1
|
Wu CY, Chou LW, Huang SW, Liao WL, Chang SM, Lee HC, Chiu CD, Tang CH, Hsieh CL. Effects of Fu's Subcutaneous Needling on Postoperative Pain in Patients Receiving Surgery for Degenerative Lumbar Spinal Disorders: A Single-Blind, Randomized Controlled Trial. J Pain Res 2024; 17:2325-2339. [PMID: 38974828 PMCID: PMC11227350 DOI: 10.2147/jpr.s465417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024] Open
Abstract
Background Fu's subcutaneous needling (FSN) is a novel acupuncture technique for pain treatment. This study investigated the effects of postsurgical FSN on postoperative pain in patients receiving surgery for degenerative spinal disorders. Methods This single-center, single-blind, randomized-controlled study involved patients undergoing surgery for degenerative spinal disorders. Participants were randomized into either an FSN group or a control group that received sham FSN. The primary outcomes were scores on the Brief Pain Inventory Taiwan version (BPI-T) and Oswestry Disability Index before and at 1, 24, and 48 hours after surgery. Secondary outcomes were muscle hardness, pethidine use, and inflammatory biomarker presence. Results Initially, 51 patients met the inclusion criteria and were allocated (26 in the FSN group and 25 in the control group). Two patients were lost to follow-up, and finally, 49 patients (25 in the FSN group and 24 in the control group) who completed the study were analyzed. The FSN group had significantly lower pain intensity measured on the BPI-T compared with the control group at 1, 24, 48, and 72 hours after surgical treatment (all p < 0.001). Additionally, pain interference as measured on the BPI-T was lower in the FSN group than in the control group 1 hour (p = 0.001), 24 hours (p = 0.018), 48 hours (p = 0.001), and 72 hours (p = 0.017) after surgical treatment. Finally, the FSN group exhibited less muscle hardness in the latissimus dorsi and gluteus maximus 24, 48, and 72 hours (all p < 0.05) after surgery compared with the control group; patients in the FSN group also exhibited less muscle hardness in the L3 paraspinal muscle 48 hours (p = 0.001) and 72 hours (p < 0.001) after surgery compared with the control group. There were no significant differences in serum CRP, IL-1β, IL-2, IL-6, and TNF-α levels between the FSN and control groups at 24 hours, 72 hours, and 1-month post-surgery (all p > 0.05). Conclusion FSN treatment can reduce postoperative pain in patients receiving surgery for degenerative spinal disorders. However, larger sample sizes and multicenter clinical trials are required to verify these findings.
Collapse
Affiliation(s)
- Chih-Ying Wu
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
- Department of Neurosurgery, China Medical University Hsinchu Hospital, China Medical University, Hsinchu, Taiwan
- Department of Neurosurgery, China Medical University Hospital, Taichung, Taiwan
| | - Li-Wei Chou
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taiwan
- Department of Physical Medicine and Rehabilitation, Asia University Hospital, Asia University, Taichung, Taiwan
| | - Shih-Wei Huang
- Department of Traditional Chinese Medicine, China Medical University Hsinchu Hospital, China Medical University, Hsinchu, Taiwan
| | - Wen-Ling Liao
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
- Center for Personalized Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shiaw-Meng Chang
- Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan
| | - Han-Chung Lee
- Neuroscience center, Everan Hospital, Taichung, Taiwan
| | - Cheng-Di Chiu
- Department of Neurosurgery, China Medical University Hospital, Taichung, Taiwan
- Spine Center, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
- Department of Medical Laboratory Science and Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hsinchu Hospital, Hsinchu, Taiwan
| | - Ching-Liang Hsieh
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Acupuncture Science, China Medical University, Taichung, Taiwan
| |
Collapse
|
2
|
Bjorgvinsdottir O, Ferguson SJ, Snorradottir BS, Gudjonsson T, Wuertz-Kozak K. The influence of physical and spatial substrate characteristics on endothelial cells. Mater Today Bio 2024; 26:101060. [PMID: 38711934 PMCID: PMC11070711 DOI: 10.1016/j.mtbio.2024.101060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/10/2024] [Accepted: 04/13/2024] [Indexed: 05/08/2024] Open
Abstract
Cardiovascular diseases are a main cause of death worldwide, leading to a growing demand for medical devices to treat this patient group. Central to the engineering of such devices is a good understanding of the biology and physics of cell-surface interactions. In existing blood-contacting devices, such as vascular grafts, the interaction between blood, cells, and material is one of the main limiting factors for their long-term durability. An improved understanding of the material's chemical- and physical properties as well as its structure all play a role in how endothelial cells interact with the material surface. This review provides an overview of how different surface structures influence endothelial cell responses and what is currently known about the underlying mechanisms that guide this behavior. The structures reviewed include decellularized matrices, electrospun fibers, pillars, pits, and grated surfaces.
Collapse
Affiliation(s)
- Oddny Bjorgvinsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland
| | - Stephen J. Ferguson
- Institute for Biomechanics, ETH Zurich, Gloriastrasse 37 / 39, 8092, Zurich, Switzerland
| | | | - Thorarinn Gudjonsson
- Faculty of Medicine, University of Iceland, Vatnsmyrarvegur 16, 101 Reykjavik, Iceland
| | - Karin Wuertz-Kozak
- Department of Biomedical Engineering, Rochester Institute of Technology (RIT), 160 Lomb Memorial Drive Bldg. 73, Rochester, NY, 14623, USA
| |
Collapse
|
3
|
Park SM, Yoon DK. Evaporation-induced self-assembly of liquid crystal biopolymers. MATERIALS HORIZONS 2024; 11:1843-1866. [PMID: 38375871 DOI: 10.1039/d3mh01585h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Evaporation-induced self-assembly (EISA) is a process that has gained significant attention in recent years due to its fundamental science and potential applications in materials science and nanotechnology. This technique involves controlled drying of a solution or dispersion of materials, forming structures with specific shapes and sizes. In particular, liquid crystal (LC) biopolymers have emerged as promising candidates for EISA due to their highly ordered structures and biocompatible properties after deposition. This review provides an overview of recent progress in the EISA of LC biopolymers, including DNA, nanocellulose, viruses, and other biopolymers. The underlying self-assembly mechanisms, the effects of different processing conditions, and the potential applications of the resulting structures are discussed.
Collapse
Affiliation(s)
- Soon Mo Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
- Department of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Dong Ki Yoon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| |
Collapse
|
4
|
Peng H, Qiao J, Wang G, Shi W, Xia F, Qiao R, Dong B. A collagen-rich arch in the urochordate notochord coordinates cell shaping and multi-tissue elongation. Curr Biol 2023; 33:5390-5403.e3. [PMID: 37995694 DOI: 10.1016/j.cub.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/25/2023]
Abstract
Cell and tissue reshaping is crucial for coordinating three-dimensional pattern formation, in which the size and shape of the cells must be accurately regulated via signal transport and communication among tissues. However, the identity of signaling and transportation mechanisms in this process remains elusive. In our study, we identified an extracellular matrix (ECM) structure with a vertebra-like shape surrounding the central notochord tissue in the larval tail of the urochordate Ciona. Additionally, we verified that the ECM structure was formed de novo, mainly from collagens secreted by notochord cells. Fluorescence recovery after photobleaching and simulation results revealed that this structure was formed via diffusional collagen flow from a notochord that was restricted and molded in the spaces among tail tissues. We revealed that the collagen structure was essential for notochord cell arrangement and elongation. Furthermore, we observed that the central notochord connects with the epidermis through this ECM structure. The disruption of this structure by collagen knockdown and loss-of-collagen function caused the failure of notochord elongation. More importantly, the epidermis could not elongate proportionally with notochord, indicating that the collagen-rich structure serves as a scaffold to coordinate the concurrent elongation of the tail tissues. These findings provide insights into how the central tissue forms and molds its surrounding ECM structure, by not only regulating its own morphogenesis but also functioning as a scaffold for signal transmission to orchestrate the coordinated morphologic reshaping of the surrounding tissues.
Collapse
Affiliation(s)
- Hongzhe Peng
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jinghan Qiao
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Guilin Wang
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Wenjie Shi
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Fan Xia
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Runyu Qiao
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Bo Dong
- Fang Zongxi Center, MoE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Laoshan Laboratory, Qingdao 266237, China; MoE Key Laboratory of Evolution & Marine Biodiversity, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
| |
Collapse
|
5
|
Zhang Z, Yang X, Zhao Y, Ye F, Shang L. Liquid Crystal Materials for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300220. [PMID: 37235719 DOI: 10.1002/adma.202300220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 04/04/2023] [Indexed: 05/28/2023]
Abstract
Liquid crystal is a state of matter being intermediate between solid and liquid. Liquid crystal materials exhibit both orientational order and fluidity. While liquid crystals have long been highly recognized in the display industry, in recent decades, liquid crystals provide new opportunities into the cross-field of material science and biomedicine due to their biocompatibility, multifunctionality, and responsiveness. In this review, the latest achievements of liquid crystal materials applied in biomedical fields are summarized. The start is made by introducing the basic concepts of liquid crystals, and then shifting to the components of liquid crystals as well as functional materials derived therefrom. After that, the ongoing and foreseeable applications of liquid crystal materials in the biomedical field with emphasis put on several cutting-edge aspects, including drug delivery, bioimaging, tissue engineering, implantable devices, biosensing, and wearable devices are discussed. It is hoped that this review will stimulate ingenious ideas for the future generation of liquid crystal-based drug development, artificial implants, disease diagnosis, health status monitoring, and beyond.
Collapse
Affiliation(s)
- Zhuohao Zhang
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Xinyuan Yang
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Yuanjin Zhao
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering Southeast University, Nanjing, 210096, China
| | - Fangfu Ye
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, China
| | - Luoran Shang
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering Southeast University, Nanjing, 210096, China
| |
Collapse
|
6
|
Li L, Liu K, Chen J, Wen W, Li H, Li L, Ding S, Liu M, Zhou C, Luo B. Bone ECM-inspired biomineralization chitin whisker liquid crystal hydrogels for bone regeneration. Int J Biol Macromol 2023; 231:123335. [PMID: 36690237 DOI: 10.1016/j.ijbiomac.2023.123335] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/04/2023] [Accepted: 01/15/2023] [Indexed: 01/22/2023]
Abstract
As a particular cell niche, natural bone extracellular matrix (ECM) is an organic-inorganic composite material formed by mineralization of liquid crystal (LC) collagen fiber network. However, designing bone repair materials that highly imitate the LC characteristic and composite components of natural bone ECM is a great challenge. Here, we report a novel kind of bone ECM-inspired biomineralization chitin whisker LC hydrogels. First, photocurable chitin whisker LC hydrogels with bone ECM-like chiral nematic LC state and viscoelasticity are created. Next, biomineralization, guided by LC hydrogels, is carried out to truly mimic the mineralization process of natural bone, so as to obtain the organic-inorganic composite materials with bone ECM-like microenvironment. The chitin whisker LC hydrogels exhibit superior biomineralization, protein adsorption and osteogenesis ability, more importantly, LC hydrogel with negatively charged -COOH groups is more conducive to biomineralization and shows more desirable osteogenic activity than that with positively charged -NH2 groups. Notably, compared with the pristine LC hydrogels, the biomineralization LC hydrogels display more favorable osteogenesis ability due to their bone ECM-like LC texture and bone-like hydroxyapatite. This study opens an avenue toward the design of bone ECM-inspired biomineralization chitin whisker LC hydrogels for bone regeneration.
Collapse
Affiliation(s)
- Lin Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Jingsheng Chen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Wei Wen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Hong Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Lihua Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Shan Ding
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.
| |
Collapse
|
7
|
Li Q, Wang Y, Zhang G, Su R, Qi W. Biomimetic mineralization based on self-assembling peptides. Chem Soc Rev 2023; 52:1549-1590. [PMID: 36602188 DOI: 10.1039/d2cs00725h] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biomimetic science has attracted great interest in the fields of chemistry, biology, materials science, and energy. Biomimetic mineralization is the process of synthesizing inorganic minerals under the control of organic molecules or biomolecules under mild conditions. Peptides are the motifs that constitute proteins, and can self-assemble into various hierarchical structures and show a high affinity for inorganic substances. Therefore, peptides can be used as building blocks for the synthesis of functional biomimetic materials. With the participation of peptides, the morphology, size, and composition of mineralized materials can be controlled precisely. Peptides not only provide well-defined templates for the nucleation and growth of inorganic nanomaterials but also have the potential to confer inorganic nanomaterials with high catalytic efficiency, selectivity, and biotherapeutic functions. In this review, we systematically summarize research progress in the formation mechanism, nanostructural manipulation, and applications of peptide-templated mineralized materials. These can further inspire researchers to design structurally complex and functionalized biomimetic materials with great promising applications.
Collapse
Affiliation(s)
- Qing Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
| | - Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Gong Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou Industrial Park, Suzhou 215123, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| |
Collapse
|
8
|
Liu K, Li L, Chen J, Li Y, Wen W, Lu L, Li L, Li H, Liu M, Zhou C, Luo B. Bone ECM-like 3D Printing Scaffold with Liquid Crystalline and Viscoelastic Microenvironment for Bone Regeneration. ACS NANO 2022; 16:21020-21035. [PMID: 36469414 DOI: 10.1021/acsnano.2c08699] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Implanting a 3D printing scaffold is an effective therapeutic strategy for personalized bone repair. As the key factor for the success of bone tissue engineering, the scaffold should provide an appropriate bone regeneration microenvironment and excellent mechanical properties. In fact, the most ideal osteogenic microenvironment is undoubtedly provided by natural bone extracellular matrix (ECM), which exhibits liquid crystalline and viscoelastic characteristics. However, mimicking a bone ECM-like microenvironment in a 3D structure with outstanding mechanical properties is a huge challenge. Herein, we develop a facile approach to fabricate a bionic scaffold perfectly combining bone ECM-like microenvironment and robust mechanical properties. Creatively, 3D printing a poly(l-lactide) (PLLA) scaffold was effectively strengthened via layer-by-layer electrostatic self-assembly of chitin whiskers. More importantly, a kind of chitin whisker/chitosan composite hydrogel with bone ECM-like liquid crystalline state and viscoelasticity was infused into the robust PLLA scaffold to build the bone ECM-like microenvironment in 3D structure, thus highly promoting bone regeneration. Moreover, deferoxamine, an angiogenic factor, was encapsulated in the composite hydrogel and sustainably released, playing a long-term role in angiogenesis and thereby further promoting osteogenesis. This scaffold with bone ECM-like microenvironment and excellent mechanical properties can be considered as an effective implantation for bone repair.
Collapse
Affiliation(s)
- Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Lin Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Jingsheng Chen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Yizhi Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Wei Wen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Lu Lu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Lihua Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Hong Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| |
Collapse
|
9
|
Carr BP, Chen Z, Chung JHY, Wallace GG. Collagen Alignment via Electro-Compaction for Biofabrication Applications: A Review. Polymers (Basel) 2022; 14:4270. [PMID: 36297848 PMCID: PMC9609630 DOI: 10.3390/polym14204270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 11/24/2022] Open
Abstract
As the most prevalent structural protein in the extracellular matrix, collagen has been extensively investigated for biofabrication-based applications. However, its utilisation has been impeded due to a lack of sufficient mechanical toughness and the inability of the scaffold to mimic complex natural tissues. The anisotropic alignment of collagen fibres has been proven to be an effective method to enhance its overall mechanical properties and produce biomimetic scaffolds. This review introduces the complicated scenario of collagen structure, fibril arrangement, type, function, and in addition, distribution within the body for the enhancement of collagen-based scaffolds. We describe and compare existing approaches for the alignment of collagen with a sharper focus on electro-compaction. Additionally, various effective processes to further enhance electro-compacted collagen, such as crosslinking, the addition of filler materials, and post-alignment fabrication techniques, are discussed. Finally, current challenges and future directions for the electro-compaction of collagen are presented, providing guidance for the further development of collagenous scaffolds for bioengineering and nanotechnology.
Collapse
Affiliation(s)
| | | | - Johnson H. Y. Chung
- Australian Research Council Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Gordon G. Wallace
- Australian Research Council Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
| |
Collapse
|
10
|
Tang S, Liu K, Chen J, Li Y, Liu M, Lu L, Zhou C, Luo B. Dual-Cross-linked Liquid Crystal Hydrogels with Controllable Viscoelasticity for Regulating Cell Behaviors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21966-21977. [PMID: 35503918 DOI: 10.1021/acsami.2c02689] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The liquid crystal properties and viscoelasticity of the natural bone extracellular matrix (ECM) play a decisive role in guiding cell behavior, conducting cell signals, and regulating mineralization. Here, we develop a facile approach for preparing a novel polysaccharide hydrogel with liquid crystal properties and viscoelasticity similar to those of natural bone ECM. First, a series of chitin whisker/chitosan (CHW/CS) hydrogels were prepared by chemical cross-linking with genipin, in which CHW can self-assemble to form cholesteric liquid crystals under ultrasonic treatment and CS chains can enter into the gaps between the helical layers of the CHW cholesteric liquid crystal phase to endow morphological stability and good mechanical properties. Subsequently, the obtained chemically cross-linked liquid crystal hydrogels were immersed into the desired concentration of the NaCl solution to form physical cross-linking. Due to the Hofmeister effect, the as-prepared dual-cross-linked liquid crystal hydrogels showed an enhanced modulus, viscoelasticity similar to that of natural ECM with relatively fast stress relaxation behavior, and fold surface morphology. Compared to both CHW/CS hydrogels without liquid crystal properties and CHW/CS liquid crystal hydrogels without further physical cross-linking, the dual-cross-linked CHW/CS liquid crystal hydrogels are more favorable for the adhesion, proliferation, and osteogenic differentiation of bone marrow mesenchymal stem cells. This approach could inspire the design of hydrogels mimicking the liquid crystal properties and viscoelasticity of natural bone ECM for bone repair.
Collapse
Affiliation(s)
- Shengyue Tang
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Jingsheng Chen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Yizhi Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Lu Lu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| |
Collapse
|
11
|
Spencer RKW, Ha BY, Saeidi N. Interplay between nematic and cholesteric interactions in self-consistent field theory. Phys Rev E 2022; 105:054501. [PMID: 35706232 DOI: 10.1103/physreve.105.054501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 03/29/2022] [Indexed: 06/15/2023]
Abstract
Chirality is a design feature of a number of biomolecules (e.g., collagen). In these molecules, cholesteric (chiral-nematic) behavior emerges from a combination of the tendency for the biopolymers to align (nematic interactions) and for the alignment direction to change with position, rotating around an axis normal to the alignment direction. This paper presents self-consistent field theory (SCFT) of chiral-nematic polymers, which takes into account polymer flexibility and the orientational degrees of freedom of polymer segments. Using the resulting SCFT, we construct a phase diagram showing regions of stability for isotropic, nematic, and cholesteric phases. Furthermore, we find that nematic interactions can stabilize the cholesteric phase, pushing the isotropic-cholesteric phase transition to lower cholesteric interaction strength, until the isotropic-nematic-cholesteric triple point is reached.
Collapse
Affiliation(s)
- Russell K W Spencer
- Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Bae-Yeun Ha
- Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Nima Saeidi
- Department of Surgery, The Center for Engineering in Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
| |
Collapse
|
12
|
Efficacy of Fu's Subcutaneous Needling on Myofascial Trigger Points for Lateral Epicondylalgia: A Randomized Control Trial. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:5951327. [PMID: 35321501 PMCID: PMC8938053 DOI: 10.1155/2022/5951327] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/30/2021] [Accepted: 02/12/2022] [Indexed: 11/17/2022]
Abstract
Lateral epicondylalgia (LE), a common overuse syndrome of the extensor muscle and tendons on the lateral epicondyle, causes persistent severe musculoskeletal pain on the outer part of the elbow. Fu's subcutaneous needling (FSN), a newly invented subtype of acupuncture and dry needling, is a new trend and potential treatment of LE by targeting the myofascial trigger points (MTrPs). However, no scientific evidence is available to support this method. This study aims to evaluate the distal FSN treatment on the LE by measuring pain-related scales, such as visual analog scale (VAS), pressure pain threshold (PPT), muscle tissue hardness (TH), pain-free grip (PFG), and the functional outcome by a patient-rated tennis elbow evaluation (PRTEE) questionnaire study. A total of 60 LE patients were randomly divided into FSN (n = 30) and transcutaneous electrical nerve stimulation (TENS, n = 30) as the control group. Every subject was treated with three regimens and followed up for 15 days. Results showed that FSN has an immediate effect on VAS, PPT, TH, and PFG. Moreover, sustained effects on pain relief were followed up to 15 days. Pain remission was consistent with long-term PRTEE results. Overall, FSN is a safe and efficient therapy option for LE, significantly improving pain relief and activity difficulty with immediate, short-term, and long-term effectiveness. This trial is registered with ClinicalTrials.gov NCT03605563.
Collapse
|
13
|
Spencer RKW, Ha BY, Saeidi N. Self-consistent field theory of chiral nematic worm-like chains. J Chem Phys 2022; 156:114902. [PMID: 35317576 PMCID: PMC8934192 DOI: 10.1063/5.0078937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Many macromolecules of biological and technological interest are both chiral and semi-flexible. DNA and collagen are good examples. Such molecules often form chiral nematic (or cholesteric) phases, as is well-documented in collagen and chitin. This work presents a method for studying cholesteric phases in the highly successful self-consistent field theory of worm-like chains, offering a new way of studying many biologically relevant molecules. The method involves an effective Hamiltonian with a chiral term inspired by the Oseen-Frank (OF) model of liquid crystals. This method is then used to examine the formation of cholesteric phases in chiral-nematic worm-like chains as a function of polymer flexibility, as well as the optimal cholesteric pitch and distribution of polymer segment orientations. Our approach not only allows for the determination of the isotropic-cholesteric transition and segment distributions, beyond what the OF model promises, but also explicitly incorporates polymer flexibility into the study of the cholesteric phase, offering a more complete understanding of the behavior of semiflexible chiral-nematic polymers.
Collapse
Affiliation(s)
- Russell K. W. Spencer
- Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Bae-Yeun Ha
- Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
- Authors to whom correspondence should be addressed: and
| | - Nima Saeidi
- Department of Surgery, The Center for Engineering in Medicine (CEM), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
- Authors to whom correspondence should be addressed: and
| |
Collapse
|
14
|
Wang Z, Servio P, Rey A. Wrinkling pattern formation with periodic nematic orientation: From egg cartons to corrugated surfaces. Phys Rev E 2022; 105:034702. [PMID: 35428159 DOI: 10.1103/physreve.105.034702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Egg cartons, known as doubly sinusoidal surfaces, display a rich variety of saddles-cylinder-spherical patches organized with different spatial symmetries and connectivities. Egg carton surfaces, rich in functionalities, are observed in synthetic and biological materials, as well as across atomic and macroscopic scales. In this work we use the liquid crystal shape equation in the absence of elastic effects and normal stress jumps to predict and classify a family of uniaxial, equibiaxial, and biaxial egg cartons, according to the periodicities of the surface director field in nematic (N) and cholesteric (N*) liquid crystals under the presence of anisotropic surface tension (anchoring). Egg carton surface shape periodic solutions to the nonlinear and linearized liquid crystal shape equations predict that the mean curvature is a linear function of the orthogonal (along the surface normal) splay and bend contributions. Mixtures of egg carton surfaces (uniaxial, equibiaxial, and biaxial) emerge according to the symmetries of the nonsingular director field, and the spatial distributions of the director escape into the third dimension; pure uniaxial egg cartons emerge when the director escape has linelike geometries and mixtures of egg cartons arise under source or sink orientation lattices. Orientation symmetry and permutation analysis are incorporated into a full curvature (Casorati, shape parameter, mean curvature, and Gaussian curvature) characterization. Under a fixed anchoring parameter, conditions for maximal nanoscale curvedness and microscale maximal shape gradient diversity are identified. The present results contribute to various pathways to surface pattern formation using intrinsic anisotropic interfacial tension.
Collapse
Affiliation(s)
- Ziheng Wang
- Department of Chemical Engineering, McGill University, 3610 University Street, Montréal, Québec, Canada H3A 0C5
| | - Phillip Servio
- Department of Chemical Engineering, McGill University, 3610 University Street, Montréal, Québec, Canada H3A 0C5
| | - Alejandro Rey
- Department of Chemical Engineering, McGill University, 3610 University Street, Montréal, Québec, Canada H3A 0C5
| |
Collapse
|
15
|
Tendon-inspired fibers from liquid crystalline collagen as the pre-oriented bioink. Int J Biol Macromol 2021; 185:739-749. [PMID: 34216674 DOI: 10.1016/j.ijbiomac.2021.06.173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/25/2021] [Accepted: 06/26/2021] [Indexed: 11/20/2022]
Abstract
Nature provides rich bionic resources for the construction of advanced materials with excellent mechanical properties. In this work, inspired by animal tendons, a bionic collagen fiber was developed using collagen liquid crystals as the pre-oriented bioink. The texture of liquid crystalline collagen observed from polarized optical microscopy (POM) showed the specific molecular pre-orientation. Meanwhile, the collagen spinning liquids exhibited a minimal rise in viscosity upon increasing concentration from 60 to 120 mg/mL, indicating the feasible processability. The collagen fiber, which was prepared via wet spinning without being denatured, exhibited the favorable orientation of fibrils along its axis as observed with FESEM and AFM. Thanks to the synergistic effects between pre-orientation and shearing orientation, the maximum tensile strength and Young's modulus of collagen fibers reached 9.98 cN/tex (219.29 ± 22.92 MPa) and 43.95 ± 1.11 cN/tex (966.20 ± 24.30 MPa), respectively, which were also analogous to those of tendon. In addition, the collagen fiber possessed a desirable wet strength. Benefiting from the natural tissue affinity of collagen, the as-prepared bionic collagen fiber possessed excellent wound suture performance and biodegradability in vivo, which offers a new perspective for the potential of widespread applications of collagen fibers in biomedical fields.
Collapse
|
16
|
Alternating lamellar structure in human cellular cementum and rat compact bone: Its structure and formation. J Oral Biosci 2019; 61:105-114. [DOI: 10.1016/j.job.2019.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/20/2019] [Accepted: 03/30/2019] [Indexed: 11/22/2022]
|
17
|
Zhao J, Gulan U, Horie T, Ohmura N, Han J, Yang C, Kong J, Wang S, Xu BB. Advances in Biological Liquid Crystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900019. [PMID: 30892830 DOI: 10.1002/smll.201900019] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/17/2019] [Indexed: 06/09/2023]
Abstract
Biological liquid crystals, a rich set of soft materials with rod-like structures widely existing in nature, possess typical lyotropic liquid crystalline phase properties both in vitro (e.g., cellulose, peptides, and protein assemblies) and in vivo (e.g., cellular lipid membrane, packed DNA in bacteria, and aligned fibroblasts). Given the ability to undergo phase transition in response to various stimuli, numerous practices are exercised to spatially arrange biological liquid crystals. Here, a fundamental understanding of interactions between rod-shaped biological building blocks and their orientational ordering across multiple length scales is addressed. Discussions are made with regard to the dependence of physical properties of nonmotile objects on the first-order phase transition and the coexistence of multi-phases in passive liquid crystalline systems. This work also focuses on how the applied physical stimuli drives the reorganization of constituent passive particles for a new steady-state alignment. A number of recent progresses in the dynamics behaviors of active liquid crystals are presented, and particular attention is given to those self-propelled animate elements, like the formation of motile topological defects, active turbulence, correlation of orientational ordering, and cellular functions. Finally, future implications and potential applications of the biological liquid crystalline materials are discussed.
Collapse
Affiliation(s)
- Jianguo Zhao
- Quanzhou Institute of Equipment Manufacturing, Haixi Institutes, Chinese Academy of Sciences, Quanzhou, 362200, China
- Third Institute of Physics-Biophysics, University of Göttingen, 37077, Göttingen, Germany
| | - Utku Gulan
- Institute of Environmental Engineering, ETH Zurich, 8093, Zurich, Switzerland
| | - Takafumi Horie
- Department of Chemical Science and Engineering, Kobe University, Kobe, 657-8501, Japan
| | - Naoto Ohmura
- Department of Chemical Science and Engineering, Kobe University, Kobe, 657-8501, Japan
| | - Jun Han
- Quanzhou Institute of Equipment Manufacturing, Haixi Institutes, Chinese Academy of Sciences, Quanzhou, 362200, China
| | - Chao Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jie Kong
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Steven Wang
- School of Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Ben Bin Xu
- Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| |
Collapse
|
18
|
Anton-Sales I, Beekmann U, Laromaine A, Roig A, Kralisch D. Opportunities of Bacterial Cellulose to Treat Epithelial Tissues. Curr Drug Targets 2019; 20:808-822. [PMID: 30488795 PMCID: PMC7046991 DOI: 10.2174/1389450120666181129092144] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/22/2018] [Accepted: 11/07/2018] [Indexed: 12/17/2022]
Abstract
In this mini-review, we highlight the potential of the biopolymer bacterial cellulose to treat damaged epithelial tissues. Epithelial tissues are cell sheets that delimitate both the external body surfaces and the internal cavities and organs. Epithelia serve as physical protection to underlying organs, regulate the diffusion of molecules and ions, secrete substances and filtrate body fluids, among other vital functions. Because of their continuous exposure to environmental stressors, damage to epithelial tissues is highly prevalent. Here, we first compare the properties of bacterial cellulose to the current gold standard, collagen, and then we examine the use of bacterial cellulose patches to heal specific epithelial tissues; the outer skin, the ocular surface, the oral mucosa and other epithelial surfaces. Special emphasis is made on the dermis since, to date, this is the most widespread medical use of bacterial cellulose. It is important to note that some epithelial tissues represent only the outermost layer of more complex structures such as the skin or the cornea. In these situations, depending on the penetration of the lesion, bacterial cellulose might also be involved in the regeneration of, for instance, inner connective tissue.
Collapse
Affiliation(s)
| | | | - Anna Laromaine
- Address correspondence to these authors at the Institute of Materials Science of Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalunya, Spain; Tel: +34935801853; E-mails: ;
| | - Anna Roig
- Address correspondence to these authors at the Institute of Materials Science of Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalunya, Spain; Tel: +34935801853; E-mails: ;
| | | |
Collapse
|
19
|
Sorushanova A, Delgado LM, Wu Z, Shologu N, Kshirsagar A, Raghunath R, Mullen AM, Bayon Y, Pandit A, Raghunath M, Zeugolis DI. The Collagen Suprafamily: From Biosynthesis to Advanced Biomaterial Development. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1801651. [PMID: 30126066 DOI: 10.1002/adma.201801651] [Citation(s) in RCA: 497] [Impact Index Per Article: 99.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/03/2018] [Indexed: 05/20/2023]
Abstract
Collagen is the oldest and most abundant extracellular matrix protein that has found many applications in food, cosmetic, pharmaceutical, and biomedical industries. First, an overview of the family of collagens and their respective structures, conformation, and biosynthesis is provided. The advances and shortfalls of various collagen preparations (e.g., mammalian/marine extracted collagen, cell-produced collagens, recombinant collagens, and collagen-like peptides) and crosslinking technologies (e.g., chemical, physical, and biological) are then critically discussed. Subsequently, an array of structural, thermal, mechanical, biochemical, and biological assays is examined, which are developed to analyze and characterize collagenous structures. Lastly, a comprehensive review is provided on how advances in engineering, chemistry, and biology have enabled the development of bioactive, 3D structures (e.g., tissue grafts, biomaterials, cell-assembled tissue equivalents) that closely imitate native supramolecular assemblies and have the capacity to deliver in a localized and sustained manner viable cell populations and/or bioactive/therapeutic molecules. Clearly, collagens have a long history in both evolution and biotechnology and continue to offer both challenges and exciting opportunities in regenerative medicine as nature's biomaterial of choice.
Collapse
Affiliation(s)
- Anna Sorushanova
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Luis M Delgado
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Zhuning Wu
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Naledi Shologu
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Aniket Kshirsagar
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Rufus Raghunath
- Centre for Cell Biology and Tissue Engineering, Competence Centre Tissue Engineering for Drug Development (TEDD), Department Life Sciences and Facility Management, Institute for Chemistry and Biotechnology (ICBT), Zürich University of Applied Sciences, Wädenswil, Switzerland
| | | | - Yves Bayon
- Sofradim Production-A Medtronic Company, Trevoux, France
| | - Abhay Pandit
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Michael Raghunath
- Centre for Cell Biology and Tissue Engineering, Competence Centre Tissue Engineering for Drug Development (TEDD), Department Life Sciences and Facility Management, Institute for Chemistry and Biotechnology (ICBT), Zürich University of Applied Sciences, Wädenswil, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| |
Collapse
|
20
|
Zaitseva TS, Alcazar C, Zamani M, Hou L, Sawamura S, Yakubov E, Hopkins M, Woo YJ, Paukshto MV, Huang NF. Aligned Nanofibrillar Scaffolds for Controlled Delivery of Modified mRNA. Tissue Eng Part A 2019; 25:121-130. [PMID: 29717619 PMCID: PMC6352505 DOI: 10.1089/ten.tea.2017.0494] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/26/2018] [Indexed: 01/04/2023] Open
Abstract
RNA-based vector delivery is a promising gene therapy approach. Recent advances in chemical modification of mRNA structure to form modified mRNA (mmRNA or cmRNA or modRNA) have substantially improved their stability and translational efficiency within cells. However, mmRNA conventionally delivered in solution can be taken up nonspecifically or become cleared away prematurely, which markedly limits the potential benefit of mmRNA therapy. To address this limitation, we developed mmRNA-incorporated nanofibrillar scaffolds that could target spatially localized delivery and temporally controlled release of the mmRNA both in vitro and in vivo. To establish the efficacy of mmRNA therapy, mmRNA encoding reporter proteins such as green fluorescence protein or firefly luciferase (Fluc) was loaded into aligned nanofibrillar collagen scaffolds. The mmRNA was released from mmRNA-loaded scaffolds in a transient and temporally controlled manner and induced transfection of human fibroblasts in a dose-dependent manner. In vitro transfection was further verified using mmRNA encoding the angiogenic growth factor, hepatocyte growth factor (HGF). Finally, scaffold-based delivery of HGF mmRNA to the site of surgically induced muscle injury in mice resulted in significantly higher vascular regeneration after 14 days, compared to implantation of Fluc mmRNA-releasing scaffolds. After transfection with Fluc mmRNA-releasing scaffold in vivo, Fluc activity was detectable and localized to the muscle region, based on noninvasive bioluminescence imaging. Scaffold-based local mmRNA delivery as an off-the-shelf form of gene therapy has broad translatability for treating a wide range of diseases or injuries.
Collapse
Affiliation(s)
| | - Cynthia Alcazar
- Stanford Cardiovascular Institute, Stanford, California
- Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Maedeh Zamani
- Stanford Cardiovascular Institute, Stanford, California
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Luqia Hou
- Stanford Cardiovascular Institute, Stanford, California
- Veterans Affairs Palo Alto Health Care System, Palo Alto, California
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | | | - Michael Hopkins
- Stanford Cardiovascular Institute, Stanford, California
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Y. Joseph Woo
- Stanford Cardiovascular Institute, Stanford, California
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | - Ngan F. Huang
- Stanford Cardiovascular Institute, Stanford, California
- Veterans Affairs Palo Alto Health Care System, Palo Alto, California
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| |
Collapse
|
21
|
Rofouie P, Wang Z, Rey AD. Two-wavelength wrinkling patterns in helicoidal plywood surfaces: imprinting energy landscapes onto geometric landscapes. SOFT MATTER 2018; 14:5180-5185. [PMID: 29911719 DOI: 10.1039/c8sm01022f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present a model to investigate the formation of two-length scale surface patterns in biological and synthetic anisotropic soft matter materials through the high order interaction of anisotropic interfacial tension and capillarity at their free surfaces. The unique pattern-formation mechanism emerging from the presented model is based on the interaction between lower and higher order anchoring modes. Analytical and numerical solutions are used to shed light on why and how simple anisotropic anchoring generates two-lengthscale wrinkles whose amplitudes are given in terms of anchoring coefficients. The novel finding is that the surface energy landscape with its maxima and minima can be imprinted onto the surface geometric landscape. Symmetry relations and scaling laws are used to provide the explicit relations between the anchoring constants and surface profile of the two length scale wrinkles. These new findings establish a new paradigm for characterizing surface wrinkling in biological liquid crystals, and inspire the design of novel functional surface structures.
Collapse
Affiliation(s)
- P Rofouie
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 2B2, Canada.
| | | | | |
Collapse
|
22
|
Prévôt ME, Ustunel S, Hegmann E. Liquid Crystal Elastomers-A Path to Biocompatible and Biodegradable 3D-LCE Scaffolds for Tissue Regeneration. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E377. [PMID: 29510523 PMCID: PMC5872956 DOI: 10.3390/ma11030377] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 02/21/2018] [Accepted: 02/23/2018] [Indexed: 11/25/2022]
Abstract
The development of appropriate materials that can make breakthroughs in tissue engineering has long been pursued by the scientific community. Several types of material have been long tested and re-designed for this purpose. At the same time, liquid crystals (LCs) have captivated the scientific community since their discovery in 1888 and soon after were thought to be, in combination with polymers, artificial muscles. Within the past decade liquid crystal elastomers (LCE) have been attracting increasing interest for their use as smart advanced materials for biological applications. Here, we examine how LCEs can potentially be used as dynamic substrates for culturing cells, moving away from the classical two-dimensional cell-culture nature. We also briefly discuss the integration of a few technologies for the preparation of more sophisticated LCE-composite scaffolds for more dynamic biomaterials. The anisotropic properties of LCEs can be used not only to promote cell attachment and the proliferation of cells, but also to promote cell alignment under LCE-stimulated deformation. 3D LCEs are ideal materials for new insights to simulate and study the development of tissues and the complex interplay between cells.
Collapse
Affiliation(s)
- Marianne E Prévôt
- Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA.
| | - Senay Ustunel
- Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA.
- Chemical Physics Interdisciplinary Program (CPIP), Kent State University, Kent, OH 44242, USA.
| | - Elda Hegmann
- Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA.
- Chemical Physics Interdisciplinary Program (CPIP), Kent State University, Kent, OH 44242, USA.
- Department of Biological Sciences, Kent State University, Kent, OH 44242, USA.
| |
Collapse
|
23
|
Van Duong H, Chau TTL, Dang NTT, Nguyen DV, Le SL, Ho TS, Vu TP, Tran TTV, Nguyen TD. Self-aggregation of water-dispersible nanocollagen helices. Biomater Sci 2018; 6:651-660. [DOI: 10.1039/c7bm01141e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The self-aggregation of water-dispersible native collagen nanofibrils has been investigated to generate hierarchical networks with structural variation from helicity to layering.
Collapse
Affiliation(s)
- Hau Van Duong
- Department of Chemistry
- Hue University of Agriculture and Forestry
- Hue University
- Hue 530000
- Vietnam
| | - Trang The Lieu Chau
- Department of Chemistry
- Hue University of Sciences
- Hue University
- Hue 530000
- Vietnam
| | - Nhan Thi Thanh Dang
- Department of Chemistry
- Hue University of Education
- Hue University
- Hue 530000
- Vietnam
| | - Duc Van Nguyen
- Faculty of Agronomy
- Hue University of Agriculture and Forestry
- Hue 530000
- Vietnam
| | - Son Lam Le
- Department of Chemistry
- Hue University of Sciences
- Hue University
- Hue 530000
- Vietnam
| | - Thang Sy Ho
- Department of Natural Resource and Environment
- Dong Thap University
- Dong Thap 870000
- Vietnam
| | - Tuyen Phi Vu
- Institute of Research and Development
- Duy Tan University
- Da Nang 550000
- Vietnam
- National Institute of Information and Communications Strategy
| | - Thi Thi Van Tran
- Department of Chemistry
- Hue University of Sciences
- Hue University
- Hue 530000
- Vietnam
| | - Thanh-Dinh Nguyen
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| |
Collapse
|
24
|
Aguilar Gutierrez OF, Rey AD. Biological plywood film formation from para-nematic liquid crystalline organization. SOFT MATTER 2017; 13:8076-8088. [PMID: 29075703 DOI: 10.1039/c7sm01865g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In vitro non-equilibrium chiral phase ordering processes of biomacromolecular solutions offer a systematic and reproducible way of generating material architectures found in Nature, such as biological plywoods. Accelerated progress in biomimetic engineering of mesoscopic plywoods and other fibrous structures requires a fundamental understanding of processing and transport principles. In this work we focus on collagen I based materials and structures to find processing conditions that lead to defect-free collagen films displaying the helicoidal plywood architecture. Here we report experimentally-guided theory and simulations of the chiral phase ordering of collagen molecules through water solvent evaporation of pre-aligned dilute collagen solutions. We develop, implement and a posteriori validate an integrated liquid crystal chiral phase ordering-water transport model that captures the essential features of spatio-temporal chiral structure formation in shrinking film domains due to directed water loss. Three microstructural (texture) modes are identified depending on the particular value of the time-scale ratio defined by collagen rotational diffusion to water translational diffusion. The magnitude of the time scale ratio provides the conditions for the synchronization of the helical axis morphogenesis with the increase in the mesogen concentration due to water loss. Slower than critical water removal rates leads to internal multiaxial cellular patterns, reminiscent of the classical columnar-equiaxed metallurgical casting structures. Excessive water removal rates lead to destabilization of the chiral axis and multidomain defected films. The predictions of the integrated model are in qualitative agreement with experimental results and can potentially guide solution processing of other bio-related mesogenic solutions that seek to mimic the architecture of biological fibrous composites.
Collapse
Affiliation(s)
- Oscar F Aguilar Gutierrez
- Department of Chemical Engineering, McGill University 3610 University St. Montreal, Quebec, H3A 0C5, Canada.
| | | |
Collapse
|
25
|
Chien YC, Tao J, Saeki K, Chin AF, Lau JL, Chen CL, Zuckermann RN, Marshall SJ, Marshall GW, De Yoreo JJ. Using biomimetic polymers in place of noncollagenous proteins to achieve functional remineralization of dentin tissues. ACS Biomater Sci Eng 2017; 3:3469-3479. [PMID: 29479561 DOI: 10.1021/acsbiomaterials.7b00378] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In calcified tissues such as bones and teeth, mineralization is regulated by an extracellular matrix, which includes non-collagenous proteins (NCP). This natural process has been adapted or mimicked to restore tissues following physical damage or demineralization by using polyanionic acids in place of NCPs, but the remineralized tissues fail to fully recover their mechanical properties. Here we show that pre-treatment with certain amphiphilic peptoids, a class of peptide-like polymers consisting of N-substituted glycines that have defined monomer sequences, enhances ordering and mineralization of collagen and induces functional remineralization of dentin lesions in vitro. In the vicinity of dentin tubules, the newly formed apatite nano-crystals are co-aligned with the c-axis parallel to the tubular periphery and recovery of tissue ultrastructure is accompanied by development of high mechanical strength. The observed effects are highly sequence-dependent with alternating polar and non-polar groups leading to positive outcomes while diblock sequences have no effect. The observations suggest aromatic groups interact with the collagen while the hydrophilic side chains bind the mineralizing constituents and highlight the potential of synthetic sequence-defined biomimetic polymers to serve as NCP mimics in tissue remineralization.
Collapse
Affiliation(s)
- Yung-Ching Chien
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720.,Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, CA, 94143
| | - Jinhui Tao
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720.,Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352
| | - Kuniko Saeki
- Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, CA, 94143
| | - Alexander F Chin
- Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, CA, 94143
| | - Jolene L Lau
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720
| | - Chun-Long Chen
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720.,Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352
| | - Ronald N Zuckermann
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720
| | - Sally J Marshall
- Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, CA, 94143
| | - Grayson W Marshall
- Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, CA, 94143
| | - James J De Yoreo
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720.,Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352.,Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195
| |
Collapse
|
26
|
Ozasa R, Matsugaki A, Isobe Y, Saku T, Yun HS, Nakano T. Construction of human induced pluripotent stem cell-derived oriented bone matrix microstructure by using in vitro engineered anisotropic culture model. J Biomed Mater Res A 2017; 106:360-369. [PMID: 28921822 PMCID: PMC5765486 DOI: 10.1002/jbm.a.36238] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/01/2017] [Accepted: 09/14/2017] [Indexed: 01/27/2023]
Abstract
Bone tissue has anisotropic microstructure based on collagen/biological apatite orientation, which plays essential roles in the mechanical and biological functions of bone. However, obtaining an appropriate anisotropic microstructure during the bone regeneration process remains a great challenging. A powerful strategy for the control of both differentiation and structural development of newly‐formed bone is required in bone tissue engineering, in order to realize functional bone tissue regeneration. In this study, we developed a novel anisotropic culture model by combining human induced pluripotent stem cells (hiPSCs) and artificially‐controlled oriented collagen scaffold. The oriented collagen scaffold allowed hiPSCs‐derived osteoblast alignment and further construction of anisotropic bone matrix which mimics the bone tissue microstructure. To the best of our knowledge, this is the first report showing the construction of bone mimetic anisotropic bone matrix microstructure from hiPSCs. Moreover, we demonstrated for the first time that the hiPSCs‐derived osteoblasts possess a high level of intact functionality to regulate cell alignment. © 2017 The Authors Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 360–369, 2018.
Collapse
Affiliation(s)
- Ryosuke Ozasa
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Aira Matsugaki
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Yoshihiro Isobe
- Atree, Inc., 16-12-1 Hiroo, Shibuya-ku, Tokyo, 150-0012, Japan
| | - Taro Saku
- Atree, Inc., 16-12-1 Hiroo, Shibuya-ku, Tokyo, 150-0012, Japan
| | - Hui-Suk Yun
- Powder and Ceramics Division, Korea Institute of Materials Science, Changwon, Gyeongnam, 642-831, Korea
| | - Takayoshi Nakano
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| |
Collapse
|
27
|
Abstract
Liquid crystals play an important role in biology because the combination of order and mobility is a basic requirement for self-organisation and structure formation in living systems. Cholesteric liquid crystals are omnipresent in living matter under both in vivo and in vitro conditions and address the major types of molecules essential to life. In the animal and plant kingdoms, the cholesteric structure is a recurring design, suggesting a convergent evolution to an optimised left-handed helix. Herein, we review the recent advances in the cholesteric organisation of DNA, chromatin, chitin, cellulose, collagen, viruses, silk and cholesterol ester deposition in atherosclerosis. Cholesteric structures can be found in bacteriophages, archaea, eukaryotes, bacterial nucleoids, chromosomes of unicellular algae, sperm nuclei of many vertebrates, cuticles of crustaceans and insects, bone, tendon, cornea, fish scales and scutes, cuttlebone and squid pens, plant cell walls, virus suspensions, silk produced by spiders and silkworms, and arterial wall lesions. This article specifically aims at describing the consequences of the cholesteric geometry in living matter, which are far from being fully defined and understood, and discusses various perspectives. The roles and functions of biological cholesteric liquid crystals include maximisation of packing efficiency, morphogenesis, mechanical stability, optical information, radiation protection and evolution pressure.
Collapse
Affiliation(s)
- Michel Mitov
- Centre d'Elaboration de Matériaux et d'Etudes Structurales (CEMES), CNRS, BP 94347, 29 rue Jeanne-Marvig, F-31055 Toulouse Cedex 4, France.
| |
Collapse
|
28
|
Aguilar Gutierrez OF, Rey AD. Theory and Simulation of Cholesteric Film Formation Flows of Dilute Collagen Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11799-11812. [PMID: 27797530 DOI: 10.1021/acs.langmuir.6b03443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Dilute isotropic collagen solutions are usually flow processed into monodomain chiral nematic thin films for obtaining highly ordered materials by a multistep process that starts with complex inhomogeneous flow kinematics. Here we present rigorous theory and simulation of the initial precursors during flow steps in cholesteric collagen film formation. We first extract the molecular shape parameter and rotational diffusivity from previously reported simple shear data of dilute collagen solutions, where the former leads the reactive parameter (tumbling function) which determines the net effect of vorticity and strain rate on the average orientation and where the latter establishes the intensity of strain required for flow-birefringence, both crucial quantities for controlled film formation flow. We find that the tumbling function is similar to those of rod-like lyotropic liquid crystalline polymers and hence it is predicted that they would tumble in the ordered high concentration state leading to flow-induced texturing. The previously reported experimental data is well fitted with rotational diffusivities whose order of magnitude is consistent to those of other biomacromolecules. We then investigate the response of the tensor order parameter to complex flow kinematics, ranging from pure vorticity, through simple shear, to extensional flow, as may arise in typical flow casting and film flows. The chosen control variable to produce precursor cholesteric films is the director or average orientation, since the nematic order is set close to typical values found in concentrated cholesteric type I collagen solutions. Using the efficient four-roll mill kinematics, we summarize the para-nematic structure-flow process diagram in terms of the director orientation and flow type. Using analysis and computation, we provide a parametric envelope that is necessary to eventually produce well-aligned cholesteric films. We conclude that extensional flow is an essential ingredient of well-ordered film precursors with required Deborah numbers on the order of unity.
Collapse
Affiliation(s)
- O F Aguilar Gutierrez
- Department of Chemical Engineering, McGill University , 3610 University Street, Montreal, Quebec H3A 0C5, Canada
| | - Alejandro D Rey
- Department of Chemical Engineering, McGill University , 3610 University Street, Montreal, Quebec H3A 0C5, Canada
| |
Collapse
|
29
|
Ghazanfari S, Khademhosseini A, Smit TH. Mechanisms of lamellar collagen formation in connective tissues. Biomaterials 2016; 97:74-84. [DOI: 10.1016/j.biomaterials.2016.04.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 03/29/2016] [Accepted: 04/20/2016] [Indexed: 12/16/2022]
|
30
|
Quarta M, Brett JO, DiMarco R, De Morree A, Boutet SC, Chacon R, Gibbons MC, Garcia VA, Su J, Shrager JB, Heilshorn S, Rando TA. An artificial niche preserves the quiescence of muscle stem cells and enhances their therapeutic efficacy. Nat Biotechnol 2016; 34:752-9. [PMID: 27240197 PMCID: PMC4942359 DOI: 10.1038/nbt.3576] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 04/15/2016] [Indexed: 12/11/2022]
Abstract
A promising therapeutic strategy for diverse genetic disorders involves transplantation of autologous stem cells that have been genetically corrected ex vivo. A major challenge in such approaches is a loss of stem cell potency during culture. Here we describe an artificial niche for maintaining muscle stem cells (MuSCs) in vitro in a potent, quiescent state. Using a machine learning method, we identified a molecular signature of quiescence and used it to screen for factors that could maintain mouse MuSC quiescence, thus defining a quiescence medium (QM). We also engineered muscle fibers that mimic the native myofiber of the MuSC niche. Mouse MuSCs maintained in QM on engineered fibers showed enhanced potential for engraftment, tissue regeneration and self-renewal after transplantation in mice. An artificial niche adapted to human cells similarly extended the quiescence of human MuSCs in vitro and enhanced their potency in vivo. Our approach for maintaining quiescence may be applicable to stem cells isolated from other tissues.
Collapse
Affiliation(s)
- Marco Quarta
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Jamie O. Brett
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Rebecca DiMarco
- Department of Bioengineering, Stanford University, Stanford, California, USA
| | - Antoine De Morree
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
| | - Stephane C. Boutet
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
| | - Robert Chacon
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Michael C. Gibbons
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Victor A. Garcia
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - James Su
- Department of Materials Science & Engineering, Stanford University, Stanford, California, USA
| | - Joseph B. Shrager
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Sarah Heilshorn
- Department of Materials Science & Engineering, Stanford University, Stanford, California, USA
| | - Thomas A. Rando
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA
- Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| |
Collapse
|
31
|
Magneto-responsive liquid crystalline elastomer nanocomposites as potential candidates for dynamic cell culture substrates. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:369-78. [PMID: 27157764 DOI: 10.1016/j.msec.2016.04.063] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/31/2016] [Accepted: 04/18/2016] [Indexed: 01/14/2023]
Abstract
Recently, liquid crystalline elastomers (LCEs) have been proposed as active substrates for cell culture due to their potential to attach and orient cells, and impose dynamic mechanical signals through the application of external stimuli. In this report, the preparation of anisotropic and oriented nematic magnetic-sensitized LCEs with iron oxide nanoparticles, and the evaluation of the effect of particle addition at low concentrations on the resultant structural, thermal, thermo-mechanical, and mechanical properties is presented. Phase transformations produced by heating in alternating magnetic fields were investigated in LCEs in contact with air, water, and a common liquid cell culture medium was also evaluated. The inclusion of nanoparticles into the elastomers displaced the nematic-to-isotropic phase transition, without affecting the nematic structure as evidenced by similar values of the order parameter, while reducing the maximum thermomechanical deformations. Remote and reversible deformations of the magnetic LCEs were achieved through the application of alternating magnetic fields, which induces the nematic-isotropic phase transition through nanoparticle heat generation. Formulation parameters can be modified to allow for remote actuation at values closer to the human physiological temperature range and within the range of deformations that can affect the cellular behavior of fibroblasts. Finally, a collagen surface treatment was performed to improve compatibility with NIH-3T3 fibroblast cultures, which enabled the attachment and proliferation of fibroblasts on substrates with and without magnetic particles under quiescent conditions. The LCEs developed in this work, which are able to deform and experience stress changes by remote contact-less magnetic stimulation, may allow for further studies on the effect of substrate morphology changes and dynamic mechanical properties during in vitro cell culture.
Collapse
|
32
|
Price JC, Roach P, El Haj AJ. Liquid Crystalline Ordered Collagen Substrates for Applications in Tissue Engineering. ACS Biomater Sci Eng 2016; 2:625-633. [DOI: 10.1021/acsbiomaterials.6b00030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Joshua C Price
- ISTM
Guy Hilton Research Centre, Keele University, Thornburrow Drive, Stoke on Trent ST4 7QB, United Kingdom
| | - Paul Roach
- ISTM
Guy Hilton Research Centre, Keele University, Thornburrow Drive, Stoke on Trent ST4 7QB, United Kingdom
| | - Alicia J El Haj
- ISTM
Guy Hilton Research Centre, Keele University, Thornburrow Drive, Stoke on Trent ST4 7QB, United Kingdom
| |
Collapse
|
33
|
Tang M, Ding S, Min X, Jiao Y, Li L, Li H, Zhou C. Collagen films with stabilized liquid crystalline phases and concerns on osteoblast behaviors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:977-85. [DOI: 10.1016/j.msec.2015.09.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 08/19/2015] [Accepted: 09/13/2015] [Indexed: 11/30/2022]
|
34
|
Jin HE, Jang J, Chung J, Lee HJ, Wang E, Lee SW, Chung WJ. Biomimetic Self-Templated Hierarchical Structures of Collagen-Like Peptide Amphiphiles. NANO LETTERS 2015; 15:7138-45. [PMID: 26392232 DOI: 10.1021/acs.nanolett.5b03313] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Developing hierarchically structured biomaterials with tunable chemical and physical properties like those found in nature is critically important to regenerative medicine and studies on tissue morphogenesis. Despite advances in materials synthesis and assembly processes, our ability to control hierarchical assembly using fibrillar biomolecules remains limited. Here, we developed a bioinspired approach to create collagen-like materials through directed evolutionary screening and directed self-assembly. We first synthesized peptide amphiphiles by coupling phage display-identified collagen-like peptides to long-chain fatty acids. We then assembled the amphiphiles into diverse, hierarchically organized, nanofibrous structures using directed self-assembly based on liquid crystal flow and its controlled deposition. The resulting structures sustained and directed the growth of bone cells and hydroxyapatite biominerals. We believe these self-assembling collagen-like amphiphiles could prove useful in the structural design of tissue regenerating materials.
Collapse
Affiliation(s)
- Hyo-Eon Jin
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
- Physical Biosciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Jaein Jang
- Department of Genetic Engineering, College of Biotechnology & Bioengineering, Sungkyunkwan University , Suwon, Gyeonggi-do 440-746, Korea
| | - Jinhyo Chung
- Department of Genetic Engineering, College of Biotechnology & Bioengineering, Sungkyunkwan University , Suwon, Gyeonggi-do 440-746, Korea
| | - Hee Jung Lee
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Eddie Wang
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Seung-Wuk Lee
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
- Physical Biosciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Woo-Jae Chung
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
- Physical Biosciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
- Department of Genetic Engineering, College of Biotechnology & Bioengineering, Sungkyunkwan University , Suwon, Gyeonggi-do 440-746, Korea
| |
Collapse
|
35
|
Rofouie P, Pasini D, Rey AD. Tunable nano-wrinkling of chiral surfaces: Structure and diffraction optics. J Chem Phys 2015; 143:114701. [DOI: 10.1063/1.4929337] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- P. Rofouie
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 2B2, Canada
| | - D. Pasini
- Department of Mechanical Engineering, McGill University, 817 Sherbrook West, Montreal, Quebec H3A 0C3, Canada
| | - A. D. Rey
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 2B2, Canada
| |
Collapse
|
36
|
Nakayama KH, Hong G, Lee JC, Patel J, Edwards B, Zaitseva TS, Paukshto MV, Dai H, Cooke JP, Woo YJ, Huang NF. Aligned-Braided Nanofibrillar Scaffold with Endothelial Cells Enhances Arteriogenesis. ACS NANO 2015; 9:6900-8. [PMID: 26061869 PMCID: PMC4757475 DOI: 10.1021/acsnano.5b00545] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The objective of this study was to enhance the angiogenic capacity of endothelial cells (ECs) using nanoscale signaling cues from aligned nanofibrillar scaffolds in the setting of tissue ischemia. Thread-like nanofibrillar scaffolds with porous structure were fabricated from aligned-braided membranes generated under shear from liquid crystal collagen solution. Human ECs showed greater outgrowth from aligned scaffolds than from nonpatterned scaffolds. Integrin α1 was in part responsible for the enhanced cellular outgrowth on aligned nanofibrillar scaffolds, as the effect was abrogated by integrin α1 inhibition. To test the efficacy of EC-seeded aligned nanofibrillar scaffolds in improving neovascularization in vivo, the ischemic limbs of mice were treated with EC-seeded aligned nanofibrillar scaffold; EC-seeded nonpatterned scaffold; ECs in saline; aligned nanofibrillar scaffold alone; or no treatment. After 14 days, laser Doppler blood spectroscopy demonstrated significant improvement in blood perfusion recovery when treated with EC-seeded aligned nanofibrillar scaffolds, in comparison to ECs in saline or no treatment. In ischemic hindlimbs treated with scaffolds seeded with human ECs derived from induced pluripotent stem cells (iPSC-ECs), single-walled carbon nanotube (SWNT) fluorophores were systemically delivered to quantify microvascular density after 28 days. Near infrared-II (NIR-II, 1000-1700 nm) imaging of SWNT fluorophores demonstrated that iPSC-EC-seeded aligned scaffolds group showed significantly higher microvascular density than the saline or cells groups. These data suggest that treatment with EC-seeded aligned nanofibrillar scaffolds improved blood perfusion and arteriogenesis, when compared to treatment with cells alone or scaffold alone, and have important implications in the design of therapeutic cell delivery strategies.
Collapse
Affiliation(s)
- Karina H. Nakayama
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
| | - Guosong Hong
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Jerry C. Lee
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
| | - Jay Patel
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Bryan Edwards
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | | | | | - Hongjie Dai
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - John P. Cooke
- Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, USA
| | - Y. Joseph Woo
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Ngan F. Huang
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Address for Correspondence: Ngan F. Huang, PhD, Assistant Professor, Department of Cardiothoracic Surgery, Stanford University, Address: 300 Pasteur Drive, Stanford, CA 94305-5407, Tel: (650) 849-0559, Fax: (650) 849-1215,
| |
Collapse
|
37
|
Rofouie P, Pasini D, Rey AD. Nano-scale surface wrinkling in chiral liquid crystals and plant-based plywoods. SOFT MATTER 2015; 11:1127-1139. [PMID: 25531936 DOI: 10.1039/c4sm02371d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present theoretical scaling and computational analysis of nanostructured free surfaces formed in chiral liquid crystals (LC) and plant-based twisted plywoods. A nemato-capillary model is used to derive a generalized equation that governs the shape of cholesteric free surfaces. It is shown that the shape equation includes three distinct contributions to the capillary pressure: area dilation, area rotation, and director curvature. To analyse the origin of periodic reliefs in plywood surfaces, these three pressure contributions and corresponding surface energies are systematically investigated. It is found that for weak homeotropic surface anchoring, the nano-wrinkling is driven by the director curvature pressure mechanism. Consequently, the model predicts that for a planar surface with a uniform tangential helix vector, no surface nano-scale wrinkling can be observed because the director curvature pressure is zero. Scaling is used to derive the explicit relation between the wrinkling's amplitude to the wavelength ratio as a function of the anisotropic surface tension, which is then validated with experimental values. These new findings can be used to characterize plant-based twisted plywoods, as well as to inspire the design of biomimetic chiro-optical devices.
Collapse
Affiliation(s)
- Pardis Rofouie
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 2B2, Canada.
| | | | | |
Collapse
|
38
|
Aguilar Gutierrez OF, Rey AD. Structure characterisation method for ideal and non-ideal twisted plywoods. SOFT MATTER 2014; 10:9446-9453. [PMID: 25342518 DOI: 10.1039/c4sm01803f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The twisted plywood architecture, known as the Bouligand structure, is a ubiquitous biological and synthetic fibrous composite structure, analogous to that of cholesteric liquid crystals. Twisted plywoods can show ideal or non-ideal structures and are formed via equilibrium or non-equilibrium liquid crystal self-assembly processes. A key to the structure characterisation of plywood films is the specification of the local and global helix vector h(x) and pitch p(x) of the cholesteric order. Previous extensive work demonstrated that oblique cuts of the plywood give rise to arc-patterns that depend both on the unknown incision angle α and the unknown pitch p(x), thus making the precise 3D cholesteric reconstruction ambiguous. In this paper we present an efficient method based on geometric modelling and new visualization software that determines unambiguously the cholesteric pitch under spatially homogeneous and heterogeneous conditions. The method is applied to films that display two-pitch and spatially non-homogenous structures, as sometimes observed under equilibrium and non-equilibrium self-assembly. The method can be extended to other biological materials such as cornea-like, cylindrical, and various cuticle plywoods.
Collapse
Affiliation(s)
- Oscar F Aguilar Gutierrez
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada. alejandro.rey @mcgill.ca
| | | |
Collapse
|
39
|
Long K, Liu Y, Li W, Wang L, Liu S, Wang Y, Wang Z, Ren L. Improving the mechanical properties of collagen-based membranes using silk fibroin for corneal tissue engineering. J Biomed Mater Res A 2014; 103:1159-68. [PMID: 25044509 DOI: 10.1002/jbm.a.35268] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/04/2014] [Accepted: 06/24/2014] [Indexed: 11/06/2022]
Abstract
Although collagen with outstanding biocompatibility has promising application in corneal tissue engineering, the mechanical properties of collagen-based scaffolds, especially suture retention strength, must be further improved to satisfy the requirements of clinical applications. This article describes a toughness reinforced collagen-based membrane using silk fibroin. The collagen-silk fibroin membranes based on collagen [silk fibroin (w/w) ratios of 100:5, 100:10, and 100:20] were prepared by using silk fibroin and cross-linking by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide. These membranes were analyzed by scanning electron microscopy and their optical property, and NaCl and tryptophan diffusivity had been tested. The water content was found to be dependent on the content of silk fibroin, and CS10 membrane (loading 10 wt % of silk fibroin) performed the optimal mechanical properties. Also the suture experiments have proved CS10 has high suture retention strength, which can be sutured in rabbit eyes integrally. Moreover, the composite membrane proved good biocompatibility for the proliferation of human corneal epithelial cells in vitro. Lamellar keratoplasty shows that CS10 membrane promoted complete epithelialization in 35 ± 5 days, and their transparency is restored quickly in the first month. Corneal rejection reaction, neovascularization, and keratoconus are not observed. The composite films show potential for use in the field of corneal tissue engineering.
Collapse
Affiliation(s)
- Kai Long
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, China
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
Constructing biomimetic tissue architecture in vitro holds the key to the realization of tissue engineering. To control the anisotropic microstructure of bone tissue which governs the mechanical properties of bone, especially, is imperative for the establishment of ideal bone regeneration process. In this study, highly aligned collagen scaffolds were fabricated to control osteoblast alignment. Collagen fibrillogenesis were regulated by an extrusion process, resulting in formation of biomimetic, hierarchically-aligned bony microstructure. Osteoblasts adhered to the fabricated scaffolds showed aligned morphology along the collagen orientation. In the present method, the degree of scaffold orientation is regulatable, which suggests that the designing of the appropriate scaffolds depending on the tissue anisotropy is possible. Interestingly, the bone matrix produced by the aligned osteoblasts exhibited anisotropic microstructure along the cell alignment. Our findings imply that controlling the osteoblast alignment by oriented collagen scaffolds could be an initiator to establish the anisotropic bone structural development or regeneration.
Collapse
|
41
|
Matsugaki A, Isobe Y, Saku T, Nakano T. Quantitative regulation of bone-mimetic, oriented collagen/apatite matrix structure depends on the degree of osteoblast alignment on oriented collagen substrates. J Biomed Mater Res A 2014; 103:489-99. [PMID: 24733774 DOI: 10.1002/jbm.a.35189] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/19/2014] [Accepted: 03/26/2014] [Indexed: 11/09/2022]
Abstract
Bone tissue has a specific anisotropic morphology derived from collagen fiber alignment and the related apatite crystal orientation as a bone quality index. However, the precise mechanism of cellular regulation of the crystallographic orientation of apatite has not been clarified. In this study, anisotropic construction of cell-produced mineralized matrix in vitro was established by initiating organized cellular alignment and subsequent oriented bone-like matrix (collagen/apatite) production. The oriented collagen substrates with three anisotropic levels were prepared by a hydrodynamic method. Primary osteoblasts were cultured on the fabricated substrates until mineralized matrix formation is confirmed. Osteoblast alignment was successfully regulated by the level of substrate collagen orientation, with preferential alignment along the direction of the collagen fibers. Notably, both fibrous orientation of newly synthesized collagen matrix and c-axis of produced apatite crystals showed preferential orientation along the cell direction. Because the degree of anisotropy of the deposited apatite crystals showed dependency on the directional distribution of osteoblasts cultured on the oriented collagen substrates, the cell orientation determines the crystallographic anisotropy of produced apatite crystals. To the best of our knowledge, this is the first report demonstrating that bone tissue anisotropy, even the alignment of apatite crystals, is controllable by varying the degree of osteoblast alignment via regulating the level of substrate orientation.
Collapse
Affiliation(s)
- Aira Matsugaki
- Department of Materials Science and Engineering Graduate School of Engineering, Osaka University, 2-1, Yamada-Oka, Suita, Osaka, 565-0871, Japan
| | | | | | | |
Collapse
|
42
|
Lai ES, Huang NF, Cooke JP, Fuller GG. Aligned nanofibrillar collagen regulates endothelial organization and migration. Regen Med 2013; 7:649-61. [PMID: 22954436 DOI: 10.2217/rme.12.48] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM Modulating endothelial cell (EC) morphology and motility, with the aim to influence their biology, might be beneficial for the treatment of vascular disease. We examined the effect of nanoscale matrix anisotropy on EC organization and migration for vascular tissue engineering applications. MATERIALS & METHODS We developed a flow processing technique to generate anisotropic nanofibrillar collagen. Human ECs were cultured on aligned or on randomly oriented collagen, and their cellular alignment and cytoskeletal organization were characterized by immunofluorescence staining and time-lapse microscopy. RESULTS ECs were elongated along the direction of aligned collagen nanofibrils and had organized focal adhesions. Cellular protrusion migrated with greater directionality and higher velocity along the anisotropic nanofibrils compared with cells on random nanofibrils. The flow technique can be adapted to fabricate vascular grafts that support the endothelial phenotype. CONCLUSION Aligned nanofibrillar collagen regulates EC organization and migration, which can significantly contribute to the development of vascular grafts.
Collapse
Affiliation(s)
- Edwina S Lai
- Department of Chemical Engineering, Stanford University, 380 North-South Mall, Stanford, CA 94305, USA
| | | | | | | |
Collapse
|
43
|
The modulation of endothelial cell morphology, function, and survival using anisotropic nanofibrillar collagen scaffolds. Biomaterials 2013; 34:4038-4047. [PMID: 23480958 DOI: 10.1016/j.biomaterials.2013.02.036] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 02/12/2013] [Indexed: 01/06/2023]
Abstract
Endothelial cells (ECs) are aligned longitudinally under laminar flow, whereas they are polygonal and poorly aligned in regions of disturbed flow. The unaligned ECs in disturbed flow fields manifest altered function and reduced survival that promote lesion formation. We demonstrate that the alignment of the ECs may directly influence their biology, independent of fluid flow. We developed aligned nanofibrillar collagen scaffolds that mimic the structure of collagen bundles in blood vessels, and examined the effects of these materials on EC alignment, function, and in vivo survival. ECs cultured on 30-nm diameter aligned fibrils re-organized their F-actin along the nanofibril direction, and were 50% less adhesive for monocytes than the ECs grown on randomly oriented fibrils. After EC transplantation into both subcutaneous tissue and the ischemic hindlimb, EC viability was enhanced when ECs were cultured and implanted on aligned nanofibrillar scaffolds, in contrast to non-patterned scaffolds. ECs derived from human induced pluripotent stem cells and cultured on aligned scaffolds also persisted for over 28 days, as assessed by bioluminescence imaging, when implanted in ischemic tissue. By contrast, ECs implanted on scaffolds without nanopatterning generated no detectable bioluminescent signal by day 4 in either normal or ischemic tissues. We demonstrate that 30-nm aligned nanofibrillar collagen scaffolds guide cellular organization, modulate endothelial inflammatory response, and enhance cell survival after implantation in normal and ischemic tissues.
Collapse
|
44
|
Reiser KM, McCourt AB, Yankelevich DR, Knoesen A. Structural origins of chiral second-order optical nonlinearity in collagen: amide I band. Biophys J 2012. [PMID: 23200051 DOI: 10.1016/j.bpj.2012.10.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The molecular basis of nonlinear optical (NLO) chiral effects in the amide I region of type I collagen was investigated using sum-frequency generation vibrational spectroscopy; chiral and achiral tensor elements were separated using different input/output beam polarization conditions. Spectra were obtained from native rat tail tendon (RTT) collagen and from cholesteric liquid crystal-like (LC) type I collagen films. Although RTT and LC collagen both possess long-range order, LC collagen lacks the complex hierarchical organization of RTT collagen. Their spectra were compared to assess the role of such organization in NLO chirality. No significant differences were observed between RTT and LC with respect to chiral or achiral spectra. These findings suggest that amide I NLO chiral effects in type I collagen assemblies arise predominantly from the chiral organization of amide chromophores within individual collagen molecules, rather than from supramolecular structures. The study suggests that sum-frequency generation vibrational spectroscopy may be uniquely valuable in exploring fundamental aspects of chiral nonlinearity in complex macromolecular structures.
Collapse
Affiliation(s)
- Karen M Reiser
- Department of Electrical and Computer Engineering, University of California, Davis, CA, USA
| | | | | | | |
Collapse
|
45
|
Tanaka Y, Kubota A, Matsusaki M, Duncan T, Hatakeyama Y, Fukuyama K, Quantock AJ, Yamato M, Akashi M, Nishida K. Anisotropic Mechanical Properties of Collagen Hydrogels Induced by Uniaxial-Flow for Ocular Applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1427-42. [DOI: 10.1163/092050610x510542] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Yuji Tanaka
- a Department of Ophthalmology and Visual Science, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Akira Kubota
- b Department of Ophthalmology and Visual Science, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Michiya Matsusaki
- c Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Thomas Duncan
- d Department of Ophthalmology and Visual Science, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan; Structural Biophysics Group, School of Optometry and Vision Sciences, Cardiff University, Maindy Road, Cardiff CF24 4LU, UK
| | - Yoshikiyo Hatakeyama
- e Division of Nanoscience, Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Katsuya Fukuyama
- f Center for Liberal Arts, Meiji Gakuin University, 1518 Kamikurata-cho, Totsuka-ku, Yokohama, Kanagawa 244-8539, Japan
| | - Andrew J. Quantock
- g Structural Biophysics Group, School of Optometry and Vision Sciences, Cardiff University, Maindy Road, Cardiff CF24 4LU, UK
| | - Masayuki Yamato
- h Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
| | - Mitsuru Akashi
- i Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Kohji Nishida
- j Department of Ophthalmology and Visual Science, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| |
Collapse
|
46
|
Isobe Y, Kosaka T, Kuwahara G, Mikami H, Saku T, Kodama S. Oriented Collagen Scaffolds for Tissue Engineering. MATERIALS 2012; 5:501-511. [PMID: 28817059 PMCID: PMC5448924 DOI: 10.3390/ma5030501] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Revised: 03/06/2012] [Accepted: 03/08/2012] [Indexed: 11/16/2022]
Abstract
Oriented collagen scaffolds were developed in the form of sheet, mesh and tube by arraying flow-oriented collagen string gels and dehydrating the arrayed gels. The developed collagen scaffolds can be any practical size with any direction of orientation for tissue engineering applications. The birefringence of the collagen scaffolds was quantitatively analyzed by parallel Nicols method. Since native collagen in the human body has orientations such as bone, cartilage, tendon and cornea, and the orientation has a special role for the function of human organs, the developed various types of three-dimensional oriented collagen scaffolds are expected to be useful biomaterials for tissue engineering and regenerative medicines.
Collapse
Affiliation(s)
- Yoshihiro Isobe
- Atree Inc., 16-12-1 Hiroo Shibuya-ku, Tokyo, 150-0012, Japan.
| | - Toru Kosaka
- Atree Inc., 16-12-1 Hiroo Shibuya-ku, Tokyo, 150-0012, Japan.
| | - Go Kuwahara
- Department of Regenerative Medicine & Transplantation, Faculty of Medicine, Fukuoka University, 7-45-1, Nanakuma, Jonan-ku, Fukuoka City, Fukuoka Pref, 814-0133, Japan.
| | - Hiroshi Mikami
- Department of Regenerative Medicine & Transplantation, Faculty of Medicine, Fukuoka University, 7-45-1, Nanakuma, Jonan-ku, Fukuoka City, Fukuoka Pref, 814-0133, Japan.
| | - Taro Saku
- Atree Inc., 16-12-1 Hiroo Shibuya-ku, Tokyo, 150-0012, Japan.
| | - Shohta Kodama
- Department of Regenerative Medicine & Transplantation, Faculty of Medicine, Fukuoka University, 7-45-1, Nanakuma, Jonan-ku, Fukuoka City, Fukuoka Pref, 814-0133, Japan.
| |
Collapse
|
47
|
Yamamoto T, Hasegawa T, Sasaki M, Hongo H, Tabata C, Liu Z, Li M, Amizuka N. Structure and formation of the twisted plywood pattern of collagen fibrils in rat lamellar bone. Microscopy (Oxf) 2012; 61:113-21. [DOI: 10.1093/jmicro/dfs033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
48
|
Muthusubramaniam L, Peng L, Zaitseva T, Paukshto M, Martin GR, Desai TA. Collagen fibril diameter and alignment promote the quiescent keratocyte phenotype. J Biomed Mater Res A 2011; 100:613-21. [PMID: 22213336 DOI: 10.1002/jbm.a.33284] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Accepted: 09/26/2011] [Indexed: 11/12/2022]
Abstract
In this study, we investigated how matrix nanotopography affects corneal fibroblast phenotype and matrix synthesis. To this end, corneal fibroblasts isolated from bovine corneas were grown on collagen nanofiber scaffolds of different diameters and alignment--30 nm aligned fibrils (30A), 300 nm or larger aligned fibrils (300A), and 30 nm nonaligned fibrils (30NA) in comparison with collagen coated flat glass substrates (FC). Cell morphology was visualized using confocal microscopy. Quantitative PCR was used to measure expression levels of six target genes: the corneal crystallin-transketolase (TKT), the myofibroblast marker-α-smooth muscle actin (SMA), and four matrix proteins-collagen 1 (COL1), collagen 3 (COL3), fibronectin (FN), and biglycan. It was found that SMA expression was down-regulated and TKT expression was increased on all three collagen nanofiber substrates, compared with the FC control substrates. However, COL3 and biglycan expression was also significantly increased on 300A, compared with the FC substrates. Thus matrix nanotopography down-regulates the fibrotic phenotype, promotes formation of the quiescent keratocyte phenotype, and influences matrix synthesis. These results have significant implications for the engineering of corneal replacements and for promoting regenerative healing of the cornea after disease and/or injury.
Collapse
Affiliation(s)
- Lalitha Muthusubramaniam
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, California 94158, USA
| | | | | | | | | | | |
Collapse
|
49
|
Furusawa K, Sato S, Masumoto JI, Hanazaki Y, Maki Y, Dobashi T, Yamamoto T, Fukui A, Sasaki N. Studies on the Formation Mechanism and the Structure of the Anisotropic Collagen Gel Prepared by Dialysis-Induced Anisotropic Gelation. Biomacromolecules 2011; 13:29-39. [DOI: 10.1021/bm200869p] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kazuya Furusawa
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo,
Hokkaido, Japan
| | - Shoichi Sato
- Transdisciplinary
Life Science
Course, Graduate School of Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido, Japan
| | - Jyun-ichi Masumoto
- Transdisciplinary
Life Science
Course, Graduate School of Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido, Japan
| | - Yohei Hanazaki
- Transdisciplinary
Life Science
Course, Graduate School of Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo, Hokkaido, Japan
| | - Yasuyuki Maki
- Department of Chemistry
and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - Toshiaki Dobashi
- Department of Chemistry
and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - Takao Yamamoto
- Department of Chemistry
and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjincho 1-5-1, Kiryu, Gunma, Japan
| | - Akimasa Fukui
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo,
Hokkaido, Japan
| | - Naoki Sasaki
- Faculty of Advanced Life Science, Hokkaido University, Kita-ku Kita 10 Nishi 8, Sapporo,
Hokkaido, Japan
| |
Collapse
|
50
|
Volkenstein S, Kirkwood JE, Lai E, Dazert S, Fuller GG, Heller S. Oriented collagen as a potential cochlear implant electrode surface coating to achieve directed neurite outgrowth. Eur Arch Otorhinolaryngol 2011; 269:1111-6. [PMID: 21952794 DOI: 10.1007/s00405-011-1775-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Accepted: 09/13/2011] [Indexed: 12/27/2022]
Abstract
In patients with severe to profound hearing loss, cochlear implants (CIs) are currently the only therapeutic option when the amplification with conventional hearing aids does no longer lead to a useful hearing experience. Despite its great success, there are patients in which benefit from these devices is rather limited. One reason may be a poor neuron-device interaction, where the electric fields generated by the electrode array excite a wide range of tonotopically organized spiral ganglion neurons at the cost of spatial resolution. Coating of CI electrodes to provide a welcoming environment combined with suitable surface chemistry (e.g. with neurotrophic factors) has been suggested to create a closer bioelectrical interface between the electrode array and the target tissue, which might lead to better spatial resolution, better frequency discrimination, and ultimately may improve speech perception in patients. Here we investigate the use of a collagen surface with a cholesteric banding structure, whose orientation can be systemically controlled as a guiding structure for neurite outgrowth. We demonstrate that spiral ganglion neurons survive on collagen-coated surfaces and display a directed neurite growth influenced by the direction of collagen fibril deposition. The majority of neurites grow parallel to the orientation direction of the collagen. We suggest collagen coating as a possible future option in CI technology to direct neurite outgrowth and improve hearing results for affected patients.
Collapse
Affiliation(s)
- Stefan Volkenstein
- Department of Otolaryngology, Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | | | | | | | | | | |
Collapse
|