51
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Zhou N, Li Y, Loveland CH, Wilson MJ, Cao B, Qiu P, Yang M, Mao C. Hierarchical Ordered Assembly of Genetically Modifiable Viruses into Nanoridge-in-Microridge Structures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1905577. [PMID: 31736175 PMCID: PMC7055689 DOI: 10.1002/adma.201905577] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/13/2019] [Indexed: 05/22/2023]
Abstract
Hierarchically assembled nanomaterials can find a variety of applications in medicine, energy, and electronics. Here, an automatically controlled dip-pulling method is developed and optimized to generate an unprecedented ordered nano-to-micro hierarchical nanoridge-in-microridge (NiM) structure from a bacteria-specific human-safe virus, the filamentous phage with or without genetically displaying a foreign peptide. The NiM structure is pictured as a window blind with each lath (the microridge) made of parallel phage bundles (the nanoridges). It is independent of the substrate materials supporting it. Surprisingly, it can induce the bidirectional differentiation of stem cells into neurons and astrocytes within a short timeframe (only 8 d) not seen before, which is highly desired because both neurons and astrocytes are needed simultaneously in treating neurodegenerative diseases. Since phages can direct tissue regeneration, template materials formation, sense molecules, and build electrodes, the NiM structures displaying different peptides and on varying materials hold promise in many technologically important fields.
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Affiliation(s)
- Ningyun Zhou
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
| | - Yan Li
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
| | - Christian H Loveland
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
| | - Megan J Wilson
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
| | - Binrui Cao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
| | - Penghe Qiu
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang, 310058, P. R. China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA
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52
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Srivastava P, Kilian KA. Micro-Engineered Models of Development Using Induced Pluripotent Stem Cells. Front Bioeng Biotechnol 2019; 7:357. [PMID: 31850326 PMCID: PMC6895561 DOI: 10.3389/fbioe.2019.00357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/08/2019] [Indexed: 12/31/2022] Open
Abstract
During fetal development, embryonic cells are coaxed through a series of lineage choices which lead to the formation of the three germ layers and subsequently to all the cell types that are required to form an adult human body. Landmark cell fate decisions leading to symmetry breaking, establishment of the primitive streak and first tri-lineage differentiation happen after implantation, and therefore have been attributed to be a function of the embryo's spatiotemporal 3D environment. These mechanical and geometric cues induce a cascade of signaling pathways leading to cell differentiation and orientation. Due to the physiological, ethical, and legal limitations of accessing an intact human embryo for functional studies, multiple in-vitro models have been developed to try and recapitulate the key milestones of mammalian embryogenesis using mouse embryos, or mouse and human embryonic stem cells. More recently, the development of induced pluripotent stem cells represents a cell source which is being explored to prepare a developmental model, owing to their genetic and functional similarities to embryonic stem cells. Here we review the use of micro-engineered cell culture materials as platforms to define the physical and geometric contributions during the cell fate defining process and to study the underlying pathways. This information has applications in various biomedical contexts including tissue engineering, stem cell therapy, and organoid cultures for disease modeling.
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Affiliation(s)
- Pallavi Srivastava
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
- Australian Centre for Nanomedicine, School of Chemistry, School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, Australia
| | - Kristopher A. Kilian
- Australian Centre for Nanomedicine, School of Chemistry, School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, Australia
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53
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Zhu Y, Zhang Q, Shi X, Han D. Hierarchical Hydrogel Composite Interfaces with Robust Mechanical Properties for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1804950. [PMID: 30815920 DOI: 10.1002/adma.201804950] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/22/2018] [Indexed: 06/09/2023]
Abstract
Cells sense and respond to a wide range of external signals, including chemical signals, topography, and interface mechanics, via interactions with the extracellular matrix (ECM), triggering the regulation of behavior and function. The ECM can be considered a hierarchical multiphase porous matrix with various components. Highly porous hydrogel-based biomaterials can mimic the critical ECM properties, to provide mechanical support for tissues and to regulate cellular behaviors, such as adhesion, proliferation, and differentiation. Herein, based on micro/nanoscale-topography-coupled mechanical action, recent advances in the fabrication and application of hydrogel composites with tunable mechanical properties and topography in biomedicine are summarized. In particular, recent findings showing that hydrogels with specifically designed structures not only influence a range of cellular processes and fit the needs of engineered tissues but also have pharmacological effects are emphasized.
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Affiliation(s)
- Yuting Zhu
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Zhang
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoli Shi
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dong Han
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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54
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Membrane curvature underlies actin reorganization in response to nanoscale surface topography. Proc Natl Acad Sci U S A 2019; 116:23143-23151. [PMID: 31591250 DOI: 10.1073/pnas.1910166116] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Surface topography profoundly influences cell adhesion, differentiation, and stem cell fate control. Numerous studies using a variety of materials demonstrate that nanoscale topographies change the intracellular organization of actin cytoskeleton and therefore a broad range of cellular dynamics in live cells. However, the underlying molecular mechanism is not well understood, leaving why actin cytoskeleton responds to topographical features unexplained and therefore preventing researchers from predicting optimal topographic features for desired cell behavior. Here we demonstrate that topography-induced membrane curvature plays a crucial role in modulating intracellular actin organization. By inducing precisely controlled membrane curvatures using engineered vertical nanostructures as topographies, we find that actin fibers form at the sites of nanostructures in a curvature-dependent manner with an upper limit for the diameter of curvature at ∼400 nm. Nanotopography-induced actin fibers are branched actin nucleated by the Arp2/3 complex and are mediated by a curvature-sensing protein FBP17. Our study reveals that the formation of nanotopography-induced actin fibers drastically reduces the amount of stress fibers and mature focal adhesions to result in the reorganization of actin cytoskeleton in the entire cell. These findings establish the membrane curvature as a key linkage between surface topography and topography-induced cell signaling and behavior.
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55
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Chighizola M, Dini T, Lenardi C, Milani P, Podestà A, Schulte C. Mechanotransduction in neuronal cell development and functioning. Biophys Rev 2019; 11:701-720. [PMID: 31617079 PMCID: PMC6815321 DOI: 10.1007/s12551-019-00587-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 08/29/2019] [Indexed: 12/21/2022] Open
Abstract
Although many details remain still elusive, it became increasingly evident in recent years that mechanosensing of microenvironmental biophysical cues and subsequent mechanotransduction are strongly involved in the regulation of neuronal cell development and functioning. This review gives an overview about the current understanding of brain and neuronal cell mechanobiology and how it impacts on neurogenesis, neuronal migration, differentiation, and maturation. We will focus particularly on the events in the cell/microenvironment interface and the decisive extracellular matrix (ECM) parameters (i.e. rigidity and nanometric spatial organisation of adhesion sites) that modulate integrin adhesion complex-based mechanosensing and mechanotransductive signalling. It will also be outlined how biomaterial approaches mimicking essential ECM features help to understand these processes and how they can be used to control and guide neuronal cell behaviour by providing appropriate biophysical cues. In addition, principal biophysical methods will be highlighted that have been crucial for the study of neuronal mechanobiology.
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Affiliation(s)
- Matteo Chighizola
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.) and Department of Physics ``Aldo Pontremoli'', Università degli Studi di Milano, via Celoria 16, 20133, Milan, Italy
| | - Tania Dini
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.) and Department of Physics ``Aldo Pontremoli'', Università degli Studi di Milano, via Celoria 16, 20133, Milan, Italy
| | - Cristina Lenardi
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.) and Department of Physics ``Aldo Pontremoli'', Università degli Studi di Milano, via Celoria 16, 20133, Milan, Italy
| | - Paolo Milani
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.) and Department of Physics ``Aldo Pontremoli'', Università degli Studi di Milano, via Celoria 16, 20133, Milan, Italy
| | - Alessandro Podestà
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.) and Department of Physics ``Aldo Pontremoli'', Università degli Studi di Milano, via Celoria 16, 20133, Milan, Italy
| | - Carsten Schulte
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.) and Department of Physics ``Aldo Pontremoli'', Università degli Studi di Milano, via Celoria 16, 20133, Milan, Italy.
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56
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Wang Q, Qian W, Xu X, Bajpai A, Guan K, Zhang Z, Chen R, Flamini V, Chen W. Energy-Mediated Machinery Drives Cellular Mechanical Allostasis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900453. [PMID: 31270881 PMCID: PMC11157583 DOI: 10.1002/adma.201900453] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 06/06/2019] [Indexed: 06/09/2023]
Abstract
Allostasis is a fundamental biological process through which living organisms achieve stability via physiological or behavioral changes to protect against internal and external stresses, and ultimately better adapt to the local environment. However, an full understanding of cellular-level allostasis is far from developed. By employing an integrated micromechanical tool capable of applying controlled mechanical stress on an individual cell and simultaneously reporting dynamic information of subcellular mechanics, individual cell allostasis is observed to occur through a biphasic process; cellular mechanics tends to restore to a stable state through a mechanoadaptative process with excitative biophysical activity followed by a decaying adaptive phase. Based on these observations, it is found that cellular allostasis occurs through a complex balance of subcellular energy and cellular mechanics; upon a transient and local physical stimulation, cells trigger an allostatic state that maximizes energy and overcomes a mechanical "energy barrier" followed by a relaxation state that reaches its mechanobiological stabilization and energy minimization. Discoveries of energy-driven cellular machinery and conserved mechanotransductive pathways underscore the critical role of force-sensitive cytoskeleton equilibrium in cellular allostasis. This highlight the biophysical origin of cellular mechanical allostasis, providing subcellular methods to understand the etiology and progression of certain diseases or aging.
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Affiliation(s)
- Qianbin Wang
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Weiyi Qian
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Xiaoyu Xu
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Apratim Bajpai
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Kevin Guan
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Zijing Zhang
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Roy Chen
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Vittoria Flamini
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Weiqiang Chen
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
- Department of Biomedical Engineering, New York University, Brooklyn, NY, 11201, USA
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57
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Yildirimer L, Zhang Q, Kuang S, Cheung CWJ, Chu KA, He Y, Yang M, Zhao X. Engineering three-dimensional microenvironments towards
in vitro
disease models of the central nervous system. Biofabrication 2019; 11:032003. [DOI: 10.1088/1758-5090/ab17aa] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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58
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Tang SW, Uddin MH, Tong WY, Pasic P, Yuen W, Thissen H, Lam YW, Voelcker NH. Replication of a Tissue Microenvironment by Thermal Scanning Probe Lithography. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18988-18994. [PMID: 31051073 DOI: 10.1021/acsami.9b05553] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Thermal scanning probe lithography (t-SPL) is a nanofabrication technique in which an immobilized thermolabile resist, such as polyphthalaldehyde (PPA), is locally vaporized by a heated atomic force microscope tip. Compared with other nanofabrication techniques, such as soft lithography and nanoimprinting lithography, t-SPL is more efficient and convenient as it does not involve time-consuming mask productions or complicated etching procedures, making it a promising candidate technique for the fast prototyping of nanoscale topographies for biological studies. Here, we established the direct use of PPA-coated surfaces as a cell culture substrate. We showed that PPA is biocompatible and that the deposition of allylamine by plasma polymerization on a silicon wafer before PPA coating can stabilize the immobilization of PPA in aqueous solutions. When seeded on PPA-coated surfaces, human mesenchymal stem cells (MSC) adhered, spread, and proliferated in a manner indistinguishable from cells cultured on glass surfaces. This allowed us to subsequently use t-SPL to generate nanotopographies for cell culture experiments. As a proof of concept, we analyzed the surface topography of bovine tendon sections, previously shown to induce morphogenesis and differentiation of MSC, by means of atomic force microscopy, and then "wrote" topographical data on PPA by means of t-SPL. The resulting substrate, matching the native tissue topography on the nanoscale, was directly used for MSC culture. The t-SPL substrate induced similar changes in cell morphology and focal adhesion formation in the MSC compared to native tendon sections, suggesting that t-SPL can rapidly generate cell culture substrates with complex and spatially accurate topographical signals. This technique may greatly accelerate the prototyping of models for the study of cell-matrix interactions.
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Affiliation(s)
- Sze Wing Tang
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong SAR
| | - Md Hemayet Uddin
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility , 151 Wellington Road , Clayton , Victoria 3168 , Australia
| | - Wing Yin Tong
- Commonwealth Scientific and Industrial Research Organization (CSIRO) , Clayton , Victoria 3168 , Australia
| | - Paul Pasic
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility , 151 Wellington Road , Clayton , Victoria 3168 , Australia
| | - Wai Yuen
- HealthBaby Biotech (Hong Kong) Company, Limited , Lakeside 2 West Wing, No. 10 Science Park West Avenue , Sha Tin , Hong Kong SAR
| | - Helmut Thissen
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility , 151 Wellington Road , Clayton , Victoria 3168 , Australia
| | - Yun Wah Lam
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong SAR
| | - Nicolas H Voelcker
- Drug Delivery Disposition & Dynamics, Monash Institute of Pharmaceutical Science , Monash University , 381 Royal Parade , Parkville , Victoria 3052 , Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO) , Clayton , Victoria 3168 , Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility , 151 Wellington Road , Clayton , Victoria 3168 , Australia
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Baek J, Jung WB, Cho Y, Lee E, Yun GT, Cho SY, Jung HT, Im SG. Facile Fabrication of High-Definition Hierarchical Wrinkle Structures for Investigating the Geometry-Sensitive Fate Commitment of Human Neural Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17247-17255. [PMID: 31009192 DOI: 10.1021/acsami.9b03479] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
As neural stem cells (NSCs) interact with biophysical cues from their niche during development, it is important to understand the biomolecular mechanism of how the NSCs process these biophysical cues to regulate their behaviors. In particular, anisotropic geometric cues in micro-/nanoscale have been utilized to investigate the biophysical effect of the structure on NSCs behaviors. Here, a series of new nanoscale anisotropic wrinkle structures with the a range of wavelength scales (from 50 nm to 37 μm) was developed to demonstrate the effect of the anisotropic nanostructure on the fate commitment of NSCs. Intriguingly, two distinct characteristic length scales promoted the neurogenesis. Each wavelength scale showed a striking variation in terms of dependency on the directionality of the structures, suggesting the existence of at least two different ways in the processing of anisotropic geometries for neurogenesis. Furthermore, the combined effect of the two distinctive length scales was observed by employing hierarchical multiscale wrinkle structures with two characteristic neurogenesis-promoting wavelengths. Taken together, the wrinkle structure system developed in this study can serve as an effective platform to advance the understanding of how cells sense anisotropic geometries for their specific cellular behaviors. Furthermore, this could provide clues for improving nerve regeneration system of stem cell therapies.
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Affiliation(s)
- Jieung Baek
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Woo-Bin Jung
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for Nanocentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Younghak Cho
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Eunjung Lee
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Geun-Tae Yun
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for Nanocentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Soo-Yeon Cho
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for Nanocentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for Nanocentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for Nanocentury , 291 Daehak-ro , Daejeon 34141 , Korea
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60
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Ko E, Yu SJ, Pagan‐Diaz GJ, Mahmassani Z, Boppart MD, Im SG, Bashir R, Kong H. Matrix Topography Regulates Synaptic Transmission at the Neuromuscular Junction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1801521. [PMID: 30937256 PMCID: PMC6425454 DOI: 10.1002/advs.201801521] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/26/2018] [Indexed: 05/19/2023]
Abstract
Recreation of a muscle that can be controlled by the nervous system would provide a major breakthrough for treatments of injury and diseases. However, the underlying basis of how neuron-muscle interfaces are formed is still not understood sufficiently. Here, it is hypothesized that substrate topography regulates neural innervation and synaptic transmission by mediating the cross-talk between neurons and muscles. This hypothesis is examined by differentiating neural stem cells on the myotubes, formed on the substrate with controlled groove width. The substrate with the groove width of 1600 nm, a similar size to the myofibril diameter, serves to produce larger and aligned myotubes than the flat substrate. The myotubes formed on the grooved substrate display increases in the acetylcholine receptor expression. Reciprocally, motor neuron progenitor cells differentiated from neural stem cells innervate the larger and aligned myotubes more actively than randomly oriented myotubes. As a consequence, mature and aligned myotubes respond to glutamate (i.e., an excitatory neurotransmitter) and curare (i.e., a neuromuscular antagonist) more rapidly and homogeneously than randomly oriented myotubes. The results of this study will be broadly useful for improving the quality of engineered muscle used in a series of applications including drug screening, regeneration therapies, and biological machinery assembly.
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Affiliation(s)
- Eunkyung Ko
- Department of BioengineeringUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
- Department of BioengineeringMicro and Nanotechnology LaboratoryUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
| | - Seung Jung Yu
- Department of Chemical and Biomolecular Engineering and KI for the Nano CenturyKorea Advanced Institute of Science and Technology (KAIST)Daejeon305‐701Republic of Korea
| | - Gelson J. Pagan‐Diaz
- Department of BioengineeringMicro and Nanotechnology LaboratoryUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
| | - Ziad Mahmassani
- Department of Kinesiology and Community HealthBeckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
| | - Marni D. Boppart
- Department of Kinesiology and Community HealthBeckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering and KI for the Nano CenturyKorea Advanced Institute of Science and Technology (KAIST)Daejeon305‐701Republic of Korea
| | - Rashid Bashir
- Department of BioengineeringMicro and Nanotechnology LaboratoryUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
- Carl R. Woese Institute for Genomic Biology and Beckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
- Carle Illinois College of MedicineUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
| | - Hyunjoon Kong
- Department of BioengineeringUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
- Carl R. Woese Institute for Genomic Biology and Beckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
- Carle Illinois College of MedicineUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
- Department of Chemical and Biomolecular EngineeringUniversity of Illinois at Urbana–ChampaignUrbanaIL61801USA
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61
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Wilems T, Vardhan S, Wu S, Sakiyama-Elbert S. The influence of microenvironment and extracellular matrix molecules in driving neural stem cell fate within biomaterials. Brain Res Bull 2019; 148:25-33. [PMID: 30898579 DOI: 10.1016/j.brainresbull.2019.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 12/17/2022]
Abstract
Transplantation of stem cells is a promising potential therapy for central nervous system disease and injury. The capacity for self-renewal, proliferation of progenitor cells, and multi-lineage potential underscores the need for controlling stem cell fate. Furthermore, transplantation within a hostile environment can lead to significant cell death and limited therapeutic potential. Tissue-engineered materials have been developed to both regulate stem cell fate, increase transplanted cell viability, and improve therapeutic outcomes. Traditionally, regulation of stem cell differentiation has been driven through soluble signals, such as growth factors. While these signals are important, insoluble factors from the local microenvironment or extracellular matrix (ECM) molecules also contribute to stem cell activity and fate. Understanding the microenvironment factors that influence stem cell fate, such as mechanical properties, topography, and presentation of specific ECM ligands, is necessary for designing improved biomaterials. Here we review some of the microenvironment factors that regulate stem cell fate and how they can be incorporated into biomaterials as part of potential CNS therapies.
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Affiliation(s)
- Thomas Wilems
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas, 78712, USA
| | - Sangamithra Vardhan
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas, 78712, USA
| | - Siliang Wu
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas, 78712, USA
| | - Shelly Sakiyama-Elbert
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas, 78712, USA.
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62
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Huang J, Tu T, Wang W, Gao Z, Zhou G, Zhang W, Wu X, Liu W. Aligned topography mediated cell elongation reverses pathological phenotype of
in vitro
cultured keloid fibroblasts. J Biomed Mater Res A 2019; 107:1366-1378. [DOI: 10.1002/jbm.a.36650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/17/2018] [Accepted: 02/04/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Jia Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Tian Tu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Wenbo Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Zhen Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Xiaoli Wu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Key Laboratory of Tissue Engineering Research, National Tissue Engineering Center of ChinaShanghai Jiao Tong University School of Medicine Shanghai People's Republic of China
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63
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Omidinia-Anarkoli A, Rimal R, Chandorkar Y, Gehlen DB, Rose JC, Rahimi K, Haraszti T, De Laporte L. Solvent-Induced Nanotopographies of Single Microfibers Regulate Cell Mechanotransduction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7671-7685. [PMID: 30694648 DOI: 10.1021/acsami.8b17955] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The extracellular matrix (ECM) is a dynamic three-dimensional (3D) fibrous network, surrounding all cells in vivo. Fiber manufacturing techniques are employed to mimic the ECM but still lack the knowledge and methodology to produce single fibers approximating cell size with different surface topographies to study cell-material interactions. Using solvent-assisted spinning (SAS), the potential to continuously produce single microscale fibers with unlimited length, precise diameter, and specific surface topographies was demonstrated. By applying solvents with different solubilities and volatilities, fibers with smooth, grooved, and porous surface morphologies are produced. Due to their hierarchical structures, the porous fibers are the most hydrophobic, followed by the grooved and the smooth fibers. The fiber diameter is increased by increasing the polymer concentration or decreasing the collector rotational speed. Moreover, SAS offers the advantage to control the interfiber distance and angle to fabricate multilayered 3D constructs. This report shows for the first time that the micro- and nanoscale topographies of single fibers mechanically regulate cell behavior. Fibroblasts, grown on fibers with grooved topographical features, stretch and elongate more compared to smooth and porous fibers, whereas both porous and grooved fibers induce nuclear translocation of yes-associated protein. The presented technique, therefore, provides a unique platform to study the interaction between cells and single ECM-like fibers in a precise and reproducible manner, which is of great importance for new material developments in the field of tissue engineering.
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Affiliation(s)
| | - Rahul Rimal
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Yashoda Chandorkar
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - David B Gehlen
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Jonas C Rose
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Khosrow Rahimi
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Tamás Haraszti
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Laura De Laporte
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
- ITMC-Institute of Technical and Macromolecular Chemistry , RWTH Aachen University , Aachen 52074 , Germany
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64
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Yang SS, Cha J, Cho SW, Kim P. Time-Dependent Retention of Nanotopographical Cues in Differentiated Neural Stem Cells. ACS Biomater Sci Eng 2019; 5:3802-3807. [DOI: 10.1021/acsbiomaterials.8b01057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Seungwon S. Yang
- Department of Bio and Brain Engineering, KAIST, Daejeon 34141, Korea
| | - Junghwa Cha
- Department of Bio and Brain Engineering, KAIST, Daejeon 34141, Korea
- KAIST Institute for Health Science and Technology, Daejeon 34141, Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Pilnam Kim
- Department of Bio and Brain Engineering, KAIST, Daejeon 34141, Korea
- KAIST Institute for Health Science and Technology, Daejeon 34141, Korea
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65
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Zhang K, Xiao X, Wang X, Fan Y, Li X. Topographical patterning: characteristics of current processing techniques, controllable effects on material properties and co-cultured cell fate, updated applications in tissue engineering, and improvement strategies. J Mater Chem B 2019; 7:7090-7109. [DOI: 10.1039/c9tb01682a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Topographical patterning has recently attracted lots of attention in regulating cell fate, understanding the mechanism of cell–microenvironment interactions, and solving the great issues of regenerative medicine.
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Affiliation(s)
- Ke Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Xiongfu Xiao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Xiumei Wang
- State Key Laboratory of New Ceramic and Fine Processing
- Tsinghua University
- Beijing 100084
- China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
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66
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Abstract
Additively manufactured (AM, =3D printed) porous metallic biomaterials with topologically ordered unit cells have created a lot of excitement and are currently receiving a lot of attention given their great potential for improving bone tissue regeneration and preventing implant-associated infections.
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Affiliation(s)
- Amir A. Zadpoor
- Department of Biomechanical Engineering
- Faculty of Mechanical, Maritime, and Materials Engineering
- Delft University of Technology (TU Delft)
- Delft
- The Netherlands
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67
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Chen CH, Tsai CC, Wu PT, Wang IK, Yu J, Tsai WB. Modulation of Neural Differentiation through Submicron-Grooved Topography Surface with Modified Polydopamine. ACS APPLIED BIO MATERIALS 2018; 2:205-216. [DOI: 10.1021/acsabm.8b00556] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cheng-Hung Chen
- Department of Chemical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan
| | - Ching-Cheng Tsai
- Department of Chemical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan
| | - Po-Ting Wu
- Department of Chemical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan
| | - Ing-Kae Wang
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, No. 195, Chung Hsing Rd., Sec. 4, Hsinchu 310, Taiwan
| | - Jiashing Yu
- Department of Chemical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan
| | - Wei-Bor Tsai
- Department of Chemical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan
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68
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Yang Y, Zhang Y, Chai R, Gu Z. Designs of Biomaterials and Microenvironments for Neuroengineering. Neural Plast 2018; 2018:1021969. [PMID: 30627148 PMCID: PMC6304813 DOI: 10.1155/2018/1021969] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/09/2018] [Indexed: 01/05/2023] Open
Abstract
Recent clinical research on neuroengineering is primarily focused on biocompatible materials, which can be used to provide electroactive and topological cues, regulate the microenvironment, and perform other functions. Novel biomaterials for neuroengineering have been received much attention in the field of research, including graphene, photonic crystals, and organ-on-a-chip. Graphene, which has the advantage of high mechanical strength and chemical stability with the unique electrochemical performance for electrical signal detection and transmission, has significant potential as a conductive scaffolding in the field of medicine. Photonic crystal materials, known as a novel concept in nerve substrates, have provided a new avenue for neuroengineering research because of their unique ordered structure and spectral attributes. The "organ-on-a-chip" systems have shown significant prospects for the developments of the solutions to nerve regeneration by mimicking the microenvironment of nerve tissue. This paper presents a review of current progress in the designs of biomaterials and microenvironments and provides case studies in developing nerve system stents upon these biomaterials. In addition, we compose a conductive patterned compounded biomaterial, which could mimic neuronal microenvironment for neuroengineering by concentrating the advantage of such biomaterials.
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Affiliation(s)
- Yanru Yang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Yuhua Zhang
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing 210096, China
| | - Renjie Chai
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing 210096, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing 211189, China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
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69
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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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70
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Kim SM, Lee MS, Jeon J, Lee DH, Yang K, Cho S, Han I, Yang HS. Biodegradable Nerve Guidance Conduit with Microporous and Micropatterned Poly(lactic‐
co
‐glycolic acid)‐Accelerated Sciatic Nerve Regeneration. Macromol Biosci 2018; 18:e1800290. [DOI: 10.1002/mabi.201800290] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/21/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Seong Min Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 330–714 Republic of Korea
| | - Min Suk Lee
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 330–714 Republic of Korea
| | - Jin Jeon
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 330–714 Republic of Korea
| | - Dong Hyun Lee
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 330–714 Republic of Korea
| | - Kisuk Yang
- Department of BiotechnologyYonsei University Seoul 120–749 Republic of Korea
| | - Seung‐Woo Cho
- Department of BiotechnologyYonsei University Seoul 120–749 Republic of Korea
| | - Inbo Han
- Department of NeurosurgeryCHA Bundang Medical CenterCHA University Seongnam 13496 Republic of Korea
| | - Hee Seok Yang
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative MedicineDankook University Cheonan 330–714 Republic of Korea
- Department of Pharmaceutical EngineeringDankook University Cheonan 330–714 Republic of Korea
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71
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Baek J, Cho SY, Kang H, Ahn H, Jung WB, Cho Y, Lee E, Cho SW, Jung HT, Im SG. Distinct Mechanosensing of Human Neural Stem Cells on Extremely Limited Anisotropic Cellular Contact. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33891-33900. [PMID: 30207452 DOI: 10.1021/acsami.8b10171] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Human neural stem cells (hNSCs) can alter their fate choice in response to the biophysical cues provided during development. In particular, it has been reported that the differentiation of neural stem cells (NSCs) is enhanced by anisotropic contact, which facilitates focal adhesion (FA) formation and cytoskeletal organization. However, a biomolecular mechanism governing how the cells process the biophysical cues from these anisotropic geometries to their fate commitment is still poorly understood due to the limited availability of geometrical diversities (contact width above 50 nm) applicable to cell studies. Here, we firstly demonstrate that the biomolecular mechanism for enhanced neurogenesis on an anisotropic nanostructure is critically dependent on the resolution of a contact feature. We observed a totally different cellular response to anisotropic geometries by first utilizing a high-resolution nanogroove (HRN) structure with an extremely narrow contact width (15 nm). The width scale is sufficiently low to suppress the integrin clustering and enable us to elucidate how the contact area influences the neurogenesis of hNSCs at an aligned state. Both the HRN and control nanogroove (CN) pattern with a contact width of 1 μm induced the spontaneous topographic alignment of hNSCs. However, intriguingly, the focal adhesion (FA) formation and cytoskeletal reorganization were substantially limited on the HRN, although the cells on the CN showed enhanced FA formation compared with flat surfaces. In particular, the hNSCs on the HRN surface exhibited a strikingly lower fraction of nuclear yes-associated protein (YAP) than on the CN surface, which was turned out to be regulated by Rho GTPase in the same way as the cells sense the mechanical properties of the environment. Considering the previously reported role of YAP on neurogenesis, our finding newly substantiates that YAP and Rho GTPase also can be transducers of hNSCs to process topographical alternation to fate decision. Furthermore, this study with the unprecedented high-resolution nanostructure suggests a novel geometry sensing model where the functional crosstalk between YAP signaling and Rho GTPase integrally regulate the fate commitment of the hNSCs.
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Affiliation(s)
- Jieung Baek
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Soo-Yeon Cho
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for NanoCentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Hohyung Kang
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for NanoCentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Hyunah Ahn
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for NanoCentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Woo-Bin Jung
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for NanoCentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Younghak Cho
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Eunjung Lee
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Seung-Woo Cho
- Department of Biotechnology , Yonsei University , Seoul 120-749 , Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for NanoCentury , 291 Daehak-ro , Daejeon 34141 , Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology , 291 Daehak-ro , Daejeon 34141 , Korea
- KAIST Institute for NanoCentury , 291 Daehak-ro , Daejeon 34141 , Korea
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Che X, Boldrey J, Zhong X, Unnikandam-Veettil S, Schneider I, Jiles D, Que L. On-Chip Studies of Magnetic Stimulation Effect on Single Neural Cell Viability and Proliferation on Glass and Nanoporous Surfaces. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28269-28278. [PMID: 30080968 DOI: 10.1021/acsami.8b05715] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Transcranial magnetic stimulation (TMS) is a noninvasive neuromodulation technique, an FDA-approved treatment method for various neurological disorders such as depressive disorder, Parkinson's disease, post-traumatic stress disorder, and migraine. However, information concerning the molecular/cellular-level mechanisms of neurons under magnetic simulation (MS), particularly at the single neural cell level, is still lacking, resulting in very little knowledge of the effects of MS on neural cells. In this paper, the effects of MS on the behaviors of neural cell N27 at the single-cell level on coverslip glass substrate and anodic aluminum oxide (AAO) nanoporous substrate are reported for the first time. First, it has been found that the MS has a negligible cytotoxic effect on N27 cells. Second, MS decreases nuclear localization of paxillin, a focal adhesion protein that is known to enter the nucleus and modulate transcription. Third, the effect of MS on N27 cells can be clearly observed over 24 h, the duration of one cell cycle, after MS is applied to the cells. The size of cells under MS was found to be statistically smaller than that of cells without MS after one cell cycle. Furthermore, directly monitoring cell division process in the microholders on a chip revealed that the cells under MS generated statistically more daughter cells in one average cell cycle time than those without MS. All these results indicate that MS can affect the behavior of N27 cells, promoting their proliferation and regeneration.
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73
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Kim Y, Meade SM, Chen K, Feng H, Rayyan J, Hess-Dunning A, Ereifej ES. Nano-Architectural Approaches for Improved Intracortical Interface Technologies. Front Neurosci 2018; 12:456. [PMID: 30065623 PMCID: PMC6056633 DOI: 10.3389/fnins.2018.00456] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/14/2018] [Indexed: 12/19/2022] Open
Abstract
Intracortical microelectrodes (IME) are neural devices that initially were designed to function as neuroscience tools to enable researchers to understand the nervous system. Over the years, technology that aids interfacing with the nervous system has allowed the ability to treat patients with a wide range of neurological injuries and diseases. Despite the substantial success that has been demonstrated using IME in neural interface applications, these implants eventually fail due to loss of quality recording signals. Recent strategies to improve interfacing with the nervous system have been inspired by methods that mimic the native tissue. This review focusses on one strategy in particular, nano-architecture, a term we introduce that encompasses the approach of roughening the surface of the implant. Various nano-architecture approaches have been hypothesized to improve the biocompatibility of IMEs, enhance the recording quality, and increase the longevity of the implant. This review will begin by introducing IME technology and discuss the challenges facing the clinical deployment of IME technology. The biological inspiration of nano-architecture approaches will be explained as well as leading fabrication methods used to create nano-architecture and their limitations. A review of the effects of nano-architecture surfaces on neural cells will be examined, depicting the various cellular responses to these modified surfaces in both in vitro and pre-clinical models. The proposed mechanism elucidating the ability of nano-architectures to influence cellular phenotype will be considered. Finally, the frontiers of next generation nano-architecture IMEs will be identified, with perspective given on the future impact of this interfacing approach.
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Affiliation(s)
- Youjoung Kim
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Seth M. Meade
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Keying Chen
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - He Feng
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Jacob Rayyan
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Allison Hess-Dunning
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Evon S. Ereifej
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
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74
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Sequential Application of Discrete Topographical Patterns Enhances Derivation of Functional Mesencephalic Dopaminergic Neurons from Human Induced Pluripotent Stem Cells. Sci Rep 2018; 8:9567. [PMID: 29934644 PMCID: PMC6014983 DOI: 10.1038/s41598-018-27653-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 06/04/2018] [Indexed: 01/07/2023] Open
Abstract
Parkinson’s Disease is a progressive neurodegenerative disorder attributed to death of mesencephalic dopaminergic (DA) neurons. Pluripotent stem cells have great potential in the study for this late-onset disease, but acquirement of cells that are robust in quantity and quality is still technically demanding. Biophysical cues have been shown to direct stem cell fate, but the effect of different topographies in the lineage commitment and subsequent maturation stages of cells have been less examined. Using human induced pluripotent stem cells (iPSCs), we applied topographical patterns sequentially during differentiation stages and examined their ability to influence derivation yield and functionality of regionalized subtype-specific DA neurons. Gratings showed higher yield of DA neurons and may be beneficial for initial lineage commitment. Cells derived on pillars in the terminal differentiation stage have increased neuronal complexity, and were more capable of firing repetitive action potentials, showing that pillars yielded better network formation and functionality. Our topography platform can be applied to patient-derived iPSCs as well, and that cells harbouring LRRK2 mutation were more functionally mature when optimal topographies were applied sequentially. This will hopefully accelerate development of robust cell models that will provide novel insights into discovering new therapeutic approaches for Parkinson’s Disease.
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75
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Wandiyanto JV, Linklater D, Tharushi Perera PG, Orlowska A, Truong VK, Thissen H, Ghanaati S, Baulin V, Crawford RJ, Juodkazis S, Ivanova EP. Pheochromocytoma (PC12) Cell Response on Mechanobactericidal Titanium Surfaces. MATERIALS 2018; 11:ma11040605. [PMID: 29662020 PMCID: PMC5951489 DOI: 10.3390/ma11040605] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 03/31/2018] [Accepted: 04/11/2018] [Indexed: 12/27/2022]
Abstract
Titanium is a biocompatible material that is frequently used for making implantable medical devices. Nanoengineering of the surface is the common method for increasing material biocompatibility, and while the nanostructured materials are well-known to represent attractive substrata for eukaryotic cells, very little information has been documented about the interaction between mammalian cells and bactericidal nanostructured surfaces. In this study, we investigated the effect of bactericidal titanium nanostructures on PC12 cell attachment and differentiation—a cell line which has become a widely used in vitro model to study neuronal differentiation. The effects of the nanostructures on the cells were then compared to effects observed when the cells were placed in contact with non-structured titanium. It was found that bactericidal nanostructured surfaces enhanced the attachment of neuron-like cells. In addition, the PC12 cells were able to differentiate on nanostructured surfaces, while the cells on non-structured surfaces were not able to do so. These promising results demonstrate the potential application of bactericidal nanostructured surfaces in biomedical applications such as cochlear and neuronal implants.
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Affiliation(s)
- Jason V Wandiyanto
- School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
| | - Denver Linklater
- School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
- Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
| | | | - Anna Orlowska
- Frankfurt Orofacial Regenerative Medicine, University Hospital Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany.
- Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, 26 Avenue dels Paisos Catalans, 43007 Tarragona, Spain.
| | - Vi Khanh Truong
- School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
| | | | - Shahram Ghanaati
- Frankfurt Orofacial Regenerative Medicine, University Hospital Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany.
| | - Vladimir Baulin
- Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, 26 Avenue dels Paisos Catalans, 43007 Tarragona, Spain.
| | | | - Saulius Juodkazis
- School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
- Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
| | - Elena P Ivanova
- School of Science, RMIT University, Melbourne, VIC 3001, Australia.
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Zhang B, Yan W, Zhu Y, Yang W, Le W, Chen B, Zhu R, Cheng L. Nanomaterials in Neural-Stem-Cell-Mediated Regenerative Medicine: Imaging and Treatment of Neurological Diseases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705694. [PMID: 29543350 DOI: 10.1002/adma.201705694] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/17/2017] [Indexed: 05/24/2023]
Abstract
Patients are increasingly being diagnosed with neuropathic diseases, but are rarely cured because of the loss of neurons in damaged tissues. This situation creates an urgent clinical need to develop alternative treatment strategies for effective repair and regeneration of injured or diseased tissues. Neural stem cells (NSCs), highly pluripotent cells with the ability of self-renewal and potential for multidirectional differentiation, provide a promising solution to meet this demand. However, some serious challenges remaining to be addressed are the regulation of implanted NSCs, tracking their fate, monitoring their interaction with and responsiveness to the tissue environment, and evaluating their treatment efficacy. Nanomaterials have been envisioned as innovative components to further empower the field of NSC-based regenerative medicine, because their unique physicochemical characteristics provide unparalleled solutions to the imaging and treatment of diseases. By building on the advantages of nanomaterials, tremendous efforts have been devoted to facilitate research into the clinical translation of NSC-based therapy. Here, recent work on emerging nanomaterials is highlighted and their performance in the imaging and treatment of neurological diseases is evaluated, comparing the strengths and weaknesses of various imaging modalities currently used. The underlying mechanisms of therapeutic efficacy are discussed, and future research directions are suggested.
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Affiliation(s)
- Bingbo Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200443, China
- Department of Spine Surgery, Tongji Hospital, Institute of Spine and Spinal Cord Injury, Tongji University School of Medicine, Tongji University, Shanghai, 200065, China
| | - Wei Yan
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Yanjing Zhu
- Department of Spine Surgery, Tongji Hospital, Institute of Spine and Spinal Cord Injury, Tongji University School of Medicine, Tongji University, Shanghai, 200065, China
| | - Weitao Yang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200443, China
| | - Wenjun Le
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200443, China
| | - Bingdi Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200443, China
| | - Rongrong Zhu
- Department of Spine Surgery, Tongji Hospital, Institute of Spine and Spinal Cord Injury, Tongji University School of Medicine, Tongji University, Shanghai, 200065, China
| | - Liming Cheng
- Department of Spine Surgery, Tongji Hospital, Institute of Spine and Spinal Cord Injury, Tongji University School of Medicine, Tongji University, Shanghai, 200065, China
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77
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Tang JD, Lampe KJ. From de novo peptides to native proteins: advancements in biomaterial scaffolds for acute ischemic stroke repair. Biomed Mater 2018; 13:034103. [DOI: 10.1088/1748-605x/aaa4c3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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78
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Chen W, Han S, Qian W, Weng S, Yang H, Sun Y, Villa-Diaz LG, Krebsbach PH, Fu J. Nanotopography regulates motor neuron differentiation of human pluripotent stem cells. NANOSCALE 2018; 10:3556-3565. [PMID: 29410983 PMCID: PMC5815510 DOI: 10.1039/c7nr05430k] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The regulation of human pluripotent stem cell (hPSC) behaviors has been mainly studied through exploration of biochemical factors. However, the current directed differentiation protocols for hPSCs that completely rely on biochemical factors remain suboptimal. It has recently become evident that coexisting biophysical signals in the stem cell microenvironment, including nanotopographic cues, can provide potent regulatory signals to mediate adult stem cell behaviors, including self-renewal and differentiation. Herein, we utilized a recently developed, large-scale nanofabrication technique based on reactive-ion etching (RIE) to generate random nanoscale structures on glass surfaces with high precision and reproducibility. We report here that hPSCs are sensitive to nanotopographic cues and such nanotopographic sensitivity can be leveraged for improving directed neuronal differentiation of hPSCs. We demonstrate early neuroepithelial conversion and motor neuron (MN) progenitor differentiation of hPSCs can be promoted using nanoengineered topographic substrates. We further explore how hPSCs sense the substrate nanotopography and relay this biophysical signal through a regulatory signaling network involving cell adhesion, the actomyosin cytoskeleton, and Hippo/YAP signaling to mediate the neuroepithelial induction of hPSCs. Our study provides an efficient method for large-scale production of MNs from hPSCs, useful for regenerative medicine and cell-based therapies.
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Affiliation(s)
- Weiqiang Chen
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48105, USA.
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79
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Hao W, Han J, Chu Y, Huang L, Sun J, Zhuang Y, Li X, Ma H, Chen Y, Dai J. Lower fluidity of supported lipid bilayers promotes neuronal differentiation of neural stem cells by enhancing focal adhesion formation. Biomaterials 2018; 161:106-116. [PMID: 29421547 DOI: 10.1016/j.biomaterials.2018.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 01/04/2018] [Accepted: 01/20/2018] [Indexed: 12/11/2022]
Abstract
Extensive studies have been performed to understand how the mechanical properties of a stem cell's microenvironment influence its behaviors. Supported lipid bilayers (SLBs), a well-known biomimetic platform, have been used to mimic the dynamic characteristics of the extracellular matrix (ECM) because of their fluidity. However, the effect of the fluidity of SLBs on stem cell fate is unknown. We constructed SLBs with different fluidities to explore the influence of fluidity on the differentiation of neural stem cells (NSCs). The results showed that the behavior of NSCs was highly dependent on the fluidity of SLBs. Low fluidity resulted in enhanced focal adhesion formation, a dense network of stress fibers, stretched and elongated cellular morphology and increased neuronal differentiation, while high fluidity led to less focal adhesion formation, immature stress fibers, round cellular morphology and more astrocyte differentiation. Mechanistic studies revealed that low fluidity may have enhanced focal adhesion formation, which activated FAK-MEK/ERK signaling pathways and ultimately promoted neuronal differentiation of NSCs. This work provides a strategy for manipulating the dynamic matrix surface for the development of culture substrates and tissue-engineered scaffolds, which may aid the understanding of how the dynamic ECM influences stem cell behaviors as well as improve the efficacy of stem cell applications.
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Affiliation(s)
- Wangping Hao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Jie Han
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yun Chu
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; University of Science and Technology of China, Hefei, 230026, China
| | - Lei Huang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jie Sun
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, 400038, China
| | - Yan Zhuang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xiaoran Li
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Hongwei Ma
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yanyan Chen
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
| | - Jianwu Dai
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China.
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80
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Park S, Kim D, Park S, Kim S, Lee D, Kim W, Kim J. Nanopatterned Scaffolds for Neural Tissue Engineering and Regenerative Medicine. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:421-443. [PMID: 30357636 DOI: 10.1007/978-981-13-0950-2_22] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biologically inspired approaches employing nanoengineering techniques have been influential in the progress of neural tissue repair and regeneration. Neural tissues are exposed to complex nanoscale environments such as nanofibrils. In this chapter, we summarize representative nanotechniques, such as electrospinning, lithography, and 3D bioprinting, and their use in the design and fabrication of nanopatterned scaffolds for neural tissue engineering and regenerative medicine. Nanotopographical cues in combination with other cues (e.g., chemical cues) are crucial to neural tissue repair and regeneration using cells, including various types of stem cells. Production of biologically inspired nanopatterned scaffolds may encourage the next revolution for studies aiming to advance neural tissue engineering and regenerative medicine.
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Affiliation(s)
- Sunho Park
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Daun Kim
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Sungmin Park
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Sujin Kim
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Dohyeon Lee
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Woochan Kim
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Jangho Kim
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea.
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81
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Yang K, Yu SJ, Lee JS, Lee HR, Chang GE, Seo J, Lee T, Cheong E, Im SG, Cho SW. Electroconductive nanoscale topography for enhanced neuronal differentiation and electrophysiological maturation of human neural stem cells. NANOSCALE 2017; 9:18737-18752. [PMID: 29168523 DOI: 10.1039/c7nr05446g] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Biophysical cues, such as topography, and electrical cues can provide external stimulation for the promotion of stem cell neurogenesis. Here, we demonstrate an electroconductive surface nanotopography for enhancing neuronal differentiation and the functional maturation of human neural stem cells (hNSCs). The electroconductive nanopatterned substrates were prepared by depositing a thin layer of titanium (Ti) with nanograting topographies (150 to 300 nm groove/ridge, the thickness of the groove - 150 μm) onto polymer surfaces. The Ti-coated nanopatterned substrate (TNS) induced cellular alignment along the groove pattern via contact guidance and promoted focal adhesion and cytoskeletal reorganization, which ultimately led to enhanced neuronal differentiation and maturation of hNSCs as indicated by significantly elevated neurite extension and the upregulated expression of the neuronal markers Tuj1 and NeuN compared with the Ti-coated flat substrate (TFS) and the nanopatterned substrate (NS) without Ti coating. Mechanosensitive cellular events, such as β1-integrin binding/clustering and myosin-actin interaction, and the Rho-associated protein kinase (ROCK) and mitogen-activated protein kinase/extracellular signal regulated kinase (MEK-ERK) pathways, were found to be associated with enhanced focal adhesion and neuronal differentiation of hNSCs by the TNS. Among the neuronal subtypes, differentiation into dopaminergic and glutamatergic neurons was promoted on the TNS. Importantly, the TNS increased the induction rate of neuron-like cells exhibiting electrophysiological properties from hNSCs. Finally, the application of pulsed electrical stimulation to the TNS further enhanced neuronal differentiation of hNSCs due probably to calcium channel activation, indicating a combined effect of topographical and electrical cues on stem cell neurogenesis, which postulates the novelty of our current study. The present work suggests that an electroconductive nanopatterned substrate can serve as an effective culture platform for deriving highly mature, functional neuronal lineage cells from stem cells.
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Affiliation(s)
- Kisuk Yang
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea.
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82
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Goichberg P. Current Understanding of the Pathways Involved in Adult Stem and Progenitor Cell Migration for Tissue Homeostasis and Repair. Stem Cell Rev Rep 2017; 12:421-37. [PMID: 27209167 DOI: 10.1007/s12015-016-9663-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
With the advancements in the field of adult stem and progenitor cells grows the recognition that the motility of primitive cells is a pivotal aspect of their functionality. There is accumulating evidence that the recruitment of tissue-resident and circulating cells is critical for organ homeostasis and effective injury responses, whereas the pathobiology of degenerative diseases, neoplasm and aging, might be rooted in the altered ability of immature cells to migrate. Furthermore, understanding the biological machinery determining the translocation patterns of tissue progenitors is of great relevance for the emerging methodologies for cell-based therapies and regenerative medicine. The present article provides an overview of studies addressing the physiological significance and diverse modes of stem and progenitor cell trafficking in adult mammalian organs, discusses the major microenvironmental cues regulating cell migration, and describes the implementation of live imaging approaches for the exploration of stem cell movement in tissues and the factors dictating the motility of endogenous and transplanted cells with regenerative potential.
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Affiliation(s)
- Polina Goichberg
- Department Anesthesiology, Perioperative and Pain Medicine, Harvard Medical School, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA.
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83
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Wang PY, Lian YS, Chang R, Liao WH, Chen WS, Tsai WB. Modulation of PEI-Mediated Gene Transfection through Controlling Cytoskeleton Organization and Nuclear Morphology via Nanogrooved Topographies. ACS Biomater Sci Eng 2017; 3:3283-3291. [PMID: 33445370 DOI: 10.1021/acsbiomaterials.7b00617] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effect of nanotopographies on cell adhesion, migration, proliferation, differentiation, and/or apoptosis have been studied over the last two decades. However, the effect of nanotopography on gene transfection of adhered cells is far from understood. One key phenomenon of using nanotopography is mimicry of native cell morphology in vitro such as in alignment of skeletal myoblasts on nanogrooves. The formation of focal adhesions, the cytoskeleton, and the morphology of cell nuclei are altered by underlying nanogrooves, but the role of these changes in gene transfection are not well understood. In this study, C2C12 skeletal myoblasts were transfected using polyethylenimine (PEI)/DNA complexes on nanogrooved patterns of two groove widths (400 and 800 nm) at three depths (50 nm and 400 or 500 nm). The results showed that the deep nanogrooved surfaces (i.e., 400/400 and 800/500) induced formation of aligned, parallel F-actin and elongated nucleus morphology. Gene transfection was also reduced on the deep nanogrooved surfaces. Disruption of F-actin organization using Cytochalasin D (Cyto-D) restored the nuclear morphology accompanied by higher transfection efficiency, demonstrating that the reduction in gene expression on deep nanogrooves was due to cytoskeletal stretching and nucleus elongation. Spatiotemporal images of fluorescent-labeled PEI/DNA complexes showed that endocytosis of PEI/DNA complexes was retarded and DNA trafficking into the cell nucleus was reduced. This study demonstrates for the first time the important role of cytoskeletal organization and nuclear morphology in PEI-mediated gene transfection to skeletal myoblasts using nanogrooved patterns. These findings are informative for in vitro studies and could potentially be useful in in vivo intramuscular (IM) administration.
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Affiliation(s)
- Peng-Yuan Wang
- Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, Victoria, Australia.,Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Yen-Shiang Lian
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Ray Chang
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Wei-Hao Liao
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wen-Shiang Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wei-Bor Tsai
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
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84
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Yang K, Oh JY, Lee JS, Jin Y, Chang GE, Chae SS, Cheong E, Baik HK, Cho SW. Photoactive Poly(3-hexylthiophene) Nanoweb for Optoelectrical Stimulation to Enhance Neurogenesis of Human Stem Cells. Theranostics 2017; 7:4591-4604. [PMID: 29158847 PMCID: PMC5695151 DOI: 10.7150/thno.20169] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 09/15/2017] [Indexed: 12/19/2022] Open
Abstract
Optoelectrical manipulation has recently gained attention for cellular engineering; however, few material platforms can be used to efficiently regulate stem cell behaviors via optoelectrical stimulation. In this study, we developed nanoweb substrates composed of photoactive polymer poly(3-hexylthiophene) (P3HT) to enhance the neurogenesis of human fetal neural stem cells (hfNSCs) through photo-induced electrical stimulation. METHODS The photoactive nanoweb substrates were fabricated by self-assembled one-dimensional (1D) P3HT nanostructures (nanofibrils and nanorods). The hfNSCs cultured on the P3HT nanoweb substrates were optically stimulated with a green light (539 nm) and then differentiation of hfNSCs on the substrates with light stimulation was examined. The utility of the nanoweb substrates for optogenetic application was tested with photo-responsive hfNSCs engineered by polymer nanoparticle-mediated transfection of an engineered chimeric opsin variant (C1V1)-encoding gene. RESULTS The nanoweb substrates provided not only topographical stimulation for activating focal adhesion signaling of hfNSCs, but also generated optoelectrical stimulation via photochemical and charge-transfer reactions upon exposure to 539 nm wavelength light, leading to significantly enhanced neuronal differentiation of hfNSCs. The optoelectrically stimulated hfNSCs exhibited mature neuronal phenotypes with highly extended neurite formation and functional neuron-like electrophysiological features of sodium currents and action potentials. Optoelectrical stimulation with 539 nm light simultaneously activated both C1V1-modified hfNSCs and nanoweb substrates, which upregulated the expression and activation of voltage-gated ion channels in hfNSCs and further increased the effect of photoactive substrates on neuronal differentiation of hfNSCs. CONCLUSION The photoactive nanoweb substrates developed in this study may serve as platforms for producing stem cell therapeutics with enhanced neurogenesis and neuromodulation via optoelectrical control of stem cells.
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85
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Cha KJ, Kong SY, Lee JS, Kim HW, Shin JY, La M, Han BW, Kim DS, Kim HJ. Cell density-dependent differential proliferation of neural stem cells on omnidirectional nanopore-arrayed surface. Sci Rep 2017; 7:13077. [PMID: 29026125 PMCID: PMC5638797 DOI: 10.1038/s41598-017-13372-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 09/22/2017] [Indexed: 11/09/2022] Open
Abstract
Recently, the importance of surface nanotopography in the determination of stem cell fate and behavior has been revealed. In the current study, we generated polystyrene cell-culture dishes with an omnidirectional nanopore arrayed surface (ONAS) (diameter: 200 nm, depth: 500 nm, center-to-center distance: 500 nm) and investigated the effects of nanotopography on rat neural stem cells (NSCs). NSCs cultured on ONAS proliferated better than those on the flat surface when cell density was low and showed less spontaneous differentiation during proliferation in the presence of mitogens. Interestingly, NSCs cultured on ONAS at clonal density demonstrated a propensity to generate neurospheres, whereas those on the flat surface migrated out, proliferated as individuals, and spread out to attach to the surface. However, the differential patterns of proliferation were cell density-dependent since the distinct phenomena were lost when cell density was increased. ONAS modulated cytoskeletal reorganization and inhibited formation of focal adhesion, which is generally observed in NSCs grown on flat surfaces. ONAS appeared to reinforce NSC-NSC interaction, restricted individual cell migration and prohibited NSC attachment to the nanopore surface. These data demonstrate that ONAS maintains NSCs as undifferentiated while retaining multipotency and is a better topography for culturing low density NSCs.
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Affiliation(s)
- Kyoung Je Cha
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31 Hyoja-dong Nam-gu, Pohang, 790-784, South Korea.,Ultimate Fabrication Technology Group, Korea Institute of Industrial Technology (KITECH), Techno sunhwan-ro Yuga-myeon Dalseong-gun, Deagu, 711-880, South Korea
| | - Sun-Young Kong
- Laboratory of Molecular and Stem Cell Pharmacology, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong Dongjak-gu, Seoul, 156-756, South Korea
| | - Ji Soo Lee
- Laboratory of Molecular and Stem Cell Pharmacology, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong Dongjak-gu, Seoul, 156-756, South Korea
| | - Hyung Woo Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31 Hyoja-dong Nam-gu, Pohang, 790-784, South Korea
| | - Jae-Yeon Shin
- Laboratory of Molecular and Stem Cell Pharmacology, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong Dongjak-gu, Seoul, 156-756, South Korea
| | - Moonwoo La
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31 Hyoja-dong Nam-gu, Pohang, 790-784, South Korea.,Molds & Dies R&D Group, Korea Institute of Industrial Technology (KITECH), 156 Gaetbeol-ro, Yeonsu-gu, Incheon, 406-840, South Korea
| | - Byung Woo Han
- Department of Biochemistry, College of pharmacy, Seoul National University, San 56-1 Sillim-dong Gwanak-gu, Seoul, 151-742, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31 Hyoja-dong Nam-gu, Pohang, 790-784, South Korea.
| | - Hyun-Jung Kim
- Laboratory of Molecular and Stem Cell Pharmacology, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong Dongjak-gu, Seoul, 156-756, South Korea.
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86
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Ma J, Li C, Huang N, Wang X, Tong M, Ngan AHW, Chan BP. Multiphoton Fabrication of Fibronectin-Functionalized Protein Micropatterns: Stiffness-Induced Maturation of Cell-Matrix Adhesions in Human Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29469-29480. [PMID: 28809529 DOI: 10.1021/acsami.7b07064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cell-matrix adhesions are important structures governing the interactions between cells and their microenvironment at the cell-matrix interface. The focal complex (FC) and focal adhesion (FA) have been substantially investigated in conventional planar culture systems using fibroblasts as an in vitro model. However, the formation of more mature types of cell-matrix adhesion in human mesenchymal stem cells (hMSCs), including fibrillar adhesion (FBA) and 3D matrix adhesion (3DMA), have not been fully elucidated. Here we investigate the niche factor(s) that influence(s) the maturation of FBA and 3DMA by using multiphoton fabrication-based micropatterning. First, the bovine serum albumin (BSA)-made protein micropatterns were functionalized by incorporating various concentrations of fibronectin (FN) in fabrication solution. The amount of cross-linked FN is positively correlated with the initial concentration of FN in the reaction liquid, as verified by immunofluorescence staining. On the other hand, the anisotropic FN-functionalized micropatterns were fabricated by varying the length (i.e., in-plane stiffness) and height (i.e., bending stiffness) of micropatterns, respectively. Finally, hMSCs were cultured on these micropatterns for 2 h and 1 day to determine the formation of FBA and 3DMA, respectively, using immunofluorescence staining. Results demonstrated that FN-functionalized micropatterns with high anisotropy in x-y dimension benefit FBA maturation. Furthermore, niche factors such as higher bending and in-plane stiffness and the presence of abundant fibronectin have a positive effect on the maturation of FN-based cell-matrix adhesion. These findings could provide some new perspectives on designing platforms for further cell niche study and rationalizing scaffold design for tissue engineering.
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Affiliation(s)
- Jiaoni Ma
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
| | - Chuenwai Li
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
| | - Nan Huang
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
| | - Xinna Wang
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
| | - Minghui Tong
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
| | - Alfonso H W Ngan
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
| | - Barbara P Chan
- Tissue Engineering Laboratory, Department of Mechanical Engineering and ‡Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region, China
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87
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Hsu CH, Huang TY, Chen RD, Liu YX, Chin TY, Chen-Yang YW, Yeh JM. Biomolding Technique to Fabricate the Hierarchical Topographical Scaffold of POMA To Enhance the Differentiation of Neural Stem Cells. ACS Biomater Sci Eng 2017; 3:1527-1534. [PMID: 33429639 DOI: 10.1021/acsbiomaterials.7b00091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In this paper, a biomolding technique was first used to fabricate a scaffold of hierarchical topography with biomimetic morphology for tissue engineering. First, poly(ortho-methoxyaniline) (POMA) was synthesized by conventional oxidative polymerization, followed by characterizations with Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC). Moreover, the POMA scaffold with 3D biomimetic morphology was fabricated using poly(dimethylsiloxane) (PDMS) as negative soft template from natural leaf surfaces of Xanthosoma sagittifolium, followed by transferring the pattern of PDMS template to POMA. The as-fabricated POMA scaffold with biomimetic morphology was investigated by scanning electron microscopy (SEM). Subsequently, cell-scaffold interactions were carried out by culturing rat neural stem cells (rNSCs) on biomimetic and nonbiomimetic, or flat, POMA scaffolds, as well as on poly(d-lysine) (PDL)-coated substrate, and evaluating the corresponding adhesion, cell viability, and differentiation of rNSCs. Results showed that there was no significant difference in the attachment of rNSCs on the three surface types, however, both the biomimetic and flat POMA scaffolds induced growth arrest relative to the PDL-coated substrate. In addition, the percentage of cells with elongated neurites after 19 days of culture was higher on the biomimetic POMA scaffold relative to flat POMA and PDL. In summary, the POMA scaffold with biomimetic morphology shows promise in promoting rNSCs differentiation and neurite outgrowth for long-term studies on nerve regenerative medicine.
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Affiliation(s)
- Chien-Hua Hsu
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, ‡Master Program in Nanotechnology and Center for Nanotechnology, and §Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
| | - Ting-Yu Huang
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Master Program in Nanotechnology and Center for Nanotechnology, and §Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
| | - Rui-Da Chen
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Master Program in Nanotechnology and Center for Nanotechnology, and Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
| | - Yuan-Xian Liu
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Master Program in Nanotechnology and Center for Nanotechnology, and Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
| | - Ting-Yu Chin
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Master Program in Nanotechnology and Center for Nanotechnology, and Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
| | - Yui Whei Chen-Yang
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Master Program in Nanotechnology and Center for Nanotechnology, and Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
| | - Jui-Ming Yeh
- Department of Chemistry, Center for Nanotechnology and Institute of Biomedical Technology, Master Program in Nanotechnology and Center for Nanotechnology, and Department of Bioscience Technology, Centre for Nanotechnology and Institute of Biomedical Technology, Chung Yuan Christian University, Chung Li, Taiwan 32023, Republic of China
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88
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Kim HN, Jang KJ, Shin JY, Kang D, Kim SM, Koh I, Hong Y, Jang S, Kim MS, Kim BS, Jeong HE, Jeon NL, Kim P, Suh KY. Artificial Slanted Nanocilia Array as a Mechanotransducer for Controlling Cell Polarity. ACS NANO 2017; 11:730-741. [PMID: 28051852 DOI: 10.1021/acsnano.6b07134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We present a method to induce cell directional behavior using slanted nanocilia arrays. NIH-3T3 fibroblasts demonstrated bidirectional polarization in a rectangular arrangement on vertical nanocilia arrays and exhibited a transition from a bidirectional to a unidirectional polarization pattern when the angle of the nanocilia was decreased from 90° to 30°. The slanted nanocilia guided and facilitated spreading by allowing the cells to contact the sidewalls of the nanocilia, and the directional migration of the cells opposed the direction of the slant due to the anisotropic bending stiffness of the slanted nanocilia. Although the cells recognized the underlying anisotropic geometry when the nanocilia were coated with fibronectin, collagen type I, and Matrigel, the cells lost their directionality when the nanocilia were coated with poly-d-lysine and poly-l-lysine. Furthermore, although the cells recognized geometrical anisotropy on fibronectin coatings, pharmacological perturbation of PI3K-Rac signaling hindered the directional elongation of the cells on both the slanted and vertical nanocilia. Furthermore, myosin light chain II was required for the cells to obtain polarized morphologies. These results indicated that the slanted nanocilia array provided anisotropic contact guidance cues to the interacting cells. The polarization of cells was controlled through two steps: the recognition of underlying geometrical anisotropy and the subsequent directional spreading according to the guidance cues.
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Affiliation(s)
- Hong Nam Kim
- Center for BioMicrosystems, Brain Science Institute, Korea Institute of Science and Technology (KIST) , Seoul 136-791, Republic of Korea
| | - Kyung-Jin Jang
- Emulate Inc. , Boston, Massachusetts 02210, United States
| | - Jung-Youn Shin
- School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Republic of Korea
| | - Daeshik Kang
- Department of Mechanical Engineering, Ajou University , Suwon 443-749, Republic of Korea
| | - Sang Moon Kim
- Department of Mechanical Engineering, Incheon National University , Incheon 406-772, Republic of Korea
| | - Ilkyoo Koh
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, Republic of Korea
| | - Yoonmi Hong
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, Republic of Korea
| | - Segeun Jang
- School of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea
| | - Min Sung Kim
- School of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering, Seoul National University , Seoul 151-742, Republic of Korea
| | - Hoon Eui Jeong
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea
| | - Noo Li Jeon
- School of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea
| | - Pilnam Kim
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, Republic of Korea
| | - Kahp-Yang Suh
- School of Mechanical and Aerospace Engineering, Seoul National University , Seoul 151-742, Republic of Korea
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89
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Li Z, Wang W, Kratz K, Küchler J, Xu X, Zou J, Deng Z, Sun X, Gossen M, Ma N, Lendlein A. Influence of surface roughness on neural differentiation of human induced pluripotent stem cells. Clin Hemorheol Microcirc 2017; 64:355-366. [DOI: 10.3233/ch-168121] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhengdong Li
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität 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
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
| | - Judit Küchler
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Xun Xu
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Jie Zou
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Zijun Deng
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Xianlei Sun
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Manfred Gossen
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, 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, Freie Universität Berlin, Berlin, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
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90
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Chapman CAR, Wang L, Chen H, Garrison J, Lein PJ, Seker E. Nanoporous Gold Biointerfaces: Modifying Nanostructure to Control Neural Cell Coverage and Enhance Electrophysiological Recording Performance. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1604631. [PMID: 28626362 PMCID: PMC5471629 DOI: 10.1002/adfm.201604631] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Nanostructured neural interface coatings have significantly enhanced recording fidelity in both implantable and in vitro devices. As such, nano-porous gold (np-Au) has shown promise as a multifunctional neural interface coating due, in part, to its ability to promote nanostructure-mediated reduction in astrocytic surface coverage while not affecting neuronal coverage. The goal of this study is to provide insight into the mechanisms by which the np-Au nanostructure drives the differential response of neurons versus astrocytes in an in vitro model. Utilizing microfabricated libraries that display varying feature sizes of np-Au, it is demonstrated that np-Au influ-ences neural cell coverage through modulating focal adhesion formation in a feature size-dependent manner. The results here show that surfaces with small (≈30 nm) features control astrocyte spreading through inhibition of focal adhesion formation, while surfaces with large (≈170 nm and greater) features control astrocyte spreading through other mechanotransduction mechanisms. This cellular response combined with lower electrical impedance of np-Au electrodes significantly enhances the fidelity and stability of electrophysiological recordings from cortical neuronglia co-cultures relative to smooth gold electrodes. Finally, by leveraging the effect of nanostructure on neuronal versus glial cell attachment, the use of laser-based nanostructure modulation is demonstrated for selectively patterning neurons with micrometer spatial resolution.
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Affiliation(s)
| | - Ling Wang
- Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA 95616, USA
| | - Hao Chen
- Department of Molecular Biosciences, University of California, Davis, Davis, CA 95616, USA
| | - Joshua Garrison
- Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA 95616, USA
| | - Pamela J Lein
- Department of Molecular Biosciences, University of California, Davis, Davis, CA 95616, USA
| | - Erkin Seker
- Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA 95616, USA
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91
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Ferraro R, Ginestra P, Lanzi G, Giliani S, Ceretti E. Production of Micro-patterned Substrates to Direct Human iPSCs-derived Neural Stem Cells Orientation and Interaction. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.procir.2017.04.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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92
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Newman P, Galenano Niño JL, Graney P, Razal JM, Minett AI, Ribas J, Ovalle-Robles R, Biro M, Zreiqat H. Relationship between nanotopographical alignment and stem cell fate with live imaging and shape analysis. Sci Rep 2016; 6:37909. [PMID: 27910868 PMCID: PMC5133629 DOI: 10.1038/srep37909] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/02/2016] [Indexed: 12/14/2022] Open
Abstract
The topography of a biomaterial regulates cellular interactions and determine stem cell fate. A complete understanding of how topographical properties affect cell behavior will allow the rational design of material surfaces that elicit specified biological functions once placed in the body. To this end, we fabricate substrates with aligned or randomly organized fibrous nanostructured topographies. Culturing adipose-derived stem cells (ASCs), we explore the dynamic relationship between the alignment of topography, cell shape and cell differentiation to osteogenic and myogenic lineages. We show aligned topographies differentiate cells towards a satellite cell muscle progenitor state - a distinct cell myogenic lineage responsible for postnatal growth and repair of muscle. We analyze cell shape between the different topographies, using fluorescent time-lapse imaging over 21 days. In contrast to previous work, this allows the direct measurement of cell shape at a given time rather than defining the morphology of the underlying topography and neglecting cell shape. We report quantitative metrics of the time-based morphological behaviors of cell shape in response to differing topographies. This analysis offers insights into the relationship between topography, cell shape and cell differentiation. Cells differentiating towards a myogenic fate on aligned topographies adopt a characteristic elongated shape as well as the alignment of cells.
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Affiliation(s)
- Peter Newman
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Jorge Luis Galenano Niño
- EMBL Australia node in Single Molecule Science, School of Medical Sciences, The University of New South Wales, Sydney, Australia
| | - Pamela Graney
- Department of Biomedical Engineering, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Joselito M Razal
- Institute for Frontier Materials, Deakin University, Geelong, Victoria, 3216, Australia
| | - Andrew I Minett
- Laboratory for Sustainable Technology, Department of Chemical and Biomolecular Engineering, University of Sydney, NSW, 2006, Australia.,Australian Institute for Nanoscale Science and Technology, University of Sydney, NSW, 2006, Australia
| | - João Ribas
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, USA
| | - Raquel Ovalle-Robles
- Nano-Science &Technology Center, LINTEC of America Inc., Richardson, Texas 75081, USA
| | - Maté Biro
- EMBL Australia node in Single Molecule Science, School of Medical Sciences, The University of New South Wales, Sydney, Australia.,Sydney Medical School, The University of Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, Sydney, NSW, 2006, Australia
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93
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Wang PY, Thissen H, Kingshott P. Modulation of human multipotent and pluripotent stem cells using surface nanotopographies and surface-immobilised bioactive signals: A review. Acta Biomater 2016; 45:31-59. [PMID: 27596488 DOI: 10.1016/j.actbio.2016.08.054] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 07/30/2016] [Accepted: 08/30/2016] [Indexed: 02/08/2023]
Abstract
The ability to control the interactions of stem cells with synthetic surfaces is proving to be effective and essential for the quality of passaged stem cells and ultimately the success of regenerative medicine. The stem cell niche is crucial for stem cell self-renewal and differentiation. Thus, mimicking the stem cell niche, and here in particular the extracellular matrix (ECM), in vitro is an important goal for the expansion of stem cells and their applications. Here, surface nanotopographies and surface-immobilised biosignals have been identified as major factors that control stem cell responses. The development of tailored surfaces having an optimum nanotopography and displaying suitable biosignals is proposed to be essential for future stem cell culture, cell therapy and regenerative medicine applications. While early research in the field has been restricted by the limited availability of micro- and nanofabrication techniques, new approaches involving the use of advanced fabrication and surface immobilisation methods are starting to emerge. In addition, new cell types such as induced pluripotent stem cells (iPSCs) have become available in the last decade, but have not been fully understood. This review summarises significant advances in the area and focuses on the approaches that are aimed at controlling the behavior of human stem cells including maintenance of their self-renewal ability and improvement of their lineage commitment using nanotopographies and biosignals. More specifically, we discuss developments in biointerface science that are an important driving force for new biomedical materials and advances in bioengineering aiming at improving stem cell culture protocols and 3D scaffolds for clinical applications. Cellular responses revolve around the interplay between the surface properties of the cell culture substrate and the biomolecular composition of the cell culture medium. Determination of the precise role played by each factor, as well as the synergistic effects amongst the factors, all of which influence stem cell responses is essential for future developments. This review provides an overview of the current state-of-the-art in the design of complex material surfaces aimed at being the next generation of tools tailored for applications in cell culture and regenerative medicine. STATEMENT OF SIGNIFICANCE This review focuses on the effect of surface nanotopographies and surface-bound biosignals on human stem cells. Recently, stem cell research attracts much attention especially the induced pluripotent stem cells (iPSCs) and direct lineage reprogramming. The fast advance of stem cell research benefits disease treatment and cell therapy. On the other hand, surface property of cell adhered materials has been demonstrated very important for in vitro cell culture and regenerative medicine. Modulation of cell behavior using surfaces is costeffective and more defined. Thus, we summarise the recent progress of modulation of human stem cells using surface science. We believe that this review will capture a broad audience interested in topographical and chemical patterning aimed at understanding complex cellular responses to biomaterials.
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94
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Sallouh M, Jarocki M, Sallouh O, Degen P, Faissner A, Weberskirch R. The Synergistic Effect of Cationic Moieties and GRGDSF-Peptides in Hydrogels on Neural Stem Cell Behavior. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/27/2016] [Indexed: 01/11/2023]
Affiliation(s)
- Muhammad Sallouh
- Faculty of Chemistry and Chemical Biology; Otto-Hahn Str. 6, TU Dortmund 44227 Dortmund Germany
| | - Marvin Jarocki
- Department of Cell Morphology and Molecular Neurobiology; Ruhr-University Bochum; 44801 Bochum Germany
| | - Omar Sallouh
- Faculty of Chemistry and Chemical Biology; Otto-Hahn Str. 6, TU Dortmund 44227 Dortmund Germany
| | - Patrick Degen
- Dortmunder Elektronenspeicherringanlage (DELTA); Maria-Goeppert-Meyer Str. 2, TU Dortmund 44227 Dortmund Germany
| | - Andreas Faissner
- Department of Cell Morphology and Molecular Neurobiology; Ruhr-University Bochum; 44801 Bochum Germany
| | - Ralf Weberskirch
- Faculty of Chemistry and Chemical Biology; Otto-Hahn Str. 6, TU Dortmund 44227 Dortmund Germany
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95
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Ko E, Alberti K, Lee JS, Yang K, Jin Y, Shin J, Yang HS, Xu Q, Cho SW. Nanostructured Tendon-Derived Scaffolds for Enhanced Bone Regeneration by Human Adipose-Derived Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22819-22829. [PMID: 27502160 DOI: 10.1021/acsami.6b05358] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Decellularized matrix-based scaffolds can induce enhanced tissue regeneration due to their biochemical, biophysical, and mechanical similarity to native tissues. In this study, we report a nanostructured decellularized tendon scaffold with aligned, nanofibrous structures to enhance osteogenic differentiation and in vivo bone formation of human adipose-derived stem cells (hADSCs). Using a bioskiving method, we prepared decellularized tendon scaffolds from tissue slices of bovine Achilles and neck tendons with or without fixation, and investigated the effects on physical and mechanical properties of decellularized tendon scaffolds, based on the types and concentrations of cross-linking agents. In general, we found that decellularized tendon scaffolds without fixative treatments were more effective in inducing osteogenic differentiation and mineralization of hADSCs in vitro. When non-cross-linked decellularized tendon scaffolds were applied together with hydroxyapatite for hADSC transplantation in critical-sized bone defects, they promoted bone-specific collagen deposition and mineralized bone formation 4 and 8 weeks after hADSC transplantation, compared to conventional collagen type I scaffolds. Interestingly, stacking of decellularized tendon scaffolds cultured with osteogenically committed hADSCs and those containing human cord blood-derived endothelial progenitor cells (hEPCs) induced vascularized bone regeneration in the defects 8 weeks after transplantation. Our study suggests that biomimetic nanostructured scaffolds made of decellularized tissue matrices can serve as functional tissue-engineering scaffolds for enhanced osteogenesis of stem cells.
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Affiliation(s)
- Eunkyung Ko
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Kyle Alberti
- Department of Biomedical Engineering, Tufts University , Medford, Massachusetts 02155, United States
| | - Jong Seung Lee
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Kisuk Yang
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Yoonhee Jin
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Jisoo Shin
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Hee Seok Yang
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
| | - Qiaobing Xu
- Department of Biomedical Engineering, Tufts University , Medford, Massachusetts 02155, United States
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
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96
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Ding S, Kingshott P, Thissen H, Pera M, Wang PY. Modulation of human mesenchymal and pluripotent stem cell behavior using biophysical and biochemical cues: A review. Biotechnol Bioeng 2016; 114:260-280. [DOI: 10.1002/bit.26075] [Citation(s) in RCA: 298] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/27/2016] [Accepted: 08/07/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Sheryl Ding
- Department of Chemistry and Biotechnology; Swinburne University of Technology; Hawthorn 3122 Victoria Australia
| | - Peter Kingshott
- Department of Chemistry and Biotechnology; Swinburne University of Technology; Hawthorn 3122 Victoria Australia
| | | | - Martin Pera
- Department of Anatomy and Neuroscience, Walter and Eliza Hall Institute of Medical Research, Florey Neuroscience and Mental Health Institute; The University of Melbourne; Victoria Australia
| | - Peng-Yuan Wang
- Department of Chemistry and Biotechnology; Swinburne University of Technology; Hawthorn 3122 Victoria Australia
- CSIRO Manufacturing; Clayton Victoria Australia
- Department of Anatomy and Neuroscience, Walter and Eliza Hall Institute of Medical Research, Florey Neuroscience and Mental Health Institute; The University of Melbourne; Victoria Australia
- Graduate Institute of Nanomedicine and Medical Engineering; College of Biomedical Engineering; Taipei Medical University; Taipei Taiwan
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97
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Song L, Wang K, Li Y, Yang Y. Nanotopography promoted neuronal differentiation of human induced pluripotent stem cells. Colloids Surf B Biointerfaces 2016; 148:49-58. [PMID: 27591570 DOI: 10.1016/j.colsurfb.2016.08.041] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/20/2016] [Accepted: 08/23/2016] [Indexed: 01/27/2023]
Abstract
Inefficient neural differentiation of human induced pluripotent stem cells (hiPSCs) motivates recent investigation of the influence of biophysical characteristics of cellular microenvironment, in particular nanotopography, on hiPSC fate decision. However, the roles of geometry and dimensions of nanotopography in neural lineage commitment of hiPSCs have not been well understood. The objective of this study is to delineate the effects of geometry, feature size and height of nanotopography on neuronal differentiation of hiPSCs. HiPSCs were seeded on equally spaced nanogratings (500 and 1000nm in linewidth) and hexagonally arranged nanopillars (500nm in diameter), each having a height of 150 or 560nm, and induced for neuronal differentiation in concert with dual Smad inhibitors. The gratings of 560nm height reduced cell proliferation, enhanced cytoplasmic localization of Yes-associated protein, and promoted neuronal differentiation (up to 60% βIII-tubulin+ cells) compared with the flat control. Nanograting-induced cell polarity and cytoplasmic YAP localization were shown to be critical to the induced neural differentiation of hiPSCs. The derived neuronal cells express MAP2, Tau, glutamate, GABA and Islet-1, indicating the existence of multiple neuronal subtypes. This study contributes to the delineation of cell-nanotopography interactions and provides the insights into the design of nanotopography configuration for pluripotent stem cell neural lineage commitment.
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Affiliation(s)
- Liqing Song
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32310, United States
| | - Kai Wang
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, United States
| | - Yan Li
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32310, United States.
| | - Yong Yang
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, United States.
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98
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Mou X, Wang S, Guo W, Ji S, Qiu J, Li D, Zhang X, Zhou J, Tang W, Wang C, Liu H. Localized committed differentiation of neural stem cells based on the topographical regulation effects of TiO2 nanostructured ceramics. NANOSCALE 2016; 8:13186-13191. [PMID: 27346410 DOI: 10.1039/c6nr01874b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, a porous-flat TiO2 micropattern was fabricated with flat and nanoporous TiO2 ceramics for investigating the effect of topography on neural stem cell (NSC) differentiation. This finding demonstrates that localized committed differentiation could be achieved in one system by integrating materials with different topographies.
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Affiliation(s)
- Xiaoning Mou
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences; National Center for Nanoscience and Technology (NCNST), Beijing, 100083, P. R. China.
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99
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Yang K, Lee J, Lee JS, Kim D, Chang GE, Seo J, Cheong E, Lee T, Cho SW. Graphene Oxide Hierarchical Patterns for the Derivation of Electrophysiologically Functional Neuron-like Cells from Human Neural Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:17763-17774. [PMID: 27320202 DOI: 10.1021/acsami.6b01804] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Graphene has shown great potential for biomedical engineering applications due to its electrical conductivity, mechanical strength, flexibility, and biocompatibility. Topographical cues of culture substrates or tissue-engineering scaffolds regulate the behaviors and fate of stem cells. In this study, we developed a graphene oxide (GO)-based patterned substrate (GPS) with hierarchical structures capable of generating synergistic topographical stimulation to enhance integrin clustering, focal adhesion, and neuronal differentiation in human neural stem cells (hNSCs). The hierarchical structures of the GPS were composed of microgrooves (groove size: 5, 10, and 20 μm), ridges (height: 100-200 nm), and nanoroughness surfaces (height: ∼10 nm). hNSCs grown on the GPS exhibited highly elongated, aligned neurite extension along the ridge of the GPS and focal adhesion development that was enhanced compared to that of cells grown on GO-free flat substrates and GO substrates without the hierarchical structures. In particular, GPS with a groove width of 5 μm was found to be the most effective in activating focal adhesion signaling, such as the phosphorylation of focal adhesion kinase and paxillin, thereby improving neuronal lineage commitment. More importantly, electrophysiologically functional neuron-like cells exhibiting sodium channel currents and action potentials could be derived from hNSCs differentiated on the GPS even in the absence of any of the chemical agents typically required for neurogenesis. Our study demonstrates that GPS could be an effective culture platform for the generation of functional neuron-like cells from hNSCs, providing potent therapeutics for treating neurodegenerative diseases and neuronal disorders.
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Affiliation(s)
- Kisuk Yang
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
- Department of Biomaterials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Jaehong Lee
- School of Electrical and Electronic Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Jong Seung Lee
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Dayeong Kim
- School of Electrical and Electronic Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Gyeong-Eon Chang
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Jungmok Seo
- School of Electrical and Electronic Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Eunji Cheong
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
| | - Taeyoon Lee
- School of Electrical and Electronic Engineering, Yonsei University , Seoul 120-749, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University , Seoul 120-749, Republic of Korea
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Huang TH, Pei Y, Zhang D, Li Y, Kilian KA. Patterned porous silicon photonic crystals with modular surface chemistry for spatial control of neural stem cell differentiation. NANOSCALE 2016; 8:10891-10895. [PMID: 27173986 DOI: 10.1039/c5nr08327c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a strategy to spatially define regions of gold and nanostructured silicon photonics, each with materials-specific surface chemistry, for azide-alkyne cycloaddition of different bioactive peptides. Neural stem cells are spatially directed to undergo neurogenesis and astrogenesis as a function of both surface properties and peptide identity.
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Affiliation(s)
- Tiffany H Huang
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61874, USA.
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