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Cheong H, Kim J, Kim BJ, Kim E, Park HY, Choi BH, Joo KI, Cho ML, Rhie JW, Lee JI, Cha HJ. Multi-dimensional bioinspired tactics using an engineered mussel protein glue-based nanofiber conduit for accelerated functional nerve regeneration. Acta Biomater 2019; 90:87-99. [PMID: 30978510 DOI: 10.1016/j.actbio.2019.04.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 12/16/2022]
Abstract
Limited regenerative capacity of the nervous system makes treating traumatic nerve injuries with conventional polymer-based nerve grafting a challenging task. Consequently, utilizing natural polymers and biomimetic topologies became obvious strategies for nerve conduit designs. As a bioinspired natural polymer from a marine organism, mussel adhesive proteins (MAPs) fused with biofunctional peptides from extracellular matrix (ECM) were engineered for accelerated nerve regeneration by enhancing cell adhesion, proliferation, neural differentiation, and neurite formation. To physically promote contact guidance of neural and Schwann cells and to achieve guided nerve regeneration, MAP was fabricated into an electrospun aligned nanofiber conduit by introducing synthetic polymer poly(lactic-co-glycolic acid) (PLGA) to control solubility and mechanical property. In vitro and in vivo experiments demonstrated that the multi-dimensional tactics of combining adhesiveness from MAP, integrin-mediated interaction from ECM peptides (in particular, IKVAV derived from laminin α1 chain), and contact guidance from aligned nanofibers synergistically accelerated functional nerve regeneration. Thus, MAP-based multi-dimensional approach provides new opportunities for neural regenerative applications including nerve grafting. STATEMENT OF SIGNIFICANCE: Findings in neural regeneration indicate that a bioinspired polymer-based nerve conduit design should harmoniously constitute various factors, such as biocompatibility, neurotrophic molecule, biodegradability, and contact guidance. Here, we engineered three fusion proteins of mussel-derived adhesive protein with ECM-derived biofunctional peptides to simultaneously provide biocompatibility and integrin-based interactions. In addition, a fabrication of robust aligned nanofiber conduits containing the fusion proteins realized suitable biodegradability and contact guidance. Thus, our multi-dimensional strategy on conduit design provided outstanding biocompatibility, biodegradability, integrin-interaction, and contact guidance to achieve an accelerated functional nerve regeneration. We believe that our bioengineered mussel adhesive protein-based multi-dimensional strategy would offer new insights into the design of nerve tissue engineering biomaterials.
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Abstract
Biomimetic systems often exhibit striking designs well adapted to specific functions that have been inspiring the development of new technologies. Herein, we explored the remarkable ability of honey bees to catch and release large quantities of pollen grains. Hair spacing and height on bees are crucial for their ability to mechanically fix pollen grains. Inspired by this, we proposed the concept of a micropatterned surface for microparticle entrapment, featuring high-aspect-ratio elastic micropillars spaced to mimic the hairy surface of bees. The hypothesis was validated by investigating the ability of polydimethylsiloxane microfabricated patches to fix microparticles. The geometrical arrangement, spacing, height, and flexibility of the fabricated micropillars, and the diameter of the microparticles, were investigated. Higher entrapment capability was found through the match between particle size and pillar spacing, being consistent with the observations that the diameter of pollen grains is similar to the spacing between hairs on bees' legs. Taller pillars permitted immobilization of higher quantities of particles, consistent with the high aspect ratio of bees' hairs. Our biomimetic surfaces were explored for their ability to fix solid microparticles for drug-release applications, using tetracycline hydrochloride as a model antibiotic. These surfaces allowed fixation of more than 20 mg/cm2 of antibiotic, about five times higher dose than commercialized patches (5.1 mg/cm2). Such bioinspired hairy surfaces could find applications in a variety of fields where dry fixation of high quantities of micrometer-sized objects are needed, including biomedicine, agriculture, biotechnology/chemical industry, and cleaning utensils.
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Poudineh M, Wang Z, Labib M, Ahmadi M, Zhang L, Das J, Ahmed S, Angers S, Kelley SO. Three-Dimensional Nanostructured Architectures Enable Efficient Neural Differentiation of Mesenchymal Stem Cells via Mechanotransduction. NANO LETTERS 2018; 18:7188-7193. [PMID: 30335391 DOI: 10.1021/acs.nanolett.8b03313] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Cell morphology and geometry affect cellular processes such as stem cell differentiation, suggesting that these parameters serve as fundamental regulators of biological processes within the cell. Hierarchical architectures featuring micro- and nanotopographical features therefore offer programmable systems for stem cell differentiation. However, a limited number of studies have explored the effects of hierarchical architectures due to the complexity of fabricating systems with rationally tunable micro- and nanostructuring. Here, we report three-dimensional (3D) nanostructured microarchitectures that efficiently regulate the fate of human mesenchymal stem cells (hMSCs). These nanostructured architectures strongly promote cell alignment and efficient neurogenic differentiation where over 85% of hMSCs express microtubule-associated protein 2 (MAP2), a mature neural marker, after 7 days of culture on the nanostructured surface. Remarkably, we found that the surface morphology of nanostructured surface is a key factor that promotes neurogenesis and that highly spiky structures promote more efficient neuronal differentiation. Immunostaining and gene expression profiling revealed significant upregulation of neuronal markers compared to unpatterned surfaces. These findings suggest that the 3D nanostructured microarchitectures can play a critical role in defining stem cell behavior.
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Affiliation(s)
- Mahla Poudineh
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Zongjie Wang
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Mahmoud Labib
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Moloud Ahmadi
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Libing Zhang
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Jagotamoy Das
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Sharif Ahmed
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Stephane Angers
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
| | - Shana O Kelley
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , M5S 3M2 , Canada
- Institute for Biomaterials and Biomedical Engineering , University of Toronto , Toronto , M5S 3M2 , Canada
- Department of Biochemistry, Faculty of Medicine , University of Toronto , Toronto , M5S 1A8 , Canada
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Pardo-Figuerez M, Martin NRW, Player DJ, Roach P, Christie SDR, Capel AJ, Lewis MP. Controlled Arrangement of Neuronal Cells on Surfaces Functionalized with Micropatterned Polymer Brushes. ACS OMEGA 2018; 3:12383-12391. [PMID: 30411006 PMCID: PMC6217525 DOI: 10.1021/acsomega.8b01698] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/17/2018] [Indexed: 05/03/2023]
Abstract
Conventional in vitro cultures are useful to represent simplistic neuronal behavior; however, the lack of organization results in random neurite spreading. To overcome this problem, control over the directionality of SH-SY5Y cells was attained, utilizing photolithography to pattern the cell-repulsive anionic brush poly(potassium 3-sulfopropyl methacrylate) (PKSPMA) into tracks of 20, 40, 80, and 100 μm width. These data validate the use of PKSPMA brush coatings for a long-term culture of the SH-SY5Y cells, as well as providing a methodology by which the precise deposition of PKSPMA can be utilized to achieve a targeted control over the SH-SY5Y cells. Specifically, the PKSPMA brush patterns prevented cell attachment, allowing the SH-SY5Y cells to grow only on noncoated glass (gaps of 20, 50, 75, and 100 μm width) at different cell densities (5000, 10 000, and 15 000 cells/cm2). This research demonstrates the importance of achieving cell directionality in vitro, while these simplistic models could provide new platforms to study complex neuron-neuron interactions.
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Affiliation(s)
- Maria Pardo-Figuerez
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
| | - Neil R. W. Martin
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
| | - Darren J. Player
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
- Institute
of Orthopaedics and Musculoskeletal Science, University College London, Stanmore HA7 4LP, U.K.
| | - Paul Roach
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
| | - Steven D. R. Christie
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
| | - Andrew J. Capel
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
| | - Mark P. Lewis
- National
Centre for Sport and Exercise Medicine (NCSEM), School of
Sport, Exercise and Health Sciences, and Department of Chemistry, School
of Science, Loughborough University, Loughborough LE11 3TU, U.K.
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Nune M, Manchineella S, T G, K S N. Melanin incorporated electroactive and antioxidant silk fibroin nanofibrous scaffolds for nerve tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:17-25. [PMID: 30423699 DOI: 10.1016/j.msec.2018.09.014] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 08/27/2018] [Accepted: 09/05/2018] [Indexed: 02/03/2023]
Abstract
Nerve restoration and repair in the central nervous system is complicated and requires several factors to be considered while designing the scaffolds like being bioactive as well as having neuroinductive, neuroconductive and antioxidant properties. Aligned electrospun nanofibers provide necessary guidance and topographical cues required for directing the axonal and neurite outgrowth during regeneration. Conduction of nerve impulses is a mandatory feature of a typical nerve. The neuro-conductive property can be imparted by blending the biodegradable, bioactive polymers with conductive polymers. This will provide additional features, i.e., electrical cues to the already existing topographical and bioactive cues in order to make it a more multifaceted neuroregenerative approach. Hence in the present study, we used a combination of silk fibroin and melanin for the fabrication of random and aligned electrospun nanofibrous composite scaffolds. We performed the physico-chemical characterization and also assessed their antioxidant properties. We also evaluated their neurogenic potential using human neuroblastoma cells (SH-SY5Y) for their cellular viability, proliferation, adhesion and differentiation levels. Designed nanofibrous scaffolds had adequate physical properties suitable as neural substrates to promote neuronal growth and regeneration. They stimulated the neuroblastoma cell attachment and viability indicating their biocompatible nature. Silk/melanin composite scaffolds have specifically exhibited high antioxidant nature proven by the radical scavenging activity. Additionally, the melanin incorporated aligned silk fibroin scaffolds promoted the cell differentiation into neurons and orientation along their axis. Our results confirmed the potential of melanin incorporated aligned silk fibroin scaffolds as the promising candidates for effective nerve regeneration and recovery.
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Affiliation(s)
- Manasa Nune
- Chemistry and Physics of Materials Unit School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Shivaprasad Manchineella
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Govindaraju T
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Narayan K S
- School of Advanced Materials and Department of Neurosciences, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India.
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Alapan Y, Younesi M, Akkus O, Gurkan UA. Anisotropically Stiff 3D Micropillar Niche Induces Extraordinary Cell Alignment and Elongation. Adv Healthc Mater 2016; 5:1884-92. [PMID: 27191679 PMCID: PMC4982772 DOI: 10.1002/adhm.201600096] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/10/2016] [Indexed: 12/30/2022]
Abstract
A microfabricated pillar substrate is developed to confine, align, and elongate cells, allowing decoupled analysis of stiffness and directionality in 3D. Mesenchymal stem cells and cardiomyocytes are successfully confined in a 3D environment with precisely tunable stiffness anisotropy. It is discovered that anisotropically stiff micropillar substrates provide cellular confinement in 3D, aligning cells in the stiffer direction with extraordinary elongation.
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Affiliation(s)
- Yunus Alapan
- Mechanical and Aerospace Engineering Department Case, Western Reserve University, Cleveland, OH 44106, USA
| | - Mousa Younesi
- Mechanical and Aerospace Engineering Department Case, Western Reserve University, Cleveland, OH 44106, USA
| | - Ozan Akkus
- Mechanical and Aerospace Engineering Department Case, Western Reserve University, Cleveland, OH 44106, USA. Biomedical Engineering Department, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Orthopedics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Umut A. Gurkan
- Mechanical and Aerospace Engineering Department Case, Western Reserve University, Cleveland, OH 44106, USA. Biomedical Engineering Department, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Orthopedics, Case Western Reserve University, Cleveland, OH 44106, USA. Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH 44106, USA
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Aytac Korkmaz S. Diagnosis of cervical cancer cell taken from scanning electron and atomic force microscope images of the same patients using discrete wavelet entropy energy and Jensen Shannon, Hellinger, Triangle Measure classifier. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 160:39-49. [PMID: 26921605 DOI: 10.1016/j.saa.2016.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 02/11/2016] [Indexed: 06/05/2023]
Abstract
The aim of this article is to provide early detection of cervical cancer by using both Atomic Force Microscope (AFM) and Scanning Electron Microscope (SEM) images of same patient. When the studies in the literature are examined, it is seen that the AFM and SEM images of the same patient are not used together for early diagnosis of cervical cancer. AFM and SEM images can be limited when using only one of them for the early detection of cervical cancer. Therefore, multi-modality solutions which give more accuracy results than single solutions have been realized in this paper. Optimum feature space has been obtained by Discrete Wavelet Entropy Energy (DWEE) applying to the 3×180 AFM and SEM images. Then, optimum features of these images are classified with Jensen Shannon, Hellinger, and Triangle Measure (JHT) Classifier for early diagnosis of cervical cancer. However, between classifiers which are Jensen Shannon, Hellinger, and triangle distance have been validated the measures via relationships. Afterwards, accuracy diagnosis of normal, benign, and malign cervical cancer cell was found by combining mean success rates of Jensen Shannon, Hellinger, and Triangle Measure which are connected with each other. Averages of accuracy diagnosis for AFM and SEM images by averaging the results obtained from these 3 classifiers are found as 98.29% and 97.10%, respectively. It has been observed that AFM images for early diagnosis of cervical cancer have higher performance than SEM images. Also in this article, surface roughness of malign AFM images in the result of the analysis made for the AFM images, according to the normal and benign AFM images is observed as larger, If the volume of particles has found as smaller.
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Affiliation(s)
- Sevcan Aytac Korkmaz
- Engineering Faculty, Department of Electrical-Electronic Engineering, Firat University, 23100 Elazığ, Turkey.
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9
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Joo S, Yeon Kim J, Lee E, Hong N, Sun W, Nam Y. Effects of ECM protein micropatterns on the migration and differentiation of adult neural stem cells. Sci Rep 2015; 5:13043. [PMID: 26266893 PMCID: PMC4533601 DOI: 10.1038/srep13043] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 07/16/2015] [Indexed: 02/03/2023] Open
Abstract
The migration and differentiation of adult neural stem cells (aNSCs) are believed to be strongly influenced by the spatial distribution of extracellular matrix (ECM) proteins in the stem cell niche. In vitro culture platform, which involves the specific spatial distribution of ECM protein, could offer novel tools for better understanding of aNSC behavior in the spatial pattern of ECM proteins. In this work, we applied soft-lithographic technique to design simple and reproducible laminin (LN)-polylysine cell culture substrates and investigated how aNSCs respond to the various spatial distribution of laminin, one of ECM proteins enriched in the aNSC niche. We found that aNSC preferred to migrate and attach to LN stripes, and aNSC-derived neurons and astrocytes showed significant difference in motility towards LN stripes. By changing the spacing of LN stripes, we were able to control the alignment of neurons and astrocytes. To the best of our knowledge, this is the first time to investigate the differential cellular responses of aNSCs on ECM protein (LN) and cell adhesive synthetic polymer (PDL) using surface micropatterns. Our findings would provide a deeper understanding in astrocyte-neuron interactions as well as ECM-stem cell interactions.
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Affiliation(s)
- Sunghoon Joo
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-338, Republic of Korea
| | - Joo Yeon Kim
- Department of Anatomy and Division of Brain Korea 21, Korea University College of Medicine, Seoul 136-705, Republic of Korea
| | - Eunsoo Lee
- Department of Anatomy and Division of Brain Korea 21, Korea University College of Medicine, Seoul 136-705, Republic of Korea
| | - Nari Hong
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-338, Republic of Korea
| | - Woong Sun
- Department of Anatomy and Division of Brain Korea 21, Korea University College of Medicine, Seoul 136-705, Republic of Korea
| | - Yoonkey Nam
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-338, Republic of Korea
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Guz NV, Dokukin ME, Woodworth CD, Cardin A, Sokolov I. Towards early detection of cervical cancer: Fractal dimension of AFM images of human cervical epithelial cells at different stages of progression to cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1667-75. [PMID: 25959926 DOI: 10.1016/j.nano.2015.04.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 04/21/2015] [Accepted: 04/22/2015] [Indexed: 01/22/2023]
Abstract
UNLABELLED We used AFM HarmoniX modality to analyse the surface of individual human cervical epithelial cells at three stages of progression to cancer, normal, immortal (pre-malignant) and carcinoma cells. Primary cells from 6 normal strains, 6 cancer, and 6 immortalized lines (derived by plasmid DNA-HPV-16 transfection of cells from 6 healthy individuals) were tested. This cell model allowed for good control of the cell phenotype down to the single cell level, which is impractical to attain in clinical screening tests (ex-vivo). AFM maps of physical (nonspecific) adhesion are collected on fixed dried cells. We show that a surface parameter called fractal dimension can be used to segregate normal from both immortal pre-malignant and malignant cells with sensitivity and specificity of more than 99%. The reported method of analysis can be directly applied to cells collected in liquid cytology screening tests and identified as abnormal with regular optical methods to increase sensitivity. FROM THE CLINICAL EDITOR Despite cervical smear screening, sometimes it is very difficult to differentiate cancers cells from pre-malignant cells. By using AFM to analyze the surface properties of human cervical epithelial cells, the authors were able to accurately identify normal from abnormal cells. This method could augment existing protocols to increase diagnostic accuracy.
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Affiliation(s)
- Nataliia V Guz
- Department of Physics, Clarkson University, Potsdam, NY, USA
| | - Maxim E Dokukin
- Department of Mechanical Engineering, Tufts University, Medford, MA, USA
| | | | - Andrew Cardin
- Department of Physics, Clarkson University, Potsdam, NY, USA
| | - Igor Sokolov
- Department of Mechanical Engineering, Tufts University, Medford, MA, USA; Department of Biomedical Engineering, Tufts University, Medford, MA, USA; Department of Physics, Tufts University, Medford, MA, USA.
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Stoll H, Kwon IK, Lim JY. Material and mechanical factors: new strategy in cellular neurogenesis. Neural Regen Res 2014; 9:1810-3. [PMID: 25422642 PMCID: PMC4239770 DOI: 10.4103/1673-5374.143426] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2014] [Indexed: 11/04/2022] Open
Abstract
Since damaged neural circuits are not generally self-recovered, developing methods to stimulate neurogenesis is critically required. Most studies have examined the effects of soluble pharmacological factors on the cellular neurogenesis. On the other hand, it is now recognized that the other extracellular factors, including material and mechanical cues, also have a strong potential to induce cellular neurogenesis. This article will review recent data on the material (chemical patterning, micro/nano-topography, carbon nanotube, graphene) and mechanical (static cue from substrate stiffness, dynamic cue from stretch and flow shear) stimulations of cellular neurogenesis. These approaches may provide new neural regenerative medicine protocols. Scaffolding material templates capable of triggering cellular neurogenesis can be explored in the presence of neurogenesis-stimulatory mechanical environments, and also with conventional soluble factors, to enhance axonal growth and neural network formation in neural tissue engineering.
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Affiliation(s)
- Hillary Stoll
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Il Keun Kwon
- The Graduate School of Dentistry, Kyung Hee University, Seoul, Korea
| | - Jung Yul Lim
- The Graduate School of Dentistry, Kyung Hee University, Seoul, Korea ; Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
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12
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Gattazzo F, De Maria C, Whulanza Y, Taverni G, Ahluwalia A, Vozzi G. Realisation and characterization of conductive hollow fibers for neuronal tissue engineering. J Biomed Mater Res B Appl Biomater 2014; 103:1107-19. [DOI: 10.1002/jbm.b.33297] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 08/16/2014] [Accepted: 09/12/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Francesca Gattazzo
- Research Center “E. Piaggio,” University of Pisa; Largo Lucio Lazzarino 1 Pisa 56122 Italy
- Department of Molecular Medicine; University of Padova; Padova 35131 Italy
| | - Carmelo De Maria
- Research Center “E. Piaggio,” University of Pisa; Largo Lucio Lazzarino 1 Pisa 56122 Italy
- Department of Ingegneria dell'Informazione; University of Pisa; Via G. Caruso 16 Pisa 56122 Italy
| | - Yudan Whulanza
- Research Center “E. Piaggio,” University of Pisa; Largo Lucio Lazzarino 1 Pisa 56122 Italy
| | - Gemma Taverni
- Research Center “E. Piaggio,” University of Pisa; Largo Lucio Lazzarino 1 Pisa 56122 Italy
| | - Arti Ahluwalia
- Research Center “E. Piaggio,” University of Pisa; Largo Lucio Lazzarino 1 Pisa 56122 Italy
- Department of Ingegneria dell'Informazione; University of Pisa; Via G. Caruso 16 Pisa 56122 Italy
| | - Giovanni Vozzi
- Research Center “E. Piaggio,” University of Pisa; Largo Lucio Lazzarino 1 Pisa 56122 Italy
- Department of Ingegneria dell'Informazione; University of Pisa; Via G. Caruso 16 Pisa 56122 Italy
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Chelli B, Barbalinardo M, Valle F, Greco P, Bystrenova E, Bianchi M, Biscarini F. Neural cell alignment by patterning gradients of the extracellular matrix protein laminin. Interface Focus 2014; 4:20130041. [PMID: 24501672 PMCID: PMC3886309 DOI: 10.1098/rsfs.2013.0041] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Anisotropic orientation and accurate positioning of neural cells is achieved by patterning stripes of the extracellular matrix protein laminin on the surface of polystyrene tissue culture dishes by micromoulding in capillaries (MIMICs). Laminin concentration decreases from the entrance of the channels in contact with the reservoir towards the end. Immunofluorescence analysis of laminin shows a decreasing gradient of concentration along the longitudinal direction of the stripes. The explanation is the superposition of diffusion and convection of the solute, the former dominating at length scales near the entrance (characteristic length around 50 μm), the latter further away (length scale in excess of 900 μm). These length scales are independent of the channel width explored from about 15 to 45 μm. Neural cells are randomly seeded and selectively adhere to the pattern, leaving the unpatterned areas depleted even upon 6 days of incubation. Cell alignment was assessed by the orientation of the long axis of the 4',6-diamidino-2-phenylindole-stained nuclei. Samples on patterned the laminin area exhibit a large orientational order parameter. As control, cells on the unpatterned laminin film exhibit no preferential orientation. This implies that the anisotropy of laminin stripes is an effective chemical stimulus for cell recruiting and alignment.
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Affiliation(s)
- Beatrice Chelli
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, Bologna 40129, Italy
- Nano4bio S.r.l, Viale G. Fanin 48, Bologna 40127, Italy
| | - Marianna Barbalinardo
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, Bologna 40129, Italy
- Nano4bio S.r.l, Viale G. Fanin 48, Bologna 40127, Italy
| | - Francesco Valle
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, Bologna 40129, Italy
| | - Pierpaolo Greco
- Scriba Nanotecnologie S.r.l, Via P. Gobetti 52/3, Bologna 40129, Italy
| | - Eva Bystrenova
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, Bologna 40129, Italy
| | - Michele Bianchi
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, Bologna 40129, Italy
| | - Fabio Biscarini
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), Via P. Gobetti 101, Bologna 40129, Italy
- Dip. Scienze della Vita, Univerità di Modena e Reggio Emilia, Via Campi 183, Modena 41125, Italy
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Chandra P, Noh HB, Shim YB. Cancer cell detection based on the interaction between an anticancer drug and cell membrane components. Chem Commun (Camb) 2013; 49:1900-2. [PMID: 23296144 DOI: 10.1039/c2cc38235k] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Simple and general cancer cell detection methods are required in point-of-care diagnostics. Herein, the interaction between an anticancer drug, daunomycin, and cancer cell membrane components has been studied using an aptamer probe immobilized on a conducting polymer-gold nanoparticle composite film through electrochemical and fluorescence methods and applied to the quantitative detection of cancer cells. The developed method differentiates between cancerous and noncancerous cells effectively.
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Affiliation(s)
- Pranjal Chandra
- Department of Chemistry and Institute of Bio-Physico Sensor Technology, Pusan National University, Busan 609-735, South Korea
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Poudel I, Lee JS, Tan L, Lim JY. Micropatterning-retinoic acid co-control of neuronal cell morphology and neurite outgrowth. Acta Biomater 2013; 9:4592-8. [PMID: 22939924 DOI: 10.1016/j.actbio.2012.08.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/18/2012] [Accepted: 08/26/2012] [Indexed: 01/14/2023]
Abstract
Creating physical-biochemical superposed microenvironments optimal for stimulating neurite outgrowth would be beneficial for neuronal regenerative medicine. We investigated potential co-regulatory effects of cell micropatterning and retinoic acid (RA) soluble factor on neuronal cell morphology and neurite outgrowth. Human neuroblastoma (SH-SY5Y) cell patterning sensitivity could be enhanced by poly-L-lysine-g-polyethylene glycol cell-repellent back-filling, enabling cell confinement in lanes as narrow as 5 μm. Cells patterned on narrow (5 and 10 μm) lanes showed preferred nucleus orientation following the patterning direction. These cells also showed high nucleus aspect ratio but constrained nucleus spreading. On the other hand, cells on wide (20 μm and above) lanes showed random nucleus orientation and cell and nucleus sizes similar to those on unpatterned controls. All these changes were generally maintained with or without RA. Confining cells on narrow (5 and 10 μm) lanes, even without RA, significantly enhanced neurite extension relative to unpatterned control, which was further stimulated by RA. Interestingly, cell patterning on 5 and 10 μm lanes without RA produced longer neurites relative to the RA treatment alone case. Our data on the potential interplay between microscale physical cell confinement and RA-soluble stimulation may provide a new, integrative insight on how to trigger neurite/axon formation for neuronal regenerative medicine.
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16
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Pan CJ, Qin H, Nie YD, Ding HY. Control of osteoblast cells adhesion and spreading by microcontact printing of extracellular matrix protein patterns. Colloids Surf B Biointerfaces 2012; 104:18-26. [PMID: 23298583 DOI: 10.1016/j.colsurfb.2012.11.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 11/21/2012] [Accepted: 11/27/2012] [Indexed: 01/30/2023]
Abstract
In this study, we report a simple method for creating extracellular matrix (ECM) protein patterns to control osteoblast cell adhesion and spreading. The fibronectin patterns are directly produced on polystyrene (PS) surfaces by microcontact printing (μCP). Confocal laser scanning microscopy (CLSM) images show that protein patterns are successfully fabricated on PS surfaces. Newborn rat osteoblast cells are then seeded on these protein patterns and cultured for 4 days. The results demonstrate that osteoblast cells preferentially adhere and grow on the protein areas. The pattern dimensions have significant influences on cell behaviors, including cell adhesion, spreading, distribution, and growth direction. Therefore, it is possible to control the cell morphology and even cell function by carefully designing the pattern shapes and sizes. The present study suggests that the ECM protein patterns can be used to modify biomaterials' surfaces and spatially control the morphologies of osteoblast cells. We believe that our work could find applications for creating patterned bioactive surfaces to control cell adhesion, spreading and cell function. It may be helpful for the development of novel implantable biomaterials, such as artificial bone implants, where control of interfacial biological interactions between implants and cells would be preferable.
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Affiliation(s)
- Chang-Jiang Pan
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huai'an 223003, China.
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17
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Morelli S, Piscioneri A, Messina A, Salerno S, Al-Fageeh MB, Drioli E, Bartolo LD. Neuronal growth and differentiation on biodegradable membranes. J Tissue Eng Regen Med 2012; 9:106-17. [DOI: 10.1002/term.1618] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 07/11/2012] [Accepted: 08/25/2012] [Indexed: 12/13/2022]
Affiliation(s)
- Sabrina Morelli
- Institute of Membrane Technology, National Research Council of Italy, ITM-CNR; c/o University of Calabria; Rende CS Italy
| | - Antonella Piscioneri
- Institute of Membrane Technology, National Research Council of Italy, ITM-CNR; c/o University of Calabria; Rende CS Italy
| | - Antonietta Messina
- Institute of Membrane Technology, National Research Council of Italy, ITM-CNR; c/o University of Calabria; Rende CS Italy
- Department of Chemical Engineering and Materials; University of Calabria; Rende CS Italy
| | - Simona Salerno
- Institute of Membrane Technology, National Research Council of Italy, ITM-CNR; c/o University of Calabria; Rende CS Italy
| | - Mohamed B. Al-Fageeh
- National Centre for Biotechnology; King Abdulaziz City for Science and Technology; Riyadh Saudi Arabia
| | - Enrico Drioli
- Institute of Membrane Technology, National Research Council of Italy, ITM-CNR; c/o University of Calabria; Rende CS Italy
- Department of Chemical Engineering and Materials; University of Calabria; Rende CS Italy
- Hanyang University; WCU Energy Engineering Department; Seoul South Korea
| | - Loredana De Bartolo
- Institute of Membrane Technology, National Research Council of Italy, ITM-CNR; c/o University of Calabria; Rende CS Italy
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18
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Su WT, Liao YF, Wu TW, Wang BJ, Shih YY. Microgrooved patterns enhanced PC12 cell growth, orientation, neurite elongation, and neuritogenesis. J Biomed Mater Res A 2012; 101:185-94. [DOI: 10.1002/jbm.a.34318] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 05/11/2012] [Accepted: 06/01/2012] [Indexed: 12/20/2022]
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19
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Xiao JL, Pan HJ, Lee CH. Optically micropatterned culture of adherent cells. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:075004. [PMID: 22894476 DOI: 10.1117/1.jbo.17.7.075004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We used a liquid-crystal spatial light modulator to project 473 nm light patterns surrounding a region of adherent cells and achieved an arbitrarily micropatterned cell culture. For a group of ∼60 cells, the cell boundaries fit the pattern of light within 15% deviation of the side length. We also demonstrated a wound-healing experiment with a definite starting temporal point by using this technique. While observing mitochondrial structures in the illuminated cells, we found that the 473 nm light damaged the integrity of mitochondria and thus prohibited cell proliferation in the illuminated region.
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Affiliation(s)
- Jian-Long Xiao
- National Yang-Ming University, Institute of Biophotonics, Taipei 11221, Taiwan
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20
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Poudel I, Menter DE, Lim JY. Directing cell function and fate via micropatterning: Role of cell patterning size, shape, and interconnectivity. Biomed Eng Lett 2012. [DOI: 10.1007/s13534-012-0045-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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21
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García-Parra P, Cavaliere F, Maroto M, Bilbao L, Obieta I, López de Munain A, Alava JI, Izeta A. Modeling neural differentiation on micropatterned substrates coated with neural matrix components. Front Cell Neurosci 2012; 6:10. [PMID: 22435050 PMCID: PMC3303083 DOI: 10.3389/fncel.2012.00010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Accepted: 02/28/2012] [Indexed: 01/28/2023] Open
Abstract
Topographical and biochemical characteristics of the substrate are critical for neuronal differentiation including axonal outgrowth and regeneration of neural circuits in vivo. Contact stimuli and signaling molecules allow neurons to develop and stabilize synaptic contacts. Here we present the development, characterization and functional validation of a new polymeric support able to induce neuronal differentiation in both PC12 cell line and adult primary skin-derived precursor cells (SKPs) in vitro. By combining a photolithographic technique with use of neural extracellular matrix (ECM) as a substrate, a biocompatible and efficient microenvironment for neuronal differentiation was developed.
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Affiliation(s)
- Patricia García-Parra
- Biomaterials-Tissue Engineering Unit, Tecnalia Research and Innovation San Sebastian, Spain
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22
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Yamaguchi M, Ikeda K, Suzuki M, Kiyohara A, Kudoh SN, Shimizu K, Taira T, Ito D, Uchida T, Gohara K. Cell patterning using a template of microstructured organosilane layer fabricated by vacuum ultraviolet light lithography. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:12521-12532. [PMID: 21899360 DOI: 10.1021/la202904g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Micropatterning techniques have become increasingly important in cellular biology. Cell patterning is achieved by various methods. Photolithography is one of the most popular methods, and several light sources (e.g., excimer lasers and mercury lamps) are used for that purpose. Vacuum ultraviolet (VUV) light that can be produced by an excimer lamp is advantageous for fabricating material patterns, since it can decompose organic materials directly and efficiently without photoresist or photosensitive materials. Despite the advantages, applications of VUV light to pattern biological materials are few. We have investigated cell patterning by using a template of a microstructured organosilane layer fabricated by VUV lithography. We first made a template of a microstructured organosilane layer by VUV lithography. Cell adhesive materials (poly(d-lysine) and polyethyleneimine) were chemically immobilized on the organosilane template, producing a cell adhesive material pattern. Primary rat cardiac and neuronal cells were successfully patterned by culturing them on the pattern substrate. Long-term culturing was attained for up to two weeks for cardiac cells and two months for cortex cells. We have discussed the reproducibility of cell patterning and made suggestions to improve it.
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Affiliation(s)
- Munehiro Yamaguchi
- Advanced Industrial Science and Technology (AIST), 2-17-2-1, Tsukisamu-Higashi, Sapporo, 062-8517 Japan
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23
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Yang IH, Co CC, Ho CC. Controlling neurite outgrowth with patterned substrates. J Biomed Mater Res A 2011; 97:451-6. [PMID: 21484989 DOI: 10.1002/jbm.a.33082] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 01/05/2011] [Accepted: 02/03/2011] [Indexed: 11/05/2022]
Abstract
In vivo, neurons form neurites, one of which develops into the axon while others become dendrites. While this neuritogenesis process is well programmed in vivo, there are limited methods to control the number and location of neurite extension in vitro. Here we report a method to control neuritogenesis by confining neurons in specific regions using cell resistant poly(oligoethyleneglycol methacrylate-co-methacrylic acid (OEGMA-co-MA)) or poly(ethyleneglycol-block-lactic acid) PEG-PLA. Line patterned substrates reduce multiple extension of neurites and stimulate bi-directional neurite budding for PC12 and cortical neurons. PC12 cells on 20 and 30 μm line patterns extended one neurite in each direction along the line pattern while cortical neuron on 20 and 30 μm line patterns extended one or two neurites in each direction along the line pattern. Statistical analysis of neurite lengths revealed that PC12 cells and cortical neurons on line patterns extend longer neurites. The ability to guide formation of neurites on patterned substrates is useful for generating neural networks and promoting neurite elongation.
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Affiliation(s)
- In Hong Yang
- Department of Chemical and Materials Engineering University of Cincinnati Cincinnati, Ohio 45221, USA
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24
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Kant K, Low SP, Marshal A, Shapter JG, Losic D. Nanopore gradients on porous aluminum oxide generated by nonuniform anodization of aluminum. ACS APPLIED MATERIALS & INTERFACES 2010; 2:3447-3454. [PMID: 21105714 DOI: 10.1021/am100502u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A method for surface engineering of structural gradients with nanopore topography using the self-ordering process based on electrochemical anodization of aluminum is described. A distinct anodization condition with an asymmetrically distributed electric field at the electrolyte/aluminum interface is created by nonparallel arrangement between electrodes (tilted by 45°) in an electrochemical cell. The anodic aluminum oxide (AAO) porous surfaces with ordered nanopore structures with gradual and continuous change of pore diameters from 80 to 300 nm across an area of 0.5-1 cm were fabricated by this anodization using two common electrolytes, oxalic acid (0.3 M) and phosphoric acid (0.3 M). The formation of pore gradients of AAO is explained by asymmetric and gradual distribution of the current density and temperature variation generated on the surface of Al during the anodization process. Optical and wetting gradients of prepared pore structures were confirmed by reflective interferometric spectroscopy and contact angle measurements showing the ability of this method to generate porous surfaces with multifunctional gradients (structural, optical, wetting). The study of influence of pore structures on cell growth using the culture of neuroblastoma cells reveals biological relevance of nanopore gradients and the potential to be applied as the platform for spatially controllable cell growth and cell differentiation.
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Affiliation(s)
- Krishna Kant
- Ian Wark Research Institute and Mawson Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, Adelaide, SA 5095, South Australia, Australia
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25
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Chiono V, Sartori S, Rechichi A, Tonda-Turo C, Vozzi G, Vozzi F, D'Acunto M, Salvadori C, Dini F, Barsotti G, Carlucci F, Burchielli S, Nicolino S, Audisio C, Perroteau I, Giusti P, Ciardelli G. Poly(ester urethane) Guides for Peripheral Nerve Regeneration. Macromol Biosci 2010; 11:245-56. [DOI: 10.1002/mabi.201000354] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Indexed: 01/31/2023]
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26
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Bandiera A, Sist P, Urbani R. Comparison of Thermal Behavior of Two Recombinantly Expressed Human Elastin-Like Polypeptides for Cell Culture Applications. Biomacromolecules 2010; 11:3256-65. [DOI: 10.1021/bm100644m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonella Bandiera
- Department of Life Sciences, University of Trieste, via L. Giorgieri, 1, 34127 Trieste, Italy
| | - Paola Sist
- Department of Life Sciences, University of Trieste, via L. Giorgieri, 1, 34127 Trieste, Italy
| | - Ranieri Urbani
- Department of Life Sciences, University of Trieste, via L. Giorgieri, 1, 34127 Trieste, Italy
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27
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Corey JM, Gertz CC, Sutton TJ, Chen Q, Mycek KB, Wang BS, Martin AA, Johnson SL, Feldman EL. Patterning N-type and S-type neuroblastoma cells with Pluronic F108 and ECM proteins. J Biomed Mater Res A 2010; 93:673-86. [PMID: 19609877 DOI: 10.1002/jbm.a.32485] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Influencing cell shape using micropatterned substrates affects cell behaviors, such as proliferation and apoptosis. Cell shape may also affect these behaviors in human neuroblastoma (NBL) cancer, but to date, no substrate design has effectively patterned multiple clinically important human NBL lines. In this study, we investigated whether Pluronic F108 was an effective antiadhesive coating for human NBL cells and whether it would localize three NBL lines to adhesive regions of tissue culture plastic or collagen I on substrate patterns. The adhesion and patterning of an S-type line, SH-EP, and two N-type lines, SH-SY5Y and IMR-32, were tested. In adhesion assays, F108 deterred NBL adhesion equally as well as two antiadhesive organofunctional silanes and far better than bovine serum albumin. Patterned stripes of F108 restricted all three human NBL lines to adhesive stripes of tissue culture plastic. We then investigated four schemes of applying collagen and F108 to different regions of a substrate. Contact with collagen obliterates the ability of F108 to deter NBL adhesion, limiting how both materials can be applied to substrates to produce high fidelity NBL patterning. This patterned substrate design should facilitate investigations of the role of cell shape in NBL cell behavior.
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Affiliation(s)
- Joseph M Corey
- Department of Neurology, The University of Michigan, 5013 BSRB, 109 Zina Pitcher Place, Ann Arbor, Michigan 48109-2200, USA
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28
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Ohnuma K, Toyota T, Ariizumi T, Sugawara T, Asashima M. Directional migration of neuronal PC12 cells in a ratchet wheel shaped microchamber. J Biosci Bioeng 2009; 108:76-83. [DOI: 10.1016/j.jbiosc.2009.02.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 02/24/2009] [Accepted: 02/24/2009] [Indexed: 01/14/2023]
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29
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Iyer S, Gaikwad RM, Subba-Rao V, Woodworth CD, Sokolov I. Atomic force microscopy detects differences in the surface brush of normal and cancerous cells. NATURE NANOTECHNOLOGY 2009; 4:389-93. [PMID: 19498402 PMCID: PMC3079421 DOI: 10.1038/nnano.2009.77] [Citation(s) in RCA: 236] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Accepted: 03/10/2009] [Indexed: 05/17/2023]
Abstract
The atomic force microscope is broadly used to study the morphology of cells, but it can also probe the mechanics of cells. It is now known that cancerous cells may have different mechanical properties to those of normal cells, but the reasons for these differences are poorly understood. Here, we report quantitatively the differences between normal and cancerous human cervical epithelial cells by considering the brush layer on the cell surface. These brush layers, which consist mainly of microvilli, microridges and cilia, are important for interactions with the environment. Deformation force curves obtained from cells in vitro were processed according to the 'brush on soft cell model'. We found that normal cells have brushes of one length, whereas cancerous cells have mostly two brush lengths of significantly different densities. The observed differences suggest that brush layers should be taken into account when characterizing the cell surface by mechanical means.
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Affiliation(s)
- S Iyer
- Department of Physics, Clarkson University, Potsdam, NY 13699, USA
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30
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Chiono V, Vozzi G, Vozzi F, Salvadori C, Dini F, Carlucci F, Arispici M, Burchielli S, Di Scipio F, Geuna S, Fornaro M, Tos P, Nicolino S, Audisio C, Perroteau I, Chiaravalloti A, Domenici C, Giusti P, Ciardelli G. Melt-extruded guides for peripheral nerve regeneration. Part I: Poly(ε-caprolactone). Biomed Microdevices 2009; 11:1037-50. [DOI: 10.1007/s10544-009-9321-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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31
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Yang IH, Siddique R, Hosmane S, Thakor N, Höke A. Compartmentalized microfluidic culture platform to study mechanism of paclitaxel-induced axonal degeneration. Exp Neurol 2009; 218:124-8. [PMID: 19409381 DOI: 10.1016/j.expneurol.2009.04.017] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Revised: 04/17/2009] [Accepted: 04/22/2009] [Indexed: 11/15/2022]
Abstract
Chemotherapy induced peripheral neuropathy is a common and dose-limiting side effect of anticancer drugs. Studies aimed at understanding the underlying mechanism of neurotoxicity of chemotherapeutic drugs have been hampered by lack of suitable culture systems that can differentiate between neuronal cell body, axon or associated glial cells. Here, we have developed an in vitro compartmentalized microfluidic culture system to examine the site of toxicity of chemotherapeutic drugs. To test the culture platform, we used paclitaxel, a widely used anticancer drug for breast cancer, because it causes sensory polyneuropathy in a large proportion of patients and there is no effective treatment. In previous in vitro studies, paclitaxel induced distal axonal degeneration but it was unclear if this was due to direct toxicity on the axon or a consequence of toxicity on the neuronal cell body. Using microfluidic channels that allow compartmentalized culturing of neurons and axons, we demonstrate that the axons are much more susceptible to toxic effects of paclitaxel. When paclitaxel was applied to the axonal side, there was clear degeneration of axons; but when paclitaxel was applied to the soma side, there was no change in axon length. Furthermore, we show that recombinant human erythropoietin, which had been shown to be neuroprotective against paclitaxel neurotoxicity, provides neuroprotection whether it is applied to the cell body or the axons directly. This observation has implications for development of neuroprotective drugs for chemotherapy induced peripheral neuropathies as dorsal root ganglia do not possess blood-nerve-barrier, eliminating one of the cardinal requirements of drug development for the nervous system. This compartmentalized microfluidic culture system can be used for studies aimed at understanding axon degeneration, neuroprotection and development of the nervous system.
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Affiliation(s)
- In Hong Yang
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
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32
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Möllers S, Heschel I, Damink LHHO, Schügner F, Deumens R, Müller B, Bozkurt A, Nava JG, Noth J, Brook GA. Cytocompatibility of a novel, longitudinally microstructured collagen scaffold intended for nerve tissue repair. Tissue Eng Part A 2009; 15:461-72. [PMID: 18724829 DOI: 10.1089/ten.tea.2007.0107] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Traumatic injury to the nervous system induces functional deficits as a result of axonal destruction and the formation of scar tissue, cystic cavitation, and physical gaps. Bioengineering bridging materials should ideally act as cell carriers for the implantation of axon growth-promoting glia, as well as supporting integration with host cell types. Here, we describe the cytocompatibility of a novel, micro-structured porcine collagen scaffold containing densely packed and highly orientated channels that, in three-dimensional (3D) tissue culture, supports attachment, proliferation, aligned process extension, and directed migration by populations of glial cells (olfactory nerve ensheathing cells and astrocytes) and orientated axonal growth by neurons (differentiated human SH-SY5Y neuroblastoma cell line). The seeded glia required several weeks to penetrate deeply into the highly porous scaffold, where they adopted an orientated morphology similar to that displayed in simple 2D cultures. The direct interaction between SH-SY5Y-derived nerve fibers and the collagen scaffold also resulted in highly orientated axonal growth. It is likely that biocompatible scaffolds that are capable of promoting glial cell attachment, migration, and highly orientated process outgrowth will be important for future repair strategies for traumatically injured nervous tissues.
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Affiliation(s)
- Sven Möllers
- Department of Neurology, RWTH Aachen University, Aachen, Germany
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33
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Gerardo-Nava J, Führmann T, Klinkhammer K, Seiler N, Mey J, Klee D, Möller M, Dalton PD, Brook GA. Human neural cell interactions with orientated electrospun nanofibers in vitro. Nanomedicine (Lond) 2009; 4:11-30. [PMID: 19093893 DOI: 10.2217/17435889.4.1.11] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM Electrospun nanofibers represent potent guidance substrates for nervous tissue repair. Development of nanofiber-based scaffolds for CNS repair requires, as a first step, an understanding of appropriate neural cell type-substrate interactions. MATERIALS & METHODS Astrocyte-nanofiber interactions (e.g., adhesion, proliferation, process extension and migration) were studied by comparing human neural progenitor-derived astrocytes (hNP-ACs) and a human astrocytoma cell line (U373) with aligned polycaprolactone (PCL) nanofibers or blended (25% type I collagen/75% PCL) nanofibers. Neuron-nanofiber interactions were assessed using a differentiated human neuroblastoma cell line (SH-SY5Y). RESULTS & DISCUSSION U373 cells and hNP-AC showed similar process alignment and length when associated with PCL or Type I collagen/PCL nanofibers. Cell adhesion and migration by hNP-AC were clearly improved by functionalization of nanofiber surfaces with type I collagen. Functionalized nanofibers had no such effect on U373 cells. Another clear difference between the U373 cells and hNP-AC interactions with the nanofiber substrate was proliferation; the cell line demonstrating strong proliferation, whereas the hNP-AC line showed no proliferation on either type of nanofiber. Long axonal growth (up to 600 microm in length) of SH-SY5Y neurons followed the orientation of both types of nanofibers even though adhesion of the processes to the fibers was poor. CONCLUSION The use of cell lines is of only limited predictive value when studying cell-substrate interactions but both morphology and alignment of human astrocytes were affected profoundly by nanofibers. Nanofiber surface functionalization with collagen significantly improved hNP-AC adhesion and migration. Alternative forms of functionalization may be required for optimal axon-nanofiber interactions.
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Affiliation(s)
- Jose Gerardo-Nava
- Institute for Neuropathology, Medical Faculty, RWTH Aachen University, Germany
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34
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Corey JM, Gertz CC, Wang BS, Birrell LK, Johnson SL, Martin DC, Feldman EL. The design of electrospun PLLA nanofiber scaffolds compatible with serum-free growth of primary motor and sensory neurons. Acta Biomater 2008; 4:863-75. [PMID: 18396117 DOI: 10.1016/j.actbio.2008.02.020] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Revised: 02/04/2008] [Accepted: 02/08/2008] [Indexed: 01/02/2023]
Abstract
Aligned electrospun nanofibers direct neurite growth and may prove effective for repair throughout the nervous system. Applying nanofiber scaffolds to different nervous system regions will require prior in vitro testing of scaffold designs with specific neuronal and glial cell types. This would be best accomplished using primary neurons in serum-free media; however, such growth on nanofiber substrates has not yet been achieved. Here we report the development of poly(L-lactic acid) (PLLA) nanofiber substrates that support serum-free growth of primary motor and sensory neurons at low plating densities. In our study, we first compared materials used to anchor fibers to glass to keep cells submerged and maintain fiber alignment. We found that poly(lactic-co-glycolic acid) (PLGA) anchors fibers to glass and is less toxic to primary neurons than bandage and glue used in other studies. We then designed a substrate produced by electrospinning PLLA nanofibers directly on cover slips pre-coated with PLGA. This substrate retains fiber alignment even when the fiber bundle detaches from the cover slip and keeps cells in the same focal plane. To see if increasing wettability improves motor neuron survival, some fibers were plasma etched before cell plating. Survival on etched fibers was reduced at the lower plating density. Finally, the alignment of neurons grown on this substrate was equal to nanofiber alignment and surpassed the alignment of neurites from explants tested in a previous study. This substrate should facilitate investigating the behavior of many neuronal types on electrospun fibers in serum-free conditions.
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35
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Li GN, Hoffman-Kim D. Tissue-Engineered Platforms of Axon Guidance. TISSUE ENGINEERING PART B-REVIEWS 2008; 14:33-51. [DOI: 10.1089/teb.2007.0181] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Grace N. Li
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, Rhode Island
| | - Diane Hoffman-Kim
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, Rhode Island
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Kidambi S, Lee I. Primary Neuron/Astrocyte Co-Culture on Polyelectrolyte Multilayer Films: A Template for Studying Astrocyte-Mediated Oxidative Stress in Neurons. ADVANCED FUNCTIONAL MATERIALS 2008; 18:294-301. [PMID: 25400537 PMCID: PMC4229016 DOI: 10.1002/adfm.200601237] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We engineered patterned co-cultures of primary neurons and astrocytes on polyelectrolyte multilayer (PEM) films without the aid of adhesive proteins/ligands to study the oxidative stress mediated by astrocytes on neuronal cells. A number of studies have explored engineering co-culture of neurons and astrocytes predominantly using cell lines rather than primary cells owing to the difficulties involved in attaching primary cells onto synthetic surfaces. To our knowledge this is the first demonstration of patterned co-culture of primary neurons and astrocytes for studying neuronal metabolism. In our study, we used synthetic polymers, namely poly(diallyldimethylammoniumchloride) (PDAC) and sulfonated poly(styrene) (SPS) as the polycation and polyanion, respectively, to build the multilayers. Primary neurons attached and spread preferentially on SPS surfaces, while primary astrocytes attached to both SPS and PDAC surfaces. SPS patterns were formed on PEM surfaces, either by microcontact printing SPS onto PDAC surfaces or vice-versa, to obtain patterns of primary neurons and patterned co-cultures of primary neurons and astrocytes. We further used the patterned co-culture system to study the neuronal response to elevated levels of free fatty acids as compared to the response in separated monoculture by measuring the level of reactive oxygen species (ROS; a widely accepted marker of oxidative stress). The elevation in the ROS levels was observed to occur earlier in the patterned co-culture system than in the separated monoculture system. The results suggest that this technique may provide a useful tool for engineering neuronal co-culture systems, that may more accurately capture neuronal function and metabolism, and thus could be used to obtain valuable insights into neuronal cell function and perhaps even the pathogenesis of neurodegenerative diseases.
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Buttiglione M, Vitiello F, Sardella E, Petrone L, Nardulli M, Favia P, d'Agostino R, Gristina R. Behaviour of SH-SY5Y neuroblastoma cell line grown in different media and on different chemically modified substrates. Biomaterials 2007; 28:2932-45. [PMID: 17391751 DOI: 10.1016/j.biomaterials.2007.02.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Accepted: 02/16/2007] [Indexed: 11/28/2022]
Abstract
Among the parameters that can be tested in experiments on neuronal cell culture the use of different culture media and substrates represents a powerful assay to influence cell adhesion and differentiation. In this work, plasma-enhanced-chemical vapour depositions (PE-CVD) from acrylic acid and allylamine vapours have been performed to deposit coatings bearing oxygen (O)- and nitrogen (N)-containing functional groups on polyethylenetherephtalate (PET) surface. Human neuroblastoma SH-SY5Y cells were grown on plasma modified substrates and in presence of media containing different amount of fetal calf serum (FCS) or in serum-free medium containing cAMP. Our results showed that N-containing substrates improved cell adhesion, while the neurites sprouting was influenced by cell culture media. Interestingly, the presence of carboxylic groups on the modified surface can influence the expression of a differentiation marker, neurofilament-200 (NF-H), in cells grown in serum-containing media.
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Affiliation(s)
- M Buttiglione
- Department of Pharmacology and Human Physiology, University of Bari, Piazza Giulio Cesare-Policlinico, 70124 Bari, Italy.
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