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Northcott JM, Dean IS, Mouw JK, Weaver VM. Feeling Stress: The Mechanics of Cancer Progression and Aggression. Front Cell Dev Biol 2018. [PMID: 29541636 PMCID: PMC5835517 DOI: 10.3389/fcell.2018.00017] [Citation(s) in RCA: 243] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The tumor microenvironment is a dynamic landscape in which the physical and mechanical properties evolve dramatically throughout cancer progression. These changes are driven by enhanced tumor cell contractility and expansion of the growing tumor mass, as well as through alterations to the material properties of the surrounding extracellular matrix (ECM). Consequently, tumor cells are exposed to a number of different mechanical inputs including cell–cell and cell-ECM tension, compression stress, interstitial fluid pressure and shear stress. Oncogenes engage signaling pathways that are activated in response to mechanical stress, thereby reworking the cell's intrinsic response to exogenous mechanical stimuli, enhancing intracellular tension via elevated actomyosin contraction, and influencing ECM stiffness and tissue morphology. In addition to altering their intracellular tension and remodeling the microenvironment, cells actively respond to these mechanical perturbations phenotypically through modification of gene expression. Herein, we present a description of the physical changes that promote tumor progression and aggression, discuss their interrelationship and highlight emerging therapeutic strategies to alleviate the mechanical stresses driving cancer to malignancy.
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Affiliation(s)
- Josette M Northcott
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States
| | - Ivory S Dean
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States
| | - Janna K Mouw
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States
| | - Valerie M Weaver
- Department of Surgery, Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, United States.,Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, United States.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, United States.,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, United States.,UCSF Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, United States
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Abstract
Understanding the mechanical behavior of human brain is critical to interpret the role of physical stimuli in both normal and pathological processes that occur in CNS tissue, such as development, inflammation, neurodegeneration, aging, and most common brain tumors. Despite clear evidence that mechanical cues influence both normal and transformed brain tissue activity as well as normal and transformed brain cell behavior, little is known about the links between mechanical signals and their biochemical and medical consequences. A multi-level approach from whole organ rheology to single cell mechanics is needed to understand the physical aspects of human brain function and its pathologies. This review summarizes the latest achievements in the field.
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Affiliation(s)
- Katarzyna Pogoda
- Department of Physiology, University of Pennsylvania, Philadelphia, PA, United States.,Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
| | - Paul A Janmey
- Department of Physiology, University of Pennsylvania, Philadelphia, PA, United States
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53
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Liu YC, Lee IC, Chen PY. Biomimetic brain tumor niche regulates glioblastoma cells towards a cancer stem cell phenotype. J Neurooncol 2018; 137:511-522. [DOI: 10.1007/s11060-018-2763-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 01/13/2018] [Indexed: 01/06/2023]
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54
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Role of Microenvironment in Glioma Invasion: What We Learned from In Vitro Models. Int J Mol Sci 2018; 19:ijms19010147. [PMID: 29300332 PMCID: PMC5796096 DOI: 10.3390/ijms19010147] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/30/2017] [Accepted: 12/31/2017] [Indexed: 12/21/2022] Open
Abstract
The invasion properties of glioblastoma hamper a radical surgery and are responsible for its recurrence. Understanding the invasion mechanisms is thus critical to devise new therapeutic strategies. Therefore, the creation of in vitro models that enable these mechanisms to be studied represents a crucial step. Since in vitro models represent an over-simplification of the in vivo system, in these years it has been attempted to increase the level of complexity of in vitro assays to create models that could better mimic the behaviour of the cells in vivo. These levels of complexity involved: 1. The dimension of the system, moving from two-dimensional to three-dimensional models; 2. The use of microfluidic systems; 3. The use of mixed cultures of tumour cells and cells of the tumour micro-environment in order to mimic the complex cross-talk between tumour cells and their micro-environment; 4. And the source of cells used in an attempt to move from commercial lines to patient-based models. In this review, we will summarize the evidence obtained exploring these different levels of complexity and highlighting advantages and limitations of each system used.
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55
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Heffernan JM, McNamara JB, Borwege S, Vernon BL, Sanai N, Mehta S, Sirianni RW. PNIPAAm-co-Jeffamine ® (PNJ) scaffolds as in vitro models for niche enrichment of glioblastoma stem-like cells. Biomaterials 2017; 143:149-158. [PMID: 28802102 PMCID: PMC5605153 DOI: 10.1016/j.biomaterials.2017.05.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/28/2017] [Accepted: 05/03/2017] [Indexed: 02/06/2023]
Abstract
Glioblastoma (GBM) is the most common adult primary brain tumor, and the 5-year survival rate is less than 5%. GBM malignancy is driven in part by a population of GBM stem-like cells (GSCs) that exhibit indefinite self-renewal capacity, multipotent differentiation, expression of neural stem cell markers, and resistance to conventional treatments. GSCs are enriched in specialized niche microenvironments that regulate stem phenotypes and support GSC radioresistance. Therefore, identifying GSC-niche interactions that regulate stem phenotypes may present a unique target for disrupting the maintenance and persistence of this treatment resistant population. In this work, we engineered 3D scaffolds from temperature responsive poly(N-isopropylacrylamide-co-Jeffamine M-1000® acrylamide), or PNJ copolymers, as a platform for enriching stem-specific phenotypes in two molecularly distinct human patient-derived GSC cell lines. Notably, we observed that, compared to conventional neurosphere cultures, PNJ cultured GSCs maintained multipotency and exhibited enhanced self-renewal capacity. Concurrent increases in expression of proteins known to regulate self-renewal, invasion, and stem maintenance in GSCs (NESTIN, EGFR, CD44) suggest that PNJ scaffolds effectively enrich the GSC population. We further observed that PNJ cultured GSCs exhibited increased resistance to radiation treatment compared to GSCs cultured in standard neurosphere conditions. GSC radioresistance is supported in vivo by niche microenvironments, and this remains a significant barrier to effectively treating these highly tumorigenic cells. Taken in sum, these data indicate that the microenvironment created by synthetic PNJ scaffolds models niche enrichment of GSCs in patient-derived GBM cell lines, and presents tissue engineering opportunities for studying clinically important behaviors such as radioresistance in vitro.
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Affiliation(s)
- John M Heffernan
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Ave, Phoenix, AZ, 85013, USA; School of Biological and Health Systems Engineering, Arizona State University, PO Box 879709, Tempe, AZ, 85287, USA
| | - James B McNamara
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Ave, Phoenix, AZ, 85013, USA; Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, AZ, 85721, USA
| | - Sabine Borwege
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Ave, Phoenix, AZ, 85013, USA
| | - Brent L Vernon
- School of Biological and Health Systems Engineering, Arizona State University, PO Box 879709, Tempe, AZ, 85287, USA
| | - Nader Sanai
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Ave, Phoenix, AZ, 85013, USA
| | - Shwetal Mehta
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Ave, Phoenix, AZ, 85013, USA
| | - Rachael W Sirianni
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Ave, Phoenix, AZ, 85013, USA; School of Biological and Health Systems Engineering, Arizona State University, PO Box 879709, Tempe, AZ, 85287, USA.
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56
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Pogoda K, Bucki R, Byfield FJ, Cruz K, Lee T, Marcinkiewicz C, Janmey PA. Soft Substrates Containing Hyaluronan Mimic the Effects of Increased Stiffness on Morphology, Motility, and Proliferation of Glioma Cells. Biomacromolecules 2017; 18:3040-3051. [PMID: 28858529 DOI: 10.1021/acs.biomac.7b00324] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Unlike many other cancer cells that grow in tumors characterized by an abnormally stiff collagen-enriched stroma, glioma cells proliferate and migrate in the much softer environment of the brain, which generally lacks the filamentous protein matrix characteristic of breast, liver, colorectal, and other types of cancer. Glial cell-derived tumors and the cells derived from them are highly heterogeneous and variable in their mechanical properties, their response to treatments, and their properties in vitro. Some glioma samples are stiffer than normal brain when measured ex vivo, but even those that are soft in vitro stiffen after deformation by pressure gradients that arise in the tumor environment in vivo. Such mechanical differences can strongly alter the phenotype of cultured glioma cells. Alternatively, chemical signaling might elicit the same phenotype as increased stiffness by activating intracellular messengers common to both initial stimuli. In this study the responses of three different human glioma cell lines to changes in substrate stiffness are compared with their responses on very soft substrates composed of a combination of hyaluronic acid and a specific integrin ligand, either laminin or collagen I. By quantifying cell morphology, stiffness, motility, proliferation, and secretion of the cytokine IL-8, glioma cell responses to increased stiffness are shown to be nearly identically elicited by substrates containing hyaluronic acid, even in the absence of increased stiffness. PI3-kinase activity was required for the response to hyaluronan but not to stiffness. This outcome suggests that hyaluronic acid can trigger the same cellular response, as can be obtained by mechanical force transduced from a stiff environment, and demonstrates that chemical and mechanical features of the tumor microenvironment can achieve equivalent reactions in cancer cells.
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Affiliation(s)
- Katarzyna Pogoda
- Institute for Medicine and Engineering, University of Pennsylvania , 3340 Smith Walk, Philadelphia, Pennsylvania 19104, United States.,Institute of Nuclear Physics Polish Academy of Sciences , PL-31342 Krakow, Poland
| | - Robert Bucki
- Institute for Medicine and Engineering, University of Pennsylvania , 3340 Smith Walk, Philadelphia, Pennsylvania 19104, United States.,Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok , 15-222 Bialystok, Poland
| | - Fitzroy J Byfield
- Institute for Medicine and Engineering, University of Pennsylvania , 3340 Smith Walk, Philadelphia, Pennsylvania 19104, United States
| | - Katrina Cruz
- Institute for Medicine and Engineering, University of Pennsylvania , 3340 Smith Walk, Philadelphia, Pennsylvania 19104, United States
| | - Tongkeun Lee
- Institute for Medicine and Engineering, University of Pennsylvania , 3340 Smith Walk, Philadelphia, Pennsylvania 19104, United States
| | - Cezary Marcinkiewicz
- CoE Department of Bioengineering, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - Paul A Janmey
- Institute for Medicine and Engineering, University of Pennsylvania , 3340 Smith Walk, Philadelphia, Pennsylvania 19104, United States.,Department of Physiology, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
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57
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Gilabert-Oriol R, Furness SGB, Stringer BW, Weng A, Fuchs H, Day BW, Kourakis A, Boyd AW, Hare DL, Thakur M, Johns TG, Wookey PJ. Dianthin-30 or gelonin versus monomethyl auristatin E, each configured with an anti-calcitonin receptor antibody, are differentially potent in vitro in high-grade glioma cell lines derived from glioblastoma. Cancer Immunol Immunother 2017; 66:1217-1228. [PMID: 28501939 PMCID: PMC11029669 DOI: 10.1007/s00262-017-2013-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 05/06/2017] [Indexed: 11/27/2022]
Abstract
We have reported that calcitonin receptor (CTR) is widely expressed in biopsies from the lethal brain tumour glioblastoma by malignant glioma and brain tumour-initiating cells (glioma stem cells) using anti-human CTR antibodies. A monoclonal antibody against an epitope within the extracellular domain of CTR was raised (mAb2C4) and chemically conjugated to either plant ribosome-inactivating proteins (RIPs) dianthin-30 or gelonin, or the drug monomethyl auristatin E (MMAE), and purified. In the high-grade glioma cell line (HGG, representing glioma stem cells) SB2b, in the presence of the triterpene glycoside SO1861, the EC50 for mAb2C4:dianthin was 10.0 pM and for mAb2C4:MMAE [antibody drug conjugate (ADC)] 2.5 nM, 250-fold less potent. With the cell line U87MG, in the presence of SO1861, the EC50 for mAb2C4:dianthin was 20 pM, mAb2C4:gelonin, 20 pM, compared to the ADC (6.3 nM), which is >300 less potent. Several other HGG cell lines that express CTR were tested and the efficacies of mAb2C4:RIP (dianthin or gelonin) were similar. Co-administration of the enhancer SO1861 purified from plants enhances lysosomal escape. Enhancement with SO1861 increased potency of the immunotoxin (>3 log values) compared to the ADC (1 log). The uptake of antibody was demonstrated with the fluorescent conjugate mAb2C4:Alexa Fluor 568, and the release of dianthin-30:Alexa Fluor488 into the cytosol following addition of SO1861 supports our model. These data demonstrate that the immunotoxins are highly potent and that CTR is an effective target expressed by a large proportion of HGG cell lines representative of glioma stem cells and isolated from individual patients.
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Affiliation(s)
- Roger Gilabert-Oriol
- Department of Medicine/Cardiology (Austin Health, Heidelberg), University of Melbourne, Lance Townsend Building, Level 10, Austin Campus, Studley Road, Heidelberg, VIC, 3084, Australia
- Department of Experimental Therapeutics, BC Cancer Research Centre, 675 W 10th Ave, Vancouver, BC, V5Z IL3, Canada
| | - Sebastian G B Furness
- Drug Discovery Biology Laboratory, Monash Institute of Pharmaceutical Sciences and Department of Pharmacology, Monash University (Parkville), Parkville, VIC, Australia
| | - Brett W Stringer
- QIMR-Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Alexander Weng
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Institute of Pharmacy, Königin-Luise-Str. 2+4, 14195, Berlin, Germany
| | - Hendrik Fuchs
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Bryan W Day
- QIMR-Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Angela Kourakis
- Department of Medicine/Cardiology (Austin Health, Heidelberg), University of Melbourne, Lance Townsend Building, Level 10, Austin Campus, Studley Road, Heidelberg, VIC, 3084, Australia
| | - Andrew W Boyd
- QIMR-Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - David L Hare
- Department of Medicine/Cardiology (Austin Health, Heidelberg), University of Melbourne, Lance Townsend Building, Level 10, Austin Campus, Studley Road, Heidelberg, VIC, 3084, Australia
| | - Mayank Thakur
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Terrance G Johns
- Hudson Institute of Medical Research, Monash University (Clayton), Clayton, VIC, Australia
| | - Peter J Wookey
- Department of Medicine/Cardiology (Austin Health, Heidelberg), University of Melbourne, Lance Townsend Building, Level 10, Austin Campus, Studley Road, Heidelberg, VIC, 3084, Australia.
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58
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Sivakumar H, Strowd R, Skardal A. Exploration of Dynamic Elastic Modulus Changes on Glioblastoma Cell Populations with Aberrant EGFR Expression as a Potential Therapeutic Intervention Using a Tunable Hyaluronic Acid Hydrogel Platform. Gels 2017; 3:gels3030028. [PMID: 30920523 PMCID: PMC6318698 DOI: 10.3390/gels3030028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/21/2017] [Accepted: 07/07/2017] [Indexed: 01/07/2023] Open
Abstract
Glioblastoma (GBM) is one of most aggressive forms of brain cancer, with a median survival time of 14.6 months following diagnosis. This low survival rate could in part be attributed to the lack of model systems of this type of cancer that faithfully recapitulate the tumor architecture and microenvironment seen in vivo in humans. Therapeutic studies would provide results that could be translated to the clinic efficiently. Here, we assess the role of the tumor microenvironment physical parameters on the tumor, and its potential use as a biomarker using a hyaluronic acid hydrogel system capable of elastic modulus tuning and dynamic elastic moduli changes. Experiments were conducted to assess the sensitivity of glioblastoma cell populations with different mutations to varying elastic moduli. Cells with aberrant epithelial growth factor receptor (EGFR) expression have a predilection for a stiffer environment, sensing these parameters through focal adhesion kinase (FAK). Importantly, the inhibition of FAK or EGFR generally resulted in reversed elastic modulus preference. Lastly, we explore the concept of therapeutically targeting the elastic modulus and dynamically reducing it via chemical or enzymatic degradation, both showing the capability to reduce or stunt proliferation rates of these GBM populations.
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Affiliation(s)
- Hemamylammal Sivakumar
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
| | - Roy Strowd
- Department of Neurology, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
- Comprehensive Cancer Center at Wake Forest Baptist, Wake Forest Baptist Health Sciences, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
| | - Aleksander Skardal
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
- Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
- Comprehensive Cancer Center at Wake Forest Baptist, Wake Forest Baptist Health Sciences, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
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59
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Chen J, Kumar S. Biophysical Regulation of Cancer Stem/Initiating Cells: Implications for Disease Mechanisms and Translation. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2017; 1:87-95. [PMID: 29082354 DOI: 10.1016/j.cobme.2017.02.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cancer stem/initiating cells (CSCs) are a subset of tumor cells proposed to play privileged roles in seeding tumors and driving metastasis. CSCs have emerged as an increasingly important target of interest in cancer biology and therapy. Recent work has suggested that CSC maintenance and metastatic potential may be modulated by physical inputs within the tissue microenvironment, including interstitial pressure and extracellular matrix stiffness. Here we review recent progress in our understanding of CSC regulation by biophysical signals within the tumor microenvironment. While the mechanistic basis of this signaling remains incompletely understood, we discuss emerging evidence that mechanical inputs can epigenetically regulate CSC behavior and that some CSCs can evade mechanotransductive signals to more efficiently infiltrate tissue. We also describe efforts to leverage these findings to engineer culture platforms for the characterization of CSC mechanics for discovery and screening.
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Affiliation(s)
- Joseph Chen
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA 94720
| | - Sanjay Kumar
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA 94720
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60
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Integrating the glioblastoma microenvironment into engineered experimental models. Future Sci OA 2017; 3:FSO189. [PMID: 28883992 PMCID: PMC5583655 DOI: 10.4155/fsoa-2016-0094] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/22/2017] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GBM) is the most lethal cancer originating in the brain. Its high mortality rate has been attributed to therapeutic resistance and rapid, diffuse invasion - both of which are strongly influenced by the unique microenvironment. Thus, there is a need to develop new models that mimic individual microenvironmental features and are able to provide clinically relevant data. Current understanding of the effects of the microenvironment on GBM progression, established experimental models of GBM and recent developments using bioengineered microenvironments as ex vivo experimental platforms that mimic the biochemical and physical properties of GBM tumors are discussed.
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61
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Mennens SFB, van den Dries K, Cambi A. Role for Mechanotransduction in Macrophage and Dendritic Cell Immunobiology. Results Probl Cell Differ 2017; 62:209-242. [PMID: 28455711 DOI: 10.1007/978-3-319-54090-0_9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tissue homeostasis is not only controlled by biochemical signals but also through mechanical forces that act on cells. Yet, while it has long been known that biochemical signals have profound effects on cell biology, the importance of mechanical forces has only been recognized much more recently. The types of mechanical stress that cells experience include stretch, compression, and shear stress, which are mainly induced by the extracellular matrix, cell-cell contacts, and fluid flow. Importantly, macroscale tissue deformation through stretch or compression also affects cellular function.Immune cells such as macrophages and dendritic cells are present in almost all peripheral tissues, and monocytes populate the vasculature throughout the body. These cells are unique in the sense that they are subject to a large variety of different mechanical environments, and it is therefore not surprising that key immune effector functions are altered by mechanical stimuli. In this chapter, we describe the different types of mechanical signals that cells encounter within the body and review the current knowledge on the role of mechanical signals in regulating macrophage, monocyte, and dendritic cell function.
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Affiliation(s)
- Svenja F B Mennens
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, 6525 GA, Nijmegen, The Netherlands
| | - Koen van den Dries
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, 6525 GA, Nijmegen, The Netherlands
| | - Alessandra Cambi
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, 6525 GA, Nijmegen, The Netherlands.
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62
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Bradbury PM, Turner K, Mitchell C, Griffin KR, Middlemiss S, Lau L, Dagg R, Taran E, Cooper-White J, Fabry B, O’Neill GM. The focal adhesion targeting (FAT) domain of p130 Crk associated substrate (p130Cas) confers mechanosensing function. J Cell Sci 2017; 130:1263-1273. [DOI: 10.1242/jcs.192930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 02/02/2017] [Indexed: 11/20/2022] Open
Abstract
The Cas family of focal adhesion proteins contain a highly conserved C-terminal focal adhesion targeting (FAT) domain. To determine the role of the FAT domain we compared wildtype exogenous NEDD9 with a hybrid construct in which the NEDD9 FAT domain is exchanged for the p130Cas FAT domain. Fluorescence recovery after photobleaching (FRAP) revealed significantly slowed exchange of the fusion protein at focal adhesions and significantly slower 2D migration. No differences were detected in cell stiffness measured with Atomic Force Microscopy (AFM) and cell adhesion forces measured with a magnetic tweezer device. Thus the slowed migration was not due to changes in cell stiffness or adhesion strength. Analysis of cell migration on surfaces of increasing rigidity revealed a striking reduction of cell motility in cells expressing the p130Cas FAT domain. The p130Cas FAT domain induced rigidity-dependent tyrosine phosphorylation of the NEDD9 substrate domain. This in turn reduced post-translational cleavage of NEDD9 which we show inhibits NEDD9-induced migration. Collectively, our data therefore suggest that the p130Cas FAT domain uniquely confers mechanosensing function.
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Affiliation(s)
- Peta M. Bradbury
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
- Discipline of Paediatrics and Child Health, The University of Sydney, Sydney, 2000, New South Wales, Australia
| | - Kylie Turner
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
| | - Camilla Mitchell
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
| | - Kaitlyn R. Griffin
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
| | - Shiloh Middlemiss
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
| | - Loretta Lau
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
| | - Rebecca Dagg
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
| | - Elena Taran
- Australian National Fabrication Facility- Queensland node, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Queensland, Australia
| | - Justin Cooper-White
- Tissue Engineering and Microfluidics Laboratory, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Queensland, Australia
| | - Ben Fabry
- Department of Physics, University of Erlangen-Nuremberg, Germany
| | - Geraldine M. O’Neill
- Children’s Cancer Research Unit, Kids Research Institute, The Children’s Hospital at Westmead, Westmead, 2145, New South Wales, Australia
- Discipline of Paediatrics and Child Health, The University of Sydney, Sydney, 2000, New South Wales, Australia
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