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Chow SKH, Gao Q, Pius A, Morita M, Ergul Y, Murayama M, Shinohara I, Cekuc MS, Ma C, Susuki Y, Goodman SB. The Advantages and Shortcomings of Stem Cell Therapy for Enhanced Bone Healing. Tissue Eng Part C Methods 2024. [PMID: 39311464 DOI: 10.1089/ten.tec.2024.0252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2024] Open
Abstract
This review explores the regenerative potential of key progenitor cell types and therapeutic strategies to improve healing of complex fractures and bone defects. We define, summarize, and discuss the differentiation potential of totipotent, pluripotent, and multipotent stem cells, emphasizing the advantages and shortcomings of cell therapy for bone repair and regeneration. The fundamental role of mesenchymal stem cells is highlighted due to their multipotency to differentiate into the key lineage cells including osteoblasts, osteocytes, and chondrocytes, which are crucial for bone formation and remodeling. Hematopoietic stem cells (HSCs) also play a significant role; immune cells such as macrophages and T-cells modulate inflammation and tissue repair. Osteoclasts are multinucleated cells that are important to bone remodeling. Vascular progenitor (VP) cells are critical to oxygen and nutrient supply. The dynamic interplay among these lineages and their microenvironment is essential for effective bone restoration. Therapies involving cells that are more than "minimally manipulated" are controversial and include embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs). ESCs, derived from early-stage embryos, possess pluripotent capabilities and have shown promise in preclinical studies for bone healing. iPSCs, reprogrammed from somatic cells, offer personalized medicine applications and can differentiate into various tissue-specific cell lines. Minimally manipulative cell therapy approaches such as the use of bone marrow aspirate concentrate (BMAC), exosomes, and various biomaterials for local delivery are explored for their effectiveness in bone regeneration. BMAC, which contains mostly immune cells but few mesenchymal and VPs, probably improves bone healing by facilitating paracrine-mediated intercellular communication. Exosome isolation harnesses the biological signals and cellular by-products that are a primary source for cell crosstalk and activation. Safe, efficacious, and cost-effective strategies to enhance bone healing using novel cellular therapies are part of a changing paradigm to modulate the inflammatory, repair, and regenerative pathways to achieve earlier more robust tissue healing and improved physical function.
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Affiliation(s)
- Simon Kwoon-Ho Chow
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Qi Gao
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Alexa Pius
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Mayu Morita
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Yasemin Ergul
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Masatoshi Murayama
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Issei Shinohara
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Mehmet Sertac Cekuc
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Chao Ma
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Yosuke Susuki
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Stuart B Goodman
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
- Department of Bioengineering, Stanford University, Stanford, California, USA
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Huang F, Wei G, Wang H, Zhang Y, Lan W, Xie Y, Wu G. Fibroblasts inhibit osteogenesis by regulating nuclear-cytoplasmic shuttling of YAP in mesenchymal stem cells and secreting DKK1. Biol Res 2024; 57:4. [PMID: 38245803 PMCID: PMC10799393 DOI: 10.1186/s40659-023-00481-y] [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: 02/04/2023] [Accepted: 12/04/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Fibrous scars frequently form at the sites of bone nonunion when attempts to repair bone fractures have failed. However, the detailed mechanism by which fibroblasts, which are the main components of fibrous scars, impede osteogenesis remains largely unknown. RESULTS In this study, we found that fibroblasts compete with osteogenesis in both human bone nonunion tissues and BMP2-induced ectopic osteogenesis in a mouse model. Fibroblasts could inhibit the osteoblastic differentiation of mesenchymal stem cells (MSCs) via direct and indirect cell competition. During this process, fibroblasts modulated the nuclear-cytoplasmic shuttling of YAP in MSCs. Knocking down YAP could inhibit osteoblast differentiation of MSCs, while overexpression of nuclear-localized YAP-5SA could reverse the inhibition of osteoblast differentiation of MSCs caused by fibroblasts. Furthermore, fibroblasts secreted DKK1, which further inhibited the formation of calcium nodules during the late stage of osteogenesis but did not affect the early stage of osteogenesis. Thus, fibroblasts could inhibit osteogenesis by regulating YAP localization in MSCs and secreting DKK1. CONCLUSIONS Our research revealed that fibroblasts could modulate the nuclear-cytoplasmic shuttling of YAP in MSCs, thereby inhibiting their osteoblast differentiation. Fibroblasts could also secrete DKK1, which inhibited calcium nodule formation at the late stage of osteogenesis.
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Affiliation(s)
- Fei Huang
- Central Laboratory, First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, Fujian, China
| | - Guozhen Wei
- Department of Orthopaedics, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China
- Department of Orthopaedics, Binhai Campus of the First Affiliated Hospital, National Regional Medical Center, Fujian Medical University, Fuzhou, 350212, Fujian, China
| | - Hai Wang
- Department of Orthopaedics, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China
- Department of Orthopaedics, Binhai Campus of the First Affiliated Hospital, National Regional Medical Center, Fujian Medical University, Fuzhou, 350212, Fujian, China
| | - Ying Zhang
- Central Laboratory, First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, Fujian, China
| | - Wenbin Lan
- Department of Orthopaedics, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China
- Department of Orthopaedics, Binhai Campus of the First Affiliated Hospital, National Regional Medical Center, Fujian Medical University, Fuzhou, 350212, Fujian, China
| | - Yun Xie
- Department of Orthopaedics, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China.
- Department of Orthopaedics, Binhai Campus of the First Affiliated Hospital, National Regional Medical Center, Fujian Medical University, Fuzhou, 350212, Fujian, China.
| | - Gui Wu
- Department of Orthopaedics, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China.
- Department of Orthopaedics, Binhai Campus of the First Affiliated Hospital, National Regional Medical Center, Fujian Medical University, Fuzhou, 350212, Fujian, China.
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Liang C, Liao L, Tian W. Advances Focusing on the Application of Decellularized Extracellular Matrix in Periodontal Regeneration. Biomolecules 2023; 13:673. [PMID: 37189420 PMCID: PMC10136219 DOI: 10.3390/biom13040673] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/01/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
The decellularized extracellular matrix (dECM) is capable of promoting stem cell proliferation, migration, adhesion, and differentiation. It is a promising biomaterial for application and clinical translation in the field of periodontal tissue engineering as it most effectively preserves the complex array of ECM components as they are in native tissue, providing ideal cues for regeneration and repair of damaged periodontal tissue. dECMs of different origins have different advantages and characteristics in promoting the regeneration of periodontal tissue. dECM can be used directly or dissolved in liquid for better flowability. Multiple ways were developed to improve the mechanical strength of dECM, such as functionalized scaffolds with cells that harvest scaffold-supported dECM through decellularization or crosslinked soluble dECM that can form injectable hydrogels for periodontal tissue repair. dECM has found recent success in many periodontal regeneration and repair therapies. This review focuses on the repairing effect of dECM in periodontal tissue engineering, with variations in cell/tissue sources, and specifically discusses the future trend of periodontal regeneration and the future role of soluble dECM in entire periodontal tissue regeneration.
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Affiliation(s)
| | - Li Liao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Sichuan 610041, China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Sichuan 610041, China
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Zheng L, Liu Y, Jiang L, Wang X, Chen Y, Li L, Song M, Zhang H, Zhang YS, Zhang X. Injectable decellularized dental pulp matrix-functionalized hydrogel microspheres for endodontic regeneration. Acta Biomater 2023; 156:37-48. [PMID: 36455855 DOI: 10.1016/j.actbio.2022.11.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/30/2022]
Abstract
The sufficient imitation of tissue structures and components represents an effective and promising approach for tissue engineering and regenerative medicine applications. Dental pulp disease is one of the most common oral diseases, although functional pulp regeneration remains challenging. Herein, we propose a strategy that employs hydrogel microspheres incorporated with decellularized dental pulp matrix-derived bioactive factors to simulate a pulp-specific three-dimensional (3D) microenvironment. The dental pulp microenvironment-specific microspheres constructed by this regenerative strategy exhibited favorable plasticity, biocompatibility, and biological performances. Human dental pulp stem cells (hDPSCs) cultured on the constructed microspheres exhibited enhanced pulp-formation ability in vitro. Furthermore, the hDPSCs-microcarriers achieved the regeneration of pulp-like tissue and new dentin in a semi-orthotopic model in vivo. Mechanistically, the decellularized pulp matrix-derived bioactive factors mediated the multi-directional differentiation of hDPSCs to regenerate the pulp tissue by eliciting the secretion of crucial bioactive cues. Our findings demonstrated that a 3D dental pulp-specific microenvironment facilitated by hydrogel microspheres and dental pulp-specific bioactive factors regenerated the pulp-dentin complex and could be served as a promising treatment option for dental pulp disease. STATEMENT OF SIGNIFICANCE: Injectable bioscaffolds are increasingly used for regenerative endodontic treatment. Despite their success related to their ability to load stem cells, bioactive factors, and injectability, conventional bulk bioscaffolds have drawbacks such as ischemic necrosis in the central region. Various studies have shown that ischemic necrosis in the central region can be corrected by injectable hydrogel microspheres. Unfortunately, pristine microspheres or microspheres without dental pulp-specific bioactive factor would oftentimes fail to regulate stem cells fates in dental pulp multi-directional differentiation. Our present study reported the biofabrication of dental pulp-derived decellularized matrix functionalized gelatin microspheres, which contained dental pulp-specific bioactive factors and have the potential application in endodontic regeneration.
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Affiliation(s)
- Liwen Zheng
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China
| | - Yaxian Liu
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China
| | - Lin Jiang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China
| | - Xiaoping Wang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China
| | - Yuqin Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, PR China
| | - Lan Li
- Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, PR China
| | - Mingyu Song
- Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, PR China
| | - Hongmei Zhang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China.
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
| | - Ximu Zhang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, PR China; Stomatological Hospital of Chongqing Medical University, Chongqing 401174, PR China.
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Liu C, Sharpe P, Volponi AA. Applications of regenerative techniques in adult orthodontics. FRONTIERS IN DENTAL MEDICINE 2023. [DOI: 10.3389/fdmed.2022.1100548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Management of the growing adult orthodontic patient population must contend with challenges particular to orthodontic treatment in adults. These include a limited rate of tooth movement, increased incidence of periodontal complications, higher risk of iatrogenic root resorption and pulp devitalisation, resorbed edentulous ridges, and lack of growth potential. The field of regenerative dentistry has evolved numerous methods of manipulating cellular and molecular processes to rebuild functional oral and dental tissues, and research continues to advance our understanding of stem cells, signalling factors that stimulate repair and extracellular scaffold interactions for the purposes of tissue engineering. We discuss recent findings in the literature to synthesise our understanding of current and prospective approaches based on biological repair that have the potential to improve orthodontic treatment outcomes in adult patients. Methods such as mesenchymal stem cell transplantation, biomimetic scaffold manipulation, and growth factor control may be employed to overcome the challenges described above, thereby reducing adverse sequelae and improving orthodontic treatment outcomes in adult patients. The overarching goal of such research is to eventually translate these regenerative techniques into clinical practice, and establish a new gold standard of safe, effective, autologous therapies.
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Adanir N, Khurshid Z, Ratnayake J. The Regenerative Potential of Decellularized Dental Pulp Extracellular Matrix: A Systematic Review. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6386. [PMID: 36143698 PMCID: PMC9505725 DOI: 10.3390/ma15186386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
INTRODUCTION The regeneration of dental pulp remains a challenge. Although several treatment modalities have been proposed to promote pulpal regeneration, these treatments have several drawbacks. More recently, decellularized dental pulp extracellular matrix (DP-ECM) has been proposed to regenerate dental pulp. However, to date, no systematic review has summarized the overall outcome and assessed the available literature focusing on the endodontic use of DP-ECM. The aim of this systematic review is to critically appraise the literature, summarize the overall outcomes, and provide clinical recommendations about DP-ECM. METHODOLOGY Following the Participants Intervention Control and Outcomes (PICO) principle, a focused question was constructed before conducting a search of the literature and of electronic research databases and registers. The focused question was: 'Compared to controls, does decellularized dental pulp extracellular matrix (DP-ECM) stimulate the regeneration of dental pulp cells and tissue?' Quality assessment of the studies was carried out using Guidelines for Reporting Pre-Clinical in Vitro Studies on Dental Materials and ARRIVE guidelines. RESULTS 12 studies were included in this review. Data from five in vitro experiments and eight in vivo experiments were extracted and the quality of the experiments was assessed. In majority of the studies, DP-ECM appeared to have stimulated pulpal regeneration. However, several sources of bias and methodological deficiencies were found during the quality assessment. CONCLUSION Within the limitations of this review and the included studies, it may be concluded that there is insufficient evidence to deduce the overall efficacy of DP-ECM for pulpal regeneration. More research, clinical and pre-clinical, is required for more conclusive evidence.
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Affiliation(s)
- Necdet Adanir
- Department of Restorative Dentistry, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Jithendra Ratnayake
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
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Hong MH, Lee JH, Jung HS, Shin H, Shin H. Biomineralization of bone tissue: calcium phosphate-based inorganics in collagen fibrillar organic matrices. Biomater Res 2022; 26:42. [PMID: 36068587 PMCID: PMC9450317 DOI: 10.1186/s40824-022-00288-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/22/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Bone regeneration research is currently ongoing in the scientific community. Materials approved for clinical use, and applied to patients, have been developed and produced. However, rather than directly affecting bone regeneration, these materials support bone induction, which regenerates bone. Therefore, the research community is still researching bone tissue regeneration. In the papers published so far, it is hard to find an improvement in the theory of bone regeneration. This review discusses the relationship between the existing theories on hard tissue growth and regeneration and the biomaterials developed so far for this purpose and future research directions. MAINBODY Highly complex nucleation and crystallization in hard tissue involves the coordinated action of ions and/or molecules that can produce different organic and inorganic composite biomaterials. In addition, the healing of bone defects is also affected by the dynamic conditions of ions and nutrients in the bone regeneration process. Inorganics in the human body, especially calcium- and/or phosphorus-based materials, play an important role in hard tissues. Inorganic crystal growth is important for treating or remodeling the bone matrix. Biomaterials used in bone tissue regeneration require expertise in various fields of the scientific community. Chemical knowledge is indispensable for interpreting the relationship between biological factors and their formation. In addition, sources of energy for the nucleation and crystallization processes of such chemical bonds and minerals that make up the bone tissue must be considered. However, the exact mechanism for this process has not yet been elucidated. Therefore, a convergence of broader scientific fields such as chemistry, materials, and biology is urgently needed to induce a distinct bone tissue regeneration mechanism. CONCLUSION This review provides an overview of calcium- and/or phosphorus-based inorganic properties and processes combined with organics that can be regarded as matrices of these minerals, namely collagen molecules and collagen fibrils. Furthermore, we discuss how this strategy can be applied to future bone tissue regenerative medicine in combination with other academic perspectives.
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Affiliation(s)
- Min-Ho Hong
- Department of Dental Biomaterials and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Gangneung, 25457, Republic of Korea
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyun Suk Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, Seoul, 04763, Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, Hanyang University, Seoul, 04763, Republic of Korea
- Institute of Nano Science & Technology (INST), Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyunjung Shin
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, Republic of Korea.
- Department of Energy Science, Nature Inspired Materials Processing Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Lakshmi K, Varadharajan V, Kanagasubbulakshmi S, Kadirvelu K. Advanced bio-nanoscaffold for bone tissue regeneration in animal model. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Zhou M, Guo M, Shi X, Ma J, Wang S, Wu S, Yan W, Wu F, Zhang P. Synergistically Promoting Bone Regeneration by Icariin-Incorporated Porous Microcarriers and Decellularized Extracellular Matrix Derived From Bone Marrow Mesenchymal Stem Cells. Front Bioeng Biotechnol 2022; 10:824025. [PMID: 35464719 PMCID: PMC9021399 DOI: 10.3389/fbioe.2022.824025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/27/2022] [Indexed: 11/13/2022] Open
Abstract
Multifunctionality has becoming essential for bone tissue engineering materials, such as drug release. In this study, icariin (ICA)-incorporated poly(glycolide-co-caprolactone) (PGCL) porous microcarriers were fabricated and then coated with decellularized extracellular matrix (dECM) which was derived from bone marrow mesenchymal stem cells (BMSC). The porous structure was generated due to the soluble gelatin within the microcarriers. The initial released ICA in microcarriers regulated osteogenic ECM production by BMSCs during ECM formation. The dECM could further synergistically enhance the migration and osteogenic differentiation of BMSCs together with ICA as indicated by the transwell migration assay, ALP and ARS staining, as well as gene and protein expression. Furthermore, in vivo results also showed that dECM and ICA exhibited excellent synergistic effects in repairing rat calvarial defects. These findings suggest that the porous microcarriers loaded with ICA and dECM coatings have great potential in the field of bone tissue engineering.
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Affiliation(s)
- Mengyang Zhou
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Min Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Xincui Shi
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Jie Ma
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Shutao Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Shuo Wu
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Weiqun Yan
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
- *Correspondence: Weiqun Yan, ; Feng Wu, ; Peibiao Zhang,
| | - Feng Wu
- Foshan Hospital of Traditional Chinese Medicine/Foshan Hospital of TCM, Foshan, China
- *Correspondence: Weiqun Yan, ; Feng Wu, ; Peibiao Zhang,
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
- *Correspondence: Weiqun Yan, ; Feng Wu, ; Peibiao Zhang,
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Trubelja A, Kasper FK, Farach-Carson MC, Harrington DA. Bringing hydrogel-based craniofacial therapies to the clinic. Acta Biomater 2022; 138:1-20. [PMID: 34743044 PMCID: PMC9234983 DOI: 10.1016/j.actbio.2021.10.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/06/2021] [Accepted: 10/29/2021] [Indexed: 01/17/2023]
Abstract
This review explores the evolution of the use of hydrogels for craniofacial soft tissue engineering, ranging in complexity from acellular injectable fillers to fabricated, cell-laden constructs with complex compositions and architectures. Addressing both in situ and ex vivo approaches, tissue restoration secondary to trauma or tumor resection is discussed. Beginning with relatively simple epithelia of oral mucosa and gingiva, then moving to more functional units like vocal cords or soft tissues with multilayer branched structures, such as salivary glands, various approaches are presented toward the design of function-driven architectures, inspired by native tissue organization. Multiple tissue replacement paradigms are presented here, including the application of hydrogels as structural materials and as delivery platforms for cells and/or therapeutics. A practical hierarchy is proposed for hydrogel systems in craniofacial applications, based on their material and cellular complexity, spatial order, and biological cargo(s). This hierarchy reflects the regulatory complexity dictated by the Food and Drug Administration (FDA) in the United States prior to commercialization of these systems for use in humans. The wide array of available biofabrication methods, ranging from simple syringe extrusion of a biomaterial to light-based spatial patterning for complex architectures, is considered within the history of FDA-approved commercial therapies. Lastly, the review assesses the impact of these regulatory pathways on the translational potential of promising pre-clinical technologies for craniofacial applications. STATEMENT OF SIGNIFICANCE: While many commercially available hydrogel-based products are in use for the craniofacial region, most are simple formulations that either are applied topically or injected into tissue for aesthetic purposes. The academic literature previews many exciting applications that harness the versatility of hydrogels for craniofacial soft tissue engineering. One of the most exciting developments in the field is the emergence of advanced biofabrication methods to design complex hydrogel systems that can promote the functional or structural repair of tissues. To date, no clinically available hydrogel-based therapy takes full advantage of current pre-clinical advances. This review surveys the increasing complexity of the current landscape of available clinical therapies and presents a framework for future expanded use of hydrogels with an eye toward translatability and U.S. regulatory approval for craniofacial applications.
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Affiliation(s)
- Alen Trubelja
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States; Department of Bioengineering, Rice University, Houston, TX 77005, United States
| | - F Kurtis Kasper
- Department of Orthodontics, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States
| | - Mary C Farach-Carson
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States; Department of Bioengineering, Rice University, Houston, TX 77005, United States; Department of BioSciences, Rice University, Houston, TX 77005, United States
| | - Daniel A Harrington
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States; Department of Bioengineering, Rice University, Houston, TX 77005, United States; Department of BioSciences, Rice University, Houston, TX 77005, United States.
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11
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Xie C, Ye J, Liang R, Yao X, Wu X, Koh Y, Wei W, Zhang X, Ouyang H. Advanced Strategies of Biomimetic Tissue-Engineered Grafts for Bone Regeneration. Adv Healthc Mater 2021; 10:e2100408. [PMID: 33949147 DOI: 10.1002/adhm.202100408] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/16/2021] [Indexed: 12/21/2022]
Abstract
The failure to repair critical-sized bone defects often leads to incomplete regeneration or fracture non-union. Tissue-engineered grafts have been recognized as an alternative strategy for bone regeneration due to their potential to repair defects. To design a successful tissue-engineered graft requires the understanding of physicochemical optimization to mimic the composition and structure of native bone, as well as the biological strategies of mimicking the key biological elements during bone regeneration process. This review provides an overview of engineered graft-based strategies focusing on physicochemical properties of materials and graft structure optimization from macroscale to nanoscale to further boost bone regeneration, and it summarizes biological strategies which mainly focus on growth factors following bone regeneration pattern and stem cell-based strategies for more efficient repair. Finally, it discusses the current limitations of existing strategies upon bone repair and highlights a promising strategy for rapid bone regeneration.
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Affiliation(s)
- Chang Xie
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310058 China
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
- Department of Sports Medicine Zhejiang University School of Medicine Hangzhou 310058 China
| | - Jinchun Ye
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310058 China
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
| | - Renjie Liang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310058 China
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
| | - Xudong Yao
- The Fourth Affiliated Hospital Zhejiang University School of Medicine Yiwu 322000 China
| | - Xinyu Wu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310058 China
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
| | - Yiwen Koh
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
| | - Wei Wei
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
- China Orthopedic Regenerative Medicine Group (CORMed) Hangzhou 310058 China
| | - Xianzhu Zhang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310058 China
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310058 China
- Zhejiang University‐University of Edinburgh Institute Zhejiang University School of Medicine and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 314499 China
- Department of Sports Medicine Zhejiang University School of Medicine Hangzhou 310058 China
- China Orthopedic Regenerative Medicine Group (CORMed) Hangzhou 310058 China
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