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Daneshian Y, Lewallen EA, Badreldin AA, Dietz AB, Stein GS, Cool SM, Ryoo HM, Cho YD, van Wijnen AJ. Fundamentals and Translational Applications of Stem Cells and Biomaterials in Dental, Oral and Craniofacial Regenerative Medicine. Crit Rev Eukaryot Gene Expr 2024; 34:37-60. [PMID: 38912962 DOI: 10.1615/critreveukaryotgeneexpr.2024053036] [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: 06/25/2024]
Abstract
Regenerative dental medicine continuously expands to improve treatments for prevalent clinical problems in dental and oral medicine. Stem cell based translational opportunities include regenerative therapies for tooth restoration, root canal therapy, and inflammatory processes (e.g., periodontitis). The potential of regenerative approaches relies on the biological properties of dental stem cells. These and other multipotent somatic mesenchymal stem cell (MSC) types can in principle be applied as either autologous or allogeneic sources in dental procedures. Dental stem cells have distinct developmental origins and biological markers that determine their translational utility. Dental regenerative medicine is supported by mechanistic knowledge of the molecular pathways that regulate dental stem cell growth and differentiation. Cell fate determination and lineage progression of dental stem cells is regulated by multiple cell signaling pathways (e.g., WNTs, BMPs) and epigenetic mechanisms, including DNA modifications, histone modifications, and non-coding RNAs (e.g., miRNAs and lncRNAs). This review also considers a broad range of novel approaches in which stem cells are applied in combination with biopolymers, ceramics, and composite materials, as well as small molecules (agonistic or anti-agonistic ligands) and natural compounds. Materials that mimic the microenvironment of the stem cell niche are also presented. Promising concepts in bone and dental tissue engineering continue to drive innovation in dental and non-dental restorative procedures.
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Affiliation(s)
- Yasaman Daneshian
- Department of Biochemistry, University of Vermont Larner College of Medicine, Burlington, VT, United States of America
| | - Eric A Lewallen
- Department of Biological Sciences, Hampton University, Hampton, VA, USA
| | - Amr A Badreldin
- Laboratory of Molecular Signaling, Division of Oral and Systemic Health Sciences, School of Dentistry, University of California Los Angeles, Los Angeles, CA, USA
| | - Allan B Dietz
- Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Gary S Stein
- Department of Biochemistry, University of Vermont Larner College of Medicine, Burlington, VT 05405; University of Vermont Cancer Center, University of Vermont Larner College of Medicine, Burlington, VT 05405
| | - Simon M Cool
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland, Australia
| | - Hyun-Mo Ryoo
- School of Dentistry, Seoul National University, 28 Yeonkun-dong, Chongro-gu Seoul, 110-749, Republic of Korea
| | - Young Dan Cho
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, 101 Daehak‑no, Jongno‑gu, Seoul 03080, Republic of Korea
| | - Andre J van Wijnen
- Department of Biochemistry, University of Vermont, Burlington, VT 05405, USA
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Abstract
The low regenerative potential of the human body hinders proper regeneration of dysfunctional or lost tissues and organs due to trauma, congenital defects, and diseases. Tissue or organ transplantation has hence been a major conventional option for replacing the diseased or dysfunctional body parts of the patients. In fact, a great number of patients on waiting lists would benefit tremendously if tissue and organs could be replaced with biomimetic spare parts on demand. Herein, regenerative medicine and advanced biomaterials strive to reach this distant goal. Tissue engineering aims to create new biological tissue or organ substitutes, and promote regeneration of damaged or diseased tissue and organs. This approach has been jointly evolving with the major advances in biomaterials, stem cells, and additive manufacturing technologies. In particular, three-dimensional (3D) bioprinting utilizes 3D printing to fabricate viable tissue-like structures (perhaps organs in the future) using bioinks composed of special hydrogels, cells, growth factors, and other bioactive contents. A third generation of multifunctional biomaterials could also show opportunities for building biomimetic scaffolds, upon which to regenerate stem cells in vivo. Besides, decellularization technology based on isolation of extracellular matrix of tissue and organs from their inhabiting cells is presented as an alternative to synthetic biomaterials. Today, the gained knowledge of functional microtissue engineering and biointerfaces, along with the remarkable advances in pluripotent stem cell technology, seems to be instrumental for the development of more realistic microphysiological 3D in vitro tissue models, which can be utilized for personalized disease modeling and drug development. This chapter will discuss the recent advances in the field of regenerative medicine and biomaterials, alongside challenges, limitations, and potentials of the current technologies.
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Affiliation(s)
- Şükran Şeker
- Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, Turkey
| | - Ayşe Eser Elçin
- Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, Turkey
| | - Yaşar Murat Elçin
- Ankara University Faculty of Science, Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara, Turkey.
- Biovalda Health Technologies, Inc., Ankara, Turkey.
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Gan QF, Foo CN, Leong PP, Cheong SK. Incorporating regenerative medicine into rehabilitation programmes: a potential treatment for ankle sprain. INTERNATIONAL JOURNAL OF THERAPY AND REHABILITATION 2021. [DOI: 10.12968/ijtr.2019.0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Ankle sprain has a great effect on morbidity and complications of chronic diseases. Experts have come to a consensus where ankle sprain can be managed by rest, ice, compression and elevation, non-steroidal anti-inflammatory drugs, immobilisation, functional support such as the use of an ankle brace, exercise, surgery and other therapies that include physiotherapy modalities and acupuncture. However, the time required for healing is still relatively long in addition to post-operative complications. Because of the challenges and setbacks faced by interventions to manage ankle sprains and in view of the recent trend and development in the field of regenerative medicine, this article discusses future treatments focusing on a personalised and holistic approach for ankle sprain management. This narrative review provides a novel idea for incorporating regenerative medicine into conventional therapy as an intervention for ankle sprain based on theoretical concepts and available evidence on regenerative medicine involving ligament injuries.
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Affiliation(s)
- Quan Fu Gan
- Pre-clinical Department, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Chai Nien Foo
- Population Medicine Department, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Pooi Pooi Leong
- Pre-clinical Department, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Soon Keng Cheong
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
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Vurat MT, Şeker Ş, Lalegül-Ülker Ö, Parmaksiz M, Elçin AE, Elçin YM. Development of a multicellular 3D-bioprinted microtissue model of human periodontal ligament-alveolar bone biointerface: Towards a pre-clinical model of periodontal diseases and personalized periodontal tissue engineering. Genes Dis 2020; 9:1008-1023. [PMID: 35685479 PMCID: PMC9170773 DOI: 10.1016/j.gendis.2020.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/24/2020] [Accepted: 11/22/2020] [Indexed: 12/20/2022] Open
Abstract
While periodontal (PD) disease is among principal causes of tooth loss worldwide, regulation of concomitant soft and mineralized PD tissues, and PD pathogenesis have not been completely clarified yet. Besides, relevant pre-clinical models and in vitro platforms have limitations in simulating human physiology. Here, we have harnessed three-dimensional bioprinting (3DBP) technology for developing a multi-cellular microtissue model resembling PD ligament-alveolar bone (PDL-AB) biointerface for the first time. 3DBP parameters were optimized; the physical, chemical, rheological, mechanical, and thermal properties of the constructs were assessed. Constructs containing gelatin methacryloyl (Gel-MA) and hydroxyapatite-magnetic iron oxide nanoparticles showed higher level of compressive strength when compared with that of Gel-MA constructs. Bioprinted self-supporting microtissue was cultured under flow in a microfluidic platform for >10 days without significant loss of shape fidelity. Confocal microscopy analysis indicated that encapsulated cells were homogenously distributed inside the matrix and preserved their viability for >7 days under microfluidic conditions. Immunofluorescence analysis showed the cohesion of stromal cell surface marker-1+ human PDL fibroblasts containing PDL layer with the osteocalcin+ human osteoblasts containing mineralized layer in time, demonstrating some permeability of the printed constructs to cell migration. Preliminary tetracycline interaction study indicated the uptake of model drug by the cells inside the 3D-microtissue. Also, the non-toxic levels of tetracycline were determined for the encapsulated cells. Thus, the effects of tetracyclines on PDL-AB have clinical significance for treating PD diseases. This 3D-bioprinted multi-cellular periodontal/osteoblastic microtissue model has potential as an in vitro platform for studying processes of the human PDL.
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Mosquera-Perez R, Fernández-Olavarria A, Diaz-Sanchez RM, Gutierrez-Perez JL, Serrera-Figallo MÁ, Torres-Lagares D. Stem cells and oral surgery: A systematic review. J Clin Exp Dent 2019; 11:e1181-e1189. [PMID: 31824601 PMCID: PMC6894914 DOI: 10.4317/jced.56571] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 11/21/2019] [Indexed: 12/26/2022] Open
Abstract
Background Considering the structural loss that occurs after surgical procedures for cystic and tumoral pathology, in periodontitis, as well as the maxillary atrophy that determines the rehabilitation with dental implants, it is imperative to find satisfactory solutions. The opportunity provided by the findings in stem cells is a recent introduction in the field of oral surgery, based on the regenerative potential that these cells possess in order to restore defects at different levels of the oral cavity. The aim of this systematic review is to discover the real applications that stem cells may have in our treatments in the near future. Material and Methods We made a systematic review of the literature on the subject of stem cells to know the publications relating to them in the field of oral surgery since 2000. PRISMA statement was accomplished, as its official flow chart is used. Results This article draws clinical conclusions from basic research and those conducted in the first clinical cases to apply them in a short period of time to our patients in order to achieve excellence in regenerative therapies. Conclusions To summarize, stem cells may be a turning point in tissue regeneration, though the major challenge is to overcome the remaining obstacles before they become a realistic therapeutic alternative. Key words:Stem cells, oral surgery, cell therapy, regeneration.
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Affiliation(s)
- Regina Mosquera-Perez
- DDS. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | - Ana Fernández-Olavarria
- DDS. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | - Rosa-Maria Diaz-Sanchez
- DDS. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | - José-Luis Gutierrez-Perez
- MD, PhD. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | | | - Daniel Torres-Lagares
- DDS, PhD. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
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Elçin AE, Parmaksiz M, Dogan A, Seker S, Durkut S, Dalva K, Elçin YM. Differential gene expression profiling of human adipose stem cells differentiating into smooth muscle-like cells by TGFβ1/BMP4. Exp Cell Res 2017; 352:207-217. [DOI: 10.1016/j.yexcr.2017.02.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/02/2017] [Accepted: 02/05/2017] [Indexed: 12/18/2022]
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Babo PS, Reis RL, Gomes ME. Periodontal tissue engineering: current strategies and the role of platelet rich hemoderivatives. J Mater Chem B 2017; 5:3617-3628. [DOI: 10.1039/c7tb00010c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Periodontal tissue engineering procures to regenerate the periodontal tissue assuring the right combination of scaffolds, biochemical cues and cells. The platelet rich hemoderivatives might provide the adequate growth factors and structural proteins for the predictable regeneration of periodontium.
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Affiliation(s)
- Pedro S. Babo
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco GMR
| | - Rui L. Reis
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco GMR
| | - Manuela E. Gomes
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco GMR
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Mohammadi MH, Heidary Araghi B, Beydaghi V, Geraili A, Moradi F, Jafari P, Janmaleki M, Valente KP, Akbari M, Sanati-Nezhad A. Skin Diseases Modeling using Combined Tissue Engineering and Microfluidic Technologies. Adv Healthc Mater 2016; 5:2459-2480. [PMID: 27548388 DOI: 10.1002/adhm.201600439] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/30/2016] [Indexed: 12/19/2022]
Abstract
In recent years, both tissue engineering and microfluidics have significantly contributed in engineering of in vitro skin substitutes to test the penetration of chemicals or to replace damaged skins. Organ-on-chip platforms have been recently inspired by the integration of microfluidics and biomaterials in order to develop physiologically relevant disease models. However, the application of organ-on-chip on the development of skin disease models is still limited and needs to be further developed. The impact of tissue engineering, biomaterials and microfluidic platforms on the development of skin grafts and biomimetic in vitro skin models is reviewed. The integration of tissue engineering and microfluidics for the development of biomimetic skin-on-chip platforms is further discussed, not only to improve the performance of present skin models, but also for the development of novel skin disease platforms for drug screening processes.
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Affiliation(s)
- Mohammad Hossein Mohammadi
- Department of Chemical and Petroleum Engineering; Sharif University of Technology; Azadi Ave Tehran Iran
| | - Behnaz Heidary Araghi
- Department of Materials Science and Engineering; Sharif University of Technology; Azadi Ave Tehran Iran
| | - Vahid Beydaghi
- Department of Chemical and Petroleum Engineering; Sharif University of Technology; Azadi Ave Tehran Iran
| | - Armin Geraili
- Department of Chemical and Petroleum Engineering; Sharif University of Technology; Azadi Ave Tehran Iran
| | - Farshid Moradi
- Department of Chemical and Petroleum Engineering; Sharif University of Technology; Azadi Ave Tehran Iran
| | - Parya Jafari
- Department of Electrical Engineering; Sharif University of Technology; Azadi Ave Tehran Iran
| | - Mohsen Janmaleki
- Department of Mechanical and Manufacturing Engineering; Center for Bioengineering Research and Education; University of Calgary; 2500 University Drive NW Calgary AB Canada
| | - Karolina Papera Valente
- Department of Mechanical Engineering, and Center for Biomedical Research; University of Victoria; Victoria BC Canada
| | - Mohsen Akbari
- Department of Mechanical Engineering, and Center for Biomedical Research; University of Victoria; Victoria BC Canada
| | - Amir Sanati-Nezhad
- Department of Mechanical and Manufacturing Engineering; Center for Bioengineering Research and Education; University of Calgary; 2500 University Drive NW Calgary AB Canada
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9
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Elçin YM, İnanç B, Elçin AE. Differentiation of Human Embryonic Stem Cells on Periodontal Ligament Fibroblasts. Methods Mol Biol 2014; 1307:223-35. [PMID: 25352032 DOI: 10.1007/7651_2014_130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- Y Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, Ankara, Turkey,
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10
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Requicha JF, Viegas CA, Muñoz F, Reis RL, Gomes ME. Periodontal tissue engineering strategies based on nonoral stem cells. Anat Rec (Hoboken) 2013; 297:6-15. [PMID: 24293355 DOI: 10.1002/ar.22797] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 09/13/2013] [Indexed: 01/09/2023]
Abstract
Periodontal disease is an inflammatory disease which constitutes an important health problem in humans due to its enormous prevalence and life threatening implications on systemic health. Routine standard periodontal treatments include gingival flaps, root planning, application of growth/differentiation factors or filler materials and guided tissue regeneration. However, these treatments have come short on achieving regeneration ad integrum of the periodontium, mainly due to the presence of tissues from different embryonic origins and their complex interactions along the regenerative process. Tissue engineering (TE) aims to regenerate damaged tissue by providing the repair site with a suitable scaffold seeded with sufficient undifferentiated cells and, thus, constitutes a valuable alternative to current therapies for the treatment of periodontal defects. Stem cells from oral and dental origin are known to have potential to regenerate these tissues. Nevertheless, harvesting cells from these sites implies a significant local tissue morbidity and low cell yield, as compared to other anatomical sources of adult multipotent stem cells. This manuscript reviews studies describing the use of non-oral stem cells in tissue engineering strategies, highlighting the importance and potential of these alternative stem cells sources in the development of advanced therapies for periodontal regeneration.
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Affiliation(s)
- João Filipe Requicha
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Guimarães, Portugal; Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal; ICVS/3B's-PT Government Associated Laboratory, Braga/Guimarães, Portugal
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11
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The effect of fibroblast growth factor and periodontal ligament fibroblast-conditioned medium on fibroblast-related gene expression in bone marrow stromal cells. Tissue Eng Regen Med 2013. [DOI: 10.1007/s13770-013-0387-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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12
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Patil AS, Merchant Y, Nagarajan P. Tissue Engineering of Craniofacial Tissues – A Review. ACTA ACUST UNITED AC 2013. [DOI: 10.7243/2050-1218-2-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Honda MJ, Imaizumi M, Tsuchiya S, Morsczeck C. Dental follicle stem cells and tissue engineering. J Oral Sci 2011; 52:541-52. [PMID: 21206155 DOI: 10.2334/josnusd.52.541] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Adult stem cells are multipotent and can be induced experimentally to differentiate into various cell lineages. Such cells are therefore a key part of achieving the promise of tissue regeneration. The most studied stem cells are those of the hematopoietic and mesenchymal lineages. Recently, mesenchymal stem cells were demonstrated in dental tissues, including dental pulp, periodontal ligament, and dental follicle. The dental follicle is a loose connective tissue that surrounds the developing tooth. Dental follicle stem cells could therefore be a cell source for mesenchymal stem cells. Indeed, dental follicle is present in impacted teeth, which are commonly extracted and disposed of as medical waste in dental practice. Dental follicle stem cells can be isolated and grown under defined tissue culture conditions, and recent characterization of these stem cells has increased their potential for use in tissue engineering applications, including periodontal and bone regeneration. This review describes current knowledge and recent developments in dental follicle stem cells and their application.
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Affiliation(s)
- Masaki J Honda
- Department of Anatomy, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan.
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Inanç B, Elçin YM. Stem Cells in Tooth Tissue Regeneration—Challenges and Limitations. Stem Cell Rev Rep 2011; 7:683-92. [DOI: 10.1007/s12015-011-9237-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Advanced and Prospective Technologies for Potential Use in Craniofacial Tissues Regeneration by Stem Cells and Growth Factors. J Craniofac Surg 2011; 22:342-8. [PMID: 21239932 DOI: 10.1097/scs.0b013e3181f7e185] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Yin Z, Chen X, Chen JL, Ouyang HW. Stem cells for tendon tissue engineering and regeneration. Expert Opin Biol Ther 2010; 10:689-700. [PMID: 20367125 DOI: 10.1517/14712591003769824] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
IMPORTANCE OF THE FIELD Tendon injuries are common especially in sports activities, but tendon is a unique connective tissue with poor self-repair capability. With advances in stem cell biology, tissue engineering is becoming increasingly powerful for tissue regeneration. Stem cells with capacity of multipotency and self-renewal are an ideal cell source for tissue engineering. AREAS COVERED IN THIS REVIEW This review focus on discussing the potential strategies including inductive growth factors, bio-scaffolds, mechanical stimulation, genetic modification and co-culture techniques to direct tendon-lineage differentiation of stem cells for complete tendon regeneration. Attempting to use embryonic stem cells as seed cells for tendon tissue engineering have achieved encouraging results. The combination of chemical and physical signals in stem cell microenvironment could be regulated to induce differentiation of the embryonic stem cells into tendon. WHAT THE READER WILL GAIN We summarize fundamental questions, as well as future directions in tendon biology and tissue engineering. TAKE HOME MESSAGE Multifaceted technologies are increasingly required to control stem cell differentiation, to develop novel stem cell-based therapy, and, ultimately, to achieve more effective repair or regeneration of injured tendons.
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Affiliation(s)
- Zi Yin
- Zhejiang University, School of Medicine, Center for Stem Cell and Tissue Engineering, Mailbox #39, 388 Yu Hang Tang Road, Hangzhou 310058, China
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Chen FM, Jin Y. Periodontal tissue engineering and regeneration: current approaches and expanding opportunities. TISSUE ENGINEERING PART B-REVIEWS 2010; 16:219-55. [PMID: 19860551 DOI: 10.1089/ten.teb.2009.0562] [Citation(s) in RCA: 210] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The management of periodontal tissue defects that result from periodontitis represents a medical and socioeconomic challenge. Concerted efforts have been and still are being made to accelerate and augment periodontal tissue and bone regeneration, including a range of regenerative surgical procedures, the development of a variety of grafting materials, and the use of recombinant growth factors. More recently, tissue-engineering strategies, including new cell- and/or matrix-based dimensions, are also being developed, analyzed, and employed for periodontal regenerative therapies. Tissue engineering in periodontology applies the principles of engineering and life sciences toward the development of biological techniques that can restore lost alveolar bone, periodontal ligament, and root cementum. It is based on an understanding of the role of periodontal formation and aims to grow new functional tissues rather than to build new replacements of periodontium. Although tissue engineering has merged to create more opportunities for predictable and optimal periodontal tissue regeneration, the technique and design for preclinical and clinical studies remain in their early stages. To date, the reconstruction of small- to moderate-sized periodontal bone defects using engineered cell-scaffold constructs is technically feasible, and some of the currently developed concepts may represent alternatives for certain ideal clinical scenarios. However, the predictable reconstruction of the normal structure and functionality of a tooth-supporting apparatus remains challenging. This review summarizes current regenerative procedures for periodontal healing and regeneration and explores their progress and difficulties in clinical practice, with particular emphasis placed upon current challenges and future possibilities associated with tissue-engineering strategies in periodontal regenerative medicine.
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Affiliation(s)
- Fa-Ming Chen
- Department of Periodontology and Oral Medicine, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, P.R. China
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18
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Inanç B, Elçin AE, Elçin YM. In vitro differentiation and attachment of human embryonic stem cells on periodontal tooth root surfaces. Tissue Eng Part A 2010; 15:3427-35. [PMID: 19405785 DOI: 10.1089/ten.tea.2008.0380] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Periodontal tissue engineering based on cell replacement therapies is a promising field for improved regeneration of tooth supporting structures lost as a result of destructive periodontal diseases. Human embryonic stem cells (hESCs) could become adequate cell source for tissue engineering because of their unlimited proliferative potential and ability to differentiate to all somatic cell types. The aim of this study was to analyze the differentiation capacity of hESCs toward periodontal compartment cells and their relationship with tooth root surfaces in vitro. Periodontal ligament fibroblastic cell (PDLF) cultures were established and characterized; hESCs (HUES-9 line) were expanded in undifferentiated state and characterized for pluripotency morphologically and immunohistochemically. Extracted tooth root slices (RS) of 300 microm thickness, prepared with both periodontal and endodontic instrumentation, were used. Three different experimental groups were established: (i) undifferentiated hESC colonies cultured on and around the RS; (ii) undifferentiated hESC colonies cultured on and around RS with PDLF coculture, and (iii) undifferentiated hESC colonies cultured on and around RS with PDLF coculture in osteoinductive medium for 3 weeks. The fibrogenic and osteogenic marker expression was assessed with immunohistochemistry; histological staining and scanning electron microscopy were utilized to determine the relationship between differentiating hESCs and mineralized tooth root structures. Results demonstrate that hESC differentiation is influenced by tooth structures, PDLFs, and osteogenic medium, resulting with increased propensity toward mesenchymal lineage commitment, and formation of soft-hard tissue relationship in close contact areas. The proposed experimental system may facilitate further understanding in development of periodontal structures and contribute to realization of hESCs as a cell source in periodontal tissue engineering applications.
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Affiliation(s)
- Bülend Inanç
- AU-TEBNL, Tissue Engineering, Biomaterials, & Nanobiotechnology Laboratory, Faculty of Science and Biotechnology Institute, Ankara University, Ankara, Turkey
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He H, Cao J, Wang D, Gu B, Guo H, Liu H. Gene-Modified Stem Cells Combined with Rapid Prototyping Techniques: A Novel Strategy for Periodontal Regeneration. Stem Cell Rev Rep 2010; 6:137-41. [DOI: 10.1007/s12015-009-9110-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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20
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Elçin YM, Inanç B, Elçin AE. Human embryonic stem cell differentiation on periodontal ligament fibroblasts. Methods Mol Biol 2010; 584:269-281. [PMID: 19907982 DOI: 10.1007/978-1-60761-369-5_14] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Human embryonic stem cells' (hESCs) unlimited proliferative potential and differentiation capability to all somatic cell types made them potential cell source in different cell-based tissue engineering strategies as well as various experimental applications in fields such as developmental biology, pharmacokinetics, toxicology, and genetics. Periodontal tissue engineering aims to improve the outcome of regenerative therapies which have variable success rates when contemporary techniques are used. Cell-based therapies may offer potential advantage in overcoming the inherent limitations associated with guided tissue-regeneration procedures, such as dependency on defect type and size and the pool and capacity of progenitor cells resident in the wound area. Elucidation of developmental mechanisms of different periodontal tissues may also contribute to valuable knowledge based upon which the future therapies can be designed. Prior to the realization of such a potential, protocols for the differentiation of pluripotent hESCs into periodontal ligament fibroblastic cells (PDLF) as common progenitors for ligament, cementum, and alveolar bone tissue need to be developed. The present protocol describes methods associated with the guided differentiation of hESCs by the use of coculture with adult PDLFs, and the resulting change of morphotype and phenotype of the pluripotent embryonic stem cells toward fibroblastic and osteoblastic lineages.
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Affiliation(s)
- Y Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University, Ankara, Turkey
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de Vries RBM, Oerlemans A, Trommelmans L, Dierickx K, Gordijn B. Ethical aspects of tissue engineering: a review. TISSUE ENGINEERING PART B-REVIEWS 2009; 14:367-75. [PMID: 18834330 DOI: 10.1089/ten.teb.2008.0199] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tissue engineering (TE) is a promising new field of medical technology. However, like other new technologies, it is not free of ethical challenges. Identifying these ethical questions at an early stage is not only part of science's responsibility toward society, but also in the interest of the field itself. In this review, we map which ethical issues related to TE have already been documented in the scientific literature. The issues that turn out to dominate the debate are the use of human embryonic stem cells and therapeutic cloning. Nevertheless, a variety of other ethical aspects are mentioned, which relate to different phases in the development of the field. In addition, we discuss a number of ethical issues that have not yet been raised in the literature.
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Affiliation(s)
- Rob B M de Vries
- Section Ethics, Philosophy, and History of Medicine, Scientific Institute for Quality of Healthcare, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
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22
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Chen FM, Chen R, Wang XJ, Sun HH, Wu ZF. In vitro cellular responses to scaffolds containing two microencapulated growth factors. Biomaterials 2009; 30:5215-24. [PMID: 19560814 DOI: 10.1016/j.biomaterials.2009.06.009] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2009] [Accepted: 06/08/2009] [Indexed: 12/11/2022]
Abstract
Growth factors play an important role in the complex cascade of tissue events in periodontal regeneration, although optimal methods of delivery remain to be identified. We hypothesize that multiple delivery of growth factors, particularly via a microparticle-containing scaffold, will enhance cellular events leading to periodontal regeneration. In this study, cellular responses of periodontal ligament fibroblasts (PDLFs) in scaffolds containing microparticles (MPs) loaded with either bone morphogenetic protein (BMP)-2, insulin-like growth factor (IGF)-1, or a mixture of both MPs were evaluated, and the dual-MP-containing scaffold exhibited the release of different proteins in a sustained and independent fashion. When PDLF-seeded scaffolds were cultured in a flow perfusion bioreactor, cell metabolism and proliferation of PDLFs were significantly increased within 3 days in all IGF-1-containing scaffolds compared with those in groups lacking IGF-1 and particulate delivery enhanced these effects between 3 and 7 days. The dual-MP-containing group showed the most positive results. Both the BMP-2-in-MP and IGF-1-in-MP groups showed greater effects of alkaline phosphatase activity, more osteocalcin and osteopontin production, and more calcium deposition compared with matched GF-adsorbed groups. All osteoblastic markers were at their highest in the dual-MP-containing group at all detected time points. The combined results suggest that our dual-MP-containing scaffold can be used as a cell vehicle to positively affect cell behavior, thus exhibiting the potential to be a candidate scaffold for future periodontal tissue engineering.
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Affiliation(s)
- Fa-Ming Chen
- Department of Periodontology and Oral Medicine, School of Stomatology, Fourth Military Medical University, 145th West Chang-le road, Xi'an 710032, PR China.
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23
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Inanç B, Elçin AE, Elçin YM. Human embryonic stem cell differentiation on tissue engineering scaffolds: effects of NGF and retinoic acid induction. Tissue Eng Part A 2009. [PMID: 19230122 DOI: 10.1089/tea.2007.0213] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The indefinite proliferative capacity and ability to differentiate into all somatic cell types can make human embryonic stem cells (hESCs) useful in experimental and applied studies in embryonic development, tissue engineering, genetic engineering, pharmacokinetics, and the like. Cellular differentiation dynamics can be studied in monolayer cell cultures; however, it proceeds in three-dimensional (3D) organization in vivo. The aim of this study was to assess the effects of retinoic acid (RA) and nerve growth factor (NGF) on the differentiation patterns of hESCs in 3D culture environment and to compare it with the monolayer culture. Expanded hESCs (HUES-9) were differentiated in two experimental groups for 21 days: (i) two-dimensional (2D) monolayer cultures of hESC colonies, and (ii) 3D culture of hES single cells in poly(DL-lactic-co-glycolic acid) scaffolds. The media used were embryonic stem cell expansion medium (ES-EM), embryonic stem cell differentiation medium containing fetal calf serum (ES-DM), ES-EM containing either 10 ng/mL NGF or 10(-6) M RA, and their combination. Fixed specimens were analyzed with scanning electron microscopy, and expression of nestin, pan-cytokeratin, troponin, and alpha-fetoprotein at days 7, 14, and 21 was evaluated by immunohistomorphometry and reverse transcriptase--polymerase chain reaction. Results indicate different patterns of ectodermal, mesodermal, and endodermal marker expressions between groups, where NGF and RA preferentially favors the differentiation toward ectodermal and mesodermal lineages. While troponin and nestin expression is significantly elevated in 3D culture environment, pan-cytokeratin expression is favored by 2D culture instead. The effects of 3D scaffold culture imply the usefulness of testing in vitro differentiation properties of hESCs in various culture settings designed as models in prospective tissue engineering applications.
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Affiliation(s)
- Bülend Inanç
- Tissue Engineering and Biomaterials Laboratory, Faculty of Science and Biotechnology Institute, Ankara University, Ankara, Turkey
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24
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25
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Inanç B, Elçin AE, Elçin YM. Human Embryonic Stem Cell Differentiation on Tissue Engineering Scaffolds: Effects of NGF and Retinoic Acid Induction. Tissue Eng Part A 2008; 14:955-64. [DOI: 10.1089/ten.tea.2007.0213] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Bülend Inanç
- Tissue Engineering and Biomaterials Laboratory, Faculty of Science and Biotechnology Institute, Ankara University, Ankara, Turkey
| | - A. Eser Elçin
- Tissue Engineering and Biomaterials Laboratory, Faculty of Science and Biotechnology Institute, Ankara University, Ankara, Turkey
- Division of Biology Education, GEF, Gazi University, Ankara, Turkey
| | - Y. Murat Elçin
- Tissue Engineering and Biomaterials Laboratory, Faculty of Science and Biotechnology Institute, Ankara University, Ankara, Turkey
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