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Arora P, Sindhu A, Dilbaghi N, Chaudhury A, Rajakumar G, Rahuman AA. Nano-regenerative medicine towards clinical outcome of stem cell and tissue engineering in humans. J Cell Mol Med 2012; 16:1991-2000. [PMID: 22260258 PMCID: PMC3822969 DOI: 10.1111/j.1582-4934.2012.01534.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Accepted: 01/10/2012] [Indexed: 01/24/2023] Open
Abstract
Nanotechnology is a fast growing area of research that aims to create nanomaterials or nanostructures development in stem cell and tissue-based therapies. Concepts and discoveries from the fields of bio nano research provide exciting opportunities of using stem cells for regeneration of tissues and organs. The application of nanotechnology to stem-cell biology would be able to address the challenges of disease therapeutics. This review covers the potential of nanotechnology approaches towards regenerative medicine. Furthermore, it focuses on current aspects of stem- and tissue-cell engineering. The magnetic nanoparticles-based applications in stem-cell research open new frontiers in cell and tissue engineering.
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Affiliation(s)
- Pooja Arora
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
| | - Annu Sindhu
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
| | - Ashok Chaudhury
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
- Crop Science Department, North Carolina State UniversityRaleigh, NC, USA
| | - Govindasamy Rajakumar
- Unit of Nanotechnology and Bioactive Natural Products, C. Abdul Hakeem CollegeVellore, Tamil Nadu, India
| | - Abdul Abdul Rahuman
- Unit of Nanotechnology and Bioactive Natural Products, C. Abdul Hakeem CollegeVellore, Tamil Nadu, India
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Kim DH, Kshitiz, Smith RR, Kim P, Ahn EH, Kim HN, Marbán E, Suh KY, Levchenko A. Nanopatterned cardiac cell patches promote stem cell niche formation and myocardial regeneration. Integr Biol (Camb) 2012; 4:1019-33. [PMID: 22890784 DOI: 10.1039/c2ib20067h] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Stem cell-based methods for myocardial regeneration suffer from considerable cell attrition. Artificial matrices reproducing mechanical and structural properties of the native tissue may facilitate survival, retention and functional integration of adult stem or progenitor cells, by conditioning the cells prior to, and during, transplantation. Here we combined autologous cardiosphere-derived cells (CDCs) with nanotopographically defined hydrogels mimicking the native myocardial matrix, to form in vitro cardiac stem cell niches, and control cell function and fate. These platforms were used to produce cardiac patches that could be transplanted at the site of infarct. In culture, highly anisotropic, but not more randomized nanotopographic, control augmented cell adhesion, migration, and proliferation. It also dramatically enhanced early, and, in the presence of mature cardiomyocytes, late cardiomyogenesis. Nanotopography sensing and transcriptional response was mediated via p190RhoGAP. In a rat infarction model, engraftment of nanofabricated scaffolds with CDCs enhanced retention and growth of transplanted cells, and their integration with the host tissue. The infarcted ventricle wall increased in thickness, with higher cell viability and better collagen organization. These results suggest that nanostructured polymeric materials that closely mimic the extracellular matrix structure on which cardiac cells reside in vivo can be both very effective tools in investigating the mechanisms of cardiac differentiation and the basis for cardiac tissue engineering, thus facilitating stem cell-based therapy in the heart.
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Affiliation(s)
- Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98109, USA.
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53
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A new mechanobiological era: microfluidic pathways to apply and sense forces at the cellular level. Curr Opin Chem Biol 2012; 16:400-8. [DOI: 10.1016/j.cbpa.2012.03.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 01/09/2023]
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54
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Mimicking dynamic in vivo environments with stimuli-responsive materials for cell culture. Trends Biotechnol 2012; 30:426-39. [DOI: 10.1016/j.tibtech.2012.04.003] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 04/17/2012] [Accepted: 04/18/2012] [Indexed: 12/27/2022]
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Kwiat M, Elnathan R, Pevzner A, Peretz A, Barak B, Peretz H, Ducobni T, Stein D, Mittelman L, Ashery U, Patolsky F. Highly ordered large-scale neuronal networks of individual cells - toward single cell to 3D nanowire intracellular interfaces. ACS APPLIED MATERIALS & INTERFACES 2012; 4:3542-9. [PMID: 22724437 DOI: 10.1021/am300602e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The use of artificial, prepatterned neuronal networks in vitro is a promising approach for studying the development and dynamics of small neural systems in order to understand the basic functionality of neurons and later on of the brain. The present work presents a high fidelity and robust procedure for controlling neuronal growth on substrates such as silicon wafers and glass, enabling us to obtain mature and durable neural networks of individual cells at designed geometries. It offers several advantages compared to other related techniques that have been reported in recent years mainly because of its high yield and reproducibility. The procedure is based on surface chemistry that allows the formation of functional, tailormade neural architectures with a micrometer high-resolution partition, that has the ability to promote or repel cells attachment. The main achievements of this work are deemed to be the creation of a large scale neuronal network at low density down to individual cells, that develop intact typical neurites and synapses without any glia-supportive cells straight from the plating stage and with a relatively long term survival rate, up to 4 weeks. An important application of this method is its use on 3D nanopillars and 3D nanowire-device arrays, enabling not only the cell bodies, but also their neurites to be positioned directly on electrical devices and grow with registration to the recording elements underneath.
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Affiliation(s)
- Moria Kwiat
- School of Chemistry, The Raymond and Beverly Sackler Faculty of Exact Sciences, ‡Department of Physiology, Sackler Medical School, and §Department of Neurobiology, The George S. Wise Faculty of Life Sciences, School of Neuroscience, Tel Aviv University , Tel Aviv 69978, Israel
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Tong WY, Shen W, Yeung CWF, Zhao Y, Cheng SH, Chu PK, Chan D, Chan GCF, Cheung KMC, Yeung KWK, Lam YW. Functional replication of the tendon tissue microenvironment by a bioimprinted substrate and the support of tenocytic differentiation of mesenchymal stem cells. Biomaterials 2012; 33:7686-98. [PMID: 22818988 DOI: 10.1016/j.biomaterials.2012.07.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 07/01/2012] [Indexed: 10/28/2022]
Abstract
Although many studies have demonstrated that cell phenotype is affected by the surface properties of biomaterials, these materials often fail to mimic the complexity of the native tissue microenvironment (TME). In this study, we have developed a new experimental model that allows the characterisation and functional reconstruction of natural TME. We discovered that mesenchymal stem cells (MSC) cultured on cryostat sections of bovine Achilles tendon adopted an elongated and aligned morphology, and expressed tenocyte marker tenomodulin (TNMD). This suggests that tendon sections contain the signalling cues that guide MSCs to commit to the tenogenic lineage. To reconstruct this instructive niche, we prepared PDMS replica by using tendon sections as template. The resulting bioimprint faithfully copied the physical topography and elasticity of the section. This replica, when coated with collagen 1, supported tenogenesis of MSC without requiring exogenous growth factors. This study illustrates how extracellular biophysical and biochemical features intertwines to form a niche that influences the cell fate and demonstrated that such complex information could be conveniently reconstructed with synthetic materials and purified extracellular matrix proteins.
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Affiliation(s)
- Wing Yin Tong
- Departments of Orthopaedics & Traumatology, The University of Hong Kong, Hong Kong, China
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Kim J, Kim DH, Lim KT, Seonwoo H, Park SH, Kim YR, Kim Y, Choung YH, Choung PH, Chung JH. Charged nanomatrices as efficient platforms for modulating cell adhesion and shape. Tissue Eng Part C Methods 2012; 18:913-23. [PMID: 22621374 DOI: 10.1089/ten.tec.2011.0731] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this article, we describe the design and manipulation of charged nanomatrices and their application as efficient platforms for modulating cell behaviors. Using electrospraying technology and well designed biomaterials, poly(ɛ-caprolactone; PCL) and polyethylenimine, the negatively charged PCL nanomatrix (nPCL nanomatrix) and the positively charged PCL nanomatrix (pPCL nanomatrix) were fabricated. It was demonstrated that cell adhesion, affinity, and shape were sensitively modulated in negatively and positively charged nanomatrices. Our results showed that the pPCL nanomatrix promoted adhesion of NIH 3T3 fibroblast cells as compared to the nPCL nanomatrix. When fluid shear stress was applied, cell affinity on the pPCL nanomatrix increased even more. NIH 3T3 fibroblast cells adopted a relatively spherical shape on the pPCL nanomatrix while adopting an aligned, narrow shape on the nPCL nanomatrix. It was also found that charged nanomatrices influenced the cross-sectional cell shape. The cross-sectional cell shape on the pPCL nanomatrix was extremely flattened, whereas the cross-sectional cell shape was relatively round on the nPCL nanomatrix and some of the adhered cells floated. We also showed that the surfaces of the nPCL and pPCL nanomatrices adsorbed the different serum proteins. These results collectively demonstrated a combination of environmental factors including nanoscale structure, electrostatic forces, and absorption of biomolecules on charged substrates affected cell response in terms of cellular adhesion and shape.
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Affiliation(s)
- Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, Republic of Korea
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Sun Y, Weng S, Fu J. Microengineered synthetic cellular microenvironment for stem cells. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2012; 4:414-27. [PMID: 22639443 PMCID: PMC4109891 DOI: 10.1002/wnan.1175] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Stem cells possess the ability of self-renewal and differentiation into specific cell types. Therefore, stem cells have great potentials in fundamental biology studies and clinical applications. The most urgent desire for stem cell research is to generate appropriate artificial stem cell culture system, which can mimic the dynamic complexity and precise regulation of the in vivo biochemical and biomechanical signals, to regulate and direct stem cell behaviors. Precise control and regulation of the biochemical and biomechanical stimuli to stem cells have been successfully achieved using emerging micro/nanoengineering techniques. This review provides insights into how these micro/nanoengineering approaches, particularly microcontact printing and elastomeric micropost array, are applied to create dynamic and complex environment for stem cells culture.
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Affiliation(s)
- Yubing Sun
- Integrated Biosystems and Biomechanics Laboratory, Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Shinuo Weng
- Integrated Biosystems and Biomechanics Laboratory, Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Jianping Fu
- Integrated Biosystems and Biomechanics Laboratory, Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
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Kim DH, Provenzano PP, Smith CL, Levchenko A. Matrix nanotopography as a regulator of cell function. ACTA ACUST UNITED AC 2012; 197:351-60. [PMID: 22547406 PMCID: PMC3341161 DOI: 10.1083/jcb.201108062] [Citation(s) in RCA: 414] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The architecture of the extracellular matrix (ECM) directs cell behavior by providing spatial and mechanical cues to which cells respond. In addition to soluble chemical factors, physical interactions between the cell and ECM regulate primary cell processes, including differentiation, migration, and proliferation. Advances in microtechnology and, more recently, nanotechnology provide a powerful means to study the influence of the ECM on cell behavior. By recapitulating local architectures that cells encounter in vivo, we can elucidate and dissect the fundamental signal transduction pathways that control cell behavior in critical developmental, physiological, and pathological processes.
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Affiliation(s)
- Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA.
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Kshitiz, Hubbi ME, Ahn EH, Downey J, Afzal J, Kim DH, Rey S, Chang C, Kundu A, Semenza GL, Abraham RM, Levchenko A. Matrix rigidity controls endothelial differentiation and morphogenesis of cardiac precursors. Sci Signal 2012; 5:ra41. [PMID: 22669846 PMCID: PMC11055637 DOI: 10.1126/scisignal.2003002] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Tissue development and regeneration involve tightly coordinated and integrated processes: selective proliferation of resident stem and precursor cells, differentiation into target somatic cell type, and spatial morphological organization. The role of the mechanical environment in the coordination of these processes is poorly understood. We show that multipotent cells derived from native cardiac tissue continually monitored cell substratum rigidity and showed enhanced proliferation, endothelial differentiation, and morphogenesis when the cell substratum rigidity closely matched that of myocardium. Mechanoregulation of these diverse processes required p190RhoGAP, a guanosine triphosphatase-activating protein for RhoA, acting through RhoA-dependent and -independent mechanisms. Natural or induced decreases in the abundance of p190RhoGAP triggered a series of developmental events by coupling cell-cell and cell-substratum interactions to genetic circuits controlling differentiation.
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Affiliation(s)
- Kshitiz
- Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Vascular Biology, Institute for Cell Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Maimon E. Hubbi
- Vascular Biology, Institute for Cell Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Eun Hyun Ahn
- Department of Pathology, School of Medicine, University of Washington, Seattle, WA 98195, USA
| | - John Downey
- Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Junaid Afzal
- Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Deok-Ho Kim
- Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Department of Bioengineering, School of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Sergio Rey
- Vascular Biology, Institute for Cell Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Connie Chang
- Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Arnab Kundu
- Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Vascular Biology, Institute for Cell Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Gregg L. Semenza
- Vascular Biology, Institute for Cell Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Departments of Pediatrics, Oncology, Radiation Oncology, and Biological Chemistry, The Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Roselle M. Abraham
- Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
| | - Andre Levchenko
- Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Vascular Biology, Institute for Cell Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA
- Institute for Computational Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
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Santos E, Hernández RM, Pedraz JL, Orive G. Novel advances in the design of three-dimensional bio-scaffolds to control cell fate: translation from 2D to 3D. Trends Biotechnol 2012; 30:331-41. [DOI: 10.1016/j.tibtech.2012.03.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 03/14/2012] [Accepted: 03/14/2012] [Indexed: 12/15/2022]
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