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Funke S, Wiggenhauser PS, Grundmeier A, Taha S, Fuchs B, Birt A, Koban K, Giunta RE, Kuhlmann C. Aspirin Stimulates the Osteogenic Differentiation of Human Adipose Tissue-Derived Stem Cells In Vitro. Int J Mol Sci 2024; 25:7690. [PMID: 39062933 PMCID: PMC11277042 DOI: 10.3390/ijms25147690] [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: 05/27/2024] [Revised: 07/07/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
This study investigates the impact of acetylsalicylic acid (ASA), also known as aspirin, on adipose tissue-derived stem cells (ASCs), aiming to elucidate its dose-dependent effects on morphology, viability, proliferation, and osteogenic differentiation. Isolated and characterized human ASCs were exposed to 0 µM, 100 µM, 200 µM, 400 µM, 800 µM, 1000 µM, 10,000 µM, and 16,000 µM of ASA in vitro. Cell morphology, viability, and proliferation were evaluated with fluorescent live/dead staining, alamarBlue viability reagent, and CyQUANT® cell proliferation assay, respectively. Osteogenic differentiation under stimulation with 400 µM or 1000 µM of ASA was assessed with alizarin red staining and qPCR of selected osteogenic differentiation markers (RUNX2, SPP1, ALPL, BGLAP) over a 3- and 21-day-period. ASA doses ≤ 1000 µM showed no significant impact on cell viability and proliferation. Live/dead staining revealed a visible reduction in viable cell confluency for ASA concentrations ≥ 1000 µM. Doses of 10,000 µM and 16,000 µM of ASA exhibited a strong cytotoxic and anti-proliferative effect in ASCs. Alizarin red staining revealed enhanced calcium accretion under the influence of ASA, which was macro- and microscopically visible and significant for 1000 µM of ASA (p = 0.0092) in quantification if compared to osteogenic differentiation without ASA addition over a 21-day-period. This enhancement correlated with a more pronounced upregulation of osteogenic markers under ASA exposure (ns). Our results indicate a stimulatory effect of 1000 µM of ASA on the osteogenic differentiation of ASCs. Further research is needed to elucidate the precise molecular mechanisms underlying this effect; however, this discovery suggests promising opportunities for enhancing bone tissue engineering with ASCs as cell source.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Constanze Kuhlmann
- Division of Hand Surgery, Plastic Surgery and Aesthetic Surgery, University Hospital, LMU Munich, Ziemssenstraße 5, 80336 Munich, Germany; (S.F.); (P.S.W.); (A.G.); (S.T.); (B.F.); (A.B.); (K.K.); (R.E.G.)
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2
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Sun H, Luan J, Dong S. Hydrogels promote periodontal regeneration. Front Bioeng Biotechnol 2024; 12:1411494. [PMID: 38827033 PMCID: PMC11140061 DOI: 10.3389/fbioe.2024.1411494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/06/2024] [Indexed: 06/04/2024] Open
Abstract
Periodontal defects involve the damage and loss of periodontal tissue, primarily caused by periodontitis. This inflammatory disease, resulting from various factors, can lead to irreversible harm to the tissues supporting the teeth if not treated effectively, potentially resulting in tooth loss or loosening. Such outcomes significantly impact a patient's facial appearance and their ability to eat and speak. Current clinical treatments for periodontitis, including surgery, root planing, and various types of curettage, as well as local antibiotic injections, aim to mitigate symptoms and halt disease progression. However, these methods fall short of fully restoring the original structure and functionality of the affected tissue, due to the complex and deep structure of periodontal pockets and the intricate nature of the supporting tissue. To overcome these limitations, numerous biomaterials have been explored for periodontal tissue regeneration, with hydrogels being particularly noteworthy. Hydrogels are favored in research for their exceptional absorption capacity, biodegradability, and tunable mechanical properties. They have shown promise as barrier membranes, scaffolds, carriers for cell transplantation and drug delivery systems in periodontal regeneration therapy. The review concludes by discussing the ongoing challenges and future prospects for hydrogel applications in periodontal treatment.
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Affiliation(s)
- Huiying Sun
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Jiayi Luan
- Foshan Stomatology Hospital and School of Medicine, Foshan, Guangdong, China
| | - Shujun Dong
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
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3
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Li Q, Wang D, Xiao C, Wang H, Dong S. Advances in Hydrogels for Periodontitis Treatment. ACS Biomater Sci Eng 2024; 10:2742-2761. [PMID: 38639082 DOI: 10.1021/acsbiomaterials.4c00220] [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: 04/20/2024]
Abstract
Periodontitis is a common condition characterized by a bacterial infection and the disruption of the body's immune-inflammatory response, which causes damage to the teeth and supporting tissues and eventually results in tooth loss. Current therapy involves the systemic and local administration of antibiotics. However, the existing treatments cannot exert effective, sustained release and maintain an effective therapeutic concentration of the drug at the lesion site. Hydrogels are used to treat periodontitis due to their low cytotoxicity, exceptional water retention capability, and controlled drug release profile. Hydrogels can imitate the extracellular matrix of periodontal cells while offering suitable sites to load antibiotics. This article reviews the utilization of hydrogels for periodontitis therapy based on the pathogenesis and clinical manifestations of the disease. Additionally, the latest therapeutic strategies for smart hydrogels and the main techniques for hydrogel preparation have been discussed. The information will aid in designing and preparing future hydrogels for periodontitis treatment.
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Affiliation(s)
- Qiqi Li
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Di Wang
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Hao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Shujun Dong
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
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4
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Zhang M, Yu T, Li J, Yan H, Lyu L, Yu Y, Yang G, Zhang T, Zhou Y, Wang X, Liu D. Matrix Metalloproteinase-Responsive Hydrogel with On-Demand Release of Phosphatidylserine Promotes Bone Regeneration Through Immunomodulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306924. [PMID: 38460178 PMCID: PMC11132073 DOI: 10.1002/advs.202306924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/15/2024] [Indexed: 03/11/2024]
Abstract
Inflammation-responsive hydrogels loaded with therapeutic factors are effective biomaterials for bone tissue engineering and regenerative medicine. In this study, a matrix metalloproteinase (MMP)-responsive injectable hydrogel is constructed by integrating an MMP-cleavable peptide (pp) into a covalent tetra-armed poly-(ethylene glycol) (PEG) network for precise drug release upon inflammation stimulation. To establish a pro-regenerative environment, phosphatidylserine (PS) is encapsulated into a scaffold to form the PEG-pp-PS network, which could be triggered by MMP to release a large amount of PS during the early stage of inflammation and retain drug release persistently until the later stage of bone repair. The hydrogel is found to be mechanically and biologically adaptable to the complex bone defect area. In vivo and in vitro studies further demonstrated the ability of PEG-pp-PS to transform macrophages into the anti-inflammatory M2 phenotype and promote osteogenic differentiation, thus, resulting in new bone regeneration. Therefore, this study provides a facile, safe, and promising cell-free strategy on simultaneous immunoregulation and osteoinduction in bone engineering.
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Affiliation(s)
- Mingjin Zhang
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Tingting Yu
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Jing Li
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Huichun Yan
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Liang Lyu
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Yi Yu
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Gengchen Yang
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Ting Zhang
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Yanheng Zhou
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
| | - Xing Wang
- Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing100190China
- University of Chinese Academy of SciencesBeijing100049China
| | - Dawei Liu
- Department of OrthodonticsPeking University School and Hospital of StomatologyBeijing100081China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental MaterialsBeijing100081China
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5
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Li B, Liu H, Zhou M, Wu A, Hao W, Jiang Y, Hu Z. Preparation of PEG/P(U-AM-ChCl) composite hydrogels using ternary DES light polymerization and their properties. RSC Adv 2024; 14:2993-2999. [PMID: 38239452 PMCID: PMC10794902 DOI: 10.1039/d3ra08235k] [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: 12/02/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024] Open
Abstract
Deep eutectic solvents (DES) were prepared using urea (U) and acrylamide (AM) as hydrogen bond donors (HBD) and choline chloride (ChCl) as hydrogen bond acceptor (HBA), and polyethylene glycol (PEG) was selected as a filler and uniformly dispersed in DES to prepare PEG/P(U-AM-ChCl) composite hydrogels by light polymerization. The composite hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The effects of the content of PEG on the swelling properties, mechanical properties and fatigue resistance of the composite hydrogels were investigated. The results showed that the compressive strength and fatigue strength of the composite hydrogels were gradually enhanced with the increase of the PEG content in the composite hydrogels, in which the maximum compressive strength of the hydrogels with 1 wt% PEG added was increased by 1.86 times. The composite hydrogel had excellent swelling properties, and the equilibrium swelling degree of the hydrogel with 1 wt% PEG added reached 10.15. Meanwhile, the PEG/P(U-AM-ChCl) composite hydrogel had excellent self-healing properties, and the self-healing rate of the composite hydrogel with a PFG content of 1 wt% could reach 91.93% after 48 hours of healing. This study provides a convenient and efficient method to prepare composite hydrogels with superior swelling properties and self-healing properties.
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Affiliation(s)
- Bin Li
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Haiying Liu
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Mengjing Zhou
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Aolin Wu
- School of Science, Wuhan University of Technology Wuhan Hubei 430070 China
| | - Wenrui Hao
- School of Science, Wuhan University of Technology Wuhan Hubei 430070 China
| | - YaJun Jiang
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Zhigang Hu
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
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6
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Zhang S, Liu J, Feng F, Jia Y, Xu F, Wei Z, Zhang M. Rational design of viscoelastic hydrogels for periodontal ligament remodeling and repair. Acta Biomater 2024; 174:69-90. [PMID: 38101557 DOI: 10.1016/j.actbio.2023.12.017] [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: 08/16/2023] [Revised: 11/14/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
The periodontal ligament (PDL) is a distinctive yet critical connective tissue vital for maintaining the integrity and functionality of tooth-supporting structures. However, PDL repair poses significant challenges due to the complexity of its mechanical microenvironment encompassing hard-soft-hard tissues, with the viscoelastic properties of the PDL being of particular interest. This review delves into the significant role of viscoelastic hydrogels in PDL regeneration, underscoring their utility in simulating biomimetic three-dimensional microenvironments. We review the intricate relationship between PDL and viscoelastic mechanical properties, emphasizing the role of tissue viscoelasticity in maintaining mechanical functionality. Moreover, we summarize the techniques for characterizing PDL's viscoelastic behavior. From a chemical bonding perspective, we explore various crosslinking methods and characteristics of viscoelastic hydrogels, along with engineering strategies to construct viscoelastic cell microenvironments. We present a detailed analysis of the influence of the viscoelastic microenvironment on cellular mechanobiological behavior and fate. Furthermore, we review the applications of diverse viscoelastic hydrogels in PDL repair and address current challenges in the field of viscoelastic tissue repair. Lastly, we propose future directions for the development of innovative hydrogels that will facilitate not only PDL but also systemic ligament tissue repair. STATEMENT OF SIGNIFICANCE.
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Affiliation(s)
- Songbai Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an 710032, PR China; The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Jingyi Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Fan Feng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yuanbo Jia
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Zhao Wei
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China.
| | - Min Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an 710032, PR China.
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7
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Lee D, Song J, Kim J, Lee J, Son D, Shin M. Soft and Conductive Polyethylene Glycol Hydrogel Electrodes for Electrocardiogram Monitoring. Gels 2023; 9:957. [PMID: 38131943 PMCID: PMC10742586 DOI: 10.3390/gels9120957] [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: 11/14/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
The measurement of biosignals in the clinical and healthcare fields is fundamental; however, conventional electrodes pose challenges such as incomplete skin contact and skin-related issues, hindering accurate biosignal measurement. To address these challenges, conductive hydrogels, which are valuable owing to their biocompatibility and flexibility, have been widely developed and explored for electrode applications. In this study, we fabricated a conductive hydrogel by mixing polyethylene glycol diacrylate (PEGDA) with poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) polymers dissolved in deionized water, followed by light-triggered crosslinking. Notably, this study pioneered the use of a PEGDA-PEDOT:PSS hydrogel for electrocardiogram (ECG) monitoring- a type of biosignal. The resulting PEGDA-PEDOT:PSS hydrogel demonstrated remarkable conductivity while closely approximating the modulus of skin elasticity. Additionally, it demonstrated biocompatibility and a high signal-to-noise ratio in the waveforms. This study confirmed the exceptional suitability of the PEGDA-PEDOT:PSS hydrogel for accurate biosignal measurements with potential applications in various wearable devices designed for biosignal monitoring.
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Affiliation(s)
- Dongik Lee
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; (D.L.); (J.K.); (J.L.)
| | - Jihyang Song
- Department of Artificial Intelligence System Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea;
| | - Jungwoo Kim
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; (D.L.); (J.K.); (J.L.)
| | - Jaebeom Lee
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; (D.L.); (J.K.); (J.L.)
| | - Donghee Son
- Department of Artificial Intelligence System Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea;
- Department of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Mikyung Shin
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea; (D.L.); (J.K.); (J.L.)
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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8
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Zheng Z, Tang S, Yang T, Wang X, Ding G. Advances in combined application of dental stem cells and small-molecule drugs in regenerative medicine. Hum Cell 2023; 36:1620-1637. [PMID: 37358734 DOI: 10.1007/s13577-023-00943-1] [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: 04/28/2023] [Accepted: 06/19/2023] [Indexed: 06/27/2023]
Abstract
Teeth are a kind of masticatory organs of special histological origin, unique to vertebrates, playing an important role in chewing, esthetics, and auxiliary pronunciation. In the past decades, with the development of tissue engineering and regenerative medicine, the studies of mesenchymal stem cells (MSCs) gradually attracted the interest of researchers. Accordingly, several types of MSCs have been successively isolated in teeth or teeth-related tissues, including dental pulp stem cells, periodontal ligament stem cells, stem cells from human exfoliated deciduous teeth, dental follicle stem cells, stem cells from apical papilla and gingival mesenchymal stem cells. These dental stem cells (DSCs) are easily accessible, possess excellent stem cell characteristics, such as high proliferation rates and profound immunomodulatory properties. Small-molecule drugs are widely used and show great advantages in clinical practice. As research progressed, small-molecule drugs are found to have various complex effects on the characteristics of DSCs, especially the enhancement of biological characteristics of DSCs, which has gradually become a hot issue in the field of DSCs research. This review summarizes the background, current status, existing problems, future research directions, and prospects of the combination of DSCs with three common small-molecule drugs: aspirin, metformin, and berberine.
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Affiliation(s)
- Zejun Zheng
- School of Stomatology, Weifang Medical University, Baotong West Street No. 7166, Weifang, Shandong Province, China
| | - Shuai Tang
- School of Stomatology, Weifang Medical University, Baotong West Street No. 7166, Weifang, Shandong Province, China
| | - Tong Yang
- School of Stomatology, Weifang Medical University, Baotong West Street No. 7166, Weifang, Shandong Province, China
| | - Xiaolan Wang
- School of Stomatology, Weifang Medical University, Baotong West Street No. 7166, Weifang, Shandong Province, China
| | - Gang Ding
- School of Stomatology, Weifang Medical University, Baotong West Street No. 7166, Weifang, Shandong Province, China.
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9
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Su N, Villicana C, Zhang C, Lee J, Sinha S, Yang A, Yang F. Aspirin synergizes with mineral particle-coated macroporous scaffolds for bone regeneration through immunomodulation. Theranostics 2023; 13:4512-4525. [PMID: 37649612 PMCID: PMC10465219 DOI: 10.7150/thno.85946] [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: 05/08/2023] [Accepted: 08/01/2023] [Indexed: 09/01/2023] Open
Abstract
Rationale: Mineral particles have been widely used in bone tissue engineering scaffolds due to their osteoconductive and osteoinductive properties. Despite their benefits, mineral particles can induce undesirable inflammation and subsequent bone resorption. Aspirin (Asp) is an inexpensive and widely used anti-inflammatory drug. The goal of this study is to assess the synergistic effect of Asp and optimized mineral particle coating in macroporous scaffolds to accelerate endogenous bone regeneration and reduce bone resorption in a critical-sized bone defect model. Methods: Four commonly used mineral particles with varying composition (hydroxyapatite v.s. tricalcium phosphate) and size (nano v.s. micro) were used. Mineral particles were coated onto gelatin microribbon (µRB) scaffolds. Macrophages (Mφ) were cultured on gelatin µRB scaffolds containing various particles, and Mφ polarization was assessed using PCR and ELISA. The effect of conditioned medium from Mφ on mesenchymal stem cell (MSC) osteogenesis was also evaluated in vitro. Scaffolds containing optimized mineral particles were then combined with varying dosages of Asp to assess the effect in inducing endogenous bone regeneration using a critical-sized cranial bone defect model. In vivo characterization and in vitro cell studies were performed to elucidate the effect of tuning Asp dosage on Mφ polarization, osteoclast (OC) activity, and MSC osteogenesis. Results: Micro-sized tricalcium phosphate (mTCP) particles were identified as optimal in promoting M2 Mφ polarization and rescuing MSC-based bone formation in the presence of conditioned medium from Mφ. When implanted in vivo, incorporating Asp with mTCP-coated µRB scaffolds significantly accelerated endogenous bone formation in a dose-dependent manner. Impressively, mTCP-coated µRB scaffolds containing 20 µg Asp led to almost complete bone healing of a critical-sized cranial bone defect as early as week 2 with no subsequent bone resorption. Asp enhanced M2 Mφ polarization, decreased OC activity, and promoted MSC osteogenesis in a dosage-dependent manner in vivo. These results were further validated using in vitro cell studies. Conclusions: Here, we demonstrate Asp and mineral particle-coated microribbon scaffold provides a promising therapy for repairing critical-sized cranial bone defects via immunomodulation. The leading formulation supports rapid endogenous bone regeneration without the need for exogenous cells or growth factors, making it attractive for translation. Our results also highlight the importance of optimizing mineral particles and Asp dosage to achieve robust bone healing while avoiding bone resorption by targeting Mφ and OCs.
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Affiliation(s)
- Ni Su
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Cassandra Villicana
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Carl Zhang
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jeehee Lee
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Sauradeep Sinha
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Andrew Yang
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Fan Yang
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, 94305, USA
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10
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Cabaña-Muñoz ME, Pelaz Fernández MJ, Parmigiani-Cabaña JM, Parmigiani-Izquierdo JM, Merino JJ. Adult Mesenchymal Stem Cells from Oral Cavity and Surrounding Areas: Types and Biomedical Applications. Pharmaceutics 2023; 15:2109. [PMID: 37631323 PMCID: PMC10459416 DOI: 10.3390/pharmaceutics15082109] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Adult mesenchymal stem cells are those obtained from the conformation of dental structures (DMSC), such as deciduous and permanent teeth and other surrounding tissues. Background: The self-renewal and differentiation capacities of these adult stem cells allow for great clinical potential. Because DMSC are cells of ectomesenchymal origin, they reveal a high capacity for complete regeneration of dental pulp, periodontal tissue, and other biomedical applications; their differentiation into other types of cells promotes repair in muscle tissue, cardiac, pancreatic, nervous, bone, cartilage, skin, and corneal tissues, among others, with a high predictability of success. Therefore, stem and progenitor cells, with their exosomes of dental origin and surrounding areas in the oral cavity due to their plasticity, are considered a fundamental pillar in medicine and regenerative dentistry. Tissue engineering (MSCs, scaffolds, and bioactive molecules) sustains and induces its multipotent and immunomodulatory effects. It is of vital importance to guarantee the safety and efficacy of the procedures designed for patients, and for this purpose, more clinical trials are needed to increase the efficacy of several pathologies. Conclusion: From a bioethical and transcendental anthropological point of view, the human person as a unique being facilitates better clinical and personalized therapy, given the higher prevalence of dental and chronic systemic diseases.
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Affiliation(s)
- María Eugenia Cabaña-Muñoz
- CIROM—Centro de Rehabilitación Oral Multidisciplinaria, 30001 Murcia, Spain; (M.E.C.-M.); (J.M.P.-C.); (J.M.P.-I.)
| | | | - José María Parmigiani-Cabaña
- CIROM—Centro de Rehabilitación Oral Multidisciplinaria, 30001 Murcia, Spain; (M.E.C.-M.); (J.M.P.-C.); (J.M.P.-I.)
| | | | - José Joaquín Merino
- Departamento de Farmacología, Farmacognosia y Botánica, Facultad de Farmacia, Universidad Complutense de Madrid (U.C.M), 28040 Madrid, Spain
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11
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Atia GAN, Shalaby HK, Ali NG, Morsy SM, Ghobashy MM, Attia HAN, Barai P, Nady N, Kodous AS, Barai HR. New Challenges and Prospective Applications of Three-Dimensional Bioactive Polymeric Hydrogels in Oral and Craniofacial Tissue Engineering: A Narrative Review. Pharmaceuticals (Basel) 2023; 16:702. [PMID: 37242485 PMCID: PMC10224377 DOI: 10.3390/ph16050702] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/26/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Regenerative medicine, and dentistry offers enormous potential for enhancing treatment results and has been fueled by bioengineering breakthroughs over the previous few decades. Bioengineered tissues and constructing functional structures capable of healing, maintaining, and regenerating damaged tissues and organs have had a broad influence on medicine and dentistry. Approaches for combining bioinspired materials, cells, and therapeutic chemicals are critical in stimulating tissue regeneration or as medicinal systems. Because of its capacity to maintain an unique 3D form, offer physical stability for the cells in produced tissues, and replicate the native tissues, hydrogels have been utilized as one of the most frequent tissue engineering scaffolds during the last twenty years. Hydrogels' high water content can provide an excellent conditions for cell viability as well as an architecture that mimics real tissues, bone, and cartilage. Hydrogels have been used to enable cell immobilization and growth factor application. This paper summarizes the features, structure, synthesis and production methods, uses, new challenges, and future prospects of bioactive polymeric hydrogels in dental and osseous tissue engineering of clinical, exploring, systematical and scientific applications.
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Affiliation(s)
- Gamal Abdel Nasser Atia
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Hany K. Shalaby
- Department of Oral Medicine, Periodontology and Oral Diagnosis, Faculty of Dentistry, Suez University, Suez P.O. Box 43512, Egypt
| | - Naema Goda Ali
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Shaimaa Mohammed Morsy
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo P.O. Box 13759, Egypt
| | - Hager Abdel Nasser Attia
- Department of Molecular Biology and Chemistry, Faculty of Science, Alexandria University, Alexandria P.O. Box 21526, Egypt
| | - Paritosh Barai
- Department of Biochemistry and Molecular Biology, Primeasia University, Dhaka 1213, Bangladesh
| | - Norhan Nady
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Elarab, Alexandria P.O. Box 21934, Egypt
| | - Ahmad S. Kodous
- Department of Radiation Biology, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority (EAEA), Cairo P.O. Box 13759, Egypt
| | - Hasi Rani Barai
- Department of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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12
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Jia L, Li D, Wang YN, Zhang D, Xu X. PSAT1 positively regulates the osteogenic lineage differentiation of periodontal ligament stem cells through the ATF4/PSAT1/Akt/GSK3β/β-catenin axis. J Transl Med 2023; 21:70. [PMID: 36732787 PMCID: PMC9893676 DOI: 10.1186/s12967-022-03775-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/15/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Periodontal ligament stem cells (PDLSCs) are important seed cells for tissue engineering to realize the regeneration of alveolar bone. Understanding the gene regulatory mechanisms of osteogenic lineage differentiation in PDLSCs will facilitate PDLSC-based bone regeneration. However, these regulatory molecular signals have not been clarified. METHODS To screen potential regulators of osteogenic differentiation, the gene expression profiles of undifferentiated and osteodifferentiated PDLSCs were compared by microarray and bioinformatics methods, and PSAT1 was speculated to be involved in the gene regulation network of osteogenesis in PDLSCs. Lentiviral vectors were used to overexpress or knock down PSAT1 in PDLSCs, and then the proliferation activity, migration ability, and osteogenic differentiation ability of PDLSCs in vitro were analysed. A rat mandibular defect model was built to analyse the regulatory effects of PSAT1 on PDLSC-mediated bone regeneration in vivo. The regulation of PSAT1 on the Akt/GSK3β/β-catenin signalling axis was analysed using the Akt phosphorylation inhibitor Ly294002 or agonist SC79. The potential sites on the promoter of PSAT1 that could bind to the transcription factor ATF4 were predicted and verified. RESULTS The microarray assay showed that the expression levels of 499 genes in PDLSCs were altered significantly after osteogenic induction. Among these genes, the transcription level of PSAT1 in osteodifferentiated PDLSCs was much lower than that in undifferentiated PDLSCs. Overexpressing PSAT1 not only enhanced the proliferation and osteogenic differentiation abilities of PDLSCs in vitro, but also promoted PDLSC-based alveolar bone regeneration in vivo, while knocking down PSAT1 had the opposite effects in PDLSCs. Mechanistic experiments suggested that PSAT1 regulated the osteogenic lineage fate of PDLSCs through the Akt/GSK3β/β-catenin signalling axis. PSAT1 expression in PDLSCs during osteogenic differentiation was controlled by transcription factor ATF4, which is realized by the combination of ATF4 and the PSAT1 promoter. CONCLUSION PSAT1 is a potential important regulator of the osteogenic lineage differentiation of PDLSCs through the ATF4/PSAT1/Akt/GSK3β/β-catenin signalling pathway. PSAT1 could be a candidate gene modification target for enhancing PDLSCs-based bone regeneration.
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Affiliation(s)
- Linglu Jia
- grid.27255.370000 0004 1761 1174Department of Prosthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, China ,Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China ,Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China ,Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Dongfang Li
- Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China ,Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China ,Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Ya-Nan Wang
- grid.27255.370000 0004 1761 1174Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, No. 44-1 Wenhua Road West, Jinan, 250012 Shandong China ,Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China ,Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China ,Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Dongjiao Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, No. 44-1 Wenhua Road West, Jinan, 250012, Shandong, China. .,Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China. .,Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China. .,Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China.
| | - Xin Xu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, No. 44-1 Wenhua Road West, Jinan, 250012, Shandong, China. .,Shandong Key Laboratory of Oral Tissue Regeneration, Jinan, China. .,Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China. .,Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China.
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13
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Sun S, Cui Y, Yuan B, Dou M, Wang G, Xu H, Wang J, Yin W, Wu D, Peng C. Drug delivery systems based on polyethylene glycol hydrogels for enhanced bone regeneration. Front Bioeng Biotechnol 2023; 11:1117647. [PMID: 36793443 PMCID: PMC9923112 DOI: 10.3389/fbioe.2023.1117647] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/18/2023] [Indexed: 01/31/2023] Open
Abstract
Drug delivery systems composed of osteogenic substances and biological materials are of great significance in enhancing bone regeneration, and appropriate biological carriers are the cornerstone for their construction. Polyethylene glycol (PEG) is favored in bone tissue engineering due to its good biocompatibility and hydrophilicity. When combined with other substances, the physicochemical properties of PEG-based hydrogels fully meet the requirements of drug delivery carriers. Therefore, this paper reviews the application of PEG-based hydrogels in the treatment of bone defects. The advantages and disadvantages of PEG as a carrier are analyzed, and various modification methods of PEG hydrogels are summarized. On this basis, the application of PEG-based hydrogel drug delivery systems in promoting bone regeneration in recent years is summarized. Finally, the shortcomings and future developments of PEG-based hydrogel drug delivery systems are discussed. This review provides a theoretical basis and fabrication strategy for the application of PEG-based composite drug delivery systems in local bone defects.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Dankai Wu
- *Correspondence: Dankai Wu, ; Chuangang Peng,
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14
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Fattahi R, Soleimani M, Khani MM, Rasouli M, Hosseinzadeh S. A three-dimensional structure with osteoconductive function made of O-carboxymethyl chitosan using aspirin as a cross-linker. INT J POLYM MATER PO 2023. [DOI: 10.1080/00914037.2022.2155156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Roya Fattahi
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Mehdi Khani
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Rasouli
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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15
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Liu C, Sharpe P, Volponi AA. Applications of regenerative techniques in adult orthodontics. FRONTIERS IN DENTAL MEDICINE 2023. [DOI: 10.3389/fdmed.2022.1100548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Management of the growing adult orthodontic patient population must contend with challenges particular to orthodontic treatment in adults. These include a limited rate of tooth movement, increased incidence of periodontal complications, higher risk of iatrogenic root resorption and pulp devitalisation, resorbed edentulous ridges, and lack of growth potential. The field of regenerative dentistry has evolved numerous methods of manipulating cellular and molecular processes to rebuild functional oral and dental tissues, and research continues to advance our understanding of stem cells, signalling factors that stimulate repair and extracellular scaffold interactions for the purposes of tissue engineering. We discuss recent findings in the literature to synthesise our understanding of current and prospective approaches based on biological repair that have the potential to improve orthodontic treatment outcomes in adult patients. Methods such as mesenchymal stem cell transplantation, biomimetic scaffold manipulation, and growth factor control may be employed to overcome the challenges described above, thereby reducing adverse sequelae and improving orthodontic treatment outcomes in adult patients. The overarching goal of such research is to eventually translate these regenerative techniques into clinical practice, and establish a new gold standard of safe, effective, autologous therapies.
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16
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Koh E, Freedman BR, Ramazani F, Gross J, Graham A, Kuttler A, Weber E, Mooney DJ. Controlled Delivery of Corticosteroids Using Tunable Tough Adhesives. Adv Healthc Mater 2023; 12:e2201000. [PMID: 36285360 PMCID: PMC11046305 DOI: 10.1002/adhm.202201000] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/27/2022] [Indexed: 01/26/2023]
Abstract
Hydrogel-based drug delivery systems typically aim to release drugs locally to tissue in an extended manner. Tissue adhesive alginate-polyacrylamide tough hydrogels are recently demonstrated to serve as an extended-release system for the corticosteroid triamcinolone acetonide. Here, the stimuli-responsive controlled release of triamcinolone acetonide from the alginate-polyacrylamide tough hydrogel drug delivery systems (TADDS) and evolving new approaches to combine alginate-polyacrylamide tough hydrogel with drug-loaded nano and microparticles, generating composite TADDS is described. Stimulation with ultrasound pulses or temperature changes is demonstrated to control the release of triamcinolone acetonide from the TADDS. The incorporation of laponite nanoparticles or PLGA microparticles into the tough hydrogel is shown to further enhance the versatility to control and modulate the release of triamcinolone acetonide. A first technical exploration of a TADDS shelf-life concept is performed using lyophilization, where lyophilized TADDS are physically stable and the bioactive integrity of released triamcinolone acetonide is demonstrated. Given the tunability of properties, the TADDS are a suggested technology platform for controlled drug delivery.
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Affiliation(s)
- Esther Koh
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Farshad Ramazani
- Novartis Pharma AG, Technical Research and Development, Basel, 4056, Switzerland
| | - Johannes Gross
- Novartis Pharma AG, Technical Research and Development, Basel, 4056, Switzerland
| | - Adam Graham
- Center for Nanoscale Systems, Harvard University, Cambridge, MA, 02138, USA
| | - Andreas Kuttler
- Novartis Institutes for Biomedical Research, Basel, 4056, Switzerland
| | - Eckhard Weber
- Novartis Institutes for Biomedical Research, Basel, 4056, Switzerland
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
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17
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Li M, Lv J, Yang Y, Cheng G, Guo S, Liu C, Ding Y. Advances of Hydrogel Therapy in Periodontal Regeneration-A Materials Perspective Review. Gels 2022; 8:gels8100624. [PMID: 36286125 PMCID: PMC9602018 DOI: 10.3390/gels8100624] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/18/2022] [Accepted: 09/27/2022] [Indexed: 11/04/2022] Open
Abstract
Hydrogel, a functional polymer material, has emerged as a promising technology for therapies for periodontal diseases. It has the potential to mimic the extracellular matrix and provide suitable attachment sites and growth environments for periodontal cells, with high biocompatibility, water retention, and slow release. In this paper, we have summarized the main components of hydrogel in periodontal tissue regeneration and have discussed the primary construction strategies of hydrogels as a reference for future work. Hydrogels provide an ideal microenvironment for cells and play a significant role in periodontal tissue engineering. The development of intelligent and multifunctional hydrogels for periodontal tissue regeneration is essential for future research.
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18
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Zhang M, Chan CHH, Pauls JP, Semenzin C, Ainola C, Peng H, Fu C, Whittaker AK, Heinsar S, Fraser JF. Investigation of heparin-loaded poly(ethylene glycol)-based hydrogels as anti-thrombogenic surface coatings for extracorporeal membrane oxygenation. J Mater Chem B 2022; 10:4974-4983. [PMID: 35695541 DOI: 10.1039/d2tb00379a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Extracorporeal membrane oxygenation (ECMO), a critical life-sustaining tool, faces significant challenges for the maintenance of normal haemostasis due to the large volume of circulating blood continuously in contact with artificial surfaces, hyperoxia and excessive shear stresses of the extracorporeal circuit. From a biomaterials perspective, it has been hypothesised that drug eluting coatings composed of haemocompatible hydrogels loaded with an anticoagulant drug could potentially enhance the haemocompatibility of the circuit. Poly(ethylene glycol) (PEG) has been well established as a biocompatible and anti-fouling material with wide biomedical application. Unfractionated heparin is the most commonly used anticoagulant for ECMO. In the present study, the feasibility of using heparin-loaded PEG-based hydrogels as anti-thrombogenic surface coatings for ECMO was investigated. The hydrogels were synthesised by photopolymerisation using poly(ethylene glycol) diacrylate (PEGDA) as the crosslinking monomer and poly(ethylene glycol) methacrylate (PEGMA) as the hydrophilic monomer, with heparin loaded into the pre-gel solution. Factors which could affect the release of heparin were investigated, including the ratio of PEGDA/PEGMA, water content, loading level of heparin and the flow of fluid past the hydrogel. Our results showed that increased crosslinker content and decreased water content led to slower heparin release. The hydrogels with water contents of 60 wt% and 70 wt% could achieve a sustained heparin release by adjusting the ratio of PEGDA/PEGMA. The anticoagulation efficacy of the released heparin was evaluated by measuring the activated clotting time of whole blood. The hydrogels with desirable heparin release profiles were prepared onto poly(4-methyl-1-pentene) (PMP) films with the same chemical composition as the PMP ECMO membranes. The coatings showed sustained heparin release with a cumulative release of 70-80% after 7 days. Haemocompatibility tests demonstrated that PEG hydrogel coatings significantly reduced platelet adhesion and prolonged plasma recalcification time. These results suggest that heparin-loaded PEG hydrogels are potential anti-thrombogenic coatings for ECMO.
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Affiliation(s)
- Meili Zhang
- Innovative Cardiovascular Engineering and Technology Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia. .,School of Mechanical and Mining Engineering, The University of Queensland, QLD, Australia
| | - Chris H H Chan
- Innovative Cardiovascular Engineering and Technology Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia. .,School of Engineering and Built Environment, Griffith University, QLD, Australia
| | - Jo P Pauls
- Innovative Cardiovascular Engineering and Technology Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia. .,School of Engineering and Built Environment, Griffith University, QLD, Australia
| | - Clayton Semenzin
- Innovative Cardiovascular Engineering and Technology Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia. .,School of Engineering and Built Environment, Griffith University, QLD, Australia
| | - Carmen Ainola
- Scientific and Translational Research Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia.,Faculty of Medicine, The University of Queensland, QLD, Australia
| | - Hui Peng
- Australian Institute for Bioengineering and Nanotechnology and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, QLD, Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and Nanotechnology and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, QLD, Australia
| | - Andrew K Whittaker
- Australian Institute for Bioengineering and Nanotechnology and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, QLD, Australia
| | - Silver Heinsar
- Scientific and Translational Research Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia.,Faculty of Medicine, The University of Queensland, QLD, Australia
| | - John F Fraser
- Innovative Cardiovascular Engineering and Technology Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia. .,Scientific and Translational Research Laboratory, Critical Care Research Group, The Prince Charles Hospital, QLD, Australia.,Faculty of Medicine, The University of Queensland, QLD, Australia.,School of Medicine, Griffith University, QLD, Australia
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19
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Fattahi R, Mohebichamkhorami F, Khani MM, Soleimani M, Hosseinzadeh S. Aspirin effect on bone remodeling and skeletal regeneration: Review article. Tissue Cell 2022; 76:101753. [PMID: 35180553 DOI: 10.1016/j.tice.2022.101753] [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: 10/24/2021] [Revised: 01/21/2022] [Accepted: 02/06/2022] [Indexed: 12/21/2022]
Abstract
Bone tissues are one of the most complex tissues in the body that regenerate and repair themselves spontaneously under the right physiological conditions. Within the limitations of treating bone defects, mimicking tissue engineering through the recruitment of scaffolds, cell sources and growth factors, is strongly recommended. Aspirin is one of the non-steroidal anti-inflammatory drugs (NSAIDs) and has been used in clinical studies for many years due to its anti-coagulant effect. On the other hand, aspirin and other NSAIDs activate cytokines and some mediators in osteoclasts, osteoblasts and their progenitor cells in a defect area, thereby promoting bone regeneration. It also stimulates angiogenesis by increasing migration of endothelial cells and the newly developed vessels are of emergency in bone fracture repair. This review covers the role of aspirin in bone tissue engineering and also, highlights its chemical reactions, mechanisms, dosages, anti-microbial and angiogenesis activities.
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Affiliation(s)
- Roya Fattahi
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Mohebichamkhorami
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mehdi Khani
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Simzar Hosseinzadeh
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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20
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Zhu W, Chen R, Wang W, Liu Y, Shi C, Tang S, Tang G. Fabrication of Naturally Derived Double-Network Hydrogels With a Sustained Aspirin Release System for Facilitating Bone Regeneration. Front Chem 2022; 10:874985. [PMID: 35419346 PMCID: PMC8995466 DOI: 10.3389/fchem.2022.874985] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/08/2022] [Indexed: 12/20/2022] Open
Abstract
Continuous efforts on pursuit of effective drug delivery systems for engineering hydrogel scaffolds is considered a promising strategy for the bone-related diseases. Here, we developed a kind of acetylsalicylic acid (aspirin, ASA)–based double-network (DN) hydrogel containing the positively charged natural chitosan (CS) and methacrylated gelatin (GelMA) polymers. Combination of physical chain-entanglement, electrostatic interactions, and a chemically cross-linked methacrylated gelatin (GelMA) network led to the formation of a DN hydrogel, which had a suitable porous structure and favorable mechanical properties. After in situ encapsulation of aspirin agents, the resulting hydrogels were investigated as culturing matrices for adipose tissue–derived stromal cells (ADSCs) to evaluate their excellent biocompatibility and biological capacities on modulation of cell proliferation and differentiation. We further found that the long-term sustained ASA in the DN hydrogels could contribute to the anti-inflammation and osteoinductive properties, demonstrating a new strategy for bone tissue regeneration.
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Affiliation(s)
- Wenfeng Zhu
- Department of Orthopedics, Shanghai Post and Telecommunication Hospital, Shanghai, China
| | - Rui Chen
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Weiheng Wang
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Yi Liu
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Changgui Shi
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
- *Correspondence: Changgui Shi, ; Songjun Tang, ; Guoke Tang,
| | - Songjun Tang
- Department of Orthopedics, Shanghai Post and Telecommunication Hospital, Shanghai, China
- *Correspondence: Changgui Shi, ; Songjun Tang, ; Guoke Tang,
| | - Guoke Tang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
- *Correspondence: Changgui Shi, ; Songjun Tang, ; Guoke Tang,
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21
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Adolpho LF, Lopes HB, Freitas GP, Weffort D, Campos Totoli GG, Loyola Barbosa AC, Freire Assis RI, Silverio Ruiz KG, Andia DC, Rosa AL, Beloti MM. Human periodontal ligament stem cells with distinct osteogenic potential induce bone formation in rat calvaria defects. Regen Med 2022; 17:341-353. [PMID: 35291805 DOI: 10.2217/rme-2021-0178] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Aim: This study aimed to evaluate the ability of human periodontal ligament stem cells (PDLSCs) with high (HP-PDLSCs) and low (LP-PDLSCs) osteogenic potential, in addition to mixed cells, to repair bone tissue. Methods: Cell phenotype, proliferation and differentiation were evaluated. Undifferentiated PDLSCs were injected into rat calvarial defects and the new bone was evaluated by μCT, histology and real-time PCR. Results: PDLSCs exhibited a typical mesenchymal stem cell phenotype and HP-PDLSCs showed lower proliferative and higher osteogenic potential than LP-PDLSCs. PDLSCs induced similar bone formation and histological analysis suggests a remodeling process, confirmed by osteogenic and osteoclastogenic markers, especially in tissues derived from defects treated with HP-PDLSCs. Conclusion: PDLSCs induced similar bone formation irrespective of their in vitro osteogenic potential.
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Affiliation(s)
- Leticia Faustino Adolpho
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Helena Bacha Lopes
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Gileade Pereira Freitas
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Denise Weffort
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Gabriela Guaraldo Campos Totoli
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Ana Carolina Loyola Barbosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Rahyza Inacio Freire Assis
- Department of Prosthodontics & Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Av Limeira, 901, Piracicaba, SP, 13414-903, Brazil
| | - Karina Gonzales Silverio Ruiz
- Department of Prosthodontics & Periodontics, Periodontics Division, Piracicaba Dental School, University of Campinas, Av Limeira, 901, Piracicaba, SP, 13414-903, Brazil
| | - Denise Carleto Andia
- Health Science Institute, Dental Research Division, Paulista University, Dr Bacelar St, 1212, São Paulo, SP, 04026-002, Brazil
| | - Adalberto Luiz Rosa
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
| | - Marcio Mateus Beloti
- Bone Research Lab, School of Dentistry of Ribeirão Preto, University of São Paulo, Av do Café, s/n, Ribeirão Preto, SP, 14040-904, Brazil
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22
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Zhang Y, Dou X, Zhang L, Wang H, Zhang T, Bai R, Sun Q, Wang X, Yu T, Wu D, Han B, Deng X. Facile fabrication of a biocompatible composite gel with sustained release of aspirin for bone regeneration. Bioact Mater 2021; 11:130-139. [PMID: 34938918 PMCID: PMC8665342 DOI: 10.1016/j.bioactmat.2021.09.033] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 12/16/2022] Open
Abstract
Hydrogels are extracellular-matrix-like biomimetic materials that have wide biomedical applications in tissue engineering and drug delivery. However, most hydrogels cannot simultaneously fulfill the mechanical and cell compatibility requirements. In the present study, we prepared a semi-interpenetrating network composite gel (CG) by incorporating short chain chitosan (CS) into a covalent tetra-armed poly(ethylene glycol) network. In addition to satisfying physicochemical, mechanics, biocompatibility, and cell affinity requirements, this CG easily encapsulated acetylsalicylic acid (ASA) via electrostatic interactions and chain entanglement, achieving sustained release for over 14 days and thus promoting periodontal ligament stem cell (PDLSC) proliferation and osteogenic differentiation. In vivo studies corroborated the capacity of PDLSCs and ASA-laden CG to enhance new bone regeneration in situ using a mouse calvarial bone defect model. This might be attributed to PDLSCs and host mesenchymal stem cells expressing monocyte chemoattractant protein-1, which upregulated M2 macrophage recruitment and polarization in situ, indicating its appealing potential in bone tissue engineering. A facile method to prepare the composite gels with advantages of easy operation, good biocompatibility and biodegradability. Composite gels can simultaneously fulfill the mechanical strength and cell-compatibility requirements. Composite gels can achieve the loading and sustained release of acetylsalicylic acid via electrostatic interaction and chain entanglement. Acetylsalicylic-acid-encapsulated composite gel is paramount to promote PDLSCs-mediated bone regeneration. The underlying mechanism might be associated with upregulation of MCP-1 and macrophage M2 polarization.
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Affiliation(s)
- Yunfan Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Xueyu Dou
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Lingyun Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Hufei Wang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Ting Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Rushui Bai
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Qiannan Sun
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Tingting Yu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Bing Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China.,National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China
| | - Xuliang Deng
- National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory for Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, PR China.,Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, PR China
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23
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Chen J, Mo Q, Sheng R, Zhu A, Ling C, Luo Y, Zhang A, Chen Z, Yao Q, Cai Z, Zhang W. The application of human periodontal ligament stem cells and biomimetic silk scaffold for in situ tendon regeneration. Stem Cell Res Ther 2021; 12:596. [PMID: 34863301 PMCID: PMC8642874 DOI: 10.1186/s13287-021-02661-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/22/2021] [Indexed: 12/18/2022] Open
Abstract
Background With the development of tissue engineering, enhanced tendon regeneration could be achieved by exploiting suitable cell types and biomaterials. The accessibility, robust cell amplification ability, superior tendon differentiation potential, and immunomodulatory effects of human periodontal ligament stem cells (hPDLSCs) indicate their potential as ideal seed cells for tendon tissue engineering. Nevertheless, there are currently no reports of using PDLSCs as seed cells. Previous studies have confirmed the potential of silk scaffold for tendon tissue engineering. However, the biomimetic silk scaffold with tendon extracellular matrix (ECM)-like structure has not been systematically studied for in situ tendon regeneration. Therefore, this study aims to evaluate the effects of hPDLSCs and biomimetic silk scaffold on in situ tendon regeneration. Methods Human PDLSCs were isolated from extracted wisdom teeth. The differentiation potential of hPDLSCs towards osteo-, chondro-, and adipo-lineage was examined by cultured in different inducing media. Aligned and random silk scaffolds were fabricated by the controlled directional freezing technique. Scaffolds were characterized including surface structure, water contact angle, swelling ratio, degradation speed and mechanical properties. The biocompatibility of silk scaffolds was evaluated by live/dead staining, SEM observation, cell proliferation determination and immunofluorescent staining of deposited collagen type I. Subsequently, hPDLSCs were seeded on the aligned silk scaffold and transplanted into the ruptured rat Achilles tendon. Scaffolds without cells served as control groups. After 4 weeks, histology evaluation was carried out and macrophage polarization was examined to check the repair effects and immunomodulatory effects. Results Human PDLSCs were successfully isolated, and their multi-differentiation potential was confirmed. Compared with random scaffold, aligned silk scaffold had more elongated and aligned pores and promoted the proliferation and ordered arrangement of hPDLSCs. After implantation into rat Achilles tendon defect, hPDLSCs seeded aligned silk scaffold enhanced tendon repair with more tendon-like tissue formation after 4 weeks, as compared to the scaffold-only groups. Higher expression of CD206 and lower expression of iNOS, IL-1β and TNF-α were found in the hPDLSCs seeded aligned silk scaffold group, which revealed its modulation effect of macrophage polarization from M1 to M2 phenotype. Conclusions In summary, this study demonstrates the efficacy of hPDLSCs as seed cells and aligned silk scaffold as a tendon-mimetic scaffold for enhanced tendon tissue engineering, which may have broad implications for future tendon tissue engineering and regenerative medicine researches. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02661-7.
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Affiliation(s)
- Jialin Chen
- School of Medicine, Southeast University, Nanjing, 210009, China. .,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210096, China. .,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, China.
| | - Qingyun Mo
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Renwang Sheng
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Aijing Zhu
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Chen Ling
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Yifan Luo
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Aini Zhang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Zhixuan Chen
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Qingqiang Yao
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, China.,Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Zhuoying Cai
- Oral and Maxillofacial Surgery, The Second Affiliated Hospital of Zhejiang University, Hangzhou, 310009, China.
| | - Wei Zhang
- School of Medicine, Southeast University, Nanjing, 210009, China. .,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210096, China. .,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, China.
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24
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Zafarmand SS, Karimi-Haghighi S, Salehi MS, Hooshmandi E, Owjfard M, Bayat M, Karimlou S, Pandamooz S, Dianatpour M, Borhani-Haghighi A. Aspirin impacts on stem cells: Implications for therapeutic targets. Tissue Cell 2021; 74:101707. [PMID: 34883315 DOI: 10.1016/j.tice.2021.101707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 11/27/2022]
Abstract
Despite the regenerative potential of stem cell therapy in pre-clinical investigations, clinical translation of cell-based therapy has not been completely clarified. In recent years, the importance of lifestyle, patient comorbidities, and prescribed medication has attracted more attention in the efficacy of cell therapy. As a nonsteroidal anti-inflammatory drug, aspirin is one of the most prevalent prescribed medications in the clinic for various disorders. Hence, aspirin treatment might affect the efficacy of stem cell therapy. In this regard, the current review focused on the impacts of aspirin on the viability, proliferation, differentiation, and immunomodulatory properties of stem cells in vitro as well as in experimental animal models.
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Affiliation(s)
| | | | - Mohammad Saied Salehi
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Etrat Hooshmandi
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Owjfard
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahnaz Bayat
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sedigheh Karimlou
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sareh Pandamooz
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Dianatpour
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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25
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Activated Carbon Fiber Cloth/Biomimetic Apatite: A Dual Drug Delivery System. Int J Mol Sci 2021; 22:ijms222212247. [PMID: 34830128 PMCID: PMC8624510 DOI: 10.3390/ijms222212247] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023] Open
Abstract
A biomaterial that is both bioactive and capable of controlled drug release is highly attractive for bone regeneration. In previous works, we demonstrated the possibility of combining activated carbon fiber cloth (ACC) and biomimetic apatite (such as calcium-deficient hydroxyapatite (CDA)) to develop an efficient material for bone regeneration. The aim to use the adsorption properties of an activated carbon/biomimetic apatite composite to synthetize a biomaterial to be used as a controlled drug release system after implantation. The adsorption and desorption of tetracycline and aspirin were first investigated in the ACC and CDA components and then on ACC/CDA composite. The results showed that drug adsorption and release are dependent on the adsorbent material and the drug polarity/hydrophilicity, leading to two distinct modes of drug adsorption and release. Consequently, a double adsorption approach was successfully performed, leading to a multifunctional and innovative ACC-aspirin/CDA-tetracycline implantable biomaterial. In a second step, in vitro tests emphasized a better affinity of the drug (tetracycline or aspirin)-loaded ACC/CDA materials towards human primary osteoblast viability and proliferation. Then, in vivo experiments on a large cortical bone defect in rats was carried out to test biocompatibility and bone regeneration ability. Data clearly highlighted a significant acceleration of bone reconstruction in the presence of the ACC/CDA patch. The ability of the aspirin-loaded ACC/CDA material to release the drug in situ for improving bone healing was also underlined, as a proof of concept. This work highlights the possibility of bone patches with controlled (multi)drug release features being used for bone tissue repair.
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26
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Wang C, Dong L, Wang Y, Jiang Z, Zhang J, Yang G. Bioinformatics Analysis Identified miR-584-5p and Key miRNA-mRNA Networks Involved in the Osteogenic Differentiation of Human Periodontal Ligament Stem Cells. Front Genet 2021; 12:750827. [PMID: 34646313 PMCID: PMC8503254 DOI: 10.3389/fgene.2021.750827] [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: 07/31/2021] [Accepted: 08/30/2021] [Indexed: 12/29/2022] Open
Abstract
Human periodontal ligament cells (PDLCs) play an important role in periodontal tissue stabilization and function. In the process of osteogenic differentiation of PDLSCs, the regulation of molecular signal pathways are complicated. In this study, the sequencing results of three datasets on GEO were used to comprehensively analyze the miRNA-mRNA network during the osteogenic differentiation of PDLSCs. Using the GSE99958 and GSE159507, a total of 114 common differentially expressed genes (DEGs) were identified, including 62 up-regulated genes and 52 down-regulated genes. GO enrichment analysis was performed. The up-regulated 10 hub genes and down-regulated 10 hub genes were screened out by protein-protein interaction network (PPI) analysis and STRING in Cytoscape. Similarly, differentially expressed miRNAs (DEMs) were selected by limma package from GSE159508. Then, using the miRwalk website, we further selected 11 miRNAs from 16 DEMs that may have a negative regulatory relationship with hub genes. In vitro RT-PCR verification revealed that nine DEMs and 18 hub genes showed the same trend as the RNA-seq results during the osteogenic differentiation of PDLSCs. Finally, using miR-584-5p inhibitor and mimics, it was found that miR-584-5p negatively regulates the osteogenic differentiation of PDLSCs in vitro. In summary, the present results found several potential osteogenic-related genes and identified candidate miRNA-mRNA networks for the further study of osteogenic differentiation of PDLSCs.
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Affiliation(s)
| | | | | | | | | | - Guoli Yang
- Key Laboratory of Oral Biomedical Research of Zhejiang Province, The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China
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27
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Acetylsalicylic Acid Enhanced Neurotrophic Profile of Epidermal Neural Crest Stem Cells: A Possible Approach for the Combination Therapy. PHYSIOLOGY AND PHARMACOLOGY 2021. [DOI: 10.52547/phypha.26.2.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Li B, Ouchi T, Cao Y, Zhao Z, Men Y. Dental-Derived Mesenchymal Stem Cells: State of the Art. Front Cell Dev Biol 2021; 9:654559. [PMID: 34239870 PMCID: PMC8258348 DOI: 10.3389/fcell.2021.654559] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) could be identified in mammalian teeth. Currently, dental-derived MSCs (DMSCs) has become a collective term for all the MSCs isolated from dental pulp, periodontal ligament, dental follicle, apical papilla, and even gingiva. These DMSCs possess similar multipotent potential as bone marrow-derived MSCs, including differentiation into cells that have the characteristics of odontoblasts, cementoblasts, osteoblasts, chondrocytes, myocytes, epithelial cells, neural cells, hepatocytes, and adipocytes. Besides, DMSCs also have powerful immunomodulatory functions, which enable them to orchestrate the surrounding immune microenvironment. These properties enable DMSCs to have a promising approach in injury repair, tissue regeneration, and treatment of various diseases. This review outlines the most recent advances in DMSCs' functions and applications and enlightens how these advances are paving the path for DMSC-based therapies.
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Affiliation(s)
- Bo Li
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Takehito Ouchi
- Department of Dentistry and Oral Surgery, School of Medicine, Keio University, Tokyo, Japan
- Department of Physiology, Tokyo Dental College, Tokyo, Japan
| | - Yubin Cao
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Head and Neck Oncology, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yi Men
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Head and Neck Oncology, West China School of Stomatology, Sichuan University, Chengdu, China
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29
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Maureira M, Cuadra F, Cádiz M, Torres M, Marttens AV, Covarrubias C. Preparation and osteogenic properties of nanocomposite hydrogel beads loaded with nanometric bioactive glass particles. Biomed Mater 2021; 16. [PMID: 34077913 DOI: 10.1088/1748-605x/ac0764] [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: 05/14/2021] [Accepted: 06/02/2021] [Indexed: 12/30/2022]
Abstract
Bone reconstruction in the oral and maxillofacial region presents particular challenges related to the development of biomaterials with osteoinductive properties and suitable physical characteristics for their surgical use in irregular bony defects. In this work, the preparation and bioactivity of chitosan-gelatin (ChG) hydrogel beads loaded with either bioactive glass nanoparticles (nBG) or mesoporous bioactive glass nanospheres (nMBG) were studied.In vitrotesting of the bionanocomposite beads was carried out in simulated body fluid, and through viability and osteogenic differentiation assays using dental pulp stem cells (DPSCs).In vivobone regenerative properties of the biomaterials were assessed using a rat femoral defect model and compared with a traditional maxillary allograft (Puros®). ChG hydrogel beads containing homogeneously distributed BG nanoparticles promoted rapid bone-like apatite mineralization and induced the osteogenic differentiation of DPSCsin vitro. The bionanocomposite beads loaded with either nBG or nMBG also produced a greater bone tissue formationin vivoas compared to Puros® after 8 weeks of implantation. The osteoinductivity capacity of the bionanocomposite hydrogel beads coupled with their physical properties make them promissory for the reconstruction of irregular and less accessible maxillary bone defects.
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Affiliation(s)
- Miguel Maureira
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Independencia, Santiago, Chile
| | - Felipe Cuadra
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Independencia, Santiago, Chile
| | - Monserrat Cádiz
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Independencia, Santiago, Chile
| | - Margarita Torres
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Independencia, Santiago, Chile
| | - Alfredo von Marttens
- Department of Prosthesis, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Cristian Covarrubias
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Independencia, Santiago, Chile
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30
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Jiang S, Wang M, He J. A review of biomimetic scaffolds for bone regeneration: Toward a cell-free strategy. Bioeng Transl Med 2021; 6:e10206. [PMID: 34027093 PMCID: PMC8126827 DOI: 10.1002/btm2.10206] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 11/05/2020] [Accepted: 11/12/2020] [Indexed: 12/20/2022] Open
Abstract
In clinical terms, bone grafting currently involves the application of autogenous, allogeneic, or xenogeneic bone grafts, as well as natural or artificially synthesized materials, such as polymers, bioceramics, and other composites. Many of these are associated with limitations. The ideal scaffold for bone tissue engineering should provide mechanical support while promoting osteogenesis, osteoconduction, and even osteoinduction. There are various structural complications and engineering difficulties to be considered. Here, we describe the biomimetic possibilities of the modification of natural or synthetic materials through physical and chemical design to facilitate bone tissue repair. This review summarizes recent progresses in the strategies for constructing biomimetic scaffolds, including ion-functionalized scaffolds, decellularized extracellular matrix scaffolds, and micro- and nano-scale biomimetic scaffold structures, as well as reactive scaffolds induced by physical factors, and other acellular scaffolds. The fabrication techniques for these scaffolds, along with current strategies in clinical bone repair, are described. The developments in each category are discussed in terms of the connection between the scaffold materials and tissue repair, as well as the interactions with endogenous cells. As the advances in bone tissue engineering move toward application in the clinical setting, the demonstration of the therapeutic efficacy of these novel scaffold designs is critical.
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Affiliation(s)
- Sijing Jiang
- Department of Plastic SurgeryFirst Affiliated Hospital of Anhui Medical University, Anhui Medical UniversityHefeiChina
| | - Mohan Wang
- Stomatologic Hospital & College, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChina
| | - Jiacai He
- Stomatologic Hospital & College, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChina
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31
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d’Avanzo N, Bruno MC, Giudice A, Mancuso A, Gaetano FD, Cristiano MC, Paolino D, Fresta M. Influence of Materials Properties on Bio-Physical Features and Effectiveness of 3D-Scaffolds for Periodontal Regeneration. Molecules 2021; 26:1643. [PMID: 33804244 PMCID: PMC7999474 DOI: 10.3390/molecules26061643] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/14/2022] Open
Abstract
Periodontal diseases are multifactorial disorders, mainly due to severe infections and inflammation which affect the tissues (i.e., gum and dental bone) that support and surround the teeth. These pathologies are characterized by bleeding gums, pain, bad breath and, in more severe forms, can lead to the detachment of gum from teeth, causing their loss. To date it is estimated that severe periodontal diseases affect around 10% of the population worldwide thus making necessary the development of effective treatments able to both reduce the infections and inflammation in injured sites and improve the regeneration of damaged tissues. In this scenario, the use of 3D scaffolds can play a pivotal role by providing an effective platform for drugs, nanosystems, growth factors, stem cells, etc., improving the effectiveness of therapies and reducing their systemic side effects. The aim of this review is to describe the recent progress in periodontal regeneration, highlighting the influence of materials' properties used to realize three-dimensional (3D)-scaffolds, their bio-physical characteristics and their ability to provide a biocompatible platform able to embed nanosystems.
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Affiliation(s)
- Nicola d’Avanzo
- Department of Health Science, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy; (N.d.); (M.C.B.); (A.G.); (A.M.)
- Department of Pharmacy, University of Chieti−Pescara “G. d’Annunzio”, I-66100 Chieti, Italy
| | - Maria Chiara Bruno
- Department of Health Science, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy; (N.d.); (M.C.B.); (A.G.); (A.M.)
| | - Amerigo Giudice
- Department of Health Science, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy; (N.d.); (M.C.B.); (A.G.); (A.M.)
| | - Antonia Mancuso
- Department of Health Science, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy; (N.d.); (M.C.B.); (A.G.); (A.M.)
| | - Federica De Gaetano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres 31, I-98166 Messina, Italy;
| | - Maria Chiara Cristiano
- Department of Experimental and Clinical Medicine, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy;
| | - Donatella Paolino
- Department of Experimental and Clinical Medicine, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy;
| | - Massimo Fresta
- Department of Health Science, University “Magna Græcia” of Catanzaro, Campus Universitario—Germaneto, Viale Europa, I-88100 Catanzaro, Italy; (N.d.); (M.C.B.); (A.G.); (A.M.)
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Ercal P, Pekozer GG. A Current Overview of Scaffold-Based Bone Regeneration Strategies with Dental Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1288:61-85. [PMID: 32185698 DOI: 10.1007/5584_2020_505] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Bone defects due to trauma or diseases still pose a clinical challenge to be resolved in the current tissue engineering approaches. As an alternative to traditional methods to restore bone defects, such as autografts, bone tissue engineering aims to achieve new bone formation via novel biomaterials used in combination with multipotent stem cells and bioactive molecules. Mesenchymal stem cells (MSCs) can be successfully isolated from various dental tissues at different stages of development including dental pulp, apical papilla, dental follicle, tooth germ, deciduous teeth, periodontal ligament and gingiva. A wide range of biomaterials including polymers, ceramics and composites have been investigated for their potential as an ideal bone scaffold material. This article reviews the properties and the manufacturing methods of biomaterials used in bone tissue engineering, and provides an overview of bone tissue regeneration approaches of scaffold and dental stem cell combinations as well as their limitations.
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Affiliation(s)
- Pınar Ercal
- Faculty of Dentistry, Department of Oral Surgery, Altinbas University, Istanbul, Turkey.
| | - Gorke Gurel Pekozer
- Faculty of Electrical and Electronics Engineering, Department of Biomedical Engineering, Yıldız Technical University, Istanbul, Turkey
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Shrestha B, Stojkova K, Yi R, Anastasio MA, Ye JY, Brey EM. Gold nanorods enable noninvasive longitudinal monitoring of hydrogels in vivo with photoacoustic tomography. Acta Biomater 2020; 117:374-383. [PMID: 33010515 DOI: 10.1016/j.actbio.2020.09.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 01/15/2023]
Abstract
Longitudinal in vivo monitoring is essential for the design and evaluation of biomaterials. An ideal method would provide three-dimensional quantitative information, high spatial resolution, deep tissue penetration, and contrast between tissue and material structures. Photoacoustic (PA) or optoacoustic imaging is a hybrid technique that allows three-dimensional imaging with high spatial resolution. In addition, photoacoustic imaging allows for imaging of vascularization based on the intrinsic contrast of hemoglobin. In this study, we investigated photoacoustic computed tomography (PACT) as a tool for longitudinal monitoring of an implanted hydrogel in a small animal model. Hydrogels were loaded with gold nanorods to enhance contrast and imaged weekly for 8 weeks. PACT allowed non-invasive three-dimensional, quantitative imaging of the hydrogels over the entire 8 weeks. Quantitative volume analysis was used to evaluate the in vivo degradation kinetics of the implants which deviated slightly from in vitro predictions. Multispectral imaging allowed for the simultaneous analysis of hydrogel degradation and local vascularization. These results provide support for the substantial potential of PACT as a tool for insight into biomaterial performance in vivo.
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Affiliation(s)
- Binita Shrestha
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, Texas, USA
| | - Katerina Stojkova
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, Texas, USA
| | - Rich Yi
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, Texas, USA
| | - Mark A Anastasio
- Department of Bioengineering, The University of Illinois at Urbana-Champaign, Urbana, IL USA
| | - Jing Yong Ye
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, Texas, USA
| | - Eric M Brey
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, Texas, USA
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Yu T, Wang H, Zhang Y, Wang X, Han B. The Delivery of RNA-Interference Therapies Based on Engineered Hydrogels for Bone Tissue Regeneration. Front Bioeng Biotechnol 2020; 8:445. [PMID: 32478058 PMCID: PMC7235334 DOI: 10.3389/fbioe.2020.00445] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/17/2020] [Indexed: 12/19/2022] Open
Abstract
RNA interference (RNAi) is an efficient post-transcriptional gene modulation strategy mediated by small interfering RNAs (siRNAs) and microRNAs (miRNAs). Since its discovery, RNAi has been utilized extensively to diagnose and treat diseases at both the cellular and molecular levels. However, the application of RNAi therapies in bone regeneration has not progressed to clinical trials. One of the major challenges for RNAi therapies is the lack of efficient and safe delivery vehicles that can actualize sustained release of RNA molecules at the target bone defect site and in surrounding cells. One promising approach to achieve these requirements is encapsulating RNAi molecules into hydrogels for delivery, which enables the nucleic acids to be delivered as RNA conjugates or within nanoparticles. Herein, we reviewed recent investigations into RNAi therapies for bone regeneration where RNA delivery was performed by hydrogels.
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Affiliation(s)
- Tingting Yu
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Hufei Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yunfan Zhang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Bing Han
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
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Synthesis, Characterization, and In Vitro and In Vivo Evaluations of Cellulose Hydrogels Enriched with Larrea tridentata for Regenerative Applications. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1425402. [PMID: 32382527 PMCID: PMC7193276 DOI: 10.1155/2020/1425402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/17/2020] [Accepted: 04/10/2020] [Indexed: 11/17/2022]
Abstract
Introduction Tissue engineering is an elementary necessity for several applications in the biomedical field through the use of several biopolymers derived from plants. Larrea tridentata (LT) is a very used plant for various medicinal applications with interesting properties; however, its use into cellulose hydrogels for possible regenerative therapeutics is still limited. Cellulose films could be applied in medical field as wound healing, scaffold for connective tissue for periodontal applications, and so on. The aim of this study was to evaluate the mechanical properties and in vivo and in vitro biocompatibility of cellulose hydrogels that have been enriched with LT in a rat model. Methods By in vivo and in vitro assays, the concentration of LT was varied from 1 to 5 wt%, respectively. Hydrogel films were implanted intramuscularly into female Wistar rats, 250 g in weight and aged 2 months, to analyze their cytocompatibility and biocompatibility. Results No case showed any evidence of inflammation or toxicity. Regarding cell morphology and adhesion, the prepared LT cellulose films had better cytocompatibility values than when polystyrene (PS) dishes were used as the control. In all cases, the results suggest that the addition of LT to the hydrogel films did not affect their cytocompatibility or biocompatibility properties and increases their clinical application due to the reported uses of LT. Conclusions Cellulose hydrogel films enriched with LT have the potential to be used in the biomedical field acting as regenerative scaffolds.
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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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Li D, Zhou J, Zhang M, Ma Y, Yang Y, Han X, Wang X. Long-term delivery of alendronate through an injectable tetra-PEG hydrogel to promote osteoporosis therapy. Biomater Sci 2020; 8:3138-3146. [PMID: 32352105 DOI: 10.1039/d0bm00376j] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Pharmacotherapy for hypercalcemia, which is mainly caused by osteoporosis, is an effective method to regulate the in vivo calcium equilibrium. From this perspective, the development of a minimally invasive gelling system for the prolonged local delivery of bisphosphonates has practical significance in the clinical therapy of bone osteoporosis. Here, a biocompatible and injectable hydrogel based on a uniform tetra-PEG network carrying a PEG-modified alendronate (ALN) prodrug for the localized elution and long-term sustained release of anti-osteoporotic small molecule drugs is reported. The obtained ALN-based tetra-PEG hydrogels exhibit rapid gel formation and excellent injectability, thereby allowing for the easy injection and consequent adaptation of hydrogels into the bone defects with irregular shapes, which promotes the ALN-based tetra-PEG hydrogels with depot formulation capacity for governing the on-demand release of ALN drugs and local reinforcement of bone osteoporosis at the implantation sites of animals. The findings imply that these injectable hydrogels mediate the optimized release of therapeutic cargoes and effectively promote in situ bone regeneration via minimally invasive procedures, which is effective for clinical osteoporosis therapy.
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Affiliation(s)
- Dawei Li
- The 8th Medical Center of Chinese PLA General Hospital, Beijing, China.
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Parrish E, Rose KA, Cargnello M, Murray CB, Lee D, Composto RJ. Nanoparticle diffusion during gelation of tetra poly(ethylene glycol) provides insight into nanoscale structural evolution. SOFT MATTER 2020; 16:2256-2265. [PMID: 32031561 DOI: 10.1039/c9sm02192b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single particle tracking (SPT) of PEG grafted nanoparticles (NPs) was used to examine the gelation of tetra poly(ethylene glycol) (TPEG) succinimidyl glutarate (TPEG-SG) and amine (TPEG-A) terminated 4-armed stars. As concentration was decreased from 40 to 20 mg mL-1, the onset of network formation, tgel, determined from rheometry increased from less than 2 to 44 minutes. NP mobility increased as polymer concentration decreased in the sol state, but remained diffusive at times past the tgel determined from rheometry. Once in the gel state, NP mobility decreased, became sub-diffusive, and eventually localized in all concentrations. The NP displacement distributions were investigated to gain insight into the nanoscale environment. In these relatively homogeneous gels, the onset of sub-diffusivity was marked by a rapid increase in dynamic heterogeneity followed by a decrease consistent with a homogeneous network. We propose a gelation mechanism in which clusters initially form a heterogeneous structure which fills in to form a fully gelled relatively homogenous network. This work aims to examine the kinetics of TPEG gelation and the homogeneity of these novel gels on the nanometer scale, which will aid in the implementation of these gels in biomedical or filtration applications.
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Affiliation(s)
- Emmabeth Parrish
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, USA.
| | - Katie A Rose
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, CA, USA
| | - Christopher B Murray
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, USA. and Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Russell J Composto
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, USA. and Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, USA and Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
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