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Paul A, Volk A, Hokmabadi M, Rigo E, Kermani H, Almonte-Garcia L, Finamore TA, Iwamoto KM, Roeder RK, Timp G. Modular Assembly of Metamaterials Using Light Gradients. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401344. [PMID: 38838094 DOI: 10.1002/adma.202401344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/24/2024] [Indexed: 06/07/2024]
Abstract
This is a report on a pilot study that tests the feasibility of assembling photonic metamaterials (PMs) using light gradient forces. Following a strategy that works like modular construction, light gradient forces, produced by a tightly focused, 1D standing wave optical trap, time-multiplexed across a 2D lattice are used to assemble voxels consisting of prefabricated, monodispersed nanoparticles (NPs) with radii ranging from 30 to 500 nm into 3D structures on a hydrogel scaffold. Hundreds of NPs can be manipulated concurrently into a complex heterogeneous voxel this way, and then the process can be repeated by stitching together voxels to form a metamaterial of any size, shape, and constituency although imperfectly. Imperfections introduce random phase shifts and amplitude variations that can have an adverse effect on the band structure. Regardless, PMs are created this way using two different dielectric NPs, polystyrene and rutile, and then the near-infrared performance for each is analyzed with angle-, wavelength-, and polarization-dependent reflection spectroscopy. The cross-polarized spectra show evidence of a resonance peak. Interestingly, whereas the line shape from the polystyrene array is symmetric, the rutile array is not, which may be indicative of Fano resonance. So, even with the structural defects, reflection spectroscopy reveals a resonance.
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Affiliation(s)
- Apurba Paul
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Alexander Volk
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Mohammad Hokmabadi
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Eveline Rigo
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Hamideh Kermani
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Lisa Almonte-Garcia
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Tyler A Finamore
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Kyle M Iwamoto
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Ryan K Roeder
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Gregory Timp
- Department of Electrical Engineering and Biological Science, University of Notre Dame, Notre Dame, IN, 46556, USA
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2
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Gorobets O, Gorobets S, Sharai I, Polyakova T, Zablotskii V. Interaction of magnetic fields with biogenic magnetic nanoparticles on cell membranes: Physiological consequences for organisms in health and disease. Bioelectrochemistry 2023; 151:108390. [PMID: 36746089 DOI: 10.1016/j.bioelechem.2023.108390] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
The interaction mechanisms between magnetic fields (MFs) and living systems, which remained hidden for more than a hundred years, continue to attract the attention of researchers from various disciplines: physics, biology, medicine, and life sciences. Revealing these mechanisms at the cellular level would allow to understand complex cell systems and could help to explain and predict cell responses to MFs, intervene in organisms' reactions to MFs of different strengths, directions, and spatial distributions. We suggest several new physical mechanisms of the MF impacts on endothelial and cancer cells by the MF interaction with chains of biogenic and non-biogenic magnetic nanoparticles on cell membranes. The revealed mechanisms can play a hitherto unexpected role in creating physiological responses of organisms to externally applied MFs. We have also a set of theoretical models that can predict how cells will individually and collectively respond to a MF exposure. The physiological sequences of the MF - cell interactions for organisms in health and disease are discussed. The described effects and their underlying mechanisms are general and should take place in a large family of biological effects of MFs. The results are of great importance for further developing novel approaches in cell biology, cell therapy and medicine.
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Affiliation(s)
- Oksana Gorobets
- National Technical University of Ukraine, "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine; Institute of Magnetism of NAS and MES of Ukraine, Ukraine.
| | - Svitlana Gorobets
- National Technical University of Ukraine, "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine
| | - Iryna Sharai
- National Technical University of Ukraine, "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine; Institute of Magnetism of NAS and MES of Ukraine, Ukraine
| | - Tatyana Polyakova
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Vitalii Zablotskii
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic; International Magnetobiology Frontier Research Center (iMFRC), Science Island, China
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3
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Development of Tumor-Vasculature Interaction on Chip Mimicking Vessel Co-Option of Glioblastoma. BIOCHIP JOURNAL 2022. [DOI: 10.1007/s13206-022-00090-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Sklenářová R, Akla N, Latorre MJ, Ulrichová J, Franková J. Collagen as a Biomaterial for Skin and Corneal Wound Healing. J Funct Biomater 2022; 13:jfb13040249. [PMID: 36412890 PMCID: PMC9680244 DOI: 10.3390/jfb13040249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022] Open
Abstract
The cornea and the skin are two organs that form the outer barrier of the human body. When either is injured (e.g., from surgery, physical trauma, or chemical burns), wound healing is initiated to restore integrity. Many cells are activated during wound healing. In particular, fibroblasts that are stimulated often transition into repair fibroblasts or myofibroblasts that synthesize extracellular matrix (ECM) components into the wound area. Control of wound ECM deposition is critical, as a disorganized ECM can block restoration of function. One of the most abundant structural proteins in the mammalian ECM is collagen. Collagen type I is the main component in connective tissues. It can be readily obtained and purified, and short analogs have also been developed for tissue engineering applications, including modulating the wound healing response. This review discusses the effect of several current collagen implants on the stimulation of corneal and skin wound healing. These range from collagen sponges and hydrogels to films and membranes.
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Affiliation(s)
- Renáta Sklenářová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University in Olomouc, 775 15 Olomouc, Czech Republic
- Maisonneuve-Rosemont Hospital Research Centre, Montréal, QC H1T 2M4, Canada
| | - Naoufal Akla
- Maisonneuve-Rosemont Hospital Research Centre, Montréal, QC H1T 2M4, Canada
- Department of Ophthalmology, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | | | - Jitka Ulrichová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University in Olomouc, 775 15 Olomouc, Czech Republic
| | - Jana Franková
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University in Olomouc, 775 15 Olomouc, Czech Republic
- Correspondence:
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5
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Kang B, Choi S, Kim K, Jung HS, Kwak MK. Precise Microfluidic Luminescent Sensor Platform with Controlled Injection System. ACS OMEGA 2021; 6:23412-23420. [PMID: 34549140 PMCID: PMC8444323 DOI: 10.1021/acsomega.1c03347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Efforts have been devoted to screening various prevalent diseases, such as severe acute respiratory syndrome (SARS) and coronavirus disease 2019 (COVID-19). Real-time polymerase chain reaction (RT-PCR), which is currently the most widely used, has high accuracy, but it requires several facilities and takes a relatively long time to check; so, new testing technology is necessary for a higher test efficiency. A chemiluminescence (CL) sensor is a relatively simple device and suitable as an alternative because it can detect very precise specimens. However, in measurements via CL, the quantitative formulation of reagents that cause color development is important. In the case of mixing using micropipettes, precise analysis is possible, but this technique is limited by uncontrollable errors or deviations in detection amounts. In addition, in using a microfluidic chip to increase field applicability, a syringe pump or other quantification injection tools are required, so problems must be overcome for practical use. Therefore, in this study, a microchip was designed and manufactured to supply a sample of a certain volume by simply blowing air and injecting a sample into the chamber. By utilizing the luminescence reaction of luminol, CuSO4 and H2O2 the performance of the prepared chip was confirmed, and the desired amount of the sample could be injected with a simple device with an error rate of 2% or less. For feasible applications, an experiment was performed to quantitatively analyze thrombin, a biomarker of heart disease. Results demonstrated that biomarkers could be more precisely detected using the proposed microchips than using micropipettes.
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Affiliation(s)
- Bongsu Kang
- School
of Mechanical Engineering, Kyungpook National
University, Daegu 41566, South Korea
| | - Sunghak Choi
- Center
for Food and Bioconvergence, Department of Food Science and Biotechnology, Seoul National University, Seoul 08826, South
Korea
| | - Keesung Kim
- Research
Inst. of Advanced Materials, College of Engineering, Seoul National University, Seoul 08826, South Korea
| | - Ho-Sup Jung
- Center
for Food and Bioconvergence, Department of Food Science and Biotechnology, Seoul National University, Seoul 08826, South
Korea
| | - Moon Kyu Kwak
- School
of Mechanical Engineering, Kyungpook National
University, Daegu 41566, South Korea
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6
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Pointon A, Maher J, Davis M, Baker T, Cichocki J, Ramsden D, Hale C, Kolaja KL, Levesque P, Sura R, Stresser DM, Gintant G. Cardiovascular microphysiological systems (CVMPS) for safety studies - a pharma perspective. LAB ON A CHIP 2021; 21:458-472. [PMID: 33471007 DOI: 10.1039/d0lc01040e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The integrative responses of the cardiovascular (CV) system are essential for maintaining blood flow to provide oxygenation, nutrients, and waste removal for the entire body. Progress has been made in independently developing simple in vitro models of two primary components of the CV system, namely the heart (using induced pluripotent stem-cell derived cardiomyocytes) and the vasculature (using endothelial cells and smooth muscle cells). These two in vitro biomimics are often described as immature and simplistic, and typically lack the structural complexity of native tissues. Despite these limitations, they have proven useful for specific "fit for purpose" applications, including early safety screening. More complex in vitro models offer the tantalizing prospect of greater refinement in risk assessments. To this end, efforts to physically link cardiac and vascular components to mimic a true CV microphysiological system (CVMPS) are ongoing, with the goal of providing a more holistic and integrated CV response model. The challenges of building and implementing CVMPS in future pharmacological safety studies are many, and include a) the need for more complex (and hence mature) cell types and tissues, b) the need for more realistic vasculature (within and across co-modeled tissues), and c) the need to meaningfully couple these two components to allow for integrated CV responses. Initial success will likely come with simple, bioengineered tissue models coupled with fluidics intended to mirror a vascular component. While the development of more complex integrated CVMPS models that are capable of differentiating safe compounds and providing mechanistic evaluations of CV liabilities may be feasible, adoption by pharma will ultimately hinge on model efficiency, experimental reproducibility, and added value above current strategies.
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Affiliation(s)
- Amy Pointon
- Functional Mechanistic Safety, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Jonathan Maher
- Translational Safety Sciences, Theravance Biopharma, South San Francisco, CA 94080, USA
| | - Myrtle Davis
- Discovery Toxicology, Bristol-Myers Squibb Company, 3553 Lawrenceville Rd Princeton, NJ 08540, USA
| | - Thomas Baker
- Eli Lilly, Lilly Corporate Center, Indianapolis IN 46285, USA
| | | | - Diane Ramsden
- Takeda Pharmaceuticals, 35 Landsdowne St., Cambridge, MA 02139, UK
| | - Christopher Hale
- Amgen Research, 1120 Veterans Blvd., S. San Francisco, 94080, USA
| | - Kyle L Kolaja
- Investigative Toxicology and Cell Therapy, Bristol-Myers Squibb Company, 556 Morris Avenue, Summit NJ 07042, USA
| | - Paul Levesque
- Discovery Toxicology, Bristol-Myers Squibb Company, 3553 Lawrenceville Rd Princeton, NJ 08540, USA
| | | | - David M Stresser
- Drug Metabolism, Pharmacokinetics and Translational Modeling, AbbVie, 1 Waukegan Rd, N Chicago, IL 60064, USA
| | - Gary Gintant
- Integrative Pharmacology, Integrated Science and Technology, AbbVie, 1 Waukegan Rd, N Chicago, IL 60064, USA.
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7
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Pradhan S, Banda OA, Farino CJ, Sperduto JL, Keller KA, Taitano R, Slater JH. Biofabrication Strategies and Engineered In Vitro Systems for Vascular Mechanobiology. Adv Healthc Mater 2020; 9:e1901255. [PMID: 32100473 PMCID: PMC8579513 DOI: 10.1002/adhm.201901255] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/24/2020] [Indexed: 12/17/2022]
Abstract
The vascular system is integral for maintaining organ-specific functions and homeostasis. Dysregulation in vascular architecture and function can lead to various chronic or acute disorders. Investigation of the role of the vascular system in health and disease has been accelerated through the development of tissue-engineered constructs and microphysiological on-chip platforms. These in vitro systems permit studies of biochemical regulation of vascular networks and parenchymal tissue and provide mechanistic insights into the biophysical and hemodynamic forces acting in organ-specific niches. Detailed understanding of these forces and the mechanotransductory pathways involved is necessary to develop preventative and therapeutic strategies targeting the vascular system. This review describes vascular structure and function, the role of hemodynamic forces in maintaining vascular homeostasis, and measurement approaches for cell and tissue level mechanical properties influencing vascular phenomena. State-of-the-art techniques for fabricating in vitro microvascular systems, with varying degrees of biological and engineering complexity, are summarized. Finally, the role of vascular mechanobiology in organ-specific niches and pathophysiological states, and efforts to recapitulate these events using in vitro microphysiological systems, are explored. It is hoped that this review will help readers appreciate the important, but understudied, role of vascular-parenchymal mechanotransduction in health and disease toward developing mechanotherapeutics for treatment strategies.
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Affiliation(s)
- Shantanu Pradhan
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Omar A. Banda
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - Cindy J. Farino
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - John L. Sperduto
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - Keely A. Keller
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - Ryan Taitano
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - John H. Slater
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716, USA
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711, USA
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8
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Hapach LA, Mosier JA, Wang W, Reinhart-King CA. Engineered models to parse apart the metastatic cascade. NPJ Precis Oncol 2019; 3:20. [PMID: 31453371 PMCID: PMC6704099 DOI: 10.1038/s41698-019-0092-3] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/23/2019] [Indexed: 12/17/2022] Open
Abstract
While considerable progress has been made in studying genetic and cellular aspects of metastasis with in vitro cell culture and in vivo animal models, the driving mechanisms of each step of metastasis are still relatively unclear due to their complexity. Moreover, little progress has been made in understanding how cellular fitness in one step of the metastatic cascade correlates with ability to survive other subsequent steps. Engineered models incorporate tools such as tailored biomaterials and microfabrication to mimic human disease progression, which when coupled with advanced quantification methods permit comparisons to human patient samples and in vivo studies. Here, we review novel tools and techniques that have been recently developed to dissect key features of the metastatic cascade using primary patient samples and highly representative microenvironments for the purposes of advancing personalized medicine and precision oncology. Although improvements are needed to increase tractability and accessibility while faithfully simulating the in vivo microenvironment, these models are powerful experimental platforms for understanding cancer biology, furthering drug screening, and facilitating development of therapeutics.
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Affiliation(s)
- Lauren A. Hapach
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235 USA
| | - Jenna A. Mosier
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235 USA
| | - Wenjun Wang
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235 USA
| | - Cynthia A. Reinhart-King
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235 USA
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9
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Kotnala A, Zheng Y. Digital Assembly of Colloidal Particles for Nanoscale Manufacturing. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2019; 36:1900152. [PMID: 33041521 PMCID: PMC7546242 DOI: 10.1002/ppsc.201900152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Indexed: 06/11/2023]
Abstract
From unravelling the most fundamental phenomena to enabling applications that impact our everyday lives, the nanoscale world holds great promise for science, technology and medicine. However, the extent of its practical realization would rely on manufacturing at the nanoscale. Among the various nanomanufacturing approaches being investigated, the bottom-up approach involving assembly of colloidal nanoparticles as building blocks is promising. Compared to a top-down lithographic approach, particle assembly exhibits advantages such as smaller feature size, finer control of chemical composition, less defects, lower material wastage, and higher scalability. The capability to assemble colloidal particles one by one or "digitally" has been heavily sought as it mimics the natural way of making matter and enables construction of nanomaterials with sophisticated architectures. This progress report provides an insight into the tools and techniques for digital assembly of particles, including their working mechanisms and demonstrated particle assemblies. Examples of nanomaterials and nanodevices are presented to demonstrate the strength of digital assembly in nanomanufacturing.
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Affiliation(s)
- Abhay Kotnala
- Walker Department of Mechanical Engineering, Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712
| | - Yuebing Zheng
- Walker Department of Mechanical Engineering, Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712
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10
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Pfeifer CR, Xia Y, Zhu K, Liu D, Irianto J, García VMM, Millán LMS, Niese B, Harding S, Deviri D, Greenberg RA, Discher DE. Constricted migration increases DNA damage and independently represses cell cycle. Mol Biol Cell 2018; 29:1948-1962. [PMID: 29742017 PMCID: PMC6232975 DOI: 10.1091/mbc.e18-02-0079] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Cell migration through dense tissues or small capillaries can elongate the nucleus and even damage it, and any impact on cell cycle has the potential to affect various processes including carcinogenesis. Here, nuclear rupture and DNA damage increase with constricted migration in different phases of cell cycle-which we show is partially repressed. We study several cancer lines that are contact inhibited or not and that exhibit diverse frequencies of nuclear lamina rupture after migration through small pores. DNA repair factors invariably mislocalize after migration, and an excess of DNA damage is evident as pan--nucleoplasmic foci of phosphoactivated ATM and γH2AX. Foci counts are suppressed in late cell cycle as expected of mitotic checkpoints, and migration of contact-inhibited cells through large pores into sparse microenvironments leads also as expected to cell-cycle reentry and no effect on a basal level of damage foci. Constricting pores delay such reentry while excess foci occur independent of cell-cycle phase. Knockdown of repair factors increases DNA damage independent of cell cycle, consistent with effects of constricted migration. Because such migration causes DNA damage and impedes proliferation, it illustrates a cancer cell fate choice of "go or grow."
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Affiliation(s)
- Charlotte R. Pfeifer
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104,Graduate Group/Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, PA 19104
| | - Yuntao Xia
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104
| | - Kuangzheng Zhu
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104
| | - Dazhen Liu
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104
| | - Jerome Irianto
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104
| | | | | | - Brandon Niese
- Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104
| | - Shane Harding
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Basser Center for BRCA, Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Dan Deviri
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Roger A. Greenberg
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Basser Center for BRCA, Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Dennis E. Discher
- Physical Sciences Oncology Center at Penn, University of Pennsylvania, Philadelphia, PA 19104,Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104,Graduate Group/Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, PA 19104,*Address correspondence to: Dennis E. Discher ()
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11
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Kozbial A, Bhandary L, Collier BB, Eickhoff CS, Hoft DF, Murthy SK. Automated generation of immature dendritic cells in a single-use system. J Immunol Methods 2018; 457:53-65. [PMID: 29625078 DOI: 10.1016/j.jim.2018.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/26/2018] [Accepted: 03/26/2018] [Indexed: 12/15/2022]
Abstract
Dendritic cells (DCs) are an indispensable part of studying human responses that are important for protective immunity against cancer and infectious diseases as well as prevention of autoimmunity and transplant rejection. These cells are also key elements of personalized vaccines for cancer and infectious diseases. Despite the vital role of DCs in both clinical and basic research contexts, methods for obtaining these cells from individuals remains a comparatively under-developed and inefficient process. DCs are present in very low concentrations (<1%) in blood, thus they must be generated from monocytes and the current methodology in DC generation involves a laborious process of static culture and stimulation with cytokines contained in culture medium. Herein, we describe an automated fluidic system, MicroDEN, that allows for differentiation of monocytes into immature-DCs (iDCs) utilizing continuous perfusion of differentiation media. Manual steps associated with current ex vivo monocyte differentiation are vastly reduced and an aseptic environment is ensured by the use of an enclosed cartridge and tubing network. Benchmark phenotyping was performed on the generated iDCs along with allogeneic T-cell proliferation and syngeneic antigen-specific functional assays. MicroDEN generated iDCs were phenotypically and functionally similar to well plate generated iDCs, thereby demonstrating the feasibility of utilizing MicroDEN in the broad range of applications requiring DCs.
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Affiliation(s)
- Andrew Kozbial
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115, United States
| | - Lekhana Bhandary
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115, United States
| | - Bradley B Collier
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115, United States
| | - Christopher S Eickhoff
- Saint Louis University, School of Medicine, Department of Internal Medicine, St. Louis, MO 63104, United States
| | - Daniel F Hoft
- Saint Louis University, School of Medicine, Department of Internal Medicine, St. Louis, MO 63104, United States; Saint Louis University, School of Medicine, Department of Molecular Microbiology & Immunology, St. Louis, MO 63104, United States
| | - Shashi K Murthy
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115, United States.
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12
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Erbium-Based Perfusion Contrast Agent for Small-Animal Microvessel Imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2017; 2017:7368384. [PMID: 29270099 PMCID: PMC5705880 DOI: 10.1155/2017/7368384] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/11/2017] [Accepted: 10/02/2017] [Indexed: 12/17/2022]
Abstract
Micro-computed tomography (micro-CT) facilitates the visualization and quantification of contrast-enhanced microvessels within intact tissue specimens, but conventional preclinical vascular contrast agents may be inadequate near dense tissue (such as bone). Typical lead-based contrast agents do not exhibit optimal X-ray absorption properties when used with X-ray tube potentials below 90 kilo-electron volts (keV). We have developed a high-atomic number lanthanide (erbium) contrast agent, with a K-edge at 57.5 keV. This approach optimizes X-ray absorption in the output spectral band of conventional microfocal spot X-ray tubes. Erbium oxide nanoparticles (nominal diameter < 50 nm) suspended in a two-part silicone elastomer produce a perfusable fluid with viscosity of 19.2 mPa-s. Ultrasonic cavitation was used to reduce aggregate sizes to <70 nm. Postmortem intact mice were perfused to investigate the efficacy of contrast agent. The observed vessel contrast was >4000 Hounsfield units, and perfusion of vessels < 10 μm in diameter was demonstrated in kidney glomeruli. The described new contrast agent facilitated the visualization and quantification of vessel density and microarchitecture, even adjacent to dense bone. Erbium's K-edge makes this contrast agent ideally suited for both single- and dual-energy micro-CT, expanding potential preclinical research applications in models of musculoskeletal, oncological, cardiovascular, and neurovascular diseases.
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13
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Lao ZX, Hu YL, Pan D, Wang RY, Zhang CC, Ni JC, Xu B, Li JW, Wu D, Chu JR. Self-Sealed Bionic Long Microchannels with Thin Walls and Designable Nanoholes Prepared by Line-Contact Capillary-Force Assembly. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13. [PMID: 28440043 DOI: 10.1002/smll.201603957] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 03/13/2017] [Indexed: 05/05/2023]
Abstract
Long microchannels with thin walls, small width, and nanoholes or irregular shaped microgaps, which are similar to capillaries or cancerous vessels, are urgently needed to simulate the physiological activities in human body. However, the fabrication of such channels remains challenging. Here, microchannels with designable holes are manufactured by combining laser printing with line-contact capillary-force assembly. Two microwalls are first printed by femtosecond laser direct-writing, and subsequently driven to collapse into a channel by the capillary force that arises in the evaporation of developer. The channel can remain stable in solvent due to the enhanced Van der Waals' force caused by the line-contact of microwalls. Microchannels with controllable nanoholes and almost arbitrary patterns can be fabricated without any bonding or multistep processes. As-prepared microchannels, with wall thicknesses less than 1 µm, widths less than 3 µm, lengths more than 1 mm, are comparable with human capillaries. In addition, the prepared channels also exhibit the ability to steer the flow of liquid without any external pump.
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Affiliation(s)
- Zhao-Xin Lao
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Yan-Lei Hu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Deng Pan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Ren-Yan Wang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Chen-Chu Zhang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Jin-Cheng Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Bing Xu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Jia-Wen Li
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Dong Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Jia-Ru Chu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
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14
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Custódio-Santos T, Videira M, Brito MA. Brain metastasization of breast cancer. Biochim Biophys Acta Rev Cancer 2017; 1868:132-147. [PMID: 28341420 DOI: 10.1016/j.bbcan.2017.03.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 01/15/2023]
Abstract
Central nervous system metastases have been reported in 15-25% of breast cancer patients, and the incidence is increasing. Moreover, the survival of these patients is generally poor, with reports of a 1-year survival rate of 20%. Therefore, a better knowledge about the determinants of brain metastasization is essential for the improvement of the clinical outcomes. Here, we summarize the current data about the metastatic cascade, ranging from the output of cancer cells from the primary tumour to their colonization in the brain, which involves the epithelial-mesenchymal transition, invasion of mammary tissue, intravasation into circulation, and homing into and extravasation towards the brain. The phenotypic change in malignant cells, and the importance of the microenvironment in the formation of brain metastases are also inspected. Finally, the importance of genetic and epigenetic changes, and the recently disclosed effects of microRNAs in brain metastasization of breast cancer are highlighted.
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Affiliation(s)
- Tânia Custódio-Santos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Mafalda Videira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Department of Galenic Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Alexandra Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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15
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Malheiro A, Wieringa P, Mota C, Baker M, Moroni L. Patterning Vasculature: The Role of Biofabrication to Achieve an Integrated Multicellular Ecosystem. ACS Biomater Sci Eng 2016; 2:1694-1709. [DOI: 10.1021/acsbiomaterials.6b00269] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Afonso Malheiro
- Department
of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Paul Wieringa
- Department
of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Carlos Mota
- Department
of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Matthew Baker
- Department
of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Lorenzo Moroni
- Department
of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
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