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Yang P, Xie F, Zhu L, Selvaraj JN, Zhang D, Cai J. Fabrication of chitin-fibrin hydrogels to construct the 3D artificial extracellular matrix scaffold for vascular regeneration and cardiac tissue engineering. J Biomed Mater Res A 2024. [PMID: 39007419 DOI: 10.1002/jbm.a.37774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/07/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024]
Abstract
As the cornerstone of tissue engineering and regeneration medicine research, developing a cost-effective and bionic extracellular matrix (ECM) that can precisely modulate cellular behavior and form functional tissue remains challenging. An artificial ECM combining polysaccharides and fibrillar proteins to mimic the structure and composition of natural ECM provides a promising solution for cardiac tissue regeneration. In this study, we developed a bionic hydrogel scaffold by combining a quaternized β-chitin derivative (QC) and fibrin-matrigel (FM) in different ratios to mimic a natural ECM. We evaluated the stiffness of those composite hydrogels with different mixing ratios and their effects on the growth of human umbilical vein endothelial cells (HUVECs). The optimal hydrogels, QCFM1 hydrogels were further applied to load HUVECs into nude mice for in vivo angiogenesis. Besides, we encapsulated human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) into QCFM hydrogels and employed 3D bioprinting to achieve batch fabrication of human-engineered heart tissue (hEHT). Finally, the myocardial structure and electrophysiological function of hEHT were evaluated by immunofluorescence and optical mapping. Designed artificial ECM has a tunable modulus (220-1380 Pa), which determines the different cellular behavior of HUVECs when encapsulated in these. QCFM1 composite hydrogels with optimal stiffness (800 Pa) and porous architecture were finally identified, which could adapt for in vitro cell spreading and in vivo angiogenesis of HUVECs. Moreover, QCFM1 hydrogels were applied in 3D bioprinting successfully to achieve batch fabrication of both ring-shaped and patch-shaped hEHT. These QCFM1 hydrogels-based hEHTs possess organized sarcomeres and advanced function characteristics comparable to reported hEHTs. The chitin-derived hydrogels are first used for cardiac tissue engineering and achieve the batch fabrication of functionalized artificial myocardium. Specifically, these novel QCFM1 hydrogels provided a reliable and economical choice serving as ideal ECM for application in tissue engineering and regeneration medicine.
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Affiliation(s)
- Pengcheng Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, School of Life Science, Hubei University, Wuhan, China
| | - Fang Xie
- Hubei Engineering Center of Natural Polymers-based Medical Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China
- Institute of Hepatobiliary Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lihang Zhu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, School of Life Science, Hubei University, Wuhan, China
| | - Jonathan Nimal Selvaraj
- State Key Laboratory of Biocatalysis and Enzyme Engineering, National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, School of Life Science, Hubei University, Wuhan, China
| | - Donghui Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, School of Life Science, Hubei University, Wuhan, China
| | - Jie Cai
- Hubei Engineering Center of Natural Polymers-based Medical Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China
- Institute of Hepatobiliary Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
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2
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Ou K, Liu Y, Deng L, Chen S, Gu S, Wang B. Covalently grafting polycation to bacterial cellulose for antibacterial and anti-cell adhesive wound dressings. Int J Biol Macromol 2024; 269:132157. [PMID: 38723804 DOI: 10.1016/j.ijbiomac.2024.132157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/28/2023] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Hydrogel-based wound dressings are becoming increasingly important for wound healing. Bacterial cellulose (BC) has been commonly used as wound dressings due to its good in vitro and in vivo biocompatibility. However, pure BC does not possess antibacterial properties. In this regard, polycation gel was grafted onto the BC using a surface-initiated activator regenerated by electron transfer atom transfer radical polymerization (SI-ARGET ATRP) with subsequent quaternization for antibacterial wound dressing. Dimethylethyl methacrylate (DMAEMA) was successfully polymerized on the BC surface which was confirmed by Fourier transform infrared spectroscopy and elemental analysis. The morphology structure, specific surface area, pore size, and mechanical properties were also characterized. The quaternized PDMAEMA grafted on the BC endowed it with excellent antibacterial activity against E. coli (Gram-negative) and S. aureus (Gram-positive) with a killing rate of 89.2 % and 93.4 %, respectively. The number of cells was significantly reduced on QPD/BC hydrogel, demonstrating its good anti-adhesion ability. In vitro cellular evaluation revealed that the antibacterial wound dressing exhibited good biocompatibility. Overall, this study provides a feasible method to develop antibacterial and anti-cell adhesive hydrogel, which has a promising potential for wound healing.
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Affiliation(s)
- Kangkang Ou
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, PR China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China
| | - Yang Liu
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Lili Deng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China
| | - Shiyan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China.
| | - Song Gu
- Trauma Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, PR China.
| | - Baoxiu Wang
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China.
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3
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Yu Y, Liu H, Xu L, Hu P, Cui N, Long J, Wu X, Long D, Zhou Z. Reendothelialization of Acellular Adipose Flaps under Mimetic Physiological Dynamic Conditions. Tissue Eng Part A 2024. [PMID: 38562116 DOI: 10.1089/ten.tea.2023.0340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
The extensive soft-tissue defects resulting from trauma and tumors pose a prevalent challenge in clinical practice, characterized by a high incidence rate. Autologous tissue flap transplantation, considered the gold standard for treatment, is associated with various drawbacks, including the sacrifice of donor sources, postoperative complications, and limitations in surgical techniques, thereby impeding its widespread applicability. The emergence of tissue-engineered skin flaps, notably the acellular adipose flap (AAF), offers potential alternative solutions. However, a critical concern confronting large-scale tissue-engineered skin flaps currently revolves around the reendothelialization of internal vascular networks. In our study, we have developed an AAF utilizing perfusion decellularization, demonstrating excellent physical properties. Cytocompatibility experiments have confirmed its cellular safety, and cell adhesion experiments have revealed spatial specificity in facilitating endothelial cells adhesion within the adipose flap scaffold. Using a novel mimetic physiological fluid shear stress setting, endothelial cells were dynamically inoculated and cultured within the acellular vascular network of the pedicled AAF in our research. Histological and gene expression analyses have shown that the mimetic physiological fluid dynamic model significantly enhanced the reendothelialization of the AAF. This innovative platform of acellular adipose biomaterials combined with hydrodynamics may offer valuable insights for the design and manufacturing of 3D vascularized tissue constructs, which can be applied to the repair of extensive soft-tissue defects.
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Affiliation(s)
- Yaling Yu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Microsurgery on Extremities, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Liu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling Xu
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping Hu
- Department of Ophthalmology, Hunan University of Chinese Medicine, Changsha, China
| | - Ning Cui
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinyi Long
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xue Wu
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Da Long
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhengbing Zhou
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Guimaraes APP, Calori IR, Stilhano RS, Tedesco AC. Renal proximal tubule-on-a-chip in PDMS: fabrication, functionalization, and RPTEC:HUVEC co-culture evaluation. Biofabrication 2024; 16:025024. [PMID: 38408383 DOI: 10.1088/1758-5090/ad2d2f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/26/2024] [Indexed: 02/28/2024]
Abstract
'On-a-chip' technology advances the development of physiologically relevant organ-mimicking architecture by integrating human cells into three-dimensional microfluidic devices. This method also establishes discrete functional units, faciliting focused research on specific organ components. In this study, we detail the development and assessment of a convoluted renal proximal tubule-on-a-chip (PT-on-a-chip). This platform involves co-culturing Renal Proximal Tubule Epithelial Cells (RPTEC) and Human Umbilical Vein Endothelial Cells (HUVEC) within a polydimethylsiloxane microfluidic device, crafted through a combination of 3D printing and molding techniques. Our PT-on-a-chip significantly reduced high glucose level, exhibited albumin uptake, and simulated tubulopathy induced by amphotericin B. Remarkably, the RPTEC:HUVEC co-culture exhibited efficient cell adhesion within 30 min on microchannels functionalized with plasma, 3-aminopropyltriethoxysilane, and type-I collagen. This approach significantly reduced the required incubation time for medium perfusion. In comparison, alternative methods such as plasma and plasma plus polyvinyl alcohol were only effective in promoting cell attachment to flat surfaces. The PT-on-a-chip holds great promise as a valuable tool for assessing the nephrotoxic potential of new drug candidates, enhancing our understanding of drug interactions with co-cultured renal cells, and reducing the need for animal experimentation, promoting the safe and ethical development of new pharmaceuticals.
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Affiliation(s)
- Ana Paula Pereira Guimaraes
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, São Paulo, Ribeirão Preto 14040-901, Brazil
| | - Italo Rodrigo Calori
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, São Paulo, Ribeirão Preto 14040-901, Brazil
- Pharmaceutical Engineering and 3D Printing (PharmE3D) Labs, Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, Oxford, MS 38677, United States of America
| | - Roberta Sessa Stilhano
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, Brazil
| | - Antonio Claudio Tedesco
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, São Paulo, Ribeirão Preto 14040-901, Brazil
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5
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Cheng L, Yue H, Zhang H, Liu Q, Du L, Liu X, Xie J, Shen Y. The influence of microenvironment stiffness on endothelial cell fate: Implication for occurrence and progression of atherosclerosis. Life Sci 2023; 334:122233. [PMID: 37918628 DOI: 10.1016/j.lfs.2023.122233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Atherosclerosis, the primary cause of cardiovascular diseases (CVDs), is characterized by phenotypic changes in fibrous proliferation, chronic inflammation and lipid accumulation mediated by vascular endothelial cells (ECs) and vascular smooth muscle cells (SMCs) which are correlated with the stiffening and ectopic remodeling of local extracellular matrix (ECM). The native residents, ECs and SMCs, are not only affected by various chemical factors including inflammatory mediators and chemokines, but also by a range of physical stimuli, such as shear stress and ECM stiffness, presented in the microenvironmental niche. Especially, ECs, as a semi-selective barrier, can sense mechanical forces, respond quickly to changes in mechanical loading and provide context-specific adaptive responses to restore homeostasis. However, blood arteries undergo stiffening and lose their elasticity with age. Reports have shown that the ECM stiffening could influence EC fate by changing the cell adhesion, spreading, proliferation, cell to cell contact, migration and even communication with SMCs. The cell behaviour changes mediated by ECM stiffening are dependent on the activation of a signaling cascade of mechanoperception and mechanotransduction. Although the substantial evidence directly indicates the importance of ECM stiffening on the native ECs, the understanding about this complex interplay is still largely limited. In this review, we systematically summarize the roles of ECM stiffening on the behaviours of endothelial cells and elucidate the underlying details in biological mechanism, aiming to provide the process of how ECs integrate ECM mechanics and the highlights for bioaffinity of tissue-specific engineered scaffolds.
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Affiliation(s)
- Lin Cheng
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Hongyan Yue
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Huaiyi Zhang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Qiao Liu
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Lingyu Du
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Xiaoheng Liu
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yang Shen
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China; JinFeng Laboratory, Chongqing 401329, China.
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6
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Ryan CN, Pugliese E, Shologu N, Gaspar D, Rooney P, Islam MN, O'Riordan A, Biggs MJ, Griffin MD, Zeugolis DI. Physicochemical cues are not potent regulators of human dermal fibroblast trans-differentiation. BIOMATERIALS AND BIOSYSTEMS 2023; 11:100079. [PMID: 37720487 PMCID: PMC10499661 DOI: 10.1016/j.bbiosy.2023.100079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 04/25/2023] [Accepted: 05/29/2023] [Indexed: 09/19/2023] Open
Abstract
Due to their inherent plasticity, dermal fibroblasts hold great promise in regenerative medicine. Although biological signals have been well-established as potent regulators of dermal fibroblast function, it is still unclear whether physiochemical cues can induce dermal fibroblast trans-differentiation. Herein, we evaluated the combined effect of surface topography, substrate rigidity, collagen type I coating and macromolecular crowding in human dermal fibroblast cultures. Our data indicate that tissue culture plastic and collagen type I coating increased cell proliferation and metabolic activity. None of the assessed in vitro microenvironment modulators affected cell viability. Anisotropic surface topography induced bidirectional cell morphology, especially on more rigid (1,000 kPa and 130 kPa) substrates. Macromolecular crowding increased various collagen types, but not fibronectin, deposition. Macromolecular crowding induced globular extracellular matrix deposition, independently of the properties of the substrate. At day 14 (longest time point assessed), macromolecular crowding downregulated tenascin C (in 9 out of the 14 groups), aggrecan (in 13 out of the 14 groups), osteonectin (in 13 out of the 14 groups), and collagen type I (in all groups). Overall, our data suggest that physicochemical cues (such surface topography, substrate rigidity, collagen coating and macromolecular crowding) are not as potent as biological signals in inducing dermal fibroblast trans-differentiation.
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Affiliation(s)
- Christina N.M. Ryan
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Eugenia Pugliese
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Naledi Shologu
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Diana Gaspar
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Peadar Rooney
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Md Nahidul Islam
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, University of Galway, Galway, Ireland
- Discipline of Biochemistry, School of Natural Sciences, University of Galway, Galway, Ireland
| | - Alan O'Riordan
- Tyndall National Institute, University College Cork (UCC), Cork, Ireland
| | - Manus J. Biggs
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Matthew D. Griffin
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Dimitrios I. Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Charles Institute of Dermatology, Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering, University College Dublin (UCD), Dublin, Ireland
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7
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Yu F, Wang K, Li H, Peng L. Superhydrophobic and ethylene scavenging paper doped with halloysite nanotubes for food packaging applications. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Ryan CNM, Pugliese E, Shologu N, Gaspar D, Rooney P, Islam MN, O'Riordan A, Biggs MJ, Griffin MD, Zeugolis DI. The synergistic effect of physicochemical in vitro microenvironment modulators in human bone marrow stem cell cultures. BIOMATERIALS ADVANCES 2022; 144:213196. [PMID: 36455498 DOI: 10.1016/j.bioadv.2022.213196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/29/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Modern bioengineering utilises biomimetic cell culture approaches to control cell fate during in vitro expansion. In this spirit, herein we assessed the influence of bidirectional surface topography, substrate rigidity, collagen type I coating and macromolecular crowding (MMC) in human bone marrow stem cell cultures. In the absence of MMC, surface topography was a strong modulator of cell morphology. MMC significantly increased extracellular matrix deposition, albeit in a globular manner, independently of the surface topography, substrate rigidity and collagen type I coating. Collagen type I coating significantly increased cell metabolic activity and none of the assessed parameters affected cell viability. At day 14, in the absence of MMC, none of the assessed genes was affected by surface topography, substrate rigidity and collagen type I coating, whilst in the presence of MMC, in general, collagen type I α1 chain, tenascin C, osteonectin, bone sialoprotein, aggrecan, cartilage oligomeric protein and runt-related transcription factor were downregulated. Interestingly, in the presence of the MMC, the 1000 kPa grooved substrate without collagen type I coating upregulated aggrecan, cartilage oligomeric protein, scleraxis homolog A, tenomodulin and thrombospondin 4, indicative of tenogenic differentiation. This study further supports the notion for multifactorial bioengineering to control cell fate in culture.
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Affiliation(s)
- Christina N M Ryan
- Regenerative, Modular & 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
| | - Eugenia Pugliese
- Regenerative, Modular & 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 & 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
| | - Diana Gaspar
- Regenerative, Modular & 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
| | - Peadar Rooney
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Md Nahidul Islam
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Discipline of Biochemistry, School of Natural Sciences, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Alan O'Riordan
- Tyndall National Institute, University College Cork (UCC), Cork, Ireland
| | - Manus J Biggs
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Matthew D Griffin
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & 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; Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Charles Institute of Dermatology, Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering, University College Dublin (UCD), Dublin, Ireland.
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9
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Paudel SS, deWeever A, Sayner S, Stevens T, Tambe DT. Substrate stiffness modulates migration and local intercellular membrane motion in pulmonary endothelial cell monolayers. Am J Physiol Cell Physiol 2022; 323:C936-C949. [PMID: 35912996 PMCID: PMC9467474 DOI: 10.1152/ajpcell.00339.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 11/22/2022]
Abstract
The pulmonary artery endothelium forms a semipermeable barrier that limits macromolecular flux through intercellular junctions. This barrier is maintained by an intrinsic forward protrusion of the interacting membranes between adjacent cells. However, the dynamic interactions of these membranes have been incompletely quantified. Here, we present a novel technique to quantify the motion of the peripheral membrane of the cells, called paracellular morphological fluctuations (PMFs), and to assess the impact of substrate stiffness on PMFs. Substrate stiffness impacted large-length scale morphological changes such as cell size and motion. Cell size was larger on stiffer substrates, whereas the speed of cell movement was decreased on hydrogels with stiffness either larger or smaller than 1.25 kPa, consistent with cells approaching a jammed state. Pulmonary artery endothelial cells moved fastest on 1.25 kPa hydrogel, a stiffness consistent with a healthy pulmonary artery. Unlike these large-length scale morphological changes, the baseline of PMFs was largely insensitive to the substrate stiffness on which the cells were cultured. Activation of store-operated calcium channels using thapsigargin treatment triggered a transient increase in PMFs beyond the control treatment. However, in hypocalcemic conditions, such an increase in PMFs was absent on 1.25 kPa hydrogel but was present on 30 kPa hydrogel-a stiffness consistent with that of a hypertensive pulmonary artery. These findings indicate that 1) PMFs occur in cultured endothelial cell clusters, irrespective of the substrate stiffness; 2) PMFs increase in response to calcium influx through store-operated calcium entry channels; and 3) stiffer substrate promotes PMFs through a mechanism that does not require calcium influx.
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Affiliation(s)
- Sunita Subedi Paudel
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama
- Department of Mechanical Aerospace and Biomedical Engineering, University of South Alabama, Mobile, Alabama
- Center for Lung Biology, University of South Alabama, Mobile, Alabama
| | - Althea deWeever
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama
- Center for Lung Biology, University of South Alabama, Mobile, Alabama
| | - Sarah Sayner
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama
- Center for Lung Biology, University of South Alabama, Mobile, Alabama
| | - Troy Stevens
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama
- Department of Internal Medicine, University of South Alabama, Mobile, Alabama
- Department of Mechanical Aerospace and Biomedical Engineering, University of South Alabama, Mobile, Alabama
| | - Dhananjay T Tambe
- Department of Mechanical Aerospace and Biomedical Engineering, University of South Alabama, Mobile, Alabama
- Department of Pharmacology, University of South Alabama, Mobile, Alabama
- Center for Lung Biology, University of South Alabama, Mobile, Alabama
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10
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Rhodes ADY, Duran-Mota JA, Oliva N. Current progress in bionanomaterials to modulate the epigenome. Biomater Sci 2022; 10:5081-5091. [PMID: 35880652 DOI: 10.1039/d2bm01027e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent advances in genomics during the 1990s have made it possible to study and identify genetic and epigenetic responses of cells and tissues to various drugs and environmental factors. This has accelerated the number of targets available to treat a range of diseases from cancer to wound healing disorders. Equally interesting is the understanding of how bio- and nanomaterials alter gene expression through epigenetic mechanisms, and whether they have the potential to elicit a positive therapeutic response without requiring additional biomolecule delivery. In fact, from a cell's perspective, a biomaterial is nothing more than an environmental factor, and so it has the power to epigenetically modulate gene expression of cells in contact with it. Understanding these epigenetic interactions between biomaterials and cells will open new avenues in the development of technologies that can not only provide biological signals (i.e. drugs, growth factors) necessary for therapy and regeneration, but also intimately interact with cells to promote the expression of genes of interest. This review article aims to summarise the current state-of-the-art and progress on the development of bio- and nanomaterials to modulate the epigenome.
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Affiliation(s)
- Anna D Y Rhodes
- Department of Bioengineering, Imperial College London, London W12 0BZ, UK.
| | - Jose Antonio Duran-Mota
- Department of Bioengineering, Imperial College London, London W12 0BZ, UK. .,Materials Engineering Group (GEMAT), IQS Barcelona, Barcelona 08017, Spain
| | - Nuria Oliva
- Department of Bioengineering, Imperial College London, London W12 0BZ, UK.
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Verma G, Sheshkar N, Pandey C, Gupta A. Recent trends of silicon elastomer-based nanocomposites and their sensing applications. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03044-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Lin TH, Toai PTD, Tinh NT, Phat LN, Huong LM, Viet ND, Dat NM, Nam HM, Phong MT, Hieu NH. Fabrication of ceramic tube‐supported tetraethyl‐orthosilicate cross‐linked polydimethylsiloxane membranes for separation of furfural–water mixture by pervaporation technology. J Appl Polym Sci 2022. [DOI: 10.1002/app.52380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tong Hoang Lin
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Phan Thi Danh Toai
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Ninh Thi Tinh
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - La Nam Phat
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Le Minh Huong
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Nguyen Duc Viet
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Nguyen Minh Dat
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Hoàng Minh Nam
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Mai Thanh Phong
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
| | - Nguyen Huu Hieu
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh City Vietnam
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13
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Mahbub R, Callcott E, Rao S, Ansari O, Waters DL, Blanchard CL, Santhakumar AB. The effect of selected hemp seed protein hydrolysates in modulating vascular function. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2021.101504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Williams AH, Hebert AM, Boehm RC, Huddleston ME, Jenkins MR, Velev OD, Nelson MT. Bioscaffold Stiffness Mediates Aerosolized Nanoparticle Uptake in Lung Epithelial Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50643-50656. [PMID: 34668373 DOI: 10.1021/acsami.1c09701] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, highly porous, ultrasoft polymeric mats mimicking human tissues were formed from novel polyurethane soft dendritic colloids (PU SDCs). PU SDCs have a unique fibrillar morphology controlled by antisolvent precipitation. When filtered from suspension, PU SDCs form mechanically robust nonwoven mats. The stiffness of the SDC mats can be tuned for physiological relevance. The unique physiochemical characteristics of the PU SDC particles dictate the mechanical properties resulting in tunable elastic moduli ranging from 200 to 800 kPa. The human lung A549 cells cultured on both stiff and soft PU SDC membranes were found to be viable, capable of supporting the air-liquid interface (ALI) cell culture, and maintained barrier integrity. Furthermore, A549 cellular viability and uptake efficiency of aerosolized tannic acid-coated gold nanoparticles (Ta-Au) was found to depend on elastic modulus and culture conditions. Ta-Au nanoparticle uptake was twofold and fourfold greater on soft PU SDCs, when cultured at submerged and ALI conditions, respectively. The significant increase in endocytosed Ta-Au resulted in a 20% decrease in viability, and a 4-fold increase in IL-8 cytokine secretion when cultured on soft PU SDCs at ALI. Common tissue culture materials exhibit super-physiological elastic moduli, a factor found to be critical in analyzing nanomaterial cellular interactions and biological responses.
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Affiliation(s)
- Austin H Williams
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Adrien M Hebert
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
| | - Robert C Boehm
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
| | - Mary E Huddleston
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
- UES, Inc., Dayton, Ohio 45432, United States
| | - Meghan R Jenkins
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
- UES, Inc., Dayton, Ohio 45432, United States
| | - Orlin D Velev
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - M Tyler Nelson
- Air Force Research Laboratory, 711th Human Performance Wing, Wright-Patterson AFB, Ohio 45433, United States
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López-Lugo JD, Pimentel-Domínguez R, Benítez-Martínez JA, Hernández-Cordero J, Vélez-Cordero JR, Sánchez-Arévalo FM. Photomechanical Polymer Nanocomposites for Drug Delivery Devices. Molecules 2021; 26:molecules26175376. [PMID: 34500809 PMCID: PMC8433747 DOI: 10.3390/molecules26175376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
We demonstrate a novel structure based on smart carbon nanocomposites intended for fabricating laser-triggered drug delivery devices (DDDs). The performance of the devices relies on nanocomposites' photothermal effects that are based on polydimethylsiloxane (PDMS) with carbon nanoparticles (CNPs). Upon evaluating the main features of the nanocomposites through physicochemical and photomechanical characterizations, we identified the main photomechanical features to be considered for selecting a nanocomposite for the DDDs. The capabilities of the PDMS/CNPs prototypes for drug delivery were tested using rhodamine-B (Rh-B) as a marker solution, allowing for visualizing and quantifying the release of the marker contained within the device. Our results showed that the DDDs readily expel the Rh-B from the reservoir upon laser irradiation and the amount of released Rh-B depends on the exposure time. Additionally, we identified two main Rh-B release mechanisms, the first one is based on the device elastic deformation and the second one is based on bubble generation and its expansion into the device. Both mechanisms were further elucidated through numerical simulations and compared with the experimental results. These promising results demonstrate that an inexpensive nanocomposite such as PDMS/CNPs can serve as a foundation for novel DDDs with spatial and temporal release control through laser irradiation.
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Affiliation(s)
- Jonathan David López-Lugo
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal 70-360, Cd. Universitaria, México 04510, Mexico; (J.D.L.-L.); (R.P.-D.); (J.A.B.-M.); (J.H.-C.)
| | - Reinher Pimentel-Domínguez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal 70-360, Cd. Universitaria, México 04510, Mexico; (J.D.L.-L.); (R.P.-D.); (J.A.B.-M.); (J.H.-C.)
| | - Jorge Alejandro Benítez-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal 70-360, Cd. Universitaria, México 04510, Mexico; (J.D.L.-L.); (R.P.-D.); (J.A.B.-M.); (J.H.-C.)
| | - Juan Hernández-Cordero
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal 70-360, Cd. Universitaria, México 04510, Mexico; (J.D.L.-L.); (R.P.-D.); (J.A.B.-M.); (J.H.-C.)
| | - Juan Rodrigo Vélez-Cordero
- Cátedras CONACyT-Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, Mexico;
| | - Francisco Manuel Sánchez-Arévalo
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. Postal 70-360, Cd. Universitaria, México 04510, Mexico; (J.D.L.-L.); (R.P.-D.); (J.A.B.-M.); (J.H.-C.)
- Correspondence:
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Ryan C, Pugliese E, Shologu N, Gaspar D, Rooney P, Islam MN, O'Riordan A, Biggs M, Griffin M, Zeugolis D. A combined physicochemical approach towards human tenocyte phenotype maintenance. Mater Today Bio 2021; 12:100130. [PMID: 34632361 PMCID: PMC8488312 DOI: 10.1016/j.mtbio.2021.100130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 02/08/2023] Open
Abstract
During in vitro culture, bereft of their optimal tissue context, tenocytes lose their phenotype and function. Considering that tenocytes in their native tissue milieu are exposed simultaneously to manifold signals, combination approaches (e.g. growth factor supplementation and mechanical stimulation) are continuously gaining pace to control cell fate during in vitro expansion, albeit with limited success due to the literally infinite number of possible permutations. In this work, we assessed the potential of scalable and potent physicochemical approaches that control cell fate (substrate stiffness, anisotropic surface topography, collagen type I coating) and enhance extracellular matrix deposition (macromolecular crowding) in maintaining human tenocyte phenotype in culture. Cell morphology was primarily responsive to surface topography. The tissue culture plastic induced the largest nuclei area, the lowest aspect ratio, and the highest focal adhesion kinase. Collagen type I coating increased cell number and metabolic activity. Cell viability was not affected by any of the variables assessed. Macromolecular crowding intensely enhanced and accelerated native extracellular matrix deposition, albeit not in an aligned fashion, even on the grooved substrates. Gene analysis at day 14 revealed that the 130 kPa grooved substrate without collagen type I coating and under macromolecular crowding conditions positively regulated human tenocyte phenotype. Collectively, this work illustrates the beneficial effects of combined physicochemical approaches in controlling cell fate during in vitro expansion.
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Affiliation(s)
- C.N.M. Ryan
- Regenerative, Modular & 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
| | - E. Pugliese
- Regenerative, Modular & 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
| | - N. Shologu
- Regenerative, Modular & 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
| | - D. Gaspar
- Regenerative, Modular & 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
| | - P. Rooney
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Md N. Islam
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Discipline of Biochemistry, School of Natural Sciences, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - A. O'Riordan
- Tyndall National Institute, University College Cork (UCC), Cork, Ireland
| | - M.J. Biggs
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - M.D. Griffin
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - D.I. Zeugolis
- Regenerative, Modular & 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
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Charles Institute of Dermatology, Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering, University College Dublin (UCD), Dublin, Ireland
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18
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Guixé-Muntet S, Ortega-Ribera M, Wang C, Selicean S, Andreu I, Kechagia JZ, Fondevila C, Roca-Cusachs P, Dufour JF, Bosch J, Berzigotti A, Gracia-Sancho J. Nuclear deformation mediates liver cell mechanosensing in cirrhosis. JHEP Rep 2020; 2:100145. [PMID: 32939447 PMCID: PMC7479345 DOI: 10.1016/j.jhepr.2020.100145] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND & AIMS Liver stiffness is increased in advanced chronic liver disease (ACLD) and accurately predicts prognosis in this population. Recent data suggest that extracellular matrix stiffness per se may modulate the phenotype of liver cells. We aimed at investigating the effect of matrix stiffness on the phenotype of liver cells of rats with cirrhosis, assessing its influence on their response to antifibrotic strategies and evaluating associated molecular mechanisms. METHODS Hepatocytes, hepatic stellate cells, and liver sinusoidal endothelial cells were isolated from healthy rats or rats with cirrhosis (carbon tetrachloride or thioacetamide), and cultured on polyacrylamide gels with different physiologically relevant stiffness for 72 h. RESULTS All cell types of rats with cirrhosis cultured at low stiffness showed a significant phenotype amelioration vs. rigid matrix (assessed by quantitative morphology, mRNA expression, protein synthesis, and electron microscopy imaging). Additionally, stiffness modified the antifibrotic effects of liraglutide in stellate cells of rats with cirrhosis. Finally, evaluation of nuclear morphology revealed that high stiffness induced nuclei deformation in all cell types, an observation confirmed in cells from human livers. Disconnecting the nucleus from the cytoskeleton by cytoskeleton disruption or a defective form of nesprin 1 significantly recovered spherical nuclear shape and quiescent phenotype of cells. CONCLUSIONS The environment's stiffness per se modulates the phenotype of healthy rats and liver cells of rats with cirrhosis by altering the nuclear morphology through cytoskeleton-derived mechanical forces. The reversibility of this mechanism suggests that targeting the stiffness-mediated intracellular mechanical tensions may represent a novel therapeutic strategy for ACLD. LAY SUMMARY During cirrhosis, the liver becomes scarred, stiff, and unable to perform its normal functions efficiently. In this study, we demonstrated that cells from diseased (stiff) livers recovered their functionality when placed in a soft environment (as that of a healthy liver). Furthermore, treatments aimed at tricking liver cells into believing they are in a healthy, soft liver improved their function and could potentially contribute to treat cirrhosis.
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Key Words
- ACLD, advanced chronic liver disease
- Cd, cytoskeleton disruptor
- Chronic liver disease
- DN-KASH, dominant negative nesprin peptide containing a KASH domain
- ECM, extracellular matrix
- HNF4α, hepatocyte nuclear factor 4α
- HSC
- HSC, hepatic stellate cell
- Hepatocyte
- KASH, Klarsicht/abnormal nuclear anchorage-1/Syne homology
- LSEC
- LSEC, liver sinusoidal endothelial cell
- Lamb1, laminin b1
- Stiffness
- TAA, thioacetamide
- eNOS, endothelial nitric oxide synthase
- α-SMA, α-smooth muscle actin
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Affiliation(s)
- Sergi Guixé-Muntet
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Martí Ortega-Ribera
- Liver Vascular Biology Research Group, Hepatic Hemodynamic Laboratory, IDIBAPS Biomedical Research Institute, CIBEREHD, Barcelona, Spain
| | - Cong Wang
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Sonia Selicean
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Ion Andreu
- Institute for Bioengineering of Catalonia, Barcelona Institute of Technology, University of Barcelona, Barcelona, Spain
| | - Jenny Z. Kechagia
- Institute for Bioengineering of Catalonia, Barcelona Institute of Technology, University of Barcelona, Barcelona, Spain
| | | | - Pere Roca-Cusachs
- Institute for Bioengineering of Catalonia, Barcelona Institute of Technology, University of Barcelona, Barcelona, Spain
| | - Jean-François Dufour
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Hepatology, University Clinic for Visceral Surgery and Medicine, Inselspital, Bern, Switzerland
| | - Jaime Bosch
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Liver Vascular Biology Research Group, Hepatic Hemodynamic Laboratory, IDIBAPS Biomedical Research Institute, CIBEREHD, Barcelona, Spain
- Hepatology, University Clinic for Visceral Surgery and Medicine, Inselspital, Bern, Switzerland
| | - Annalisa Berzigotti
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Hepatology, University Clinic for Visceral Surgery and Medicine, Inselspital, Bern, Switzerland
| | - Jordi Gracia-Sancho
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Liver Vascular Biology Research Group, Hepatic Hemodynamic Laboratory, IDIBAPS Biomedical Research Institute, CIBEREHD, Barcelona, Spain
- Hepatology, University Clinic for Visceral Surgery and Medicine, Inselspital, Bern, Switzerland
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Zakharova M, Palma do Carmo MA, van der Helm MW, Le-The H, de Graaf MNS, Orlova V, van den Berg A, van der Meer AD, Broersen K, Segerink LI. Multiplexed blood-brain barrier organ-on-chip. LAB ON A CHIP 2020; 20:3132-3143. [PMID: 32756644 DOI: 10.1039/d0lc00399a] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Organ-on-chip devices are intensively studied in academia and industry due to their high potential in pharmaceutical and biomedical applications. However, most of the existing organ-on-chip models focus on proof of concept of individual functional units without the possibility of testing multiple experimental stimuli in parallel. Here we developed a polydimethylsiloxane (PDMS) multiplexed chip with eight parallel channels branching from a common access port through which all eight channels can be addressed simultaneously without the need for extra pipetting steps thus increasing the reproducibility of the experimental results. At the same time, eight outlets provide individual entry to each channel with the opportunity to create eight different experimental conditions. A multiplexed chip can be assembled as a one-layer device for studying monocultures or as a two-layer device for studying barrier tissue functions. For a two-layer device, a ∼2 μm thick transparent PDMS membrane with 5 μm through-hole pores was fabricated in-house using a soft lithography technique, thereby allowing visual inspection of the cell-culture in real-time. The functionality of the chip was studied by recapitulating the blood-brain barrier. For this, human cerebral microvascular endothelial cells (hCMEC/D3) were cultured in mono- or coculture with human astrocytes. Immunostaining revealed a cellular monolayer with the expression of tight junction ZO-1 and adherence junction VE-cadherin proteins in endothelial cells as well as glial fibrillary acidic protein (GFAP) expression in astrocytes. Furthermore, multiplexed permeability studies of molecule passage through the cellular barrier exhibited expected high permeability coefficients for smaller molecules (4 kDa FITC-dextran) whereas larger molecules (20 kDa) crossed the barrier at a lower rate. With these results, we show that our device can be used as an organ-on-chip model for future multiplexed drug testing.
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Affiliation(s)
- M Zakharova
- BIOS Lab on a Chip group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands.
| | - M A Palma do Carmo
- BIOS Lab on a Chip group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands.
| | - M W van der Helm
- BIOS Lab on a Chip group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands.
| | - H Le-The
- BIOS Lab on a Chip group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands. and Physics of Fluids, MESA+ Institute for Nanotechnology, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands
| | - M N S de Graaf
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - V Orlova
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - A van den Berg
- BIOS Lab on a Chip group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands.
| | - A D van der Meer
- Applied Stem Cell Technologies, Technical Medical Centre, University of Twente, The Netherlands
| | - K Broersen
- Applied Stem Cell Technologies, Technical Medical Centre, University of Twente, The Netherlands
| | - L I Segerink
- BIOS Lab on a Chip group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, The Netherlands.
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Dikici S, Claeyssens F, MacNeil S. Pre-Seeding of Simple Electrospun Scaffolds with a Combination of Endothelial Cells and Fibroblasts Strongly Promotes Angiogenesis. Tissue Eng Regen Med 2020; 17:445-458. [PMID: 32447555 PMCID: PMC7392995 DOI: 10.1007/s13770-020-00263-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/14/2020] [Accepted: 04/08/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Introduction of pro-angiogenic cells into tissue-engineered (TE) constructs (prevascularisation) is a promising approach to overcome delayed neovascularisation of such constructs post-implantation. Accordingly, in this study, we examined the contribution of human dermal microvascular endothelial cells (HDMECs) and human dermal fibroblasts (HDFs) alone and in combination on the formation of new blood vessels in ex-ovo chick chorioallantoic membrane (CAM) assay. METHODS Poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) and polycaprolactone (PCL) were first examined in terms of their physical, mechanical, and biological performances. The effect of gelatin coating and co-culture conditions on enhancing endothelial cell viability and growth was then investigated. Finally, the angiogenic potential of HDMECs and HDFs were assessed macroscopically and histologically after seeding on simple electrospun PHBV scaffolds either in isolation or in indirect co-culture using an ex-ovo CAM assay. RESULTS The results demonstrated that PHBV was slightly more favourable than PCL for HDMECs in terms of cell metabolic activity. The gelatin coating of PHBV scaffolds and co-culture of HDMECs with HDFs both showed a positive impact on HDMECs viability and growth. Both cell types induced angiogenesis over 7 days in the CAM assay either in isolation or in co-culture. The introduction of HDMECs to the scaffolds resulted in the production of more blood vessels in the area of implantation than the introduction of HDFs, but the co-culture of HDMECs and HDFs gave the most significant angiogenic activity. CONCLUSION Our findings showed that the in vitro prevascularisation of TE constructs with HDMECs and HDFs alone or in co-culture promotes angiogenesis in implantable TE constructs.
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Affiliation(s)
- Serkan Dikici
- Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, North Campus Broad Lane, Sheffield, S3 7HQ, UK
| | - Frederik Claeyssens
- Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, North Campus Broad Lane, Sheffield, S3 7HQ, UK
| | - Sheila MacNeil
- Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, North Campus Broad Lane, Sheffield, S3 7HQ, UK.
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21
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Vandaele J, Louis B, Liu K, Camacho R, Kouwer PHJ, Rocha S. Structural characterization of fibrous synthetic hydrogels using fluorescence microscopy. SOFT MATTER 2020; 16:4210-4219. [PMID: 32292943 DOI: 10.1039/c9sm01828j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The structural features of the matrix surrounding the cells play a crucial role in regulating their behavior. Here, we used fluorescence microscopy and customized analysis algorithms to characterize the architecture of fibrous hydrogel networks. As a model system, we investigated a new class of synthetic biomimetic material, hydrogels prepared from polyisocyanides. Our results show that these synthetic gels present a highly heterogeneous fibrous network, with pores reaching a few micrometers in diameter. By encapsulating HeLa cells in different hydrogels, we show that a more porous structure is linked to a higher proliferation rate. The approach described here, for the characterization of the network of fibrous hydrogels, can be easily applied to other polymer-based materials and provide new insights into the influence of structural features in cell behavior. This knowledge is crucial to develop the next generation of biomimetic materials for 3D cell models and tissue engineering applications.
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22
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Matrix stiffening induces endothelial dysfunction via the TRPV4/microRNA-6740/endothelin-1 mechanotransduction pathway. Acta Biomater 2019; 100:52-60. [PMID: 31606530 DOI: 10.1016/j.actbio.2019.10.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/16/2019] [Accepted: 10/04/2019] [Indexed: 11/22/2022]
Abstract
Vascular stiffening is associated with the prognosis of cardiovascular disease (CVD). Endothelial dysfunction, as shown by reduced vasodilation and increased vasoconstriction, not only affects vascular tone, but also accelerates the progression of CVD. However, the precise effect of vascular stiffening on endothelial function and its mechanism is unclear and a possible underlying has not been determined. In this study, we found that increasing substrate stiffness promoted endothelin-1 (ET-1) expression and inhibited endothelial nitric oxide synthase expression in human umbilical vein endothelial cells. Additionally, miR-6740-5p was identified as a stiffness-sensitive microRNA, which was downregulated by a stiff substrate, resulting in increased ET-1 expression. Furthermore, we found that substrate stiffening reduced the expression and activity of the calcium channel TRPV4, which subsequently enhanced ET-1 expression by inhibiting miR-6740-5p. Finally, analysis of clinical plasma samples showed that plasma miR-6740-5p levels in patients with carotid atherosclerosis were significantly lower than those in healthy people. Taken together, our findings show a novel mechanically regulated TRPV4/miR-6740/ET-1 signaling axis by which substrate stiffness affects endothelial function. Our findings indicate that vascular stiffening induces endothelial dysfunction, thereby accelerating progression of CVD. Furthermore, this study indicates that endothelial dysfunction induced by improper biophysical cues from cardiovascular implants may be an important reason for complications arising from the use of cardiovascular implants. STATEMENT OF SIGNIFICANCE: Cardiovascular disease is the leading cause of morbidity and mortality worldwide. The incidence of cardiovascular disease is accompanied by increased vascular stiffness. Our work indicated that increased vascular stiffness accelerates the development of cardiovascular disease by inducing endothelial dysfunction, which is a key contributor to the pathogenesis of cardiovascular disease. In addition, we identified a novel underlying molecular pathophysiological mechanism by which increased stiffness induce endothelial dysfunction. Our work could help determine the pathogenesis of cardiovascular disease induced by biomechanical factors.
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23
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Chen R, Li L, Feng L, Luo Y, Xu M, Leong KW, Yao R. Biomaterial-assisted scalable cell production for cell therapy. Biomaterials 2019; 230:119627. [PMID: 31767445 DOI: 10.1016/j.biomaterials.2019.119627] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 11/01/2019] [Accepted: 11/11/2019] [Indexed: 12/24/2022]
Abstract
Cell therapy, the treatment of diseases using living cells, offers a promising clinical approach to treating refractory diseases. The global market for cell therapy is growing rapidly, and there is an increasing demand for automated methods that can produce large quantities of high quality therapeutic cells. Biomaterials can be used during cell production to establish a biomimetic microenvironment that promotes cell adhesion and proliferation while maintaining target cell genotype and phenotype. Here we review recent progress and emerging techniques in biomaterial-assisted cell production. The increasing use of auxiliary biomaterials and automated production methods provides an opportunity to improve quality control and increase production efficiency using standardized GMP-compliant procedures.
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Affiliation(s)
- Ruoyu Chen
- Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Ling Li
- Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Lu Feng
- Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yixue Luo
- Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Mingen Xu
- Key Laboratory of Medical Information and 3D Bioprinting of Zhejiang Province, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Rui Yao
- Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
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24
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Sun X, Tung W, Zou J, Wang W, Kratz K, Ma N, Lendlein A. Elasticity of fiber meshes from multiblock copolymers influences endothelial cell behavior. Clin Hemorheol Microcirc 2019; 74:405-415. [PMID: 31683471 DOI: 10.3233/ch-190696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The behavior of endothelial cells is remarkably influenced by the physical and biochemical signals from their surrounding microenvironments. OBJECTIVE Here, the elasticity of fiber meshes was studied as a design parameter of substrates for endothelial cells in order to modulate angiogenesis. METHODS Human umbilical vein endothelial cells (HUVECs) were cultured on electrospun fiber meshes made from polyetheresterurethane (PEEU), differing in their elasticity. Cell morphology, proliferation, migration and angiogenesis of endothelial cells on the degradable substrate meshes were characterized. RESULTS The aspect ratio of HUVECs cultured on the fiber meshes from PEEU materials increased with increasing stiffness of the materials. HUVECs cultured on fiber meshes with high stiffness (Young's modulus E = 4.5±0.8 MPa) presented a higher proliferation rate and significantly faster migration velocity, as well as higher tube formation capability than the cells cultured on fiber meshes with low stiffness (E = 2.6±0.8 MPa). CONCLUSIONS These results suggested that tuning the fiber meshes' elasticity might be a potential strategy for modulating the formation or regeneration of blood vessels.
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Affiliation(s)
- Xianlei Sun
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Wingtai Tung
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Jie Zou
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Free University of Berlin, Berlin, Germany
| | - Weiwei Wang
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Karl Kratz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Nan Ma
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry and Biochemistry, Free University of Berlin, Berlin, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany.,Institute of Chemistry and Biochemistry, Free University of Berlin, Berlin, Germany
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25
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Rao S, Chinkwo K, Santhakumar A, Johnson S, Blanchard C. Apoptosis Induction Pathway in Human Colorectal Cancer Cell Line SW480 Exposed to Cereal Phenolic Extracts. Molecules 2019; 24:E2465. [PMID: 31277499 PMCID: PMC6651285 DOI: 10.3390/molecules24132465] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/28/2019] [Accepted: 07/02/2019] [Indexed: 01/29/2023] Open
Abstract
Cereal phenolic extracts have previously been investigated for their potential anticancer properties; however, the exact mechanisms involved in the inhibition of tumour growth are unclear. One possible mechanism is the induction of apoptosis which is characterised by cell shrinkage, protein fragmentation, and DNA degradation followed by rapid engulfment of cell debris by macrophages. This study examines the ability of phenolic extracts from four cereals: rice, barley, oats and sorghum to induce apoptosis on colorectal cancer cells SW480. Wholegrain extracts from pigmented varieties of red rice, purple rice, black sorghum, and brown sorghum showed a significant reduction in cancer cell proliferation. Morphological observation using APOPercentage™ dye indicated positive for apoptosis. Further analyses of Yunlu29 (rice), Shawaya Short Black 1 and IS1136 (sorghum) showed expression of p53 and confirmed activation of multiple caspases, specifically for caspase 3 and 7. Purple rice, on the other hand, did not upregulate caspase 3 and 7, hence, suggestive of cell cycle arrest. Therefore, phenolic compounds present in cereals such as pigmented rice and sorghum may suppress cancer cell proliferation through the activation of the apoptosis.
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Affiliation(s)
- Shiwangni Rao
- School of Biomedical Sciences, Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2650, Australia
| | - Kenneth Chinkwo
- School of Biomedical Sciences, Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2650, Australia.
| | - Abishek Santhakumar
- School of Biomedical Sciences, Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2650, Australia
| | - Stuart Johnson
- Agriculture and Food Discipline, School of Molecular and Life Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6845, Australia
| | - Christopher Blanchard
- School of Biomedical Sciences, Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2650, Australia
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26
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Azadi S, Tafazzoli‐Shadpour M, Soleimani M, Warkiani ME. Modulating cancer cell mechanics and actin cytoskeleton structure by chemical and mechanical stimulations. J Biomed Mater Res A 2019; 107:1569-1581. [DOI: 10.1002/jbm.a.36670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/08/2019] [Accepted: 02/15/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Shohreh Azadi
- Faculty of Biomedical EngineeringAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | | | - Masoud Soleimani
- Department of Hematology, Faculty of Medical scienceTarbiat Modares University Tehran Iran
| | - Majid Ebrahimi Warkiani
- School of Biomedical EngineeringUniversity of Technology Sydney Sydney Australia
- Institute of Molecular MedicineSechenov University Moscow, 119991 Russia
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27
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Ammann KR, DeCook KJ, Li M, Slepian MJ. Migration versus proliferation as contributor to in vitro wound healing of vascular endothelial and smooth muscle cells. Exp Cell Res 2019; 376:58-66. [PMID: 30660619 PMCID: PMC6988716 DOI: 10.1016/j.yexcr.2019.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/31/2018] [Accepted: 01/10/2019] [Indexed: 12/27/2022]
Abstract
Wound closure, as a result of collective cell growth, is an essential biological response to injury. In the field of vascular biology, the response of vascular smooth muscle cells (SMCs) and endothelial cells (ECs) to injury and substrate surface is important in therapeutic clinical treatment interventions such as angioplasty and atherectomy. Specifically, the mechanism by which cells close wounds (i.e. proliferation versus migration) in response to injury stimuli is of interest to better modulate recurrent vascular stenosis, prevent thrombus formation, occlusion, and life-threatening cardiovascular events. Here, we examine growth extent and temporal sequence of events following wound or gap introduction to a confluent monolayer of vascular SMCs or ECs. Significant differences in the preferred mechanisms of these cells to close wounds or gaps were observed; after 48 h, 73% of SMC wound closure was observed to be due to proliferation, while 75% of EC wound closure resulted from migration. These mechanisms were further modulated via addition or removal of extracellular matrix substrate and injury, with ECs more responsive to substrate composition and less to injury, in comparison to SMCs. Our results indicate that ECs and SMCs heal wounds differently, and that the time and mode of injury and associated substrate surface all impact this response.
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Affiliation(s)
- Kaitlyn R Ammann
- Department of Biomedical Engineering, College of Engineering, University of Arizona,1127 E James E Rogers Way, PO Box 210020, Tucson, AZ 85721, USA
| | - Katrina J DeCook
- Department of Biomedical Engineering, College of Engineering, University of Arizona,1127 E James E Rogers Way, PO Box 210020, Tucson, AZ 85721, USA
| | - Maxwell Li
- Department of Biomedical Engineering, College of Engineering, University of Arizona,1127 E James E Rogers Way, PO Box 210020, Tucson, AZ 85721, USA
| | - Marvin J Slepian
- Department of Biomedical Engineering, College of Engineering, University of Arizona,1127 E James E Rogers Way, PO Box 210020, Tucson, AZ 85721, USA; Department of Medicine, Sarver Heart Center, University of Arizona, 1501 N Campbell Ave, PO Box 245035, Tucson, AZ 85724, USA.
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28
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Mantz A, Pannier AK. Biomaterial substrate modifications that influence cell-material interactions to prime cellular responses to nonviral gene delivery. Exp Biol Med (Maywood) 2019; 244:100-113. [PMID: 30621454 PMCID: PMC6405826 DOI: 10.1177/1535370218821060] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
IMPACT STATEMENT This review summarizes how biomaterial substrate modifications (e.g. chemical modifications like natural coatings, ligands, or functional side groups, and/or physical modifications such as topography or stiffness) can prime the cellular response to nonviral gene delivery (e.g. affecting integrin binding and focal adhesion formation, cytoskeletal remodeling, endocytic mechanisms, and intracellular trafficking), to aid in improving gene delivery for applications where a cell-material interface might exist (e.g. tissue engineering scaffolds, medical implants and devices, sensors and diagnostics, wound dressings).
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Affiliation(s)
- Amy Mantz
- Department of Biological Systems Engineering,
University
of Nebraska-Lincoln, Lincoln, NE 68583,
USA
| | - Angela K Pannier
- Department of Biological Systems Engineering,
University
of Nebraska-Lincoln, Lincoln, NE 68583,
USA
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29
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Hassanisaber H, Jafari L, Campeau MA, Drevelle O, Lauzon MA, Langelier E, Faucheux N, Rouleau L. The effect of substrate bulk stiffness on focal and fibrillar adhesion formation in human abdominal aortic endothelial cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 98:572-583. [PMID: 30813060 DOI: 10.1016/j.msec.2018.12.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 12/07/2018] [Accepted: 12/28/2018] [Indexed: 01/01/2023]
Abstract
Endothelial cell (EC) dysfunction contributes to atherosclerosis, which is associated with arterial stiffening and fibronectin (FN) deposition, by ECs and smooth muscle cells (SMCs). The effect of stiffness on the EC/FN interaction and fibrillar adhesion formation has been poorly studied. An in vitro model was prepared that included FN-coated polydimethylsiloxane (PDMS) films with similar hydrophobicity and roughness but distinct Young's modulus values, mimicking healthy (1.0 MPa) and atherosclerotic (2.8 MPa) arteries. Human aortic abdominal endothelial cells (HAAECs) seeded on 1.0 MPa PDMS films spread over time and reached their maximum surface area faster than on 2.8 MPa PDMS films. In addition, HAAECs appeared to organize focal adhesion more rapidly on 1.0 MPa PDMS films, despite the similar cell binding domain accessibility to adsorbed FN. Interestingly, we also observed up to a ~5-fold increase in the percentage of HAAECs that had a well-developed fibrillar adhesion on 1.0 MPa compared to 2.8 MPa PDMS films as verified by integrin α5 subunits, tensin, and FN staining. This variation did not affect EC migration. These results suggest that there are favourable conditions for FN matrix assembly by ECs in early atherosclerosis rather than at advanced stages. Our in vitro model will therefore be helpful to understand the influence of bulk stiffness on cells involved in atherosclerosis.
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Affiliation(s)
- H Hassanisaber
- Cell-biomaterial Biohybrid Systems, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec, J1K 2R1, Canada.
| | - L Jafari
- Department of Mechanical Engineering, Université de Sherbrooke, 2500 boul. Université, Sherbrooke, Québec, J1K 2R1, Canada.
| | - M A Campeau
- Department of Chemical Engineering, McGill University, 3610 Rue University, Montréal, Québec, H3A 0C5, Canada.
| | - O Drevelle
- Cell-biomaterial Biohybrid Systems, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec, J1K 2R1, Canada; Thermal Plasma and Nanomaterial Synthesis Laboratory, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 boul. Université, Sherbrooke, Québec J1K 2R1, Canada.
| | - M-A Lauzon
- 3D Cell Culture Systems Laboratory, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 boul. Université, Sherbrooke, Québec J1K 2R1, Canada.
| | - E Langelier
- Department of Mechanical Engineering, Université de Sherbrooke, 2500 boul. Université, Sherbrooke, Québec, J1K 2R1, Canada; Clinical Research Centre of Centre Hospitalier Universitaire de Sherbrooke, 12e Avenue N, Sherbrooke, Québec J1H 5N4, Canada.
| | - N Faucheux
- Cell-biomaterial Biohybrid Systems, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec, J1K 2R1, Canada; Clinical Research Centre of Centre Hospitalier Universitaire de Sherbrooke, 12e Avenue N, Sherbrooke, Québec J1H 5N4, Canada.
| | - L Rouleau
- Department of Mechanical Engineering, Université de Sherbrooke, 2500 boul. Université, Sherbrooke, Québec, J1K 2R1, Canada.
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30
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Callcott ET, Blanchard CL, Oli P, Santhakumar AB. Pigmented Rice‐Derived Phenolic Compounds Reduce Biomarkers of Oxidative Stress and Inflammation in Human Umbilical Vein Endothelial Cells. Mol Nutr Food Res 2018; 62:e1800840. [DOI: 10.1002/mnfr.201800840] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/16/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Esther T. Callcott
- Australian Research Council Industrial Transformation Training Centre for Functional Grains Graham Centre for Agricultural Innovation Charles Sturt University Wagga Wagga New South Wales 2650 Australia
- School of Biomedical Sciences Charles Sturt University Wagga Wagga New South Wales 2650 Australia
| | - Christopher L. Blanchard
- Australian Research Council Industrial Transformation Training Centre for Functional Grains Graham Centre for Agricultural Innovation Charles Sturt University Wagga Wagga New South Wales 2650 Australia
- School of Biomedical Sciences Charles Sturt University Wagga Wagga New South Wales 2650 Australia
| | - Prakash Oli
- New South Wales Department of Primary Industries Yanco Agricultural Institute Private Mail Bag Yanco New South Wales 2703 Australia
| | - Abishek B. Santhakumar
- Australian Research Council Industrial Transformation Training Centre for Functional Grains Graham Centre for Agricultural Innovation Charles Sturt University Wagga Wagga New South Wales 2650 Australia
- School of Biomedical Sciences Charles Sturt University Wagga Wagga New South Wales 2650 Australia
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31
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Bai M, Xie J, Liu X, Chen X, Liu W, Wu F, Chen D, Sun Y, Li X, Wang C, Ye L. Microenvironmental Stiffness Regulates Dental Papilla Cell Differentiation: Implications for the Importance of Fibronectin-Paxillin-β-Catenin Axis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26917-26927. [PMID: 30004214 DOI: 10.1021/acsami.8b08450] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The mechanical stiffness of substrates is recognized to be an important physical cue in the microenvironment of local cellular residents in mammalian species due to their great capacity in regulating cell behavior. Dental papilla cells (DPCs) play an important role in the field of dental tissue engineering for their stem cell-like properties. Therefore, it is essential to provide the suitable microenvironment by combining with the physical cues of biomaterials for DPCs to carry out the function of effective tissue regeneration. However, how the substrate stiffness influences the odontogenic differentiation of DPCs is still unclear. Thus, we fabricated poly(dimethylsiloxane) substrates with varied stiffness for cell behavior. Both cell morphology and focal adhesion were shown to have significant changes in response to varied stiffness. Paxillin, an important protein adapter of focal adhesion kinase protein, was shown to interact with both ectoplasmic fibronectin and cytoplasmic β-catenin by coimmunoprecipitation. The resultant changes of β-catenin by varied stiffness were confirmed by immunofluorescent stain and western blotting. Further, the higher quantity nuclear translocation of β-catenin and the less phospho-β-catenin on the stiff substrate were detected. This nuclear translocation in the stiff substrate finally led to an increased mineralization of DPCs relative to the soft substrate detected by Von Kossa and Alizarin Red stain. Taken together, this work not only points out that the substrate stiffness can regulate the odontogenic differentiation potential of DPCs via fibronectin/paxillin/β-catenin pathway but also provides significant consequence for biomechanical control of cell behavior in cell-based tooth tissue regeneration.
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Affiliation(s)
- Mingru Bai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Xiaoyu Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Xia Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Wenjing Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Fanzi Wu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Dian Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Yimin Sun
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Xin Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Chenglin Wang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
| | - Ling Ye
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , P. R. China
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32
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Callcott ET, Santhakumar AB, Strappe P, Luo J, Blanchard CL. Polyphenols from Australian-grown pigmented red and purple rice inhibit adipocyte differentiation. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.04.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Xue C, Zhang T, Xie X, Zhang Q, Zhang S, Zhu B, Lin Y, Cai X. Substrate stiffness regulates arterial-venous differentiation of endothelial progenitor cells via the Ras/Mek pathway. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1799-1808. [DOI: 10.1016/j.bbamcr.2017.07.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 07/16/2017] [Accepted: 07/17/2017] [Indexed: 11/29/2022]
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34
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Jalali S, Tafazzoli-Shadpour M, Haghighipour N, Omidvar R, Safshekan F. Regulation of Endothelial Cell Adherence and Elastic Modulus by Substrate Stiffness. ACTA ACUST UNITED AC 2017; 22:79-89. [PMID: 27960555 DOI: 10.1080/15419061.2016.1265949] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Although substrate stiffness has been previously reported to affect various cellular aspects, such as morphology, migration, viability, growth, and cytoskeletal structure, its influence on cell adherence has not been well examined. Here, we prepared three soft, medium, and hard polyacrylamide (PAAM) substrates and utilized AFM to study substrate elasticity and also the adhesion and mechanical properties of endothelial cells in response to changing substrate stiffness. Maximum detachment force and cell stiffness were increased with increasing substrate stiffness. Maximum detachment force values were 0.28 ± 0.14, 0.94 ± 0.27, and 1.99 ± 0.59 nN while Young's moduli of cells were 218.85 ± 38.73, 385.58 ± 131.67, and 933.20 ± 428.92 Pa for soft, medium, and hard substrates, respectively. Human umbilical vein endothelial cells (HUVECs) showed round to more spread shapes on soft to hard substrates, with the most organized and elongated actin structure on the hard hydrogel. Our results confirm the importance of substrate stiffness in regulating cell mechanics and adhesion for a successful cell therapy.
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Affiliation(s)
- Sharareh Jalali
- a Faculty of Biomedical Engineering , Amirkabir University of Technology , Tehran , Iran
| | | | | | - Ramin Omidvar
- a Faculty of Biomedical Engineering , Amirkabir University of Technology , Tehran , Iran
| | - Farzaneh Safshekan
- a Faculty of Biomedical Engineering , Amirkabir University of Technology , Tehran , Iran
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Chang H, Zhang H, Hu M, Chen JY, Li BC, Ren KF, Martins ML, Barbosa MA, Ji J. Stiffness of polyelectrolyte multilayer film influences endothelial function of endothelial cell monolayer. Colloids Surf B Biointerfaces 2017; 149:379-387. [DOI: 10.1016/j.colsurfb.2016.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/27/2016] [Accepted: 11/07/2016] [Indexed: 01/07/2023]
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Tripathy A, Pramanik S, Manna A, Shasmin HN, Radzi Z, Abu Osman NA. Uniformly Porous Nanocrystalline CaMgFe 1.33Ti₃O 12 Ceramic Derived Electro-Ceramic Nanocomposite for Impedance Type Humidity Sensor. SENSORS (BASEL, SWITZERLAND) 2016; 16:E2029. [PMID: 27916913 PMCID: PMC5191010 DOI: 10.3390/s16122029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 10/05/2016] [Accepted: 10/10/2016] [Indexed: 02/05/2023]
Abstract
Since humidity sensors have been widely used in many sectors, a suitable humidity sensing material with improved sensitivity, faster response and recovery times, better stability and low hysteresis is necessary to be developed. Here, we fabricate a uniformly porous humidity sensor using Ca, Ti substituted Mg ferrites with chemical formula of CaMgFe1.33Ti₃O12 as humidity sensing materials by solid-sate step-sintering technique. This synthesis technique is useful to control the grain size with increased porosity to enhance the hydrophilic characteristics of the CaMgFe1.33Ti₃O12 nanoceramic based sintered electro-ceramic nanocomposites. The highest porosity, lowest density and excellent surface-hydrophilicity properties were obtained at 1050 °C sintered ceramic. The performance of this impedance type humidity sensor was evaluated by electrical characterizations using alternating current (AC) in the 33%-95% relative humidity (RH) range at 25 °C. Compared with existing conventional resistive humidity sensors, the present sintered electro-ceramic nanocomposite based humidity sensor showed faster response time (20 s) and recovery time (40 s). This newly developed sensor showed extremely high sensitivity (%S) and small hysteresis of <3.4%. Long-term stability of the sensor had been determined by testing for 30 consecutive days. Therefore, the high performance sensing behavior of the present electro-ceramic nanocomposites would be suitable for a potential use in advanced humidity sensors.
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Affiliation(s)
- Ashis Tripathy
- Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Sumit Pramanik
- Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Ayan Manna
- Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Hanie Nadia Shasmin
- Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Zamri Radzi
- Department of Paediatric Dentistry & Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Noor Azuan Abu Osman
- Centre for Applied Biomechanics, Department of Biomedical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Chang H, Liu XQ, Hu M, Zhang H, Li BC, Ren KF, Boudou T, Albiges-Rizo C, Picart C, Ji J. Substrate Stiffness Combined with Hepatocyte Growth Factor Modulates Endothelial Cell Behavior. Biomacromolecules 2016; 17:2767-76. [PMID: 27428305 PMCID: PMC5024748 DOI: 10.1021/acs.biomac.6b00318] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Endothelial cells (ECs) play a crucial role in regulating various physiological and pathological processes. The behavior of ECs is modulated by physical (e.g., substrate stiffness) and biochemical cues (e.g., growth factors). However, the synergistic influence of these cues on EC behavior has rarely been investigated. In this study, we constructed poly(l-lysine)/hyaluronan (PLL/HA) multilayer films with different stiffness and exposed ECs to these substrates with and without hepatocyte growth factor (HGF)-supplemented culture medium. We demonstrated that EC adhesion, migration, and proliferation were positively correlated with substrate stiffness and that these behaviors were further promoted by HGF. Interestingly, ECs on the lower stiffness substrates showed stronger responses to HGF in terms of migration and proliferation, suggesting that HGF can profoundly influence stiffness-dependent EC behavior correlated with EC growth. After the formation of an EC monolayer, EC behaviors correlated with endothelial function were evaluated by characterizing monolayer integrity, nitric oxide production, and gene expression of endothelial nitric oxide synthase. For the first time, we demonstrated that endothelial function displayed a negative correlation with substrate stiffness. Although HGF improved endothelial function, HGF was not able to change the stiffness-dependent manner of endothelial functions. Taken together, this study provides insights into the synergetic influence of physical and biochemical cues on EC behavior and offers great potential in the development of optimized biomaterials for EC-based regenerative medicine.
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Affiliation(s)
- Hao Chang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Xi-qiu Liu
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France
- Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | - Mi Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - He Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Bo-chao Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Ke-feng Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Thomas Boudou
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France
- Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | | | - Catherine Picart
- CNRS UMR 5628 (LMGP), 3 parvis Louis Néel, 38016 Grenoble, France
- Université Grenoble Alpes, LMGP, 3 parvis Louis Néel, 38016 Grenoble, France
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
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Design and Development for Capacitive Humidity Sensor Applications of Lead-Free Ca,Mg,Fe,Ti-Oxides-Based Electro-Ceramics with Improved Sensing Properties via Physisorption. SENSORS 2016; 16:s16071135. [PMID: 27455263 PMCID: PMC4970177 DOI: 10.3390/s16071135] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/03/2016] [Accepted: 04/06/2016] [Indexed: 11/16/2022]
Abstract
Despite the many attractive potential uses of ceramic materials as humidity sensors, some unavoidable drawbacks, including toxicity, poor biocompatibility, long response and recovery times, low sensitivity and high hysteresis have stymied the use of these materials in advanced applications. Therefore, in present investigation, we developed a capacitive humidity sensor using lead-free Ca,Mg,Fe,Ti-Oxide (CMFTO)-based electro-ceramics with perovskite structures synthesized by solid-state step-sintering. This technique helps maintain the submicron size porous morphology of the developed lead-free CMFTO electro-ceramics while providing enhanced water physisorption behaviour. In comparison with conventional capacitive humidity sensors, the presented CMFTO-based humidity sensor shows a high sensitivity of up to 3000% compared to other materials, even at lower signal frequency. The best also shows a rapid response (14.5 s) and recovery (34.27 s), and very low hysteresis (3.2%) in a 33%-95% relative humidity range which are much lower values than those of existing conventional sensors. Therefore, CMFTO nano-electro-ceramics appear to be very promising materials for fabricating high-performance capacitive humidity sensors.
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Razafiarison T, Silván U, Meier D, Snedeker JG. Surface-Driven Collagen Self-Assembly Affects Early Osteogenic Stem Cell Signaling. Adv Healthc Mater 2016; 5:1481-92. [PMID: 27125602 DOI: 10.1002/adhm.201600128] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/18/2016] [Indexed: 11/10/2022]
Abstract
This study reports how extracellular matrix (ECM) ligand self-assembly on biomaterial surfaces and the resulting nanoscale architecture can drive stem cell behavior. To isolate the biological effects of surface wettability on protein deposition, folding, and ligand activity, a polydimethylsiloxane (PDMS)-based platform was developed and characterized with the ability to tune wettability of elastomeric substrates with otherwise equivalent topology, ligand loading, and mechanical properties. Using this platform, markedly different assembly of covalently bound type I collagen monomers was observed depending on wettability, with hydrophobic substrates yielding a relatively rough layer of collagen aggregates compared to a smooth collagen layer on more hydrophilic substrates. Cellular and molecular investigations with human bone marrow stromal cells revealed higher osteogenic differentiation and upregulation of focal adhesion-related components on the resulting smooth collagen layer coated substrates. The initial collagen assembly driven by the PDMS surface directly affected α1β1 integrin/discoidin domain receptor 1 signaling, activation of the extracellular signal-regulated kinase/mitogen activated protein kinase pathway, and ultimately markers of osteogenic stem cell differentiation. We demonstrate for the first time that surface-driven ligand assembly on material surfaces, even on materials with otherwise identical starting topographies and mechanical properties, can dominate the biomaterial surface-driven cell response.
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Affiliation(s)
- Tojo Razafiarison
- Department of Orthopedics Balgrist University Hospital University of Zurich Lengghalde 5 8008 Zürich Switzerland
- Laboratory for Orthopedic Biomechanics ETH Zurich Lengghalde 5 8008 Zürich Switzerland
| | - Unai Silván
- Department of Orthopedics Balgrist University Hospital University of Zurich Lengghalde 5 8008 Zürich Switzerland
- Laboratory for Orthopedic Biomechanics ETH Zurich Lengghalde 5 8008 Zürich Switzerland
| | - Daniela Meier
- Department of Orthopedics Balgrist University Hospital University of Zurich Lengghalde 5 8008 Zürich Switzerland
| | - Jess G. Snedeker
- Department of Orthopedics Balgrist University Hospital University of Zurich Lengghalde 5 8008 Zürich Switzerland
- Laboratory for Orthopedic Biomechanics ETH Zurich Lengghalde 5 8008 Zürich Switzerland
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Zhou H, Goss M, Hernandez C, Mansour JM, Exner A. Validation of Ultrasound Elastography Imaging for Nondestructive Characterization of Stiffer Biomaterials. Ann Biomed Eng 2016; 44:1515-23. [PMID: 26369634 PMCID: PMC4791216 DOI: 10.1007/s10439-015-1448-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/02/2015] [Indexed: 12/16/2022]
Abstract
Ultrasound elastography (UE) has been widely used as a "digital palpation" tool to characterize tissue mechanical properties in the clinic. UE benefits from the capability of noninvasively generating 2-D elasticity encoded maps. This spatial distribution of elasticity can be especially useful in the in vivo assessment of tissue engineering scaffolds and implantable drug delivery platforms. However, the detection limitations have not been fully characterized and thus its true potential has not been completely discovered. Characterization studies have focused primarily on the range of moduli corresponding to soft tissues, 20-600 kPa. However, polymeric biomaterials used in biomedical applications such as tissue scaffolds, stents, and implantable drug delivery devices can be much stiffer. In order to explore UE's potential to assess mechanical properties of biomaterials in a broader range of applications, this work investigated the detection limit of UE strain imaging beyond soft tissue range. To determine the detection limit, measurements using standard mechanical testing and UE on the same polydimethylsiloxane samples were compared and statistically evaluated. The broadest detection range found based on the current optimized setup is between 47 kPa and 4 MPa which exceeds the modulus of normal soft tissue suggesting the possibility of using this technique for stiffer materials' mechanical characterization. The detectable difference was found to be as low as 157 kPa depending on sample stiffness and experimental setup.
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Affiliation(s)
- Haoyan Zhou
- Department of Biomedical Engineering, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106
| | - Monika Goss
- Department of Biomedical Engineering, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106
| | - Christopher Hernandez
- Department of Biomedical Engineering, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106
| | - Joseph M. Mansour
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106
| | - Agata Exner
- Department of Radiology, Case Western Reserve University, 11100 Euclid Ave, Cleveland, OH, 44106
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Synthesis and Characterizations of Novel Ca-Mg-Ti-Fe-Oxides Based Ceramic Nanocrystals and Flexible Film of Polydimethylsiloxane Composite with Improved Mechanical and Dielectric Properties for Sensors. SENSORS 2016; 16:292. [PMID: 26927116 PMCID: PMC4813867 DOI: 10.3390/s16030292] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 01/27/2016] [Accepted: 02/02/2016] [Indexed: 01/09/2023]
Abstract
Armalcolite, a rare ceramic mineral and normally found in the lunar earth, was synthesized by solid-state step-sintering. The in situ phase-changed novel ceramic nanocrystals of Ca-Mg-Ti-Fe based oxide (CMTFOx), their chemical reactions and bonding with polydimethylsiloxane (PDMS) were determined by X-ray diffraction, infrared spectroscopy, and microscopy. Water absorption of all the CMTFOx was high. The lower dielectric loss tangent value (0.155 at 1 MHz) was obtained for the ceramic sintered at 1050 °C (S1050) and it became lowest for the S1050/PDMS nanocomposite (0.002 at 1 MHz) film, which was made by spin coating at 3000 rpm. The excellent flexibility (static modulus ≈ 0.27 MPa and elongation > 90%), viscoelastic property (tanδ = E″/E': 0.225) and glass transition temperature (Tg: -58.5 °C) were obtained for S1050/PDMS film. Parallel-plate capacitive and flexible resistive humidity sensors have been developed successfully. The best sensing performance of the present S1050 (3000%) and its flexible S1050/PDMS composite film (306%) based humidity sensors was found to be at 100 Hz, better than conventional materials.
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Manna A, Pramanik S, Tripathy A, Moradi A, Radzi Z, Pingguan-Murphy B, Hasnan N, Abu Osman NA. Development of biocompatible hydroxyapatite–poly(ethylene glycol) core–shell nanoparticles as an improved drug carrier: structural and electrical characterizations. RSC Adv 2016. [DOI: 10.1039/c6ra21210g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A model of a controlled drug release mechanism of a dielectric core–shell composite carrier.
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Affiliation(s)
- Ayan Manna
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Sumit Pramanik
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Ashis Tripathy
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Ali Moradi
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Zamri Radzi
- Department of Paediatric Dentistry & Orthodontics
- Faculty of Dentistry
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - Belinda Pingguan-Murphy
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Nazirah Hasnan
- Department of Rehabilitation Medicine
- Faculty of Medicine
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - Noor Azuan Abu Osman
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
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43
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Jang LW, Lee J, Razu ME, Jensen EC, Kim J. Fabrication of PDMS Nanocomposite Materials and Nanostructures for Biomedical Nanosystems. IEEE Trans Nanobioscience 2015; 14:841-9. [DOI: 10.1109/tnb.2015.2509602] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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In Vitro Study of Surface Modified Poly(ethylene glycol)-Impregnated Sintered Bovine Bone Scaffolds on Human Fibroblast Cells. Sci Rep 2015; 5:9806. [PMID: 25950377 PMCID: PMC4423443 DOI: 10.1038/srep09806] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 03/19/2015] [Indexed: 11/08/2022] Open
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A comparison in mechanical properties of cermets of calcium silicate with Ti-55Ni and Ti-6Al-4V alloys for hard tissues replacement. ScientificWorldJournal 2014; 2014:616804. [PMID: 25538954 PMCID: PMC4235599 DOI: 10.1155/2014/616804] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 08/07/2014] [Accepted: 09/14/2014] [Indexed: 11/17/2022] Open
Abstract
This study investigated the impact of calcium silicate (CS) content on composition, compressive mechanical properties, and hardness of CS cermets with Ti-55Ni and Ti-6Al-4V alloys sintered at 1200°C. The powder metallurgy route was exploited to prepare the cermets. New phases of materials of Ni16Ti6Si7, CaTiO3, and Ni31Si12 appeared in cermet of Ti-55Ni with CS and in cermet of Ti-6Al-4V with CS, the new phases Ti5Si3, Ti2O, and CaTiO3, which were emerged during sintering at different CS content (wt%). The minimum shrinkage and density were observed in both groups of cermets for the 50 and 100 wt% CS content, respectively. The cermets with 40 wt% of CS had minimum compressive Young's modulus. The minimum of compressive strength and strain percentage at maximum load were revealed in cermets with 50 and 40 wt% of CS with Ti-55Ni and Ti-6Al-4V cermets, respectively. The cermets with 80 and 90 wt% of CS showed more plasticity than the pure CS. It concluded that the composition and mechanical properties of sintered cermets of Ti-55Ni and Ti-6Al-4V with CS significantly depend on the CS content in raw cermet materials. Thus, the different mechanical properties of the cermets can be used as potential materials for different hard tissues replacements.
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