Resemblance to Native Enthesis in Animal Studies: A Systematic Review. Arthroscopy 2024:S0749-8063(24)00499-7. [PMID: 39029812 DOI: 10.1016/j.arthro.2024.06.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/21/2024] [Accepted: 06/25/2024] [Indexed: 07/21/2024]
Abstract
PURPOSE To investigate the outcomes of inlay positioned scaffolds for rotator cuff healing and regeneration of the native enthesis after augmentation of rotator cuff tendon repairs in preclinical studies. METHODS A literature search was performed using the PubMed, Embase, and Cumulative Index to Nursing and Allied Health Literature databases according to Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Preclinical studies reporting on outcomes after inlay tendon augmentation in rotator cuff repair were included. Preclinical study quality was assessed using an adapted version of the Gold Standard Publication Checklist for animal studies. The level of evidence was defined based on the inclusion of clinical analyses (grade A), biomechanical analyses (grade B), biochemical analyses (grade C), semiquantitative analyses (grade D), and qualitative histologic analyses (grade E). RESULTS Thirteen preclinical studies met the inclusion criteria. Quality assessment scores ranged from 4 to 8 points, and level-of-evidence grades ranged from B to E. Sheep/ewes were the main animal rotator cuff tear model used (n = 7). Demineralized bone matrix or demineralized cortical bone was the most commonly investigated scaffold (n = 6). Most of the preclinical evidence (n = 10) showed qualitative or quantitative differences regarding histologic, biomechanical, and biochemical outcomes in favor of interpositional scaffold augmentation of cuff repairs in comparison to controls. CONCLUSIONS Inlay scaffold positioning in preclinical studies has been shown to enhance the healing biology of the enthesis while providing histologic similarities to its native 4-zone configuration. CLINICAL RELEVANCE Although onlay positioned grafts and scaffolds have shown mixed results in preclinical and early clinical studies, inlay scaffolds may provide enhanced healing and structural support in comparison owing to the ability to integrate with the bone-tendon interface.
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Affiliation(s)
| | - Rodrigo Saad Berreta
- Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois, U.S.A
| | - Stephanie A Boden
- Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois, U.S.A
| | | | - Andrew J Carter
- Prince of Wales Clinical School, UNSW Medicine at the University of New South Wales, Sydney, Australia
| | - Brian J Cole
- Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois, U.S.A
| | - Nikhil N Verma
- Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois, U.S.A..
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Panahipour L, Micucci C, Gelmetti B, Gruber R. In Vitro Bioassay for Damage-Associated Molecular Patterns Arising from Injured Oral Cells. Bioengineering (Basel) 2024; 11:687. [PMID: 39061769 PMCID: PMC11273541 DOI: 10.3390/bioengineering11070687] [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: 05/29/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024] Open
Abstract
Gingival fibroblasts are a significant source of paracrine signals required to maintain periodontal homeostasis and to mediate pathological events linked to periodontitis and oral squamous cell carcinomas. Among the potential paracrine signals are stanniocalcin-1 (STC1), involved in oxidative stress and cellular survival; amphiregulin (AREG), a growth factor that mediates the cross-talk between immune cells and epithelial cells; chromosome 11 open reading frame 96 (C11orf96) with an unclear biologic function; and the inflammation-associated prostaglandin E synthase (PTGES). Gingival fibroblasts increasingly express these genes in response to bone allografts containing remnants of injured cells. Thus, the gene expression might be caused by the local release of damage-associated molecular patterns arising from injured cells. The aim of this study is consequently to use the established gene panel as a bioassay to measure the damage-associated activity of oral cell lysates. To this aim, we have exposed gingival fibroblasts to lysates prepared from the squamous carcinoma cell lines TR146 and HSC2, oral epithelial cells, and gingival fibroblasts. We report here that all lysates significantly increased the transcription of the entire gene panel, supported for STC1 at the protein level. Blocking TGF-β receptor 1 kinase with SB431542 only partially reduced the forced expression of STC1, AREG, and C11orf96. SB431542 even increased the PTGES expression. Together, these findings suggest that the damage signals originating from oral cells can change the paracrine activity of gingival fibroblasts. Moreover, the expression panel of genes can serve as a bioassay for testing the biocompatibility of materials for oral application.
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Affiliation(s)
- Layla Panahipour
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (C.M.); (B.G.)
| | - Chiara Micucci
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (C.M.); (B.G.)
| | - Benedetta Gelmetti
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (C.M.); (B.G.)
| | - Reinhard Gruber
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (C.M.); (B.G.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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Steyl SK, Jeyapalina S, Griffin A, Krishnamoorthi V, Beck JP, Agarwal J, Shea J. Efficacy of sintered Zinc-doped fluorapatite scaffold as an antimicrobial regenerative bone filler for dental applications. J Dent 2024; 146:105070. [PMID: 38740251 PMCID: PMC11180563 DOI: 10.1016/j.jdent.2024.105070] [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] [Received: 02/15/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024] Open
Abstract
OBJECTIVES The objective of this study was to assess whether zinc-doped fluorapatite (ZnFA) could serve as an effective antimicrobial dental bone filler for bone regeneration compared to autografts. METHODS FA and 2 % zinc-doped FA (2ZnFA) were synthesized and characterized in-house. Compressed and sintered FA and 2ZnFA disks were incubated with bacteria to assess antimicrobial properties. Adipose-derived stem cells were cultured on these discs to evaluate the surfaces' ability to support cell growth and promote osteogenic differentiation. Surfaces exhibiting the highest expressions of the bone markers osteopontin and osteocalcin were selected for an in vivo study in a rat mandibular defect model. Twenty rats were divided into 5 groups, equally, and a 5 mm surgical defect of the jaw was left untreated or filled with 2ZnFA, FA, autograft, or demineralized bone matrix (DBM). At 12 weeks, the defects and surrounding tissues were harvested and subjected to microCT and histological evaluations. RESULTS Standard techniques such as FTIR, ICP-MS, fluoride probe, and XRD revealed the sintered FA and ZnFA's chemical compositions and structures. Bacterial studies revealed no significant differences in surface bacterial adhesion properties between FA and 2ZnFA, but significantly fewer bacterial loads than control titanium discs (p < 0.05). Cell culture data confirmed that both surfaces could support cell growth and promote the osteogenic differentiation of stem cells. MicroCT analysis confirmed statistical similarities in bone regeneration within FA, 2ZnFA, and autograft groups. CONCLUSION The data suggests that both FA and 2ZnFA could serve as alternatives to autograft materials, which are the current gold standard. Moreover, these bone fillers outperformed DBM, an allograft material commonly used as a dental bone void filler. CLINICAL SIGNIFICANCE The use of FA or 2ZnFA for treating mandibular defects led to bone regeneration statistically similar to autograft repair and significantly outperformed the widely used dental bone filler, DBM. Additional translational research may confirm FA-based materials as superior substitutes for existing synthetic bone fillers, ultimately enhancing patient outcomes.
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Affiliation(s)
- Samantha K Steyl
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA; Division of Plastic Surgery, Department of Surgery, University of Utah School of Medicine, 30 North 1900 East, Salt Lake City, UT 84132, USA; Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Drive, Rm. 3100. Salt Lake City, UT 84112, USA
| | - Sujee Jeyapalina
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA; Division of Plastic Surgery, Department of Surgery, University of Utah School of Medicine, 30 North 1900 East, Salt Lake City, UT 84132, USA; Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Drive, Rm. 3100. Salt Lake City, UT 84112, USA
| | - Alec Griffin
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA
| | - Vishnu Krishnamoorthi
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA
| | - James Peter Beck
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA; Department of Orthopaedics, University of Utah School of Medicine, 590 Wakara Way Salt Lake City, UT 84108, USA
| | - Jay Agarwal
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA; Division of Plastic Surgery, Department of Surgery, University of Utah School of Medicine, 30 North 1900 East, Salt Lake City, UT 84132, USA
| | - Jill Shea
- Orthopaedic and Plastic Surgery Research Laboratory, George E. Wahlen Department of Veterans Affairs Medical Center, 500 Foothill Drive Salt Lake City, UT 84148, USA; Division of Plastic Surgery, Department of Surgery, University of Utah School of Medicine, 30 North 1900 East, Salt Lake City, UT 84132, USA; Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Drive, Rm. 3100. Salt Lake City, UT 84112, USA.
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Austin G, Ferguson JJA, Eslick S, Oldmeadow C, Wood LG, Garg ML. Bone mineral density and body composition in Australians following plant-based diets vs. regular meat diets. Front Nutr 2024; 11:1411003. [PMID: 38974811 PMCID: PMC11224549 DOI: 10.3389/fnut.2024.1411003] [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: 04/02/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024] Open
Abstract
Background and aims Bone mineral density (BMD) and body composition play an important role in maintaining metabolic health and physical functioning. Plant-based diets (PBDs) are known to be lower in protein and calcium, which can impact BMD and body composition. This study aimed to investigate the relationship between various PBDs compared to regular meat diet and whole-body BMD, body composition, and weight status. Methods A cross-sectional study was conducted with adults (n = 240) aged 30-75 years, who habitually followed dietary patterns: vegan, lacto-vegetarian, pesco-vegetarian, semi-vegetarian, or regular meat eater (48 per group). Parameters were measured using dual-energy x-ray absorptiometry (DXA), and multivariable regression analyses were used to adjust for lifestyle confounders, socioeconomic factors, and BMI. Results After adjustments, whole-body BMD and body composition were not significantly different between those following PBDs and regular meat diets, except for lacto-ovo vegetarians, who had significantly lower lean mass by -1.46 kg (CI: -2.78, -0.13). Moreover, lacto-ovo vegetarians had a significantly lower T-score by -0.41 SD (CI: -0.81, -0.01) compared to regular meat eaters. Waist circumference was significantly lower in individuals adhering to a PBD compared to a regular meat diet: vegans by -4.67 cm (CI: -8.10, -1.24), lacto-ovo vegetarians by -3.92 cm (CI: -6.60, -1.23), pesco-vegetarians by -3.24 cm (CI: -6.09, -0.39), and semi-vegetarians by -5.18 cm (CI: -7.79, -2.57). There were no significant differences in lean mass (%), fat mass (% and total), android/gynoid measures, body weight, or BMI across dietary patterns. All dietary patterns met the recommended dietary intake for calcium and protein, and 25-hydroxy-vitamin D status was comparable across groups. Conclusions This cross-sectional study found that adhering to a PBD characterized by varying degrees of dairy and meat restriction is not associated with meaningful changes in BMD or body composition, provided that the dietary patterns are planned appropriately with adequate levels of calcium and protein.
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Affiliation(s)
- Grace Austin
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Jessica J. A. Ferguson
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- School of Health Sciences, University of Newcastle, Callaghan, NSW, Australia
| | - Shaun Eslick
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Macquarie Medical School, Macquarie University, Macquarie Park, NSW, Australia
| | - Christopher Oldmeadow
- Clinical Research Design, Information Technology, and Statistical Support Unit, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Lisa G. Wood
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Manohar L. Garg
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
- Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Macquarie Medical School, Macquarie University, Macquarie Park, NSW, Australia
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10
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Russo A, Park DK, Lansford T, Nunley P, Peppers TA, Wind JJ, Hassanzadeh H, Sembrano J, Yoo J, Sales J. Impact of surgical risk factors for non-union on lumbar spinal fusion outcomes using cellular bone allograft at 24-months follow-up. BMC Musculoskelet Disord 2024; 25:351. [PMID: 38702654 PMCID: PMC11067233 DOI: 10.1186/s12891-024-07456-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 04/17/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND The current report investigates fusion rates and patient-reported outcomes following lumbar spinal surgery using cellular bone allograft (CBA) in patients with risk factors for non-union. METHODS A prospective, open label study was conducted in subjects undergoing lumbar spinal fusion with CBA (NCT02969616) to assess fusion success rates and patient-reported outcomes in subjects with risk factors for non-union. Subjects were categorized into low-risk (≤ 1 risk factors) and high-risk (> 1 risk factors) groups. Radiographic fusion status was evaluated by an independent review of dynamic radiographs and CT scans. Patient-reported outcome measures included quality of life (EQ-5D), Oswestry Disability Index (ODI) and Visual Analog Scales (VAS) for back and leg pain. Adverse event reporting was conducted throughout 24-months of follow-up. RESULTS A total of 274 subjects were enrolled: 140 subjects (51.1%) were categorized into the high-risk group (> 1 risk factor) and 134 subjects (48.9%) into the low-risk group (≤ 1 risk factors). The overall mean age at screening was 58.8 years (SD 12.5) with a higher distribution of females (63.1%) than males (36.9%). No statistical difference in fusion rates were observed between the low-risk (90.0%) and high-risk (93.9%) groups (p > 0.05). A statistically significant improvement in patient-reported outcomes (EQ-5D, ODI and VAS) was observed at all time points (p < 0.05) in both low and high-risk groups. The low-risk group showed enhanced improvement at multiple timepoints in EQ-5D, ODI, VAS-Back pain and VAS-Leg pain scores compared to the high-risk group (p < 0.05). The number of AEs were similar among risk groups. CONCLUSIONS This study demonstrates high fusion rates following lumbar spinal surgery using CBA, regardless of associated risk factors. Patient reported outcomes and fusion rates were not adversely affected by risk factor profiles. TRIAL REGISTRATION NCT02969616 (21/11/2016).
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Affiliation(s)
- Anthony Russo
- Yellowstone Orthopedic and Spine Institute, Billings Clinic Bozeman, 3905 Wellness Way, 4534 Apt A Perry Street, Bozeman, MT, USA.
| | - Daniel K Park
- Beaumont Hospital, 3601 W 13 Mile Rd, Royal Oak, MI, USA
| | - Todd Lansford
- South Carolina Sports Medicine, 9100 Medcom, N Charleston, SC, USA
| | - Pierce Nunley
- Spine Institute of Lousiana, 1500 Line Ave, Shreveport, LA, USA
| | - Timothy A Peppers
- Scripps Memorial Hospital Encinitas, 354 Santa Fe Drive, Encinitas, CA, USA
| | - Joshua J Wind
- Sibley Memorial Hospital, 5255 Loughboro Rd. NW, Washington, DC, USA
| | | | - Joseph Sembrano
- University of Minnesota, 909 Fulton St SE, Minneapolis, MN, USA
| | - Jung Yoo
- Oregon Health and Science University Hospital, 3303 S Bond Ave, Portland, OR, USA
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11
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Manawar S, Myrick E, Awad P, Hung V, Hinton C, Kenter K, Bovid K, Li Y. Use of allograft bone matrix in clinical orthopedics. Regen Med 2024; 19:247-256. [PMID: 39028538 PMCID: PMC11321266 DOI: 10.1080/17460751.2024.2353473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/07/2024] [Indexed: 07/20/2024] Open
Abstract
Clinical orthopedics continuously aims to improve methods for bone formation. Clinical applications where bone formation is necessary include critical long bone defects in orthopedic trauma or tumor patients. Though some biomaterials combined with autologous stem cells significantly improve bone repair, critical-size damages are still challenged with the suitable implantation of biomaterials and donor cell survival. Extracellular matrix (ECM) is the fundamental structure in tissues that can nest and nourish resident cells as well as support specific functions of the tissue type. ECM also plays a role in cell signaling to promote bone growth, healing and turnover. In the last decade, the use of bone-derived ECMs or ECM-similar biomaterials have been widely investigated, including decellularized and demineralized bone ECM. In this article, we reviewed the current productions and applications of decellularized and demineralized bone matrices. We also introduce the current study of whole limb decellularization and recellularization.
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Affiliation(s)
- Shaan Manawar
- Department of Orthopedic Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Erica Myrick
- Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Peter Awad
- Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Victor Hung
- Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Cassidy Hinton
- Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Keith Kenter
- Department of Orthopedic Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Karen Bovid
- Department of Orthopedic Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
| | - Yong Li
- Department of Orthopedic Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI49008, USA
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12
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Ren J, Zhao C, Sun R, Sun J, Lu L, Wu J, Li S, Cui L. Augmented drug resistance of osteosarcoma cells within decalcified bone matrix scaffold: The role of glutamine metabolism. Int J Cancer 2024; 154:1626-1638. [PMID: 38196144 DOI: 10.1002/ijc.34841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 11/07/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024]
Abstract
Due to the lack of a precise in vitro model that can mimic the nature microenvironment in osteosarcoma, the understanding of its resistance to chemical drugs remains limited. Here, we report a novel three-dimensional model of osteosarcoma constructed by seeding tumor cells (MG-63 and MNNG/HOS Cl no. 5) within demineralized bone matrix scaffolds. Demineralized bone matrix scaffolds retain the original components of the natural bone matrix (hydroxyapatite and collagen type I), and possess good biocompatibility allowing osteosarcoma cells to proliferate and aggregate into clusters within the pores. Growing within the scaffold conferred elevated resistance to doxorubicin on MG-63 and MNNG/HOS Cl no. 5 cell lines as compared to two-dimensional cultures. Transcriptomic analysis showed an increased enrichment for drug resistance genes along with enhanced glutamine metabolism in osteosarcoma cells in demineralized bone matrix scaffolds. Inhibition of glutamine metabolism resulted in a decrease in drug resistance of osteosarcoma, which could be restored by α-ketoglutarate supplementation. Overall, our study suggests that microenvironmental cues in demineralized bone matrix scaffolds can enhance osteosarcoma drug responses and that targeting glutamine metabolism may be a strategy for treating osteosarcoma drug resistance.
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Affiliation(s)
- Jiaxin Ren
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Cheng Zhao
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Ruizhu Sun
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Jian Sun
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Laiya Lu
- Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Jun Wu
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Shuaijun Li
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Lei Cui
- Department of Reconstructive and Regenerative Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Stem Cells and Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
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13
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Li Z, Kang M, Xu C, Chiang M, Lee CS, Lee M. Black Phosphorus-Based Dynamic Self-Healing Hydrogel to Integrate Demineralized Bone Matrix and Noggin-Targeting siRNA for Synergistic Osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38686456 DOI: 10.1021/acsami.4c01324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Although a demineralized bone matrix (DBM) is often used as an alternative to an autologous bone graft, its clinical application is still hampered by easy dispersion of DBM particles and insufficient osteoinductivity in the defect site. Herein, we designed a self-healing hydrogel for DBM that can rapidly restore its structural integrity after damage based on amino-rich black phosphorus (BP) nanosheets and aldehyde-functionalized hyaluronic acid (AHA). Given the increased expression of bone morphogenetic protein (BMP) antagonists by DBM stimulation, the osteogenic potency of DBM in the hydrogel carrier was further enhanced by abrogating the BMP antagonism. The BP/AHA hydrogel provided dynamic polymer-nanosheet networks that combine injectability, modability, and physical stability with high DBM loading, where the BP nanosheets served as osteogenic cross-linkers to promote biomineralization and deliver siRNA to suppress undesirable expression of BMP antagonist noggin by DBM. As a result, the BP/AHA hydrogel integrated with DBM and noggin-targeting siRNA synergistically promoted osteogenic differentiation of mesenchymal stem cells by enhancing BMP/Smad signaling. This work demonstrates a promising strategy to improve the efficacy of bone regeneration using bone graft.
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Affiliation(s)
- Zhi Li
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, California 90095, United States
| | - Minjee Kang
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, California 90095, United States
| | - Changlu Xu
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, California 90095, United States
| | - Michelle Chiang
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, California 90095, United States
| | - Chung-Sung Lee
- Department of Pharmaceutical Engineering, Soonchunhyang University, Asan 31538, Republic of Korea
| | - Min Lee
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
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14
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Rani KGA, Al-Rawi AM, Al Qabbani A, AlKawas S, Mohammad MG, Samsudin AR. Response of human peripheral blood monocyte-derived macrophages (PBMM) to demineralized and decellularized bovine bone graft substitutes. PLoS One 2024; 19:e0300331. [PMID: 38635511 PMCID: PMC11025794 DOI: 10.1371/journal.pone.0300331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/26/2024] [Indexed: 04/20/2024] Open
Abstract
The performance of apparently biocompatible implanted bovine bone grafts may be compromised by unresolved chronic inflammation, and poor graft incorporation leading to implant failure. Monitoring the intensity and duration of the inflammatory response caused by implanted bone grafts is crucial. In this study, the ability of demineralized (DMB) and decellularized (DCC) bovine bone substitutes in initiating inflammatory responses to peripheral blood monocyte-derived macrophages (PBMMs) was investigated. The response of PBMMs to bone substitutes was evaluated by using both direct and indirect cell culture, reactive oxygen species (ROS) generation, apoptosis, immunophenotyping, and cytokine production. Analysis of DMB and DCC substitutes using scanning electron microscope (SEM) showed a roughened surface with a size ranging between 500 and 750 μm. PBMMs treated with DMB demonstrated cell aggregation and clumping mimicking lipopolysaccharide (LPS) treated PBMMs and a higher proliferation ability (166.93%) compared to control (100%) and DCC treatments (115.64%; p<0.001) at 24h. This was associated with a significantly increased production of intracellular ROS in PBMMs exposed to DMB substitutes than control (3158.5 vs 1715.5; p<0.001) and DCC treatment (2117.5). The bone substitute exposure also caused an increase in percentage apoptosis which was significantly (p<0.0001) higher in both DMB (27.85) and DCC (29.2) treatment than control (19.383). A significant increase in proinflammatory cytokine expression (TNF-α: 3.4 folds; p<0.05) was observed in DMB substitute-treated PBMMs compared to control. Notably, IL-1β mRNA was significantly higher in DMB (21.75 folds; p<0.0001) than control and DCC (5.01 folds). In contrast, DCC substitutes exhibited immunoregulatory effects on PBMMs, as indicated by the expression for CD86, CD206, and HLDR surface markers mimicking IL-4 treatments. In conclusion, DMB excites a higher immunological response compared to DCC suggesting decellularization process of tissues dampen down inflammatory reactions when exposed to PBMM.
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Affiliation(s)
- K. G. Aghila Rani
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmed M. Al-Rawi
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Ali Al Qabbani
- Oral and Craniofacial Health Sciences Department, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Sausan AlKawas
- Oral and Craniofacial Health Sciences Department, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Mohammad G. Mohammad
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - A. R. Samsudin
- Oral and Craniofacial Health Sciences Department, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
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15
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Hosseini S, Parsaei H, Moosavifar M, Tavakoli N, Ahadi R, Roshanbinfar K. Static magnetic field enhances the bone remodelling capacity of human demineralized bone matrix in a rat animal model of cranial bone defects. J Mater Chem B 2024; 12:3774-3785. [PMID: 38535706 DOI: 10.1039/d3tb02299d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
The regeneration of bone defects that exceed 2 cm is a challenge for the human body, necessitating interventional therapies. Demineralized bone matrices (DBM) derived from biological tissues have been employed for bone regeneration and possess notable osteoinductive and osteoconductive characteristics. Nevertheless, their efficiency in regenerating critically sized injuries is limited, and therefore additional signaling cues are required. Thanks to the piezoelectric properties of the bone, external physical stimulation is shown to accelerate tissue healing. We have implanted human DBM in critically sized cranial bone defects in rat animal models and exposed them to an external magnetic field (1 T) to enhance endogenous bone formation. Our in vitro experiments showed the superior cytocompatibility of DBM compared to cell culture plates. Furthermore, alkaline phosphatase activity after 14 days and Alizarin red staining at 28 days demonstrated differentiation of rat bone marrow mesenchymal stem cells into bone lineage on DBM. Computer tomography images together with histological analyses showed that implanting DBM in the injured rats significantly enhanced bone regeneration. Notably, combining DBM transplantation with a 2 h daily exposure to a 1 T magnetic field for 2 weeks (day 7 to 21 post-surgery) significantly improved bone regeneration compared to DBM transplantation alone. This research indicates that utilizing external magnetic stimulation significantly enhances the potential of bone allografts to regenerate critically sized bone defects.
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Affiliation(s)
- SeyedJamal Hosseini
- Biomedical Engineering Department, Amirkabir University of Technology, 159163-4311, Tehran, Iran
- Cellular and Molecular Research Center, Faculty of Medicine, Iran University of Medical Sciences, 1449614535, Tehran, Iran
| | - Houman Parsaei
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, 3513138111, Semnan, Iran
| | - MirJavad Moosavifar
- Biomedical Engineering Department, Amirkabir University of Technology, 159163-4311, Tehran, Iran
- Cellular and Molecular Research Center, Faculty of Medicine, Iran University of Medical Sciences, 1449614535, Tehran, Iran
- Institut für experimentelle molekulare Bildgebung, RWTH Aachen University, Aachen 52074, Germany
| | - Narjes Tavakoli
- School of Industrial Design, College of Fine Arts, University of Tehran, 1415564583, Tehran, Iran
| | - Reza Ahadi
- Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, 1449614535, Tehran, Iran
| | - Kaveh Roshanbinfar
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91058, Germany.
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16
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Fuller J, Lefferts KS, Shah P, Cottrell JA. Methodology and Characterization of a 3D Bone Organoid Model Derived from Murine Cells. Int J Mol Sci 2024; 25:4225. [PMID: 38673812 PMCID: PMC11050018 DOI: 10.3390/ijms25084225] [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] [Received: 02/10/2024] [Revised: 03/07/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Here, we report on the development of a cost-effective, well-characterized three-dimensional (3D) model of bone homeostasis derived from commonly available stocks of immortalized murine cell lines and laboratory reagents. This 3D murine-cell-derived bone organoid model (3D-mcBOM) is adaptable to a range of contexts and can be used in conjunction with surrogates of osteoblast and osteoclast function to study cellular and molecular mechanisms that affect bone homeostasis in vitro or to augment in vivo models of physiology or disease. The 3D-mcBOM was established using a pre-osteoblast murine cell line, which was seeded into a hydrogel extracellular matrix (ECM) and differentiated into functional osteoblasts (OBs). The OBs mineralized the hydrogel ECM, leading to the deposition and consolidation of hydroxyapatite into bone-like organoids. Fourier-transform infrared (FTIR) spectroscopy confirmed that the mineralized matrix formed in the 3D-mcBOM was bone. The histological staining of 3D-mcBOM samples indicated a consistent rate of ECM mineralization. Type I collagen C-telopeptide (CTX1) analysis was used to evaluate the dynamics of OC differentiation and activity. Reliable 3D models of bone formation and homeostasis align with current ethical trends to reduce the use of animal models. This functional model of bone homeostasis provides a cost-effective model system using immortalized cell lines and easily procured supplemental compounds, which can be assessed by measuring surrogates of OB and OC function to study the effects of various stimuli in future experimental evaluations of bone homeostasis.
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Affiliation(s)
| | | | | | - Jessica A. Cottrell
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA; (J.F.); (K.S.L.); (P.S.)
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17
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Chen C, Li Z, Xu C, Kang M, Lee CS, Aghaloo T, Lee M. Self-Assembled Nanocomposite Hydrogels as Carriers for Demineralized Bone Matrix Particles and Enhanced Bone Repair. Adv Healthc Mater 2024; 13:e2303592. [PMID: 38275216 PMCID: PMC11023793 DOI: 10.1002/adhm.202303592] [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] [Received: 10/18/2023] [Revised: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Demineralized bone matrix (DBM) has been widely used as an allogeneic alternative to autologous bone graft for bone repair. However, more extensive use of DBM is limited due to its particulate nature after demineralization and rapid particle dispersion following irrigation, resulting in unpredictable osteoinductivity. Here, a new design of injectable hydrogel carriers for DBM that combine self-healing ability and osteogenic properties based on the self-assembly of guanidinylated hyaluronic acid and silica-rich nanoclays is reported. The nanoclays serve as reversible linkages to form a dynamic hydrogel network with the guanidine moieties on the polymer chains. Gelation kinetics and mechanical properties can be controlled by altering nanoclay content in the hydrogel. The resulting hydrogel exerts self-healing ability due to its dynamic crosslinks and well retains its overall performance with high DBM loading. The hydrogel exhibits great cytocompatibility and osteogenic effects mediated by the nanoclays. In vivo delivery of DBM using the nanocomposite hydrogel further demonstrates robust bone regeneration in a mouse calvarial defect model in comparison to DBM delivered with aqueous HA. This work suggests a promising hydrogel platform for many applications including therapeutic delivery and tissue engineering.
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Affiliation(s)
- Chen Chen
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
| | - Zhi Li
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
| | - Changlu Xu
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
| | - Minjee Kang
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
| | - Chung-Sung Lee
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
- Department of Pharmaceutical Engineering, Soonchunhyang University, Asan 31538, Republic of Korea
| | - Tara Aghaloo
- Division of Diagnostic and Surgical Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
| | - Min Lee
- Division of Oral and Systemic Health Sciences, School of Dentistry, University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
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18
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Ren J, Li Z, Liu W, Fan Y, Qi L, Li S, Kong C, Zou H, Liu Z. Demineralized bone matrix for repair and regeneration of maxillofacial defects: A narrative review. J Dent 2024; 143:104899. [PMID: 38428719 DOI: 10.1016/j.jdent.2024.104899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/14/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024] Open
Abstract
OBJECTIVES Demineralized bone matrix (DBM) is a well-established bone graft material widely accepted by dentists and the public for its favorable osteoconductivity and osteoinductive potential. This article aimed to provide a narrative review of the current therapeutic applications and limitations of DBM in maxillofacial bone defects. STUDY SELECTION, DATA, AND SOURCES Randomized controlled trials, prospective or retrospective clinical studies, case series and reports, and systematic reviews. MEDLINE, PubMed, and Google Scholar were searched using keywords. CONCLUSIONS Some evidence supported the therapeutic application of DBM in periodontal intrabony defects, maxillary sinus lifts, ridge preservation, ridge augmentation, alveolar cleft repair, orthognathic surgery, and other regional maxillofacial bone defects. However, the limitations of DBM should be considered when using it, including potential low immunogenicity, instability of osteoinductive potential, handling of the graft material, and patient acceptance. CLINICAL SIGNIFICANCE With the increasing demand for the treatment of maxillofacial bone defects, DBM is likely to play a greater role as a promising bone graft material. Safe and effective combination treatment strategies and how to maintain a stable osteoinductive potential will be the future challenges of DBM research.
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Affiliation(s)
- Jiwei Ren
- Hospital of Stomatology, Jilin University, China
| | - Zhiwei Li
- Hospital of Stomatology, Jilin University, China
| | - Wantong Liu
- Hospital of Stomatology, Jilin University, China
| | - Yixin Fan
- Hospital of Stomatology, Jilin University, China
| | - Le Qi
- Hospital of Stomatology, Jilin University, China
| | - Sining Li
- Hospital of Stomatology, Jilin University, China
| | - Chen Kong
- Hospital of Stomatology, Jilin University, China
| | - He Zou
- Hospital of Stomatology, Jilin University, China
| | - Zhihui Liu
- Hospital of Stomatology, Jilin University, China.
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19
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Kim YH, Kanczler JM, Lanham S, Rawlings A, Roldo M, Tozzi G, Dawson JI, Cidonio G, Oreffo ROC. Biofabrication of nanocomposite-based scaffolds containing human bone extracellular matrix for the differentiation of skeletal stem and progenitor cells. Biodes Manuf 2024; 7:121-136. [PMID: 38497056 PMCID: PMC10937808 DOI: 10.1007/s42242-023-00265-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 12/13/2023] [Indexed: 03/19/2024]
Abstract
Autograft or metal implants are routinely used in skeletal repair. However, they fail to provide long-term clinical resolution, necessitating a functional biomimetic tissue engineering alternative. The use of native human bone tissue for synthesizing a biomimetic material ink for three-dimensional (3D) bioprinting of skeletal tissue is an attractive strategy for tissue regeneration. Thus, human bone extracellular matrix (bone-ECM) offers an exciting potential for the development of an appropriate microenvironment for human bone marrow stromal cells (HBMSCs) to proliferate and differentiate along the osteogenic lineage. In this study, we engineered a novel material ink (LAB) by blending human bone-ECM (B) with nanoclay (L, Laponite®) and alginate (A) polymers using extrusion-based deposition. The inclusion of the nanofiller and polymeric material increased the rheology, printability, and drug retention properties and, critically, the preservation of HBMSCs viability upon printing. The composite of human bone-ECM-based 3D constructs containing vascular endothelial growth factor (VEGF) enhanced vascularization after implantation in an ex vivo chick chorioallantoic membrane (CAM) model. The inclusion of bone morphogenetic protein-2 (BMP-2) with the HBMSCs further enhanced vascularization and mineralization after only seven days. This study demonstrates the synergistic combination of nanoclay with biomimetic materials (alginate and bone-ECM) to support the formation of osteogenic tissue both in vitro and ex vivo and offers a promising novel 3D bioprinting approach to personalized skeletal tissue repair. Graphic abstract Supplementary Information The online version contains supplementary material available at 10.1007/s42242-023-00265-z.
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Affiliation(s)
- Yang-Hee Kim
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
| | - Janos M. Kanczler
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
| | - Stuart Lanham
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
| | - Andrew Rawlings
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
| | - Marta Roldo
- School of Pharmacy and Biomedical Science, University of Portsmouth, Portsmouth, PO1 2DT UK
| | - Gianluca Tozzi
- School of Engineering, Faculty of Engineering and Science, University of Greenwich, Greenwich, ME4 4TB UK
| | - Jonathan I. Dawson
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
| | - Gianluca Cidonio
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
- Center for Life Nano- and Neuro-Science (CLN2S), Italian Institute of Technology, 00161 Rome, Italy
| | - Richard O. C. Oreffo
- Faculty of Medicine, Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD UK
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20
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Senthil R, Çakır S. Nano apatite growth on demineralized bone matrix capped with curcumin and silver nanoparticles: Dental implant mechanical stability and optimal cell growth analysis. J Oral Biosci 2024; 66:232-240. [PMID: 38110178 DOI: 10.1016/j.job.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
OBJECTIVES The prevention of implant-associated infections is becoming increasingly clinically important in the field of dentistry. Extensive investigations into the development of innovative antibacterial materials that interact effectively to reinforce their functionality are currently being conducted in the biomedical sector. In the present study, a novel dental nano putty (D-nP) has been developed using demineralized bone matrix (DBM), calcium sulfate hemihydrate (CSH), curcumin nanoparticles (CU-NPs), and silver nanoparticles (AgNPs). METHODS The produced D-nP was evaluated using physicochemical, mechanical, and in vitro analyses. Surface characterization, particularly the analysis of calcium and phosphorus content, was performed before and after immersion in the simulated body fluid (SBF). In addition, the impact of surface treatment on biological activity was studied. RESULTS The results showed that the mechanical properties of the D-nP were outstanding and its performance is promising. D-nP exhibited excellent antibacterial activity against Actinomyces naeslundii (5.22 ± 0.07 mm) and Streptococcus oralis (5.41 ± 0.1 mm). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay was conducted using MG-63 osteoblast cells, which exhibited 95 % viability in D-nP. CONCLUSIONS Based on these characterization results, the D-nP developed in this study exhibited excellent performance for tooth tissue in bone repair.
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Affiliation(s)
- Rethinam Senthil
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 600 077, Tamilnadu, India.
| | - Sinem Çakır
- Department of Chemistry, Ege University, 35100 Bornova-Izmir, Turkey
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21
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Golebiowska AA, Intravaia JT, Sathe VM, Kumbar SG, Nukavarapu SP. Decellularized extracellular matrix biomaterials for regenerative therapies: Advances, challenges and clinical prospects. Bioact Mater 2024; 32:98-123. [PMID: 37927899 PMCID: PMC10622743 DOI: 10.1016/j.bioactmat.2023.09.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 11/07/2023] Open
Abstract
Tissue engineering and regenerative medicine have shown potential in the repair and regeneration of tissues and organs via the use of engineered biomaterials and scaffolds. However, current constructs face limitations in replicating the intricate native microenvironment and achieving optimal regenerative capacity and functional recovery. To address these challenges, the utilization of decellularized tissues and cell-derived extracellular matrix (ECM) has emerged as a promising approach. These biocompatible and bioactive biomaterials can be engineered into porous scaffolds and grafts that mimic the structural and compositional aspects of the native tissue or organ microenvironment, both in vitro and in vivo. Bioactive dECM materials provide a unique tissue-specific microenvironment that can regulate and guide cellular processes, thereby enhancing regenerative therapies. In this review, we explore the emerging frontiers of decellularized tissue-derived and cell-derived biomaterials and bio-inks in the field of tissue engineering and regenerative medicine. We discuss the need for further improvements in decellularization methods and techniques to retain structural, biological, and physicochemical characteristics of the dECM products in a way to mimic native tissues and organs. This article underscores the potential of dECM biomaterials to stimulate in situ tissue repair through chemotactic effects for the development of growth factor and cell-free tissue engineering strategies. The article also identifies the challenges and opportunities in developing sterilization and preservation methods applicable for decellularized biomaterials and grafts and their translation into clinical products.
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Affiliation(s)
| | - Jonathon T. Intravaia
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Vinayak M. Sathe
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, 06032, USA
| | - Sangamesh G. Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Department of Materials Science & Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, 06032, USA
| | - Syam P. Nukavarapu
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Department of Materials Science & Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT, 06032, USA
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22
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Zhao D, Saiding Q, Li Y, Tang Y, Cui W. Bone Organoids: Recent Advances and Future Challenges. Adv Healthc Mater 2024; 13:e2302088. [PMID: 38079529 DOI: 10.1002/adhm.202302088] [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] [Received: 07/04/2023] [Revised: 11/23/2023] [Indexed: 12/21/2023]
Abstract
Bone defects stemming from tumorous growths, traumatic events, and diverse conditions present a profound conundrum in clinical practice and research. While bone has the inherent ability to regenerate, substantial bone anomalies require bone regeneration techniques. Bone organoids represent a new concept in this field, involving the 3D self-assembly of bone-associated stem cells guided in vitro with or without extracellular matrix material, resulting in a tissue that mimics the structural, functional, and genetic properties of native bone tissue. Within the scientific panorama, bone organoids ascend to an esteemed status, securing significant experimental endorsement. Through a synthesis of current literature and pioneering studies, this review offers a comprehensive survey of the bone organoid paradigm, delves into the quintessential architecture and ontogeny of bone, and highlights the latest progress in bone organoid fabrication. Further, existing challenges and prospective directions for future research are identified, advocating for interdisciplinary collaboration to fully harness the potential of this burgeoning domain. Conclusively, as bone organoid technology continues to mature, its implications for both clinical and research landscapes are poised to be profound.
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Affiliation(s)
- Ding Zhao
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Qimanguli Saiding
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yihan Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yunkai Tang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
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23
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Xu H, Liao H, Liu X, Miller AL, Elder BD, Lu L. Spinal fusion of biodegradable poly(propylene fumarate) and poly(propylene fumarate-co-caprolactone) copolymers in rabbits. J Orthop 2024; 48:52-59. [PMID: 38077473 PMCID: PMC10700862 DOI: 10.1016/j.jor.2023.10.023] [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: 09/05/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 02/12/2024] Open
Abstract
Background Autologous bone grafts are currently the standard in orthopedic surgery despite limited donor sources and the prevalence of donor site morbidity. Other alternatives such as allografts are more readily available than autografts but have lower rates of graft incorporation. Methods Here, we propose a novel graft alternative consisting of an injectable poly(propylene fumarate) (PPF) and poly(propylene fumarate-co-caprolactone) P(PF-co-CL) copolymer with a recombinant human bone morphogenetic protein-2 (rhBMP-2)/vascular epithelial growth factor (VEGF) release system accompanied by hydroxyapatite (HA). The efficacy of scaffold formulations was studied using a standard, bilateral, L-level (L5-L6) posterolateral transverse spinal fusion using New Zealand white rabbits. Rabbits were divided into 4 experimental groups: group I, negative control; group II, autograft (positive control); group III, injectable PPF scaffold with rhBMP-2/VEGF release system and HA; group IV, injectable P(PF-co-CL)scaffold with rhBMP-2/VEGF release system and HA. Spines were harvested at 6 weeks and 12 weeks after surgery, and spinal fusions were assessed using manual palpation, radiographic analysis, micro-computed tomography (μCT) assessment, and histologic analysis. Results Of the 4 experimental groups, the injectable P(PF-co-CL) scaffold displayed superior initial strength and faster degradation than scaffolds constructed from PPF alone and facilitated the fusion of lateral processes in the rabbit standard posterolateral spinal fusion model. The results obtained from manual palpation, radiology, and μCT showed no difference between the P(PF-co-CL) group and the PPF group. However, histologic sections showed more osteogenesis with the new injectable P(PF-co-CL) scaffold. Conclusion Injectable P(PF-co-CL) polymers showed promising spine fusion abilities in rabbits after 12 weeks of posterolateral implantation.
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Affiliation(s)
- Hao Xu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hui Liao
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - A. Lee Miller
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Benjamin D. Elder
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA
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24
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Li Y, Zhang H, Zhu D, Yang F, Wang Z, Wei Z, Yang Z, Jia J, Kang X. Notochordal cells: A potential therapeutic option for intervertebral disc degeneration. Cell Prolif 2024; 57:e13541. [PMID: 37697480 PMCID: PMC10849793 DOI: 10.1111/cpr.13541] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 09/13/2023] Open
Abstract
Intervertebral disc degeneration (IDD) is a prevalent musculoskeletal degenerative disorder worldwide, and ~40% of chronic low back pain cases are associated with IDD. Although the pathogenesis of IDD remains unclear, the reduction in nucleus pulposus cells (NPCs) and degradation of the extracellular matrix (ECM) are critical factors contributing to IDD. Notochordal cells (NCs), derived from the notochord, which rapidly degrades after birth and is eventually replaced by NPCs, play a crucial role in maintaining ECM homeostasis and preventing NPCs apoptosis. Current treatments for IDD only provide symptomatic relief, while lacking the ability to inhibit or reverse its progression. However, NCs and their secretions possess anti-inflammatory properties and promote NPCs proliferation, leading to ECM formation. Therefore, in recent years, NCs therapy targeting the underlying cause of IDD has emerged as a novel treatment strategy. This article provides a comprehensive review of the latest research progress on NCs for IDD, covering their biological characteristics, specific markers, possible mechanisms involved in IDD and therapeutic effects. It also highlights significant future directions in this field to facilitate further exploration of the pathogenesis of IDD and the development of new therapies based on NCs strategies.
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Affiliation(s)
- Yanhu Li
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Haijun Zhang
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
- The Second People's Hospital of Gansu ProvinceLanzhouPeople's Republic of China
| | - Daxue Zhu
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Fengguang Yang
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Zhaoheng Wang
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Ziyan Wei
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Zhili Yang
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Jingwen Jia
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
| | - Xuewen Kang
- Lanzhou University Second HospitalLanzhouPeople's Republic of China
- Orthopaedics Key Laboratory of Gansu ProvinceLanzhouPeople's Republic of China
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25
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Wagner J, Luck S, Loger K, Açil Y, Spille JH, Kurz S, Ahlhelm M, Schwarzer-Fischer E, Ingwersen LC, Jonitz-Heincke A, Sedaghat S, Wiltfang J, Naujokat H. Bone regeneration in critical-size defects of the mandible using biomechanically adapted CAD/CAM hybrid scaffolds: An in vivo study in miniature pigs. J Craniomaxillofac Surg 2024; 52:127-135. [PMID: 38129185 DOI: 10.1016/j.jcms.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
The study aimed to analyze bone regeneration in critical-size defects using hybrid scaffolds biomechanically adapted to the specific defect and adding the growth factor rhBMP-2. For this animal study, ten minipigs underwent bilateral defects in the corpus mandibulae and were subsequently treated with novel cylindrical hybrid scaffolds. These scaffolds were designed digitally to suit the biomechanical requirements of the mandibular defect, utilizing finite element analysis. The scaffolds comprised zirconium dioxide-tricalcium phosphate (ZrO2-TCP) support struts and TCP foam ceramics. One scaffold in each animal was loaded with rhBMP-2 (100 μg/cm³), while the other served as an unloaded negative control. Fluorescent dyes were administered every 2 weeks, and computed tomography (CT) scans were conducted every 4 weeks. Euthanasia was performed after 3 months, and samples were collected for examination using micro-CT and histological evaluation of both hard and soft tissue. Intravital CT examinations revealed minor changes in radiographic density from 4 to 12 weeks postoperatively. In the group treated with rhBMP-2, radiographic density shifted from 2513 ± 128 (mean ± SD) to 2606 ± 115 Hounsfield units (HU), while the group without rhBMP-2 showed a change from 2430 ± 131 to 2601 ± 67 HU. Prior to implantation, the radiological density of samples measured 1508 ± 30 mg HA/cm³, whereas post-mortem densities were 1346 ± 71 mg HA/cm³ in the rhBMP-2 group and 1282 ± 91 mg HA/cm³ in the control group (p = 0.045), as indicated by micro-CT measurements. The histological assessment demonstrated successful ossification in all specimens. The newly formed bone area proportion was significantly greater in the rhBMP-2 group (48 ± 10%) compared with the control group without rhBMP-2 (42 ± 9%, p = 0.03). The mean area proportion of remaining TCP foam was 23 ± 8% with rhBMP-2 and 24 ± 10% without rhBMP-2. Successful bone regeneration was accomplished by implanting hybrid scaffolds into critical-size mandibular defects. Loading these scaffolds with rhBMP-2 led to enhanced bone regeneration and a uniform distribution of new bone formation within the hybrid scaffolds. Further studies are required to determine the adaptability of hybrid scaffolds for larger and potentially segmental defects in the maxillofacial region.
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Affiliation(s)
- Juliane Wagner
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany; Cluster of Excellence, Precision Medicine in Inflammation, Christian-Albrechts-University of Kiel, Kiel, Germany.
| | - Sascha Luck
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Klaas Loger
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Yahya Açil
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Johannes H Spille
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Sascha Kurz
- ZESBO - Center for Research on Musculoskeletal Systems, Leipzig University, Leipzig, Germany
| | - Matthias Ahlhelm
- Fraunhofer Institute for Ceramic Technologies and Systems, IKTS, Dresden, Germany
| | | | - Lena-Christin Ingwersen
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
| | - Anika Jonitz-Heincke
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
| | - Sam Sedaghat
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Hendrik Naujokat
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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26
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Ma T, Ren D, Wang J, Fu F, Sun WQ, Sun H. Enhanced osteogenicity of the demineralized bone-dermal matrix composite by the optimal partial demineralization for sustained release of bioactive molecules. J Biomed Mater Res B Appl Biomater 2024; 112:e35358. [PMID: 38247243 DOI: 10.1002/jbm.b.35358] [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] [Received: 08/16/2023] [Revised: 11/16/2023] [Accepted: 11/24/2023] [Indexed: 01/23/2024]
Abstract
Allogenic demineralized bone matrix (DBM), processed to expose bioactive proteins imbedded by calcium salts, is widely used for bone repair and regeneration as an alternative to the autologous bone graft. However, demineralized bone matrices from tissue banks vary significantly in residual calcium content and osteogenicity for clinical bone regeneration. The present study produced DBM with various residual calcium contents by partial demineralization using ethylenediaminetetraacetic acid disodium (EDTA) and hydrochloric acid. Compositional analysis reveals that, as the percent weight loss of bone materials increases from 0% to 74.9% during demineralization, the residual calcium content of DBM decreases from 24.8% to 0.2% and collagen content increases from 29.7% to 92.6%. Calorimetrical analysis and Fourier transform infrared (FTIR) analysis demonstrated that demineralization to the residual calcium content of <4% enables the complete exposure and/or release of bone collagen fibers and other bioactive molecules. In order to evaluate the relationship between the extent of demineralization and the osteogenicity of DBM, DBM particles were fabricated with the aid of acellular dermal matrix (ADM) microfibers to form flexible foam-like DBM/ADM composites. Proteomic analysis identified various type collagens and bone formation-related bioactive molecules in both ADM and DBM. Using the rat bilateral Φ = 5 mm calvarium defect repair model, the study had shown that the DBM/ADM composite with ~20% DBM residual calcium (e.g., ~40% calcium being removed) maximized the osteogenicity for bone defect repair after 4 and 8 weeks. DBM with ~40% calcium removal had the maximal osteogenicity presumably through the sustained release of bioactive molecules during the process of bone regeneration.
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Affiliation(s)
- Tong Ma
- Institute of Biothermal Science and Technology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Dangli Ren
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Neurotrauma Repair, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, China
| | - Jingjing Wang
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Neurotrauma Repair, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, China
| | - Feng Fu
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Neurotrauma Repair, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, China
| | - Wendell Q Sun
- Institute of Biothermal Science and Technology, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Hongtao Sun
- Tianjin Key Laboratory of Neurotrauma Repair, Institute of Neurotrauma Repair, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, China
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- First Clinical Medical College of Lanzhou University, Lanzhou, China
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27
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Wang JL, Eaton RG, Harrigan ME, Munjal V, Sette KN, Wilson SB, Grossbach AJ. Demineralized Bone Matrix and Fibers in Spinal Fusion. Int J Spine Surg 2023; 17:S28-S34. [PMID: 38135444 PMCID: PMC10753352 DOI: 10.14444/8558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 09/11/2023] [Indexed: 12/24/2023] Open
Abstract
Formation of bony fusion after arthrodesis depends on osteoinduction, osteoconduction, and osteogenesis. Traditionally, the patient's own bone, or autograft, has been used to provide biological material necessary for these steps. However, the amount of autograft obtainable is often inadequate. Modern spine surgery has adopted the use of many autograft extenders or replacements, such as demineralized bone matrix or fibers. The present article covers the history of bone grafting, the production and technical details of demineralized bone matrix, and the evidence supporting its use in spine fusions.
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Affiliation(s)
- Joshua L Wang
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Ryan G Eaton
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Markus E Harrigan
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Vikas Munjal
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Katelyn N Sette
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Seth B Wilson
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Andrew J Grossbach
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
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28
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Kim E, Brennan M, Margabandu P, Oska N, Cielito Robles M, Rademacher A, Telemi E, Mansour T, Chang VW. Bone Grafting Options for Single-Level TLIF: So Many Options, What Is the Evidence? Int J Spine Surg 2023; 17:S53-S60. [PMID: 38124018 PMCID: PMC10753332 DOI: 10.14444/8561] [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: 06/09/2023] [Revised: 09/08/2023] [Accepted: 10/31/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND This review seeks to investigate the clinically relevant bone graft materials in single-level transforaminal lumbar interbody fusion (TLIF) procedures as defined by (1) primary outcomes (ie, fusion rates and complication rates) and (2) patient-reported outcomes (ie, visual analog scale [VAS] and Oswestry disability index [ODI]). Because of the advantages in stimulating bone growth, autologous bone grafts such as the iliac crest bone graft (ICBG) have been the gold standard. Numerous alternatives to ICBG have been introduced. Understanding the risks and benefits of bone graft options is vital to optimizing patient care. METHODS A PubMed search was performed for all clinical studies published between January 2008 and March 2023 that referenced the single-level TLIF procedure as well as one of the following grafts: autograft, allograft, bone morphogenetic protein (BMP), demineralized bone matrix, or mesenchymal stem cells (MSCs). Case studies and reports were excluded. RESULTS Twenty-eight studies met the inclusion criteria. Studies from the PubMed search demonstrated similarly high fusion rates across nearly all graft materials, the lone exception being MSCs, which showed lower fusion rates. ICBG grafts experienced higher rates of postoperative graft site pain. The BMP graft material had high rates of radiculitis, heterogeneous ossification, and vertebral osteolysis. Patients saw an overall improvement in VAS and ODI scores with all graft materials. CONCLUSION Local autografts and ICBG have been the most studied. Fusion rates during single-level TLIF were similar across all graft materials except MSCs. Patient-reported pain levels improved after TLIF surgery regardless of the type of grafts used. While BMP implants have shown promising benefits, they have introduced a new array of complications not normally seen in ICBG implants. The study is limited by the lack of evidence of certain graft materials as well as nonuniformity in metrics evaluating the efficacy of graft materials.
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Affiliation(s)
- Enoch Kim
- School of Medicine, Wayne State University, Detroit, MI, USA
| | - Matthew Brennan
- School of Medicine, Wayne State University, Detroit, MI, USA
| | | | - Nicole Oska
- School of Medicine, Wayne State University, Detroit, MI, USA
| | | | | | - Edvin Telemi
- Department of Neurosurgery, Henry Ford Health Systems, Detroit, MI, USA
| | - Tarek Mansour
- Department of Neurosurgery, Henry Ford Health Systems, Detroit, MI, USA
| | - Victor W Chang
- Department of Neurosurgery, Henry Ford Health Systems, Detroit, MI, USA
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29
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Issabekova A, Kudaibergen G, Sekenova A, Dairov A, Sarsenova M, Mukhlis S, Temirzhan A, Baidarbekov M, Eskendirova S, Ogay V. The Therapeutic Potential of Pericytes in Bone Tissue Regeneration. Biomedicines 2023; 12:21. [PMID: 38275382 PMCID: PMC10813325 DOI: 10.3390/biomedicines12010021] [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: 10/31/2023] [Revised: 12/09/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
Pericytes, as perivascular cells, are present in all vascularized organs and tissues, and they actively interact with endothelial cells in capillaries and microvessels. Their involvement includes functions like blood pressure regulation, tissue regeneration, and scarring. Studies have confirmed that pericytes play a crucial role in bone tissue regeneration through direct osteodifferentiation processes, paracrine actions, and vascularization. Recent preclinical and clinical experiments have shown that combining perivascular cells with osteogenic factors and tissue-engineered scaffolds can be therapeutically effective in restoring bone defects. This approach holds promise for addressing bone-related medical conditions. In this review, we have emphasized the characteristics of pericytes and their involvement in angiogenesis and osteogenesis. Furthermore, we have explored recent advancements in the use of pericytes in preclinical and clinical investigations, indicating their potential as a therapeutic resource in clinical applications.
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Affiliation(s)
- Assel Issabekova
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Gulshakhar Kudaibergen
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Aliya Sekenova
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Aidar Dairov
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Madina Sarsenova
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Sholpan Mukhlis
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Abay Temirzhan
- National Scientific Center of Traumatology and Orthopedics Named after Academician N.D. Batpenov, Astana 010000, Kazakhstan; (A.T.); (M.B.)
| | - Murat Baidarbekov
- National Scientific Center of Traumatology and Orthopedics Named after Academician N.D. Batpenov, Astana 010000, Kazakhstan; (A.T.); (M.B.)
| | - Saule Eskendirova
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
| | - Vyacheslav Ogay
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan; (A.I.); (G.K.); (A.S.); (A.D.); (M.S.); (S.M.); (S.E.)
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Zhou L, Wang J, Mu W. BMP-2 promotes fracture healing by facilitating osteoblast differentiation and bone defect osteogenesis. Am J Transl Res 2023; 15:6751-6759. [PMID: 38187002 PMCID: PMC10767540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 11/28/2023] [Indexed: 01/09/2024]
Abstract
OBJECTIVE To investigate the role of bone morphogenetic protein-2 (BMP-2) in promoting fracture healing in animal models. METHODS Mouse models with muscle bag heterotopic osteogenesis (HO) were divided into a HO control group (not implanted with 250 μg rhBMP-2 bone repairing material), and a HO observation group (implanted with 250 μg rhBMP-2 bone repairing material); while rat models with bone defect (BD) were divided into a BD control group (not implanted with 250 μg rhBMP-2 bone repairing material) and a BD observation group (implanted with 250 μg rhBMP-2 bone repairing material). At 4 weeks after HO establishment, the new bone formation at the operation site was observed through visual inspections and X-ray scanning. The content of serum alkaline phosphatase (ALP) was detected by automatic biochemical analyzer. The formation of new bone at the operative sites was observed by Hematoxylin and eosin staining and Masson staining. At 0, 2, 4 and 8 weeks after operation, the growth of the defect area and its surrounding callus were observed by X-ray scanning. At 4 and 8 weeks after bone defect establishment in the mouse models, the histological changes and osteogenesis of the bone defect site were observed. RESULTS The heterotopic osteogenesis experiment showed that at 4 weeks after operation, the mass at the muscle bag in the HO observation group became larger in contrast to the HO control group. X-ray scanning showed that there was obvious irregular bone shadow at the back muscle bag of mice from the HO observation group. The content of serum ALP in the HO observation group was significantly higher than that in the HO control group (all P<0.05). The muscle pocket in the HO observation group showed higher ectopic osteogenic activity comparing with the HO control group. Histological staining showed that bone tissue structure was visible in the newly regenerated bone, forming bone trabeculae and bone marrow tissue. Under the microscope, a large number of osteoblasts arranged neatly in a cubic shape presented at the edge of the new bone, and there were bone lacunae formed, and the bone tissue was in a relatively mature stage. In the rat bone defect models, X-ray scanning showed that the high-density development area was further increased. There was a large amount of callus formation in the bone defect area of the BD observation group, while the BD control group still had no high-density development. At 8 weeks after operation, the high-density development area decreased, indicating that there was partial absorption of callus, while there was still no high-density development in the BD control group. The callus of the bone defect area in the BD observation group was reduced and the defect area was gradually repaired, while the bone defect in the BD control group was still obvious and the bone repair was not completed. CONCLUSIONS BMP-2 could promote osteoblast differentiation and bone defect osteogenesis in vivo. Thus, it is worthy of clinical application.
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Affiliation(s)
- Lei Zhou
- Department of Orthopaedics, Shandong Provincial Hospital, Shandong UniversityJinan, Shandong, China
- Department of Orthopaedics, The Second Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Jianqiang Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Weidong Mu
- Department of Orthopaedics, Shandong Provincial Hospital, Shandong UniversityJinan, Shandong, China
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Ji SL, Zhao XD, Wang LM, Pang CG, Li WJ, Song KX, Ma RX, Li RF, Zhang JY, Hu YC. Comparison of demineralized bone matrix with different cycling crushing times in posterolateral fusion model of athymic rats. Cell Tissue Bank 2023; 24:747-758. [PMID: 37133795 DOI: 10.1007/s10561-023-10086-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/26/2023] [Indexed: 05/04/2023]
Abstract
Decalcified bone matrix (DBM) is a widely used alternative material for bone transplantation. In the DBM production process, an effective particle size and the highest utilization rate of raw materials can be achieved only through multiple high-speed circulating comminution. The rat posterolateral lumbar fusion model (PLF) is the most mature small animal model for the initial evaluation of the efficacy of graft materials for bone regeneration and spinal fusion. To evaluate the differences in the in vivo osteogenic effects of DBM pulverization through 1, 5, 9, and 14 high-speed cycles, sixty athymic rats were divided into six groups: single cycling crushing (CC1), 5 cycles of crushing (CC5), 9 cycles of crushing (CC9), 13 cycles of crushing (CC13), autogenous bone graft (ABG) and negative control (NC). Posterolateral lumbar fusion was performed. Six weeks after surgery, the bilateral lumbar fusion of athymic rats was evaluated through manual palpation, X-ray, micro-CT and histological sections. Rank data were tested by the rank-sum test, and nonparametric data were tested by the Kruskal‒Wallis H test. The manual palpation and X-ray results showed that the fusion rate did not significantly differ between the CC1, CC5, CC9, CC13 and ABG groups. However, cavities appeared in CC9 and CC13 on the micro-CT image. The bone mass (BV/TV) of CC1, CC5, CC9 and CC13 was better than that of the ABG group, while almost no osteogenesis was observed in the NC group. Histologically, there was no obvious difference between the four groups except that the CC9 group and CC13 group had more fibrous tissues in the new bone. In conclusion, DMB with different cycling crushing times has no obvious difference in fusion rate of PLF, but it is slightly better than the ABG group.
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Affiliation(s)
- Shao-Lin Ji
- Tianjin Medical University, Tianjin, China
- Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Xiao-Dan Zhao
- Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Li-Min Wang
- Beijing wonderful medical biomaterial Co., Ltd, Beijing, China
| | - Cheng-Gang Pang
- Department of Trauma, Zoucheng People's Hospital, Zoucheng, China
| | - Wen-Jing Li
- Beijing wonderful medical biomaterial Co., Ltd, Beijing, China
| | - Kun-Xiu Song
- Department of Hand Surgery, BinZhou medical university hospital, Binzhou, China
| | | | | | - Jing-Yu Zhang
- Department of Bone Tumor and Soft Tissue Oncology, Tianjin Hospital, 406 Jiefang Southern Road, Tianjin, 300211, China.
| | - Yong-Cheng Hu
- Department of Bone Tumor and Soft Tissue Oncology, Tianjin Hospital, 406 Jiefang Southern Road, Tianjin, 300211, China.
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Masihipour S, Sabiza S, Rezaie A, Ghaderi Ghahfarokhi M. Histopathological Evaluation of Eggshell and DBM Combination on the Repair of Critical Size Experimental Calvarial Bone Defects in Rats. ARCHIVES OF RAZI INSTITUTE 2023; 78:1709-1718. [PMID: 38828168 PMCID: PMC11139394 DOI: 10.32592/ari.2023.78.6.1709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 05/27/2023] [Indexed: 06/05/2024]
Abstract
Fracture repair is a constant clinical challenge, and finding a method to promote and improve restoration is a primary goal for researchers. This is examined from various perspectives, such as fewer complications, increased speed, and cost-effectiveness. The present study aimed to investigate the effectiveness of eggshell powder, compared to the commercial form of demineralized bone matrix (DBM), in critical-size defects in rat calvarial bone. In this study, 40 adult male Wistar rats were selected and randomly divided into four groups of 10. The first group was the control group (C), the second was the eggshell powder group (E), the third was the DBM group (D), and the fourth was the one simultaneously receiving eggshell powder and DBM (DE). In these groups, a 5 mm diameter defect was created in the calvaria using a trephine. All animals received the appropriate treatment for their group. Each group was then divided into two subgroups of five. On days 30 and 60 post-surgery, these subgroups were euthanized, followed by sampling and histopathology examinations. After evaluating the repair percentage using Quick Photo software, the DE group had the highest repair percentage on days 30 and 60. Groups E and D had similar recovery percentages, with group D having a slightly higher one. There was a significant difference between all three groups and the control group. In conclusion, eggshell powder may potentially serve as a suitable substitute for some transplants.
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Affiliation(s)
- S Masihipour
- DVM Graduate, Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - S Sabiza
- Assistant Professor, Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - A Rezaie
- Associate Professor, Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - M Ghaderi Ghahfarokhi
- Assistant Professor, Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Panahipour L, Abbasabadi AO, Wagner A, Kratochwill K, Pichler M, Gruber R. Bone Allograft Acid Lysates Change the Genetic Signature of Gingival Fibroblasts. Int J Mol Sci 2023; 24:16181. [PMID: 38003371 PMCID: PMC10671348 DOI: 10.3390/ijms242216181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Bone allografts are widely used as osteoconductive support to guide bone regrowth. Bone allografts are more than a scaffold for the immigrating cells as they maintain some bioactivity of the original bone matrix. Yet, it remains unclear how immigrating cells respond to bone allografts. To this end, we have evaluated the response of mesenchymal cells exposed to acid lysates of bone allografts (ALBA). RNAseq revealed that ALBA has a strong impact on the genetic signature of gingival fibroblasts, indicated by the increased expression of IL11, AREG, C11orf96, STC1, and GK-as confirmed by RT-PCR, and for IL11 and STC1 by immunoassays. Considering that transforming growth factor-β (TGF-β) is stored in the bone matrix and may have caused the expression changes, we performed a proteomics analysis, TGF-β immunoassay, and smad2/3 nuclear translocation. ALBA neither showed detectable TGF-β nor was the lysate able to induce smad2/3 translocation. Nevertheless, the TGF-β receptor type I kinase inhibitor SB431542 significantly decreased the expression of IL11, AREG, and C11orf96, suggesting that other agonists than TGF-β are responsible for the robust cell response. The findings suggest that IL11, AREG, and C11orf96 expression in mesenchymal cells can serve as a bioassay reflecting the bioactivity of the bone allografts.
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Affiliation(s)
- Layla Panahipour
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (A.O.A.)
| | - Azarakhsh Oladzad Abbasabadi
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (A.O.A.)
| | - Anja Wagner
- Core Facility Proteomics, Medical University of Vienna, 1090 Vienna, Austria; (A.W.); (K.K.)
- Christian Doppler Laboratory for Molecular Stress Research in Peritoneal Dialysis, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Division of Pediatric Nephrology and Gastroenterology, Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
| | - Klaus Kratochwill
- Core Facility Proteomics, Medical University of Vienna, 1090 Vienna, Austria; (A.W.); (K.K.)
- Christian Doppler Laboratory for Molecular Stress Research in Peritoneal Dialysis, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Division of Pediatric Nephrology and Gastroenterology, Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
| | | | - Reinhard Gruber
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (L.P.); (A.O.A.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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Ball JR, Shelby T, Hernandez F, Mayfield CK, Lieberman JR. Delivery of Growth Factors to Enhance Bone Repair. Bioengineering (Basel) 2023; 10:1252. [PMID: 38002376 PMCID: PMC10669014 DOI: 10.3390/bioengineering10111252] [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: 09/15/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
The management of critical-sized bone defects caused by nonunion, trauma, infection, malignancy, pseudoarthrosis, and osteolysis poses complex reconstruction challenges for orthopedic surgeons. Current treatment modalities, including autograft, allograft, and distraction osteogenesis, are insufficient for the diverse range of pathology encountered in clinical practice, with significant complications associated with each. Therefore, there is significant interest in the development of delivery vehicles for growth factors to aid in bone repair in these settings. This article reviews innovative strategies for the management of critical-sized bone loss, including novel scaffolds designed for controlled release of rhBMP, bioengineered extracellular vesicles for delivery of intracellular signaling molecules, and advances in regional gene therapy for sustained signaling strategies. Improvement in the delivery of growth factors to areas of significant bone loss has the potential to revolutionize current treatment for this complex clinical challenge.
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Affiliation(s)
- Jacob R. Ball
- Department of Orthopaedic Surgery, University of Southern California Keck School of Medicine, 1500 San Pablo St., Los Angeles, CA 90033, USA
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Hogan KJ, Öztatlı H, Perez MR, Si S, Umurhan R, Jui E, Wang Z, Jiang EY, Han SR, Diba M, Jane Grande-Allen K, Garipcan B, Mikos AG. Development of photoreactive demineralized bone matrix 3D printing colloidal inks for bone tissue engineering. Regen Biomater 2023; 10:rbad090. [PMID: 37954896 PMCID: PMC10634525 DOI: 10.1093/rb/rbad090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 11/14/2023] Open
Abstract
Demineralized bone matrix (DBM) has been widely used clinically for dental, craniofacial and skeletal bone repair, as an osteoinductive and osteoconductive material. 3D printing (3DP) enables the creation of bone tissue engineering scaffolds with complex geometries and porosity. Photoreactive methacryloylated gelatin nanoparticles (GNP-MAs) 3DP inks have been developed, which display gel-like behavior for high print fidelity and are capable of post-printing photocrosslinking for control of scaffold swelling and degradation. Here, novel DBM nanoparticles (DBM-NPs, ∼400 nm) were fabricated and characterized prior to incorporation in 3DP inks. The objectives of this study were to determine how these DBM-NPs would influence the printability of composite colloidal 3DP inks, assess the impact of ultraviolet (UV) crosslinking on 3DP scaffold swelling and degradation and evaluate the osteogenic potential of DBM-NP-containing composite colloidal scaffolds. The addition of methacryloylated DBM-NPs (DBM-NP-MAs) to composite colloidal inks (100:0, 95:5 and 75:25 GNP-MA:DBM-NP-MA) did not significantly impact the rheological properties associated with printability, such as viscosity and shear recovery or photocrosslinking. UV crosslinking with a UV dosage of 3 J/cm2 directly impacted the rate of 3DP scaffold swelling for all GNP-MA:DBM-NP-MA ratios with an ∼40% greater increase in scaffold area and pore area in uncrosslinked versus photocrosslinked scaffolds over 21 days in phosphate-buffered saline (PBS). Likewise, degradation (hydrolytic and enzymatic) over 21 days for all DBM-NP-MA content groups was significantly decreased, ∼45% less in PBS and collagenase-containing PBS, in UV-crosslinked versus uncrosslinked groups. The incorporation of DBM-NP-MAs into scaffolds decreased mass loss compared to GNP-MA-only scaffolds during collagenase degradation. An in vitro osteogenic study with bone marrow-derived mesenchymal stem cells demonstrated osteoconductive properties of 3DP scaffolds for the DBM-NP-MA contents examined. The creation of photoreactive DBM-NP-MAs and their application in 3DP provide a platform for the development of ECM-derived colloidal materials and tailored control of biochemical cue presentation with broad tissue engineering applications.
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Affiliation(s)
- Katie J Hogan
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
- Baylor College of Medicine Medical Scientist Training Program, Houston, TX 77030, USA
| | - Hayriye Öztatlı
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
- Institute of Biomedical Engineering, Boğaziçi University, İstanbul, 34684, Turkey
| | - Marissa R Perez
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Sophia Si
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Reyhan Umurhan
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Elysa Jui
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Ziwen Wang
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Emily Y Jiang
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Sa R Han
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Mani Diba
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - K Jane Grande-Allen
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
| | - Bora Garipcan
- Institute of Biomedical Engineering, Boğaziçi University, İstanbul, 34684, Turkey
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, MS-142, 6500 Main Street, Houston, TX 77030, USA
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Kordi O, Behravesh AH, Hasannia S, Hedayati SK, Pourghaumi M, Mazdi M, Ghaderi I, Rizvi G. Additive manufacture of PLLA scaffolds reinforced with graphene oxide nano-particles via digital light processing (DLP). J Biomater Appl 2023; 38:484-499. [PMID: 37807545 DOI: 10.1177/08853282231202734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
In this study, 3D printing of poly-l-lactic acid (PLLA) scaffolds reinforced with graphene oxide (GO) nanoparticles via Digital Light Processing (DLP) was investigated to mimic bone tissue. Stereolithography is one of the most accurate additive manufacturing methods, but the dominant available materials used in this method are toxic. In this research, a biocompatible resin (PLLA) was synthetized and functionalized to serve the purpose. Due to the low mechanical properties of the printed product with the neat resin, graphene oxide nanoparticles in three levels (0.5, 1, and 1.5 wt%) were added with the aim of enhancing the mechanical properties. At first, the optimum post cure time of the neat resin was investigated. Consequently, all the parts were post-cured for 3 h after printing. Due to the temperature-dependent structure of GO, all samples were placed in an oven at 85°C for different time periods of 0, 6, 12, and 18 h to increase mechanical properties. The compression test of heat-treated samples reveals that the compressive strength of the printed parts containing 0.5,1, and 1.5% of GO increased by 151,162 ad 235%, respectively. Scaffolds with the designed pore sizes of 750 microns and a porosity of 40% were printed. Surface hydrophilicity test was performed for all samples showing that the hydrophilicity of the samples increased with increasing GO percentage. The degradation behavior of the samples was evaluated in a PBS environment, and it revealed that by increasing GO, the rate of component degradation increased, but the heat treatment had the opposite effect and decreased the degradation rate. Finally, besides improving biological properties, a significant increase in mechanical properties under compression can introduce the printed scaffolds as a suitable option for bone implants.
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Affiliation(s)
- Omid Kordi
- Additive Manufacturing Laboratory, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Amir Hossein Behravesh
- Additive Manufacturing Laboratory, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Sadegh Hasannia
- Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
- Nova Teb Pars Research Laboratory, Dental Equipment and Bio-material Technology Incubation Center, Tehran, Iran
| | - Seyyed Kaveh Hedayati
- Additive Manufacturing Laboratory, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Majid Pourghaumi
- Additive Manufacturing Laboratory, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Mazdi
- Additive Manufacturing Laboratory, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Iman Ghaderi
- Additive Manufacturing Laboratory, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Ghaus Rizvi
- Faculty of Engineering and Applied Science, Ontario Tech University, Oshawa, ON, Canada
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37
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Patel D, Tatum SA. Bone Graft Substitutes and Enhancement in Craniomaxillofacial Surgery. Facial Plast Surg 2023; 39:556-563. [PMID: 37473765 DOI: 10.1055/s-0043-1770962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023] Open
Abstract
Critical-sized bone defects are a reconstructive challenge, particularly in the craniomaxillofacial (CMF) skeleton. The "gold standard" of autologous bone grafting has been the work horse of reconstruction in both congenital and acquired defects of CMF skeleton. Autologous bone has the proper balance of the protein (or organic) matrix and mineral components with no immune response. Organic and mineral adjuncts exist that offer varying degrees of osteogenic, osteoconductive, osteoinductive, and osteostimulative properties needed for treatment of critical-sized defects. In this review, we discuss the various mostly organic and mostly mineral bone graft substitutes available for autologous bone grafting. Primarily organic bone graft substitutes/enhancers, including bone morphogenic protein, platelet-rich plasma, and other growth factors, have been utilized to support de novo bone growth in setting of critical-sized bone defects. Primarily mineral options, including various calcium salt formulation (calcium sulfate/phosphate/apatite) and bioactive glasses have been long utilized for their similar composition to bone. Yet, a bone graft substitute that can supplant autologous bone grafting is still elusive. However, case-specific utilization of bone graft substitutes offers a wider array of reconstructive options.
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Affiliation(s)
- Dhruv Patel
- Department of Otolaryngology, SUNY Upstate Medical University, Syracuse, New York
| | - Sherard A Tatum
- Department of Otolaryngology and Pediatrics, SUNY Upstate Medical University, Syracuse, New York
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Liu W, Zhang Y, Lyu Y, Bosiakov S, Liu Y. Inverse design of anisotropic bone scaffold based on machine learning and regenerative genetic algorithm. Front Bioeng Biotechnol 2023; 11:1241151. [PMID: 37744255 PMCID: PMC10512832 DOI: 10.3389/fbioe.2023.1241151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction: Triply periodic minimal surface (TPMS) is widely used in the design of bone scaffolds due to its structural advantages. However, the current approach to designing bone scaffolds using TPMS structures is limited to a forward process from microstructure to mechanical properties. Developing an inverse bone scaffold design method based on the mechanical properties of bone structures is crucial. Methods: Using the machine learning and genetic algorithm, a new inverse design model was proposed in this research. The anisotropy of bone was matched by changing the number of cells in different directions. The finite element (FE) method was used to calculate the TPMS configuration and generate a back propagation neural network (BPNN) data set. Neural networks were used to establish the relationship between microstructural parameters and the elastic matrix of bone. This relationship was then used with regenerative genetic algorithm (RGA) in inverse design. Results: The accuracy of the BPNN-RGA model was confirmed by comparing the elasticity matrix of the inverse-designed structure with that of the actual bone. The results indicated that the average error was below 3.00% for three mechanical performance parameters as design targets, and approximately 5.00% for six design targets. Discussion: The present study demonstrated the potential of combining machine learning with traditional optimization method to inversely design anisotropic TPMS bone scaffolds with target mechanical properties. The BPNN-RGA model achieves higher design efficiency, compared to traditional optimization methods. The entire design process is easily controlled.
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Affiliation(s)
- Wenhang Liu
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
| | - Youwei Zhang
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
| | - Yongtao Lyu
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
- DUT-BSU Joint Institute, Dalian University of Technology, Dalian, China
| | - Sergei Bosiakov
- Faculty of Mechanics and Mathematics, Belarusian State University, Minsk, Belarus
| | - Yadong Liu
- Department of Orthopedics, Dalian Municipal Central Hospital Affiliated of Dalian University of Technology, Dalian, China
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Patel K, Salman S, Shanti RM. Bone Allografts: Their Role in Mandibular Reconstruction. Atlas Oral Maxillofac Surg Clin North Am 2023; 31:85-90. [PMID: 37500203 DOI: 10.1016/j.cxom.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Affiliation(s)
- Ketan Patel
- North Memorial Health, 300 Oakdale Avenue N, Robbinsdale, MN 55422, USA
| | - Salam Salman
- Department of Oral and Maxillofacial Surgery, University of Florida Health - Jacksonville, 653 West 8th Street, 2nd Floor LRC Building, Jacksonville, FL 32209, USA.
| | - Rabie M Shanti
- Rutgers School of Dental Medicine, Department of Oral & Maxillofacial Surgery, 110 Bergen Street, Newark, NJ 07103, USA
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Li D, Sun S, Yang Z, Luo Y, Kang P. Efficacy of Modified Lightbulb Technique by Percutaneous Femoral Neck-Head Fenestration Combined With Compacted Artificial Bone Graft for Treating Precollapse Osteonecrosis of the Femoral Head. J Arthroplasty 2023; 38:1760-1766. [PMID: 36924857 DOI: 10.1016/j.arth.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 03/03/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Whether artificial bone provides comparable outcomes to autogenous bone has not been determined for osteonecrosis of the femoral head (ONFH). This study was conducted to compare the clinical outcomes of autogenous and artificial bone grafting (demineralized bone matrix/calcium sulfate [DBM/CaS]) through a modified lightbulb technique by percutaneous femoral neck-head fenestration for treating precollapse ONFH. METHODS A total of 73 Association Research Circulation Osseous Stage Ⅱ ONFH patients (81 hips) who had a mean follow-up of 61 months (range, 52 to 74) were included in this retrospective study. Among them were 40 hips treated with autogenous bone and 41 hips treated with DBM/CaS grafting through the percutaneous femoral neck-head fenestration. The Harris scores, radiographic progressions, clinical success rates, and survival analyses were analyzed. RESULTS At final follow-up, the mean Harris score was 80 points (range, 63 to 92) in the DBM/CaS group and 76 points (range, 69 to 91) in the autogenous bone group (P = .751). The radiographic progression rate was 29.9% in the DBM/CaS group, without significant difference from the autogenous bone group, which was 37.5% (P = .43). About 73.2% of patients in the DBM/CaS group and 75% in the autologous bone group avoided a total hip arthroplasty (P = .85). Survival analysis for femoral head protection revealed similar outcomes between the 2 groups (P > .05). CONCLUSION Percutaneous femoral neck-head fenestration combined with artificial bone (DBM/CaS) grafting had comparable clinical outcomes to autologous bone grafting on preventing femoral head collapse and rescuing THA at a mean of 61-month follow-up for treating early ONFH.
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Affiliation(s)
- Donghai Li
- Department of Orthopaedics surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Shuo Sun
- Department of Orthopaedics surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Zhouyuan Yang
- Department of Orthopaedics surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yue Luo
- Department of Orthopaedics surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Pengde Kang
- Department of Orthopaedics surgery, West China Hospital, Sichuan University, Chengdu, PR China
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Roldan L, Isaza C, Ospina J, Montoya C, Domínguez J, Orrego S, Correa S. A Comparative Study of HA/DBM Compounds Derived from Bovine and Porcine for Bone Regeneration. J Funct Biomater 2023; 14:439. [PMID: 37754853 PMCID: PMC10532284 DOI: 10.3390/jfb14090439] [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: 07/12/2023] [Revised: 07/25/2023] [Accepted: 08/17/2023] [Indexed: 09/28/2023] Open
Abstract
This comparative study investigated the tissue regeneration and inflammatory response induced by xenografts comprised of hydroxyapatite (HA) and demineralized bone matrix (DBM) extracted from porcine (P) and bovine (B) sources. First, extraction of HA and DBM was independently conducted, followed by chemical and morphological characterization. Second, mixtures of HA/DBM were prepared in 50/50 and 60/40 concentrations, and the chemical, morphological, and mechanical properties were evaluated. A rat calvarial defect model was used to evaluate the tissue regeneration and inflammatory responses at 3 and 6 months. The commercial allograft DBM Puros® was used as a clinical reference. Different variables related to tissue regeneration were evaluated, including tissue thickness regeneration (%), amount of regenerated bone area (%), and amount of regenerated collagen area (%). The inflammatory response was evaluated by quantifying the blood vessel area. Overall, tissue regeneration from porcine grafts was superior to bovine. After 3 months of implantation, the tissue thickness regeneration in the 50/50P compound and the commercial DBM was significantly higher (~99%) than in the bovine materials (~23%). The 50/50P and DBM produced higher tissue regeneration than the naturally healed controls. Similar trends were observed for the regenerated bone and collagen areas. The blood vessel area was correlated with tissue regeneration in the first 3 months of evaluation. After 6 months of implantation, HA/DBM compounds showed less regenerated collagen than the DBM-only xenografts. In addition, all animal-derived xenografts improved tissue regeneration compared with the naturally healed defects. No clinical complications associated with any implanted compound were noted.
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Affiliation(s)
- Lina Roldan
- Grupo de Investigación en Bioingeniería (GIB), Universidad EAFIT, Medellín 050022, Colombia; (L.R.); (C.I.)
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA 19122, USA; (C.M.); (S.O.)
| | - Catalina Isaza
- Grupo de Investigación en Bioingeniería (GIB), Universidad EAFIT, Medellín 050022, Colombia; (L.R.); (C.I.)
| | - Juan Ospina
- Centro de Investigación y Desarrollo Cárnico, Industrias de Alimentos Zenú S.A.S., Grupo Nutresa, Medellín 050044, Colombia;
| | - Carolina Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA 19122, USA; (C.M.); (S.O.)
| | - José Domínguez
- Grupo de Investigación en Bioingeniería (GIB), Universidad EAFIT, Medellín 050022, Colombia; (L.R.); (C.I.)
| | - Santiago Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA 19122, USA; (C.M.); (S.O.)
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA 191122, USA
| | - Santiago Correa
- Grupo de Investigación en Bioingeniería (GIB), Universidad EAFIT, Medellín 050022, Colombia; (L.R.); (C.I.)
- Escuela de Ciencias Aplicadas e Ingeniería, Universidad EAFIT, Medellín 050022, Colombia
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Gu L, Huang R, Ni N, Gu P, Fan X. Advances and Prospects in Materials for Craniofacial Bone Reconstruction. ACS Biomater Sci Eng 2023; 9:4462-4496. [PMID: 37470754 DOI: 10.1021/acsbiomaterials.3c00399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
The craniofacial region is composed of 23 bones, which provide crucial function in keeping the normal position of brain and eyeballs, aesthetics of the craniofacial complex, facial movements, and visual function. Given the complex geometry and architecture, craniofacial bone defects not only affect the normal craniofacial structure but also may result in severe craniofacial dysfunction. Therefore, the exploration of rapid, precise, and effective reconstruction of craniofacial bone defects is urgent. Recently, developments in advanced bone tissue engineering bring new hope for the ideal reconstruction of the craniofacial bone defects. This report, presenting a first-time comprehensive review of recent advances of biomaterials in craniofacial bone tissue engineering, overviews the modification of traditional biomaterials and development of advanced biomaterials applying to craniofacial reconstruction. Challenges and perspectives of biomaterial development in craniofacial fields are discussed in the end.
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Affiliation(s)
- Li Gu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Rui Huang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Ni Ni
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Ping Gu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
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Tokeshi S, Fukawa T, Itadera E, Akazawa T, Fujiyoshi T, Takaso M, Nakagawa K, Yamauchi T, Osada N, Ohtori S. Efficacy and Safety of Beta-Tricalcium Phosphate/Polylactic-Co-Glycolic Acid for Implantation of Bone Defects. Cureus 2023; 15:e43597. [PMID: 37719590 PMCID: PMC10504055 DOI: 10.7759/cureus.43597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/19/2023] Open
Abstract
INTRODUCTION Bone defects are often observed after surgery for fractures and bone tumors. Their treatment is technically difficult and sometimes results in negative clinical and economic outcomes. To repair bone defects, a bone graft is implanted by selecting a transplant material from an autologous or artificial bone. Each method has its advantages and disadvantages. Compared to the gold standard of autologous bone graft, bone graft substitutes are not limited by the amount of harvested graft and avoid complications at the donor site. ORB-03 is a new cotton-like bone graft substitute composed of beta-tricalcium phosphate (β-TCP) and a bioabsorbable polymer, polylactic-co-glycolic acid (PLGA). ORB-03 is easy to mold and can fill various bone defect shapes, and its three-dimensional microfiber scaffold can enhance the differentiation of osteoblasts and promote osteogenesis. We investigated the efficacy, ease of handling, and safety of ORB-03 as a bone graft substitute. A multicenter, open-label, single-group study was conducted at six institutions. METHODS Between July 2018 and August 2019, 60 patients with bone defects caused by fracture, benign tumors, or an iliac donor site from bone harvesting were enrolled in this study; 54 patients were finally included for the safety analysis and 48 patients for the image analysis. During surgery, ORB-03 was mixed with the patient's blood and molded into a bone defect. To evaluate the efficacy of ORB-03, radiography and computed tomography (CT) were performed at intervals until 24 weeks after surgery. RESULTS The effective rate and its accurate bilateral 95% confidence interval (CI) were calculated based on the efficacy criteria at 24 weeks postoperatively. The ease with which ORB-03 could be handled in surgery was evaluated. Adverse events that occurred after surgery were evaluated, and those associated with ORB-03 were examined. Bone fusion was good in all cases, and the radiography and CT effective rates were 100.0% and 91.5%, respectively. Handling was easy in all cases. There were four adverse events, none of which were clinically problematic. CONCLUSIONS ORB-03 was found to be easy to handle, safe, and effective as a bone graft substitute for bone defects.
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Affiliation(s)
- Soichiro Tokeshi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, JPN
| | | | | | - Tsutomu Akazawa
- Department of Orthopaedic Surgery, St. Marianna University, Kawasaki-City, JPN
| | | | - Masashi Takaso
- Orthopaedic Surgery, Kitasato University, Sagamihara, JPN
| | - Koichi Nakagawa
- Department of Orthopaedic Surgery, Toho University Sakura Medical Center, Sakura, JPN
| | | | - Naoki Osada
- Orthopaedics, ORTHOReBIRTH Co., Yokohama, JPN
| | - Seiji Ohtori
- Orthopaedics, Chiba University Hospital, Chiba, JPN
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, JPN
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Patel B, Joshi S, Nagrani T, Girdhar GA, Patel H, Sinha S, Haque M, Kumar S, Haq MA. Clinical and Radiographic Evaluation of Autologous Platelet-Rich Fibrin With or Without Demineralized Bone Matrix in the Treatment of Grade II Furcation Defects. Cureus 2023; 15:e44394. [PMID: 37654905 PMCID: PMC10468150 DOI: 10.7759/cureus.44394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2023] [Indexed: 09/02/2023] Open
Abstract
Introduction This study aims to differentiate the employment of demineralized bone matrix (DMBM; Osseograft, Advanced Biotech Products (P) Ltd, Chennai, India) and platelet-rich fibrin (PRF) alone to a composite graft consisting of both materials in the surgical actions toward the anomalies of the human periodontal furcation imperfection. Methods In a split-mouth study, 30 patients with mandibular molars affected by the furcation were allocated without conscious choice to test (PRF + DMBM, n = 30) or control (PRF, n = 30) categories. At the starting point, three months after surgery, and six months later, the following modifiable factors were evaluated: probing pocket depth (PPD), full-mouth plaque scores, full-mouth gingival scores, radiographic defect depth, relative vertical clinical attachment level (RVCAL), and relative horizontal clinical attachment level (RHCAL). Results Results at three and six months demonstrated substantial differences between baseline values for both treatment methods in clinical and X-ray imaging appraisal. Nonetheless, the PRF/DMBM group manifests statistically significantly soaring changes observed in comparison to the PRF group. Overall, the probing depth (PD) in the test site was significantly lower than that in the control site, showing a reduction of 68% (95% CI=41%, 95%, p<0.001). Conclusion Clinical indications significantly improved with PRF and DMBM combined instead of PRF alone. On radiographs, the test group also showed higher bone fill.
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Affiliation(s)
- Bhavin Patel
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Surabhi Joshi
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Tanya Nagrani
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Gaurav A Girdhar
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Heli Patel
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Susmita Sinha
- Physiology, Khulna City Medical College Hospital, Khulna, BGD
| | - Mainul Haque
- Karnavati Scientific Research Center, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
- Pharmacology and Therapeutics, National Defence University of Malaysia, Kuala Lumpur, MYS
| | - Santosh Kumar
- Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, IND
| | - Md Ahsanul Haq
- Biostatistics, Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDRB), Dhaka, BGD
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Yun HW, Jin YJ, Shin DI, Noh S, Kim KM, Park JY, Lim S, Park DY. Fibrocartilage extracellular matrix augmented demineralized bone matrix graft repairs tendon-to-bone interface in a rabbit tendon reconstruction model. BIOMATERIALS ADVANCES 2023; 152:213522. [PMID: 37343332 DOI: 10.1016/j.bioadv.2023.213522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/30/2023] [Accepted: 06/12/2023] [Indexed: 06/23/2023]
Abstract
Current tendon/ligament reconstructions integrate via scar tissue rather than proper bone-tendon interface regeneration, which affects graft longevity, changes in bone tunnel size, and functional outcomes. The purpose of this study was to develop a functional demineralized bone matrix (DBM) + fibrocartilage extracellular matrix (FCECM) composite scaffold, characterize its physicochemical properties, and evaluate its efficacy in repairing tendon-bone interface in a rabbit tendon reconstruction model. Solubilized FCECM was loaded and crosslinked on to DBM scaffolds via gamma-irradiation to create DBM + FCECM scaffolds. The resulting scaffold showed interconnected pores coated with FCECM and protein cargo similar to FCECM. The addition of FCECM modified the physicochemical properties of the DBM scaffold, including microstructure, biochemical composition, mechanical strength, thermodynamic properties, and degradation period. The DBM + FCECM scaffold was biocompatible for mesenchymal stem cells (MSCs) and resulted in elevation of fibrochondrogenic gene markers compared to DBM scaffolds in vitro. In vivo implantation of DBM + FCECM scaffold resulted in neofibrocartilage formation, better pullout strength, and less bone tunnel widening compared to DBM only group in a rabbit tendon reconstruction model. In conclusion, the FCECM augmented DBM scaffold repairs the tendon-bone interface with osseous-fibrocartilage tissue, which may be utilized to improve current tendon reconstruction surgeries.
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Affiliation(s)
- Hee-Woong Yun
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Republic of Korea; Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea
| | - Yong Jun Jin
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Republic of Korea; Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea
| | - Dong Il Shin
- Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea; Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Sujin Noh
- Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea; Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Kyu Min Kim
- Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea
| | - Jae-Young Park
- Department of Orthopedic Surgery, CHA Bundang Medical Center, School of Medicine, CHA University, Pocheon 13496, Gyeonggi-do, Republic of Korea
| | - Sumin Lim
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Republic of Korea; Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea
| | - Do Young Park
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Republic of Korea; Cell Therapy Center, Ajou Medical Center, Suwon, Republic of Korea.
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Hu X, Zhang Z, Wu H, Yang S, Zhao W, Che L, Wang Y, Cao J, Li K, Qian Z. Progress in the application of 3D-printed sodium alginate-based hydrogel scaffolds in bone tissue repair. BIOMATERIALS ADVANCES 2023; 152:213501. [PMID: 37321007 DOI: 10.1016/j.bioadv.2023.213501] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/21/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
In recent years, hydrogels have been widely used in the biomedical field as materials with excellent bionic structures and biological properties. Among them, the excellent comprehensive properties of natural polymer hydrogels represented by sodium alginate have attracted the great attention of researchers. At the same time, by physically blending sodium alginate with other materials, the problems of poor cell adhesion and mechanical properties of sodium alginate hydrogels were directly improved without chemical modification of sodium alginate. The composite blending of multiple materials can also improve the functionality of sodium alginate hydrogels, and the prepared composite hydrogel also has a larger application field. In addition, based on the adjustable viscosity of sodium alginate-based hydrogels, sodium alginate-based hydrogels can be loaded with cells to prepare biological ink, and the scaffold can be printed out by 3D printing technology for the repair of bone defects. This paper first summarizes the improvement of the properties of sodium alginate and other materials after physical blending. Then, it summarizes the application progress of sodium alginate-based hydrogel scaffolds for bone tissue repair based on 3D printing technology in recent years. Moreover, we provide relevant opinions and comments to provide a theoretical basis for follow-up research.
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Affiliation(s)
- Xulin Hu
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China; State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Haoming Wu
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Shuhao Yang
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Weiming Zhao
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Lanyu Che
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Yao Wang
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Jianfei Cao
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 610031, China
| | - Kainan Li
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China.
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Bormann N, Schmock A, Hanke A, Eras V, Ahmed N, Kissner MS, Wildemann B, Brune JC. Analysis of the Ability of Different Allografts to Act as Carrier Grafts for Local Drug Delivery. J Funct Biomater 2023; 14:305. [PMID: 37367268 DOI: 10.3390/jfb14060305] [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: 05/09/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023] Open
Abstract
Bone defects and infections pose significant challenges for treatment, requiring a comprehensive approach for prevention and treatment. Thus, this study sought to evaluate the efficacy of various bone allografts in the absorption and release of antibiotics. A specially designed high-absorbency, high-surface-area carrier graft composed of human demineralized cortical fibers and granulated cancellous bone (fibrous graft) was compared to different human bone allograft types. The groups tested here were three fibrous grafts with rehydration rates of 2.7, 4, and 8 mL/g (F(2.7), F(4), and F(8)); demineralized bone matrix (DBM); cortical granules; mineralized cancellous bone; and demineralized cancellous bone. The absorption capacity of the bone grafts was assessed after rehydration, the duration of absorption varied from 5 to 30 min, and the elution kinetics of gentamicin were determined over 21 days. Furthermore, antimicrobial activity was assessed using a zone of inhibition (ZOI) test with S. aureus. The fibrous grafts exhibited the greatest tissue matrix absorption capacity, while the mineralized cancellous bone revealed the lowest matrix-bound absorption capacity. For F(2.7) and F(4), a greater elution of gentamicin was observed from 4 h and continuously over the first 3 days when compared to the other grafts. Release kinetics were only marginally affected by the varied incubation times. The enhanced absorption capacity of the fibrous grafts resulted in a prolonged antibiotic release and activity. Therefore, fibrous grafts can serve as suitable carrier grafts, as they are able to retain fluids such as antibiotics at their intended destinations, are easy to handle, and allow for a prolonged antibiotic release. Application of these fibrous grafts can enable surgeons to provide longer courses of antibiotic administration for septic orthopedic indications, thus minimizing infections.
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Affiliation(s)
- Nicole Bormann
- Julius Wolff Institut und BIH-Center für Regenerative Therapien und Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, 13353 Berlin, Germany
| | - Aysha Schmock
- Julius Wolff Institut und BIH-Center für Regenerative Therapien und Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, 13353 Berlin, Germany
| | - Anja Hanke
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany
| | - Volker Eras
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany
| | - Norus Ahmed
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany
| | - Maya S Kissner
- Julius Wolff Institut und BIH-Center für Regenerative Therapien und Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, 13353 Berlin, Germany
| | - Britt Wildemann
- Julius Wolff Institut und BIH-Center für Regenerative Therapien und Center, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, 13353 Berlin, Germany
- Experimental Trauma Surgery, Department of Trauma, Hand and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University, 07747 Jena, Germany
| | - Jan C Brune
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany
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Nisperos MJ, Bacosa H, Lumancas G, Arellano F, Aron J, Baclayon L, Bantilan ZC, Labares M, Bual R. Time-Dependent Demineralization of Tilapia ( Oreochromis niloticus) Bones Using Hydrochloric Acid for Extracellular Matrix Extraction. Biomimetics (Basel) 2023; 8:217. [PMID: 37366812 DOI: 10.3390/biomimetics8020217] [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: 04/16/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/28/2023] Open
Abstract
Tilapia (Oreochromis niloticus) is a widely cultivated fish in tropical and subtropical regions such as the Philippines, generating substantial waste during processing, including bones that are a valuable source of extracellular matrix (ECM). However, the extraction of ECM from fish bones requires an essential step of demineralization. This study aimed to assess the efficiency of tilapia bone demineralization using 0.5 N HCl at different time durations. By evaluating the residual calcium concentration, reaction kinetics, protein content, and extracellular matrix (ECM) integrity through histological analysis, composition assessment, and thermal analysis, the effectiveness of the process was determined. Results revealed that after 1 h of demineralization, the calcium and protein contents were 1.10 ± 0.12% and 88.7 ± 0.58 μg/mL, respectively. The study found that after 6 h, the calcium content was almost completely removed, but the protein content was only 51.7 ± 1.52 μg/mL compared to 109.0 ± 1.0 μg/mL in native bone tissue. Additionally, the demineralization reaction followed second-order kinetics with an R2 value of 0.9964. Histological analysis using H&E staining revealed a gradual disappearance of the basophilic components and the emergence of lacunae, which can be attributed to decellularization and mineral content removal, respectively. As a result, organic components such as collagen remained in the bone samples. ATR-FTIR analysis showed that all demineralized bone samples retained collagen type I markers, including amide I, II, and III, amides A and B, and symmetric and antisymmetric CH2 bands. These findings provide a route for developing an effective demineralization protocol to extract high-quality ECM from fish bones, which could have important nutraceutical and biomedical applications.
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Affiliation(s)
- Michael John Nisperos
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Hernando Bacosa
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Gladine Lumancas
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Fernan Arellano
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Jemwel Aron
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Lean Baclayon
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Zesreal Cain Bantilan
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Marionilo Labares
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Ronald Bual
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
- Department of Chemical Engineering and Technology, College of Engineering, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
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49
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Söhling N, Heilani M, Fremdling C, Schaible A, Schröder K, Brune JC, Eras V, Nau C, Marzi I, Henrich D, Verboket RD. One Stage Masquelets Technique: Evaluation of Different Forms of Membrane Filling with and without Bone Marrow Mononuclear Cells (BMC) in Large Femoral Bone Defects in Rats. Cells 2023; 12:cells12091289. [PMID: 37174689 PMCID: PMC10177115 DOI: 10.3390/cells12091289] [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: 03/29/2023] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
The classic two-stage masquelet technique is an effective procedure for the treatment of large bone defects. Our group recently showed that one surgery could be saved by using a decellularized dermis membrane (DCD, Epiflex, DIZG). In addition, studies with bone substitute materials for defect filling show that it also appears possible to dispense with the removal of syngeneic cancellous bone (SCB), which is fraught with complications. The focus of this work was to clarify whether the SCB can be replaced by the granular demineralized bone matrix (g-DBM) or fibrous demineralized bone matrix (f-DBM) demineralized bone matrix and whether the colonization of the DCD and/or the DBM defect filling with bone marrow mononuclear cells (BMC) can lead to improved bone healing. In 100 Sprague Dawley rats, a critical femoral bone defect 5 mm in length was stabilized with a plate and then encased in DCD. Subsequently, the defect was filled with SCB (control), g-DBM, or f-DBM, with or without BMC. After 8 weeks, the femurs were harvested and subjected to histological, radiological, and biomechanical analysis. The analyses showed the incipient bony bridging of the defect zone in both groups for g-DBM and f-DBM. Stability and bone formation were not affected compared to the control group. The addition of BMCs showed no further improvement in bone healing. In conclusion, DBM offers a new perspective on defect filling; however, the addition of BMC did not lead to better results.
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Affiliation(s)
- Nicolas Söhling
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Myriam Heilani
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Charlotte Fremdling
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Alexander Schaible
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Katrin Schröder
- Center of Physiology, Cardiovascular Physiology, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Jan C Brune
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany
| | - Volker Eras
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany
| | - Christoph Nau
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Dirk Henrich
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - René D Verboket
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
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50
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Al Qabbani A, Rani KGA, Syarif J, AlKawas S, Sheikh Abdul Hamid S, Samsudin AR, Azlina A. Evaluation of decellularization process for developing osteogenic bovine cancellous bone scaffolds in-vitro. PLoS One 2023; 18:e0283922. [PMID: 37018321 PMCID: PMC10075422 DOI: 10.1371/journal.pone.0283922] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 03/21/2023] [Indexed: 04/06/2023] Open
Abstract
Current immunological issues in bone grafting regarding the transfer of xenogeneic donor bone cells into the recipient are challenging the industry to produce safer acellular natural matrices for bone regeneration. The aim of this study was to investigate the efficacy of a novel decellularization technique for producing bovine cancellous bone scaffold and compare its physicochemical, mechanical, and biological characteristics with demineralized cancellous bone scaffold in an in-vitro study. Cancellous bone blocks were harvested from a bovine femoral head (18-24 months old) subjected to physical cleansing and chemical defatting, and further processed in two ways. Group I was subjected to demineralization, while Group II underwent decellularization through physical, chemical, and enzymatic treatments. Both were then freeze-dried, and gamma radiated, finally producing a demineralized bovine cancellous bone (DMB) scaffold and decellularized bovine cancellous bone (DCC) scaffold. Both DMB and DCC scaffolds were subjected to histological evaluation, scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS), fourier-transform infrared spectroscopy (FTIR), quantification of lipid, collagen, and residual nucleic acid content, and mechanical testing. The osteogenic potential was investigated through the recellularization of scaffolds with human osteoblast cell seeding and examined for cell attachment, proliferation, and mineralization by Alizarin staining and gene expression. DCC produced a complete acellular extracellular matrix (ECM) with the absence of nucleic acid content, wider pores with extensive interconnectivity and partially retaining collagen fibrils. DCC demonstrated a higher cell proliferation rate, upregulation of osteogenic differentiation markers, and substantial mineralized nodules production. Our findings suggest that the decellularization technique produced an acellular DCC scaffold with minimal damage to ECM and possesses osteogenic potential through the mechanisms of osteoconduction, osteoinduction, and osteogenesis in-vitro.
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Affiliation(s)
- Ali Al Qabbani
- Department of Oral & Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Basic Science and Oral Biology Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - K. G. Aghila Rani
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Junaidi Syarif
- Department of Nuclear and Mechanical Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Sausan AlKawas
- Department of Oral & Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Suzina Sheikh Abdul Hamid
- Tissue Bank, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - A. R. Samsudin
- Department of Oral & Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Tissue Bank, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Ahmad Azlina
- Basic Science and Oral Biology Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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