1
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Kaur K, Sannoufi R, Butler JS, Murphy CM. Biomimetic Inspired Hydrogels for Regenerative Vertebral Body Stenting. Curr Osteoporos Rep 2023; 21:806-814. [PMID: 38001387 DOI: 10.1007/s11914-023-00839-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/06/2023] [Indexed: 11/26/2023]
Abstract
PURPOSE OF REVIEW This review aims to explore the potential of biomimetic hydrogels as an alternative to bone cement in vertebral body stenting (VBS), a minimally invasive treatment for vertebral compression fractures. RECENT FINDINGS The use of bone cement in VBS procedures can lead to complications such as incomplete fracture reduction and cement leakage. Biomimetic hydrogels have gained significant attention as potential biomaterial alternatives for VBS due to their unique properties, including tuneable therapeutic and mechanical properties. Over the past decade, there has been significant advancements in the development of biomimetic hydrogels for bone regeneration, employing a wide range of approaches to enhance the structural and functional properties of hydrogels. Biomimetic hydrogels hold significant promise as safer and reparative alternatives to bone cement for VBS procedures. However, further research and development in this field are necessary to explore the full potential of hydrogel-based systems for vertebral bone repair.
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Affiliation(s)
- Kulwinder Kaur
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons (RCSI), Dublin, Ireland
- School of Pharmacy and Biomolecular Science, RCSI, Dublin, Ireland
| | - Ruby Sannoufi
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons (RCSI), Dublin, Ireland
| | - Joseph S Butler
- National Spinal Injuries Unit, Mater Misericordiae University Hospital, Dublin, Ireland
- School of Medicine, University of College Dublin, Belfield, Dublin, Ireland
| | - Ciara M Murphy
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons (RCSI), Dublin, Ireland.
- Trinity Centre for Biomedical Engineering, Trinity College Dublin (TCD), Dublin, Ireland.
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland.
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2
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Ni C, Chen D, Yin Y, Wen X, Chen X, Yang C, Chen G, Sun Z, Wen J, Jiao Y, Wang C, Wang N, Kong X, Deng S, Shen Y, Xiao R, Jin X, Li J, Kong X, Zhao Q, Xie T. Shape memory polymer with programmable recovery onset. Nature 2023; 622:748-753. [PMID: 37704734 DOI: 10.1038/s41586-023-06520-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 08/07/2023] [Indexed: 09/15/2023]
Abstract
Stimulus-responsive shape-shifting polymers1-3 have shown unique promise in emerging applications, including soft robotics4-7, medical devices8, aerospace structures9 and flexible electronics10. Their externally triggered shape-shifting behaviour offers on-demand controllability essential for many device applications. Ironically, accessing external triggers (for example, heating or light) under realistic scenarios has become the greatest bottleneck in demanding applications such as implantable medical devices8. Certain shape-shifting polymers rely on naturally present stimuli (for example, human body temperature for implantable devices)8 as triggers. Although they forgo the need for external stimulation, the ability to control recovery onset is also lost. Naturally triggered, yet actively controllable, shape-shifting behaviour is highly desirable but these two attributes are conflicting. Here we achieved this goal with a four-dimensional printable shape memory hydrogel that operates via phase separation, with its shape-shifting kinetics dominated by internal mass diffusion rather than by heat transport used for common shape memory polymers8-11. This hydrogel can undergo shape transformation at natural ambient temperature, critically with a recovery onset delay. This delay is programmable by altering the degree of phase separation during device programming, which offers a unique mechanism for shape-shifting control. Our naturally triggered shape memory polymer with a tunable recovery onset markedly lowers the barrier for device implementation.
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Affiliation(s)
- Chujun Ni
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Di Chen
- Ningbo Innovation Center, Zhejiang University, Ningbo, China
| | - Yu Yin
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Xin Wen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Xiaolan Chen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Chen Yang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Guancong Chen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Zhuo Sun
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Jihang Wen
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
| | - Yurong Jiao
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
| | - Chunyang Wang
- Eye Center, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ning Wang
- Eye Center, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiangxing Kong
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
| | - Shihong Deng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Youqing Shen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Rui Xiao
- State Key Laboratory of Fluid Power & Mechatronic System, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Department of Engineering Mechanics, Zhejiang University, Hangzhou, China
| | - Xiuming Jin
- Eye Center, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jun Li
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
| | - Xueqian Kong
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Qian Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
| | - Tao Xie
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
- Ningbo Innovation Center, Zhejiang University, Ningbo, China.
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, Affiliated Second Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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3
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Patkar SS, Garcia Garcia C, Palmese LL, Kiick KL. Sequence-Encoded Differences in Phase Separation Enable Formation of Resilin-like Polypeptide-Based Microstructured Hydrogels. Biomacromolecules 2023; 24:3729-3741. [PMID: 37525441 DOI: 10.1021/acs.biomac.3c00418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Microstructured hydrogels are promising platforms to mimic structural and compositional heterogeneities of the native extracellular matrix (ECM). The current state-of-the-art soft matter patterning techniques for generating ECM mimics can be limited owing to their reliance on specialized equipment and multiple time- and energy-intensive steps. Here, a photocross-linking methodology that traps various morphologies of phase-separated multicomponent formulations of compositionally distinct resilin-like polypeptides (RLPs) is reported. Turbidimetry and quantitative 1H NMR spectroscopy were utilized to investigate the sequence-dependent liquid-liquid phase separation of multicomponent solutions of RLPs. Differences between the intermolecular interactions of two different photocross-linkable RLPs and a phase-separating templating RLP were exploited for producing microstructured hydrogels with tunable control over pore diameters (ranging from 1.5 to 150 μm) and shear storage moduli (ranging from 0.2 to 5 kPa). The culture of human mesenchymal stem cells demonstrated high viability and attachment on microstructured hydrogels, suggesting their potential for developing customizable platforms for regenerative medicine applications.
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Affiliation(s)
- Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Cristobal Garcia Garcia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Luisa L Palmese
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware 19713, United States
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4
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Zhu Y, Zhang M, Sun Q, Wang X, Li X, Li Q. Advanced Mechanical Testing Technologies at the Cellular Level: The Mechanisms and Application in Tissue Engineering. Polymers (Basel) 2023; 15:3255. [PMID: 37571149 PMCID: PMC10422338 DOI: 10.3390/polym15153255] [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: 07/11/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Mechanics, as a key physical factor which affects cell function and tissue regeneration, is attracting the attention of researchers in the fields of biomaterials, biomechanics, and tissue engineering. The macroscopic mechanical properties of tissue engineering scaffolds have been studied and optimized based on different applications. However, the mechanical properties of the overall scaffold materials are not enough to reveal the mechanical mechanism of the cell-matrix interaction. Hence, the mechanical detection of cell mechanics and cellular-scale microenvironments has become crucial for unraveling the mechanisms which underly cell activities and which are affected by physical factors. This review mainly focuses on the advanced technologies and applications of cell-scale mechanical detection. It summarizes the techniques used in micromechanical performance analysis, including atomic force microscope (AFM), optical tweezer (OT), magnetic tweezer (MT), and traction force microscope (TFM), and analyzes their testing mechanisms. In addition, the application of mechanical testing techniques to cell mechanics and tissue engineering scaffolds, such as hydrogels and porous scaffolds, is summarized and discussed. Finally, it highlights the challenges and prospects of this field. This review is believed to provide valuable insights into micromechanics in tissue engineering.
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Affiliation(s)
- Yingxuan Zhu
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
- National Center for International Joint Research of Micro-nano Moulding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Mengqi Zhang
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
- National Center for International Joint Research of Micro-nano Moulding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Qingqing Sun
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaofeng Wang
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
- National Center for International Joint Research of Micro-nano Moulding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
- National Center for International Joint Research of Micro-nano Moulding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Qian Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
- National Center for International Joint Research of Micro-nano Moulding Technology, Zhengzhou University, Zhengzhou 450001, China
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5
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Topographic Orientation of Scaffolds for Tissue Regeneration: Recent Advances in Biomaterial Design and Applications. Biomimetics (Basel) 2022; 7:biomimetics7030131. [PMID: 36134935 PMCID: PMC9496066 DOI: 10.3390/biomimetics7030131] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/30/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Tissue engineering to develop alternatives for the maintenance, restoration, or enhancement of injured tissues and organs is gaining more and more attention. In tissue engineering, the scaffold used is one of the most critical elements. Its characteristics are expected to mimic the native extracellular matrix and its unique topographical structures. Recently, the topographies of scaffolds have received increasing attention, not least because different topographies, such as aligned and random, have different repair effects on various tissues. In this review, we have focused on various technologies (electrospinning, directional freeze-drying, magnetic freeze-casting, etching, and 3-D printing) to fabricate scaffolds with different topographic orientations, as well as discussed the physicochemical (mechanical properties, porosity, hydrophilicity, and degradation) and biological properties (morphology, distribution, adhesion, proliferation, and migration) of different topographies. Subsequently, we have compiled the effect of scaffold orientation on the regeneration of vessels, skin, neural tissue, bone, articular cartilage, ligaments, tendons, cardiac tissue, corneas, skeletal muscle, and smooth muscle. The compiled information in this review will facilitate the future development of optimal topographical scaffolds for the regeneration of certain tissues. In the majority of tissues, aligned scaffolds are more suitable than random scaffolds for tissue repair and regeneration. The underlying mechanism explaining the various effects of aligned and random orientation might be the differences in “contact guidance”, which stimulate certain biological responses in cells.
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6
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Kong L, Gao X, Qian Y, Sun W, You Z, Fan C. Biomechanical microenvironment in peripheral nerve regeneration: from pathophysiological understanding to tissue engineering development. Am J Cancer Res 2022; 12:4993-5014. [PMID: 35836812 PMCID: PMC9274750 DOI: 10.7150/thno.74571] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/11/2022] [Indexed: 01/12/2023] Open
Abstract
Peripheral nerve injury (PNI) caused by trauma, chronic disease and other factors may lead to partial or complete loss of sensory, motor and autonomic functions, as well as neuropathic pain. Biological activities are always accompanied by mechanical stimulation, and biomechanical microenvironmental homeostasis plays a complicated role in tissue repair and regeneration. Recent studies have focused on the effects of biomechanical microenvironment on peripheral nervous system development and function maintenance, as well as neural regrowth following PNI. For example, biomechanical factors-induced cluster gene expression changes contribute to formation of peripheral nerve structure and maintenance of physiological function. In addition, extracellular matrix and cell responses to biomechanical microenvironment alterations after PNI directly trigger a series of cascades for the well-organized peripheral nerve regeneration (PNR) process, where cell adhesion molecules, cytoskeletons and mechanically gated ion channels serve as mechanosensitive units, mechanical effector including focal adhesion kinase (FAK) and yes-associated protein (YAP)/transcriptional coactivator with PDZ-binding motif (TAZ) as mechanotransduction elements. With the rapid development of tissue engineering techniques, a substantial number of PNR strategies such as aligned nerve guidance conduits, three-dimensional topological designs and piezoelectric scaffolds emerge expected to improve the neural biomechanical microenvironment in case of PNI. These tissue engineering nerve grafts display optimized mechanical properties and outstanding mechanomodulatory effects, but a few bottlenecks restrict their application scenes. In this review, the current understanding in biomechanical microenvironment homeostasis associated with peripheral nerve function and PNR is integrated, where we proposed the importance of balances of mechanosensitive elements, cytoskeletal structures, mechanotransduction cascades, and extracellular matrix components; a wide variety of promising tissue engineering strategies based on biomechanical modulation are introduced with some suggestions and prospects for future directions.
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Affiliation(s)
- Lingchi Kong
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China.,Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Xin Gao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, China
| | - Yun Qian
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China.,Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.,✉ Corresponding authors: Yun Qian, E-mail: ; Wei Sun, E-mail: ; Zhengwei You, E-mail: ; Cunyi Fan, E-mail:
| | - Wei Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, China.,✉ Corresponding authors: Yun Qian, E-mail: ; Wei Sun, E-mail: ; Zhengwei You, E-mail: ; Cunyi Fan, E-mail:
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, China.,✉ Corresponding authors: Yun Qian, E-mail: ; Wei Sun, E-mail: ; Zhengwei You, E-mail: ; Cunyi Fan, E-mail:
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.,Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, 200233, China.,Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.,✉ Corresponding authors: Yun Qian, E-mail: ; Wei Sun, E-mail: ; Zhengwei You, E-mail: ; Cunyi Fan, E-mail:
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7
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Fracture behaviors of double network elastomers with dynamic non-covalent linkages: A molecular dynamics study. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Zheng J, Zhao Z, Yang Y, Wang S, Zhao Y, Xiong Y, Yang S, Qiu Z, Song T, Zhang C, Wang X. Biphasic mineralized collagen based composite scaffold for cranial bone regeneration in developing sheep. Regen Biomater 2022; 9:rbac004. [PMID: 35592140 PMCID: PMC9113234 DOI: 10.1093/rb/rbac004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022] Open
Abstract
Appropriate mechanical support and excellent osteogenic capability are two essential prerequisites of customized implants for regenerating large-sized cranial bone defect. Although porous bone scaffolds have been widely proven to promote bone regeneration, their weak mechanical properties limit the clinical applications in cranioplasty. Herein, we applied two previously developed mineralized collagen-based bone scaffolds (MC), porous MC (pMC) and compact MC (cMC) to construct a biphasic MC composite bone scaffold (bMC) to repair the large-sized cranial bone defect in developing sheep. A supporting frame composed of cMC phase in the shape of tic–tac–toe structure was fabricated first and then embedded in pMC phase. The two phases had good interfacial bond, attributing to the formation of an interfacial zone. The in vivo performance of the bMC scaffold was evaluated by using a cranial bone defect model in 1-month-old sheep. The computed tomography imaging, X-ray scanning and histological evaluation showed that the pMC phase in the bMC scaffold, similar to the pMC scaffold, was gradually replaced by the regenerative bone tissues with comprehensively increased bone mineral density and complete connection of bone bridge in the whole region. The cMC frame promoted new bone formation beneath the frame without obvious degradation, thus providing appropriate mechanical protection and ensuring the structural integrity of the implant. In general, the sheep with bMC implantation exhibited the best status of survival, growth and the repair effect. The biphasic structural design may be a prospective strategy for developing new generation of cranioplasty materials to regenerate cranial bone defect in clinic.
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Affiliation(s)
- Jingchuan Zheng
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhijun Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Baotou Medical School, Baotou, 014010, China
| | - Yongdong Yang
- Dongzhimen Hospital Affiliated Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Shuo Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Yonggang Zhao
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Yang Xiong
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Shuhui Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhiye Qiu
- Beijing Allgens Medical Science and Technology Co., Ltd., 100176, China, Beijing
| | - Tianxi Song
- Beijing Allgens Medical Science and Technology Co., Ltd., 100176, China, Beijing
| | - Chunyang Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Baotou Medical School, Baotou, 014010, China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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Imam SS, Hussain A, Altamimi MA, Alshehri S. Four-Dimensional Printing for Hydrogel: Theoretical Concept, 4D Materials, Shape-Morphing Way, and Future Perspectives. Polymers (Basel) 2021; 13:3858. [PMID: 34771414 PMCID: PMC8588409 DOI: 10.3390/polym13213858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/31/2021] [Accepted: 11/03/2021] [Indexed: 12/21/2022] Open
Abstract
The limitations and challenges possessed in static 3D materials necessitated a new era of 4D shape-morphing constructs for wide applications in diverse fields of science. Shape-morphing behavior of 3D constructs over time is 4D design. Four-dimensional printing technology overcomes the static nature of 3D, improves substantial mechanical strength, and instills versatility and clinical and nonclinical functionality under set environmental conditions (physiological and artificial). Four-dimensional printing of hydrogel-forming materials possesses remarkable properties compared to other printing techniques and has emerged as the most established technique for drug delivery, disease diagnosis, tissue engineering, and biomedical application using shape-morphing materials (natural, synthetic, semisynthetic, and functionalized) in response to single or multiple stimuli. In this article, we addressed a fundamental concept of 4D-printing evolution, 4D printing of hydrogel, shape-morphing way, classification, and future challenges. Moreover, the study compiled a comparative analysis of 4D techniques, 4D products, and mechanical perspectives for their functionality and shape-morphing dynamics. Eventually, despite several advantages of 4D technology over 3D technique in hydrogel fabrication, there are still various challenges to address with using current advanced and sophisticated technology for rapid, safe, biocompatible, and clinical transformation from small-scale laboratory (lab-to-bed translation) to commercial scale.
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Affiliation(s)
- Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.A.); (S.A.)
| | - Afzal Hussain
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.A.); (S.A.)
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10
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Zhan Y, Deng B, Wu H, Xu C, Wang R, Li W, Pan Z. Biomineralized Composite Liquid Crystal Fiber Scaffold Promotes Bone Regeneration by Enhancement of Osteogenesis and Angiogenesis. Front Pharmacol 2021; 12:736301. [PMID: 34819856 PMCID: PMC8606401 DOI: 10.3389/fphar.2021.736301] [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: 07/08/2021] [Accepted: 10/15/2021] [Indexed: 11/29/2022] Open
Abstract
Liquid crystals (LCs) are appealing biomaterials for applications in bone regenerative medicine due to their tunable physical properties and anisotropic viscoelastic behavior. This study reports a novel composite poly (L-lactide) (PLLA) scaffold that is manufactured by a simple electrospinning and biomineralization technique that precisely controls the fibrous structure in liquid LC phase. The enriched-LC composites have superior mineralization ability than neat PLLA; furthermore BMSC cells were inoculated onto the HAP-PLLA/LC with hydroxyapatite (HAP) composite scaffold to test the capability for osteogenesis in vitro. The results show that the PLLA/LC with HAP produced by mineralization leads to better cell compatibility, which is beneficial to cell proliferation, osteogenic differentiation, and expression of the angiogenic CD31 gene. Moreover, in vivo studies showed that the HAP-PLLA/LC scaffold with a bone-like environment significantly accelerates new and mature lamellar bone formation by development of a microenvironment for vascularized bone regeneration. Thus, this bionic composite scaffold in an LC state combining osteogenesis with vascularized activities is a promising biomaterial for bone regeneration in defective areas.
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Affiliation(s)
- Yi Zhan
- Department of Orthopedic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Bing Deng
- Department of Orthopedic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Huixian Wu
- Department of Orthopedic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Changpeng Xu
- Department of Orthopaedics, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Ruiying Wang
- Department of Orthopedic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Wenqiang Li
- Engineering Technology Research Center for Sports Assistive Devices of Guangdong, Guangzhou Sport University, Guangzhou, China
| | - Zhixiong Pan
- Department of Orthopedic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, China
- Guangxi Health Commission Key Laboratory of Basic Research in Sphingolipid Metabolism Related Diseases, The Affiliated Hospital of Guilin Medical University, Guilin, China
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11
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Wang B, Patkar SS, Kiick KL. Application of Thermoresponsive Intrinsically Disordered Protein Polymers in Nanostructured and Microstructured Materials. Macromol Biosci 2021; 21:e2100129. [PMID: 34145967 PMCID: PMC8449816 DOI: 10.1002/mabi.202100129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/25/2021] [Indexed: 01/15/2023]
Abstract
Modulation of inter- and intramolecular interactions between bioinspired designer molecules can be harnessed for developing functional structures that mimic the complex hierarchical organization of multicomponent assemblies observed in nature. Furthermore, such multistimuli-responsive molecules offer orthogonal tunability for generating versatile multifunctional platforms via independent biochemical and biophysical cues. In this review, the remarkable physicochemical and mechanical properties of genetically engineered protein polymers derived from intrinsically disordered proteins, specifically elastin and resilin, are discussed. This review highlights emerging technologies which use them as building blocks in the fabrication of highly programmable structured biomaterials for applications in delivery of biotherapeutic cargo and regenerative medicine.
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Affiliation(s)
- Bin Wang
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Laboratory, Newark, DE, 19716, USA
- Delaware Biotechnology Institute, Ammon Pinizzotto Biopharmaceutical Innovation Center, 590 Avenue 1743, Newark, DE, 19713, USA
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12
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Khiabani SS, Aghazadeh M, Rakhtshah J, Davaran S. A review of hydrogel systems based on poly(N-isopropyl acrylamide) for use in the engineering of bone tissues. Colloids Surf B Biointerfaces 2021; 208:112035. [PMID: 34455315 DOI: 10.1016/j.colsurfb.2021.112035] [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: 01/30/2021] [Revised: 05/24/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
Bone fracture is usually a medical condition where occurred by high force impact or stress. Recent advances to repair damaged or diseased bone tissues employs three-dimensional (3D) polymer matrices. This review aims to investigate the potential of injectable, dual thermally, and chemically gelable N-isopropyl acrylamide-based hydrogels to deliver scaffold, cells, and growth factors in vitro and in vivo.
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Affiliation(s)
| | - Marziyeh Aghazadeh
- Oral Medicine Department of Dental Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jamshid Rakhtshah
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soodabeh Davaran
- Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Health Innovation Acceleration Center of Tabriz University of Medical Science and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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13
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El-Habashy SE, El-Kamel AH, Essawy MM, Abdelfattah EZA, Eltaher HM. 3D printed bioinspired scaffolds integrating doxycycline nanoparticles: Customizable implants for in vivo osteoregeneration. Int J Pharm 2021; 607:121002. [PMID: 34390809 DOI: 10.1016/j.ijpharm.2021.121002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
3D printing has revolutionized pharmaceutical research, with applications encompassing tissue regeneration and drug delivery. Adopting 3D printing for pharmaceutical drug delivery personalization via nanoparticle-reinforced hydrogel scaffolds promises great regenerative potential. Herein, we engineered novel core/shell, bio-inspired, drug-loaded polymeric hydrogel scaffolds for pharmaceutically personalized drug delivery and superior osteoregeneration. Scaffolds were developed using biopolymeric blends of gelatin, polyvinyl alcohol and hyaluronic acid and integrated with composite doxycycline/hydroxyapatite/polycaprolactone nanoparticles (DX/HAp/PCL) innovatively via 3D printing. The developed scaffolds were optimized for swelling pattern and in-vitro drug release through tailoring the biphasic microstructure and wet/dry state to attain various pharmaceutical personalization platforms. Freeze-dried scaffolds with nanoparticles reinforcing the core phase (DX/HAp/PCL-LCS-FD) demonstrated favorably controlled swelling, preserved structural integrity and controlled drug release over 28 days. DX/HAp/PCL-LCS-FD featured double-ranged pore size (90.4 ± 3.9 and 196.6 ± 38.8 µm for shell and core phases, respectively), interconnected porosity and superior mechanical stiffness (74.5 ± 6.8 kPa) for osteogenic functionality. Cell spreading analysis, computed tomography and histomorphometry in a rabbit tibial model confirmed osteoconduction, bioresorption, immune tolerance and bone regenerative potential of the original scaffolds, affording complete defect healing with bone tissue. Our findings suggest that the developed platforms promise prominent local drug delivery and bone regeneration.
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Affiliation(s)
- Salma E El-Habashy
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Amal H El-Kamel
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt.
| | - Marwa M Essawy
- Oral Pathology Department, Faculty of Dentistry, Alexandria University, 21500 Alexandria, Egypt; Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, 21131 Alexandria, Egypt
| | | | - Hoda M Eltaher
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
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14
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Wang L, Yang Q, Huo M, Lu D, Gao Y, Chen Y, Xu H. Engineering Single-Atomic Iron-Catalyst-Integrated 3D-Printed Bioscaffolds for Osteosarcoma Destruction with Antibacterial and Bone Defect Regeneration Bioactivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100150. [PMID: 34146359 DOI: 10.1002/adma.202100150] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/28/2021] [Indexed: 05/23/2023]
Abstract
Effective antitumor therapeutics with distinctive bactericidal and osteogenic properties are in high demand for comprehensive osteosarcoma treatment. Here, a "scaffold engineering" strategy that integrates highly active single-atomic iron catalysts (FeSAC) into a 3D printed bioactive glass (BG) scaffold is reported. Based on the atomically dispersed iron species within the catalysts, the engineered FeSAC displays prominent Fenton catalytic activity to generate toxic hydroxyl radicals (•OH) in response to the microenvironment specific to osteosarcoma. In addition, the constructed FeSAC-BG scaffold can serve as a sophisticated biomaterial platform for efficient osteosarcoma ablation, with concomitant bacterial sterilization via localized hyperthermia-reinforced nanocatalytic therapeutics. The destruction of the osteosarcoma, as well as the bacterial foci, can be achieved, further preventing susceptible chronic osteomyelitis during osteogenesis. In particular, the engineered FeSAC-BG scaffold is identified with advances in accelerated osteoconduction and osteoinduction, ultimately contributing to the sophisticated therapeutics and management of osteosarcoma. This work broadens the biomedical potential of single-atom catalysts and offers a comprehensive clinically feasible strategy for overall osteosarcoma therapeutics, bacterial inhibition, and tissue regeneration.
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Affiliation(s)
- Liying Wang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center of Interventional Medicine, Shanghai, 200072, P. R. China
| | - Qianhao Yang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, P. R. China
| | - Minfeng Huo
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Dan Lu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center of Interventional Medicine, Shanghai, 200072, P. R. China
| | - Youshui Gao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, P. R. China
| | - Yu Chen
- Shanghai Engineering Research Center of Organ Repair, Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, P. R. China
| | - Huixiong Xu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University Cancer Center, Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center of Interventional Medicine, Shanghai, 200072, P. R. China
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15
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Silver nanoparticles prepared by solid-state redox route from HEC for conductive, long-term durable and recycling artificial soft electronics. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Fracture Healing Research-Shift towards In Vitro Modeling? Biomedicines 2021; 9:biomedicines9070748. [PMID: 34203470 PMCID: PMC8301383 DOI: 10.3390/biomedicines9070748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 01/07/2023] Open
Abstract
Fractures are one of the most frequently occurring traumatic events worldwide. Approximately 10% of fractures lead to bone healing disorders, resulting in strain for affected patients and enormous costs for society. In order to shed light into underlying mechanisms of bone regeneration (habitual or disturbed), and to develop new therapeutic strategies, various in vivo, ex vivo and in vitro models can be applied. Undeniably, in vivo models include the systemic and biological situation. However, transferability towards the human patient along with ethical concerns regarding in vivo models have to be considered. Fostered by enormous technical improvements, such as bioreactors, on-a-chip-technologies and bone tissue engineering, sophisticated in vitro models are of rising interest. These models offer the possibility to use human cells from individual donors, complex cell systems and 3D models, therefore bridging the transferability gap, providing a platform for the introduction of personalized precision medicine and finally sparing animals. Facing diverse processes during fracture healing and thus various scientific opportunities, the reliability of results oftentimes depends on the choice of an appropriate model. Hence, we here focus on categorizing available models with respect to the requirements of the scientific approach.
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17
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El-Habashy SE, El-Kamel AH, Essawy MM, Abdelfattah EZA, Eltaher HM. Engineering 3D-printed core-shell hydrogel scaffolds reinforced with hybrid hydroxyapatite/polycaprolactone nanoparticles for in vivo bone regeneration. Biomater Sci 2021; 9:4019-4039. [PMID: 33899858 DOI: 10.1039/d1bm00062d] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The versatility of 3D printing has rendered it an indispensable tool for the fabrication of composite hydrogel scaffolds, offering bone biomimetic features through inorganic and biopolymeric components as promising platforms for osteoregeneration. In this work, extrusion-based 3D printing was employed for the realization of osteoconductive composite biopolymer-based hydrogel scaffolds reinforced with hybrid bioactive hydroxyapatite/polycaprolactone nanoparticles (HAp/PCL NPs) for osteoregeneration. The printing technique was optimized for ink printability and viscosity and crosslinking parameters, where a biopolymeric blend of gelatin, polyvinyl alcohol and hyaluronic acid was developed as innovative plain polymeric ink (PPI). Scaffolds were fabricated by 3D printing adopting a biphasic core/shell geometry, where the core phase of the scaffolds was reinforced with HAp/PCL NPs; the scaffolds were then freeze-dried. Novel composite freeze-dried, loaded-core scaffolds, HAp/PCL NPs-LCS-FD exhibited controlled swelling and maintained structural integrity for 28 days. The developed HAp/PCL NPs-LCS-FD also demonstrated double-ranged pore size, interconnected porosity and efficient mechanical stiffness and strength, favorable for osteoconductive actions. Cell infiltration studies, computed tomography and histomorphometry demonstrated that HAp/PCL NPs-LCS-FD afforded osteoconduction, biodegradation, biocompatibility and bone healing in rabbit tibial model, acting as a template for new bone formation. Our findings suggest that HAp/PCL NPs-LCS-FD could offer prominent bone regeneration and could be involved in various bone defects.
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Affiliation(s)
- Salma E El-Habashy
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
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18
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Neffe AT, Löwenberg C, Julich-Gruner KK, Behl M, Lendlein A. Thermally-Induced Shape-Memory Behavior of Degradable Gelatin-Based Networks. Int J Mol Sci 2021; 22:5892. [PMID: 34072689 PMCID: PMC8197998 DOI: 10.3390/ijms22115892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022] Open
Abstract
Shape-memory hydrogels (SMH) are multifunctional, actively-moving polymers of interest in biomedicine. In loosely crosslinked polymer networks, gelatin chains may form triple helices, which can act as temporary net points in SMH, depending on the presence of salts. Here, we show programming and initiation of the shape-memory effect of such networks based on a thermomechanical process compatible with the physiological environment. The SMH were synthesized by reaction of glycidylmethacrylated gelatin with oligo(ethylene glycol) (OEG) α,ω-dithiols of varying crosslinker length and amount. Triple helicalization of gelatin chains is shown directly by wide-angle X-ray scattering and indirectly via the mechanical behavior at different temperatures. The ability to form triple helices increased with the molar mass of the crosslinker. Hydrogels had storage moduli of 0.27-23 kPa and Young's moduli of 215-360 kPa at 4 °C. The hydrogels were hydrolytically degradable, with full degradation to water-soluble products within one week at 37 °C and pH = 7.4. A thermally-induced shape-memory effect is demonstrated in bending as well as in compression tests, in which shape recovery with excellent shape-recovery rates Rr close to 100% were observed. In the future, the material presented here could be applied, e.g., as self-anchoring devices mechanically resembling the extracellular matrix.
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Affiliation(s)
- Axel T. Neffe
- Institute of Active Polymers and Berlin-Brandenburg Center of Regenerative Therapies, Helm-holtz-Zentrum Hereon, 14513 Teltow, Germany; (A.T.N.); (C.L.); (K.K.J.-G.); (M.B.)
| | - Candy Löwenberg
- Institute of Active Polymers and Berlin-Brandenburg Center of Regenerative Therapies, Helm-holtz-Zentrum Hereon, 14513 Teltow, Germany; (A.T.N.); (C.L.); (K.K.J.-G.); (M.B.)
| | - Konstanze K. Julich-Gruner
- Institute of Active Polymers and Berlin-Brandenburg Center of Regenerative Therapies, Helm-holtz-Zentrum Hereon, 14513 Teltow, Germany; (A.T.N.); (C.L.); (K.K.J.-G.); (M.B.)
| | - Marc Behl
- Institute of Active Polymers and Berlin-Brandenburg Center of Regenerative Therapies, Helm-holtz-Zentrum Hereon, 14513 Teltow, Germany; (A.T.N.); (C.L.); (K.K.J.-G.); (M.B.)
| | - Andreas Lendlein
- Institute of Active Polymers and Berlin-Brandenburg Center of Regenerative Therapies, Helm-holtz-Zentrum Hereon, 14513 Teltow, Germany; (A.T.N.); (C.L.); (K.K.J.-G.); (M.B.)
- Institute of Chemistry, University of Potsdam, 14476 Potsdam, Germany
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19
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Yang Y, Wang M, Luo M, Chen M, Wei K, Lei B. Injectable self-healing bioactive antioxidative one-component poly(salicylic acid) hydrogel with strong ultraviolet-shielding for preventing skin light injury. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112107. [PMID: 34082930 DOI: 10.1016/j.msec.2021.112107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/22/2021] [Accepted: 04/02/2021] [Indexed: 12/29/2022]
Abstract
The design and development of one-component temperature-sensitive bioactive hydrogel with multifunctional properties for protecting skin against light injury remain a challenge. Herein, we report a bioactive multifunctional poly(salicylic acid)-F127-poly(salicylic acid) copolymer hydrogel (FPSa) with one-component for potential skin protection applications. The FPSa hydrogel possesses the thermosensitivity (23 °C), injectability, self-healing ability, ultraviolet shielding (shielding the wavelength between 280 and 370 nm), and antioxidation activity (above 70%), and also showed the good cytocompatibility (cell survival rate >90% and hemolysis rate less than 5%) and biodegradability (90% weight loss at 3 days). The in vivo animal model showed that FPSa hydrogel could effectively protect the skin tissue and prevent the ultraviolet induced injury. This study can provide a strategy to design multifunctional bioactive hydrogel with simple composition for disease therapy and regenerative medicine.
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Affiliation(s)
- Yulian Yang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Min Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China
| | - Meng Luo
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China
| | - Mi Chen
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China
| | - Kun Wei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China.
| | - Bo Lei
- State key laboratory for manufacturing, systems engineering, Xi'an Jiaotong University, Xi'an 710000, China; Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China; National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710000, China; Instrument Analysis Center, Xi'an Jiaotong University, Xi'an 710054, China.
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20
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Folikumah MY, Behl M, Lendlein A. Thiol-Thioester Exchange Reactions in Precursors Enable pH-Triggered Hydrogel Formation. Biomacromolecules 2021; 22:1875-1884. [PMID: 33724816 DOI: 10.1021/acs.biomac.0c01690] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Bio-interactive hydrogel formation in situ requires sensory capabilities toward physiologically relevant stimuli. Here, we report on pH-controlled in situ hydrogel formation relying on latent cross-linkers, which transform from pH sensors to reactive molecules. In particular, thiopeptolide/thio-depsipeptides were capable of pH-sensitive thiol-thioester exchange reactions to yield α,ω-dithiols, which react with maleimide-functionalized multi-arm polyethylene glycol to polymer networks. Their water solubility and diffusibility qualify thiol/thioester-containing peptide mimetics as sensory precursors to drive in situ localized hydrogel formation with potential applications in tissue regeneration such as treatment of inflamed tissues of the urinary tract.
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Affiliation(s)
- Makafui Y Folikumah
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, 14513 Teltow, Germany.,Institute of Chemistry, University of Potsdam, 14476 Potsdam, Germany
| | - Marc Behl
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, 14513 Teltow, Germany
| | - Andreas Lendlein
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, 14513 Teltow, Germany.,Institute of Chemistry, University of Potsdam, 14476 Potsdam, Germany
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21
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Cunha FB, Pomini KT, Plepis AMDG, Martins VDCA, Machado EG, de Moraes R, Munhoz MDAES, Machado MVR, Duarte MAH, Alcalde MP, Buchaim DV, Buchaim RL, Fernandes VAR, Pereira EDSBM, Pelegrine AA, da Cunha MR. In Vivo Biological Behavior of Polymer Scaffolds of Natural Origin in the Bone Repair Process. Molecules 2021; 26:molecules26061598. [PMID: 33805847 PMCID: PMC8002007 DOI: 10.3390/molecules26061598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 03/09/2021] [Indexed: 12/15/2022] Open
Abstract
Autologous bone grafts, used mainly in extensive bone loss, are considered the gold standard treatment in regenerative medicine, but still have limitations mainly in relation to the amount of bone available, donor area, morbidity and creation of additional surgical area. This fact encourages tissue engineering in relation to the need to develop new biomaterials, from sources other than the individual himself. Therefore, the present study aimed to investigate the effects of an elastin and collagen matrix on the bone repair process in critical size defects in rat calvaria. The animals (Wistar rats, n = 30) were submitted to a surgical procedure to create the bone defect and were divided into three groups: Control Group (CG, n = 10), defects filled with blood clot; E24/37 Group (E24/37, n = 10), defects filled with bovine elastin matrix hydrolyzed for 24 h at 37 °C and C24/25 Group (C24/25, n = 10), defects filled with porcine collagen matrix hydrolyzed for 24 h at 25 °C. Macroscopic and radiographic analyses demonstrated the absence of inflammatory signs and infection. Microtomographical 2D and 3D images showed centripetal bone growth and restricted margins of the bone defect. Histologically, the images confirmed the pattern of bone deposition at the margins of the remaining bone and without complete closure by bone tissue. In the morphometric analysis, the groups E24/37 and C24/25 (13.68 ± 1.44; 53.20 ± 4.47, respectively) showed statistically significant differences in relation to the CG (5.86 ± 2.87). It was concluded that the matrices used as scaffolds are biocompatible and increase the formation of new bone in a critical size defect, with greater formation in the polymer derived from the intestinal serous layer of porcine origin (C24/25).
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Affiliation(s)
- Fernando Bento Cunha
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil;
| | - Karina Torres Pomini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, SP, Brazil;
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil;
| | - Ana Maria de Guzzi Plepis
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil;
- São Carlos Institute of Chemistry, University of São Paulo, USP, São Carlos 13566-590, SP, Brazil;
| | | | - Eduardo Gomes Machado
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil;
| | - Renato de Moraes
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil;
| | - Marcelo de Azevedo e Souza Munhoz
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil;
| | - Michela Vanessa Ribeiro Machado
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
| | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, SP, Brazil;
| | - Murilo Priori Alcalde
- Department of Health Science, Unisagrado University Center, Bauru 17011-160, SP, Brazil;
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil;
- Medical School, University Center of Adamantina (UniFAI), Adamantina 17800-000, SP, Brazil
| | - Rogério Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, SP, Brazil;
- Correspondence: ; Tel.: +55-1432358220
| | - Victor Augusto Ramos Fernandes
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
- Laboratory of Anatomy, University Center Our Lady of Patronage (CEUNSP), University of South Cruise, Itu 13300-200, SP, Brazil
| | | | - André Antonio Pelegrine
- Research Institute, Postgraduate Program, São Leopoldo Mandic, School of Dentistry, Campinas 13045-755, SP, Brazil;
| | - Marcelo Rodrigues da Cunha
- Department of Morphology and Pathology, Medical College of Jundiai, Jundiaí, São Paulo 13202-550, SP, Brazil; (F.B.C.); (E.G.M.); (R.d.M.); (M.d.A.eS.M.); (M.V.R.M.); (V.A.R.F.); (M.R.d.C.)
- Interunit Postgraduate Program in Bioengineering (EESC/FMRP/IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil;
- Laboratory of Anatomy, University Center Our Lady of Patronage (CEUNSP), University of South Cruise, Itu 13300-200, SP, Brazil
- Research Institute, Postgraduate Program, São Leopoldo Mandic, School of Dentistry, Campinas 13045-755, SP, Brazil;
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22
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Krüger-Genge A, Hauser S, Neffe AT, Liu Y, Lendlein A, Pietzsch J, Jung F. Response of Endothelial Cells to Gelatin-Based Hydrogels. ACS Biomater Sci Eng 2021; 7:527-540. [PMID: 33496571 DOI: 10.1021/acsbiomaterials.0c01432] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The establishment of confluent endothelial cell (EC) monolayers on implanted materials has been identified as a concept to avoid thrombus formation but is a continuous challenge in cardiovascular device engineering. Here, material properties of gelatin-based hydrogels obtained by reacting gelatin with varying amounts of lysine diisocyanate ethyl ester were correlated with the functional state of hydrogel contacting venous EC (HUVEC) and HUVEC's ability to form a monolayer on these hydrogels. The density of adherent HUVEC on the softest hydrogel at 37 °C (G' = 1.02 kPa, E = 1.1 ± 0.3 kPa) was significantly lower (125 mm-1) than on the stiffer hydrogels (920 mm-1; G' = 2.515 and 5.02 kPa, E = 4.8 ± 0.8 and 10.3 ± 1.2 kPa). This was accompanied by increased matrix metalloprotease activity (9 pmol·min-2 compared to 0.6 pmol·min-2) and stress fiber formation, while cell-to-cell contacts were comparable. Likewise, release of eicosanoids (e.g., prostacyclin release of 1.7 vs 0.2 pg·mL-1·cell-1) and the pro-inflammatory cytokine MCP-1 (8 vs <1.5 pg·mL-1·cell-1) was higher on the softer than on the stiffer hydrogels. The expressions of pro-inflammatory markers COX-2, COX-1, and RAGE were slightly increased on all hydrogels on day 2 (up to 200% of the control), indicating a weak inflammation; however, the levels dropped to below the control from day 6. The study revealed that hydrogels with higher moduli approached the status of a functionally confluent HUVEC monolayer. The results indicate the promising potential especially of the discussed gelatin-based hydrogels with higher G' as biomaterials for implants foreseen for the venous system.
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Affiliation(s)
- Anne Krüger-Genge
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | - Sandra Hauser
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Axel T Neffe
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Kantstr. 55, 14513 Teltow, Germany
| | - Yue Liu
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | - Andreas Lendlein
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Kantstr. 55, 14513 Teltow, Germany.,Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,School of Science, Faculty of Chemistry and Food Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Friedrich Jung
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Kantstr. 55, 14513 Teltow, Germany
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23
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Biofabrication of aligned structures that guide cell orientation and applications in tissue engineering. Biodes Manuf 2021. [DOI: 10.1007/s42242-020-00104-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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24
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A novel magnesium ion-incorporating dual-crosslinked hydrogel to improve bone scaffold-mediated osteogenesis and angiogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111868. [PMID: 33579495 DOI: 10.1016/j.msec.2021.111868] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/14/2020] [Accepted: 01/03/2021] [Indexed: 02/07/2023]
Abstract
Osteogenesis is closely complemented by angiogenesis during the bone regeneration process. The development of functional hydrogel bone substitutes that mimic the extracellular matrix is a promising strategy for bone tissue engineering. However, the development of scaffold materials tailored to exhibit sufficient biomechanics, biodegradability, and favorable osteogenic and angiogenic activity continue to present a great challenge. Herein, we prepared a novel magnesium ion-incorporating dual-crosslinked hydrogel through the photocrosslinking of gelatin methacryloyl (GelMA), thiolated chitosan (TCS) and modified polyhedral oligomeric silsesquioxane (POSS) nanoparticles, and active Mg2+ ions were then introduced into system via coordination bonds of MgS, which can be tailored to possess superior mechanical strength, a stable network structure and more suitable pore size and degradation properties. The fabricated GelMA/TCS/POSS-Mg hydrogels effectively promoted cell adhesion, spreading, and proliferation, demonstrating that the introduction of POSS and Mg2+ not only stimulates the osteogenic differentiation of BMSCs but also promotes angiogenesis both in vitro and in vivo, thereby facilitating subsequent bone regeneration in calvarial defects of rats. Taken together, the results of this study indicate that the GelMA/TCS/POSS-Mg hydrogel has promising potential for repairing bone defects by promoting cell adhesion, osteogenesis and vascularization.
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25
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Wang C, Yue H, Liu J, Zhao Q, He Z, Li K, Lu B, Huang W, Wei Y, Tang Y, Wang M. Advanced reconfigurable scaffolds fabricated by 4D printing for treating critical-size bone defects of irregular shapes. Biofabrication 2020; 12:045025. [PMID: 32736373 DOI: 10.1088/1758-5090/abab5b] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
While scaffold-based tissue engineering has been widely used to treat bone critical-size defects, challenges such as implantation of scaffolds in defects with irregular shapes and implantation of scaffolds through minimally invasive surgery remain in the tissue engineering field. Customized bioactive bone tissue engineering scaffolds with reconfigurable capability for both easy scaffold implantation and perfect shape fitting in irregularly shaped bone defects are therefore needed. Herein, applying 4D printing, photothermal-responsive shape memory bone tissue engineering scaffolds are constructed by incorporating black phosphorus nanosheets and osteogenic peptide into β-tricalcium phosphate/poly(lactic acid-co-trimethylene carbonate) (TCP/P(DLLA-TMC)) nanocomposite scaffolds. When near-infrared irradiation is applied to customized scaffolds on-demand, scaffold temperature rapidly increases to 45 °C, enabling scaffold shape reconfiguration for easy scaffold implantation and precise fitting in irregular bone defects. Once the implantation is finished, scaffold temperature rapidly decreases to 37 °C and scaffolds display mechanical properties comparable to those of human cancellous bone. The improved osteogenesis in bone defect sites is then initiated through pulsed peptide release from scaffolds. Compact integration of reconfigurable scaffolds in rat cranial bone defects and improved new bone formation are demonstrated through micro-computed tomography and histochemical analyses. This study shows a facile method to clinically treat bone defects of irregular shapes.
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Affiliation(s)
- Chong Wang
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, Guangdong, People's Republic of China. Contributed equally. Author to whom any correspondence should be addressed
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26
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Löwenberg C, Tripodo G, Julich‐Gruner KK, Neffe AT, Lendlein A. Supramolecular Gelatin Networks Based on Inclusion Complexes. Macromol Biosci 2020; 20:e2000221. [DOI: 10.1002/mabi.202000221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Indexed: 01/30/2023]
Affiliation(s)
- Candy Löwenberg
- Institute of Biomaterial Science and Berlin‐Brandenburg Centre for Regenerative Therapies Helmholtz‐Zentrum Geesthacht Teltow 14513 Germany
| | - Giuseppe Tripodo
- Institute of Biomaterial Science and Berlin‐Brandenburg Centre for Regenerative Therapies Helmholtz‐Zentrum Geesthacht Teltow 14513 Germany
| | - Konstanze K. Julich‐Gruner
- Institute of Biomaterial Science and Berlin‐Brandenburg Centre for Regenerative Therapies Helmholtz‐Zentrum Geesthacht Teltow 14513 Germany
| | - Axel T. Neffe
- Institute of Biomaterial Science and Berlin‐Brandenburg Centre for Regenerative Therapies Helmholtz‐Zentrum Geesthacht Teltow 14513 Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin‐Brandenburg Centre for Regenerative Therapies Helmholtz‐Zentrum Geesthacht Teltow 14513 Germany
- Institute of Chemistry University of Potsdam Potsdam 14476 Germany
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27
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He Y, Chen Y, Wan X, Zhao C, Qiu P, Lin X, Zhang J, Huang Y. Preparation and Characterization of an Optimized Meniscal Extracellular Matrix Scaffold for Meniscus Transplantation. Front Bioeng Biotechnol 2020; 8:779. [PMID: 32775323 PMCID: PMC7381338 DOI: 10.3389/fbioe.2020.00779] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 06/18/2020] [Indexed: 11/24/2022] Open
Abstract
Many studies have sought to construct a substitute to partially replace irreparably damaged meniscus. Only the meniscus allograft has been used in clinical practice as a useful substitute, and there are concerns about its longevity and inherent limitations, including availability of donor tissue and possibility of disease transmission. To overcome these limitations, we developed an acellular xenograft from whole porcine meniscus. Samples were treated with 2% Triton X-100 for 10 days and 2% sodium dodecyl sulfate for 6 days. The DNA content of extracellular matrix (ECM) scaffolds was significantly decreased compared with that of normal porcine menisci (p < 0.001). Histological analysis confirmed the maintenance of ECM integrity and anisotropic architecture in the absence of nuclei. Biochemical and biomechanical assays of the scaffolds indicated the preservation of collagen (p = 0.806), glycosaminoglycan (p = 0.188), and biomechanical properties (elastic modulus and transition stress). The scaffolds possessed good biocompatibility and supported bone marrow mesenchymal stem cells (BMSCs) proliferation for 2 weeks in vitro, with excellent region-specific recellularization in vivo. The novel scaffold has potential value for application in recellularization and transplantation strategies.
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Affiliation(s)
- Yong He
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Yunbin Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China.,Department of Neurology, The First Affiliated Hospital of Wenzhou Medical College, Wenzhou, China
| | - Xinyu Wan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China.,First Clinical College, Wenzhou Medical University, Wenzhou, China
| | - Chenchen Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Pengcheng Qiu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Xianfeng Lin
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Jianfeng Zhang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Yue Huang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
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28
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Lau HK, Rattan S, Fu H, Garcia CG, Barber DM, Kiick KL, Crosby AJ. Micromechanical Properties of Microstructured Elastomeric Hydrogels. Macromol Biosci 2020; 20:e1900360. [DOI: 10.1002/mabi.201900360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Hang Kuen Lau
- Department of Materials Science and Engineering University of Delaware 201 DuPont Hall Newark DE 19716 USA
| | - Shruti Rattan
- Polymer Science and Engineering Department University of Massachusetts Amherst 120 Governors Drive Amherst MA 01003 USA
| | - Hongbo Fu
- Polymer Science and Engineering Department University of Massachusetts Amherst 120 Governors Drive Amherst MA 01003 USA
| | - Cristobal G. Garcia
- Department of Materials Science and Engineering University of Delaware 201 DuPont Hall Newark DE 19716 USA
| | - Dylan M. Barber
- Polymer Science and Engineering Department University of Massachusetts Amherst 120 Governors Drive Amherst MA 01003 USA
| | - Kristi L. Kiick
- Department of Materials Science and Engineering University of Delaware 201 DuPont Hall Newark DE 19716 USA
- Delaware Biotechnology Institute 15 Innovation Way Newark DE 19711 USA
| | - Alfred J. Crosby
- Polymer Science and Engineering Department University of Massachusetts Amherst 120 Governors Drive Amherst MA 01003 USA
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29
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Zhang P, Behl M, Balk M, Peng X, Lendlein A. Shape-Programmable Architectured Hydrogels Sensitive to Ultrasound. Macromol Rapid Commun 2020; 41:e1900658. [PMID: 32037625 DOI: 10.1002/marc.201900658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Indexed: 11/07/2022]
Abstract
On-demand motion of highly swollen polymer systems can be triggered by changes in pH, ion concentrations, or by heat. Here, shape-programmable, architectured hydrogels are introduced, which respond to ultrasonic-cavitation-based mechanical forces (CMF) by directed macroscopic movements. The concept is the implementation and sequential coupling of multiple functions (swellability in water, sensitivity to ultrasound, shape programmability, and shape-memory) in a semi-interpenetrating polymer network (s-IPN). The semi-IPN-based hydrogels are designed to function through rhodium coordination (Rh-s-IPNH). These coordination bonds act as temporary crosslinks. The porous hydrogels with coordination bonds (degree of swelling from 300 ± 10 to 680 ± 60) exhibit tensile strength σmax up to 250 ± 60 kPa. Shape fixity ratios up to 90% and shape recovery ratios up to 94% are reached. Potential applications are switches or mechanosensors.
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Affiliation(s)
- Pengfei Zhang
- Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513, Teltow, Germany.,University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany.,Tianjin University-Helmholtz-Zentrum Geesthacht Joint Laboratory for Biomaterials and Regenerative Medicine, Weijin Road 92, 300072 Tianjin (China) and Kantstr. 55, 14513, Teltow, Germany
| | - Marc Behl
- Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513, Teltow, Germany.,University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Maria Balk
- Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513, Teltow, Germany
| | - Xingzhou Peng
- Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513, Teltow, Germany.,University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany.,Tianjin University-Helmholtz-Zentrum Geesthacht Joint Laboratory for Biomaterials and Regenerative Medicine, Weijin Road 92, 300072 Tianjin (China) and Kantstr. 55, 14513, Teltow, Germany
| | - Andreas Lendlein
- Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513, Teltow, Germany.,University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany.,Tianjin University-Helmholtz-Zentrum Geesthacht Joint Laboratory for Biomaterials and Regenerative Medicine, Weijin Road 92, 300072 Tianjin (China) and Kantstr. 55, 14513, Teltow, Germany
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30
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Zhu L, Luo D, Liu Y. Effect of the nano/microscale structure of biomaterial scaffolds on bone regeneration. Int J Oral Sci 2020; 12:6. [PMID: 32024822 PMCID: PMC7002518 DOI: 10.1038/s41368-020-0073-y] [Citation(s) in RCA: 187] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 01/12/2023] Open
Abstract
Natural bone is a mineralized biological material, which serves a supportive and protective framework for the body, stores minerals for metabolism, and produces blood cells nourishing the body. Normally, bone has an innate capacity to heal from damage. However, massive bone defects due to traumatic injury, tumor resection, or congenital diseases pose a great challenge to reconstructive surgery. Scaffold-based tissue engineering (TE) is a promising strategy for bone regenerative medicine, because biomaterial scaffolds show advanced mechanical properties and a good degradation profile, as well as the feasibility of controlled release of growth and differentiation factors or immobilizing them on the material surface. Additionally, the defined structure of biomaterial scaffolds, as a kind of mechanical cue, can influence cell behaviors, modulate local microenvironment and control key features at the molecular and cellular levels. Recently, nano/micro-assisted regenerative medicine becomes a promising application of TE for the reconstruction of bone defects. For this reason, it is necessary for us to have in-depth knowledge of the development of novel nano/micro-based biomaterial scaffolds. Thus, we herein review the hierarchical structure of bone, and the potential application of nano/micro technologies to guide the design of novel biomaterial structures for bone repair and regeneration.
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Affiliation(s)
- Lisha Zhu
- Laboratory of Biomimetic Nanomaterials, 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
| | - Dan Luo
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, China
| | - Yan Liu
- Laboratory of Biomimetic Nanomaterials, 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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31
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Lendlein A, Balk M, Tarazona NA, Gould OEC. Bioperspectives for Shape-Memory Polymers as Shape Programmable, Active Materials. Biomacromolecules 2019; 20:3627-3640. [PMID: 31529957 DOI: 10.1021/acs.biomac.9b01074] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Within the natural world, organisms use information stored in their material structure to generate a physical response to a wide variety of environmental changes. The ability to program synthetic materials to intrinsically respond to environmental changes in a similar manner has the potential to revolutionize material science. By designing polymeric devices capable of responsively changing shape or behavior based on information encoded into their structure, we can create functional physical behavior, including a shape-memory and an actuation capability. Here we highlight the stimuli-responsiveness and shape-changing ability of biological materials and biopolymer-based materials, plus their potential biomedical application, providing a bioperspective on shape-memory materials. We address strategies to incorporate a shape-memory (actuation) function in polymeric materials, conceptualized in terms of its relationship with inputs (environmental stimuli) and outputs (shape change). Challenges and opportunities associated with the integration of several functions in a single material body to achieve multifunctionality are discussed. Finally, we describe how elements that sense, convert, and transmit stimuli have been used to create multisensitive materials.
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Affiliation(s)
- Andreas Lendlein
- Institute of Biomaterial Science , Helmholtz-Zentrum Geesthacht , Kantstrasse 55 , Teltow , Germany.,Institute of Chemistry , University of Potsdam , Karl-Liebknecht-Straße 24-25 , Potsdam , Germany
| | - Maria Balk
- Institute of Biomaterial Science , Helmholtz-Zentrum Geesthacht , Kantstrasse 55 , Teltow , Germany
| | - Natalia A Tarazona
- Institute of Biomaterial Science , Helmholtz-Zentrum Geesthacht , Kantstrasse 55 , Teltow , Germany
| | - Oliver E C Gould
- Institute of Biomaterial Science , Helmholtz-Zentrum Geesthacht , Kantstrasse 55 , Teltow , Germany
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32
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Patel DK, Lim KT. Biomimetic Polymer-Based Engineered Scaffolds for Improved Stem Cell Function. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2950. [PMID: 31514460 PMCID: PMC6766224 DOI: 10.3390/ma12182950] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 12/17/2022]
Abstract
Scaffolds are considered promising materials for tissue engineering applications due to their unique physiochemical properties. The high porosity and adequate mechanical properties of the scaffolds facilitate greater cell adhesion, proliferation, and differentiation. Stem cells are frequently applied in tissue engineering applications due to their excellent potential. It has been noted that cell functions are profoundly affected by the nature of the extracellular matrix (ECM). Naturally derived ECM contains the bioactive motif that also influences the immune response of the organism. The properties of polymer scaffolds mean they can resemble the native ECM and can regulate cellular responses. Various techniques such as electrospinning and 3D printing, among others, are frequently used to fabricate polymer scaffolds, and their cellular responses are different with each technique. Furthermore, enhanced cell viability, as well as the differentiation ability of stem cells on the surface of scaffolds, opens a fascinating approach to the formation of ECM-like environments for tissue engineering applications.
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Affiliation(s)
- Dinesh K Patel
- The Institute of Forest Science, Kangwon National University, Chuncheon-24341, Korea.
| | - Ki-Taek Lim
- Department of Biosystems Engineering, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon-24341, Korea.
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33
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Wang S, Yang Y, Koons GL, Mikos AG, Qiu Z, Song T, Cui F, Wang X. Tuning pore features of mineralized collagen/PCL scaffolds for cranial bone regeneration in a rat model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 106:110186. [PMID: 31753406 DOI: 10.1016/j.msec.2019.110186] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 05/05/2019] [Accepted: 09/09/2019] [Indexed: 01/08/2023]
Abstract
Porosity is indispensable for a bone tissue-engineered scaffold for facilitating endogenous cell migration and nascent bone ingrowth. In large-sized cranial bone defect repair, porous scaffolds meet great challenges to match cranial bone regeneration and provide sufficient protection with structural integrity. Therefore, the pore features of the scaffolds for cranial bone regeneration should differ from those typical porous scaffolds used in tubular bone repair and be finely tuned. In this study, a series of porous mineralized collagen/PCL scaffolds with different pore features were fabricated via freeze-drying and applied in a Sprague Dawley rat cranial bone calvarial defect model. The pore size for four groups increased from 10-45 μm to 40-130 μm. As scaffold porosity increased, the compressive strength decreased from 2.09 ± 0.12 MPa to 0.51 ± 0.04 MPa. The micro-computed tomography three-dimensional reconstruction images showed that as pore size and porosity increased, the amount of new bone formation had a maximum in group 3 (pore size: 20-100 μm, compressive strength: 1.06 ± 0.03 MPa). In addition, the histological and histomorphometric analyses showed a consistent tendency which confirmed the Micro-CT results. Meanwhile, histological findings including bony bridging, tissue response at the bone-implant interface and fibrous capsule thickness indicated that the dura mater pathway played the most important role in the regenerative process of this calvarial defect model.
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Affiliation(s)
- Shuo Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yongdong Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; Dongzhimen Hospital Affiliated Beijing University of Chinese Medicine, Beijing 100700, China
| | - Gerry L Koons
- Department of Bioengineering, Rice University, Houston, TX 77030, USA
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX 77030, USA
| | - Zhiye Qiu
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
| | - Tianxi Song
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
| | - Fuzhai Cui
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
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34
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Chen M, Zhang Y, Xie Q, Zhang W, Pan X, Gu P, Zhou H, Gao Y, Walther A, Fan X. Long-Term Bone Regeneration Enabled by a Polyhedral Oligomeric Silsesquioxane (POSS)-Enhanced Biodegradable Hydrogel. ACS Biomater Sci Eng 2019; 5:4612-4623. [DOI: 10.1021/acsbiomaterials.9b00642] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mingjiao Chen
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road No. 639, Shanghai 200011, People’s Republic of China
| | - Yuanhao Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, People’s Republic of China
| | - Qing Xie
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road No. 639, Shanghai 200011, People’s Republic of China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, People’s Republic of China
| | - Xiuwei Pan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, People’s Republic of China
| | - Ping Gu
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road No. 639, Shanghai 200011, People’s Republic of China
| | - Huifang Zhou
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road No. 639, Shanghai 200011, People’s Republic of China
| | - Yun Gao
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, People’s Republic of China
| | - Andreas Walther
- Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, Freiburg 79104, Germany
- Freiburg Materials Research Center, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 21, Freiburg 79104, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 105, Freiburg 79110, Germany
| | - Xianqun Fan
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road No. 639, Shanghai 200011, People’s Republic of China
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35
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Ou L, Lan Y, Feng Z, Feng L, Yang J, Liu Y, Bian L, Tan J, Lai R, Guo R. Functionalization of SF/HAP Scaffold with GO-PEI-miRNA inhibitor Complexes to Enhance Bone Regeneration through Activating Transcription Factor 4. Am J Cancer Res 2019; 9:4525-4541. [PMID: 31285777 PMCID: PMC6599658 DOI: 10.7150/thno.34676] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/12/2019] [Indexed: 02/07/2023] Open
Abstract
Evidence indicates that microRNAs (miRNAs) play vital roles in regulating osteogenic differentiation and bone formation. Methods: Here, we show that a polyethyleneimine (PEI)-functionalized graphene oxide (GO) complex efficiently loaded with the miR-214 inhibitor is assembled into silk fibroin/hydroxyapatite (SF/HAP) scaffolds that spatially control the release of the miR-214 inhibitor. Results: SF/HAP/GO scaffolds with nanosized GO show high mechanical strength, and their hierarchical microporous structures promote cell adhesion and growth. The SF/HAP/GO-PEI scaffolds loaded with mir-214 inhibitor (SF/HAP/GPM) were tested for their ability to enhance osteogenic differentiation by inhibiting the expression of miR-214 while inversely increasing the expression of activating transcription factor 4 (ATF4) and activating the Akt and ERK1/2 signaling pathways in mouse osteoblastic cells (MC3T3-E1) in vitro. Similarly, the scaffolds activated the osteoblastic activity of endogenous osteoblast cells to repair critical-sized bone defects in rats without the need for loading osteoblast cells. Conclusion: This technology is used to increase osteogenic differentiation and mineralized bone formation in bone defects, which helps to achieve cell-free scaffold-based miRNA-inhibitor therapy for bone tissue engineering.
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Xue Y, Wu M, Liu Z, Song J, Luo S, Li H, Li Y, Jin L, Guan B, Lin M, Chen F, Jin C, Liu D, Li Y, Zhang X. In vitro and in vivo evaluation of chitosan scaffolds combined with simvastatin-loaded nanoparticles for guided bone regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:47. [PMID: 30980130 DOI: 10.1007/s10856-019-6249-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
The objective of this study was to fabricate and characterize chitosan combined with different amounts of simvastatin-loaded nanoparticles and to investigate their potential for guided bone regeneration in vitro and in vivo. Different SIM-CSN formulations were combined into a chitosan scaffold (SIM-CSNs-S), and the morphology, simvastatin release profile, and effect on cell proliferation and differentiation were investigated. For in vivo experiments, ectopic osteogenesis and the critical-size cranial defect model in SD rats were chosen to evaluate bone regeneration potential. All three SIM-CSNs-S formulations had a porous structure and exhibited sustained simvastatin release. CSNs-S showed excellent degradation and biocompatibility characteristics. The 4 mg SIM-CSNs-S formulation stimulated higher BMSC ALP activity levels, demonstrated significantly earlier collagen enhancement, and led to faster bone regeneration than the other formulations. SIM-CSNs-S should have a significant effect on bone regeneration.
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Affiliation(s)
- Yan Xue
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Mingyao Wu
- LangFang Health Vocational College, South Siguang Road, 065001, Langfang, China
| | - Zongren Liu
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
- Department of Stomatology of Tianjin Medical University General Hospital, Binhai Hospital, No. 28, Hangu hospital road, Binhai new district, 300480, Tianjin, China
| | - Jinhua Song
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Shuyu Luo
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Hongjie Li
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Yuan Li
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Lichun Jin
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Binbin Guan
- Department of Stomatology of Tianjin Medical University General Hospital, No.154, FeiLong road, 300052, Tianjin, China
| | - Mingli Lin
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Fuyu Chen
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Chenxin Jin
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China
| | - Deping Liu
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, 100730, Beijing, China.
| | - Yanqiu Li
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China.
| | - Xu Zhang
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China.
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Tian T, Wang J, Wu S, Shao Z, Xiang T, Zhou S. A body temperature and water-induced shape memory hydrogel with excellent mechanical properties. Polym Chem 2019. [DOI: 10.1039/c9py00502a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A body temperature and water-induced shape memory hydrogel with excellent mechanical properties was prepared by crosslinking dopamine-terminated tetra-poly(ethylene glycol) with an oxidation reaction.
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Affiliation(s)
- Tian Tian
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Jiao Wang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Shanshan Wu
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Zijian Shao
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Tao Xiang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
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38
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Machatschek R, Schulz B, Lendlein A. Langmuir Monolayers as Tools to Study Biodegradable Polymer Implant Materials. Macromol Rapid Commun 2018; 40:e1800611. [PMID: 30387219 DOI: 10.1002/marc.201800611] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/24/2018] [Indexed: 11/06/2022]
Abstract
Langmuir monolayers provide a fast and elegant route to analyze the degradation behavior of biodegradable polymer materials. In contrast to bulk materials, diffusive transport of reactants and reaction products in the (partially degraded) material can be neglected at the air-water interface, allowing for the study of molecular degradation kinetics in experiments taking less than a day and in some cases just a few minutes, in contrast to experiments with bulk materials that can take years. Several aspects of the biodegradation behavior of polymer materials, such as the interaction with biomolecules and degradation products, are directly observable. Expanding the technique with surface-sensitive instrumental techniques enables evaluating the evolution of the morphology, chemical composition, and the mechanical properties of the degrading material in situ. The potential of the Langmuir monolayer degradation technique as a predictive tool for implant degradation when combined with computational methods is outlined, and related open questions and strategies to overcome these challenges are pointed out.
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Affiliation(s)
- Rainhard Machatschek
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Kantstraße 55,, 14513, Teltow, Germany
| | - Burkhard Schulz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Kantstraße 55,, 14513, Teltow, Germany.,Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25,, 14469, Potsdam, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Kantstraße 55,, 14513, Teltow, Germany.,Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25,, 14469, Potsdam, Germany
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39
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Chen W, Kretzschmann A, Tian W, Wu S. Nonlinear Supramolecular Polymers for Therapeutic Applications. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wenzhuo Chen
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions; Shanxi Key Laboratory of Macromolecular Science and Technology; School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Annika Kretzschmann
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Wei Tian
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions; Shanxi Key Laboratory of Macromolecular Science and Technology; School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Si Wu
- Hefei National Laboratory for Physical Sciences at the Microscale; CAS Key Laboratory of Soft Matter Chemistry; Anhui Key Laboratory of Optoelectronic Science and Technology; Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 China
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40
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Duru İ, Ege D. Self-Assembly of L-Arginine on Electrophoretically Deposited Hydroxyapatite Coatings. ChemistrySelect 2018. [DOI: 10.1002/slct.201801913] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- İlayda Duru
- Institute of Biomedical Engineering; Boğaziçi University; Rasathane St., Kandilli 34684, Istanbul Turkey
| | - Duygu Ege
- Institute of Biomedical Engineering; Boğaziçi University; Rasathane St., Kandilli 34684, Istanbul Turkey
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41
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Wu D, Xie X, Kadi AA, Zhang Y. Photosensitive peptide hydrogels as smart materials for applications. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.04.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Gao S, Chen M, Wang P, Li Y, Yuan Z, Guo W, Zhang Z, Zhang X, Jing X, Li X, Liu S, Sui X, Xi T, Guo Q. An electrospun fiber reinforced scaffold promotes total meniscus regeneration in rabbit meniscectomy model. Acta Biomater 2018; 73:127-140. [PMID: 29654991 DOI: 10.1016/j.actbio.2018.04.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 03/28/2018] [Accepted: 04/04/2018] [Indexed: 12/28/2022]
Abstract
Low vascularization in meniscus limits its regeneration ability after injury, and tissue engineering is the most promising method to achieve meniscus regeneration. In this study, we fabricated a kind of composite scaffold by decellularized meniscus extracellular matrix/polycaprolactone (DMECM/PCL) electrospinning fibers and porous DMECM, in which DMECM/PCL fibers were used as reinforcing component. The tensile modulus of the composite scaffold in longitudinal and crosswise directions were 8.5 ± 1.9 and 2.3 ± 0.3 MPa, respectively. Besides that, the DMECM/PCL electrospinning fibers enhanced suture resistance of the composite scaffold more than 5 times than DMECM scaffold effectively. In vitro cytocompatibility showed that the porous structure provided by DMECM component facilitated meniscus cells' proliferation. DMECM was also the main component to regulate cell behaviors, which promoted meniscus cells expressing extracellular matrix related genes such as COL I, COL II, SOX9 and AGG. Rabbits with total meniscectomy were used as animal model to evaluated the composited scaffolds performance in vivo at 3 and 6 months. Results showed that rabbits with scaffold implanting could regenerate neo-menisci in both time points. The neo-menisci had similar histology structure and biochemical content with native menisci. Although neo-menisci had inferior tensile modulus than native ones, its modulus was improved with implanting time prolonging. MRI imaging showed the signal of neo-meniscus in the body is clear, and X-ray imaging of knee joints demonstrated the implantation of scaffolds could relief joint space narrowing. Moreover, rabbits with neo-menisci had better cartilage condition in femoral condyle and tibial plateau compared than meniscectomy group. STATEMENT OF SIGNIFICANCE We fabricated the meniscus scaffold by combining porous decellularized meniscus extracellular matrix (DMECM) and DMECM/PCL electrospinning fibers together, which used the porous structure of DMECM, and the good tensile property of electrospinning fibers. We believe single material cannot satisfy increasing needs of scaffold. Therefore, we combined not only materials but also fabrication methods together to develop scaffold to make good use of each part. DMECM in electrospinning fibers also made these two components possible to be integrated through crosslinking. Compared to existing meniscus scaffold, the composite scaffold had (1) soft structure and extrusion would not happen after implantation, (2) ability to be trimmed to suitable shape during surgery, and (3) good resistance to suture.
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Affiliation(s)
- Shuang Gao
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Mingxue Chen
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Pei Wang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yan Li
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Zhiguo Yuan
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Weimin Guo
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Zengzeng Zhang
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Xueliang Zhang
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiaoguang Jing
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Xu Li
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Shuyun Liu
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiang Sui
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Tingfei Xi
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Shenzhen Institute, Peking University, Shenzhen 518057, China.
| | - Quanyi Guo
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China.
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Lau HK, Paul A, Sidhu I, Li L, Sabanayagam CR, Parekh SH, Kiick KL. Microstructured Elastomer-PEG Hydrogels via Kinetic Capture of Aqueous Liquid-Liquid Phase Separation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1701010. [PMID: 29938180 PMCID: PMC6010786 DOI: 10.1002/advs.201701010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/22/2018] [Indexed: 05/31/2023]
Abstract
Heterogeneous hydrogels with desired matrix complexity are studied for a variety of biomimetic materials. Despite the range of such microstructured materials described, few methods permit independent control over microstructure and microscale mechanics by precisely controlled, single-step processing methods. Here, a phototriggered crosslinking methodology that traps microstructures in liquid-liquid phase-separated solutions of a highly elastomeric resilin-like polypeptide (RLP) and poly(ethylene glycol) (PEG) is reported. RLP-rich domains of various diameters can be trapped in a PEG continuous phase, with the kinetics of domain maturation dependent on the degree of acrylation. The chemical composition of both hydrogel phases over time is assessed via in situ hyperspectral coherent Raman microscopy, with equilibrium concentrations consistent with the compositions derived from NMR-measured coexistence curves. Atomic force microscopy reveals that the local mechanical properties of the two phases evolve over time, even as the bulk modulus of the material remains constant, showing that the strategy permits control of mechanical properties on micrometer length scales, of relevance in generating mechanically robust materials for a range of applications. As one example, the successful encapsulation, localization, and survival of primary cells are demonstrated and suggest the potential application of phase-separated RLP-PEG hydrogels in regenerative medicine applications.
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Affiliation(s)
- Hang Kuen Lau
- Department of Materials Science and EngineeringUniversity of Delaware201 DuPont HallNewarkDE19716USA
| | - Alexandra Paul
- Department of Biology and Biological EngineeringChalmers University of TechnologyGothenburgSE‐412 96Sweden
- Department of Molecular SpectroscopyMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Ishnoor Sidhu
- Department of Biological SciencesUniversity of DelawareNewarkDE19716USA
| | - Linqing Li
- Department of Materials Science and EngineeringUniversity of Delaware201 DuPont HallNewarkDE19716USA
| | | | - Sapun H. Parekh
- Department of Molecular SpectroscopyMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Kristi L. Kiick
- Department of Materials Science and EngineeringUniversity of Delaware201 DuPont HallNewarkDE19716USA
- Delaware Biotechnology Institute15 Innovation WayNewarkDE19711USA
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Zou J, Wang W, Neffe AT, Xu X, Li Z, Deng Z, Sun X, Ma N, Lendlein A. Adipogenic differentiation of human adipose derived mesenchymal stem cells in 3D architectured gelatin based hydrogels (ArcGel). Clin Hemorheol Microcirc 2018; 67:297-307. [PMID: 28885199 DOI: 10.3233/ch-179210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polymeric matrices mimicking multiple functions of the ECM are expected to enable a material induced regeneration of tissues. Here, we investigated the adipogenic differentiation of human adipose derived mesenchymal stem cells (hADSCs) in a 3D architectured gelatin based hydrogel (ArcGel) prepared from gelatin and L-lysine diisocyanate ethyl ester (LDI) in an one-step process, in which the formation of an open porous morphology and the chemical network formation were integrated. The ArcGel was designed to support adipose tissue regeneration with its 3D porous structure, high cell biocompatibility, and mechanical properties compatible with human subcutaneous adipose tissue. The ArcGel could support initial cell adhesion and survival of hADSCs. Under static culture condition, the cells could migrate into the inner part of the scaffold with a depth of 840±120 μm after 4 days, and distributed in the whole scaffold (2 mm in thickness) within 14 days. The cells proliferated in the scaffold and the fold increase of cell number after 7 days of culture was 2.55±0.08. The apoptotic rate of hADSCs in the scaffold was similar to that of cells maintained on tissue culture plates. When cultured in adipogenic induction medium, the hADSCs in the scaffold differentiated into adipocytes with a high efficiency (93±1%). Conclusively, this gelatin based 3D scaffold presented high cell compatibility for hADSC cultivation and differentiation, which could serve as a potential implant material in clinical applications for adipose tissue reparation and regeneration.
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Affiliation(s)
- Jie Zou
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany
| | - Weiwei Wang
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Axel T Neffe
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Helmholtz Virtual Institute "Multifunctional Biomaterials in Medicine", Teltow, Germany
| | - Xun Xu
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany
| | - Zhengdong Li
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany
| | - Zijun Deng
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany
| | - Xianlei Sun
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Biochemistry and Biology, Universität Potsdam, Potsdam, Germany
| | - Nan Ma
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany.,Helmholtz Virtual Institute "Multifunctional Biomaterials in Medicine", Teltow, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany.,Helmholtz Virtual Institute "Multifunctional Biomaterials in Medicine", Teltow, Germany.,Institute of Biochemistry and Biology, Universität Potsdam, Potsdam, Germany
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45
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Interplay between stiffness and degradation of architectured gelatin hydrogels leads to differential modulation of chondrogenesis in vitro and in vivo. Acta Biomater 2018; 69:83-94. [PMID: 29378326 DOI: 10.1016/j.actbio.2018.01.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/15/2018] [Accepted: 01/17/2018] [Indexed: 02/06/2023]
Abstract
The limited capacity of cartilage to heal large lesions through endogenous mechanisms has led to extensive effort to develop materials to facilitate chondrogenesis. Although physical-chemical properties of biomaterials have been shown to impact in vitro chondrogenesis, whether these findings are translatable in vivo is subject of debate. Herein, architectured 3D hydrogel scaffolds (ArcGel) (produced by crosslinking gelatin with ethyl lysine diisocyanate (LDI)) were used as a model system to investigate the interplay between scaffold mechanical properties and degradation on matrix deposition by human articular chondrocytes (HAC) from healthy donors in vitro and in vivo. Using ArcGel scaffolds of different tensile and shear modulus, and degradation behavior; in this study, we compared the fate of ex vivo engineered ArcGels-chondrocytes constructs, i.e. the traditional tissue engineering approach, with thede novoformation of cartilaginous tissue in HAC laden ArcGels in an ectopic nude mouse model. While the softer and fast degrading ArcGel (LNCO3) was more efficient at promoting chondrogenic differentiation in vitro, upon ectopic implantation, the stiffer and slow degrading ArcGel (LNCO8) was superior in maintaining chondrogenic phenotype in HAC and retention of cartilaginous matrix. Furthermore, surprisingly the de novo formation of cartilage tissue was promoted only in LNCO8. Since HAC cultured for only three days in the LNCO8 environment showed upregulation of hypoxia-associated genes, this suggests a potential role for hypoxia in the observed in vivo outcomes. In summary, this study sheds light on how immediate environment (in vivo versus in vitro) can significantly impact the outcomes of cell-laden biomaterials. STATEMENT OF SIGNIFICANCE In this study, 3D architectured hydrogels (ArcGels) with different mechanical and biodegradation properties were investigated for their potential to promote formation of cartilaginous matrix by human articular chondrocytes in vitro and in vivo. Two paradigms were explored (i) ex vivo engineering followed by in vivo implantation in ectopic site of nude mice and (ii) short in vitro culture (3 days) followed by implantation to induce de novo cartilage formation. Softer and fast degrading ArcGel were better at promoting chondrogenesis in vitro, while stiffer and slow degrading ArcGel were strikingly superior in both maintaining chondrogenesis in vivo and inducing de novo formation of cartilage. Our findings highlight the importance of the interplay between scaffold mechanics and degradation in chondrogenesis.
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47
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Han Y, Hu J, Jiang L. Collagen skin, a water-sensitive shape memory material. J Mater Chem B 2018; 6:5144-5152. [DOI: 10.1039/c8tb01346b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The water sensitive shape memory ability of collagen skin and its mechanism in terms of morphology and structures were revealed.
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Affiliation(s)
- Yanting Han
- Institute of Textiles and Clothing
- The Hong Kong Polytechnic University
- China
| | - Jinlian Hu
- Institute of Textiles and Clothing
- The Hong Kong Polytechnic University
- China
| | - Lei Jiang
- Laboratory of Bio-inspired Smart Interface Science
- Technical Institute of Physics and Chemistry and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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48
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Flégeau K, Pace R, Gautier H, Rethore G, Guicheux J, Le Visage C, Weiss P. Toward the development of biomimetic injectable and macroporous biohydrogels for regenerative medicine. Adv Colloid Interface Sci 2017; 247:589-609. [PMID: 28754381 DOI: 10.1016/j.cis.2017.07.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 07/13/2017] [Accepted: 07/13/2017] [Indexed: 01/21/2023]
Abstract
Repairing or replacing damaged human tissues has been the ambitious goal of regenerative medicine for over 25years. One promising approach is the use of hydrated three-dimensional scaffolds, known as hydrogels, which have had good results repairing tissues in pre-clinical trials. Benefiting from breakthrough advances in the field of biology, and more particularly regarding cell/matrix interactions, these hydrogels are now designed to recapitulate some of the fundamental cues of native environments to drive the local tissue regeneration. We highlight the key parameters that are required for the development of smart and biomimetic hydrogels. We also review the wide variety of polymers, crosslinking methods, and manufacturing processes that have been developed over the years. Of particular interest is the emergence of supramolecular chemistries, allowing for the development of highly functional and reversible biohydrogels. Moreover, advances in computer assisted design and three-dimensional printing have revolutionized the production of macroporous hydrogels and allowed for more complex designs than ever before with the opportunity to develop fully reconstituted organs. Today, the field of biohydrogels for regenerative medicine is a prolific area of research with applications for most bodily tissues. On top of these applications, injectable hydrogels and macroporous hydrogels (foams) were found to be the most successful. While commonly associated with cells or biologics as drug delivery systems to increase therapeutic outcomes, they are steadily being used in the emerging fields of organs-on-chip and hydrogel-assisted cell therapy. To highlight these advances, we review some of the recent developments that have been achieved for the regeneration of tissues, focusing on the articular cartilage, bone, cardiac, and neural tissues. These biohydrogels are associated with improved cartilage and bone defects regeneration, reduced left ventricular dilation upon myocardial infarction and display promising results repairing neural lesions. Combining the benefits from each of these areas reviewed above, we envision that an injectable biohydrogel foam loaded with either stem cells or their secretome is the most promising hydrogel solution to trigger tissue regeneration. A paradigm shift is occurring where the combined efforts of fundamental and applied sciences head toward the development of hydrogels restoring tissue functions, serving as drug screening platforms or recreating complex organs.
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Duan B, Shou K, Su X, Niu Y, Zheng G, Huang Y, Yu A, Zhang Y, Xia H, Zhang L. Hierarchical Microspheres Constructed from Chitin Nanofibers Penetrated Hydroxyapatite Crystals for Bone Regeneration. Biomacromolecules 2017; 18:2080-2089. [PMID: 28618219 DOI: 10.1021/acs.biomac.7b00408] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chitin exists abundantly in crab and shrimp shells as the template of the minerals, which inspired us to mineralize it for fabricating bone grafting materials. In the present work, chitin nanofibrous microspheres were used as the matrix for in situ synthesis of hydroxyapatite (HA) crystals including microflakes, submicron-needles, and submicron-spheres, which were penetrated by long chitin nanofibers, leading to the hierarchical structure. The shape and size of the HA crystals could be controlled by changing the HA synthesis process. The tight interface adhesion between chitin and HA through the noncovanlent bonds occurred in the composite microspheres, and HAs were homogeneously dispersed and bounded to the chitin nanofibers. In our findings, the inherent biocompatibilities of the both chitin and HA contributed the bone cell adhesion and osteoconduction. Moreover, the chitin microsphere with submicron-needle and submicron-sphere HA crystals remarkably promoted in vitro cell adhesion and in vivo bone healing. It was demonstrated that rabbits with 1.5 cm radius defect were almost cured completely within three months in a growth factor- and cell-free state, as a result of the unique surface microstructure and biocompatibilities of the composite microspheres. The microsphere scaffold displayed excellent biofunctions and an appropriate biodegradability. This work opened up a new avenue to construct natural polymer-based organic-inorganic hybrid microspheres for bone regeneration.
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Affiliation(s)
- Bo Duan
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Kangquan Shou
- Zhongnan Hospital, Wuhan University , Wuhan 430072, China
| | - Xiaojuan Su
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Yahui Niu
- Zhongnan Hospital, Wuhan University , Wuhan 430072, China
| | - Guan Zheng
- Department of Orthopedics, General Hospital of Guangzhou Military Area Command of Chinese PLA , Guangzhou 510010, China
| | - Yao Huang
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Aixi Yu
- Zhongnan Hospital, Wuhan University , Wuhan 430072, China
| | - Yu Zhang
- Department of Orthopedics, General Hospital of Guangzhou Military Area Command of Chinese PLA , Guangzhou 510010, China
| | - Hong Xia
- Department of Orthopedics, General Hospital of Guangzhou Military Area Command of Chinese PLA , Guangzhou 510010, China
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
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50
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Löwenberg C, Balk M, Wischke C, Behl M, Lendlein A. Shape-Memory Hydrogels: Evolution of Structural Principles To Enable Shape Switching of Hydrophilic Polymer Networks. Acc Chem Res 2017; 50:723-732. [PMID: 28199083 DOI: 10.1021/acs.accounts.6b00584] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The ability of hydrophilic chain segments in polymer networks to strongly interact with water allows the volumetric expansion of the material and formation of a hydrogel. When polymer chain segments undergo reversible hydration depending on environmental conditions, smart hydrogels can be realized, which are able to shrink/swell and thus alter their volume on demand. In contrast, implementing the capacity of hydrogels to switch their shape rather than volume demands more sophisticated chemical approaches and structural concepts. In this Account, the principles of hydrogel network design, incorporation of molecular switches, and hydrogel microstructures are summarized that enable a spatially directed actuation of hydrogels by a shape-memory effect (SME) without major volume alteration. The SME involves an elastic deformation (programming) of samples, which are temporarily fixed by reversible covalent or physical cross-links resulting in a temporary shape. The material can reverse to the original shape when these molecular switches are affected by application of a suitable stimulus. Hydrophobic shape-memory polymers (SMPs), which are established with complex functions including multiple or reversible shape-switching, may provide inspiration for the molecular architecture of shape-memory hydrogels (SMHs), but cannot be identically copied in the world of hydrophilic soft materials. For instance, fixation of the temporary shape requires cross-links to be formed also in an aqueous environment, which may not be realized, for example, by crystalline domains from the hydrophilic main chains as these may dissolve in presence of water. Accordingly, dual-shape hydrogels have evolved, where, for example, hydrophobic crystallizable side chains have been linked into hydrophilic polymer networks to act as temperature-sensitive temporary cross-links. By incorporating a second type of such side chains, triple-shape hydrogels can be realized. Considering the typically given light permeability of hydrogels and the fully hydrated state with easy permeation by small molecules, other types of stimuli like light, pH, or ions can be employed that may not be easily used in hydrophobic SMPs. In some cases, those molecular switches can respond to more than one stimulus, thus increasing the number of opportunities to induce actuation of these synthetic hydrogels. Beyond this, biopolymer-based hydrogels can be equipped with a shape switching function when facilitating, for example, triple helix formation in proteins or ionic interactions in polysaccharides. Eventually, microstructured SMHs such as hybrid or porous structures can combine the shape-switching function with an improved performance by helping to overcome frequent shortcomings of hydrogels such as low mechanical strength or volume change upon temporary cross-link cleavage. Specifically, shape switching without major volume alteration is possible in porous SMHs by decoupling small volume changes of pore walls on the microscale and the macroscopic sample size. Furthermore, oligomeric rather than short aliphatic side chains as molecular switches allow stabilization of the sample volumes. Based on those structural principles and switching functionalities, SMHs have already entered into applications as soft actuators and are considered, for example, for cell manipulation in biomedicine. In the context of those applications, switching kinetics, switching forces, and reversibility of switching are aspects to be further explored.
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Affiliation(s)
- Candy Löwenberg
- Institute
of Biomaterial Science and Berlin-Brandenburg Center for Regenerative
Therapies, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | - Maria Balk
- Institute
of Biomaterial Science and Berlin-Brandenburg Center for Regenerative
Therapies, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
- Helmholtz Virtual Institute “Multifunctional Biomaterials for Medicine”, Kanststr. 55, 14513 Teltow, Germany
| | - Christian Wischke
- Institute
of Biomaterial Science and Berlin-Brandenburg Center for Regenerative
Therapies, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
- Helmholtz Virtual Institute “Multifunctional Biomaterials for Medicine”, Kanststr. 55, 14513 Teltow, Germany
| | - Marc Behl
- Institute
of Biomaterial Science and Berlin-Brandenburg Center for Regenerative
Therapies, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | - Andreas Lendlein
- Institute
of Biomaterial Science and Berlin-Brandenburg Center for Regenerative
Therapies, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
- Helmholtz Virtual Institute “Multifunctional Biomaterials for Medicine”, Kanststr. 55, 14513 Teltow, Germany
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