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Augustine R, Gezek M, Nikolopoulos VK, Buck PL, Bostanci NS, Camci-Unal G. Stem Cells in Bone Tissue Engineering: Progress, Promises and Challenges. Stem Cell Rev Rep 2024:10.1007/s12015-024-10738-y. [PMID: 39028416 DOI: 10.1007/s12015-024-10738-y] [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] [Accepted: 05/17/2024] [Indexed: 07/20/2024]
Abstract
Bone defects from accidents, congenital conditions, and age-related diseases significantly impact quality of life. Recent advancements in bone tissue engineering (TE) involve biomaterial scaffolds, patient-derived cells, and bioactive agents, enabling functional bone regeneration. Stem cells, obtained from numerous sources including umbilical cord blood, adipose tissue, bone marrow, and dental pulp, hold immense potential in bone TE. Induced pluripotent stem cells and genetically modified stem cells can also be used. Proper manipulation of physical, chemical, and biological stimulation is crucial for their proliferation, maintenance, and differentiation. Stem cells contribute to osteogenesis, osteoinduction, angiogenesis, and mineralization, essential for bone regeneration. This review provides an overview of the latest developments in stem cell-based TE for repairing and regenerating defective bones.
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Affiliation(s)
- Robin Augustine
- Department of Radiology, Stanford Medicine, Stanford University, Palo Alto, CA, 94304, USA
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
| | - Mert Gezek
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, MA, 01854, USA
| | | | - Paige Lauren Buck
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, MA, 01854, USA
| | - Nazli Seray Bostanci
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA
- Biomedical Engineering and Biotechnology Graduate Program, University of Massachusetts, Lowell, MA, 01854, USA
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts, Lowell, MA, 01854, USA.
- Department of Surgery, University of Massachusetts Medical School, Worcester, MA, 01605, USA.
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2
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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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3
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Ciszyński M, Dominiak S, Dominiak M, Gedrange T, Hadzik J. Allogenic Bone Graft in Dentistry: A Review of Current Trends and Developments. Int J Mol Sci 2023; 24:16598. [PMID: 38068918 PMCID: PMC10706024 DOI: 10.3390/ijms242316598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/13/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
In an effort to prepare non-autologous bone graft or biomaterial that would possess characteristics comparable to autologous bone, many different allogenic bone derivatives have been created. Although different existing processing methods aim to achieve the very same results, the specific parameters applied during different stages material preparation can result in significant differences in the material's mechanical and biological properties The properties, including osteoconductive, osteoinductive, and even osteogenic potential, can differ vastly depending on particular preparation and storage techniques used. Osteogenic properties, which have long been thought to be characteristic to autogenic bone grafts only, now seem to also be achievable in allogenic materials due to the possibility to seed the host's stem cells on a graft before its implantation. In this article, we aim to review the available literature on allogenic bone and its derivatives as well as the influence of different preparation methods on its performance.
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Affiliation(s)
| | | | | | | | - Jakub Hadzik
- Department of Dental Surgery, Faculty of Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland
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4
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Jin Y, Zhao W, Yang M, Fang W, Gao G, Wang Y, Fu Q. Cell-Based Therapy for Urethral Regeneration: A Narrative Review and Future Perspectives. Biomedicines 2023; 11:2366. [PMID: 37760808 PMCID: PMC10525510 DOI: 10.3390/biomedicines11092366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/29/2023] [Accepted: 08/16/2023] [Indexed: 09/29/2023] Open
Abstract
Urethral stricture is a common urological disease that seriously affects quality of life. Urethroplasty with grafts is the primary treatment, but the autografts used in clinical practice have unavoidable disadvantages, which have contributed to the development of urethral tissue engineering. Using various types of seed cells in combination with biomaterials to construct a tissue-engineered urethra provides a new treatment method to repair long-segment urethral strictures. To date, various cell types have been explored and applied in the field of urethral regeneration. However, no optimal strategy for the source, selection, and application conditions of the cells is available. This review systematically summarizes the use of various cell types in urethral regeneration and their characteristics in recent years and discusses possible future directions of cell-based therapies.
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Affiliation(s)
- Yangwang Jin
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Weixin Zhao
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC 27157, USA
| | - Ming Yang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Wenzhuo Fang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Guo Gao
- Key Laboratory for Thin Film and Micro Fabrication of the Ministry of Education, School of Sensing Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ying Wang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Qiang Fu
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
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5
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Sharifi M, Kheradmandi R, Salehi M, Alizadeh M, Ten Hagen TLM, Falahati M. Criteria, Challenges, and Opportunities for Acellularized Allogeneic/Xenogeneic Bone Grafts in Bone Repairing. ACS Biomater Sci Eng 2022; 8:3199-3219. [PMID: 35816626 DOI: 10.1021/acsbiomaterials.2c00194] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As bone grafts become more commonly needed by patients and as donors become scarcer, acellularized bone grafts (ABGs) are becoming more popular for restorative purposes. While autogeneic grafts are reliable as a gold standard, allogeneic and xenogeneic ABGs have been shown to be of particular interest due to the limited availability of autogeneic resources and reduced patient well-being in long-term surgeries. Because of the complete similarity of their structures with native bone, excellent mechanical properties, high biocompatibility, and similarities of biological behaviors (osteoinductive and osteoconductive) with local bones, successful outcomes of allogeneic and xenogeneic ABGs in both in vitro and in vivo research have raised hopes of repairing patients' bone injuries in clinical applications. However, clinical trials have been delayed due to a lack of standardized protocols pertaining to acellularization, cell seeding, maintenance, and diversity of ABG evaluation criteria. This study sought to uncover these factors by exploring the bone structures, ossification properties of ABGs, sources, benefits, and challenges of acellularization approaches (physical, chemical, and enzymatic), cell loading, and type of cells used and effects of each of the above items on the regenerative technologies. To gain a perspective on the repair and commercialization of products before implementing new research activities, this study describes the differences between ABGs created by various techniques and methods applied to them. With a comprehensive understanding of ABG behavior, future research focused on treating bone defects could provide a better way to combine the treatment approaches needed to treat bone defects.
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Affiliation(s)
- Majid Sharifi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran.,Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Rasoul Kheradmandi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran.,Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran.,Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Morteza Alizadeh
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, 3614773955 Shahroud, Iran
| | - Timo L M Ten Hagen
- Laboratory Experimental Oncology, Department of Pathology, Erasmus MC, 3015GD Rotterdam, The Netherlands
| | - Mojtaba Falahati
- Laboratory Experimental Oncology, Department of Pathology, Erasmus MC, 3015GD Rotterdam, The Netherlands
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6
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Effects of Raster Angle and Material Components on Mechanical Properties of Polyether-Ether-Ketone/Calcium Silicate Scaffolds. Polymers (Basel) 2021; 13:polym13152547. [PMID: 34372150 PMCID: PMC8348505 DOI: 10.3390/polym13152547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/22/2021] [Accepted: 07/28/2021] [Indexed: 12/21/2022] Open
Abstract
Polyetheretherketone (PEEK) was widely used in the fabrication of bone substitutes for its excellent chemical resistance, thermal stability and mechanical properties that were similar to those of natural bone tissue. However, the biological inertness restricted the osseointegration with surrounding bone tissue. In this study, calcium silicate (CS) was introduced to improve the bioactivity of PEEK. The PEEK/CS composites scaffolds with CS contents in gradient were fabricated with different raster angles via fused filament fabrication (FFF). With the CS content ranging from 0 to 40% wt, the crystallinity degree (from 16% to 30%) and surface roughness (from 0.13 ± 0.04 to 0.48 ± 0.062 μm) of PEEK/CS scaffolds was enhanced. Mechanical testing showed that the compressive modulus of the PEEK/CS scaffolds could be tuned in the range of 23.3–541.5 MPa. Under the same printing raster angle, the compressive strength reached the maximum with CS content of 20% wt. The deformation process and failure modes could be adjusted by changing the raster angle. Furthermore, the mapping relationships among the modulus, strength, raster angle and CS content were derived, providing guidance for the selection of printing parameters and the control of mechanical properties.
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7
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Amini Z, Lari R. A systematic review of decellularized allograft and xenograft–derived scaffolds in bone tissue regeneration. Tissue Cell 2021; 69:101494. [DOI: 10.1016/j.tice.2021.101494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 01/09/2021] [Accepted: 01/10/2021] [Indexed: 12/26/2022]
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8
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Decellularized bone extracellular matrix in skeletal tissue engineering. Biochem Soc Trans 2021; 48:755-764. [PMID: 32369551 DOI: 10.1042/bst20190079] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 02/07/2023]
Abstract
Bone possesses an intrinsic regenerative capacity, which can be compromised by aging, disease, trauma, and iatrogenesis (e.g. tumor resection, pharmacological). At present, autografts and allografts are the principal biological treatments available to replace large bone segments, but both entail several limitations that reduce wider use and consistent success. The use of decellularized extracellular matrices (ECM), often derived from xenogeneic sources, has been shown to favorably influence the immune response to injury and promote site-appropriate tissue regeneration. Decellularized bone ECM (dbECM), utilized in several forms - whole organ, particles, hydrogels - has shown promise in both in vitro and in vivo animal studies to promote osteogenic differentiation of stem/progenitor cells and enhance bone regeneration. However, dbECM has yet to be investigated in clinical studies, which are needed to determine the relative efficacy of this emerging biomaterial as compared with established treatments. This mini-review highlights the recent exploration of dbECM as a biomaterial for skeletal tissue engineering and considers modifications on its future use to more consistently promote bone regeneration.
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9
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Nokhbatolfoghahaei H, Paknejad Z, Bohlouli M, Rezai Rad M, Aminishakib P, Derakhshan S, Mohammadi Amirabad L, Nadjmi N, Khojasteh A. Fabrication of Decellularized Engineered Extracellular Matrix through Bioreactor-Based Environment for Bone Tissue Engineering. ACS OMEGA 2020; 5:31943-31956. [PMID: 33344849 PMCID: PMC7745398 DOI: 10.1021/acsomega.0c04861] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 11/17/2020] [Indexed: 05/31/2023]
Abstract
Extracellular matrix (ECM)-contained grafts can be achieved by decellularization of native bones or synthetic scaffolds. Limitations associated with harvesting the native bone has raised interest in preparing in vitro ECM bioscaffold for bone tissue engineering. Here, we intend to develop an ECM-contained construct via decellularizing an engineered gelatin-coated β-tricalcium phosphate (gTCP) scaffold. In order to find an optimal protocol for decellularization of cell-loaded gTCP scaffolds, they were seeded with buccal fat pad-derived stem cells. Then, four decellularization protocols including sodium dodecyl sulfate, trypsin, Triton X-100, and combined solution methods were compared for the amounts of residual cells and remnant collagen and alteration of scaffold structure. Then, the efficacy of the selected protocol in removing cells from gTCP scaffolds incubated in a rotating and perfusion bioreactor for 24 days was evaluated and compared with static condition using histological analysis. Finally, decellularized scaffolds, reloaded with cells, and their cytotoxicity and osteoinductive capability were evaluated. Complete removal of cells from gTCP scaffolds was achieved from all protocols. However, treatment with Triton X-100 showed significantly higher amount of remnant ECM. Bioreactor-incubated scaffolds possessed greater magnitude of ECM proteins including collagen and glycosaminoglycans. Reseeding the decellularized scaffolds also represented higher osteoinductivity of bioreactor-based scaffolds. Application of Triton X-100 as decellularization protocol and usage of bioreactors are suggested as a suitable technique for designing ECM-contained grafts for bone tissue engineering.
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Affiliation(s)
- Hanieh Nokhbatolfoghahaei
- Dental
Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 1983969413, Iran
- Student
Research Committee, Department of Tissue Engineering and Applied Cell
Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1985717443, Iran
| | - Zahrasadat Paknejad
- Department
of Tissue Engineering and Applied Cell Sciences, School of Advanced
Technologies in Medicine, Shahid Beheshti
University of Medical Sciences, Tehran 1985717443, Iran
- Medical
Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1985717443, Iran
| | - Mahboubeh Bohlouli
- Student
Research Committee, Department of Tissue Engineering and Applied Cell
Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1985717443, Iran
| | - Maryam Rezai Rad
- Dental
Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 1983969413, Iran
| | - Pouyan Aminishakib
- Department
of Oral and Maxillofacial Pathology, School of Dentistry, Tehran University of Medical Sciences, Tehran 1439955991, Iran
| | - Samira Derakhshan
- Department
of Oral and Maxillofacial Pathology, School of Dentistry, Tehran University of Medical Sciences, Tehran 1439955991, Iran
| | | | - Nasser Nadjmi
- Department
of Cranio-Maxillofacial Surgery/University Hospital, Faculty of Medicine
& Health Sciences, University of Antwerp, Antwerp 2100, Belgium
- All
for Research vzw, Harmoniestraat
68, Antwerp 2018, Belgium
| | - Arash Khojasteh
- Dental
Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 1983969413, Iran
- Department
of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran 1983969411, Iran
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The Fabrication and Evaluation of a Potential Biomaterial Produced with Stem Cell Sheet Technology for Future Regenerative Medicine. Stem Cells Int 2020; 2020:9567362. [PMID: 32104186 PMCID: PMC7035578 DOI: 10.1155/2020/9567362] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 11/04/2019] [Accepted: 11/29/2019] [Indexed: 12/17/2022] Open
Abstract
To date, the decellularized scaffold has been widely explored as a source of biological scaffolds for regenerative medicine. However, the acellular matrix derived from natural tissues and organs has a lot of defects, including the limited amount of autogenous tissue and surgical complication such as risk of blood loss, wound infection, pain, shock, and functional damage in the donor part of the body. In this study, we prepared acellular matrix using adipose-derived stem cell (ADSC) sheets and evaluate the cellular compatibility and immunoreactivity. The ADSC sheets were fabricated and subsequently decellularized using repeated freeze-thaw, Triton X-100 and SDS decellularization. Oral mucosal epithelial cells were seeded onto the decellularized ADSC sheets to evaluate the cell replantation ability, and silk fibroin was used as the control. Then, acellular matrix was transplanted onto subcutaneous tissue for 1 week or 3 weeks; H&E staining and immunohistochemical analysis of CD68 expression and quantitative real-time PCR (qPCR) were performed to evaluate the immunogenicity and biocompatibility. The ADSC sheet-derived ECM scaffolds preserved the three-dimensional architecture of ECM and retained the cytokines by Triton X-100 decellularization protocols. Compared with silk fibroin in vitro, the oral mucosal epithelial cells survived better on the decellularized ADSC sheets with an intact and consecutive epidermal cellular layer. Compared with porcine small intestinal submucosa (SIS) in vivo, the homogeneous decellularized ADSC sheets had less monocyte-macrophage infiltrating in vivo implantation. During 3 weeks after transplantation, the mRNA expression of cytokines, such as IL-4/IL-10, was obviously higher in decellularized ADSC sheets than that of porcine SIS. A Triton X-100 method can achieve effective cell removal, retain major ECM components, and preserve the ultrastructure of ADSC sheets. The decellularized ADSC sheets possess good recellularization capacity and excellent biocompatibility. This study demonstrated the potential suitability of utilizing acellular matrix from ADSC sheets for soft tissue regeneration and repair.
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Sukhorukova IV, Sheveyko AN, Firestein KL, Kiryukhantsev-Korneev PV, Golberg D, Shtansky DV. Mechanical properties of decellularized extracellular matrix coated with TiCaPCON film. Biomed Mater 2017. [DOI: 10.1088/1748-605x/aa6fc0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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Tissue-engineered 3D cancer-in-bone modeling: silk and PUR protocols. BONEKEY REPORTS 2016; 5:842. [PMID: 27790370 DOI: 10.1038/bonekey.2016.75] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 09/06/2016] [Indexed: 12/11/2022]
Abstract
Cancers that metastasize or grow in the bone marrow are typically considered incurable and cause extensive damage to the bone and bone marrow. The bone is a complex, dynamic, three-dimensional (3D) environment composed of a plethora of cells that may contribute to, or constrain, the growth of tumor cells and development of bone disease. The development of safe and effective drugs is currently hampered by pre-clinical two-dimensional (2D) models whose poor predictive power does not accurately predict the success or failure of therapeutics. These inadequate models often result in drugs proceeding through extensive pre-clinical studies only to fail clinically. Consistently, 3D co-culture systems prove superior to 2D mono-cultures in modeling in vivo cell phenotypes, disease progression and response to therapeutics. As a complex, multicellular, multidimensional bone microenvironment, 3D models allow for more accurate predictions of tumor growth, cell-cell and cell-matrix interactions, and resulting therapeutic responses. In this review we will discuss various 3D models available and describe step-by-step protocols for two of the most well-established 3D culture models for studying tumor-induced bone disease.
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13
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Development of Synthetic and Natural Materials for Tissue Engineering Applications Using Adipose Stem Cells. Stem Cells Int 2016; 2016:5786257. [PMID: 26977158 PMCID: PMC4764745 DOI: 10.1155/2016/5786257] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 12/12/2022] Open
Abstract
Adipose stem cells have prominent implications in tissue regeneration due to their abundance and relative ease of harvest from adipose tissue and their abilities to differentiate into mature cells of various tissue lineages and secrete various growth cytokines. Development of tissue engineering techniques in combination with various carrier scaffolds and adipose stem cells offers great potential in overcoming the existing limitations constraining classical approaches used in plastic and reconstructive surgery. However, as most tissue engineering techniques are new and highly experimental, there are still many practical challenges that must be overcome before laboratory research can lead to large-scale clinical applications. Tissue engineering is currently a growing field of medical research; in this review, we will discuss the progress in research on biomaterials and scaffolds for tissue engineering applications using adipose stem cells.
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14
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Sukhorukova IV, Sheveyko AN, Kiryukhantsev-Korneev PV, Levashov EA, Shtansky DV. In vitro bioactivity study of TiCaPCO(N) and Ag-doped TiCaPCO(N) films in simulated body fluid. J Biomed Mater Res B Appl Biomater 2015; 105:193-203. [PMID: 26461975 DOI: 10.1002/jbm.b.33534] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/28/2015] [Accepted: 09/12/2015] [Indexed: 01/04/2023]
Abstract
Bioactivity of multicomponent TiCaPCO(N) and Ag-doped TiCaPCO(N) films was evaluated in vitro using simulated body fluid (SBF) and compared with that of bioactive glass Biogran. The first group of films was fabricated by magnetron sputtering of composite TiС0.5 -Ti3 POx -CaO target produced via the self-propagating high-temperature synthesis (SHS) method (TiCaPCON films), after which their surface was implanted with Ag+ ions to obtain Ag-doped TiCaPCON films. The second group of films was fabricated by pulsed electrospark deposition (PED) using SHS-produced composite TiС0.5 -Ti3 POx -CaO and TiС0.5 -Ti3 POx -CaO-Ag electrodes. After immersion in SBF, the structure and chemistry of surface were well characterized using a combination of various microanalytical techniques, such as scanning electron microscopy, X-ray diffractometry (both in conventional and grazing incidence mode), Fourier transform infrared spectroscopy, Raman spectroscopy, and glow discharge optical emission spectroscopy. The results showed that the surfaces of the TiCaPCO(N) and Ag-doped TiCaPCO(N) films were bioactive in vitro and induced the formation of an apatite layer during exposure in SBF. In the case of the magnetron-sputtered films, the apatite layer was formed over 14 days, while 28 days were needed to form CaP phase on the surface of PED-modified samples. Various factors (film structure, surface roughness, surface functional groups, surface charge, and composition, supersaturation, and near-surface local supersaturation of SBF) affecting the kinetics of bone-like apatite formation on a bioactive surface are discussed. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 193-203, 2017.
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Affiliation(s)
- I V Sukhorukova
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow, 119049, Russia
| | - A N Sheveyko
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow, 119049, Russia
| | | | - E A Levashov
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow, 119049, Russia
| | - D V Shtansky
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow, 119049, Russia
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