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Hong H, Park SM, Kim D, Park SJ, Kim DS. Grayscale mask‐assisted photochemical crosslinking for a dense collagen construct with stiffness gradient. J Biomed Mater Res B Appl Biomater 2019; 108:1000-1009. [DOI: 10.1002/jbm.b.34452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 06/12/2019] [Accepted: 07/17/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Hyeonjun Hong
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH) 77 Cheongam‐ro, Pohang Gyeongbuk 37673 South Korea
| | - Sang Min Park
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH) 77 Cheongam‐ro, Pohang Gyeongbuk 37673 South Korea
| | - Dohui Kim
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH) 77 Cheongam‐ro, Pohang Gyeongbuk 37673 South Korea
| | - Sung Jea Park
- Advanced Technology Research Center & School of Mechanical EngineeringKorea University of Technology and Education (KOREATECH) Cheonan Chungnam 31253 South Korea
| | - Dong Sung Kim
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH) 77 Cheongam‐ro, Pohang Gyeongbuk 37673 South Korea
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2
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Liu AP, Chaudhuri O, Parekh SH. New advances in probing cell-extracellular matrix interactions. Integr Biol (Camb) 2017; 9:383-405. [PMID: 28352896 PMCID: PMC5708530 DOI: 10.1039/c6ib00251j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 03/20/2017] [Indexed: 12/17/2022]
Abstract
The extracellular matrix (ECM) provides structural and biochemical support to cells within tissues. An emerging body of evidence has established that the ECM plays a key role in cell mechanotransduction - the study of coupling between mechanical inputs and cellular phenotype - through either mediating transmission of forces to the cells, or presenting mechanical cues that guide cellular behaviors. Recent progress in cell mechanotransduction research has been facilitated by advances of experimental tools, particularly microtechnologies, engineered biomaterials, and imaging and analytical methods. Microtechnologies have enabled the design and fabrication of controlled physical microenvironments for the study and measurement of cell-ECM interactions. Advances in engineered biomaterials have allowed researchers to develop synthetic ECMs that mimic tissue microenvironments and investigate the impact of altered physicochemical properties on various cellular processes. Finally, advanced imaging and spectroscopy techniques have facilitated the visualization of the complex interaction between cells and ECM in vitro and in living tissues. This review will highlight the application of recent innovations in these areas to probing cell-ECM interactions. We believe cross-disciplinary approaches, combining aspects of the different technologies reviewed here, will inspire innovative ideas to further elucidate the secrets of ECM-mediated cell control.
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Affiliation(s)
- Allen P. Liu
- Department of Mechanical Engineering , University of Michigan , Ann Arbor , MI 48109 , USA .
- Department of Biomedical Engineering , University of Michigan , Ann Arbor , MI 48109 , USA
- Cellular and Molecular Biology Program , University of Michigan , Ann Arbor , MI 48109 , USA
- Biophysics Program , University of Michigan , Ann Arbor , MI 48109 , USA
| | - Ovijit Chaudhuri
- Department of Mechanical Engineering , Stanford University , Stanford , CA 94305 , USA .
| | - Sapun H. Parekh
- Department of Molecular Spectroscopy , Max Planck Institute for Polymer Research , Mainz 55128 , Germany .
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3
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Sciancalepore AG, Portone A, Moffa M, Persano L, De Luca M, Paiano A, Sallustio F, Schena FP, Bucci C, Pisignano D. Micropatterning control of tubular commitment in human adult renal stem cells. Biomaterials 2016; 94:57-69. [PMID: 27105437 DOI: 10.1016/j.biomaterials.2016.03.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 03/19/2016] [Accepted: 03/28/2016] [Indexed: 12/12/2022]
Abstract
The treatment of renal injury by autologous, patient-specific adult stem cells is still an unmet need. Unsolved issues remain the spatial integration of stem cells into damaged areas of the organ, the commitment in the required cell type and the development of improved bioengineered devices. In this respect, biomaterials and architectures have to be specialized to control stem cell differentiation. Here, we perform an extensive study on micropatterned extracellular matrix proteins, which constitute a simple and non-invasive approach to drive the differentiation of adult renal progenitor/stem cells (ARPCs) from human donors. ARPCs are interfaced with fibronectin (FN) micropatterns, in the absence of exogenous chemicals or cellular reprogramming. We obtain the differentiation towards tubular cells of ARPCs cultured in basal medium conditions, the tubular commitment thus being specifically induced by micropatterned substrates. We characterize the stability of the tubular differentiation as well as the induction of a polarized phenotype in micropatterned ARPCs. Thus, the developed cues, driving the functional commitment of ARPCs, offer a route to recreate the microenvironment of the stem cell niche in vitro, that may serve, in perspective, for the development of ARPC-based bioengineered devices.
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Affiliation(s)
- Anna G Sciancalepore
- Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, 73100 Lecce, Italy; Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia, via Barsanti, 73010 Arnesano, Lecce, Italy.
| | - Alberto Portone
- Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, 73100 Lecce, Italy; Dipartimento di Matematica e Fisica "Ennio De Giorgi", Università del Salento, via Arnesano, 73100 Lecce, Italy
| | - Maria Moffa
- Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, 73100 Lecce, Italy; Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia, via Barsanti, 73010 Arnesano, Lecce, Italy
| | - Luana Persano
- Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, 73100 Lecce, Italy
| | - Maria De Luca
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (DiSTeBA), Università del Salento, via Provinciale Monteroni, 73100 Lecce, Italy
| | - Aurora Paiano
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (DiSTeBA), Università del Salento, via Provinciale Monteroni, 73100 Lecce, Italy
| | - Fabio Sallustio
- Nephrology, Dialysis and Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; Centro Addestramento Ricerca Scientifica in Oncologia (C.A.R.S.O.) Consortium, Strada Prov. le Valenzano-Casamassima, 70010 Valenzano, Italy
| | - Francesco P Schena
- Nephrology, Dialysis and Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy; Centro Addestramento Ricerca Scientifica in Oncologia (C.A.R.S.O.) Consortium, Strada Prov. le Valenzano-Casamassima, 70010 Valenzano, Italy
| | - Cecilia Bucci
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (DiSTeBA), Università del Salento, via Provinciale Monteroni, 73100 Lecce, Italy
| | - Dario Pisignano
- Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, 73100 Lecce, Italy; Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia, via Barsanti, 73010 Arnesano, Lecce, Italy; Dipartimento di Matematica e Fisica "Ennio De Giorgi", Università del Salento, via Arnesano, 73100 Lecce, Italy.
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Nakayama KH, Surya VN, Gole M, Walker T, Yang W, Lai ES, Ostrowski M, Fuller GG, Dunn AR, Huang NF. Nanoscale Patterning of Extracellular Matrix Alters Endothelial Function under Shear Stress. NANO LETTERS 2016; 16:410-419. [PMID: 26670737 PMCID: PMC4758680 DOI: 10.1021/acs.nanolett.5b04028] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The role of nanotopographical extracellular matrix (ECM) cues in vascular endothelial cell (EC) organization and function is not well-understood, despite the composition of nano- to microscale fibrillar ECMs within blood vessels. Instead, the predominant modulator of EC organization and function is traditionally thought to be hemodynamic shear stress, in which uniform shear stress induces parallel-alignment of ECs with anti-inflammatory function, whereas disturbed flow induces a disorganized configuration with pro-inflammatory function. Since shear stress acts on ECs by applying a mechanical force concomitant with inducing spatial patterning of the cells, we sought to decouple the effects of shear stress using parallel-aligned nanofibrillar collagen films that induce parallel EC alignment prior to stimulation with disturbed flow resulting from spatial wall shear stress gradients. Using real time live-cell imaging, we tracked the alignment, migration trajectories, proliferation, and anti-inflammatory behavior of ECs when they were cultured on parallel-aligned or randomly oriented nanofibrillar films. Intriguingly, ECs cultured on aligned nanofibrillar films remained well-aligned and migrated predominantly along the direction of aligned nanofibrils, despite exposure to shear stress orthogonal to the direction of the aligned nanofibrils. Furthermore, in stark contrast to ECs cultured on randomly oriented films, ECs on aligned nanofibrillar films exposed to disturbed flow had significantly reduced inflammation and proliferation, while maintaining intact intercellular junctions. This work reveals fundamental insights into the importance of nanoscale ECM interactions in the maintenance of endothelial function. Importantly, it provides new insight into how ECs respond to opposing cues derived from nanotopography and mechanical shear force and has strong implications in the design of polymeric conduits and bioengineered tissues.
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Affiliation(s)
- Karina H. Nakayama
- Stanford Cardiovascular Institute, Stanford, CA
- Department of Cardiothoracic Surgery, Stanford School of Medicine, Stanford, CA
- Veterans Affairs Palo Alto Health Care System, Palo Alto
| | - Vinay N. Surya
- Stanford Cardiovascular Institute, Stanford, CA
- Department of Chemical Engineering, Stanford University School of Engineering, Stanford, CA
| | - Monica Gole
- Veterans Affairs Palo Alto Health Care System, Palo Alto
| | - Travis Walker
- Department of Chemical Engineering, Oregon State University, Corvallis, OR
| | - Weiguang Yang
- Department of Pediatrics, Stanford School of Medicine, Stanford, CA
| | - Edwina S. Lai
- Department of Chemical Engineering, Stanford University School of Engineering, Stanford, CA
| | - Maggie Ostrowski
- Department of Chemical Engineering, Stanford University School of Engineering, Stanford, CA
| | - Gerald G. Fuller
- Department of Chemical Engineering, Stanford University School of Engineering, Stanford, CA
| | - Alexander R. Dunn
- Stanford Cardiovascular Institute, Stanford, CA
- Department of Chemical Engineering, Stanford University School of Engineering, Stanford, CA
| | - Ngan F. Huang
- Stanford Cardiovascular Institute, Stanford, CA
- Department of Cardiothoracic Surgery, Stanford School of Medicine, Stanford, CA
- Veterans Affairs Palo Alto Health Care System, Palo Alto
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5
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Geng Y, Wang Z. Review of cellular mechanotransduction on micropost substrates. Med Biol Eng Comput 2015; 54:249-71. [PMID: 26245253 DOI: 10.1007/s11517-015-1343-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 07/07/2015] [Indexed: 01/09/2023]
Abstract
As physical entities, living cells can sense and respond to various stimulations within and outside the body through cellular mechanotransduction. Any deviation in cellular mechanotransduction will not only undermine the orchestrated regulation of mechanical responses, but also lead to the breakdown of their physiological function. Therefore, a quantitative study of cellular mechanotransduction needs to be conducted both in experiments and in computational simulations to investigate the underlying mechanisms of cellular mechanotransduction. In this review, we present an overview of the current knowledge and significant progress in cellular mechanotransduction via micropost substrates. In the aspect of experimental studies, we summarize significant experimental progress and place an emphasis on the coupled relationship among cellular spreading, focal adhesion and contractility as well as the influence of substrate properties on force-involved cellular behaviors. In the other aspect of computational investigations, we outline a coupled framework including the biochemically motivated stress fiber model and thermodynamically motivated adhesion model and present their predicted biomechanical responses and then compare predicted simulation results with experimental observations to further explore the mechanisms of cellular mechanotransduction. At last, we discuss the future perspectives both in experimental technologies and in computational models, as well as facing challenges in the area of cellular mechanotransduction.
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Affiliation(s)
- Yuxu Geng
- State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030, China
| | - Zhanjiang Wang
- State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030, China.
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Abstract
Spatially patterned subtractive de-inking, a process we term "stamp-off," provides a simple method to generate sparse, multicomponent protein micropatterns. It has been applied to control cell adhesion, study adhesion biology, as well as to micropattern fragile surfaces. This technique can also readily be applied to study nanoscale interactions between cell membrane receptors and surface-immobilized ligands. It is based on conventional microcontact printing and as such requires the same reagents, including photolithographically defined masters, a spin-coater, poly(dimethyl siloxane) (PDMS), and conventional cell culture reagents such as glass coverslips and adhesive proteins. Stamp-off is conceptually simplified into three steps: (1) generation of an appropriate cell culture substrate, PDMS-coated glass, (2) micropatterning with stamp-off, and (3) cell deposition. After elaborating each of these three methods, we discuss limitations of the technique and its applications.
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Affiliation(s)
- Ravi A Desai
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania USA; Max Planck Institute for Molecular Cell Biology and Genetics, Dresden, Germany; Medical Research Council, National Institute of Medical Research, London, United Kingdom; University College London, London, United Kingdom
| | - Natalia M Rodriguez
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania USA; Department of Biomedical Engineering, Boston University, Boston, Massachusetts, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, USA
| | - Christopher S Chen
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania USA; Department of Biomedical Engineering, Boston University, Boston, Massachusetts, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, USA
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Fabbro A, Prato M, Ballerini L. Carbon nanotubes in neuroregeneration and repair. Adv Drug Deliv Rev 2013; 65:2034-44. [PMID: 23856411 DOI: 10.1016/j.addr.2013.07.002] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 04/29/2013] [Accepted: 07/05/2013] [Indexed: 01/16/2023]
Abstract
In the last decade, we have experienced an increasing interest and an improved understanding of the application of nanotechnology to the nervous system. The aim of such studies is that of developing future strategies for tissue repair to promote functional recovery after brain damage. In this framework, carbon nanotube based technologies are emerging as particularly innovative tools due to the outstanding physical properties of these nanomaterials together with their recently documented ability to interface neuronal circuits, synapses and membranes. This review will discuss the state of the art in carbon nanotube technology applied to the development of devices able to drive nerve tissue repair; we will highlight the most exciting findings addressing the impact of carbon nanotubes in nerve tissue engineering, focusing in particular on neuronal differentiation, growth and network reconstruction.
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