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Xu Z, Wang B, Huang R, Guo M, Han D, Yin L, Zhang X, Huang Y, Li X. Efforts to promote osteogenesis-angiogenesis coupling for bone tissue engineering. Biomater Sci 2024; 12:2801-2830. [PMID: 38683241 DOI: 10.1039/d3bm02017g] [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: 05/01/2024]
Abstract
Repair of bone defects exceeding a critical size has been always a big challenge in clinical practice. Tissue engineering has exhibited great potential to effectively repair the defects with less adverse effect than traditional bone grafts, during which how to induce vascularized bone formation has been recognized as a critical issue. Therefore, recently many studies have been launched to attempt to promote osteogenesis-angiogenesis coupling. This review summarized comprehensively and explored in depth current efforts to ameliorate the coupling of osteogenesis and angiogenesis from four aspects, namely the optimization of scaffold components, modification of scaffold structures, loading strategies for bioactive substances, and employment tricks for appropriate cells. Especially, the advantages and the possible reasons for every strategy, as well as the challenges, were elaborated. Furthermore, some promising research directions were proposed based on an in-depth analysis of the current research. This paper will hopefully spark new ideas and approaches for more efficiently boosting new vascularized bone formations.
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Affiliation(s)
- Zhiwei Xu
- College of Lab Medicine, Hebei North University, Zhangjiakou 075000, China
| | - Bingbing Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, 100083, China.
| | - Ruoyu Huang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, 100083, China.
| | - Mengyao Guo
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, 100083, China.
| | - Di Han
- College of Lab Medicine, Hebei North University, Zhangjiakou 075000, China
| | - Lan Yin
- Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Xiaoyun Zhang
- College of Lab Medicine, Hebei North University, Zhangjiakou 075000, China
| | - Yong Huang
- College of Lab Medicine, Hebei North University, Zhangjiakou 075000, China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, 100083, China.
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2
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Zakeri Z, Heiderzadeh M, Kocaarslan A, Metin E, Hosseini Karimi SN, Saghati S, Vural A, Akyoldaş G, Baysal K, Yağcı Y, Gürsoy-Özdemir Y, Taşoğlu S, Rahbarghazi R, Sokullu E. Exosomes encapsulated in hydrogels for effective central nervous system drug delivery. Biomater Sci 2024; 12:2561-2578. [PMID: 38602364 DOI: 10.1039/d3bm01055d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
The targeted delivery of pharmacologically active molecules, metabolites, and growth factors to the brain parenchyma has become one of the major challenges following the onset of neurodegeneration and pathological conditions. The therapeutic effect of active biomolecules is significantly impaired after systemic administration in the central nervous system (CNS) because of the blood-brain barrier (BBB). Therefore, the development of novel therapeutic approaches capable of overcoming these limitations is under discussion. Exosomes (Exo) are nano-sized vesicles of endosomal origin that have a high distribution rate in biofluids. Recent advances have introduced Exo as naturally suitable bio-shuttles for the delivery of neurotrophic factors to the brain parenchyma. In recent years, many researchers have attempted to regulate the delivery of Exo to target sites while reducing their removal from circulation. The encapsulation of Exo in natural and synthetic hydrogels offers a valuable strategy to address the limitations of Exo, maintaining their integrity and controlling their release at a desired site. Herein, we highlight the current and novel approaches related to the application of hydrogels for the encapsulation of Exo in the field of CNS tissue engineering.
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Affiliation(s)
- Ziba Zakeri
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
| | - Morteza Heiderzadeh
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
| | - Azra Kocaarslan
- Chemistry Department, Faculty of Science, İstanbul Technical University, İstanbul, Turkey
| | - Ecem Metin
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
| | | | - Sepideh Saghati
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Atay Vural
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
- Department of Neurology, School of Medicine, KoÒ« University, Istanbul 34450, Turkey
| | - Göktuğ Akyoldaş
- Department of Neurosurgery, Koç University Hospital, Istanbul 34450, Turkey
| | - Kemal Baysal
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
- Department of Biochemistry, School of Medicine, Koç University, Istanbul 34450, Turkey
| | - Yusuf Yağcı
- Chemistry Department, Faculty of Science, İstanbul Technical University, İstanbul, Turkey
| | - Yasemin Gürsoy-Özdemir
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
- Department of Neurology, School of Medicine, KoÒ« University, Istanbul 34450, Turkey
| | - Savaş Taşoğlu
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
- Mechanical Engineering Department, School of Engineering, Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Emel Sokullu
- Research Center for Translational Medicine (KUTTAM), Koç University, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey.
- Biophysics Department, Koç University School of Medicine, Rumeli Feneri, 34450, Istanbul, Sariyer, Turkey
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Yang J, Tan Q, Li K, Liao J, Hao Y, Chen Y. Advances and Trends of Photoresponsive Hydrogels for Bone Tissue Engineering. ACS Biomater Sci Eng 2024; 10:1921-1945. [PMID: 38457377 DOI: 10.1021/acsbiomaterials.3c01485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
The development of static hydrogels as an optimal choice for bone tissue engineering (BTE) remains a difficult challenge primarily due to the intricate nature of bone healing processes, continuous physiological functions, and pathological changes. Hence, there is an urgent need to exploit smart hydrogels with programmable properties that can effectively enhance bone regeneration. Increasing evidence suggests that photoresponsive hydrogels are promising bioscaffolds for BTE due to their advantages such as controlled drug release, cell fate modulation, and the photothermal effect. Here, we review the current advances in photoresponsive hydrogels. The mechanism of photoresponsiveness and its advanced applications in bone repair are also elucidated. Future research would focus on the development of more efficient, safer, and smarter photoresponsive hydrogels for BTE. This review is aimed at offering comprehensive guidance on the trends of photoresponsive hydrogels and shedding light on their potential clinical application in BTE.
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Affiliation(s)
- Juan Yang
- West China School of Nursing/West China Hospital, Sichuan University, Chengdu 610041, PR China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Qingqing Tan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Ka Li
- West China School of Nursing/West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Ying Hao
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Yuwen Chen
- West China School of Nursing/West China Hospital, Sichuan University, Chengdu 610041, PR China
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu 610041, PR China
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4
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Vallmajo-Martin Q, Millan C, Müller R, Weber FE, Ehrbar M, Ghayor C. Enhanced bone regeneration in rat calvarial defects through BMP2 release from engineered poly(ethylene glycol) hydrogels. Sci Rep 2024; 14:4916. [PMID: 38418564 PMCID: PMC10901800 DOI: 10.1038/s41598-024-55411-z] [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: 06/30/2023] [Accepted: 02/23/2024] [Indexed: 03/01/2024] Open
Abstract
The clinical standard therapy for large bone defects, typically addressed through autograft or allograft donor tissue, faces significant limitations. Tissue engineering offers a promising alternative strategy for the regeneration of substantial bone lesions. In this study, we harnessed poly(ethylene glycol) (PEG)-based hydrogels, optimizing critical parameters including stiffness, incorporation of arginine-glycine-aspartic acid (RGD) cell adhesion motifs, degradability, and the release of BMP2 to promote bone formation. In vitro we demonstrated that human bone marrow derived stromal cell (hBMSC) proliferation and spreading strongly correlates with hydrogel stiffness and adhesion to RGD peptide motifs. Moreover, the incorporation of the osteogenic growth factor BMP2 into the hydrogels enabled sustained release, effectively inducing bone regeneration in encapsulated progenitor cells. When used in vivo to treat calvarial defects in rats, we showed that hydrogels of low and intermediate stiffness optimally facilitated cell migration, proliferation, and differentiation promoting the efficient repair of bone defects. Our comprehensive in vitro and in vivo findings collectively suggest that the developed hydrogels hold significant promise for clinical translation for bone repair and regeneration by delivering sustained and controlled stimuli from active signaling molecules.
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Affiliation(s)
- Queralt Vallmajo-Martin
- Department of Obstetrics, University Hospital Zürich, University of Zürich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland
- School of Life Sciences and School of Engineering, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Station 15, 1015, Lausanne, Switzerland
| | - Christopher Millan
- Department of Urology, University Hospital Zürich, University of Zürich, Wagistrasse 21, 8952, Zurich, Switzerland
| | - Ralph Müller
- Institute for Biomechanics, Eidgenössische Technische Hochschule Zürich, Leopold-Ruzicka-Weg 8093, 8049, Zurich, Switzerland
| | - Franz E Weber
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zürich, Plattenstrasse 11, 8032, Zurich, Switzerland
| | - Martin Ehrbar
- Department of Obstetrics, University Hospital Zürich, University of Zürich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland.
| | - Chafik Ghayor
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zürich, Plattenstrasse 11, 8032, Zurich, Switzerland.
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Lin CC, Frahm E, Afolabi FO. Orthogonally Crosslinked Gelatin-Norbornene Hydrogels for Biomedical Applications. Macromol Biosci 2024; 24:e2300371. [PMID: 37748778 PMCID: PMC10922053 DOI: 10.1002/mabi.202300371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/19/2023] [Indexed: 09/27/2023]
Abstract
The thiol-norbornene photo-click reaction has exceptionally fast crosslinking efficiency compared with chain-growth polymerization at equivalent macromer contents. The orthogonal reactivity between norbornene and thiol/tetrazine permits crosslinking of synthetic and naturally derived macromolecules with modularity, including poly(ethylene glycol) (PEG)-norbornene (PEGNB), gelatin-norbornene (GelNB), among others. For example, collagen-derived gelatin contains both cell adhesive motifs (e.g., Arg-Gly-Asp or RGD) and protease-labile sequences, making it an ideal macromer for forming cell-laden hydrogels. First reported in 2014, GelNB is increasingly used in orthogonal crosslinking of biomimetic matrices in various applications. GelNB can be crosslinked into hydrogels using multi-functional thiol linkers (e.g., dithiothreitol (DTT) or PEG-tetra-thiol (PEG4SH) via visible light or longwave ultraviolet (UV) light step-growth thiol-norbornene reaction or through an enzyme-mediated crosslinking (i.e., horseradish peroxidase, HRP). GelNB-based hydrogels can also be modularly crosslinked with tetrazine-bearing macromers via inverse electron-demand Diels-Alder (iEDDA) click reaction. This review surveys the various methods for preparing GelNB macromers, the crosslinking mechanisms of GelNB-based hydrogels, and their applications in cell and tissue engineering, including crosslinking of dynamic matrices, disease modeling, and tissue regeneration, delivery of therapeutics, as well as bioprinting and biofabrication.
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Affiliation(s)
- Chien-Chi Lin
- Department of Biomedical Engineering, Purdue School of Engineering & Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN. 46202. USA
| | - Ellen Frahm
- Department of Biomedical Engineering, Purdue School of Engineering & Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN. 46202. USA
| | - Favor O. Afolabi
- Department of Biomedical Engineering, Purdue School of Engineering & Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN. 46202. USA
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Ai Y, Dai F, Li W, Xu F, Yang H, Wu J, Yang K, Li L, Ai F, Song L. Photo-crosslinked bioactive BG/BMSCs@GelMA hydrogels for bone-defect repairs. Mater Today Bio 2023; 23:100882. [PMID: 38161508 PMCID: PMC10755535 DOI: 10.1016/j.mtbio.2023.100882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/05/2023] [Accepted: 11/22/2023] [Indexed: 01/03/2024] Open
Abstract
The clinical treatments of bone defects remain a challenge. Hydrogels containing bone marrow mesenchymal stem cells (BMSCs) are extensively used to bone regeneration because of excellent biocompatibility and hydrophilicity. However, the insufficient osteo-induction capacity of the BMSC-loaded hydrogels limits their clinical applications. In this study, bio-active glass (BG) and BMSCs were combined with gelatin methacryloyl (GelMA) to fabricate composite hydrogels via photo-crosslinking, and the regulation of bone regeneration was investigated. In vitro experiments showed that the BG/BMSCs@GelMA hydrogel had excellent cytocompatibility and promoted osteogenic differentiation in BMSCs. Furthermore, the BG/BMSCs@GelMA hydrogel was injected into critical-sized calvarial defects, and the results further confirmed its excellent angiogenetic and bone regeneration capacity. In addition, BG/BMSCs@GelMA promoted the polarization of macrophages towards the M2 phenotype. In summary, this novel composite hydrogel demonstrated remarkable potential for application in bone regeneration due to its immunomodulatory, excellent angiogenetic as well as osteo-induction capacity.
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Affiliation(s)
- Yufeng Ai
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Fang Dai
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Wenfeng Li
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Fancheng Xu
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Hanwen Yang
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Jianxin Wu
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Kaiqiang Yang
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Li Li
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Fanrong Ai
- School of Advanced Manufacturing, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Li Song
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
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Lin YQ, Feng KK, Lu JY, Le JQ, Li WL, Zhang BC, Li CL, Song XH, Tong LW, Shao JW. CRISPR/Cas9-based application for cancer therapy: Challenges and solutions for non-viral delivery. J Control Release 2023; 361:727-749. [PMID: 37591461 DOI: 10.1016/j.jconrel.2023.08.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/04/2023] [Accepted: 08/06/2023] [Indexed: 08/19/2023]
Abstract
CRISPR/Cas9 genome editing is a promising therapeutic technique, which makes precise and rapid gene editing technology possible on account of its high sensitivity and efficiency. CRISPR/Cas9 system has been proved to able to effectively disrupt and modify genes, which shows great potential for cancer treatment. Current researches proves that virus vectors are capable of effectively delivering the CRISPR/Cas9 system, but immunogenicity and carcinogenicity caused by virus transmission still trigger serious consequences. Therefore, the greatest challenge of CRISPR/Cas9 for cancer therapy lies on how to deliver it to the target tumor site safely and effectively. Non-viral delivery systems with specific targeting, high loading capacity, and low immune toxicity are more suitable than viral vectors, which limited by uncontrollable side effects. Their medical advances and applications have been widely concerned. Herein, we present the molecule mechanism and different construction strategies of CRISPR/Cas9 system for editing genes at the beginning of this research. Subsequently, several common CRISPR/Cas9 non-viral deliveries for cancer treatment are introduced. Lastly, based on the main factors limiting the delivery efficiency of non-viral vectors proposed in the existing researches and literature, we summarize and discuss the main methods to solve these limitations in the existing tumor treatment system, aiming to introduce further optimization and innovation of the CRISPR/Cas9 non-viral delivery system suitable for cancer treatment.
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Affiliation(s)
- Ying-Qi Lin
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ke-Ke Feng
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jie-Ying Lu
- Faculty of Foreign Studies, Guangdong Baiyun University, Guangzhou 510450, China
| | - Jing-Qing Le
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Wu-Lin Li
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Bing-Chen Zhang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Cheng-Lei Li
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xun-Huan Song
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ling-Wu Tong
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jing-Wei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350108, China.
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Yu L, Cavelier S, Hannon B, Wei M. Recent development in multizonal scaffolds for osteochondral regeneration. Bioact Mater 2023; 25:122-159. [PMID: 36817819 PMCID: PMC9931622 DOI: 10.1016/j.bioactmat.2023.01.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/30/2022] [Accepted: 01/14/2023] [Indexed: 02/05/2023] Open
Abstract
Osteochondral (OC) repair is an extremely challenging topic due to the complex biphasic structure and poor intrinsic regenerative capability of natural osteochondral tissue. In contrast to the current surgical approaches which yield only short-term relief of symptoms, tissue engineering strategy has been shown more promising outcomes in treating OC defects since its emergence in the 1990s. In particular, the use of multizonal scaffolds (MZSs) that mimic the gradient transitions, from cartilage surface to the subchondral bone with either continuous or discontinuous compositions, structures, and properties of natural OC tissue, has been gaining momentum in recent years. Scrutinizing the latest developments in the field, this review offers a comprehensive summary of recent advances, current hurdles, and future perspectives of OC repair, particularly the use of MZSs including bilayered, trilayered, multilayered, and gradient scaffolds, by bringing together onerous demands of architecture designs, material selections, manufacturing techniques as well as the choices of growth factors and cells, each of which possesses its unique challenges and opportunities.
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Affiliation(s)
- Le Yu
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, OH, 45701, USA
| | - Sacha Cavelier
- Department of Chemical and Biomolecular Engineering, Ohio University, Athens, OH, 45701, USA
| | - Brett Hannon
- Biomedical Engineering Program, Ohio University, Athens, OH, 45701, USA
| | - Mei Wei
- Biomedical Engineering Program, Ohio University, Athens, OH, 45701, USA
- Department of Mechanical Engineering, Ohio University, Athens, OH, 45701, USA
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9
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Sankaranarayanan A, Ramprasad A, Shree Ganesh S, Ganesh H, Ramanathan B, Shanmugavadivu A, Selvamurugan N. Nanogels for bone tissue engineering - from synthesis to application. NANOSCALE 2023. [PMID: 37305943 DOI: 10.1039/d3nr01246h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanogels are cross-linked hydrogel nanoparticles with a three-dimensional, tunable porous structure that merges the best features of hydrogels and nanoparticles, including the ability to retain their hydrated nature and to swell and shrink in response to environmental changes. Nanogels have attracted increasing attention for use in bone tissue engineering as scaffolds for growth factor transport and cell adhesion. Their three-dimensional structures allow the encapsulation of a wide range of hydrophobic and hydrophilic drugs, enhance their half-life, and impede their enzymatic breakdown in vivo. Nanogel-based scaffolds are a viable treatment modality for enhanced bone regeneration. They act as carriers for cells and active ingredients capable of controlled release, enhanced mechanical support, and osteogenesis for enhanced bone tissue regeneration. However, the development of such nanogel constructs might involve combinations of several biomaterials to fabricate active ingredients that can control release, enhance mechanical support, and facilitate osteogenesis for more effective bone tissue regeneration. Hence, this review aims to highlight the potential of nanogel-based scaffolds to address the needs of bone tissue engineering.
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Affiliation(s)
- Aravind Sankaranarayanan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
| | - Anushikaa Ramprasad
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
| | - S Shree Ganesh
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
| | - Harini Ganesh
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
| | - Bharathi Ramanathan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
| | - Abinaya Shanmugavadivu
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
| | - Nagarajan Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India.
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Bai L, Tao G, Feng M, Xie Y, Cai S, Peng S, Xiao J. Hydrogel Drug Delivery Systems for Bone Regeneration. Pharmaceutics 2023; 15:pharmaceutics15051334. [PMID: 37242576 DOI: 10.3390/pharmaceutics15051334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/12/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
With the in-depth understanding of bone regeneration mechanisms and the development of bone tissue engineering, a variety of scaffold carrier materials with desirable physicochemical properties and biological functions have recently emerged in the field of bone regeneration. Hydrogels are being increasingly used in the field of bone regeneration and tissue engineering because of their biocompatibility, unique swelling properties, and relative ease of fabrication. Hydrogel drug delivery systems comprise cells, cytokines, an extracellular matrix, and small molecule nucleotides, which have different properties depending on their chemical or physical cross-linking. Additionally, hydrogels can be designed for different types of drug delivery for specific applications. In this paper, we summarize recent research in the field of bone regeneration using hydrogels as delivery carriers, detail the application of hydrogels in bone defect diseases and their mechanisms, and discuss future research directions of hydrogel drug delivery systems in bone tissue engineering.
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Affiliation(s)
- Long Bai
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Gang Tao
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Maogeng Feng
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yuping Xie
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Shuyu Cai
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Shuanglin Peng
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jingang Xiao
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
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11
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Elango J. Proliferative and Osteogenic Supportive Effect of VEGF-Loaded Collagen-Chitosan Hydrogel System in Bone Marrow Derived Mesenchymal Stem Cells. Pharmaceutics 2023; 15:pharmaceutics15041297. [PMID: 37111780 PMCID: PMC10143960 DOI: 10.3390/pharmaceutics15041297] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/17/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
The use of hydrogel (HG) in regenerative medicine is an emerging field and thus several approaches have been proposed recently to find an appropriate hydrogel system. In this sense, this study developed a novel HG system using collagen, chitosan, and VEGF composites for culturing mesenchymal stem cells (MSCs), and investigated their ability for osteogenic differentiation and mineral deposition. Our results showed that the HG loaded with 100 ng/mL VEGF (HG-100) significantly supported the proliferation of undifferentiated MSCs, the fibrillary filament structure (HE stain), mineralization (alizarin red S and von Kossa stain), alkaline phosphatase, and the osteogenesis of differentiated MSCs compared to other hydrogels (loaded with 25 and 50 ng/mL VEGF) and control (without hydrogel). HG-100 showed a higher VEGF releasing rate from day 3 to day 7 than other HGs, which substantially supports the proliferative and osteogenic properties of HG-100. However, the HGs did not increase the cell growth in differentiated MSCs on days 14 and 21 due to the confluence state (reach stationary phase) and cell loading ability, regardless of the VEGF content. Similarly, the HGs alone did not stimulate the osteogenesis of MSCs; however, they increased the osteogenic ability of MSCs in presence of osteogenic supplements. Accordingly, a fabricated HG with VEGF could be used as an appropriate system to culture stem cells for bone and dental regeneration.
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Affiliation(s)
- Jeevithan Elango
- Department of Biomaterials Engineering, Faculty of Health Sciences, UCAM-Universidad Católica San Antonio de Murcia, Campus de los Jerónimos 135, Guadalupe, 30107 Murcia, Spain
- Center of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India
- Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
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12
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Banimohamad-Shotorbani B, Karkan SF, Rahbarghazi R, Mehdipour A, Jarolmasjed S, Saghati S, Shafaei H. Application of mesenchymal stem cell sheet for regeneration of craniomaxillofacial bone defects. Stem Cell Res Ther 2023; 14:68. [PMID: 37024981 PMCID: PMC10080954 DOI: 10.1186/s13287-023-03309-4] [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: 08/02/2022] [Accepted: 03/28/2023] [Indexed: 04/08/2023] Open
Abstract
Bone defects are among the most common damages in human medicine. Due to limitations and challenges in the area of bone healing, the research field has turned into a hot topic discipline with direct clinical outcomes. Among several available modalities, scaffold-free cell sheet technology has opened novel avenues to yield efficient osteogenesis. It is suggested that the intact matrix secreted from cells can provide a unique microenvironment for the acceleration of osteoangiogenesis. To the best of our knowledge, cell sheet technology (CST) has been investigated in terms of several skeletal defects with promising outcomes. Here, we highlighted some recent advances associated with the application of CST for the recovery of craniomaxillofacial (CMF) in various preclinical settings. The regenerative properties of both single-layer and multilayer CST were assessed regarding fabrication methods and applications. It has been indicated that different forms of cell sheets are available for CMF engineering like those used for other hard tissues. By tackling current challenges, CST is touted as an effective and alternative therapeutic option for CMF bone regeneration.
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Affiliation(s)
- Behnaz Banimohamad-Shotorbani
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sonia Fathi Karkan
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Ahmad Mehdipour
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyedhosein Jarolmasjed
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Sepideh Saghati
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Shafaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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13
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Ilhan M, Kilicarslan M, Alcigir ME, Bagis N, Ekim O, Orhan K. Clindamycin phosphate and bone morphogenetic protein-7 loaded combined nanoparticle-graft and nanoparticle-film formulations for alveolar bone regeneration - An in vitro and in vivo evaluation. Int J Pharm 2023; 636:122826. [PMID: 36918117 DOI: 10.1016/j.ijpharm.2023.122826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Commonly utilized techniques for healing alveolar bone destruction such as the use of growth factors, suffering from short half-life, application difficulties, and the ability to achieve bioactivity only in the presence of high doses of growth factor. The sustained release of growth factors through a scaffold-based delivery system offers a promising and innovative tool in dentistry. Furthermore, it is suggested to guide the host response by using antimicrobials together with growth factors to prevent recovery and achieve ideal regeneration. Herein, the aim was to prepare and an in vitro - in vivo evaluation of bone morphogenetic protein 7 (BMP-7) and clindamycin phosphate (CDP) loaded polymeric nanoparticles, and their loading into the alginate-chitosan polyelectrolyte complex film or alloplastic graft to accelerate hard tissue regeneration. PLGA nanoparticles containing CDP and BMP-7, separately or together, were prepared using the double emulsion solvent evaporation technique. Through in vitro assays, it was revealed that spherical particles were homogeneously distributed in the combination formulations, and sustained release could be achieved for >12 weeks with all formulations. Also, results from the micro-CT and histopathological analyses indicated that CDP and BMP-7 loaded nanoparticle-film formulations were more effective in treatment than the nanoparticle loaded grafts.
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Affiliation(s)
- Miray Ilhan
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 06560 Ankara, Türkiye; Duzce University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 81620 Duzce, Türkiye.
| | - Muge Kilicarslan
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 06560 Ankara, Türkiye.
| | - Mehmet Eray Alcigir
- Kirikkale University, Faculty of Veterinary Medicine, Department of Pathology, 71450 Kirikkale, Türkiye.
| | - Nilsun Bagis
- Ankara University, Faculty of Dentistry, Department of Periodontology, 06560 Ankara, Türkiye.
| | - Okan Ekim
- Ankara University, Faculty of Veterinary Medicine, Department of Anatomy, 06110 Ankara, Türkiye.
| | - Kaan Orhan
- Ankara University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, 06560 Ankara, Türkiye.
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14
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Phutane P, Telange D, Agrawal S, Gunde M, Kotkar K, Pethe A. Biofunctionalization and Applications of Polymeric Nanofibers in Tissue Engineering and Regenerative Medicine. Polymers (Basel) 2023; 15:polym15051202. [PMID: 36904443 PMCID: PMC10007057 DOI: 10.3390/polym15051202] [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: 12/05/2022] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 03/06/2023] Open
Abstract
The limited ability of most human tissues to regenerate has necessitated the interventions namely autograft and allograft, both of which carry the limitations of its own. An alternative to such interventions could be the capability to regenerate the tissue in vivo.Regeneration of tissue using the innate capacity of the cells to regenerate is studied under the discipline of tissue engineering and regenerative medicine (TERM). Besides the cells and growth-controlling bioactives, scaffolds play the central role in TERM which is analogous to the role performed by extracellular matrix (ECM) in the vivo. Mimicking the structure of ECM at the nanoscale is one of the critical attributes demonstrated by nanofibers. This unique feature and its customizable structure to befit different types of tissues make nanofibers a competent candidate for tissue engineering. This review discusses broad range of natural and synthetic biodegradable polymers employed to construct nanofibers as well as biofunctionalization of polymers to improve cellular interaction and tissue integration. Amongst the diverse ways to fabricate nanofibers, electrospinning has been discussed in detail along with advances in this technique. Review also presents a discourse on application of nanofibers for a range of tissues, namely neural, vascular, cartilage, bone, dermal and cardiac.
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Affiliation(s)
- Prasanna Phutane
- Department of Pharmaceutics, Datta Meghe Institute of Higher Education and Research, Datta Meghe College of Pharmacy, Wardha 442004, MH, India
- Correspondence:
| | - Darshan Telange
- Department of Pharmaceutics, Datta Meghe Institute of Higher Education and Research, Datta Meghe College of Pharmacy, Wardha 442004, MH, India
| | - Surendra Agrawal
- Department of Pharmaceutical Chemistry, Datta Meghe Institute of Higher Education and Research, Datta Meghe College of Pharmacy, Wardha 442004, MH, India
| | - Mahendra Gunde
- Department of Pharmacognosy, Datta Meghe Institute of Higher Education and Research, Datta Meghe College of Pharmacy, Wardha 442004, MH, India
| | - Kunal Kotkar
- Department of Pharmaceutical Quality Assurance, R.C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, MH, India
| | - Anil Pethe
- Department of Pharmaceutics, Datta Meghe Institute of Higher Education and Research, Datta Meghe College of Pharmacy, Wardha 442004, MH, India
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15
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He S, Fang J, Zhong C, Wang M, Ren F. Spatiotemporal Delivery of pBMP2 and pVEGF by a Core-Sheath Structured Fiber-Hydrogel Gene-Activated Matrix Loaded with Peptide-Modified Nanoparticles for Critical-Sized Bone Defect Repair. Adv Healthc Mater 2022; 11:e2201096. [PMID: 35971854 DOI: 10.1002/adhm.202201096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/19/2022] [Indexed: 01/28/2023]
Abstract
The clinical translation of bioactive scaffolds for the treatment of large segmental bone defects remains a grand challenge. The gene-activated matrix (GAM) combining gene therapy and tissue engineering scaffold offers a promising strategy for the restoration of structure and function of damaged or dysfunctional tissues. Herein, a gene-activated biomimetic composite scaffold consisting of an electrospun poly(ε-caprolactone) fiber sheath and an alginate hydrogel core which carried plasmid DNA encoding bone morphogenetic protein 2 (pBMP2) and vascular endothelial growth factor (pVEGF), respectively, is developed. A peptide-modified polymeric nanocarrier with low cytotoxicity and high efficiency serves as the nonviral DNA delivery vector. The obtained GAM allows spatiotemporal release of pVEGF and pBMP2 and promotes osteogenic differentiation of preosteoblasts in vitro. In vivo evaluation using a critical-sized segmental femoral defect model in rats shows that the dual gene delivery system can significantly accelerate bone healing by activating angiogenesis and osteogenesis. These findings demonstrate the effectiveness of the developed dual gene-activated core-sheath structured fiber-hydrogel composite scaffold for critical-sized bone defect regeneration and the potential of cell-free scaffold-based gene therapy for tissue engineering.
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Affiliation(s)
- Shan He
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.,Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Ju Fang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Chuanxin Zhong
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Min Wang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Fuzeng Ren
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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16
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Liu J, Tan Z, Jia Y, Shi X, Hou R, Liu J, Luo D, Fu X, Yang T, Wang X. Co‐delivery of tauroursodeoxycholic acid and dexamethasone using electrospun ultrafine fibers to induce early coupled angiogenesis and osteogenic differentiation. J Appl Polym Sci 2022. [DOI: 10.1002/app.53173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Junyu Liu
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Ziwei Tan
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Yongliang Jia
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Xiaotong Shi
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Ruxia Hou
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Jiajia Liu
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Dongmei Luo
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Xinyu Fu
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Tingting Yang
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
| | - Xiangyu Wang
- School and Hospital of Stomatology Shanxi Medical University Taiyuan China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials Shanxi Medical University Taiyuan China
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17
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Martinez-Garcia FD, van Dongen JA, Burgess JK, Harmsen MC. Matrix Metalloproteases from Adipose Tissue-Derived Stromal Cells Are Spatiotemporally Regulated by Hydrogel Mechanics in a 3D Microenvironment. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9080340. [PMID: 35892753 PMCID: PMC9332414 DOI: 10.3390/bioengineering9080340] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/11/2022] [Accepted: 07/16/2022] [Indexed: 01/16/2023]
Abstract
Adipose tissue-derived stromal cells (ASCs) are of interest in tissue engineering and regenerative medicine (TERM) due to their easy acquisition, multipotency, and secretion of a host of factors that promote regeneration. Retention of ASCs in or around lesions is poor following direct administration. Therefore, for TERM applications, ASCs can be ‘immobilized’ via their incorporation into hydrogels such as gelatine methacryloyl (GelMA). Tweaking GelMA concentration is a common approach to approximate the mechanical properties found in organs or tissues that need repair. Distinct hydrogel mechanics influence the ability of a cell to spread, migrate, proliferate, and secrete trophic factors. Mesenchymal cells such as ASCs are potent remodellers of the extracellular matrix (ECM). Not only do ASCs deposit components, they also secrete matrix metalloproteases (MMPs) which degrade ECM. In this work, we investigated if GelMA polymer concentration influenced the expression of active MMPs by ASCs. In addition, MMPs’ presence was interrogated with regard to ASCs morphology and changes in hydrogel ultrastructure. For this, immortalised ASCs were embedded in 5%, 10%, and 15% (w/v) GelMA hydrogels, photopolymerised and cultured for 14 d. Zymography in situ indicated that MMPs had a variable, hydrogel concentration-dependent influence on ASCs-secreted MMPs. In 5% GelMA, ASCs showed a high and sustained expression of MMPs, while, in 10% and 15% GelMA, such expression was almost null. ASCs morphology based on F-actin staining showed that increasing GelMA concentrations inhibit their spreading. Scanning electron microscopy (SEM) showed that hydrogel ultrastructure in terms of pore density, pore size, and percentage porosity were not consistently influenced by cells. Interestingly, changes in ultrastructural parameters were detected also in cell-free materials, albeit without a clear trend. We conclude that hydrogel concentration and its underlying mechanics influenced MMP expression by ASCs. The exact MMPs that respond to these mechanical cues should be defined in follow-up experiments.
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Affiliation(s)
- Francisco Drusso Martinez-Garcia
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (F.D.M.-G.); (J.K.B.)
- W.J. Kolff Research Institute, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Joris Anton van Dongen
- Department of Plastic Surgery, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands;
| | - Janette Kay Burgess
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (F.D.M.-G.); (J.K.B.)
- W.J. Kolff Research Institute, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Martin Conrad Harmsen
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (F.D.M.-G.); (J.K.B.)
- W.J. Kolff Research Institute, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
- Correspondence:
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18
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Kim YH, Dawson JI, Oreffo ROC, Tabata Y, Kumar D, Aparicio C, Mutreja I. Gelatin Methacryloyl Hydrogels for Musculoskeletal Tissue Regeneration. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9070332. [PMID: 35877383 PMCID: PMC9311920 DOI: 10.3390/bioengineering9070332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 12/30/2022]
Abstract
Musculoskeletal disorders are a significant burden on the global economy and public health. Hydrogels have significant potential for enhancing the repair of damaged and injured musculoskeletal tissues as cell or drug delivery systems. Hydrogels have unique physicochemical properties which make them promising platforms for controlling cell functions. Gelatin methacryloyl (GelMA) hydrogel in particular has been extensively investigated as a promising biomaterial due to its tuneable and beneficial properties and has been widely used in different biomedical applications. In this review, a detailed overview of GelMA synthesis, hydrogel design and applications in regenerative medicine is provided. After summarising recent progress in hydrogels more broadly, we highlight recent advances of GelMA hydrogels in the emerging fields of musculoskeletal drug delivery, involving therapeutic drugs (e.g., growth factors, antimicrobial molecules, immunomodulatory drugs and cells), delivery approaches (e.g., single-, dual-release system), and material design (e.g., addition of organic or inorganic materials, 3D printing). The review concludes with future perspectives and associated challenges for developing local drug delivery for musculoskeletal applications.
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Affiliation(s)
- Yang-Hee Kim
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK; (J.I.D.); (R.O.C.O.)
- Correspondence: (Y.-H.K.); (I.M.); Tel.: +44-2381-203293 (Y.-H.K.); +1-(612)7605790 (I.M.)
| | - Jonathan I. Dawson
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK; (J.I.D.); (R.O.C.O.)
| | - Richard O. C. Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK; (J.I.D.); (R.O.C.O.)
| | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8501, Japan;
| | - Dhiraj Kumar
- Division of Pediatric Dentistry, School of Dentistry, University of Minnesota, Minneapolis, MN 55812, USA;
| | - Conrado Aparicio
- Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Science, University of Minnesota, Minneapolis, MN 55455, USA;
- Division of Basic Research, Faculty of Odontology UIC Barcelona—Universitat Internacional de Catalunya, 08017 Barcelona, Spain
- BIST—Barcelona Institute for Science and Technology, 08195 Barcelona, Spain
| | - Isha Mutreja
- Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Science, University of Minnesota, Minneapolis, MN 55455, USA;
- Correspondence: (Y.-H.K.); (I.M.); Tel.: +44-2381-203293 (Y.-H.K.); +1-(612)7605790 (I.M.)
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19
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Optimizing Design Parameters of PLA 3D-Printed Scaffolds for Bone Defect Repair. SURGERIES 2022. [DOI: 10.3390/surgeries3030018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Current materials used to fill bone defects (ceramics, cement) either lack strength or do not induce bone repair. The use of biodegradable polymers such as PLA may promote patient healing by stimulating the production of new bone in parallel with a controlled degradation of the scaffold. This project aims to determine the design parameters maximising scaffold mechanical performance in such materials. Starting from a base cylindrical model of 10 mm height and of outer and inner diameters of 10 and 4 mm, respectively, 27 scaffolds were designed. Three design parameters were investigated: pore distribution (crosswise, lengthwise, and eccentric), pore shape (triangular, circular, and square), and pore size (surface area of 0.25 mm2, 0.5625 mm2, and 1 mm2). Using the finite element approach, a compressive displacement (0.05 mm/s up to 15% strain) was simulated on the models and the resulting scaffold stiffnesses (N/mm2) were compared. The models presenting good mechanical behaviors were further printed along two orientations: 0° (cylinder sitting on its base) and 90° (cylinder laying on its side). A total of n = 5 specimens were printed with PLA for each of the retained models and experimentally tested using a mechanical testing machine with the same compression parameters. Rigidity and yield strength were evaluated from the experimental curves. Both numerically and experimentally, the highest rigidity was found in the model with circular pore shape, crosswise pore distribution, small pore size (surface area of 0.25 mm2), and a 90° printing orientation. Its average rigidity reached 961 ± 32 MPa from the mechanical testing and 797 MPa from the simulation, with a yield strength of 42 ± 1.5 MPa. The same model with a printing orientation of 0° resulted in an average rigidity of 515 ± 7 MPa with a yield strength of 32 ± 1.6 MPa. Printing orientation and pore size were found to be the most influential design parameters on rigidity. The developed design methodology should accelerate the identification of effective scaffolds for future in vitro and in vivo studies.
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20
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Zhu L, Liu Y, Wang A, Zhu Z, Li Y, Zhu C, Che Z, Liu T, Liu H, Huang L. Application of BMP in Bone Tissue Engineering. Front Bioeng Biotechnol 2022; 10:810880. [PMID: 35433652 PMCID: PMC9008764 DOI: 10.3389/fbioe.2022.810880] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/01/2022] [Indexed: 01/15/2023] Open
Abstract
At present, bone nonunion and delayed union are still difficult problems in orthopaedics. Since the discovery of bone morphogenetic protein (BMP), it has been widely used in various studies due to its powerful role in promoting osteogenesis and chondrogenesis. Current results show that BMPs can promote healing of bone defects and reduce the occurrence of complications. However, the mechanism of BMP in vivo still needs to be explored, and application of BMP alone to a bone defect site cannot achieve good therapeutic effects. It is particularly important to modify implants to carry BMP to achieve slow and sustained release effects by taking advantage of the nature of the implant. This review aims to explain the mechanism of BMP action in vivo, its biological function, and how BMP can be applied to orthopaedic implants to effectively stimulate bone healing in the long term. Notably, implantation of a system that allows sustained release of BMP can provide an effective method to treat bone nonunion and delayed bone healing in the clinic.
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Affiliation(s)
- Liwei Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
- Orthopaedic Research Institute of Jilin Province, Changchun, China
| | - Yuzhe Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Ao Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Zhengqing Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Youbin Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Chenyi Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Zhenjia Che
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Tengyue Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - He Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
- Orthopaedic Research Institute of Jilin Province, Changchun, China
- *Correspondence: He Liu, ; Lanfeng Huang,
| | - Lanfeng Huang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
- *Correspondence: He Liu, ; Lanfeng Huang,
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21
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Biomolecular engineering of drugs loading in Riboflavin-targeted polymeric devices: simulation and experimental. Sci Rep 2022; 12:5119. [PMID: 35332259 PMCID: PMC8948184 DOI: 10.1038/s41598-022-09164-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/16/2022] [Indexed: 11/09/2022] Open
Abstract
The synthesis of polymeric nanoparticles (NPs) with efficient drug loading content and targeting moieties is an attractive field and remains a challenge in drug delivery systems. Atomistic investigations can provide an in-depth understanding of delivery devices and reduce the number of expensive experiments. In this paper, we studied the self-assembly of poly (lactic-co-glycolic acid)-b-poly (ethylene glycol) with different molecular weights and surface compositions. The innovation of this molecular study is the loading of an antitumor drug (docetaxel) on a targeting ligand (riboflavin). According to this work, a novel, biocompatible and targeted system for cancer treatment has been developed. The obtained results revealed a correlation between polymer molecular weight and the stability of particles. In this line, samples including 20 and 10 w/w% moiety NPs formed from polymers with 3 and 4.5 kDa backbone sizes, respectively, are the stable models with the highest drug loading and entrapment efficiencies. Next, we evaluated NP morphology and found that NPs have a core/shell structure consisting of a hydrophobic core with a shell of poly (ethylene glycol) and riboflavin. Interestingly, morphology assessments confirmed that the targeting moiety located on the surface can improve drug delivery to receptors and cancerous cells. The developed models provided significant insight into the structure and morphology of NPs before the synthesis and further analysis of NPs in biological environments. However, in the best cases of this system, Dynamic Light Scattering (DLS) tests were also taken and the results were consistent with the results obtained from All Atom and Coarse Grained simulations.
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22
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Wang Y, Kankala RK, Ou C, Chen A, Yang Z. Advances in hydrogel-based vascularized tissues for tissue repair and drug screening. Bioact Mater 2022; 9:198-220. [PMID: 34820566 PMCID: PMC8586021 DOI: 10.1016/j.bioactmat.2021.07.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022] Open
Abstract
The construction of biomimetic vasculatures within the artificial tissue models or organs is highly required for conveying nutrients, oxygen, and waste products, for improving the survival of engineered tissues in vitro. In recent times, the remarkable progress in utilizing hydrogels and understanding vascular biology have enabled the creation of three-dimensional (3D) tissues and organs composed of highly complex vascular systems. In this review, we give an emphasis on the utilization of hydrogels and their advantages in the vascularization of tissues. Initially, the significance of vascular elements and the regeneration mechanisms of vascularization, including angiogenesis and vasculogenesis, are briefly introduced. Further, we highlight the importance and advantages of hydrogels as artificial microenvironments in fabricating vascularized tissues or organs, in terms of tunable physical properties, high similarity in physiological environments, and alternative shaping mechanisms, among others. Furthermore, we discuss the utilization of such hydrogels-based vascularized tissues in various applications, including tissue regeneration, drug screening, and organ-on-chips. Finally, we put forward the key challenges, including multifunctionalities of hydrogels, selection of suitable cell phenotype, sophisticated engineering techniques, and clinical translation behind the development of the tissues with complex vasculatures towards their future development.
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Affiliation(s)
- Ying Wang
- Affiliated Dongguan Hospital, Southern Medical University, Dongguan, Guangdong, 523059, PR China
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, Guangdong, 510080, PR China
| | - Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China
| | - Caiwen Ou
- Affiliated Dongguan Hospital, Southern Medical University, Dongguan, Guangdong, 523059, PR China
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, Guangdong, 510080, PR China
| | - Aizheng Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China
| | - Zhilu Yang
- Affiliated Dongguan Hospital, Southern Medical University, Dongguan, Guangdong, 523059, PR China
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, Guangdong, 510080, PR China
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23
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Dasari A, Xue J, Deb S. Magnetic Nanoparticles in Bone Tissue Engineering. NANOMATERIALS 2022; 12:nano12050757. [PMID: 35269245 PMCID: PMC8911835 DOI: 10.3390/nano12050757] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 12/25/2022]
Abstract
Large bone defects with limited intrinsic regenerative potential represent a major surgical challenge and are associated with a high socio-economic burden and severe reduction in the quality of life. Tissue engineering approaches offer the possibility to induce new functional bone regeneration, with the biomimetic scaffold serving as a bridge to create a microenvironment that enables a regenerative niche at the site of damage. Magnetic nanoparticles have emerged as a potential tool in bone tissue engineering that leverages the inherent magnetism of magnetic nano particles in cellular microenvironments providing direction in enhancing the osteoinductive, osteoconductive and angiogenic properties in the design of scaffolds. There are conflicting opinions and reports on the role of MNPs on these scaffolds, such as the true role of magnetism, the application of external magnetic fields in combination with MNPs, remote delivery of biomechanical stimuli in-vivo and magnetically controlled cell retention or bioactive agent delivery in promoting osteogenesis and angiogenesis. In this review, we focus on the role of magnetic nanoparticles for bone-tissue-engineering applications in both disease modelling and treatment of injuries and disease. We highlight the materials-design pathway from implementation strategy through the selection of materials and fabrication methods to evaluation. We discuss the advances in this field and unmet needs, current challenges in the development of ideal materials for bone-tissue regeneration and emerging strategies in the field.
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Affiliation(s)
- Akshith Dasari
- Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, Floor 17 Tower Wing, Guy’s Hospital, London Bridge, London SE19RT, UK; (A.D.); (J.X.)
- Faculty of Life Sciences & Medicine, King’s College London, Guy’s Campus, London SE11UL, UK
| | - Jingyi Xue
- Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, Floor 17 Tower Wing, Guy’s Hospital, London Bridge, London SE19RT, UK; (A.D.); (J.X.)
| | - Sanjukta Deb
- Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, Floor 17 Tower Wing, Guy’s Hospital, London Bridge, London SE19RT, UK; (A.D.); (J.X.)
- Correspondence:
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24
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Kurian AG, Singh RK, Patel KD, Lee JH, Kim HW. Multifunctional GelMA platforms with nanomaterials for advanced tissue therapeutics. Bioact Mater 2022; 8:267-295. [PMID: 34541401 PMCID: PMC8424393 DOI: 10.1016/j.bioactmat.2021.06.027] [Citation(s) in RCA: 129] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023] Open
Abstract
Polymeric hydrogels are fascinating platforms as 3D scaffolds for tissue repair and delivery systems of therapeutic molecules and cells. Among others, methacrylated gelatin (GelMA) has become a representative hydrogel formulation, finding various biomedical applications. Recent efforts on GelMA-based hydrogels have been devoted to combining them with bioactive and functional nanomaterials, aiming to provide enhanced physicochemical and biological properties to GelMA. The benefits of this approach are multiple: i) reinforcing mechanical properties, ii) modulating viscoelastic property to allow 3D printability of bio-inks, iii) rendering electrical/magnetic property to produce electro-/magneto-active hydrogels for the repair of specific tissues (e.g., muscle, nerve), iv) providing stimuli-responsiveness to actively deliver therapeutic molecules, and v) endowing therapeutic capacity in tissue repair process (e.g., antioxidant effects). The nanomaterial-combined GelMA systems have shown significantly enhanced and extraordinary behaviors in various tissues (bone, skin, cardiac, and nerve) that are rarely observable with GelMA. Here we systematically review these recent efforts in nanomaterials-combined GelMA hydrogels that are considered as next-generation multifunctional platforms for tissue therapeutics. The approaches used in GelMA can also apply to other existing polymeric hydrogel systems.
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Affiliation(s)
- Amal George Kurian
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Rajendra K. Singh
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Kapil D. Patel
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
- Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, WC1X8LD, UK
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
- Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
- Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea
- Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
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25
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Soliman BG, Major GS, Atienza-Roca P, Murphy CA, Longoni A, Alcala-Orozco CR, Rnjak-Kovacina J, Gawlitta D, Woodfield TBF, Lim KS. Development and Characterization of Gelatin-Norbornene Bioink to Understand the Interplay between Physical Architecture and Micro-Capillary Formation in Biofabricated Vascularized Constructs. Adv Healthc Mater 2022; 11:e2101873. [PMID: 34710291 DOI: 10.1002/adhm.202101873] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/21/2021] [Indexed: 12/12/2022]
Abstract
The principle challenge for engineering viable, cell-laden hydrogel constructs of clinically-relevant size, is rapid vascularization, in order to moderate the finite capacity of passive nutrient diffusion. A multiscale vascular approach, with large open channels and bulk microcapillaries may be an admissible approach to accelerate this process, promoting overall pre-vascularization for long-term viability of constructs. However, the limited availability of bioinks that possess suitable characteristics that support both fabrication of complex architectures and formation of microcapillaries, remains a barrier to advancement in this space. In this study, gelatin-norbornene (Gel-NOR) is investigated as a vascular bioink with tailorable physico-mechanical properties, which promoted the self-assembly of human stromal and endothelial cells into microcapillaries, as well as being compatible with extrusion and lithography-based biofabrication modalities. Gel-NOR constructs containing self-assembled microcapillaries are successfully biofabricated with varying physical architecture (fiber diameter, spacing, and orientation). Both channel sizes and cell types affect the overall structural changes of the printed constructs, where cross-signaling between both human stromal and endothelial cells may be responsible for the reduction in open channel lumen observed over time. Overall, this work highlights an exciting three-way interplay between bioink formulation, construct design, and cell-mediated response that can be exploited towards engineering vascular tissues.
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Affiliation(s)
- Bram G Soliman
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Gretel S Major
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Pau Atienza-Roca
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Caroline A Murphy
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Alessia Longoni
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Cesar R Alcala-Orozco
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Jelena Rnjak-Kovacina
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, 2006, Australia
| | - Debby Gawlitta
- Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht, GA, 3508, The Netherlands
| | - Tim B F Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
| | - Khoon S Lim
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011, New Zealand
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26
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Liu Y, Fan L, Lin X, Zou L, Li Y, Ge X, Fu W, Zhang Z, Xiao K, Lv H. Functionalized self-assembled peptide RAD/Dentonin hydrogel scaffold promotes dental pulp regeneration. Biomed Mater 2021; 17. [PMID: 34768244 DOI: 10.1088/1748-605x/ac3928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/12/2021] [Indexed: 12/13/2022]
Abstract
RADA16-I is an ion-complementary self-assembled peptide with a regular folded secondary conformation and can be assembled into an ordered nanostructure. Dentonin is an extracellular matrix phosphate glycoprotein functional peptide motif-containing RGD and SGDG motifs. In this experiment, we propose to combine RAD and Dentonin to form a functionalized self-assembled peptide RAD/Dentonin hydrogel scaffold. Furthermore, we expect that the RAD with the addition of functional motif Dentonin can promote pulp regeneration. The study analyzed the physicochemical properties of RAD/Dentonin through circular dichroism, morphology scanning, and rheology. Besides, we examined the scaffold's biocompatibility by immunofluorescent staining, CCK-8 method, Live/Dead fluorescent staining, and 3D reconstruction. Finally, we applied ALP activity assay, RT-qPCR, and Alizarin red S staining to detect the effect of RAD/Dentonin on the odontogenic differentiation of human dental pulp stem cells (hDPSCs). The results showed that RAD/Dentonin spontaneously assembles into a hydrogel with aβ-sheet-based nanofiber network structure.In vitro, RAD/Dentonin has superior biocompatibility and enhances adhesive proliferation, migration, odontogenic differentiation, and mineralization deposition of hDPSCs. In conclusion, the novel self-assembled peptide RAD/Dentonin is a new scaffold material suitable for cell culture and has promising applications as a scaffold for endodontic tissue engineering.
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Affiliation(s)
- Yijuan Liu
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Lina Fan
- The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, Fujian, People's Republic of China
| | - Xuemei Lin
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Luning Zou
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Yaoyao Li
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Xinting Ge
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Weihao Fu
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Zonghao Zhang
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Kuancheng Xiao
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Hongbing Lv
- Fujian Key Laboratory of Oral Diseases, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
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27
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Yu P, Yu F, Xiang J, Zhou K, Zhou L, Zhang Z, Rong X, Ding Z, Wu J, Li W, Zhou Z, Ye L, Yang W. Mechanistically Scoping Cell-Free and Cell-Dependent Artificial Scaffolds in Rebuilding Skeletal and Dental Hard Tissues. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 34:e2107922. [PMID: 34837252 DOI: 10.1002/adma.202107922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/11/2021] [Indexed: 02/06/2023]
Abstract
Rebuilding mineralized tissues in skeletal and dental systems remains costly and challenging. Despite numerous demands and heavy clinical burden over the world, sources of autografts, allografts, and xenografts are far limited, along with massive risks including viral infections, ethic crisis, and so on. Per such dilemma, artificial scaffolds have emerged to provide efficient alternatives. To date, cell-free biomimetic mineralization (BM) and cell-dependent scaffolds have both demonstrated promising capabilities of regenerating mineralized tissues. However, BM and cell-dependent scaffolds have distinctive mechanisms for mineral genesis, which makes them methodically, synthetically, and functionally disparate. Herein, these two strategies in regenerative dentistry and orthopedics are systematically summarized at the level of mechanisms. For BM, methodological and theoretical advances are focused upon; and meanwhile, for cell-dependent scaffolds, it is demonstrated how scaffolds orchestrate osteogenic cell fate. The summary of the experimental advances and clinical progress will endow researchers with mechanistic understandings of artificial scaffolds in rebuilding hard tissues, by which better clinical choices and research directions may be approached.
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Affiliation(s)
- Peng Yu
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Chengdu 610041 China
- College of Polymer Science and Engineering Sichuan University Chengdu 610017 China
| | - Fanyuan Yu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610041 China
- Department of Endodontics West China Stomatology Hospital Sichuan University Chengdu 610041 China
| | - Jie Xiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610041 China
| | - Kai Zhou
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University Chengdu 610041 China
- Department of Orthopedics West China Hospital Sichuan University Chengdu 610041 China
| | - Ling Zhou
- College of Polymer Science and Engineering Sichuan University Chengdu 610017 China
| | - Zhengmin Zhang
- College of Polymer Science and Engineering Sichuan University Chengdu 610017 China
| | - Xiao Rong
- Department of Orthopedics West China Hospital Sichuan University Chengdu 610041 China
| | - Zichuan Ding
- Department of Orthopedics West China Hospital Sichuan University Chengdu 610041 China
| | - Jiayi Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610041 China
- Department of Endodontics West China Stomatology Hospital Sichuan University Chengdu 610041 China
| | - Wudi Li
- College of Polymer Science and Engineering Sichuan University Chengdu 610017 China
| | - Zongke Zhou
- Department of Orthopedics West China Hospital Sichuan University Chengdu 610041 China
| | - Ling Ye
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610041 China
- Department of Endodontics West China Stomatology Hospital Sichuan University Chengdu 610041 China
| | - Wei Yang
- College of Polymer Science and Engineering Sichuan University Chengdu 610017 China
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28
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Gaihre B, Bharadwaz A, Unagolla JM, Jayasuriya AC. Evaluation of the optimal dosage of BMP-9 through the comparison of bone regeneration induced by BMP-9 versus BMP-2 using an injectable microparticle embedded thermosensitive polymeric carrier in a rat cranial defect model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112252. [PMID: 34225891 PMCID: PMC8260961 DOI: 10.1016/j.msec.2021.112252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 05/03/2021] [Accepted: 06/07/2021] [Indexed: 01/07/2023]
Abstract
Bone morphogenetic proteins (BMPs) are well known as enhancers and facilitators of osteogenesis during bone regeneration. The use of recombinant BMP-2 (rhBMP-2) in bone defect healing has drawbacks, which has driven the scouting for alternatives, such as recombinant BMP-9 (rhBMP-9), to provide comparable new bone formation. However, the dosage of rhBMP-9 is quintessential for the facilitation of adequate bone defect healing. Therefore, this study has been designed to evaluate the optimal dosage of BMP-9 by comparing the bone defect healing induced by rhBMP-9 over rhBMP-2. The chitosan (CS) microparticles (MPs), coated with BMPs, were embedded in a thermoresponsive methylcellulose (MC) and calcium alginate (Alg) based injectable delivery system containing a dosage of either 0.5 μg or 1.5 μg of the respective rhBMP per bone defect. A 5 mm critical-sized cranial defect rat model has been used in this study, and bone tissues were harvested at eight weeks post-surgery. The standard tools for comparing the new bone regeneration included micro computerized tomography (micro-CT) and histological analysis. A novel perspective of analyzing the new bone quality and crystallinity was employed by using Raman spectroscopy, along with its elastic modulus quantified through Atomic Force Microscopy (AFM). Results showed that the rhBMP-9 administered at a dosage of 1.5 μg per bone defect, using this delivery system, can adequately facilitate the bone void filling with ample new bone mineralization and crystallinity as compared to rhBMP-2, thus approving the hypothesis for a viable rhBMP-2 alternative.
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Affiliation(s)
- Bipin Gaihre
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH 43607, USA
| | - Angshuman Bharadwaz
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH 43607, USA
| | - Janitha M Unagolla
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH 43607, USA
| | - Ambalangodage C Jayasuriya
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH 43607, USA; Department of Orthopaedic Surgery, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA.
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29
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Mesenchymal Stem Cells, Bioactive Factors, and Scaffolds in Bone Repair: From Research Perspectives to Clinical Practice. Cells 2021; 10:cells10081925. [PMID: 34440694 PMCID: PMC8392210 DOI: 10.3390/cells10081925] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cell-based therapies are promising tools for bone tissue regeneration. However, tracking cells and maintaining them in the site of injury is difficult. A potential solution is to seed the cells onto a biocompatible scaffold. Construct development in bone tissue engineering is a complex step-by-step process with many variables to be optimized, such as stem cell source, osteogenic molecular factors, scaffold design, and an appropriate in vivo animal model. In this review, an MSC-based tissue engineering approach for bone repair is reported. Firstly, MSC role in bone formation and regeneration is detailed. Secondly, MSC-based bone tissue biomaterial design is analyzed from a research perspective. Finally, examples of animal preclinical and human clinical trials involving MSCs and scaffolds in bone repair are presented.
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30
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Salerno A, Netti PA. Review on Computer-Aided Design and Manufacturing of Drug Delivery Scaffolds for Cell Guidance and Tissue Regeneration. Front Bioeng Biotechnol 2021; 9:682133. [PMID: 34249885 PMCID: PMC8264554 DOI: 10.3389/fbioe.2021.682133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/26/2021] [Indexed: 12/11/2022] Open
Abstract
In the last decade, additive manufacturing (AM) processes have updated the fields of biomaterials science and drug delivery as they promise to realize bioengineered multifunctional devices and implantable tissue engineering (TE) scaffolds virtually designed by using computer-aided design (CAD) models. However, the current technological gap between virtual scaffold design and practical AM processes makes it still challenging to realize scaffolds capable of encoding all structural and cell regulatory functions of the native extracellular matrix (ECM) of health and diseased tissues. Indeed, engineering porous scaffolds capable of sequestering and presenting even a complex array of biochemical and biophysical signals in a time- and space-regulated manner, require advanced automated platforms suitable of processing simultaneously biomaterials, cells, and biomolecules at nanometric-size scale. The aim of this work was to review the recent scientific literature about AM fabrication of drug delivery scaffolds for TE. This review focused on bioactive molecule loading into three-dimensional (3D) porous scaffolds, and their release effects on cell fate and tissue growth. We reviewed CAD-based strategies, such as bioprinting, to achieve passive and stimuli-responsive drug delivery scaffolds for TE and cancer precision medicine. Finally, we describe the authors' perspective regarding the next generation of CAD techniques and the advantages of AM, microfluidic, and soft lithography integration for enhancing 3D porous scaffold bioactivation toward functional bioengineered tissues and organs.
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Affiliation(s)
| | - Paolo A. Netti
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, Naples, Italy
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Interdisciplinary Research Center on Biomaterials, University of Naples Federico II, Naples, Italy
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Huang D, Li R, Ren J, Luo H, Wang W, Zhou C. Temporal induction of Lhx8 by optogenetic control system for efficient bone regeneration. Stem Cell Res Ther 2021; 12:339. [PMID: 34112263 PMCID: PMC8194135 DOI: 10.1186/s13287-021-02412-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The spatiotemporal regulation of essential genes is crucial for controlling the growth and differentiation of cells in a precise manner during regeneration. Recently, optogenetics was considered as a potent technology for sophisticated regulation of target genes, which might be a promising tool for regenerative medicine. In this study, we used an optogenetic control system to precisely regulate the expression of Lhx8 to promote efficient bone regeneration. METHODS Quantitative real-time PCR and western blotting were used to detect the expression of Lhx8 and osteogenic marker genes. Alkaline phosphatase staining and alizarin red staining were used to detect alkaline phosphatase activity and calcium nodules. A customized optogenetic expression system was constructed to regulate Lhx8, of which the expression was activated in blue light but not in dark. We also used a critical calvarial defect model for the analysis of bone regeneration in vivo. Moreover, micro-computed tomography (micro-CT), three-dimensional reconstruction, quantitative bone measurement, and histological and immunohistochemistry analysis were performed to investigate the formation of new bone in vivo. RESULTS During the osteogenic differentiation of BMSCs, the expression levels of Lhx8 increased initially but then decreased thereafter. Lhx8 promoted the early proliferation of BMSCs but inhibited subsequent osteogenic differentiation. The optogenetic activation of Lhx8 in BMSCs in the early stages of differentiation by blue light stimulation led to a significant increase in cell proliferation, thus allowing a sufficient number of differentiating BMSCs to enter the later osteogenic differentiation stage. Analysis of the critical calvarial defect model revealed that the pulsed optogenetic activation of Lhx8 in transplanted BMSCs over a 5-day period led to a significant increase in the generation of bone in vivo. CONCLUSIONS Lhx8 plays a critical role in balancing proliferation and osteogenic differentiation in BMSCs. The optogenetic activation of Lhx8 expression at early stage of BMSCs differentiation led to better osteogenesis, which would be a promising strategy for precise bone regeneration.
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Affiliation(s)
- Delan Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Guangzhou, 510055, China
| | - Runze Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Guangzhou, 510055, China
| | - Jianhan Ren
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Guangzhou, 510055, China
| | - Haotian Luo
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Guangzhou, 510055, China
| | - Weicai Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Guangzhou, 510055, China.
| | - Chen Zhou
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Guangzhou, 510055, China.
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Lou Y, Wang H, Ye G, Li Y, Liu C, Yu M, Ying B. Periosteal Tissue Engineering: Current Developments and Perspectives. Adv Healthc Mater 2021; 10:e2100215. [PMID: 33938636 DOI: 10.1002/adhm.202100215] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/18/2021] [Indexed: 12/22/2022]
Abstract
Periosteum, a highly vascularized bilayer connective tissue membrane plays an indispensable role in the repair and regeneration of bone defects. It is involved in blood supply and delivery of progenitor cells and bioactive molecules in the defect area. However, sources of natural periosteum are limited, therefore, there is a need to develop tissue-engineered periosteum (TEP) mimicking the composition, structure, and function of natural periosteum. This review explores TEP construction strategies from the following perspectives: i) different materials for constructing TEP scaffolds; ii) mechanical properties and surface topography in TEP; iii) cell-based strategies for TEP construction; and iv) TEP combined with growth factors. In addition, current challenges and future perspectives for development of TEP are discussed.
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Affiliation(s)
- Yiting Lou
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
- Department of Stomatology, The Ningbo Hospital of Zhejiang University, and Ningbo First Hospital, 59 Liuting street, Ningbo, Zhejiang, 315000, China
| | - Huiming Wang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Guanchen Ye
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Yongzheng Li
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Chao Liu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Mengfei Yu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Binbin Ying
- Department of Stomatology, The Ningbo Hospital of Zhejiang University, and Ningbo First Hospital, 59 Liuting street, Ningbo, Zhejiang, 315000, China
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Zhu G, Zhang T, Chen M, Yao K, Huang X, Zhang B, Li Y, Liu J, Wang Y, Zhao Z. Bone physiological microenvironment and healing mechanism: Basis for future bone-tissue engineering scaffolds. Bioact Mater 2021; 6:4110-4140. [PMID: 33997497 PMCID: PMC8091181 DOI: 10.1016/j.bioactmat.2021.03.043] [Citation(s) in RCA: 136] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/19/2021] [Accepted: 03/28/2021] [Indexed: 02/06/2023] Open
Abstract
Bone-tissue defects affect millions of people worldwide. Despite being common treatment approaches, autologous and allogeneic bone grafting have not achieved the ideal therapeutic effect. This has prompted researchers to explore novel bone-regeneration methods. In recent decades, the development of bone tissue engineering (BTE) scaffolds has been leading the forefront of this field. As researchers have provided deep insights into bone physiology and the bone-healing mechanism, various biomimicking and bioinspired BTE scaffolds have been reported. Now it is necessary to review the progress of natural bone physiology and bone healing mechanism, which will provide more valuable enlightenments for researchers in this field. This work details the physiological microenvironment of the natural bone tissue, bone-healing process, and various biomolecules involved therein. Next, according to the bone physiological microenvironment and the delivery of bioactive factors based on the bone-healing mechanism, it elaborates the biomimetic design of a scaffold, highlighting the designing of BTE scaffolds according to bone biology and providing the rationale for designing next-generation BTE scaffolds that conform to natural bone healing and regeneration.
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Affiliation(s)
- Guanyin Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Tianxu Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Miao Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Ke Yao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Xinqi Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Bo Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Yazhen Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Jun Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610041, PR China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
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Abdelgawad ME, Desterke C, Uzan G, Naserian S. Single-cell transcriptomic profiling and characterization of endothelial progenitor cells: new approach for finding novel markers. Stem Cell Res Ther 2021; 12:145. [PMID: 33627177 PMCID: PMC7905656 DOI: 10.1186/s13287-021-02185-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/24/2021] [Indexed: 12/14/2022] Open
Abstract
Background Endothelial progenitor cells (EPCs) are promising candidates for the cellular therapy of peripheral arterial and cardiovascular diseases. However, hitherto there is no specific marker(s) defining precisely EPCs. Herein, we are proposing a new in silico approach for finding novel EPC markers. Methods We assembled five groups of chosen EPC-related genes/factors using PubMed literature and Gene Ontology databases. This shortened database of EPC factors was fed into publically published transcriptome matrix to compare their expression between endothelial colony-forming cells (ECFCs), HUVECs, and two adult endothelial cell types (ECs) from the skin and adipose tissue. Further, the database was used for functional enrichment on Mouse Phenotype database and protein-protein interaction network analyses. Moreover, we built a digital matrix of healthy donors’ PBMCs (33 thousand single-cell transcriptomes) and analyzed the expression of these EPC factors. Results Transcriptome analyses showed that BMP2, 4, and ephrinB2 were exclusively highly expressed in EPCs; the expression of neuropilin-1 and VEGF-C were significantly higher in EPCs and HUVECs compared with other ECs; Notch 1 was highly expressed in EPCs and skin-ECs; MIR21 was highly expressed in skin-ECs; PECAM-1 was significantly higher in EPCs and adipose ECs. Moreover, functional enrichment of EPC-related genes on Mouse Phenotype and STRING protein database has revealed significant relations between chosen EPC factors and endothelial and vascular functions, development, and morphogenesis, where ephrinB2, BMP2, and BMP4 were highly expressed in EPCs and were connected to abnormal vascular functions. Single-cell RNA-sequencing analyses have revealed that among the EPC-regulated markers in transcriptome analyses, (i) ICAM1 and Endoglin were weekly expressed in the monocyte compartment of the peripheral blood; (ii) CD163 and CD36 were highly expressed in the CD14+ monocyte compartment whereas CSF1R was highly expressed in the CD16+ monocyte compartment, (iii) L-selectin and IL6R were globally expressed in the lymphoid/myeloid compartments, and (iv) interestingly, PLAUR/UPAR and NOTCH2 were highly expressed in both CD14+ and CD16+ monocytic compartments. Conclusions The current study has identified novel EPC markers that could be used for better characterization of EPC subpopulation in adult peripheral blood and subsequent usage of EPCs for various cell therapy and regenerative medicine applications.
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Affiliation(s)
- Mohamed Essameldin Abdelgawad
- Biochemistry & Molecular Biotechnology Division, Chemistry Department, Faculty of Science; Innovative Cellular Microenvironment Optimization Platform (ICMOP), Helwan University, Cairo, Egypt. .,Inserm UMR-S-MD 1197, Hôpital Paul Brousse - Bâtiment Lavoisier, 12-14 avenue Paul Vaillant Couturier, 94800, Villejuif, France. .,Paris-Saclay University, Villejuif, France.
| | - Christophe Desterke
- Paris-Saclay University, Villejuif, France.,Inserm UMR-S-MD A9, Hôpital Paul Brousse, Villejuif, France
| | - Georges Uzan
- Inserm UMR-S-MD 1197, Hôpital Paul Brousse - Bâtiment Lavoisier, 12-14 avenue Paul Vaillant Couturier, 94800, Villejuif, France.,Paris-Saclay University, Villejuif, France
| | - Sina Naserian
- Inserm UMR-S-MD 1197, Hôpital Paul Brousse - Bâtiment Lavoisier, 12-14 avenue Paul Vaillant Couturier, 94800, Villejuif, France. .,Paris-Saclay University, Villejuif, France. .,CellMedEx, Saint Maur des Fossés, France.
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Zhang R, Liu Y, Qi Y, Zhao Y, Nie G, Wang X, Zheng S. Self-assembled peptide hydrogel scaffolds with VEGF and BMP-2 enhanced in vitro angiogenesis and osteogenesis. Oral Dis 2021; 28:723-733. [PMID: 33512051 DOI: 10.1111/odi.13785] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/16/2021] [Accepted: 01/24/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The reconstruction of bone defects remains a major clinical issue. Our study aims to investigate the ability of RATEA16 (RA, [CH3CONH] RADARADARADARADA-[CONH2]) for the sustained delivering VEGF and BMP-2 to promote angiogenesis and osteogenesis in bone reconstruction. MATERIALS AND METHODS We prepared and investigated the characterization of RATEA16. The survival of human umbilical vein endothelial cells (HUVECs) and human stem cells of the apical papilla (SCAPs) encapsulated in RATEA16 hydrogel was detected. Then, we established RA-VEGF/BMP-2 drug delivery systems and measured their drug release pattern. The effects of RA-VEGF scaffolds on HUVECs angiogenesis were investigated in vitro. Then, osteoblastic differentiation capacity of SCAPs with RA-BMP-2 scaffolds was analyzed by ALP activity and expression of osteoblast-related genes. RESULTS A porous nanofiber microstructure endowed this scaffold with the ability to maintain the survival of HUVECs and SCAPs. The RA-VEGF/BMP-2 drug delivery systems exhibited several advantagesin vitro: injectability, biodegradability, good biocompatibility, and noncytotoxicity. Released rhVEGF165 /BMP-2 were proved to promote angiogenesis of HUVECs as well as osteogenesis of SCAPs abilities. CONCLUSION RATEA16 loading with VEGF and BMP-2 might be a potential clinical strategy for tissue engineering, especially in bone reconstruction, due to its ability of delivering growth factors effectively and efficiently.
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Affiliation(s)
- Ruijuan Zhang
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Yang Liu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Yingqiu Qi
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Ying Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, PR China
| | - Guangjun Nie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, PR China
| | - Xiaozhe Wang
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Shuguo Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
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Ghavimi MA, Bani Shahabadi A, Jarolmasjed S, Memar MY, Maleki Dizaj S, Sharifi S. Nanofibrous asymmetric collagen/curcumin membrane containing aspirin-loaded PLGA nanoparticles for guided bone regeneration. Sci Rep 2020; 10:18200. [PMID: 33097790 PMCID: PMC7584591 DOI: 10.1038/s41598-020-75454-2] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/15/2020] [Indexed: 01/08/2023] Open
Abstract
The goal of the current study was to develop an asymmetric guided bone regeneration (GBR) membrane benefiting from curcumin and aspirin. The membrane was prepared using electrospinning technique and then was physic-chemically characterized by the conventional methods. The release profile of aspirin from the prepared membrane was also measured by ultraviolet spectrophotometry. Also, the antibacterial activities of the membrane was evaluated. We also assessed the in vitro effects of the prepared membrane on the biocompatibility and osteogenic differentiation of dental pulp stem cells (DPSCs), and evaluated in vivo bone regeneration using the prepared membrane in the defects created in both sides of the dog’s jaw by histology. The results from the characterization specified that the membrane was successfully prepared with monodispersed nanosized fibers, uniform network shaped morphology, negative surface charge and sustained release platform for aspirin. The membrane also showed antimicrobial effects against all tested bacteria. The presence of curcumin and aspirin in the asymmetric membrane enhanced osteogenic potential at both transcriptional and translational levels. The results of the animal test showed that the test area was completely filled with new bone after just 28 days, while the commercial membrane area remained empty. There was also a soft tissue layer above the new bone area in the test side. We suggested that the prepared membrane in this work could be used as a GBR membrane to keep soft tissue from occupying bone defects in GBR surgeries. Besides, the surgeries can be benefited from antibacterial activities and bone healing effects of this novel GBR membrane while, simultaneously, promoting bone regeneration.
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Affiliation(s)
- Mohammad Ali Ghavimi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Bani Shahabadi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyedhosein Jarolmasjed
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Mohammad Yousef Memar
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Maleki Dizaj
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. .,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Zheng Z, Yu C, Wei H. Injectable Hydrogels as Three-Dimensional Network Reservoirs for Osteoporosis Treatment. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:430-454. [PMID: 33086984 DOI: 10.1089/ten.teb.2020.0168] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Despite tremendous progresses made in the field of tissue engineering over the past several decades, it remains a significant challenge for the treatment of osteoporosis (OP) due to the lack of appropriate carriers to improve the bioavailability of therapeutic agents and the unavailability of artificial bone matrix with desired properties for the replacement of damaged bone regions. Encouragingly, the development of injectable hydrogels for the treatment of OP has attracted increasing attention in recent years because they can serve either as a reservoir for various therapeutic species or as a perfect filler for bone injuries with irregular shapes. However, the relationship between the complicated pathological mechanism of OP and the properties of diverse polymeric materials lacks elucidation, which clearly hampers the clinical application of injectable hydrogels for the efficient treatment of OP. To clarify this relationship, this article summarized both localized and systematic treatment of OP using an injectable hydrogel-based strategy. Specifically, the pathogenesis of OP and the limitations of current treatment approaches were first analyzed. We further focused on the use of hydrogels loaded with various therapeutic substances following a classification standard of the encapsulated cargoes for OP treatment with an emphasis on the application and precautions of each category. A concluding remark on existing challenges and future directions of this rapidly developing research area was finally made. Impact statement Effective osteoporosis (OP) treatment remains a significant challenge due substantially to the unavailability of appropriate drug carriers and artificial matrices with desired properties to promote bone repair and replace damaged regions. For this purpose, this review focused on the development of diverse injectable hydrogel systems for the delivery of various therapeutic agents, including drugs, stem cells, and nucleic acids, for effective increase in bone mass and favorable osteogenesis. The summarized important guidelines are believed to promote clinical development and translation of hydrogels for the efficient treatment of OP and OP-related bone damages toward improved life quality of millions of patients.
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Affiliation(s)
- Zhi Zheng
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study and School of Pharmaceutical Science, University of South China, Hengyang, China
| | - Cuiyun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study and School of Pharmaceutical Science, University of South China, Hengyang, China
| | - Hua Wei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study and School of Pharmaceutical Science, University of South China, Hengyang, China
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Salehi M, Bastami F, Rezai Rad M, Nokhbatolfoghahaei H, Paknejad Z, Nazeman P, Hassani A, Khojasteh A. Investigation of cell‐free poly lactic acid/nanoclay scaffolds prepared via thermally induced phase separation technique containing hydroxyapatite nanocarriers of erythropoietin for bone tissue engineering applications. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Majid Salehi
- Department of Tissue Engineering, School of Medicine Shahroud University of Medical Sciences Shahroud Iran
- Tissue Engineering and Stem Cell Research Center Shahroud University of Medical Sciences Shahroud Iran
| | - Farshid Bastami
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Hanieh Nokhbatolfoghahaei
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Zahrasadat Paknejad
- Medical Nanotechnology and Tissue Engineering Research Center Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Pantea Nazeman
- Department of Periodontics, School of Dentistry University of Washington Seattle WA USA
| | - Ali Hassani
- Department of Oral and Maxillofacial Surgery and Implant Research Center Islamic Azad University, Tehran Dental Branch Tehran Iran
| | - Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry Shahid Beheshti University of Medical Sciences Tehran Iran
- Department of Tissue Engineering, School of Advanced Technologies in Medicine Shahid Beheshti University of Medical Sciences Tehran Iran
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Oliver JD, Jia S, Halpern LR, Graham EM, Turner EC, Colombo JS, Grainger DW, D'Souza RN. Innovative Molecular and Cellular Therapeutics in Cleft Palate Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:215-237. [PMID: 32873216 DOI: 10.1089/ten.teb.2020.0181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Clefts of the lip and/or palate are the most prevalent orofacial birth defects occurring in about 1:700 live human births worldwide. Early postnatal surgical interventions are extensive and staged to bring about optimal growth and fusion of palatal shelves. Severe cleft defects pose a challenge to correct with surgery alone, resulting in complications and sequelae requiring life-long, multidisciplinary care. Advances made in materials science innovation, including scaffold-based delivery systems for precision tissue engineering, now offer new avenues for stimulating bone formation at the site of surgical correction for palatal clefts. In this study, we review the present scientific literature on key developmental events that can go awry in palate development and the common surgical practices and challenges faced in correcting cleft defects. How key osteoinductive pathways implicated in palatogenesis inform the design and optimization of constructs for cleft palate correction is discussed within the context of translation to humans. Finally, we highlight new osteogenic agents and innovative delivery systems with the potential to be adopted in engineering-based therapeutic approaches for the correction of palatal defects. Impact statement Tissue-engineered scaffolds supplemented with osteogenic growth factors have attractive, largely unexplored possibilities to modulate molecular signaling networks relevant to driving palatogenesis in the context of congenital anomalies (e.g., cleft palate). Constructs that address this need may obviate current use of autologous bone grafts, thereby avoiding donor-site morbidity and other regenerative challenges in patients afflicted with palatal clefts. Combinations of biomaterials and drug delivery of diverse regenerative cues and biologics are currently transforming strategies exploited by engineers, scientists, and clinicians for palatal cleft repair.
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Affiliation(s)
- Jeremie D Oliver
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Shihai Jia
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Leslie R Halpern
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Emily M Graham
- School of Medicine, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Emma C Turner
- University of Western Australia Dental School, Perth, Western Australia
| | - John S Colombo
- University of Las Vegas at Nevada School of Dental Medicine, Las Vegas, Nevada, USA
| | - David W Grainger
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA.,Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Rena N D'Souza
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA.,School of Medicine, University of Utah Health Sciences, Salt Lake City, Utah, USA
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Combined Delivery of Two Different Bioactive Factors Incorporated in Hydroxyapatite Microcarrier for Bone Regeneration. Tissue Eng Regen Med 2020; 17:607-624. [PMID: 32803541 DOI: 10.1007/s13770-020-00257-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/03/2020] [Accepted: 03/24/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The delivery of growth factors using a carrier system presents a promising and innovative tool in tissue engineering and dentistry today. Two of the foremost bioactive factors, bone morphogenetic protein-2 and vascular endothelial growth factor (VEGF), are widely applied using a ceramic scaffold. The aim of this study was to determine the use of hydroxyapatite microcarrier (MC) for dual delivery of osteogenic and angiogenic factors to accelerate hard tissue regeneration during the regenerative process. METHODS Two MCs of different sizes were fabricated by emulsification of gelatin and alpha-tricalcium phosphate (α-TCP). The experimental group was divided based on the combination of MC size and growth factors. For investigating the in vitro properties, rat mesenchymal stem cells (rMSCs) were harvested from bone marrow of the femur and tibia. For in vivo experiments, MC with/without growth factors was applied into the standardized, 5-mm diameter defects, which were made bilaterally on the parietal bone of the rat. The animals were allowed to heal for 8 weeks, and samples were harvested and analyzed by micro-computed tomography and histology. RESULTS Improved proliferation of rat mesenchymal stem cells was observed with VEGF loaded MC. For osteogenic differentiation, dual growth factors delivered by MC showed higher osteogenic gene expression, alkaline phosphatse production and calcium deposition. The in vivo results revealed statistically significant increase in new bone formation when dual growth factors were delivered by MC. Dual growth factors administered on a calcium phosphate matrix showed significantly enhanced osteogenic potential. CONCLUSION We propose this system has potential clinical utility in providing solutions for craniofacial bone defects, with the added benefit of early availability.
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Dashtimoghadam E, Fahimipour F, Tongas N, Tayebi L. Microfluidic fabrication of microcarriers with sequential delivery of VEGF and BMP-2 for bone regeneration. Sci Rep 2020; 10:11764. [PMID: 32678204 PMCID: PMC7366644 DOI: 10.1038/s41598-020-68221-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 05/26/2020] [Indexed: 12/21/2022] Open
Abstract
Wound instability and poor functional vascularization in bone tissue engineering lead to lack of tissue integration and ultimate failure of engineered grafts. In order to harness the regenerative potential of growth factors and stimulate bone healing, present study aims to design multifunctional cell therapy microcarriers with the capability of sequential delivery of essential growth factors, bone morphogenetic protein 2 (BMP-2) and vascular endothelial growth factor (VEGF). An on-chip double emulsion method was implemented to generate monodisperse VEGF encapsulated microcarriers. Bio-inspired poly(3,4-dihydroxyphenethylamine) (PDA) was then functionalized to the microcarriers surface for BMP-2 conjugation. The microcarriers were seeded with mesenchymal stem cells (MSCs) using a dynamic culture technique for cells expansion. Finally, the microcarriers were incorporated into an injectable alginate-RGD hydrogel laden with endothelial cells (ECs) for further analysis. The DNA and calcium content, as well as ALP activity of the construct were analyzed. The confocal fluorescent microscopy was employed to monitor the MSCs and tunneling structure of ECs. Eventually, the capability of developed microcarriers for bone tissue formation was examined in vivo. Microfluidic platform generated monodisperse VEGF-loaded PLGA microcarriers with size-dependent release patterns. Microcarriers generated with the on-chip technique showed more sustained VEGF release profiles compared to the conventional bulk mixing method. The PDA functionalization of microcarriers surface not only provided immobilization of BMP-2 with prolonged bioavailability, but also enhanced the attachment and proliferation of MSCs. Dynamic culturing of microcarriers showcased their great potential to boost MSCs population required for stem cell therapy of bone defects. ALP activity and calcium content analysis of MSCs-laden microcarriers loaded into injectable hydrogels revealed their capability of tunneling formation, vascular cell growth and osteogenic differentiation. The in vivo histology and real-time polymerase chain reaction analysis revealed that transplantation of MSC-laden microcarriers supports ectopic bone formation in the rat model. The presented approach to design bioactive microcarriers offer sustained sequential delivery of bone ECM chemical cues and offer an ideal stabilized 3D microenvironment for patient-specific cell therapy applications. The proposed methodology is readily expandable to integrate other cells and cytokines in a tuned spatiotemporal manner for personalized regenerative medicine.
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Affiliation(s)
| | - Farahnaz Fahimipour
- Marquette University School of Dentistry, Milwaukee, WI, USA
- Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nikita Tongas
- Marquette University School of Dentistry, Milwaukee, WI, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, USA.
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Ibrahim A, Rodriguez-Florez N, Gardner OFW, Zucchelli E, New SEP, Borghi A, Dunaway D, Bulstrode NW, Ferretti P. Three-dimensional environment and vascularization induce osteogenic maturation of human adipose-derived stem cells comparable to that of bone-derived progenitors. Stem Cells Transl Med 2020; 9:1651-1666. [PMID: 32639692 PMCID: PMC7695642 DOI: 10.1002/sctm.19-0207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 05/26/2020] [Accepted: 06/10/2020] [Indexed: 12/12/2022] Open
Abstract
While human adipose‐derived stem cells (hADSCs) are known to possess osteogenic differentiation potential, the bone tissues formed are generally considered rudimentary and immature compared with those made by bone‐derived precursor cells such as human bone marrow‐derived mesenchymal stem cells (hBMSCs) and less commonly studied human calvarium osteoprogenitor cells (hOPs). Traditional differentiation protocols have tended to focus on osteoinduction of hADSCs through the addition of osteogenic differentiation media or use of stimulatory bioactive scaffolds which have not resulted in mature bone formation. Here, we tested the hypothesis that by reproducing the physical as well as biochemical bone microenvironment through the use of three‐dimensional (3D) culture and vascularization we could enhance osteogenic maturation in hADSCs. In addition to biomolecular characterization, we performed structural analysis through extracellular collagen alignment and mineral density in our bone tissue engineered samples to evaluate osteogenic maturation. We further compared bone formed by hADSCs, hBMSCs, and hOPs against mature human pediatric calvarial bone, yet not extensively investigated. Although bone generated by all three cell types was still less mature than native pediatric bone, a fibrin‐based 3D microenvironment together with vascularization boosted osteogenic maturation of hADSC making it similar to that of bone‐derived osteoprogenitors. This demonstrates the important role of vascularization and 3D culture in driving osteogenic maturation of cells easily available but constitutively less committed to this lineage and suggests a crucial avenue for recreating the bone microenvironment for tissue engineering of mature craniofacial bone tissues from pediatric hADSCs, as well as hBMSCs and hOPs.
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Affiliation(s)
- Amel Ibrahim
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Naiara Rodriguez-Florez
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,TECNUN Escuela de Ingenieros, Universidad de Navarra, San Sebastian, Spain
| | - Oliver F W Gardner
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Eleonora Zucchelli
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Sophie E P New
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Alessandro Borghi
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - David Dunaway
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK.,Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Neil W Bulstrode
- Department of Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Patrizia Ferretti
- Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, London, UK
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Ghaeini-Hesaroeiye S, Razmi Bagtash H, Boddohi S, Vasheghani-Farahani E, Jabbari E. Thermoresponsive Nanogels Based on Different Polymeric Moieties for Biomedical Applications. Gels 2020; 6:E20. [PMID: 32635573 PMCID: PMC7559285 DOI: 10.3390/gels6030020] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/21/2020] [Accepted: 06/25/2020] [Indexed: 12/16/2022] Open
Abstract
Nanogels, or nanostructured hydrogels, are one of the most interesting materials in biomedical engineering. Nanogels are widely used in medical applications, such as in cancer therapy, targeted delivery of proteins, genes and DNAs, and scaffolds in tissue regeneration. One salient feature of nanogels is their tunable responsiveness to external stimuli. In this review, thermosensitive nanogels are discussed, with a focus on moieties in their chemical structure which are responsible for thermosensitivity. These thermosensitive moieties can be classified into four groups, namely, polymers bearing amide groups, ether groups, vinyl ether groups and hydrophilic polymers bearing hydrophobic groups. These novel thermoresponsive nanogels provide effective drug delivery systems and tissue regeneration constructs for treating patients in many clinical applications, such as targeted, sustained and controlled release.
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Affiliation(s)
- Sobhan Ghaeini-Hesaroeiye
- Biomedical Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115, Iran; (S.G.-H.); (H.R.B.)
| | - Hossein Razmi Bagtash
- Biomedical Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115, Iran; (S.G.-H.); (H.R.B.)
| | - Soheil Boddohi
- Biomedical Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115, Iran; (S.G.-H.); (H.R.B.)
| | - Ebrahim Vasheghani-Farahani
- Biomedical Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115, Iran; (S.G.-H.); (H.R.B.)
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA;
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Zhang W, Ling C, Zhang A, Liu H, Jiang Y, Li X, Sheng R, Yao Q, Chen J. An all-silk-derived functional nanosphere matrix for sequential biomolecule delivery and in situ osteochondral regeneration. Bioact Mater 2020; 5:832-843. [PMID: 32637747 PMCID: PMC7321772 DOI: 10.1016/j.bioactmat.2020.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/23/2020] [Accepted: 05/23/2020] [Indexed: 02/06/2023] Open
Abstract
Endogenous repair of osteochondral defect is usually limited by the insufficient number of cells in the early stage and incomplete cell differentiation in the later stage. The development of drug delivery systems for sequential release of pro-migratory and pro-chondrogenic molecules to induce endogenous bone marrow-derived mesenchymal stem cells (BMSCs) recruitment and chondrogenic differentiation is highly desirable for in situ osteochondral regeneration. In this study, a novel, all-silk-derived sequential delivery system was fabricated by incorporating the tunable drug-loaded silk fibroin (SF) nanospheres into a SF porous matrix. The loading efficiency and release kinetics of biomolecules depended on the initial SF/polyvinyl alcohol (PVA) concentrations (0.2%, 1% and 5%) of the nanospheres, as well as the hydrophobicity of the loaded molecules, resulting in controllable and programmed delivery profiles. Our findings indicated that the 5% nanosphere-incorporated matrix showed a rapid release of E7 peptide during the first 120 h, whereas the 0.2% nanosphere-incorporated matrix provided a slow and sustained release of Kartogenin (KGN) longer than 30 days. During in vitro culture of BMSCs, this functional SF matrix incorporated with E7/KGN nanospheres showed good biocompatibility, as well as enhanced BMSCs migration and chondrogenic differentiation through the release of E7 and KGN. Furthermore, when implanted into rabbit osteochondral defect, the SF nanosphere matrix with sequential E7/KGN release promoted the regeneration of both cartilage and subchondral bone. This work not only provided a novel all-silk-derived drug delivery system for sequential release of molecules, but also a functional tissue-engineered scaffold for osteochondral regeneration. An all-silk-derived sequential biomolecule delivery system is developed. The release profiles of both hydrophilic and hydrophobic molecules from the SF nanosphere matrix can be easily tuned. This SF nanosphere matrix induces BMSCs recruitment and chondrogenic differentiation by programmed release of E7 and KGN. The SF nanosphere matrix with sequential E7/KGN release improves the regeneration of cartilage and subchondral bone in vivo..
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Affiliation(s)
- Wei Zhang
- School of Medicine, Southeast University, 210009, Nanjing, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096, Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), China
- Corresponding author. School of Medicine, Southeast University, 210009, Nanjing, China.
| | - Chen Ling
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Aini Zhang
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Haoyang Liu
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Yujie Jiang
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Xiaolong Li
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Renwang Sheng
- School of Medicine, Southeast University, 210009, Nanjing, China
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), China
- Corresponding author. Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China.
| | - Jialin Chen
- School of Medicine, Southeast University, 210009, Nanjing, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096, Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), China
- Corresponding author. School of Medicine, Southeast University, 210009, Nanjing, China.
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45
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Zhang W, Shi W, Wu S, Kuss M, Jiang X, Untrauer JB, Reid SP, Duan B. 3D printed composite scaffolds with dual small molecule delivery for mandibular bone regeneration. Biofabrication 2020; 12:035020. [PMID: 32369796 PMCID: PMC8059098 DOI: 10.1088/1758-5090/ab906e] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Functional reconstruction of craniomaxillofacial defects is challenging, especially for the patients who suffer from traumatic injury, cranioplasty, and oncologic surgery. Three-dimensional (3D) printing/bioprinting technologies provide a promising tool to fabricate bone tissue engineering constructs with complex architectures and bioactive components. In this study, we implemented multi-material 3D printing to fabricate 3D printed PCL/hydrogel composite scaffolds loaded with dual bioactive small molecules (i.e. resveratrol and strontium ranelate). The incorporated small molecules are expected to target several types of bone cells. We systematically studied the scaffold morphologies and small molecule release profiles. We then investigated the effects of the released small molecules from the drug loaded scaffolds on the behavior and differentiation of mesenchymal stem cells (MSCs), monocyte-derived osteoclasts, and endothelial cells. The 3D printed scaffolds, with and without small molecules, were further implanted into a rat model with a critical-sized mandibular bone defect. We found that the bone scaffolds containing the dual small molecules had combinational advantages in enhancing angiogenesis and inhibiting osteoclast activities, and they synergistically promoted MSC osteogenic differentiation. The dual drug loaded scaffolds also significantly promoted in vivo mandibular bone formation after 8 week implantation. This work presents a 3D printing strategy to fabricate engineered bone constructs, which can likely be used as off-the-shelf products to promote craniomaxillofacial regeneration.
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Affiliation(s)
- Wenhai Zhang
- First Hip Department of Orthopedics, Tianjin Hospital, Tianjin, 300211, China
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Wen Shi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Shaohua Wu
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- College of Textiles & Clothing; Collaborative Innovation Center of Marine Biomass Fibers, Qingdao University, Qingdao, China
| | - Mitchell Kuss
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Xiping Jiang
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- College of Medicine, Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jason B Untrauer
- Division of Oral & Maxillofacial Surgery, Department of Surgery, College of Medicine, University of Nebraska Medical Center, Omaha, NE
| | - St Patrick Reid
- College of Medicine, Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Mechanical and Materials Engineering, University of Nebraska- Lincoln, Lincoln, NE, USA
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46
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Barati D, Watkins K, Wang Z, Yang F. Injectable and Crosslinkable PLGA-Based Microribbons as 3D Macroporous Stem Cell Niche. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905820. [PMID: 32338432 DOI: 10.1002/smll.201905820] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/03/2020] [Accepted: 02/18/2020] [Indexed: 06/11/2023]
Abstract
Poly(lactide-co-glycolide) (PLGA) has been widely used as a tissue engineering scaffold. However, conventional PLGA scaffolds are not injectable, and do not support direct cell encapsulation, leading to poor cell distribution in 3D. Here, a method for fabricating injectable and intercrosslinkable PLGA microribbon-based macroporous scaffolds as 3D stem cell niche is reported. PLGA is first fabricated into microribbon-shape building blocks with tunable width using microcontact printing, then coated with fibrinogen to enhance solubility and injectability using aqueous solution. Upon mixing with thrombin, firbornogen-coated PLGA microribbons can intercrosslink into 3D scaffolds. When subject to cyclic compression, PLGA microribbon scaffolds exhibit great shock-absorbing capacity and return to their original shape, while conventional PLGA scaffolds exhibit permanent deformation after one cycle. Using human mesenchymal stem cells (hMSCs) as a model cell type, it is demonstrated that PLGA μRB scaffolds support homogeneous cell encapsulation, and robust cell spreading and proliferation in 3D. After 28 days of culture in osteogenic medium, hMSC-seeded PLGA μRB scaffolds exhibit an increase in compressive modulus and robust bone formation as shown by staining of alkaline phosphatase, mineralization, and collagen. Together, the results validate PLGA μRBs as a promising injectable, macroporous, non-hydrogel-based scaffold for cell delivery and tissue regeneration applications.
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Affiliation(s)
- Danial Barati
- Department of Orthopedic Surgery, Stanford School of Medicine, Stanford, CA, 94305, USA
| | - Kira Watkins
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Zhibin Wang
- Department of Orthopedic Surgery, Stanford School of Medicine, Stanford, CA, 94305, USA
| | - Fan Yang
- Department of Orthopedic Surgery, Stanford School of Medicine, Stanford, CA, 94305, USA
- Department of Bioengineering, Stanford School of Medicine, Stanford, CA, 94305, USA
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47
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Rather HA, Patel R, Yadav UCS, Vasita R. Dual drug-delivering polycaprolactone-collagen scaffold to induce early osteogenic differentiation and coupled angiogenesis. ACTA ACUST UNITED AC 2020; 15:045008. [PMID: 32427577 DOI: 10.1088/1748-605x/ab7978] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bone regeneration is a multi-step, overlapping process, in which angiogenesis and osteogenesis are the key players. Several attempts have been made to promote angiogenesis-coupled osteogenesis using scaffolding technology. However, the recreation of functional vasculature during bone regeneration is an unparalleled challenge. In this study, a dual drug-delivering polycaprolactone-collagen fibrous scaffold is reported to promote early osteogenesis and angiogenesis. Simvastatin as a pro-angiogenic and dexamethasone as an osteoinductive drug were encapsulated to functionalize the electrospun fibers. The optically transparent fibrous mat represented the sustained and sequential release of drugs for 28 days. The fibrous mesh increased cell proliferation and enhanced the osteogenic differentiation up to 21 days. The alkaline phosphatase activity and mineral deposition were comparatively higher on dual drug-releasing fibers when compared to control fibers. The dual drug-releasing osteoconductive fibers demonstrated osteogenesis as early as 7 days with a 3.7 and 1.5 fold increase in the expression of osteogenic differentiation markers (RUNX2 and osteocalcin), respectively. In vitro angiogenesis using primary human umbilical vein endothelial cells (pHUVECs) showed no significant difference in cell proliferation among control fibers and dual drug-releasing fibers. However, the angioinductive nature of simvastatin released from the fibers demonstrated tube formation and 2 fold higher angiogenic score. The mRNA and protein expression study of angiogenic markers (VEGFR2 and eNOS) by polymerase chain reaction and western blotting depicted the angioinducing potential of dual drug-releasing fibers. VEGFR2 and eNOS mRNA expressions increased by 1.1 and 1.6 fold, respectively, whereas their protein expression increased by 3.2 and 1.7 fold, respectively. The overall results demonstrate the synergistic effect of osteoconductive substrate and osteoinductive dual drugs to promote early osteogenesis, and release of the pro-angiogenic drug promotes angiogenesis.
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Affiliation(s)
- Hilal Ahmad Rather
- Biomaterials & Biomimetics laboratory, School of Life Sciences, Central University of Gujarat, Gandhinagar, 382030 India
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GelMA combined with sustained release of HUVECs derived exosomes for promoting cutaneous wound healing and facilitating skin regeneration. J Mol Histol 2020; 51:251-263. [PMID: 32388839 DOI: 10.1007/s10735-020-09877-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/04/2020] [Indexed: 12/24/2022]
Abstract
It remains a clinical challenge for cutaneous wound healing and skin regeneration. Endothelial cells participate in the formation of blood vessels and play an important role in the whole process of wound healing. Recent studies suggested that exosomes contribute to the intercellular communication through paracrine pathways, and sustained release of exosomes from hydrogel-based materials provide a promising strategy for curing wound defects. In this study, we isolated exosomes derived from human umbilical vein endothelial cells (HUVECs) and found that HUVECs derived exosomes (HUVECs-Exos) could promote the proliferation and migration activities of keratinocytes and fibroblasts, which are two important effector cells for skin regeneration. Then we developed gelatin methacryloyl (GelMA) hydrogel as the wound dressing to incorporate HUVECs-Exos and applied it to the full-thickness cutaneous wounds. It demonstrated that GelMA scaffold could not only repair the wound defect, but also achieve sustained release of exosomes. The in vivo results showed accelerated re-epithelialization, promotion of collagen maturity and improvement of angiogenesis. Collectively, our findings suggested that HUVECs-Exos could accelerate wound healing and GelMA mediated controlled release of HUVECs-Exos might offer a new method for repairing cutaneous wound defects.
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49
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Zhang Y, Yu T, Peng L, Sun Q, Wei Y, Han B. Advancements in Hydrogel-Based Drug Sustained Release Systems for Bone Tissue Engineering. Front Pharmacol 2020; 11:622. [PMID: 32435200 PMCID: PMC7218105 DOI: 10.3389/fphar.2020.00622] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022] Open
Abstract
Bone defects caused by injury, disease, or congenital deformity remain a major health concern, and efficiently regenerating bone is a prominent clinical demand worldwide. However, bone regeneration is an intricate process that requires concerted participation of both cells and bioactive factors. Mimicking physiological bone healing procedures, the sustained release of bioactive molecules plays a vital role in creating an optimal osteogenic microenvironment and achieving promising bone repair outcomes. The utilization of biomaterial scaffolds can positively affect the osteogenesis process by integrating cells with bioactive factors in a proper way. A high water content, tunable physio-mechanical properties, and diverse synthetic strategies make hydrogels ideal cell carriers and controlled drug release reservoirs. Herein, we reviewed the current advancements in hydrogel-based drug sustained release systems that have delivered osteogenesis-inducing peptides, nucleic acids, and other bioactive molecules in bone tissue engineering (BTE).
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Affiliation(s)
- Yunfan Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Tingting Yu
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Liying Peng
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Qiannan Sun
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Yan Wei
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Bing Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
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50
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Barati D, Gegg C, Yang F. Nanoparticle-Mediated TGF-β Release from Microribbon-Based Hydrogels Accelerates Stem Cell-Based Cartilage Formation In Vivo. Ann Biomed Eng 2020; 48:1971-1981. [PMID: 32377980 PMCID: PMC10155292 DOI: 10.1007/s10439-020-02522-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/24/2020] [Indexed: 04/04/2023]
Abstract
Conventional nanoporous hydrogels often lead to slow cartilage deposition by MSCs in 3D due to physical constraints and requirement for degradation. Our group has recently reported macroporous gelatin microribbon (μRB) hydrogels, which substantially accelerate MSC-based cartilage formation in vitro compared to conventional gelatin hydrogels. To facilitate translating the use of μRB-based scaffolds for supporting stem cell-based cartilage regeneration in vivo, there remains a need to develop a customize-designed drug delivery system that can be incorporated into μRB-based scaffolds. Towards this goal, here we report polydopamine-coated mesoporous silica nanoparticles (MSNs) that can be stably incorporated within the macroporous μRB scaffolds, and allow tunable release of transforming growth factor (TGF)-β3. We hypothesize that increasing concentration of polydopamine coating on MSNs will slow down TGF- β3 release, and TGF-β3 release from polydopamine-coated MSNs can enhance MSC-based cartilage formation in vitro and in vivo. We demonstrate that TGF-β3 released from MSNs enhance MSC-based cartilage regeneration in vitro to levels comparable to freshly added TGF-β3 in the medium, as shown by biochemical assays, mechanical testing, and histology. Furthermore, when implanted in vivo in a mouse subcutaneous model, only the group containing MSN-mediated TGF-β3 release supported continuous cartilage formation, whereas control group without MSN showed loss of cartilage matrix and undesirable endochondral ossification. The modular design of MSN-mediated drug delivery can be customized for delivering multiple drugs with individually optimized release kinetics, and may be applicable to enhance regeneration of other tissue types.
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Affiliation(s)
- Danial Barati
- Department of Orthopedic Surgery, Stanford University Schools of Engineering and Medicine, 300 Pasteur Drive, Edwards R105, Stanford, CA, 94305, USA
| | - Courtney Gegg
- Department of Bioengineering, Stanford University Schools of Engineering and Medicine, 300 Pasteur Drive, Edwards R105, Stanford, CA, 94305, USA
| | - Fan Yang
- Departments of Bioengineering and Orthopedic Surgery, Stanford University Schools of Engineering and Medicine, 300 Pasteur Drive, Edwards R105, Stanford, CA, 94305, USA.
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