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Youn KI, Lee JW, Song Y, Lee SY, Song KH. Development of Cell Culture Platforms for Study of Trabecular Meshwork Cells and Glaucoma Development. Tissue Eng Regen Med 2024; 21:695-710. [PMID: 38642251 PMCID: PMC11187050 DOI: 10.1007/s13770-024-00640-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Various cell culture platforms that could display native environmental cue-mimicking stimuli were developed, and effects of environmental cues on cell behaviors were studied with the cell culture platforms. Likewise, various cell culture platforms mimicking native trabecular meshwork (TM) composed of juxtacanalicular, corneoscleral and uveal meshwork located in internal scleral sulcus were used to study effects of environmental cues and/or drug treatments on TM cells and glaucoma development. Glaucoma is a disease that could cause blindness, and cause of glaucoma is not clearly identified yet. It appears that aqueous humor (AH) outflow resistance increased by damages on pathway of AH outflow can elevate intraocular pressure (IOP). These overall possibly contribute to development of glaucoma. METHODS For the study of glaucoma, static and dynamic cell culture platforms were developed. Particularly, the dynamic platforms exploiting AH outflow-mimicking perfusion or increased IOP-mimicking increased pressure were used to study how perfusion or increased pressure could affect TM cells. Overall, potential mechanisms of glaucoma development, TM structures and compositions, TM cell culture platform types and researches on TM cells and glaucoma development with the platforms were described in this review. RESULTS AND CONCLUSION This will be useful to improve researches on TM cells and develop enhanced therapies targeting glaucoma.
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Affiliation(s)
- Kook In Youn
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Ji Woo Lee
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Youngjun Song
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Sang Yeop Lee
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Department of Ophthalmology, Yongin Severance Hospital, Yonsei University College of Medicine, 363 Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 16995, Republic of Korea.
| | - Kwang Hoon Song
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea.
- Research Center of Brain-Machine Interface, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea.
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2
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Isomursu A, Alanko J, Hernández-Pérez S, Saukkonen K, Saari M, Mattila PK, Ivaska J. Dynamic Micropatterning Reveals Substrate-Dependent Differences in the Geometric Control of Cell Polarization and Migration. SMALL METHODS 2024; 8:e2300719. [PMID: 37926786 DOI: 10.1002/smtd.202300719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/03/2023] [Indexed: 11/07/2023]
Abstract
Cells are highly dynamic and adopt variable shapes and sizes. These variations are biologically important but challenging to investigate in a spatiotemporally controlled manner. Micropatterning, confining cells on microfabricated substrates with defined geometries and molecular compositions, is a powerful tool for controlling cell shape and interactions. However, conventional binary micropatterns are static and fail to address dynamic changes in cell polarity, spreading, and migration. Here, a method for dynamic micropatterning is reported, where the non-adhesive surface surrounding adhesive micropatterns is rapidly converted to support specific cell-matrix interactions while allowing simultaneous imaging of the cells. The technique is based on ultraviolet photopatterning of biotinylated polyethylene glycol-grafted poly-L-lysine, and it is simple, inexpensive, and compatible with a wide range of streptavidin-conjugated ligands. Experiments using biotinylation-based dynamic micropatterns reveal that distinct extracellular matrix ligands and bivalent integrin-clustering antibodies support different degrees of front-rear polarity in human glioblastoma cells, which correlates to altered directionality and persistence upon release and migration on fibronectin. Unexpectedly, however, neither an asymmetric cell shape nor centrosome orientation can fully predict the future direction of migration. Taken together, biotinylation-based dynamic micropatterns allow easily accessible and highly customizable control over cell morphology and motility.
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Affiliation(s)
- Aleksi Isomursu
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
| | - Jonna Alanko
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
| | - Sara Hernández-Pérez
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
- Institute of Biomedicine and MediCity Research Laboratories, University of Turku, Turku, 20014, Finland
- Department of Life Technologies, University of Turku, Turku, 20520, Finland
| | - Karla Saukkonen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
| | - Markku Saari
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
| | - Pieta K Mattila
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
- Institute of Biomedicine and MediCity Research Laboratories, University of Turku, Turku, 20014, Finland
- Department of Life Technologies, University of Turku, Turku, 20520, Finland
| | - Johanna Ivaska
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, 20520, Finland
- Department of Life Technologies, University of Turku, Turku, 20520, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, 20520, Finland
- Western Finnish Cancer Center (FICAN West), University of Turku, Turku, 20520, Finland
- Foundation for the Finnish Cancer Institute, Helsinki, 00014, Finland
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3
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Dinger N, Panzetta V, Russo C, Netti PA, Sirignano M. In vitro effects of combustion generated carbon dots on cellular parameters in healthy and cancerous breast cells. Nanotoxicology 2022; 16:733-756. [PMID: 36403151 DOI: 10.1080/17435390.2022.2144775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon nanomaterials are an inventive class of materials with wide applications in state-of-the-art bioimaging and therapeutics. They allow a broad range of tunable and integrated advantages of structural flexibility, chemical and thermal stability, upright electrical conductivity, and the option of scale-up and mass production. In the context of nanomedicine, carbon nanomaterials have been used extensively to mitigate the serious side effects of conventional chemotherapy and also to enable early cancer diagnostics, given their wide range of tunable properties. A class of carbon nanomaterials, called carbon dots (CDs) are small carbon-based nanoparticles and have been a valued discovery due to their photoluminescence, low photobleaching, and high surface area to mass ratio. The process of producing these CDs had so far been a high energy demanding process involving wet chemistry for purification. A one-step tunable production of luminescent CDs from fuel rich combustion reactors was recently presented by our group. In this paper, we explore the effects of these yellow luminescent combustion-generated CDs in MCF7 adenocarcinoma and MCF10a normal breast epithelial cells. We observed that these CDs, also at nontoxic doses, can affect basic cellular functions, such as cell cycle and proliferation; induce substantial changes on the physical parameters of the plasma membrane; and change the overall appearance of a cell in terms of morphology.
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Affiliation(s)
- Nikita Dinger
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Napoli, Italy
| | - Valeria Panzetta
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Napoli, Italy.,Interdisciplinary Research Centre on Biomaterials, CRIB, University of Naples Federico II, Naples, Italy.,Center for Advanced Biomaterials for Health Care IIT@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - Carmela Russo
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili- CNR - P.le V. Tecchio, Napoli, Italy
| | - Paolo Antonio Netti
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Napoli, Italy.,Interdisciplinary Research Centre on Biomaterials, CRIB, University of Naples Federico II, Naples, Italy.,Center for Advanced Biomaterials for Health Care IIT@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - Mariano Sirignano
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, Napoli, Italy
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4
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Vaidžiulytė K, Macé AS, Battistella A, Beng W, Schauer K, Coppey M. Persistent cell migration emerges from a coupling between protrusion dynamics and polarized trafficking. eLife 2022; 11:69229. [PMID: 35302488 PMCID: PMC8963884 DOI: 10.7554/elife.69229] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 02/26/2022] [Indexed: 11/13/2022] Open
Abstract
Migrating cells present a variety of paths, from random to highly directional ones. While random movement can be explained by basal intrinsic activity, persistent movement requires stable polarization. Here, we quantitatively address emergence of persistent migration in (hTERT)–immortalizedRPE1 (retinal pigment epithelial) cells over long timescales. By live cell imaging and dynamic micropatterning, we demonstrate that the Nucleus-Golgi axis aligns with direction of migration leading to efficient cell movement. We show that polarized trafficking is directed toward protrusions with a 20-min delay, and that migration becomes random after disrupting internal cell organization. Eventually, we prove that localized optogenetic Cdc42 activation orients the Nucleus-Golgi axis. Our work suggests that polarized trafficking stabilizes the protrusive activity of the cell, while protrusive activity orients this polarity axis, leading to persistent cell migration. Using a minimal physical model, we show that this feedback is sufficient to recapitulate the quantitative properties of cell migration in the timescale of hours.
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Affiliation(s)
| | | | | | | | - Kristine Schauer
- Tumor Cell Dynamics Unit, Institut Gustave Roussy, Villejuif, France
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5
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Influence of 3D Printing Parameters on the Mechanical Stability of PCL Scaffolds and the Proliferation Behavior of Bone Cells. MATERIALS 2022; 15:ma15062091. [PMID: 35329543 PMCID: PMC8954149 DOI: 10.3390/ma15062091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 11/17/2022]
Abstract
Introduction The use of scaffolds in tissue engineering is becoming increasingly important as solutions need to be found for the problem of preserving human tissue, such as bone or cartilage. In this work, scaffolds were printed from the biomaterial known as polycaprolactone (PCL) on a 3D Bioplotter. Both the external and internal geometry were varied to investigate their influence on mechanical stability and biocompatibility. Materials and Methods: An Envisiontec 3D Bioplotter was used to fabricate the scaffolds. First, square scaffolds were printed with variations in the strand width and strand spacing. Then, the filling structure was varied: either lines, waves, and honeycombs were used. This was followed by variation in the outer shape, produced as either a square, hexagon, octagon, or circle. Finally, the internal and external geometry was varied. To improve interaction with the cells, the printed PCL scaffolds were coated with type-I collagen. MG-63 cells were then cultured on the scaffolds and various tests were performed to investigate the biocompatibility of the scaffolds. Results: With increasing strand thickness and strand spacing, the compressive strengths decreased from 86.18 + 2.34 MPa (200 µm) to 46.38 + 0.52 MPa (600 µm). The circle was the outer shape with the highest compressive strength of 76.07 + 1.49 MPa, compared to the octagon, which had the lowest value of 52.96 ± 0.98 MPa. Varying the external shape (toward roundness) geometry, as well as the filling configuration, resulted in the highest values of compressive strength for the round specimens with honeycomb filling, which had a value of 91.4 + 1.4 MPa. In the biocompatibility tests, the round specimens with honeycomb filling also showed the highest cell count per mm², with 1591 ± 239 live cells/mm2 after 10 days and the highest value in cell proliferation, but with minimal cytotoxic effects (9.19 ± 2.47% after 3 days).
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6
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Beshay PE, Cortes-Medina MG, Menyhert MM, Song JW. The biophysics of cancer: emerging insights from micro- and nanoscale tools. ADVANCED NANOBIOMED RESEARCH 2022; 2:2100056. [PMID: 35156093 PMCID: PMC8827905 DOI: 10.1002/anbr.202100056] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cancer is a complex and dynamic disease that is aberrant both biologically and physically. There is growing appreciation that physical abnormalities with both cancer cells and their microenvironment that span multiple length scales are important drivers for cancer growth and metastasis. The scope of this review is to highlight the key advancements in micro- and nano-scale tools for delineating the cause and consequences of the aberrant physical properties of tumors. We focus our review on three important physical aspects of cancer: 1) solid mechanical properties, 2) fluid mechanical properties, and 3) mechanical alterations to cancer cells. Beyond posing physical barriers to the delivery of cancer therapeutics, these properties are also known to influence numerous biological processes, including cancer cell invasion and migration leading to metastasis, and response and resistance to therapy. We comment on how micro- and nanoscale tools have transformed our fundamental understanding of the physical dynamics of cancer progression and their potential for bridging towards future applications at the interface of oncology and physical sciences.
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Affiliation(s)
- Peter E Beshay
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
| | | | - Miles M Menyhert
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210
| | - Jonathan W Song
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
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7
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Zhou Z, Cui F, Wen Q, Susan Zhou H. Effect of vimentin on cell migration in collagen-coated microchannels: A mimetic physiological confined environment. BIOMICROFLUIDICS 2021; 15:034105. [PMID: 34025897 PMCID: PMC8133791 DOI: 10.1063/5.0045197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
Cancer cell migration through tissue pores and tracks into the bloodstream is a critical biological step for cancer metastasis. Although in vivo studies have shown that expression of vimentin can induce invasive cell lines, its role in cell cytoskeleton reorganization and cell motility under in vitro physical confinement remains unknown. Here, a microfluidic device with cell culture chamber and collagen-coated microchannels was developed as an in vitro model for physiological confinement environments. Using this microchannel assay, we demonstrated that the knockdown of vimentin decreases 3T3 fibroblast cell directional migration speed in confined microchannels. Additionally, as cells form dynamic membranes that define the leading edge of motile cells, different leading edge morphologies of 3T3 fibroblast and 3T3 vimentin knockdown cells were observed. The leading edge morphology change under confinement can be explained by the effect of vimentin on cytoskeletal organization and focal adhesion. The microfluidic device integrated with a time-lapse microscope provided a new approach to study the effect of vimentin on cell adhesion, migration, and invasiveness.
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Affiliation(s)
- Zhiru Zhou
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, USA
| | - Feiyun Cui
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, USA
| | - Qi Wen
- Department of Physics, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, USA
| | - H. Susan Zhou
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, USA
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8
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Goldblatt ZE, Cirka HA, Billiar KL. Mechanical Regulation of Apoptosis in the Cardiovascular System. Ann Biomed Eng 2021; 49:75-97. [PMID: 33169343 PMCID: PMC7775273 DOI: 10.1007/s10439-020-02659-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 10/12/2020] [Indexed: 12/30/2022]
Abstract
Apoptosis is a highly conserved physiological process of programmed cell death which is critical for proper organism development, tissue maintenance, and overall organism homeostasis. Proper regulation of cell removal is crucial, as both excessive and reduced apoptotic rates can lead to the onset of a variety of diseases. Apoptosis can be induced in cells in response to biochemical, electrical, and mechanical stimuli. Here, we review literature on specific mechanical stimuli that regulate apoptosis and the current understanding of how mechanotransduction plays a role in apoptotic signaling. We focus on how insufficient or excessive mechanical forces may induce apoptosis in the cardiovascular system and thus contribute to cardiovascular disease. Although studies have demonstrated that a broad range of mechanical stimuli initiate and/or potentiate apoptosis, they are predominantly correlative, and no mechanisms have been established. In this review, we attempt to establish a unifying mechanism for how various mechanical stimuli initiate a single cellular response, i.e. apoptosis. We hypothesize that the cytoskeleton plays a central role in this process as it does in determining myriad cell behaviors in response to mechanical inputs. We also describe potential approaches of using mechanomedicines to treat various diseases by altering apoptotic rates in specific cells. The goal of this review is to summarize the current state of the mechanobiology field and suggest potential avenues where future research can explore.
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9
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Spinler K, Bajaj J, Ito T, Zimdahl B, Hamilton M, Ahmadi A, Koechlein CS, Lytle N, Kwon HY, Anower-E-Khuda F, Sun H, Blevins A, Weeks J, Kritzik M, Karlseder J, Ginsberg MH, Park PW, Esko JD, Reya T. A stem cell reporter based platform to identify and target drug resistant stem cells in myeloid leukemia. Nat Commun 2020; 11:5998. [PMID: 33243988 PMCID: PMC7691523 DOI: 10.1038/s41467-020-19782-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 10/29/2020] [Indexed: 12/14/2022] Open
Abstract
Intratumoral heterogeneity is a common feature of many myeloid leukemias and a significant reason for treatment failure and relapse. Thus, identifying the cells responsible for residual disease and leukemia re-growth is critical to better understanding how they are regulated. Here, we show that a knock-in reporter mouse for the stem cell gene Musashi 2 (Msi2) allows identification of leukemia stem cells in aggressive myeloid malignancies, and provides a strategy for defining their core dependencies. Specifically, we carry out a high throughput screen using Msi2-reporter blast crisis chronic myeloid leukemia (bcCML) and identify several adhesion molecules that are preferentially expressed in therapy resistant bcCML cells and play a key role in bcCML. In particular, we focus on syndecan-1, whose deletion triggers defects in bcCML growth and propagation and markedly improves survival of transplanted mice. Further, live imaging reveals that the spatiotemporal dynamics of leukemia cells are critically dependent on syndecan signaling, as loss of this signal impairs their localization, migration and dissemination to distant sites. Finally, at a molecular level, syndecan loss directly impairs integrin β7 function, suggesting that syndecan exerts its influence, at least in part, by coordinating integrin activity in bcCML. These data present a platform for delineating the biological underpinnings of leukemia stem cell function, and highlight the Sdc1-Itgβ7 signaling axis as a key regulatory control point for bcCML growth and dissemination.
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MESH Headings
- Animals
- Antineoplastic Agents/therapeutic use
- Blast Crisis/genetics
- Blast Crisis/pathology
- Blast Crisis/therapy
- Chemoradiotherapy/methods
- Disease Models, Animal
- Drug Resistance, Neoplasm/drug effects
- Gene Knock-In Techniques
- Gene Knockout Techniques
- Genes, Reporter/genetics
- Green Fluorescent Proteins/chemistry
- Green Fluorescent Proteins/genetics
- High-Throughput Screening Assays
- Humans
- Imatinib Mesylate/pharmacology
- Imatinib Mesylate/therapeutic use
- Integrin beta Chains/metabolism
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/therapy
- Mice, Transgenic
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/pathology
- Neoplastic Stem Cells/radiation effects
- RNA-Binding Proteins/genetics
- RNA-Seq
- Signal Transduction/drug effects
- Syndecan-1/antagonists & inhibitors
- Syndecan-1/genetics
- Syndecan-1/metabolism
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Affiliation(s)
- Kyle Spinler
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Jeevisha Bajaj
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Takahiro Ito
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Bryan Zimdahl
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
| | - Michael Hamilton
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Armin Ahmadi
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Claire S Koechlein
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Nikki Lytle
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Hyog Young Kwon
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Ferdous Anower-E-Khuda
- Department of Cellular and Molecular Medicine, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - Hao Sun
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Allen Blevins
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Joi Weeks
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Marcie Kritzik
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | | | - Mark H Ginsberg
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Pyong Woo Park
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeffrey D Esko
- Department of Cellular and Molecular Medicine, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - Tannishtha Reya
- Department of Pharmacology, University of California San Diego School of Medicine, La Jolla, CA, USA.
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA.
- Department of Medicine, University of California San Diego, La Jolla, CA, USA.
- Moores Cancer Center, University of California San Diego School of Medicine, La Jolla, CA, USA.
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10
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Steering cell behavior through mechanobiology in 3D: A regenerative medicine perspective. Biomaterials 2020; 268:120572. [PMID: 33285439 DOI: 10.1016/j.biomaterials.2020.120572] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 09/04/2020] [Accepted: 11/21/2020] [Indexed: 12/14/2022]
Abstract
Mechanobiology, translating mechanical signals into biological ones, greatly affects cellular behavior. Steering cellular behavior for cell-based regenerative medicine approaches requires a thorough understanding of the orchestrating molecular mechanisms, among which mechanotransducive ones are being more and more elucidated. Because of their wide use and highly mechanotransduction dependent differentiation, this review focuses on mesenchymal stromal cells (MSCs), while also briefly relating the discussed results to other cell types. While the mechanotransduction pathways are relatively well-studied in 2D, much remains unknown of the role and regulation of these pathways in 3D. Ultimately, cells need to be cultured in a 3D environment to create functional de novo tissue. In this review, we explore the literature on the roles of different material properties on cellular behavior and mechanobiology in 2D and 3D. For example, while stiffness plays a dominant role in 2D MSCs differentiation, it seems to be of subordinate importance in 3D MSCs differentiation, where matrix remodeling seems to be key. Also, the role and regulation of some of the main mechanotransduction players are discussed, focusing on MSCs. We have only just begun to fundamentally understand MSCs and other stem cells behavior in 3D and more fundamental research is required to advance biomaterials able to replicate the stem cell niche and control cell activity. This better understanding will contribute to smarter tissue engineering scaffold design and the advancement of regenerative medicine.
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11
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Wang X, Wang H, He F, Zhang J. In Vitro Cell Migration through Three-Dimensional Interfaces of Varying Depths, Widths, and Curvatures on Micropatterned Polymer Surfaces. ACS APPLIED BIO MATERIALS 2020; 3:7472-7482. [DOI: 10.1021/acsabm.0c00697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuan Wang
- School of Biological Science and Medical Engineering, Beihang University, 100083 Beijing, China
- Hefei Innovation Research Institute, Beihang University, 230013 Hefei, China
| | - Hua Wang
- School of Biological Science and Medical Engineering, Beihang University, 100083 Beijing, China
- Hefei Innovation Research Institute, Beihang University, 230013 Hefei, China
| | - Fang He
- Hefei Innovation Research Institute, Beihang University, 230013 Hefei, China
| | - Jicong Zhang
- School of Biological Science and Medical Engineering, Beihang University, 100083 Beijing, China
- Hefei Innovation Research Institute, Beihang University, 230013 Hefei, China
- Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, 100083 Beijing, China
- Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine, Beihang University, 100083 Beijing, China
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12
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Fink A, Brückner DB, Schreiber C, Röttgermann PJF, Broedersz CP, Rädler JO. Area and Geometry Dependence of Cell Migration in Asymmetric Two-State Micropatterns. Biophys J 2020; 118:552-564. [PMID: 31864660 PMCID: PMC7002917 DOI: 10.1016/j.bpj.2019.11.3389] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 10/11/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022] Open
Abstract
Microstructured surfaces provide a unique framework to probe cell migration and cytoskeletal dynamics in a standardized manner. Here, we report on the steady-state occupancy probability of cells in asymmetric two-state microstructures that consist of two fibronectin-coated adhesion sites connected by a thin guidance cue. In these dumbbell-like structures, cells transition between the two sites in a repeated and stochastic manner, and average dwell times in the respective microenvironments are determined from the cell trajectories. We study the dynamics of human breast carcinoma cells (MDA-MB-231) in these microstructures as a function of area, shape, and orientation of the adhesion sites. On square adhesive sites with different areas, we find that the occupancy probability ratio is directly proportional to the ratio of corresponding adhesion site areas. These asymmetries are well captured by a simple model for the stochastic nonlinear dynamics of the cells, which reveals generic features of the motion. Sites of equal area but different shape lead to equal occupancy if shapes are isotropic (e.g., squared or circular). In contrast, an asymmetry in the occupancy is induced by anisotropic shapes like rhombi, triangles, or rectangles that enable motion in the direction perpendicular to the transition axis. Analysis of the two-dimensional motion of cells between two rectangles with orthogonal orientation suggests that cellular transition rates depend on the cell polarization induced by anisotropic micropatterns. Taken together, our results illustrate how two-state micropatterns provide a dynamic migration assay with distinct dwell times and relative cell occupancy as readouts, which may be useful to probe cell-microenvironment interactions.
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Affiliation(s)
- Alexandra Fink
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany
| | - David B Brückner
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany; Arnold-Sommerfeld-Center for Theoretical Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany
| | - Christoph Schreiber
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany
| | - Peter J F Röttgermann
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany
| | - Chase P Broedersz
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany; Arnold-Sommerfeld-Center for Theoretical Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany
| | - Joachim O Rädler
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Germany.
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Jana A, Nookaew I, Singh J, Behkam B, Franco AT, Nain AS. Crosshatch nanofiber networks of tunable interfiber spacing induce plasticity in cell migration and cytoskeletal response. FASEB J 2019; 33:10618-10632. [PMID: 31225977 PMCID: PMC6766658 DOI: 10.1096/fj.201900131r] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 05/30/2019] [Indexed: 01/14/2023]
Abstract
Biomechanical cues within tissue microenvironments are critical for maintaining homeostasis, and their disruption can contribute to malignant transformation and metastasis. Once transformed, metastatic cancer cells can migrate persistently by adapting (plasticity) to changes in the local fibrous extracellular matrix, and current strategies to recapitulate persistent migration rely exclusively on the use of aligned geometries. Here, the controlled interfiber spacing in suspended crosshatch networks of nanofibers induces cells to exhibit plasticity in migratory behavior (persistent and random) and the associated cytoskeletal arrangement. At dense spacing (3 and 6 µm), unexpectedly, elongated cells migrate persistently (in 1 dimension) at high speeds in 3-dimensional shapes with thick nuclei, and short focal adhesion cluster (FAC) lengths. With increased spacing (18 and 36 µm), cells attain 2-dimensional morphologies, have flattened nuclei and longer FACs, and migrate randomly by rapidly detaching their trailing edges that strain the nuclei by ∼35%. At 54-µm spacing, kite-shaped cells become near stationary. Poorly developed filamentous actin stress fibers are found only in cells on 3-µm networks. Gene-expression profiling shows a decrease in transcriptional potential and a differential up-regulation of metabolic pathways. The consistency in observed phenotypes across cell lines supports using this platform to dissect hallmarks of plasticity in migration in vitro.-Jana, A., Nookaew, I., Singh, J., Behkam, B., Franco, A. T., Nain, A. S. Crosshatch nanofiber networks of tunable interfiber spacing induce plasticity in cell migration and cytoskeletal response.
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Affiliation(s)
- Aniket Jana
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Intawat Nookaew
- Department of Physiology and Biophysics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Jugroop Singh
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Bahareh Behkam
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Aime T. Franco
- Department of Physiology and Biophysics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Amrinder S. Nain
- Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
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14
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Sosnowska M, Kutwin M, Jaworski S, Strojny B, Wierzbicki M, Szczepaniak J, Łojkowski M, Święszkowski W, Bałaban J, Chwalibog A, Sawosz E. Mechano-signalling, induced by fullerene C 60 nanofilms, arrests the cell cycle in the G2/M phase and decreases proliferation of liver cancer cells. Int J Nanomedicine 2019; 14:6197-6215. [PMID: 31496681 PMCID: PMC6689765 DOI: 10.2147/ijn.s206934] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/04/2019] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION AND OBJECTIVE Degradation of the extracellular matrix (ECM) changes the physicochemical properties and dysregulates ECM-cell interactions, leading to several pathological conditions, such as invasive cancer. Carbon nanofilm, as a biocompatible and easy to functionalize material, could be used to mimic ECM structures, changing cancer cell behavior to perform like normal cells. METHODS Experiments were performed in vitro with HS-5 cells (as a control) and HepG2 and C3A cancer cells. An aqueous solution of fullerene C60 was used to form a nanofilm. The morphological properties of cells cultivated on C60 nanofilms were evaluated with light, confocal, electron and atomic force microscopy. The cell viability and proliferation were measured by XTT and BrdU assays. Immunoblotting and flow cytometry were used to evaluate the expression level of proliferating cell nuclear antigen and determine the number of cells in the G2/M phase. RESULTS All cell lines were spread on C60 nanofilms, showing a high affinity to the nanofilm surface. We found that C60 nanofilm mimicked the niche/ECM of cells, was biocompatible and non-toxic, but the mechanical signal from C60 nanofilm created an environment that affected the cell cycle and reduced cell proliferation. CONCLUSION The results indicate that C60 nanofilms might be a suitable, substitute component for the niche of cancer cells. The incorporation of fullerene C60 in the ECM/niche may be an alternative treatment for hepatocellular carcinoma.
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Affiliation(s)
- Malwina Sosnowska
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - Marta Kutwin
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - Sławomir Jaworski
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - Barbara Strojny
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - Mateusz Wierzbicki
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - Jarosław Szczepaniak
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - Maciej Łojkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw00-661, Poland
| | - Wojciech Święszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw00-661, Poland
| | - Jaśmina Bałaban
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
| | - André Chwalibog
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg1870, Denmark
| | - Ewa Sawosz
- Department of Animal Nutrition and Biotechnology, Warsaw University of Life Sciences, Warsaw02-786, Poland
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Mani M, Thao DT, Kim BC, Lee UH, Kim DJ, Jang SH, Back SH, Lee BJ, Cho WJ, Han IS, Park JW. DRG2 knockdown induces Golgi fragmentation via GSK3β phosphorylation and microtubule stabilization. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:1463-1474. [PMID: 31199931 DOI: 10.1016/j.bbamcr.2019.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/19/2019] [Accepted: 06/04/2019] [Indexed: 01/01/2023]
Abstract
The perinuclear stacks of the Golgi apparatus maintained by dynamic microtubules are essential for cell migration. Activation of Akt (protein kinase B, PKB) negatively regulates glycogen synthase kinase 3β (GSK3β)-mediated tau phosphorylation, which enhances tau binding to microtubules and microtubule stability. In this study, experiments were performed on developmentally regulated GTP-binding protein 2 (DRG2)-stably knockdown HeLa cells to determine whether knockdown of DRG2 in HeLa cells treated with epidermal growth factor (EGF) affects microtubule dynamics, perinuclear Golgi stacking, and cell migration. Here, we show that DRG2 plays a key role in regulating microtubule stability, perinuclear Golgi stack formation, and cell migration. DRG2 knockdown prolonged the EGF receptor (EGFR) localization in endosome, enhanced Akt activity and inhibitory phosphorylation of GSK3β. Tau, a target of GSK3β, was hypo-phosphorylated in DRG2-knockdown cells and showed greater association with microtubules, resulting in microtubule stabilization. DRG2-knockdown cells showed defects in microtubule growth and microtubule organizing centers (MTOC), Golgi fragmentation, and loss of directional cell migration. These results reveal a previously unappreciated role for DRG2 in the regulation of perinuclear Golgi stacking and cell migration via its effects on GSK3β phosphorylation, and microtubule stability.
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Affiliation(s)
- Muralidharan Mani
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Dang Thi Thao
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Beom Chang Kim
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Unn Hwa Lee
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Dong Jun Kim
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Soo Hwa Jang
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Sung Hoon Back
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Byung Ju Lee
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Wha Ja Cho
- Metainflammation Research Center, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - In-Seob Han
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea.
| | - Jeong Woo Park
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea.
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16
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Wang X, Ho C, Tsatskis Y, Law J, Zhang Z, Zhu M, Dai C, Wang F, Tan M, Hopyan S, McNeill H, Sun Y. Intracellular manipulation and measurement with multipole magnetic tweezers. Sci Robot 2019; 4:4/28/eaav6180. [DOI: 10.1126/scirobotics.aav6180] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 01/16/2019] [Indexed: 12/15/2022]
Abstract
The capability to directly interrogate intracellular structures inside a single cell for measurement and manipulation is important for understanding subcellular and suborganelle activities, diagnosing diseases, and developing new therapeutic approaches. Compared with measurements of single cells, physical measurement and manipulation of subcellular structures and organelles remain underexplored. To improve intracellular physical measurement and manipulation, we have developed a multipole magnetic tweezers system for micromanipulation involving submicrometer position control and piconewton force control of a submicrometer magnetic bead inside a single cell for measurement in different locations (spatial) and different time points (temporal). The bead was three-dimensionally positioned in the cell using a generalized predictive controller that addresses the control challenge caused by the low bandwidth of visual feedback from high-resolution confocal imaging. The average positioning error was quantified to be 0.4 μm, slightly larger than the Brownian motion–imposed constraint (0.31 μm). The system is also capable of applying a force up to 60 pN with a resolution of 4 pN for a period of time longer than 30 min. The measurement results revealed that significantly higher stiffness exists in the nucleus’ major axis than in the minor axis. This stiffness polarity is likely attributed to the aligned actin filament. We also showed that the nucleus stiffens upon the application of an intracellularly applied force, which can be attributed to the response of structural protein lamin A/C and the intracellular stress fiber actin filaments.
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17
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Saw TB, Xi W, Ladoux B, Lim CT. Biological Tissues as Active Nematic Liquid Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802579. [PMID: 30156334 DOI: 10.1002/adma.201802579] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 06/11/2018] [Indexed: 05/27/2023]
Abstract
Live tissues can self-organize and be described as active materials composed of cells that generate active stresses through continuous injection of energy. In vitro reconstituted molecular networks, as well as single-cell cytoskeletons show that their filamentous structures can portray nematic liquid crystalline properties and can promote nonequilibrium processes induced by active processes at the microscale. The appearance of collective patterns, the formation of topological singularities, and spontaneous phase transition within the cell cytoskeleton are emergent properties that drive cellular functions. More integrated systems such as tissues have cells that can be seen as coarse-grained active nematic particles and their interaction can dictate many important tissue processes such as epithelial cell extrusion and migration as observed in vitro and in vivo. Here, a brief introduction to the concept of active nematics is provided, and the main focus is on the use of this framework in the systematic study of predominantly 2D tissue architectures and dynamics in vitro. In addition how the nematic state is important in tissue behavior, such as epithelial expansion, tissue homeostasis, and the atherosclerosis disease state, is discussed. Finally, how the nematic organization of cells can be controlled in vitro for tissue engineering purposes is briefly discussed.
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Affiliation(s)
- Thuan Beng Saw
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Engineering Block 4, #04-08, Singapore, 117583, Singapore
| | - Wang Xi
- Institut Jacques Monod (IJM), CNRS UMR 7592 and Université Paris Diderot, Paris, France
| | - Benoit Ladoux
- Institut Jacques Monod (IJM), CNRS UMR 7592 and Université Paris Diderot, Paris, France
- Mechanobiology Institute (MBI), National University of Singapore, Singapore, 117411, Singapore
| | - Chwee Teck Lim
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Engineering Block 4, #04-08, Singapore, 117583, Singapore
- Mechanobiology Institute (MBI), National University of Singapore, Singapore, 117411, Singapore
- Biomedical Institute for Global Health, Research and Technology (BIGHEART), National University of Singapore, MD6, 14 Medical Drive, #14-01, Singapore, 117599, Singapore
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18
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Wang C, Xu N, Yang YJ, Wu QM, Pang DW, Zhang ZL. Enhanced directional cell migration induced by vaccinia virus on a microfluidic-based multi-shear cell migration assay platform. Integr Biol (Camb) 2017; 9:903-911. [DOI: 10.1039/c7ib00151g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An integrated mcirofluidic-based cell migration platform was developed to explore the vaccinia virus-induced cell migration in different shear stress environments.
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Affiliation(s)
- Cheng Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, and Wuhan Institute of Biotechnology, Wuhan University
- Wuhan 430072
- P. R. China
| | - Na Xu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, and Wuhan Institute of Biotechnology, Wuhan University
- Wuhan 430072
- P. R. China
| | - Yu-Jun Yang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, and Wuhan Institute of Biotechnology, Wuhan University
- Wuhan 430072
- P. R. China
| | - Qiu-Mei Wu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, and Wuhan Institute of Biotechnology, Wuhan University
- Wuhan 430072
- P. R. China
| | - Dai-Wen Pang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, and Wuhan Institute of Biotechnology, Wuhan University
- Wuhan 430072
- P. R. China
| | - Zhi-Ling Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, and Wuhan Institute of Biotechnology, Wuhan University
- Wuhan 430072
- P. R. China
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19
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Liu X, Liu R, Cao B, Ye K, Li S, Gu Y, Pan Z, Ding J. Subcellular cell geometry on micropillars regulates stem cell differentiation. Biomaterials 2016; 111:27-39. [DOI: 10.1016/j.biomaterials.2016.09.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 12/18/2022]
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20
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Abstract
Cells in the body are physically confined by neighboring cells, tissues, and the extracellular matrix. Although physical confinement modulates intracellular signaling and the underlying mechanisms of cell migration, it is difficult to study in vivo. Furthermore, traditional two-dimensional cell migration assays do not recapitulate the complex topographies found in the body. Therefore, a number of experimental in vitro models that confine and impose forces on cells in well-defined microenvironments have been engineered. We describe the design and use of microfluidic microchannel devices, grooved substrates, micropatterned lines, vertical confinement devices, patterned hydrogels, and micropipette aspiration assays for studying cell responses to confinement. Use of these devices has enabled the delineation of changes in cytoskeletal reorganization, cell-substrate adhesions, intracellular signaling, nuclear shape, and gene expression that result from physical confinement. These assays and the physiologically relevant signaling pathways that have been elucidated are beginning to have a translational and clinical impact.
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Affiliation(s)
- Colin D Paul
- Department of Chemical and Biomolecular Engineering
- Institute for NanoBioTechnology, and
| | - Wei-Chien Hung
- Department of Chemical and Biomolecular Engineering
- Institute for NanoBioTechnology, and
| | - Denis Wirtz
- Department of Chemical and Biomolecular Engineering
- Institute for NanoBioTechnology, and
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218;
| | - Konstantinos Konstantopoulos
- Department of Chemical and Biomolecular Engineering
- Institute for NanoBioTechnology, and
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218;
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21
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He S, Liu C, Li X, Ma S, Huo B, Ji B. Dissecting Collective Cell Behavior in Polarization and Alignment on Micropatterned Substrates. Biophys J 2016; 109:489-500. [PMID: 26244731 DOI: 10.1016/j.bpj.2015.06.058] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 06/07/2015] [Accepted: 06/29/2015] [Indexed: 01/26/2023] Open
Abstract
Pattern-dependent collective behaviors of cells have recently raised intensive attention. However, the underlying mechanisms that regulate these behaviors are largely elusive. Here, we report a quantitative study, combining experiment and modeling, on cell polarization and arrangement on a micropatterned substrate. We show that cells exhibit position-dependent collective behaviors that can be regulated by geometry and stiffness of the patterned substrate. We find that the driving force for these collective behaviors is the in-plane maximum shear stress in the cell layer that directs the arrangement of cells. The larger the shear stress, the more the cells preferentially align and polarize along the direction of the maximum principal stress. We also find that the aspect ratio of cell polarization shape and the degree to which cells preferentially align along the direction of maximum principal stress exhibit a biphasic dependence on substrate rigidity, corresponding to our quantitative predictions that the magnitude of the maximum shear stress is biphasically dependent on the stiffness of the substrate. As such, the driving force of these cell collective behaviors can be quantified using the maximum shear stress.
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Affiliation(s)
- Shijie He
- Biomechanics and Biomaterials Laboratory, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
| | - Chenglin Liu
- Biomechanics and Biomaterials Laboratory, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
| | - Xiaojun Li
- Biomechanics and Biomaterials Laboratory, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
| | - Shaopeng Ma
- Biomechanics and Biomaterials Laboratory, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
| | - Bo Huo
- Biomechanics and Biomaterials Laboratory, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China.
| | - Baohua Ji
- Biomechanics and Biomaterials Laboratory, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China.
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22
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Canver AC, Ngo O, Urbano RL, Clyne AM. Endothelial directed collective migration depends on substrate stiffness via localized myosin contractility and cell-matrix interactions. J Biomech 2016; 49:1369-1380. [DOI: 10.1016/j.jbiomech.2015.12.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 11/25/2015] [Accepted: 12/16/2015] [Indexed: 01/05/2023]
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Abstract
Recent advances in dynamic biointerfaces enable spatiotemporal control over cell position and migration after attachment using substrates that employ chemical, optical, thermal, or electrical triggers. This review focuses on flexible and accessible methods for the fabrication of cellular arrays or co cultures for fundamental studies of cell biology or regenerative medicine.
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Affiliation(s)
| | - Carlos C Co
- University of Cincinnati, Cincinnati, OH 45221
| | - Chia-Chi Ho
- University of Cincinnati, Cincinnati, OH 45221
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24
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Hernandez DS, Ritschdorff ET, Seidlits SK, Schmidt CE, Shear JB. Functionalizing micro-3D-printed protein hydrogels for cell adhesion and patterning. J Mater Chem B 2016; 4:1818-1826. [DOI: 10.1039/c5tb02070k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A versatile and dynamic photoconjugation platform is introduced that provides high, 3D spatial resolution for functionalizing micro-3D-printed (μ-3DP) hydrogels. Schwann cells are patterned on μ-3DP hydrogels precisely labeled with RGD, a cell adhesive peptide, demonstrating utility of this platform for cell culture applications.
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Affiliation(s)
- D. S. Hernandez
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
| | - E. T. Ritschdorff
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
| | - S. K. Seidlits
- Department of Bioengineering
- University of California Los Angeles
- Los Angeles
- USA
| | - C. E. Schmidt
- Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA
| | - J. B. Shear
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
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25
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Kushiro K, Sakai T, Takai M. Slope-Dependent Cell Motility Enhancements at the Walls of PEG-Hydrogel Microgroove Structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10215-10222. [PMID: 26287573 DOI: 10.1021/acs.langmuir.5b02511] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In recent years, research utilizing micro- and nanoscale geometries and structures on biomaterials to manipulate cellular behaviors, such as differentiation, proliferation, survival, and motility, have gained much popularity; however, how the surface microtopography of 3D objects, such as implantable devices, can affect these various cell behaviors still remains largely unknown. In this study, we discuss how the walls of microgroove topography can influence the morphology and the motility of unrestrained cells, in a different fashion from 2D line micropatterns. Here adhesive substrates made of tetra(polyethylene glycol) (tetra-PEG) hydrogels with microgroove structures or 2D line micropatterns were fabricated, and cell motility on these substrates was evaluated. Interestingly, despite being unconstrained, the cells exhibited drastically different migration behaviors at the edges of the 2D micropatterns and the walls of microgroove structures. In addition to acquiring a unilamellar morphology, the cells increased their motility by roughly 3-fold on the microgroove structures, compared with the 2D counterpart or the nonpatterned surface. Immunostaining revealed that this behavior was dependent on the alignment and the aggregation of the actin filaments, and by varying the slope of the microgroove walls, it was found that relatively upright walls are necessary for this cell morphology alterations. Further progress in this research will not only deepen our understanding of topography-assisted biological phenomena like cancer metastasis but also enable precise, topography-guided manipulation of cell motility for applications such as cancer diagnosis and cell sorting.
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Affiliation(s)
- Keiichiro Kushiro
- Department of Bioengineering, School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takamasa Sakai
- Department of Bioengineering, School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Madoka Takai
- Department of Bioengineering, School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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26
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Kumar G, Ho CC, Co CC. Cell-Substrate Interactions Feedback to Direct Cell Migration along or against Morphological Polarization. PLoS One 2015; 10:e0133117. [PMID: 26186588 PMCID: PMC4506050 DOI: 10.1371/journal.pone.0133117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 06/24/2015] [Indexed: 12/19/2022] Open
Abstract
In response to external stimuli, cells polarize morphologically into teardrop shapes prior to moving in the direction of their blunt leading edge through lamellipodia extension and retraction of the rear tip. This textbook description of cell migration implies that the initial polarization sets the direction of cell migration. Using microfabrication techniques to control cell morphologies and the direction of migration without gradients, we demonstrate that after polarization, lamelipodia extension and attachment can feedback to change and even reverse the initial morphological polarization. Cells do indeed migrate faster in the direction of their morphologically polarization. However, feedback from subsequent lamellipodia extension and attachment can be so powerful as to induce cells to reverse and migrate against their initial polarization, albeit at a slower speed. Constitutively active mutants of RhoA show that RhoA stimulates cell motility when cells are guided either along or against their initial polarization. Cdc42 activation and inhibition, which results in loss of directional motility during chemotaxis, only reduces the speed of migration without altering the directionality of migration on the micropatterns. These results reveal significant differences between substrate directed cell migration and that induced by chemotactic gradients.
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Affiliation(s)
- Girish Kumar
- Biomedical, Chemical, and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221–0012, United States of America
| | - Chia-Chi Ho
- Biomedical, Chemical, and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221–0012, United States of America
| | - Carlos C. Co
- Biomedical, Chemical, and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221–0012, United States of America
- * E-mail:
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Abstract
Recent studies suggest that actin filaments are essential in how a cell controls its nuclear shape. However, little is known about the relative importance of membrane tension in determining nuclear morphology. In this study, we used adhesive micropatterned substrates to alter the cellular geometry (aspect ratio, size, and shape) that allowed direct membrane tension or without membrane lateral contact with the nucleus and investigate nuclear shape remodeling and orientation on a series of rectangular shapes. Here we showed that at low cell aspect ratios the orientation of the nucleus was regulated by actin filaments while cells with high aspect ratios can maintain nuclear shape and orientation even when actin polymerization was blocked. A model adenocarcinoma cell showed similar behavior in the regulation of nuclear shape in response to changes in cell shape but actin filaments were essential in maintaining cell shape. Our results highlight the two distinct mechanisms to regulate nuclear shape through cell shape control and the difference between fibroblasts and a model cancerous cell in cell adhesion and cell shape control.
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Affiliation(s)
- Bo Chen
- Department of Chemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45220, USA
| | - Carlos Co
- Department of Chemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45220, USA
| | - Chia-Chi Ho
- Department of Chemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45220, USA.
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28
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Harn HIC, Wang YK, Hsu CK, Ho YT, Huang YW, Chiu WT, Lin HH, Cheng CM, Tang MJ. Mechanical coupling of cytoskeletal elasticity and force generation is crucial for understanding the migrating nature of keloid fibroblasts. Exp Dermatol 2015; 24:579-84. [PMID: 25877039 DOI: 10.1111/exd.12731] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2015] [Indexed: 01/11/2023]
Abstract
One of the key features of keloid is its fibroblasts migrating beyond the original wound border. During migration, cells not only undergo molecular changes but also mechanical modulation. This process is led by actin filaments serving as the backbone of intra-cellular force and transduces external mechanical signal via focal adhesion complex into the cell. Here, we focus on determining the mechanical changes of actin filaments and the spatial distribution of forces in response to changing chemical stimulations and during cell migration. Atomic force microscopy and micropost array detector are used to determine and compare the magnitude and distribution of filament elasticity and force generation in fibroblasts and keloid fibroblasts. We found both filament elasticity and force generation show spatial distribution in a polarized and migrating cell. Such spatial distribution is disrupted when mechano-signalling is perturbed by focal adhesion kinase inhibitor and in keloid fibroblasts. The demonstration of keloid pathology at the nanoscale highlights the coupling of cytoskeletal function with physical characters at the subcellular level and provides new research directions for migration-related disease such as keloid.
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Affiliation(s)
- Hans I-Chen Harn
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yang-Kao Wang
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Chao-Kai Hsu
- Department of Dermatology, National Cheng Kung University Medical Hospital, Tainan, Taiwan
| | - Yen-Ting Ho
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Wei Huang
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Tai Chiu
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Biomedical Engineering, College of Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Hsi-Hui Lin
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chao-Min Cheng
- Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu, Taiwan
| | - Ming-Jer Tang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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29
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Zheng W, Xie Y, Sun K, Wang D, Zhang Y, Wang C, Chen Y, Jiang X. An on-chip study on the influence of geometrical confinement and chemical gradient on cell polarity. BIOMICROFLUIDICS 2014; 8:052010. [PMID: 25538801 PMCID: PMC4222261 DOI: 10.1063/1.4898209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/06/2014] [Indexed: 06/04/2023]
Abstract
Cell polarity plays key roles in tissue development, regeneration, and pathological processes. However, how the cells establish and maintain polarity is still obscure so far. In this study, by employing microfluidic techniques, we explored the influence of geometrical confinement and chemical stimulation on the cell polarity and their interplay. We found that teardrop shape-induced anterior/posterior polarization of cells displayed homogeneous distribution of epidermal growth factor receptor, and the polarity could be maintained in a uniform epidermal growth factor (EGF) solution, but be broken by a reverse gradient of EGF, implying different mechanism of geometrical and chemical cue-induced cell polarity. Further studies indicated that a teardrop pattern could cause polarized distribution of microtubule-organization center and nucleus-Golgi complex, and this polarity was weakened when the cells were released from the confinement. Our study provides the evidence regarding the difference between geometrical and chemical cue-induced cell polarity and would be useful for understanding relationship between polarity and directional migration of cells.
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Affiliation(s)
- Wenfu Zheng
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
| | - Yunyan Xie
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
| | - Kang Sun
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
| | - Dong Wang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
| | - Yi Zhang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
| | - Chen Wang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
| | - Yong Chen
- Ecole Normale Superieure , 24 rue Lhomond, Paris, France
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China
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