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Fibroblast MMP14-Dependent Collagen Processing Is Necessary for Melanoma Growth. Cancers (Basel) 2021; 13:cancers13081984. [PMID: 33924099 PMCID: PMC8074311 DOI: 10.3390/cancers13081984] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Matrix metalloproteinases (MMPs) were considered as targets for the treatment of various cancers. However, initial trials using broad inhibitors to MMPs have failed, partly attributed to the contrasting functions of these proteases acting as tumor promoters and suppressors, among other reasons. Our data now suggest that specific inhibition of MMP14 might represent a more specific approach, as loss of this protease in fibroblasts resulted in reduced growth of grafted melanomas. Here, we found that deletion of MMP14 in fibroblasts generates a matrix-rich environment that reduces tumor vascularization and melanoma cell proliferation. In in vitro and ex vivo assays, we showed that the latter is mediated by stiffening of the tissue due to collagen accumulation. Additionally, in vivo, we show that independently of MMP14 deletion, a collagen-rich stiff matrix inhibits the growth of melanomas. Abstract Skin homeostasis results from balanced synthesis and degradation of the extracellular matrix in the dermis. Deletion of the proteolytic enzyme MMP14 in dermal fibroblasts (MMP14Sf−/−) leads to a fibrotic skin phenotype with the accumulation of collagen type I, resulting from impaired proteolysis. Here, we show that melanoma growth in these mouse fibrotic dermal samples was decreased, paralleled by reduced tumor cell proliferation and vessel density. Using atomic force microscopy, we found increased peritumoral matrix stiffness of early but not late melanomas in the absence of fibroblast-derived MMP14. However, total collagen levels were increased at late melanoma stages in MMP14Sf−/− mice compared to controls. In ex vivo invasion assays, melanoma cells formed smaller tumor islands in MMP14Sf−/− skin, indicating that MMP14-dependent matrix accumulation regulates tumor growth. In line with these data, in vitro melanoma cell growth was inhibited in high collagen 3D spheroids or stiff substrates. Most importantly, in vivo induction of fibrosis using bleomycin reduced melanoma tumor growth. In summary, we show that MMP14 expression in stromal fibroblasts regulates melanoma tumor progression by modifying the peritumoral matrix and point to collagen accumulation as a negative regulator of melanoma.
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Edgar LT, Franco CA, Gerhardt H, Bernabeu MO. On the preservation of vessel bifurcations during flow-mediated angiogenic remodelling. PLoS Comput Biol 2021; 17:e1007715. [PMID: 33539345 PMCID: PMC7909651 DOI: 10.1371/journal.pcbi.1007715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/26/2021] [Accepted: 11/26/2020] [Indexed: 11/18/2022] Open
Abstract
During developmental angiogenesis, endothelial cells respond to shear stress by migrating and remodelling the initially hyperbranched plexus, removing certain vessels whilst maintaining others. In this study, we argue that the key regulator of vessel preservation is cell decision behaviour at bifurcations. At flow-convergent bifurcations where migration paths diverge, cells must finely tune migration along both possible paths if the bifurcation is to persist. Experiments have demonstrated that disrupting the cells’ ability to sense shear or the junction forces transmitted between cells impacts the preservation of bifurcations during the remodelling process. However, how these migratory cues integrate during cell decision making remains poorly understood. Therefore, we present the first agent-based model of endothelial cell flow-mediated migration suitable for interrogating the mechanisms behind bifurcation stability. The model simulates flow in a bifurcated vessel network composed of agents representing endothelial cells arranged into a lumen which migrate against flow. Upon approaching a bifurcation where more than one migration path exists, agents refer to a stochastic bifurcation rule which models the decision cells make as a combination of flow-based and collective-based migratory cues. With this rule, cells favour branches with relatively larger shear stress or cell number. We found that cells must integrate both cues nearly equally to maximise bifurcation stability. In simulations with stable bifurcations, we found competitive oscillations between flow and collective cues, and simulations that lost the bifurcation were unable to maintain these oscillations. The competition between these two cues is haemodynamic in origin, and demonstrates that a natural defence against bifurcation loss during remodelling exists: as vessel lumens narrow due to cell efflux, resistance to flow and shear stress increases, attracting new cells to enter and rescue the vessel from regression. Our work provides theoretical insight into the role of junction force transmission has in stabilising vasculature during remodelling and as an emergent mechanism to avoid functional shunting. When new blood vessels are created, the endothelial cells that make up these vessels migrate and rearrange in response to blood flow to remodel and optimise the vessel network. An essential part of this process is maintaining the branched structure of the network; however, it is unclear what cues cells consider at regions where vessels branch (i.e., bifurcations). In this research, we present a computer model of cell migration to interrogate the process of preserving bifurcations during remodelling. In this model, cells at bifurcations are influenced by both flow and force transmitted from neighbouring cells. We found that both cues (flow-based and collective-based) must be considered equally in order to preserve branching in the vessel network. In simulations with stable bifurcations, we demonstrated that these cues oscillate: a strong signal in one was accompanied by a weak signal in the other. Furthermore, we found that these cues naturally compete with each other due to the coupling between blood flow and the size of the blood vessels, i.e. larger vessels with more cells produce less flow signals and vice versa. Our research provides insight into how forces transmitted between neighbouring cells stabilise and preserve branching during remodelling, as well as implicates the disruption of this force transmission as a potential mechanism when remodelling goes wrong as in the case of vascular malformation.
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Affiliation(s)
- Lowell T. Edgar
- Centre for Medical Informatics, Usher Institute, The University of Edinburgh, Edinburgh, United Kingdom
- * E-mail: (LTE); (MOB)
| | - Claudio A. Franco
- Instituto de Medicina Molecular—João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Holger Gerhardt
- Max Delbrück Center for Molecular Medicine (MDC) in the Helmholtz Association, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany
| | - Miguel O. Bernabeu
- Centre for Medical Informatics, Usher Institute, The University of Edinburgh, Edinburgh, United Kingdom
- * E-mail: (LTE); (MOB)
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Sugioka K, Fukuda K, Nishida T, Kusaka S. The fibrinolytic system in the cornea: A key regulator of corneal wound healing and biological defense. Exp Eye Res 2021; 204:108459. [PMID: 33493476 DOI: 10.1016/j.exer.2021.108459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 01/05/2021] [Accepted: 01/18/2021] [Indexed: 12/16/2022]
Abstract
The cornea is a relatively unique tissue in the body in that it possesses specific features such as a lack of blood vessels that contribute to its transparency. The cornea is supplied with soluble blood components such as albumin, globulin, and fibrinogen as well as with nutrients, oxygen, and bioactive substances by diffusion from aqueous humor and limbal vessels as well as a result of its exposure to tear fluid. The healthy cornea is largely devoid of cellular components of blood such as polymorphonuclear leukocytes, monocytes-macrophages, and platelets. The location of the cornea at the ocular surface renders it susceptible to external insults, and its avascular nature necessitates the operation of healing and defense mechanisms in a manner independent of a direct blood supply. The fibrinolytic system, which was first recognized for its role in the degradation of fibrin clots in the vasculature, has also been found to contribute to various biological processes outside of blood vessels. Fibrinolytic factors thus play an important role in biological defense of the cornea. In this review, we address the function of the fibrinolytic system in corneal defense including wound healing and the inflammatory response.
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Affiliation(s)
- Koji Sugioka
- Department of Ophthalmology, Kindai University Nara Hospital, 1248-1 Otodacho, Ikoma City, Nara, 630-0293, Japan; Department of Ophthalmology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama City, Osaka, 589-8511, Japan.
| | - Ken Fukuda
- Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University, Nankoku City, Kochi, 783-8505, Japan
| | - Teruo Nishida
- Department of Ophthalmology, Kindai University Nara Hospital, 1248-1 Otodacho, Ikoma City, Nara, 630-0293, Japan; Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube City, Yamaguchi, 755-8505, Japan; Division of Cornea and Ocular Surface, Ohshima Eye Hospital, 11-8 Kamigofukumachi, Hakata-ku, Fukuoka City, Fukuoka, 812-0036, Japan
| | - Shunji Kusaka
- Department of Ophthalmology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osakasayama City, Osaka, 589-8511, Japan
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Ngowi EE, Afzal A, Sarfraz M, Khattak S, Zaman SU, Khan NH, Li T, Jiang QY, Zhang X, Duan SF, Ji XY, Wu DD. Role of hydrogen sulfide donors in cancer development and progression. Int J Biol Sci 2021; 17:73-88. [PMID: 33390834 PMCID: PMC7757040 DOI: 10.7150/ijbs.47850] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023] Open
Abstract
In recent years, a vast number of potential cancer therapeutic targets have emerged. However, developing efficient and effective drugs for the targets is of major concern. Hydrogen sulfide (H2S), one of the three known gasotransmitters, is involved in the regulation of various cellular activities such as autophagy, apoptosis, migration, and proliferation. Low production of H2S has been identified in numerous cancer types. Treating cancer cells with H2S donors is the common experimental technique used to improve H2S levels; however, the outcome depends on the concentration/dose, time, cell type, and sometimes the drug used. Both natural and synthesized donors are available for this purpose, although their effects vary independently ranging from strong cancer suppressors to promoters. Nonetheless, numerous signaling pathways have been reported to be altered following the treatments with H2S donors which suggest their potential in cancer treatment. This review will analyze the potential of H2S donors in cancer therapy by summarizing key cellular processes and mechanisms involved.
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Affiliation(s)
- Ebenezeri Erasto Ngowi
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- Department of Biological Sciences, Faculty of Science, Dar es Salaam University College of Education, Dar es Salaam 2329, Tanzania
- Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan 475004, China
| | - Attia Afzal
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- Faculty of Pharmacy, The University of Lahore, Lahore, Punjab 56400, Pakistan
| | - Muhammad Sarfraz
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan 475004, China
- Faculty of Pharmacy, The University of Lahore, Lahore, Punjab 56400, Pakistan
| | - Saadullah Khattak
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Shams Uz Zaman
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Nazeer Hussain Khan
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Tao Li
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Qi-Ying Jiang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Xin Zhang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Shao-Feng Duan
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xin-Ying Ji
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Dong-Dong Wu
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, China
- School of Stomatology, Henan University, Kaifeng, Henan 475004, China
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A biomimetic model of 3D fluid extracellular macromolecular crowding microenvironment fine-tunes ovarian cancer cells dissemination phenotype. Biomaterials 2020; 269:120610. [PMID: 33388691 DOI: 10.1016/j.biomaterials.2020.120610] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 10/21/2020] [Accepted: 12/14/2020] [Indexed: 12/15/2022]
Abstract
An early fundamental step in ovarian cancer progression is the dissemination of cancer cells through liquid environments, one of them being cancer ascites accumulated in the peritoneal cavity. These biological fluids are highly crowded with a high total macromolecule concentration. This biophysical property of fluids is widely used in tissue engineering for a few decades now, yet is largely underrated in cancer biomimetic models. To unravel the role of fluids extracellular macromolecular crowding (MMC), we exposed ovarian cancer cells (OCC) to high molecular weight inert polymer solutions. High macromolecular composition of extracellular liquid presented a differential effect: i) it impeded non-adherent OCC aggregation in suspension and, decreased their adhesion; ii) it promoted adherent OCC migration by decreasing extracellular matrix deposition. Besides, there seemed to be a direct link between the extracellular MMC and intracellular processes, especially the actin cytoskeleton organization and the nucleus morphology. In conclusion, extracellular fluid MMC orients OCC dissemination phenotype. Integrating MMC seems crucial to produce more relevant mimetic 3D in vitro fluid models to study ovarian dissemination but also to screen drugs.
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Abstract
The study aims to investigate the role of viscoelastic interactions between cells and extracellular matrix (ECM) in avascular tumor growth. Computer simulations of glioma multicellular tumor spheroid (MTS) growth are being carried out for various conditions. The calculations are based on a continuous model, which simulates oxygen transport into MTS; transitions between three cell phenotypes, cell transport, conditioned by hydrostatic forces in cell–ECM composite system, cell motility and cell adhesion. Visco-elastic cell aggregation and elastic ECM scaffold represent two compressible constituents of the composite. Cell–ECM interactions form a Transition Layer on the spheroid surface, where mechanical characteristics of tumor undergo rapid transition. This layer facilitates tumor progression to a great extent. The study demonstrates strong effects of ECM stiffness, mechanical deformations of the matrix and cell–cell adhesion on tumor progression. The simulations show in particular that at certain, rather high degrees of matrix stiffness a formation of distant multicellular clusters takes place, while at further increase of ECM stiffness subtumors do not form. The model also illustrates to what extent mere mechanical properties of cell–ECM system may contribute into variations of glioma invasion scenarios.
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Affiliation(s)
- Vladimir Kalinin
- R&D Sector, Techno-Modeling Arts Ireland, Unit 8, Cul na Raithe, A91K8KR, Louth, Ireland
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57
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Blockage of Squamous Cancer Cell Collective Invasion by FAK Inhibition Is Released by CAFs and MMP-2. Cancers (Basel) 2020; 12:cancers12123708. [PMID: 33321813 PMCID: PMC7764466 DOI: 10.3390/cancers12123708] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 12/07/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Cancers include a diverse collection of cells harboring distinct molecular signatures with different levels of pro-metastatic activities. This intratumoral heterogeneity and phenotypic plasticity are major causes of targeted therapeutic failure and it should be considered when developing prognostic tests. Through the analysis of the Focal Adhesion Kinase (FAK) protein and the matrix metalloprotease MMP-2, both implicated in multiple steps of the metastatic spectrum, in complex multicellular tumor spheroids we show that cancer cell populations over-expressing MMP-2 or cancer-associated fibroblasts can release FAK-deficient cancer cells from their constrained metastatic fitness. Consistently, MMP-2, not FAK, serves as an independent prognostic factor in head and neck squamous cell carcinomas. Measurement of intratumor heterogeneity facilitate the development of more efficient biomarkers to predict the risk of metastasis and of more-effective personalized cancer therapies. Abstract Metastasis remains a clinically unsolved issue in cancer that is initiated by the acquisition of collective migratory properties of cancer cells. Phenotypic and functional heterogeneity that arise among cancer cells within the same tumor increase cellular plasticity and promote metastasis, however, their impact on collective cell migration is incompletely understood. Here, we show that in vitro collective cancer cell migration depends on FAK and MMP-2 and on the presence of cancer-associated fibroblasts (CAFs). The absence of functional FAK rendered cancer cells incapable of invading the surrounding stroma. However, CAFs and cancer cells over-expressing MMP-2 released FAK-deficient cells from this constraint by taking the leader positions in the invasive tracks, pushing FAK-deficient squamous cell carcinoma (SCC) cells towards the stroma and leading to the transformation of non-invasive cells into invasive cells. Our cell-based studies and the RNAseq data from the TCGA cohort of patients with head and neck squamous cell carcinomas reveal that, although both FAK and MMP-2 over-expression are associated with epithelial–mesenchymal transition, it is only MMP-2, not FAK, that functions as an independent prognostic factor. Given the significant role of MMP-2 in cancer dissemination, targeting of this molecule, better than FAK, presents a more promising opportunity to block metastasis.
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Niu L, Yang W, Duan L, Wang X, Li Y, Xu C, Liu C, Zhang Y, Zhou W, Liu J, Zhao Q, Han Y, Hong L, Fan D. Biological functions and theranostic potential of HMGB family members in human cancers. Ther Adv Med Oncol 2020; 12:1758835920970850. [PMID: 33224279 PMCID: PMC7659026 DOI: 10.1177/1758835920970850] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 10/08/2020] [Indexed: 12/14/2022] Open
Abstract
The high mobility group box (HMGB) protein family consists of four members: HMGB1, 2, 3, and 4. They share similar amino acid sequences and identical functional regions, especially HMGB1, 2, and 3. The homology in structure may lead to similarity in function. In fact, though their targets may be different, they all possess the fundamental function of binding and distorting target DNAs. However, further research confirmed they are distributed differently in tissues and involved in various distinct physiological and pathological cellular processes, including cell proliferation, division, migration, and differentiation. Recently, the roles of HMGB family members in carcinogenesis has been widely investigated; however, systematic discussion on their functions and clinical values in malignant tumors is limited. In this review, we mainly review and summarize recent advances in knowledge of HMGB family members in terms of structure, distribution, biochemical cascades, and specific mechanisms regarding tumor progression. Importantly, the diagnostic, prognostic, and therapeutic value of these proteins in cancers is discussed. Finally, we envisage the orientation and challenges of this field in further studies.
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Affiliation(s)
- Liaoran Niu
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Wanli Yang
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Lili Duan
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Xiaoqian Wang
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Yiding Li
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Chengchao Xu
- 94719 Military Hospital, Ji'an, Jiangxi Province, China
| | - Chao Liu
- School of Basic Medical Sciences, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Yujie Zhang
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Wei Zhou
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Jinqiang Liu
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Qingchuan Zhao
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Yu Han
- Department of Otolaryngology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, China
| | - Liu Hong
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Shaanxi Province, 710032, China
| | - Daiming Fan
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
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Chou SY, Lin CY, Cassino T, Wan L, LeDuc PR. Probing coordinated co-culture cancer related motility through differential micro-compartmentalized elastic substrates. Sci Rep 2020; 10:18519. [PMID: 33116169 PMCID: PMC7595178 DOI: 10.1038/s41598-020-74575-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 09/13/2020] [Indexed: 11/25/2022] Open
Abstract
Cell development and behavior are driven by internal genetic programming, but the external microenvironment is increasingly recognized as a significant factor in cell differentiation, migration, and in the case of cancer, metastatic progression. Yet it remains unclear how the microenvironment influences cell processes, especially when examining cell motility. One factor that affects cell motility is cell mechanics, which is known to be related to substrate stiffness. Examining how cells interact with each other in response to mechanically differential substrates would allow an increased understanding of their coordinated cell motility. In order to probe the effect of substrate stiffness on tumor related cells in greater detail, we created hard–soft–hard (HSH) polydimethylsiloxane (PDMS) substrates with alternating regions of different stiffness (200 and 800 kPa). We then cultured WI-38 fibroblasts and A549 epithelial cells to probe their motile response to the substrates. We found that when the 2 cell types were exposed simultaneously to the same substrate, fibroblasts moved at an increased speed over epithelial cells. Furthermore, the HSH substrate allowed us to physically guide and separate the different cell types based on their relative motile speed. We believe that this method and results will be important in a diversity of areas including mechanical microenvironment, cell motility, and cancer biology.
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Affiliation(s)
- Szu-Yuan Chou
- Departments of Mechanical Engineering, Biomedical Engineering, Computational Biology, and Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Chang-You Lin
- Departments of Physics, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Theresa Cassino
- Departments of Mechanical Engineering, Biomedical Engineering, Computational Biology, and Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Li Wan
- Departments of Mechanical Engineering, Biomedical Engineering, Computational Biology, and Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Philip R LeDuc
- Departments of Mechanical Engineering, Biomedical Engineering, Computational Biology, and Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
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60
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Lachowski D, Cortes E, Matellan C, Rice A, Lee DA, Thorpe SD, del Río Hernández AE. G Protein-Coupled Estrogen Receptor Regulates Actin Cytoskeleton Dynamics to Impair Cell Polarization. Front Cell Dev Biol 2020; 8:592628. [PMID: 33195261 PMCID: PMC7649801 DOI: 10.3389/fcell.2020.592628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/24/2020] [Indexed: 12/30/2022] Open
Abstract
Mechanical forces regulate cell functions through multiple pathways. G protein-coupled estrogen receptor (GPER) is a seven-transmembrane receptor that is ubiquitously expressed across tissues and mediates the acute cellular response to estrogens. Here, we demonstrate an unidentified role of GPER as a cellular mechanoregulator. G protein-coupled estrogen receptor signaling controls the assembly of stress fibers, the dynamics of the associated focal adhesions, and cell polarization via RhoA GTPase (RhoA). G protein-coupled estrogen receptor activation inhibits F-actin polymerization and subsequently triggers a negative feedback that transcriptionally suppresses the expression of monomeric G-actin. Given the broad expression of GPER and the range of cytoskeletal changes modulated by this receptor, our findings position GPER as a key player in mechanotransduction.
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Affiliation(s)
- Dariusz Lachowski
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Ernesto Cortes
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Carlos Matellan
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Alistair Rice
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - David A. Lee
- Institute of Bioengineering, School of Engineering and Material Science, Queen Mary University of London, London, United Kingdom
| | - Stephen D. Thorpe
- Institute of Bioengineering, School of Engineering and Material Science, Queen Mary University of London, London, United Kingdom
- UCD School of Medicine, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Armando E. del Río Hernández
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
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Barnes KM, Fan L, Moyle MW, Brittin CA, Xu Y, Colón-Ramos DA, Santella A, Bao Z. Cadherin preserves cohesion across involuting tissues during C. elegans neurulation. eLife 2020; 9:e58626. [PMID: 33030428 PMCID: PMC7544503 DOI: 10.7554/elife.58626] [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: 05/06/2020] [Accepted: 09/25/2020] [Indexed: 12/17/2022] Open
Abstract
The internalization of the central nervous system, termed neurulation in vertebrates, is a critical step in embryogenesis. Open questions remain regarding how force propels coordinated tissue movement during the process, and little is known as to how internalization happens in invertebrates. We show that in C. elegans morphogenesis, apical constriction in the retracting pharynx drives involution of the adjacent neuroectoderm. HMR-1/cadherin mediates this process via inter-tissue attachment, as well as cohesion within the neuroectoderm. Our results demonstrate that HMR-1 is capable of mediating embryo-wide reorganization driven by a centrally located force generator, and indicate a non-canonical use of cadherin on the basal side of an epithelium that may apply to vertebrate neurulation. Additionally, we highlight shared morphology and gene expression in tissues driving involution, which suggests that neuroectoderm involution in C. elegans is potentially homologous with vertebrate neurulation and thus may help elucidate the evolutionary origin of the brain.
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Affiliation(s)
- Kristopher M Barnes
- Developmental Biology Program, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
- Graduate Program in Neuroscience, Weill Cornell MedicineNew YorkUnited States
| | - Li Fan
- Developmental Biology Program, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
| | - Mark W Moyle
- Department of Neuroscience and Department of Cell Biology, Yale University School of MedicineNew HavenUnited States
| | - Christopher A Brittin
- Developmental Biology Program, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
| | - Yichi Xu
- Developmental Biology Program, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
| | - Daniel A Colón-Ramos
- Department of Neuroscience and Department of Cell Biology, Yale University School of MedicineNew HavenUnited States
- Instituto de Neurobiología, Recinto de Ciencias Médicas, Universidad de Puerto RicoSan JuanUnited States
| | - Anthony Santella
- Developmental Biology Program, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
- Molecular Cytology Core, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
| | - Zhirong Bao
- Developmental Biology Program, Memorial Sloan Kettering Cancer CenterNew YorkUnited States
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62
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Hughes R, Yeomans JM. Collective chemotaxis of active nematic droplets. Phys Rev E 2020; 102:020601. [PMID: 32942458 DOI: 10.1103/physreve.102.020601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/12/2020] [Indexed: 11/07/2022]
Abstract
Collective chemotaxis plays a key role in the navigation of cell clusters in, e.g., embryogenesis and cancer metastasis. Using the active nematic continuum equations, coupled to a chemical field that regulates activity, we demonstrate and explain a physical mechanism that results in collective chemotaxis. The activity naturally leads to cell polarization at the cluster interface which induces outward flows. The chemical gradient then breaks the symmetry of the flow field, leading to a net motion. The velocity is independent of the cluster size, in agreement with experiment.
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Affiliation(s)
- Rian Hughes
- Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - Julia M Yeomans
- Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
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63
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The effects of coating culture dishes with collagen on fibroblast cell shape and swirling pattern formation. J Biol Phys 2020; 46:351-369. [PMID: 32860547 PMCID: PMC7719137 DOI: 10.1007/s10867-020-09556-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 08/10/2020] [Indexed: 12/11/2022] Open
Abstract
Motile human-skin fibroblasts form macroscopic swirling patterns when grown to confluence on a culture dish. In this paper, we investigate the effect of coating the culture-dish surface with collagen on the resulting pattern, using human-skin fibroblast NB1RGB cells as the model system. The presence of the collagen coating is expected to enhance the adherence of the fibroblasts to the dish surface, and thereby also enhance the traction that the fibroblasts have as they move. We find that, contrary to our initial expectation, the coating does not significantly affect the motility of the fibroblasts. Their eventual number density at confluence is also unaffected. However, the coherence length of cell orientation in the swirling pattern is diminished. We also find that the fibroblasts cultured in collagen-coated dishes are rounder in shape and shorter in perimeter, compared with those cultured in uncoated polystyrene or glass culture dishes. We hypothesise that the rounder cell-shape which weakens the cell–cell nematic contact interaction is responsible for the change in coherence length. A simple mathematical model of the migrating fibroblasts is constructed, which demonstrates that constant motility with weaker nematic interaction strength does indeed lead to the shortening of the coherence length.
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64
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Pajic-Lijakovic I, Milivojevic M. Collective cell migration and residual stress accumulation: Rheological consideration. J Biomech 2020; 108:109898. [PMID: 32636009 DOI: 10.1016/j.jbiomech.2020.109898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/22/2020] [Accepted: 06/06/2020] [Indexed: 10/24/2022]
Abstract
Stress generation during collective cell migration represents one of the key factors which influence the configuration of migrating cells, viscoelasticity of multicellular systems and their inter-relation. Local generation of stress (normal and shear) is significant even in 2D. Normal stress is primarily accumulated within a core region of migrating cell clusters during their movement through the dense environment and during the collisions of migrating cell clusters caused by uncorrelated motility. Shear stress can be significant within perturbed boundary layers around migrating clusters. Cells are more sensitive to the action of shear stress compared with normal stress. Shear stress of a few Pa significantly influences cell state. Prior studies have shown that collectively migrating cells move in such a way to minimize this stress, but it has not yet been determined how cells effectively minimize it. Deeper insight into possible cell mechanisms for minimizing undesirable shear stress would be of great importance because it may help to direct morphogenesis, accelerate wound healing or prevent cancer invasion. In the proposed model three primary mechanisms in which cells may reduce shear are given: decreasing speed, tissue thickening, and/or reducing slip effects. Suggestions obtained from the proposed model indicate a need for further experimental studies that will reveal whether the heterogeneity in the cell-cell adhesion types correlates well with the stiffness inhomogeneity, or changes in the adhesion clustering, cytoskeletal linkage or some other modification to the adhesion complex (adherens junctions or tight junctions) are occurring to influence overall adhesive strength.
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Affiliation(s)
- Ivana Pajic-Lijakovic
- Faculty of Technology and Metallurgy, Belgrade University, Karnegijeva 4, Belgrade, Serbia.
| | - Milan Milivojevic
- Faculty of Technology and Metallurgy, Belgrade University, Karnegijeva 4, Belgrade, Serbia
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65
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Alexandrova AY, Chikina AS, Svitkina TM. Actin cytoskeleton in mesenchymal-to-amoeboid transition of cancer cells. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 356:197-256. [PMID: 33066874 DOI: 10.1016/bs.ircmb.2020.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
During development of metastasis, tumor cells migrate through different tissues and encounter different extracellular matrices. An ability of cells to adapt mechanisms of their migration to these diverse environmental conditions, called migration plasticity, gives tumor cells an advantage over normal cells for long distant dissemination. Different modes of individual cell motility-mesenchymal and amoeboid-are driven by different molecular mechanisms, which largely depend on functions of the actin cytoskeleton that can be modulated in a wide range by cellular signaling mechanisms in response to environmental conditions. Various triggers can switch one motility mode to another, but regulations of these transitions are incompletely understood. However, understanding of the mechanisms driving migration plasticity is instrumental for finding anti-cancer treatment capable to stop cancer metastasis. In this review, we discuss cytoskeletal features, which allow the individually migrating cells to switch between mesenchymal and amoeboid migrating modes, called mesenchymal-to-amoeboid transition (MAT). We briefly describe main characteristics of different cell migration modes, and then discuss the triggering factors that initiate MAT with special attention to cytoskeletal features essential for migration plasticity.
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Affiliation(s)
- Antonina Y Alexandrova
- Laboratory of Mechanisms of Carcinogenesis, N.N. Blokhin Russian Cancer Research Center, Moscow, Russia.
| | - Aleksandra S Chikina
- Cell Migration and Invasion and Spatio-Temporal Regulation of Antigen Presentation teams, UMR144/U932 Institut Curie, Paris, France
| | - Tatyana M Svitkina
- Department of Biology, University of Pennsylvania, Philadelphia, PA, United States
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66
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Bostan LE, Almqvist S, Pullar CE. A pulsed current electric field alters protein expression creating a wound healing phenotype in human skin cells. Regen Med 2020; 15:1611-1623. [PMID: 32633622 DOI: 10.2217/rme-2019-0087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Pulsed current (PC) electric field (EF) devices promote healing in chronic wounds but the underpinning mechanisms are largely unknown. The gap between clinical evidence and mechanistic understanding limits device uptake in clinics. Materials & methods: Migration, proliferation and gene/protein expression profiles were investigated in the presence/absence of PCEF, in skin: keratinocytes (NHK); dermal fibroblasts (HDF); dermal microvascular endothelial cells (HDMEC) and macrophages (THP-1). Results: While PCEF had little effect on migration or proliferation, it significantly altered the expression of 31 genes and the secretion of 7 pro-angiogenic and pro-regenerative growth factors using ELISAs. Conclusion: PCEF significantly altered skin cell genomes/proteomes which provides some evidence of how PCEF devices promote healing of chronic wounds.
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Affiliation(s)
- Luciana E Bostan
- University of Southampton, Faculty of Medicine, Southampton, SO16 6YD, UK
| | - Sofia Almqvist
- Mölnlycke Health Care AB, (P.O. Box 13080 SE-402 52) Göteborg, Sweden
| | - Christine E Pullar
- Department of Molecular & Cell Biology, College of Life Sciences, University of Leicester, University Road, Leicester LE1 7RH, UK
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67
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The Significance of Circulating Tumor Cells in Patients with Hepatocellular Carcinoma: Real-Time Monitoring and Moving Targets for Cancer Therapy. Cancers (Basel) 2020; 12:cancers12071734. [PMID: 32610709 PMCID: PMC7408113 DOI: 10.3390/cancers12071734] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/26/2020] [Accepted: 06/27/2020] [Indexed: 02/08/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is ranked as the sixth most common cancer around the world. With the emergence of the state-of-the-art modalities lately, such as liver transplantation, image-guided ablation, and chemoembolization, the death rate is still high due to high metastasis rate after therapy. Observation by biannual ultrasonography allows effective diagnosis at an early stage for candidates with no extrahepatic metastasis, but its effectiveness still remains unsatisfactory. Developing a new test with improved effectiveness and specificity is urgently needed for HCC diagnosis, especially for patients after first line therapy. Circulating tumor cells (CTCs) are a small sub-population of tumor cells in human peripheral blood, they release from the primary tumor and invade into the blood circulatory system, thereby residing into the distal tissues and survive. As CTCs have specific and aggressive properties, they can evade from immune defenses, induce gene alterations, and modulate signal transductions. Ultimately, CTCs can manipulate tumor behaviors and patient reactions to anti-tumor treatment. Given the fact that in HCC blood is present around the immediate vicinity of the tumor, which allows thousands of CTCs to release into the blood circulation daily, so CTCs are considered to be the main cause for HCC occurrence, and are also a pivotal factor for HCC prognosis. In this review, we highlight the characteristics and enrichment strategies of CTCs, and focus on the use of CTCs for tumor evaluation and management in patients with HCC.
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68
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Witko T, Solarz D, Feliksiak K, Haraźna K, Rajfur Z, Guzik M. Insights into In Vitro Wound Closure on Two Biopolyesters-Polylactide and Polyhydroxyoctanoate. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2793. [PMID: 32575761 PMCID: PMC7344463 DOI: 10.3390/ma13122793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 12/12/2022]
Abstract
Two bio-based polymers have been compared in this study, namely: polylactide (PLA) and polyhydroxyoctanoate (PHO). Due to their properties such as biocompatibility, and biointegrity they are considered to be valuable materials for medical purposes, i.e., creating scaffolds or wound dressings. Presented biopolymers were investigated for their impact on cellular migration strategies of mouse embryonic fibroblasts (MEF) 3T3 cell line. Advanced microscopic techniques, including confocal microscopy and immunofluorescent protocols, enabled the thorough analysis of the cell shape and migration. Application of wound healing assay combined with dedicated software allowed us to perform quantitative analysis of wound closure dynamics. The outcome of the experiments demonstrated that the wound closure dynamics for PLA differs from PHO. Single fibroblasts grown on PLA moved 1.5-fold faster, than those migrating on the PHO surface. However, when a layer of cells was considered, the wound closure was by 4.1 h faster for PHO material. The accomplished work confirms the potential of PLA and PHO as excellent candidates for medical applications, due to their properties that propagate cell migration, vitality, and proliferation-essential cell processes in the healing of damaged tissues.
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Affiliation(s)
- Tomasz Witko
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
| | - Daria Solarz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Karolina Feliksiak
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Katarzyna Haraźna
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
| | - Zenon Rajfur
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Maciej Guzik
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
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69
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Zhang F, Zarkada G, Yi S, Eichmann A. Lymphatic Endothelial Cell Junctions: Molecular Regulation in Physiology and Diseases. Front Physiol 2020; 11:509. [PMID: 32547411 PMCID: PMC7274196 DOI: 10.3389/fphys.2020.00509] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/27/2020] [Indexed: 12/13/2022] Open
Abstract
Lymphatic endothelial cells (LECs) lining lymphatic vessels develop specialized cell-cell junctions that are crucial for the maintenance of vessel integrity and proper lymphatic vascular functions. Successful lymphatic drainage requires a division of labor between lymphatic capillaries that take up lymph via open "button-like" junctions, and collectors that transport lymph to veins, which have tight "zipper-like" junctions that prevent lymph leakage. In recent years, progress has been made in the understanding of these specialized junctions, as a result of the application of state-of-the-art imaging tools and novel transgenic animal models. In this review, we discuss lymphatic development and mechanisms governing junction remodeling between button and zipper-like states in LECs. Understanding lymphatic junction remodeling is important in order to unravel lymphatic drainage regulation in obesity and inflammatory diseases and may pave the way towards future novel therapeutic interventions.
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Affiliation(s)
- Feng Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Georgia Zarkada
- Department of Cellular and Molecular Physiology, Cardiovascular Research Center, Yale School of Medicine, Yale University, New Haven, CT, United States
| | - Sanjun Yi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Anne Eichmann
- Department of Cellular and Molecular Physiology, Cardiovascular Research Center, Yale School of Medicine, Yale University, New Haven, CT, United States.,INSERM U970, Paris Cardiovascular Research Center, Paris, France
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70
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Li Y, Vieceli FM, Gonzalez WG, Li A, Tang W, Lois C, Bronner ME. In Vivo Quantitative Imaging Provides Insights into Trunk Neural Crest Migration. Cell Rep 2020; 26:1489-1500.e3. [PMID: 30726733 PMCID: PMC6449054 DOI: 10.1016/j.celrep.2019.01.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/29/2018] [Accepted: 01/10/2019] [Indexed: 12/29/2022] Open
Abstract
Neural crest (NC) cells undergo extensive migrations during development. Here, we couple in vivo live imaging at high resolution with custom software tools to reveal dynamic migratory behavior in chick embryos. Trunk NC cells migrate as individuals with both stochastic and biased features as they move dorsoventrally to form peripheral ganglia. Their leading edge displays a prominent fan-shaped lamellipodium that reorients upon cell-cell contact. Computational analysis reveals that when the lamellipodium of one cell touches the body of another, the two cells undergo "contact attraction," often moving together and then separating via a pulling force exerted by lamellipodium. Targeted optical manipulation shows that cell interactions coupled with cell density generate a long-range biased random walk behavior, such that cells move from high to low density. In contrast to chain migration noted at other axial levels, the results show that individual trunk NC cells navigate the complex environment without tight coordination between neighbors.
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Affiliation(s)
- Yuwei Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Felipe M Vieceli
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Walter G Gonzalez
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Ang Li
- Department of Kinesiology, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Weiyi Tang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Carlos Lois
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Marianne E Bronner
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
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71
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Ben Tahar I, Kus‐Liśkiewicz M, Lara Y, Javaux E, Fickers P. Characterization of a nontoxic pyomelanin pigment produced by the yeast
Yarrowia lipolytica. Biotechnol Prog 2020; 36:e2912. [DOI: 10.1002/btpr.2912] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Imen Ben Tahar
- Microbial Processes and Interactions, TERRA Teaching and Research CentreUniversity of Liège ‐ Gembloux Agro Bio Tech Gembloux Belgium
| | | | - Yannick Lara
- Early Life Traces & Evolution – Astrobiology, UR Astrobiology, Geology DepartmentUniversity of Liège Gembloux Belgium
| | - Emmanuelle Javaux
- Early Life Traces & Evolution – Astrobiology, UR Astrobiology, Geology DepartmentUniversity of Liège Gembloux Belgium
| | - Patrick Fickers
- Microbial Processes and Interactions, TERRA Teaching and Research CentreUniversity of Liège ‐ Gembloux Agro Bio Tech Gembloux Belgium
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72
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Kashgari G, Meinecke L, Gordon W, Ruiz B, Yang J, Ma AL, Xie Y, Ho H, Plikus MV, Nie Q, Jester JV, Andersen B. Epithelial Migration and Non-adhesive Periderm Are Required for Digit Separation during Mammalian Development. Dev Cell 2020; 52:764-778.e4. [PMID: 32109382 DOI: 10.1016/j.devcel.2020.01.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/26/2019] [Accepted: 01/28/2020] [Indexed: 01/04/2023]
Abstract
The fusion of digits or toes, syndactyly, can be part of complex syndromes, including van der Woude syndrome. A subset of van der Woude cases is caused by dominant-negative mutations in the epithelial transcription factor Grainyhead like-3 (GRHL3), and Grhl3-/-mice have soft-tissue syndactyly. Although impaired interdigital cell death of mesenchymal cells causes syndactyly in multiple genetic mutants, Grhl3-/- embryos had normal interdigital cell death, suggesting alternative mechanisms for syndactyly. We found that in digit separation, the overlying epidermis forms a migrating interdigital epithelial tongue (IET) when the epithelium invaginates to separate the digits. Normally, the non-adhesive surface periderm allows the IET to bifurcate as the digits separate. In contrast, in Grhl3-/- embryos, the IET moves normally between the digits but fails to bifurcate because of abnormal adhesion of the periderm. Our study identifies epidermal developmental processes required for digit separation.
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Affiliation(s)
- Ghaidaa Kashgari
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Lina Meinecke
- Department of Mathematics, School of Physical Sciences, University of California, Irvine, Irvine, CA, USA; Department of Developmental & Cell Biology, School of the Biological Sciences, University of California, Irvine, Irvine, CA, USA
| | - William Gordon
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Bryan Ruiz
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Jady Yang
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Amy Lan Ma
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Yilu Xie
- The Gavin Herbert Eye Institute, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Hsiang Ho
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Maksim V Plikus
- Department of Developmental & Cell Biology, School of the Biological Sciences, University of California, Irvine, Irvine, CA, USA
| | - Qing Nie
- Department of Mathematics, School of Physical Sciences, University of California, Irvine, Irvine, CA, USA; Department of Developmental & Cell Biology, School of the Biological Sciences, University of California, Irvine, Irvine, CA, USA
| | - James V Jester
- The Gavin Herbert Eye Institute, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Bogi Andersen
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA; Department of Medicine, School of Medicine, University of California, Irvine, Irvine, CA, USA.
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73
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ERM Proteins at the Crossroad of Leukocyte Polarization, Migration and Intercellular Adhesion. Int J Mol Sci 2020; 21:ijms21041502. [PMID: 32098334 PMCID: PMC7073024 DOI: 10.3390/ijms21041502] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
Ezrin, radixin and moesin proteins (ERMs) are plasma membrane (PM) organizers that link the actin cytoskeleton to the cytoplasmic tail of transmembrane proteins, many of which are adhesion receptors, in order to regulate the formation of F-actin-based structures (e.g., microspikes and microvilli). ERMs also effect transmission of signals from the PM into the cell, an action mainly exerted through the compartmentalized activation of the small Rho GTPases Rho, Rac and Cdc42. Ezrin and moesin are the ERMs more highly expressed in leukocytes, and although they do not always share functions, both are mainly regulated through phosphatidylinositol 4,5-bisphosphate (PIP2) binding to the N-terminal band 4.1 protein-ERM (FERM) domain and phosphorylation of a conserved Thr in the C-terminal ERM association domain (C-ERMAD), exerting their functions through a wide assortment of mechanisms. In this review we will discuss some of these mechanisms, focusing on how they regulate polarization and migration in leukocytes, and formation of actin-based cellular structures like the phagocytic cup-endosome and the immune synapse in macrophages/neutrophils and lymphocytes, respectively, which represent essential aspects of the effector immune response.
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74
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Janiszewska M, Primi MC, Izard T. Cell adhesion in cancer: Beyond the migration of single cells. J Biol Chem 2020; 295:2495-2505. [PMID: 31937589 DOI: 10.1074/jbc.rev119.007759] [Citation(s) in RCA: 311] [Impact Index Per Article: 77.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Homeostasis in healthy tissues strongly relies on cell-to-cell adhesion and cell-to-extracellular matrix interactions. For instance, normal epithelial cells maintain tissue structure by adhering to each other and to the extracellular matrix. The proteins that mediate these distinct interactions are collectively called cell adhesion molecules and are divided into four major groups: cadherins, integrins, selectins, and immunoglobulins. They not only physically anchor cells, but also critically integrate signaling between the extracellular microenvironment and cells. These signals include biochemical cues, as adhesion proteins can both act as ligand-activated receptors and activate mechanotransduction triggered by changes in the physical environment. Molecular mechanisms related to cell adhesion signaling have been extensively studied, especially because mutations and changes in expression of these proteins, particularly cadherins and integrins, are frequently associated with diseases ranging from developmental intellectual disability to cancer. In fact, two major hallmarks of cancer, loss of cell-to-cell adhesion and anchorage-independent growth, are both dependent on cell adhesion molecules. Despite many studies elucidating the relationships between malignant transformation and metastasis and cellular adhesion processes, several areas still await exploration. Here, we highlight recently discovered roles of adhesion molecules in collective cancer cell migration and discuss the utility of three-dimensional models in studying cell-cell adhesion. We also describe recent therapeutic approaches targeting adhesion molecules.
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Affiliation(s)
- Michalina Janiszewska
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458.
| | - Marina Candido Primi
- Cell Adhesion Laboratory, Department of Integrative Structural and Computational Biology, The Scripps Research Institute, Jupiter, Florida 33458
| | - Tina Izard
- Cell Adhesion Laboratory, Department of Integrative Structural and Computational Biology, The Scripps Research Institute, Jupiter, Florida 33458
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75
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Padhi A, Thomson AH, Perry JB, Davis GN, McMillan RP, Loesgen S, Kaweesa EN, Kapania R, Nain AS, Brown DA. Bioenergetics underlying single-cell migration on aligned nanofiber scaffolds. Am J Physiol Cell Physiol 2019; 318:C476-C485. [PMID: 31875698 DOI: 10.1152/ajpcell.00221.2019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cell migration is centrally involved in a myriad of physiological processes, including morphogenesis, wound healing, tissue repair, and metastatic growth. The bioenergetics that underlie migratory behavior are not fully understood, in part because of variations in cell culture media and utilization of experimental cell culture systems that do not model physiological connective extracellular fibrous networks. In this study, we evaluated the bioenergetics of C2C12 myoblast migration and force production on fibronectin-coated nanofiber scaffolds of controlled diameter and alignment, fabricated using a nonelectrospinning spinneret-based tunable engineered parameters (STEP) platform. The contribution of various metabolic pathways to cellular migration was determined using inhibitors of cellular respiration, ATP synthesis, glycolysis, or glucose uptake. Despite immediate effects on oxygen consumption, mitochondrial inhibition only modestly reduced cell migration velocity, whereas inhibitors of glycolysis and cellular glucose uptake led to striking decreases in migration. The migratory metabolic sensitivity was modifiable based on the substrates present in cell culture media. Cells cultured in galactose (instead of glucose) showed substantial migratory sensitivity to mitochondrial inhibition. We used nanonet force microscopy to determine the bioenergetic factors responsible for single-cell force production and observed that neither mitochondrial nor glycolytic inhibition altered single-cell force production. These data suggest that myoblast migration is heavily reliant on glycolysis in cells grown in conventional media. These studies have wide-ranging implications for the causes, consequences, and putative therapeutic treatments aimed at cellular migration.
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Affiliation(s)
- Abinash Padhi
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia
| | - Alexander H Thomson
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia
| | - Justin B Perry
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia
| | - Grace N Davis
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia
| | - Ryan P McMillan
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia.,Virginia Tech Metabolism Core, Blacksburg, Virginia
| | - Sandra Loesgen
- Department of Chemistry, Oregon State University, Corvallis, Oregon
| | | | - Rakesh Kapania
- Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, Virginia
| | - Amrinder S Nain
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia
| | - David A Brown
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia.,Virginia Tech Center for Drug Discovery, Blacksburg, Virginia.,Virginia Tech Metabolism Core, Blacksburg, Virginia
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Schratter G, Scheruebel S, Langthaler S, Ester K, Pelzmann B, Ghaffari-Tabrizi-Wizsy N, Rezania S, Gorischek A, Platzer D, Zorn-Pauly K, Ahammer H, Prokesch A, Stanzer S, Devaney TTJ, Schmidt K, Jahn SW, Prassl R, Bauernhofer T, Schreibmayer W. GIRK1 triggers multiple cancer-related pathways in the benign mammary epithelial cell line MCF10A. Sci Rep 2019; 9:19277. [PMID: 31848385 PMCID: PMC6917815 DOI: 10.1038/s41598-019-55683-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 11/21/2019] [Indexed: 11/20/2022] Open
Abstract
Excessive expression of subunit 1 of GIRK1 in ER+ breast tumors is associated with reduced survival times and increased lymph node metastasis in patients. To investigate possible tumor-initiating properties, benign MCF10A and malign MCF7 mammary epithelial cells were engineered to overexpress GIRK1 neoplasia associated vital parameters and resting potentials were measured and compared to controls. The presence of GIRK1 resulted in resting potentials negative to the controls. Upon GIRK1 overexpression, several cellular pathways were regulated towards pro-tumorigenic action as revealed by comparison of transcriptomes of MCF10AGIRK1 with the control (MCF10AeGFP). According to transcriptome analysis, cellular migration was promoted while wound healing and extracellular matrix interactions were impaired. Vital parameters in MCF7 cells were affected akin the benign MCF10A lines, but to a lesser extent. Thus, GIRK1 regulated cellular pathways in mammary epithelial cells are likely to contribute to the development and progression of breast cancer.
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Affiliation(s)
- Gebhard Schratter
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Susanne Scheruebel
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Sonja Langthaler
- Institute for Health Care Engineering with European Testing Center of Medical Devices, Graz University of Technology, Graz, Austria
| | - Katja Ester
- Laboratory of Experimental Therapy, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia
| | - Brigitte Pelzmann
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | | | - Simin Rezania
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Astrid Gorischek
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Dieter Platzer
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Klaus Zorn-Pauly
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Helmut Ahammer
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
| | - Andreas Prokesch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, 8010, Graz, Austria
| | - Stefanie Stanzer
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Trevor T J Devaney
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Kurt Schmidt
- Institute of Pharmaceutical Sciences, Karl Franzens University of Graz, Graz, Austria
| | - Stephan W Jahn
- Diagnostic & Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Ruth Prassl
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Thomas Bauernhofer
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria
| | - Wolfgang Schreibmayer
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria.
- Research Unit on Ion Channels and Cancer Biology, Medical University of Graz, Graz, Austria.
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77
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Rehman SRU, Augustine R, Zahid AA, Ahmed R, Tariq M, Hasan A. Reduced Graphene Oxide Incorporated GelMA Hydrogel Promotes Angiogenesis For Wound Healing Applications. Int J Nanomedicine 2019; 14:9603-9617. [PMID: 31824154 PMCID: PMC6901121 DOI: 10.2147/ijn.s218120] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/09/2019] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Non-healing or slow healing chronic wounds are among serious complications of diabetes that eventually result in amputation of limbs and increased morbidities and mortalities. Chronic diabetic wounds show reduced blood vessel formation (lack of angiogenesis), inadequate cell proliferation and poor cell migration near wounds. In this paper, we report the development of a hydrogel-based novel wound dressing material loaded with reduced graphene oxide (rGO) to promote cell proliferation, cell migration and angiogenesis for wound healing applications. METHODS Gelatin-methacryloyl (GelMA) based hydrogels loaded with different concentrations of rGO were fabricated by UV crosslinking. Morphological and physical characterizations (porosity, degradation, and swelling) of rGO incorporated GelMA hydrogel was performed. In vitro cell proliferation, cell viability and cell migration potential of the hydrogels were analyzed by MTT assay, live/dead staining, and wound healing scratch assay respectively. Finally, in vivo chicken embryo angiogenesis (CEO) testing was performed to evaluate the angiogenic potential of the prepared hydrogel. RESULTS The experimental results showed that the developed hydrogel possessed enough porosity and exudate-absorbing capacity. The biocompatibility of prepared hydrogel on three different cell lines (3T3 fibroblasts, EA.hy926 endothelial cells, and HaCaT keratinocytes) was confirmed by in vitro cell culture studies (live/dead assay). The GelMA hydrogel containing 0.002% w/w rGO considerably increased the proliferation and migration of cells as evident from MTT assay and wound healing scratch assay. Furthermore, rGO impregnated GelMA hydrogel significantly enhanced the angiogenesis in the chick embryo model. CONCLUSION The positive effect of 0.002% w/w rGO impregnated GelMA hydrogels on angiogenesis, cell migration and cell proliferation suggests that these formulations could be used as a functional wound healing material for the healing of chronic wounds.
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Affiliation(s)
- Syed Raza ur Rehman
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Robin Augustine
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Alap Ali Zahid
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Rashid Ahmed
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Muhammad Tariq
- Department of Biotechnology, Faculty of Science, Mirpur University of Science and Technology, Mirpur10250, AJK, Pakistan
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
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Hou H, Gan T, Yang Y, Zhu X, Liu S, Guo W, Hao J. Using deep reinforcement learning to speed up collective cell migration. BMC Bioinformatics 2019; 20:571. [PMID: 31760946 PMCID: PMC6876083 DOI: 10.1186/s12859-019-3126-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Collective cell migration is a significant and complex phenomenon that affects many basic biological processes. The coordination between leader cell and follower cell affects the rate of collective cell migration. However, there are still very few papers on the impacts of the stimulus signal released by the leader on the follower. Tracking cell movement using 3D time-lapse microscopy images provides an unprecedented opportunity to systematically study and analyze collective cell migration. RESULTS Recently, deep reinforcement learning algorithms have become very popular. In our paper, we also use this method to train the number of cells and control signals. By experimenting with single-follower cell and multi-follower cells, it is concluded that the number of stimulation signals is proportional to the rate of collective movement of the cells. Such research provides a more diverse approach and approach to studying biological problems. CONCLUSION Traditional research methods are always based on real-life scenarios, but as the number of cells grows exponentially, the research process is too time consuming. Agent-based modeling is a robust framework that approximates cells to isotropic, elastic, and sticky objects. In this paper, an agent-based modeling framework is used to establish a simulation platform for simulating collective cell migration. The goal of the platform is to build a biomimetic environment to demonstrate the importance of stimuli between the leading and following cells.
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Affiliation(s)
- Hanxu Hou
- School of Electrical Engineering & Intelligentization, Dongguan University of Technology, No.1 University Road, DongGuan, 523808 China
| | - Tian Gan
- College of Intelligence and Computing, TianJin University, No.135 Yaguan Road, TianJin, 300350 China
| | - Yaodong Yang
- College of Intelligence and Computing, TianJin University, No.135 Yaguan Road, TianJin, 300350 China
| | - Xianglei Zhu
- Automotive Data Center, CATARC, No.69 Xianfeng Road, TianJin, 300300 China
| | - Sen Liu
- Automotive Data Center, CATARC, No.69 Xianfeng Road, TianJin, 300300 China
| | - Weiming Guo
- Automotive Data Center, CATARC, No.69 Xianfeng Road, TianJin, 300300 China
| | - Jianye Hao
- School of Electrical Engineering & Intelligentization, Dongguan University of Technology, No.1 University Road, DongGuan, 523808 China
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Barriga EH, Mayor R. Adjustable viscoelasticity allows for efficient collective cell migration. Semin Cell Dev Biol 2019; 93:55-68. [PMID: 29859995 PMCID: PMC6854469 DOI: 10.1016/j.semcdb.2018.05.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 12/22/2022]
Abstract
Cell migration is essential for a wide range of biological processes such as embryo morphogenesis, wound healing, regeneration, and also in pathological conditions, such as cancer. In such contexts, cells are required to migrate as individual entities or as highly coordinated collectives, both of which requiring cells to respond to molecular and mechanical cues from their environment. However, whilst the function of chemical cues in cell migration is comparatively well understood, the role of tissue mechanics on cell migration is just starting to be studied. Recent studies suggest that the dynamic tuning of the viscoelasticity within a migratory cluster of cells, and the adequate elastic properties of its surrounding tissues, are essential to allow efficient collective cell migration in vivo. In this review we focus on the role of viscoelasticity in the control of collective cell migration in various cellular systems, mentioning briefly some aspects of single cell migration. We aim to provide details on how viscoelasticity of collectively migrating groups of cells and their surroundings is adjusted to ensure correct morphogenesis, wound healing, and metastasis. Finally, we attempt to show that environmental viscoelasticity triggers molecular changes within migrating clusters and that these new molecular setups modify clusters' viscoelasticity, ultimately allowing them to migrate across the challenging geometries of their microenvironment.
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Affiliation(s)
- Elias H Barriga
- Department of Cell and Developmental Biology, University College London, WC1E 6BT, London, UK
| | - Roberto Mayor
- Department of Cell and Developmental Biology, University College London, WC1E 6BT, London, UK.
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80
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Rousselle P, Braye F, Dayan G. Re-epithelialization of adult skin wounds: Cellular mechanisms and therapeutic strategies. Adv Drug Deliv Rev 2019; 146:344-365. [PMID: 29981800 DOI: 10.1016/j.addr.2018.06.019] [Citation(s) in RCA: 248] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/28/2018] [Accepted: 06/25/2018] [Indexed: 12/21/2022]
Abstract
Cutaneous wound healing in adult mammals is a complex multi-step process involving overlapping stages of blood clot formation, inflammation, re-epithelialization, granulation tissue formation, neovascularization, and remodelling. Re-epithelialization describes the resurfacing of a wound with new epithelium. The cellular and molecular processes involved in the initiation, maintenance, and completion of epithelialization are essential for successful wound closure. A variety of modulators are involved, including growth factors, cytokines, matrix metalloproteinases, cellular receptors, and extracellular matrix components. Here, we focus on cellular mechanisms underlying keratinocyte migration and proliferation during epidermal closure. Inability to re-epithelialize is a clear indicator of chronic non-healing wounds, which fail to proceed through the normal phases of wound healing in an orderly and timely manner. This review summarizes the current knowledge regarding the management and treatment of acute and chronic wounds, with a focus on re-epithelialization, offering some insights into novel future therapies.
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81
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Spatarelu CP, Zhang H, Trung Nguyen D, Han X, Liu R, Guo Q, Notbohm J, Fan J, Liu L, Chen Z. Biomechanics of Collective Cell Migration in Cancer Progression: Experimental and Computational Methods. ACS Biomater Sci Eng 2019; 5:3766-3787. [PMID: 32953985 PMCID: PMC7500334 DOI: 10.1021/acsbiomaterials.8b01428] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cell migration is essential for regulating many biological processes in physiological or pathological conditions, including embryonic development and cancer invasion. In vitro and in silico studies suggest that collective cell migration is associated with some biomechanical particularities such as restructuring of extracellular matrix (ECM), stress and force distribution profiles, and reorganization of the cytoskeleton. Therefore, the phenomenon could be understood by an in-depth study of cells' behavior determinants, including but not limited to mechanical cues from the environment and from fellow "travelers". This review article aims to cover the recent development of experimental and computational methods for studying the biomechanics of collective cell migration during cancer progression and invasion. We also summarized the tested hypotheses regarding the mechanism underlying collective cell migration enabled by these methods. Together, the paper enables a broad overview on the methods and tools currently available to unravel the biophysical mechanisms pertinent to cell collective migration as well as providing perspectives on future development toward eventually deciphering the key mechanisms behind the most lethal feature of cancer.
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Affiliation(s)
| | - Hao Zhang
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Dung Trung Nguyen
- Department of Engineering and Computer Science, Seattle Pacific University, Seattle, Washington 98119,
United States
| | - Xinyue Han
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Ruchuan Liu
- College of Physics, Chongqing University, Chongqing 400032, China
| | - Qiaohang Guo
- School of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350014,
China
| | - Jacob Notbohm
- Department of Engineering Physics, University of Wisconsin—Madison, Madison, Wisconsin 53706,
United States
| | - Jing Fan
- Department of Mechanical Engineering, City College of City University of New York, New York 10031, United
States
| | - Liyu Liu
- College of Physics, Chongqing University, Chongqing 400032, China
| | - Zi Chen
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
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82
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Paatela E, Munson D, Kikyo N. Circadian Regulation in Tissue Regeneration. Int J Mol Sci 2019; 20:ijms20092263. [PMID: 31071906 PMCID: PMC6539890 DOI: 10.3390/ijms20092263] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 04/29/2019] [Accepted: 05/03/2019] [Indexed: 12/22/2022] Open
Abstract
Circadian rhythms regulate over 40% of protein-coding genes in at least one organ in the body through mechanisms tied to the central circadian clock and to cell-intrinsic auto-regulatory feedback loops. Distinct diurnal differences in regulation of regeneration have been found in several organs, including skin, intestinal, and hematopoietic systems. Each regenerating system contains a complex network of cell types with different circadian mechanisms contributing to regeneration. In this review, we elucidate circadian regeneration mechanisms in the three representative systems. We also suggest circadian regulation of global translational activity as an understudied global regulator of regenerative capacity. A more detailed understanding of the molecular mechanisms underlying circadian regulation of tissue regeneration would accelerate the development of new regenerative therapies.
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Affiliation(s)
- Ellen Paatela
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA.
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Dane Munson
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Nobuaki Kikyo
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA.
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA.
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83
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Ritch SJ, Brandhagen BN, Goyeneche AA, Telleria CM. Advanced assessment of migration and invasion of cancer cells in response to mifepristone therapy using double fluorescence cytochemical labeling. BMC Cancer 2019; 19:376. [PMID: 31014286 PMCID: PMC6480622 DOI: 10.1186/s12885-019-5587-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 04/05/2019] [Indexed: 01/30/2023] Open
Abstract
Background Previous work in our laboratory demonstrated that antiprogestin mifepristone impairs the growth and adhesion of highly metastatic cancer cells, and causes changes in their cellular morphology. In this study, we further assess the anti-metastatic properties of mifepristone, by studying whether cytostatic doses of the drug can inhibit the migration and invasion of various cancer cell lines using a double fluorescence cytochemical labeling approach. Methods Cell lines representing cancers of the ovary (SKOV-3), breast (MDA-MB-231), glia (U87MG), or prostate (LNCaP) were treated with cytostatic concentrations of mifepristone. Wound healing and Boyden chamber assays were utilized to study cellular migration. To study cellular invasion, the Boyden chamber assay was prepared by adding a layer of extracellular matrix over the polycarbonate membrane. We enhanced the assays with the addition of double fluorescence cytochemical staining for fibrillar actin (F-actin) and DNA to observe the patterns of cytoskeletal distribution and nuclear positioning while cells migrate and invade. Results When exposed to cytostatic concentrations of mifepristone, all cancer cells lines demonstrated a decrease in both migration and invasion capacities measured using standard approaches. Double fluorescence cytochemical labeling validated that mifepristone-treated cancer cells exhibit reduced migration and invasion, and allowed to unveil a distinct migration pattern among the different cell lines, different arrays of nuclear localization during migration, and apparent redistribution of F-actin to the nucleus. Conclusion This study reports that antiprogestin mifepristone inhibits migration and invasion of highly metastatic cancer cell lines, and that double fluorescence cytochemical labeling increases the value of well-known approaches to study cell movement. Electronic supplementary material The online version of this article (10.1186/s12885-019-5587-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sabrina J Ritch
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine, McGill University, 3775 University Street, Montreal, Qc, H3A 2B4, Canada
| | - BreeAnn N Brandhagen
- Present address: Research Acceleration Office, 2001 Campus Delivery, University Services Center, Colorado State University, Fort Collins, CO, 80523, USA
| | - Alicia A Goyeneche
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine, McGill University, 3775 University Street, Montreal, Qc, H3A 2B4, Canada
| | - Carlos M Telleria
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine, McGill University, 3775 University Street, Montreal, Qc, H3A 2B4, Canada.
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84
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Evje S, Waldeland JO. How Tumor Cells Can Make Use of Interstitial Fluid Flow in a Strategy for Metastasis. Cell Mol Bioeng 2019; 12:227-254. [PMID: 31719912 DOI: 10.1007/s12195-019-00569-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/19/2019] [Indexed: 12/18/2022] Open
Abstract
Introduction The phenomenon of lymph node metastasis has been known for a long time. However, the underlying mechanism by which malignant tumor cells are able to break loose from the primary tumor site remains unclear. In particular, two competing fluid sensitive migration mechanisms have been reported in the experimental literature: (i) autologous chemotaxis (Shields et al. in Cancer Cell 11:526-538, 2007) which gives rise to downstream migration; (ii) an integrin-mediated and strain-induced upstream mechanism (Polacheck et al. in PNAS 108:11115-11120, 2011). How can these two competing mechanisms be used as a means for metastatic behavior in a realistic tumor setting? Excessive fluid flow is typically produced from leaky intratumoral blood vessels and collected by lymphatics in the peritumoral region giving rise to a heterogeneous fluid velocity field and a corresponding heterogeneous cell migration behavior, quite different from the experimental setup. Method In order to shed light on this issue there is a need for tools which allow one to extrapolate the observed single cell behavior in a homogeneous microfluidic environment to a more realistic, higher-dimensional tumor setting. Here we explore this issue by using a computational multiphase model. The model has been trained with data from the experimental results mentioned above which essentially reflect one-dimensional behavior. We extend the model to an envisioned idealized two-dimensional tumor setting. Result A main observation from the simulation is that the autologous chemotaxis migration mechanism, which triggers tumor cells to go with the flow in the direction of lymphatics, becomes much more aggressive and effective as a means for metastasis in the presence of realistic IF flow. This is because the outwardly directed IF flow generates upstream cell migration that possibly empowers small clusters of tumor cells to break loose from the primary tumor periphery. Without this upstream stress-mediated migration, autologous chemotaxis is inclined to move cells at the rim of the tumor in a homogeneous and collective, but space-demanding style. In contrast, inclusion of realistic IF flow generates upstream migration that allows two different aspects to be synthesized: maintain the coherency and solidity of the the primary tumor and at the same time cleave the outgoing waves of tumor cells into small clusters at the front that can move collectively in a more specific direction.
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Affiliation(s)
- Steinar Evje
- Department of Energy and Petroleum, University of Stavanger, 4068 Stavanger, Norway
| | - Jahn Otto Waldeland
- Department of Energy and Petroleum, University of Stavanger, 4068 Stavanger, Norway
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85
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Zañudo JGT, Guinn MT, Farquhar K, Szenk M, Steinway SN, Balázsi G, Albert R. Towards control of cellular decision-making networks in the epithelial-to-mesenchymal transition. Phys Biol 2019; 16:031002. [PMID: 30654341 PMCID: PMC6405305 DOI: 10.1088/1478-3975/aaffa1] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We present the epithelial-to-mesenchymal transition (EMT) from two perspectives: experimental/technological and theoretical. We review the state of the current understanding of the regulatory networks that underlie EMT in three physiological contexts: embryonic development, wound healing, and metastasis. We describe the existing experimental systems and manipulations used to better understand the molecular participants and factors that influence EMT and metastasis. We review the mathematical models of the regulatory networks involved in EMT, with a particular emphasis on the network motifs (such as coupled feedback loops) that can generate intermediate hybrid states between the epithelial and mesenchymal states. Ultimately, the understanding gained about these networks should be translated into methods to control phenotypic outcomes, especially in the context of cancer therapeutic strategies. We present emerging theories of how to drive the dynamics of a network toward a desired dynamical attractor (e.g. an epithelial cell state) and emerging synthetic biology technologies to monitor and control the state of cells.
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Affiliation(s)
- Jorge Gómez Tejeda Zañudo
- Department of Physics, Pennsylvania State University, University Park, PA 16802, USA
- Department of Medical Oncology, Dana-Farber Cancer Center, Boston, MA 02215, USA
- Cancer Program, Eli and Edythe L. Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - M. Tyler Guinn
- Biomedical Engineering Department, Stony Brook University, Stony Brook, NY 11794 USA
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, NY 11794, USA
- Stony Brook Medical Scientist Training Program, 101 Nicolls Road, Stony Brook, NY 11794, USA
| | - Kevin Farquhar
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, NY 11794, USA
| | - Mariola Szenk
- Biomedical Engineering Department, Stony Brook University, Stony Brook, NY 11794 USA
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, NY 11794, USA
| | - Steven N. Steinway
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Gábor Balázsi
- Biomedical Engineering Department, Stony Brook University, Stony Brook, NY 11794 USA
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, NY 11794, USA
| | - Réka Albert
- Department of Physics, Pennsylvania State University, University Park, PA 16802, USA
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
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86
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Samanta HS, Thirumalai D. Origin of superdiffusive behavior in a class of nonequilibrium systems. Phys Rev E 2019; 99:032401. [PMID: 30999548 DOI: 10.1103/physreve.99.032401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Indexed: 06/09/2023]
Abstract
Experiments and simulations have established that dynamics in a class of living and abiotic systems that are far from equilibrium exhibit superdiffusive behavior at long times, which in some cases (for example, an evolving tumor) is preceded by slow glass-like dynamics. By using the evolution of a collection of tumor cells, driven by mechanical forces and subject to cell birth and apoptosis, as a case study we show theoretically that on short timescales the mean-square displacement is subdiffusive due to jamming, whereas at long times it is superdiffusive. The results obtained by using a stochastic quantization method, which is needed because of the absence of the fluctuation-dissipation theorem, show that the superdiffusive behavior is universal and impervious to the nature of cell-cell interactions. Surprisingly, the theory also quantitatively accounts for the nontrivial dynamics observed in simulations of a model soap foam characterized by creation and destruction of spherical bubbles, which suggests that the two nonequilibrium systems belong to the same universality class. The theoretical prediction for the superdiffusion exponent is in excellent agreement with simulations for collective motion of tumor cells and dynamics associated with soap bubbles.
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Affiliation(s)
- Himadri S Samanta
- Department of Chemistry, University of Texas at Austin, Texas 78712, USA
| | - D Thirumalai
- Department of Chemistry, University of Texas at Austin, Texas 78712, USA
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Aoki T, Nishita M, Sonoda J, Ikeda T, Kakeji Y, Minami Y. Intraflagellar transport 20 promotes collective cancer cell invasion by regulating polarized organization of Golgi-associated microtubules. Cancer Sci 2019; 110:1306-1316. [PMID: 30742741 PMCID: PMC6447847 DOI: 10.1111/cas.13970] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/27/2019] [Accepted: 02/07/2019] [Indexed: 12/14/2022] Open
Abstract
Collective invasion is an important strategy of cancers of epithelial origin, including colorectal cancer (CRC), to infiltrate efficiently into local tissues as collective cell groups. Within the groups, cells at the invasive front, called leader cells, are highly polarized and motile, thereby providing the migratory traction that guides the follower cells. However, its underlying mechanisms remain unclear. We have previously shown that signaling emanating from the receptor tyrosine kinase Ror2 can promote invasion of human osteosarcoma cells and that intraflagellar transport 20 (IFT20) mediates its signaling to regulate Golgi structure and transport. Herein, we investigated the role of Ror2 and IFT20 in collective invasion of CRC cells, where Ror2 expression is either silenced or nonsilenced. We show by cell biological analyses that IFT20 promotes collective invasion of CRC cells, irrespective of expression and function of Ror2. Intraflagellar transport 20 is required for organization of Golgi‐associated, stabilized microtubules, oriented toward the direction of invasion in leader cells. Our results also indicate that IFT20 promotes reorientation of the Golgi apparatus toward the front side of leader cells. Live cell imaging of the microtubule plus‐end binding protein EB1 revealed that IFT20 is required for continuous polarized microtubule growth in leader cells. These results indicate that IFT20 plays an important role in collective invasion of CRC cells by regulating organization of Golgi‐associated, stabilized microtubules and Golgi polarity in leader cells.
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Affiliation(s)
- Tomoaki Aoki
- Division of Cell Physiology, Department of Physiology and Cell biology, Graduate School of Medicine, Kobe University, Kobe, Japan.,Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Michiru Nishita
- Division of Cell Physiology, Department of Physiology and Cell biology, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Junya Sonoda
- Division of Cell Physiology, Department of Physiology and Cell biology, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Taro Ikeda
- Division of Cell Physiology, Department of Physiology and Cell biology, Graduate School of Medicine, Kobe University, Kobe, Japan.,Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yoshihiro Kakeji
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yasuhiro Minami
- Division of Cell Physiology, Department of Physiology and Cell biology, Graduate School of Medicine, Kobe University, Kobe, Japan
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88
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Even I, Reidenbach S, Schlechter T, Berns N, Herold R, Roth W, Krunic D, Riechmann V, Hofmann I. DLIC
1
, but not
DLIC
2
, is upregulated in colon cancer and this contributes to proliferative overgrowth and migratory characteristics of cancer cells. FEBS J 2019; 286:803-820. [DOI: 10.1111/febs.14755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 10/25/2018] [Accepted: 01/14/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Ipek Even
- Division of Vascular Oncology and Metastasis German Cancer Research Center DKFZ‐ZMBH Alliance Heidelberg Germany
- Department of Vascular Biology and Tumor Angiogenesis (CBTM) Medical Faculty Mannheim Heidelberg University Mannheim Germany
| | - Sonja Reidenbach
- Division of Vascular Oncology and Metastasis German Cancer Research Center DKFZ‐ZMBH Alliance Heidelberg Germany
| | - Tanja Schlechter
- Division of Vascular Oncology and Metastasis German Cancer Research Center DKFZ‐ZMBH Alliance Heidelberg Germany
| | - Nicola Berns
- Department for Cell and Molecular Biology Medical Faculty Mannheim Heidelberg University Mannheim Germany
| | - Rosanna Herold
- Division of Vascular Oncology and Metastasis German Cancer Research Center DKFZ‐ZMBH Alliance Heidelberg Germany
| | - Wilfried Roth
- Clinical Cooperation Unit Molecular Tumor Pathology German Cancer Research Center Heidelberg Germany
| | - Damir Krunic
- Light Microscopy Facility German Cancer Research Center (DKFZ) Heidelberg Germany
| | - Veit Riechmann
- Department for Cell and Molecular Biology Medical Faculty Mannheim Heidelberg University Mannheim Germany
| | - Ilse Hofmann
- Division of Vascular Oncology and Metastasis German Cancer Research Center DKFZ‐ZMBH Alliance Heidelberg Germany
- Department of Vascular Biology and Tumor Angiogenesis (CBTM) Medical Faculty Mannheim Heidelberg University Mannheim Germany
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89
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Marom A, Berkovitch Y, Toume S, Alvarez-Elizondo MB, Weihs D. Non-damaging stretching combined with sodium pyruvate supplement accelerate migration of fibroblasts and myoblasts during gap closure. Clin Biomech (Bristol, Avon) 2019; 62:96-103. [PMID: 30711737 DOI: 10.1016/j.clinbiomech.2019.01.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 01/09/2019] [Accepted: 01/27/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Sustained, low- and mid-level (3-6%), radial stretching combined with varying concentrations of sodium pyruvate (NaPy) supplement increase the migration rate during microscale gap closure following an in vitro injury; NaPy is a physiological supplement often used in cell-culture media. Recently we showed that low-level tensile strains accelerate in vitro kinematics during en masse cell migration; topically applied mechanical deformations also accelerate in vivo healing in larger wounds. The constituents and nutrients at injury sites change. Thus, we combine a supplement with stretching conditions to effectively accelerate wound healing. METHODS Monolayers of murine fibroblasts (NIH3T3) or myoblasts (C2C12) were cultured in 1 mM NaPy on stretchable, linear-elastic substrates. Monolayers were subjected to 0, 3, or 6% stretching using a custom three-dimensionally printed stretching apparatus, micro-damage was immediately induced, media was replaced with fresh media containing 0, 1, or 5 mM NaPy, and cell migration kinematics during gap-closure were quantitatively evaluated. FINDINGS In myoblasts, the smallest evaluated strain (3%, minimal risk of damage) combined with preinjury (1 mM) and post-injury exogenous NaPy supplements accelerated gap closure in a statistically significant manner; response was NaPy concentration dependent. In both fibroblasts and myoblasts, when cells were pre-exposed to NaPy, yet no supplement was provided post-injury, mid-level stretches (6%) compensated for post-injury deficiency in exogenous NaPy and accelerated gap-closure in a statistically significant manner. INTERPRETATION Small deformations combined with NaPy supplement prior-to and following cell-damage accelerate en masse cell migration and can be applied in wound healing, e.g. to preventatively accelerate closure of microscale gaps.
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Affiliation(s)
- Anat Marom
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Yulia Berkovitch
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Samer Toume
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | | | - Daphne Weihs
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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90
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Abstract
Noncoding RNAs (ncRNAs) play critical roles in essential cell fate decisions. However, the exact molecular mechanisms underlying ncRNA-mediated bistable switches remain elusive and controversial. In recent years, systematic mathematical and quantitative experimental analyses have made significant contributions on elucidating the molecular mechanisms of controlling ncRNA-mediated cell fate decision processes. In this chapter, we review and summarize the general framework of mathematical modeling of ncRNA in a pedagogical way and the application of this general framework on real biological processes. We discuss the emerging properties resulting from the reciprocal regulation between mRNA, miRNA, and competing endogenous mRNA (ceRNA), as well as the role of mathematical modeling of ncRNA in synthetic biology. Both the positive feedback loops between ncRNAs and transcription factors and the emerging properties from the miRNA-mRNA reciprocal regulation enable bistable switches to direct cell fate decision.
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91
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TGF-β Signaling and the Epithelial-Mesenchymal Transition during Palatal Fusion. Int J Mol Sci 2018; 19:ijms19113638. [PMID: 30463190 PMCID: PMC6274911 DOI: 10.3390/ijms19113638] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/27/2018] [Accepted: 11/12/2018] [Indexed: 12/15/2022] Open
Abstract
Signaling by transforming growth factor (TGF)-β plays an important role in development, including in palatogenesis. The dynamic morphological process of palatal fusion occurs to achieve separation of the nasal and oral cavities. Critically and specifically important in palatal fusion are the medial edge epithelial (MEE) cells, which are initially present at the palatal midline seam and over the course of the palate fusion process are lost from the seam, due to cell migration, epithelial-mesenchymal transition (EMT), and/or programed cell death. In order to define the role of TGF-β signaling during this process, several approaches have been utilized, including a small interfering RNA (siRNA) strategy targeting TGF-β receptors in an organ culture context, the use of genetically engineered mice, such as Wnt1-cre/R26R double transgenic mice, and a cell fate tracing through utilization of cell lineage markers. These approaches have permitted investigators to distinguish some specific traits of well-defined cell populations throughout the palatogenic events. In this paper, we summarize the current understanding on the role of TGF-β signaling, and specifically its association with MEE cell fate during palatal fusion. TGF-β is highly regulated both temporally and spatially, with TGF-β3 and Smad2 being the preferentially expressed signaling molecules in the critical cells of the fusion processes. Interestingly, the accessory receptor, TGF-β type 3 receptor, is also critical for palatal fusion, with evidence for its significance provided by Cre-lox systems and siRNA approaches. This suggests the high demand of ligand for this fine-tuned signaling process. We discuss the new insights in the fate of MEE cells in the midline epithelial seam (MES) during the palate fusion process, with a particular focus on the role of TGF-β signaling.
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92
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Oraiopoulou ME, Tzamali E, Tzedakis G, Liapis E, Zacharakis G, Vakis A, Papamatheakis J, Sakkalis V. Integrating in vitro experiments with in silico approaches for Glioblastoma invasion: the role of cell-to-cell adhesion heterogeneity. Sci Rep 2018; 8:16200. [PMID: 30385804 PMCID: PMC6212459 DOI: 10.1038/s41598-018-34521-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/01/2018] [Indexed: 01/08/2023] Open
Abstract
Glioblastoma cells adopt migration strategies to invade into the brain parenchyma ranging from individual to collective mechanisms, whose role and dynamics are not yet fully understood. In this work, we explore Glioblastoma heterogeneity and recapitulate its invasive patterns both in vitro, by utilizing primary cells along with the U87MG cell line, and in silico, by adopting discrete, individual cell-based mathematics. Glioblastoma cells are cultured three-dimensionally in an ECM-like substrate. The primary Glioblastoma spheroids adopt a novel cohesive pattern, mimicking perivascular invasion in the brain, while the U87MG adopt a typical, starburst invasive pattern under the same experimental setup. Mathematically, we focus on the role of the intrinsic heterogeneity with respect to cell-to-cell adhesion. Our proposed mathematical approach mimics the invasive morphologies observed in vitro and predicts the dynamics of tumour expansion. The role of the proliferation and migration is also explored showing that their effect on tumour morphology is different per cell type. The proposed model suggests that allowing cell-to-cell adhesive heterogeneity within the tumour population is sufficient for variable invasive morphologies to emerge which remain originally undetectable by conventional imaging, indicating that exploration in pathological samples is needed to improve our understanding and reveal potential patient-specific therapeutic targets.
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Affiliation(s)
- M-E Oraiopoulou
- Department of Medicine, University of Crete, Heraklion, Crete, Greece
- Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - E Tzamali
- Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - G Tzedakis
- Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - E Liapis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - G Zacharakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - A Vakis
- Department of Medicine, University of Crete, Heraklion, Crete, Greece
- Neurosurgery Clinic, University General Hospital of Heraklion, Crete, Greece
| | - J Papamatheakis
- Gene Expression Laboratory, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
- Department of Biology, University of Crete, Heraklion, Crete, Greece
| | - V Sakkalis
- Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece.
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93
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Berdeu A, Laperrousaz B, Bordy T, Mandula O, Morales S, Gidrol X, Picollet-D'hahan N, Allier C. Lens-free microscopy for 3D + time acquisitions of 3D cell culture. Sci Rep 2018; 8:16135. [PMID: 30382136 PMCID: PMC6208343 DOI: 10.1038/s41598-018-34253-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 10/01/2018] [Indexed: 01/23/2023] Open
Abstract
Thanks to a novel three-dimensional imaging platform based on lens-free microscopy, it is possible to perform multi-angle acquisitions and holographic reconstructions of 3D cell cultures directly into the incubator. Being able of reconstructing volumes as large as ~5 mm3 over a period of time covering several days, allows us to observe a broad range of migration strategies only present in 3D environment, whether it is single cell migration, collective migrations of cells and dispersal of cells. In addition we are able to distinguish new interesting phenomena, e.g. large-scale cell-to-matrix interactions (>1 mm), fusion of cell clusters into large aggregate (~10,000 µm2) and conversely, total dissociation of cell clusters into clumps of migrating cells. This work on a novel 3D + time lens-free microscopy technique thus expands the repertoire of phenomena that can be studied within 3D cell cultures.
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Affiliation(s)
- Anthony Berdeu
- Université Grenoble Alpes, Grenoble, F-38000, France
- Commissariat à l'énergie atomique et aux énergies alternatives, Laboratoire d'électronique et de technologie de l'information, Grenoble, F-38054, France
| | - Bastien Laperrousaz
- Université Grenoble Alpes, Grenoble, F-38000, France
- Commissariat à l'énergie atomique et aux énergies alternatives, Biologie à Grande Echelle, Grenoble, F-38054, France
- Institut national de la santé et de la recherche médicale, U1038, Grenoble, F-38054, France
| | - Thomas Bordy
- Université Grenoble Alpes, Grenoble, F-38000, France
- Commissariat à l'énergie atomique et aux énergies alternatives, Laboratoire d'électronique et de technologie de l'information, Grenoble, F-38054, France
| | - Ondrej Mandula
- Université Grenoble Alpes, Grenoble, F-38000, France
- Commissariat à l'énergie atomique et aux énergies alternatives, Laboratoire d'électronique et de technologie de l'information, Grenoble, F-38054, France
| | - Sophie Morales
- Université Grenoble Alpes, Grenoble, F-38000, France
- Commissariat à l'énergie atomique et aux énergies alternatives, Laboratoire d'électronique et de technologie de l'information, Grenoble, F-38054, France
| | - Xavier Gidrol
- Université Grenoble Alpes, Grenoble, F-38000, France
- Commissariat à l'énergie atomique et aux énergies alternatives, Biologie à Grande Echelle, Grenoble, F-38054, France
- Institut national de la santé et de la recherche médicale, U1038, Grenoble, F-38054, France
| | - Nathalie Picollet-D'hahan
- Université Grenoble Alpes, Grenoble, F-38000, France.
- Commissariat à l'énergie atomique et aux énergies alternatives, Biologie à Grande Echelle, Grenoble, F-38054, France.
- Institut national de la santé et de la recherche médicale, U1038, Grenoble, F-38054, France.
| | - Cédric Allier
- Université Grenoble Alpes, Grenoble, F-38000, France.
- Commissariat à l'énergie atomique et aux énergies alternatives, Laboratoire d'électronique et de technologie de l'information, Grenoble, F-38054, France.
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94
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Ayuso JM, Gillette A, Lugo-Cintrón K, Acevedo-Acevedo S, Gomez I, Morgan M, Heaster T, Wisinski KB, Palecek SP, Skala MC, Beebe DJ. Organotypic microfluidic breast cancer model reveals starvation-induced spatial-temporal metabolic adaptations. EBioMedicine 2018; 37:144-157. [PMID: 30482722 PMCID: PMC6284542 DOI: 10.1016/j.ebiom.2018.10.046] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Ductal carcinoma in situ (DCIS) is the earliest stage of breast cancer. During DCIS, tumor cells remain inside the mammary duct, growing under a microenvironment characterized by hypoxia, nutrient starvation, and waste product accumulation; this harsh microenvironment promotes genomic instability and eventually cell invasion. However, there is a lack of biomarkers to predict what patients will transition to a more invasive tumor or how DCIS cells manage to survive in this harsh microenvironment. METHODS In this work, we have developed a microfluidic model that recapitulates the DCIS microenvironment. In the microdevice, a DCIS model cell line was grown inside a luminal mammary duct model, embedded in a 3D hydrogel with mammary fibroblasts. Cell behavior was monitored by confocal microscopy and optical metabolic imaging. Additionally, metabolite profile was studied by NMR whereas gene expression was analyzed by RT-qPCR. FINDINGS DCIS cell metabolism led to hypoxia and nutrient starvation; revealing an altered metabolism focused on glycolysis and other hypoxia-associated pathways. In response to this starvation and hypoxia, DCIS cells modified the expression of multiple genes, and a gradient of different metabolic phenotypes was observed across the mammary duct model. These genetic changes observed in the model were in good agreement with patient genomic profiles; identifying multiple compounds targeting the affected pathways. In this context, the hypoxia-activated prodrug tirapazamine selectively destroyed hypoxic DCIS cells. INTERPRETATION The results showed the capacity of the microfluidic model to mimic the DCIS structure, identifying multiple cellular adaptations to endure the hypoxia and nutrient starvation generated within the mammary duct. These findings may suggest new potential therapeutic directions to treat DCIS. In summary, given the lack of in vitro models to study DCIS, this microfluidic device holds great potential to find new DCIS predictors and therapies and translate them to the clinic.
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Affiliation(s)
- Jose M Ayuso
- Morgridge Institute for Research, 330 N Orchard street, Madison, WI, USA; Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; The University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI, USA.
| | - Amani Gillette
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA
| | - Karina Lugo-Cintrón
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA
| | | | - Ismael Gomez
- Allergy research group, IdISSC. San Carlos Clinic Hospital, Madrid, Spain; Materials department, Carlos III University. Leganes, Spain
| | - Molly Morgan
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA
| | - Tiffany Heaster
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA
| | - Kari B Wisinski
- The University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI, USA
| | - Sean P Palecek
- The University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI, USA; Department of Chemical and Biological Engineering, University of Wisconsin, Madison, USA
| | - Melissa C Skala
- Morgridge Institute for Research, 330 N Orchard street, Madison, WI, USA; Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; The University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI, USA
| | - David J Beebe
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA; The University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI, USA; Department of Pathology & Laboratory Medicine, University of Wisconsin, MAdison, WI,USA.
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95
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Mayr C, Beyreis M, Dobias H, Gaisberger M, Fuchs J, Pichler M, Ritter M, Jakab M, Helm K, Neureiter D, Kiesslich T. Continuous, label-free, 96-well-based determination of cell migration using confluence measurement. Cell Adh Migr 2018; 13:76-82. [PMID: 30295122 PMCID: PMC6527382 DOI: 10.1080/19336918.2018.1526612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cellular migration is essential in diverse physiological and pathophysiological processes. Here, we present a protocol for quantitative analysis of migration using confluence detection allowing continuous, non-endpoint measurement with minimal hands-on time under cell incubator conditions. Applicability was tested using substances which enhance (EGF) or inhibit (cytochalasin D, ouabain) migration. Using a gap-closure assay we demonstrate that automated confluence detection monitors cellular migration in the 96-well microplate format. Quantification by % confluence, % cell free-area or % confluence in cell-free area against time, allows detailed analysis of cellular migration. The study describes a practicable approach for continuous, non-endpoint measurement of migration in 96-well microplates and for detailed data analysis, which allows for medium/high-throughput analysis of cellular migration in vitro.
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Affiliation(s)
- Christian Mayr
- a Institute of Physiology and Pathophysiology, Laboratory for Tumour Biology and Experimental Therapies (TREAT) , Paracelsus Medical University Salzburg , Salzburg , Austria.,b Department of Internal Medicine I , Paracelsus Medical University/Salzburger Landeskliniken (SALK) , Salzburg , Austria
| | - Marlena Beyreis
- a Institute of Physiology and Pathophysiology, Laboratory for Tumour Biology and Experimental Therapies (TREAT) , Paracelsus Medical University Salzburg , Salzburg , Austria.,c Institute of Physiology and Pathophysiology, Laboratory of Functional and Molecular Membrane Physiology (FMMP) , Paracelsus Medical University Salzburg , Salzburg , Austria
| | - Heidemarie Dobias
- d Gastein Research Institute, Institute of Physiology and Pathophysiology , Paracelsus Medical University Salzburg , Salzburg , Austria
| | - Martin Gaisberger
- d Gastein Research Institute, Institute of Physiology and Pathophysiology , Paracelsus Medical University Salzburg , Salzburg , Austria.,e Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Institute of Physiology and Pathophysiology , Paracelsus Medical University Salzburg , Salzburg , Austria
| | - Julia Fuchs
- d Gastein Research Institute, Institute of Physiology and Pathophysiology , Paracelsus Medical University Salzburg , Salzburg , Austria
| | - Martin Pichler
- f Division of Oncology, Department of Internal Medicine , Medical University Graz , Graz , Austria.,g Department of Experimental Therapeutics , The UT MD Anderson Cancer Center , Houston / TX , USA
| | - Markus Ritter
- a Institute of Physiology and Pathophysiology, Laboratory for Tumour Biology and Experimental Therapies (TREAT) , Paracelsus Medical University Salzburg , Salzburg , Austria.,c Institute of Physiology and Pathophysiology, Laboratory of Functional and Molecular Membrane Physiology (FMMP) , Paracelsus Medical University Salzburg , Salzburg , Austria.,d Gastein Research Institute, Institute of Physiology and Pathophysiology , Paracelsus Medical University Salzburg , Salzburg , Austria.,e Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Institute of Physiology and Pathophysiology , Paracelsus Medical University Salzburg , Salzburg , Austria
| | - Martin Jakab
- c Institute of Physiology and Pathophysiology, Laboratory of Functional and Molecular Membrane Physiology (FMMP) , Paracelsus Medical University Salzburg , Salzburg , Austria
| | - Katharina Helm
- a Institute of Physiology and Pathophysiology, Laboratory for Tumour Biology and Experimental Therapies (TREAT) , Paracelsus Medical University Salzburg , Salzburg , Austria.,c Institute of Physiology and Pathophysiology, Laboratory of Functional and Molecular Membrane Physiology (FMMP) , Paracelsus Medical University Salzburg , Salzburg , Austria.,h Institute of Pathology , Paracelsus Medical University/Salzburger Landeskliniken (SALK) , Salzburg , Austria
| | - Daniel Neureiter
- h Institute of Pathology , Paracelsus Medical University/Salzburger Landeskliniken (SALK) , Salzburg , Austria.,i Cancer Cluster Salzburg , Salzburg , Austria
| | - Tobias Kiesslich
- a Institute of Physiology and Pathophysiology, Laboratory for Tumour Biology and Experimental Therapies (TREAT) , Paracelsus Medical University Salzburg , Salzburg , Austria.,b Department of Internal Medicine I , Paracelsus Medical University/Salzburger Landeskliniken (SALK) , Salzburg , Austria
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96
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Wu Y, Ali MRK, Dong B, Han T, Chen K, Chen J, Tang Y, Fang N, Wang F, El-Sayed MA. Gold Nanorod Photothermal Therapy Alters Cell Junctions and Actin Network in Inhibiting Cancer Cell Collective Migration. ACS NANO 2018; 12:9279-9290. [PMID: 30118603 PMCID: PMC6156989 DOI: 10.1021/acsnano.8b04128] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Most cancer-related deaths come from metastasis. It was recently discovered that nanoparticles could inhibit cancer cell migration. Whereas most researchers focus on single-cell migration, the effect of nanoparticle treatment on collective cell migration has not been explored. Collective migration occurs commonly in many types of cancer metastasis, where a group of cancer cells move together, which requires the contractility of the cytoskeleton filaments and the connection of neighboring cells by the cell junction proteins. Here, we demonstrate that gold nanorods (AuNRs) and the introduction of near-infrared light could inhibit the cancer cell collective migration by altering the actin filaments and cell junctions with significantly triggered phosphorylation changes of essential proteins, using mass spectrometry-based phosphoproteomics. Further observation using super-resolution stochastic optical reconstruction microscopy (STORM) showed the actin cytoskeleton filament bundles were disturbed, which is difficult to differentiate under a normal fluorescence microscope. The decreased expression level of N-cadherin junctions and morphological changes of tight junction protein zonula occludens 2 were also observed. All of these results indicate possible functions of the AuNR treatments in regulating and remodeling the actin filaments and cell junction proteins, which contribute to decreasing cancer cell collective migration.
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Affiliation(s)
- Yue Wu
- Laser Dynamics Lab, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA
| | - Moustafa R. K. Ali
- Laser Dynamics Lab, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA
| | - Bin Dong
- Department of Chemistry, Georgia State University, P.O. Box 3965, Atlanta, Georgia 30302
| | - Tiegang Han
- Laser Dynamics Lab, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA
| | - Kuangcai Chen
- Department of Chemistry, Georgia State University, P.O. Box 3965, Atlanta, Georgia 30302
| | - Jin Chen
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, Liaoning, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Tang
- Department of Medicine, Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Ning Fang
- Department of Chemistry, Georgia State University, P.O. Box 3965, Atlanta, Georgia 30302
- Corresponding Author: Ning Fang, , Fangjun Wang, , Mostafa A. El-Sayed,
| | - Fangjun Wang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, Liaoning, P. R. China
- Corresponding Author: Ning Fang, , Fangjun Wang, , Mostafa A. El-Sayed,
| | - Mostafa A. El-Sayed
- Laser Dynamics Lab, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA
- Corresponding Author: Ning Fang, , Fangjun Wang, , Mostafa A. El-Sayed,
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Vang Mouritzen M, Jenssen H. Optimized Scratch Assay for In Vitro Testing of Cell Migration with an Automated Optical Camera. J Vis Exp 2018. [PMID: 30148500 DOI: 10.3791/57691] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Cell migration is an important process that influences many aspects of health, such as wound healing and cancer, and it is, therefore, crucial for developing methods to study the migration. The scratch assay has long been the most common in vitro method to test compounds with anti- and pro-migration properties because of its low cost and simple procedure. However, an often-reported problem of the assay is the accumulation of cells across the edge of the scratch. Furthermore, to obtain data from the assay, images of different exposures must be taken over a period of time at the exact same spot to compare the movements of the migration. Different analysis programs can be used to describe the scratch closure, but they are labor intensive, inaccurate, and forces cycles of temperature changes. In this study, we demonstrate an optimized method for testing the migration effect, e.g. with the naturally occurring proteins Human- and Bovine-Lactoferrin and their N-terminal peptide Lactoferricin on the epithelial cell line HaCaT. A crucial optimization is to wash and scratch in PBS, which eliminates the aforementioned accumulation of cells along the edge. This could be explained by the removal of cations, which have been shown to have an effect on keratinocyte cell-cell connection. To ensure true detection of migration, pre-treating with mitomycin C, a DNA synthesis inhibitor, was added to the protocol. Finally, we demonstrate the automated optical camera, which eliminates excessive temperature cycles, manual labor with scratch closure analysis, while improving on reproducibility and ensuring analysis of identical sections of the scratch over time.
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Affiliation(s)
| | - Håvard Jenssen
- Department of Science and Environment, Roskilde University;
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98
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Chen HY, Hsiao YT, Liu SC, Hsu T, Woon WY, I L. Enhancing Cancer Cell Collective Motion and Speeding up Confluent Endothelial Dynamics through Cancer Cell Invasion and Aggregation. PHYSICAL REVIEW LETTERS 2018; 121:018101. [PMID: 30028147 DOI: 10.1103/physrevlett.121.018101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 04/03/2018] [Indexed: 06/08/2023]
Abstract
We report the experimental observation of speeded-up collective motion of the monolayer endothelia-cancer mixture on a collagen-coated substrate, after the invasion of a small fraction of motile cancer cells into the confluent endothelial monolayer, through disrupting cell-cell junctions. It is found that, with an increasing waiting time, the cancer-free confluent endothelial monolayer exhibits a dynamical slowing-down of liquidlike micromotion with a gradually decreasing degree of superdiffusion. After invasion, cancer cells aggregate and exhibit turbulentlike cooperative motion, which is enhanced with the increasing size of gradually aggregated cancer clusters, confined by the fluctuating boundaries of surrounding endothelial cells. It, in turn, enhances the surrounding endothelial cell motion and speeds up the originally slowed-down motion.
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Affiliation(s)
- Hsiang-Ying Chen
- Department of Physics and Center for Complex Systems, National Central University, Jhongli, Taiwan 32001, Republic of China
| | - Yi-Teng Hsiao
- Department of Physics and Center for Complex Systems, National Central University, Jhongli, Taiwan 32001, Republic of China
| | - Shu-Chen Liu
- Department of Biomedical Sciences and Engineering, National Central University, Jhongli, Taiwan 32001, Republic of China
| | - Tien Hsu
- Department of Biomedical Sciences and Engineering, National Central University, Jhongli, Taiwan 32001, Republic of China
| | - Wei-Yen Woon
- Department of Physics and Center for Complex Systems, National Central University, Jhongli, Taiwan 32001, Republic of China
| | - Lin I
- Department of Physics and Center for Complex Systems, National Central University, Jhongli, Taiwan 32001, Republic of China
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99
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Miyazaki M, Aoki M, Okado Y, Koga K, Hamasaki M, Kiyomi F, Sakata T, Nakagawa T, Nabeshima K. Poorly Differentiated Clusters Predict a Poor Prognosis for External Auditory Canal Carcinoma. Head Neck Pathol 2018; 13:198-207. [PMID: 29846906 PMCID: PMC6513932 DOI: 10.1007/s12105-018-0939-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 05/24/2018] [Indexed: 01/23/2023]
Abstract
Squamous cell carcinoma (SCC) of the external auditory canal (EAC) is rare and offers a poor prognosis; more accurate prognostic biomarkers are required. Our laboratory recently demonstrated that tumor budding, characterized by tumor cell clusters (< 5 cells), and laminin 5-γ2 staining of SCC of the EAC are associated with shorter survival. However, clusters composed of ≥ 5 tumor cells are also found in the stroma. Previous reports of colorectal cancer suggest that poorly differentiated clusters (PDCs) are a negative prognostic indicator. Here, we report on the association between PDCs and prognosis in SCC of the EAC. PDCs and tumor budding were histopathologically and immunohistochemically (cytokeratin AE1/AE3) analyzed in 31 cases of pre-treatment biopsy SCC of the EAC. Clusters in the stroma composed of < or ≥ 5 cancer cells were defined as tumor budding or PDCs, respectively. Entire tumors were initially scanned to identify greatest PDC density. Tumors with low or high PDC density were classified as low- and high-grade, respectively. Patients with high-grade PDCs had a significantly poorer outcome than those with low-grade. Even in cases of low-grade tumor budding, those with high-grade PDCs had a poor prognosis. Multivariate analysis results indicated that high-grade PDCs were associated with poor prognosis. PDC grade can provide a more accurate prognosis than tumor budding in SCC of the EAC.
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Affiliation(s)
- Masaru Miyazaki
- Department of Pathology, Fukuoka University Hospital and School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 Japan ,Department of Otorhinolaryngology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Mikiko Aoki
- Department of Pathology, Fukuoka University Hospital and School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 Japan
| | - Yasuko Okado
- Department of Pathology, Fukuoka University Hospital and School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 Japan ,Department of Otorhinolaryngology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Kaori Koga
- Department of Pathology, Fukuoka University Hospital and School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 Japan
| | - Makoto Hamasaki
- Department of Pathology, Fukuoka University Hospital and School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 Japan
| | - Fumiaki Kiyomi
- Academia, Industry and Government Collaborative Research Institute of Translational Medicine for Life Innovation, Fukuoka University, Fukuoka, Japan
| | - Toshifumi Sakata
- Department of Otorhinolaryngology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Takashi Nakagawa
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuki Nabeshima
- Department of Pathology, Fukuoka University Hospital and School of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 Japan
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100
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Chepizhko O, Lionetti MC, Malinverno C, Giampietro C, Scita G, Zapperi S, La Porta CAM. From jamming to collective cell migration through a boundary induced transition. SOFT MATTER 2018; 14:3774-3782. [PMID: 29713711 DOI: 10.1039/c8sm00128f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Cell monolayers provide an interesting example of active matter, exhibiting a phase transition from flowing to jammed states as they age. Here we report experiments and numerical simulations illustrating how a jammed cellular layer rapidly reverts to a flowing state after a wound. Quantitative comparison between experiments and simulations shows that cells change their self-propulsion and alignment strength so that the system crosses a phase transition line, which we characterize by finite-size scaling in an active particle model. This wound-induced unjamming transition is found to occur generically in epithelial, endothelial and cancer cells.
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Affiliation(s)
- Oleksandr Chepizhko
- Institut für Theoretische Physik, Leopold-Franzens-Universität Innsbruck, Technikerstrasse 21a, A-6020 Innsbruck, Austria
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