1
|
So CL, Robitaille M, Sadras F, McCullough MH, Milevskiy MJG, Goodhill GJ, Roberts-Thomson SJ, Monteith GR. Cellular geometry and epithelial-mesenchymal plasticity intersect with PIEZO1 in breast cancer cells. Commun Biol 2024; 7:467. [PMID: 38632473 PMCID: PMC11024093 DOI: 10.1038/s42003-024-06163-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
Differences in shape can be a distinguishing feature between different cell types, but the shape of a cell can also be dynamic. Changes in cell shape are critical when cancer cells escape from the primary tumor and undergo major morphological changes that allow them to squeeze between endothelial cells, enter the vasculature, and metastasize to other areas of the body. A shift from rounded to spindly cellular geometry is a consequence of epithelial-mesenchymal plasticity, which is also associated with changes in gene expression, increased invasiveness, and therapeutic resistance. However, the consequences and functional impacts of cell shape changes and the mechanisms through which they occur are still poorly understood. Here, we demonstrate that altering the morphology of a cell produces a remodeling of calcium influx via the ion channel PIEZO1 and identify PIEZO1 as an inducer of features of epithelial-to-mesenchymal plasticity. Combining automated epifluorescence microscopy and a genetically encoded calcium indicator, we demonstrate that activation of the PIEZO1 force channel with the PIEZO1 agonist, YODA 1, induces features of epithelial-to-mesenchymal plasticity in breast cancer cells. These findings suggest that PIEZO1 is a critical point of convergence between shape-induced changes in cellular signaling and epithelial-mesenchymal plasticity in breast cancer cells.
Collapse
Affiliation(s)
- Choon Leng So
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Mélanie Robitaille
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Francisco Sadras
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Michael H McCullough
- Queensland Brain Institute and School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
- Eccles Institute of Neuroscience, John Curtin School of Medical Research, and School of Computing, ANU College of Engineering and Computer Science, The Australian National University, Canberra, ACT, 2600, Australia
| | - Michael J G Milevskiy
- ACRF Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, The University of Melbourne, Parkville, VIC, 2010, Australia
| | - Geoffrey J Goodhill
- Queensland Brain Institute and School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
- Departments of Developmental Biology and Neuroscience, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | | | - Gregory R Monteith
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia.
| |
Collapse
|
2
|
Abenza JF, Rossetti L, Mouelhi M, Burgués J, Andreu I, Kennedy K, Roca-Cusachs P, Marco S, García-Ojalvo J, Trepat X. Mechanical control of the mammalian circadian clock via YAP/TAZ and TEAD. J Cell Biol 2023; 222:e202209120. [PMID: 37378613 PMCID: PMC10308087 DOI: 10.1083/jcb.202209120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 04/13/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Autonomous circadian clocks exist in nearly every mammalian cell type. These cellular clocks are subjected to a multilayered regulation sensitive to the mechanochemical cell microenvironment. Whereas the biochemical signaling that controls the cellular circadian clock is increasingly well understood, mechanisms underlying regulation by mechanical cues are largely unknown. Here we show that the fibroblast circadian clock is mechanically regulated through YAP/TAZ nuclear levels. We use high-throughput analysis of single-cell circadian rhythms and apply controlled mechanical, biochemical, and genetic perturbations to study the expression of the clock gene Rev-erbα. We observe that Rev-erbα circadian oscillations are disrupted with YAP/TAZ nuclear translocation. By targeted mutations and overexpression of YAP/TAZ, we show that this mechanobiological regulation, which also impacts core components of the clock such as Bmal1 and Cry1, depends on the binding of YAP/TAZ to the transcriptional effector TEAD. This mechanism could explain the impairment of circadian rhythms observed when YAP/TAZ activity is upregulated, as in cancer and aging.
Collapse
Affiliation(s)
- Juan F. Abenza
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain
| | - Leone Rossetti
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
| | - Malèke Mouelhi
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
| | - Javier Burgués
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
| | - Ion Andreu
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
| | - Keith Kennedy
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Pere Roca-Cusachs
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
- Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain
| | - Santiago Marco
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
- Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Barcelona, Spain
| | - Jordi García-Ojalvo
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Xavier Trepat
- Institute for Bioengineering of Catalonia, The Barcelona Institute for Science and Technology, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain
- Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| |
Collapse
|
3
|
Li Y, Zhong Z, Xu C, Wu X, Li J, Tao W, Wang J, Du Y, Zhang S. 3D micropattern force triggers YAP nuclear entry by transport across nuclear pores and modulates stem cells paracrine. Natl Sci Rev 2023; 10:nwad165. [PMID: 37457331 PMCID: PMC10347367 DOI: 10.1093/nsr/nwad165] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/27/2023] [Accepted: 05/25/2023] [Indexed: 07/18/2023] Open
Abstract
Biophysical cues of the cellular microenvironment tremendously influence cell behavior by mechanotransduction. However, it is still unclear how cells sense and transduce the mechanical signals from 3D geometry to regulate cell function. Here, the mechanotransduction of human mesenchymal stem cells (MSCs) triggered by 3D micropatterns and its effect on the paracrine of MSCs are systematically investigated. Our findings show that 3D micropattern force could influence the spatial reorganization of the cytoskeleton, leading to different local forces which mediate nucleus alteration such as orientation, morphology, expression of Lamin A/C and chromatin condensation. Specifically, in the triangular prism and cuboid micropatterns, the ordered F-actin fibers are distributed over and fully transmit compressive forces to the nucleus, which results in nuclear flattening and stretching of nuclear pores, thus enhancing the nuclear import of YES-associated protein (YAP). Furthermore, the activation of YAP significantly enhances the paracrine of MSCs and upregulates the secretion of angiogenic growth factors. In contrast, the fewer compressive forces on the nucleus in cylinder and cube micropatterns cause less YAP entering the nucleus. The skin repair experiment provides the first in vivo evidence that enhanced MSCs paracrine by 3D geometry significantly promotes tissue regeneration. The current study contributes to understanding the in-depth mechanisms of mechanical signals affecting cell function and provides inspiration for innovative design of biomaterials.
Collapse
Affiliation(s)
| | | | - Cunjing Xu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Xiaodan Wu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Jiaqi Li
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Weiyong Tao
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Jianglin Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | | | | |
Collapse
|
4
|
Kretschmer M, Mamistvalov R, Sprinzak D, Vollmar AM, Zahler S. Matrix stiffness regulates Notch signaling activity in endothelial cells. J Cell Sci 2023; 136:286810. [PMID: 36718783 DOI: 10.1242/jcs.260442] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 12/22/2022] [Indexed: 02/01/2023] Open
Abstract
Notch signaling is critical for many developmental and disease-related processes. It is widely accepted that Notch has a mechanotransduction module that regulates receptor cleavage. However, the role of biomechanical properties of the cellular environment in Notch signaling in general is still poorly understood. During angiogenesis, differentiation of endothelial cells into tip and stalk cells is regulated by Notch signaling, and remodeling of the extracellular matrix occurs. We investigated the influence of substrate stiffness on the Notch signaling pathway in endothelial cells. Using stiffness-tuned polydimethylsiloxane (PDMS) substrates, we show that activity of the Notch signaling pathway inversely correlates with a physiologically relevant range of substrate stiffness (i.e. increased Notch signaling activity on softer substrates). Trans-endocytosis of the Notch extracellular domain, but not the overall endocytosis, is regulated by substrate stiffness, and integrin cell-matrix connections are both stiffness dependent and influenced by Notch signaling. We conclude that mechanotransduction of Notch activation is modulated by substrate stiffness, highlighting the role of substrate rigidity as an important cue for signaling. This might have implications in pathological situations associated with stiffening of the extracellular matrix, such as tumor growth.
Collapse
Affiliation(s)
- Maibritt Kretschmer
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Rose Mamistvalov
- The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - David Sprinzak
- The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Angelika M Vollmar
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Stefan Zahler
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 Munich, Germany
| |
Collapse
|
5
|
Kuchler O, Gerlach J, Vomhof T, Hettich J, Steinmetz J, Gebhardt JCM, Michaelis J, Knöll B. Single-molecule tracking (SMT) and localization of SRF and MRTF transcription factors during neuronal stimulation and differentiation. Open Biol 2022; 12:210383. [PMID: 35537478 PMCID: PMC9090491 DOI: 10.1098/rsob.210383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
In cells, proteins encoded by the same gene do not all behave uniformly but engage in functional subpopulations induced by spatial or temporal segregation. While conventional microscopy has limitations in revealing such spatial and temporal diversity, single-molecule tracking (SMT) microscopy circumvented this problem and allows for high-resolution imaging and quantification of dynamic single-molecule properties. Particularly in the nucleus, SMT has identified specific DNA residence times of transcription factors (TFs), DNA-bound TF fractions and positions of transcriptional hot-spots upon cell stimulation. By contrast to cell stimulation, SMT has not been employed to follow dynamic TF changes along stages of cell differentiation. Herein, we analysed the serum response factor (SRF), a TF involved in the differentiation of many cell types to study nuclear single-molecule dynamics in neuronal differentiation. Our data in living mouse hippocampal neurons show dynamic changes in SRF DNA residence time and SRF DNA-bound fraction between the stages of adhesion, neurite growth and neurite differentiation in axon and dendrites. Using TALM (tracking and localization microscopy), we identified nuclear positions of SRF clusters and observed changes in their numbers and size during differentiation. Furthermore, we show that the SRF cofactor MRTF-A (myocardin-related TF or MKL1) responds to cell activation by enhancing the long-bound DNA fraction. Finally, a first SMT colocalization study of two proteins was performed in living cells showing enhanced SRF/MRTF-A colocalization upon stimulation. In summary, SMT revealed modulation of dynamic TF properties during cell stimulation and differentiation.
Collapse
Affiliation(s)
- Oliver Kuchler
- Institute of Neurobiochemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany,Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Jule Gerlach
- Institute of Neurobiochemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany,Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Thomas Vomhof
- Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Johannes Hettich
- Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Julia Steinmetz
- Department of Statistics, TU Dortmund University, August-Schmidt Straße 1, 44227 Dortmund, Germany
| | | | - Jens Michaelis
- Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Bernd Knöll
- Institute of Neurobiochemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| |
Collapse
|
6
|
Janjic A, Wange LE, Bagnoli JW, Geuder J, Nguyen P, Richter D, Vieth B, Vick B, Jeremias I, Ziegenhain C, Hellmann I, Enard W. Prime-seq, efficient and powerful bulk RNA sequencing. Genome Biol 2022; 23:88. [PMID: 35361256 PMCID: PMC8969310 DOI: 10.1186/s13059-022-02660-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/23/2022] [Indexed: 12/21/2022] Open
Abstract
Cost-efficient library generation by early barcoding has been central in propelling single-cell RNA sequencing. Here, we optimize and validate prime-seq, an early barcoding bulk RNA-seq method. We show that it performs equivalently to TruSeq, a standard bulk RNA-seq method, but is fourfold more cost-efficient due to almost 50-fold cheaper library costs. We also validate a direct RNA isolation step, show that intronic reads are derived from RNA, and compare cost-efficiencies of available protocols. We conclude that prime-seq is currently one of the best options to set up an early barcoding bulk RNA-seq protocol from which many labs would profit.
Collapse
Affiliation(s)
- Aleksandar Janjic
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
- Graduate School of Systemic Neurosciences, Faculty of Biology, Ludwig-Maximilians University, Martinsried, Germany
| | - Lucas E Wange
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Johannes W Bagnoli
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Johanna Geuder
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Phong Nguyen
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Daniel Richter
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Beate Vieth
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Binje Vick
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Department of Pediatrics, Dr. von Hauner Children's Hospital, Ludwig-Maximilians University, Munich, Germany
| | - Christoph Ziegenhain
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Ines Hellmann
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany
| | - Wolfgang Enard
- Anthropology & Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Großhaderner Str. 2, 82152, Martinsried, Germany.
| |
Collapse
|
7
|
Tuvshindorj U, Trouillet V, Vasilevich A, Koch B, Vermeulen S, Carlier A, Alexander MR, Giselbrecht S, Truckenmüller R, de Boer J. The Galapagos Chip Platform for High-Throughput Screening of Cell Adhesive Chemical Micropatterns. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105704. [PMID: 34985808 DOI: 10.1002/smll.202105704] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/04/2021] [Indexed: 06/14/2023]
Abstract
In vivo cells reside in a complex extracellular matrix (ECM) that presents spatially distributed biochemical and -physical cues at the nano- to micrometer scales. Chemical micropatterning is successfully used to generate adhesive islands to control where and how cells attach and restore cues of the ECM in vitro. Although chemical micropatterning has become a powerful tool to study cell-material interactions, only a fraction of the possible micropattern designs was covered so far, leaving many other possible designs still unexplored. Here, a high-throughput screening platform called "Galapagos chip" is developed. It contains a library of 2176 distinct subcellular chemical patterns created using mathematical algorithms and a straightforward UV-induced two-step surface modification. This approach enables the immobilization of ligands in geometrically defined regions onto cell culture substrates. To validate the system, binary RGD/polyethylene glycol patterns are prepared on which human mesenchymal stem cells are cultured, and the authors observe how different patterns affect cell and organelle morphology. As proof of concept, the cells are stained for the mechanosensitive YAP protein, and, using a machine-learning algorithm, it is demonstrated that cell shape and YAP nuclear translocation correlate. It is concluded that the Galapagos chip is a versatile platform to screen geometrical aspects of cell-ECM interaction.
Collapse
Affiliation(s)
- Urandelger Tuvshindorj
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
- Department of Biomedical Engineering and Institute, for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Vanessa Trouillet
- Institute for Applied Materials and Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany
| | - Aliaksei Vasilevich
- Department of Biomedical Engineering and Institute, for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Britta Koch
- Advanced Materials and Healthcare Technologies Division, The School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Steven Vermeulen
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Aurélie Carlier
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Morgan R Alexander
- Advanced Materials and Healthcare Technologies Division, The School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Stefan Giselbrecht
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Roman Truckenmüller
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Jan de Boer
- Department of Biomedical Engineering and Institute, for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| |
Collapse
|
8
|
Mechanical Aspects of Angiogenesis. Cancers (Basel) 2021; 13:cancers13194987. [PMID: 34638470 PMCID: PMC8508205 DOI: 10.3390/cancers13194987] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/01/2021] [Accepted: 10/01/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary The formation of new blood vessels from already existing ones is a process of high clinical relevance, since it is of great importance for both physiological and pathological processes. In regard to tumors, the process is crucial, since it ensures the supply with nutrients and the growth of the tumor. The influence of mechanical factors on this biological process is an emerging field. Until now, the shear force of the blood flow has been considered the main mechanical parameter during angiogenesis. This review article provides an overview of further mechanical cues, with particular focus on the surrounding extracellular matrix impacting the cell behavior and, thus, regulating angiogenesis. This underlines the enormous importance of the mechanical properties of the extracellular matrix on cell biological processes and shows how changing the mechanics of the extracellular matrix could be used as a possible therapeutic approach in cancer therapy. Abstract Angiogenesis is of high clinical relevance as it plays a crucial role in physiological (e.g., tissue regeneration) and pathological processes (e.g., tumor growth). Besides chemical signals, such as VEGF, the relationship between cells and the extracellular matrix (ECM) can influence endothelial cell behavior during angiogenesis. Previously, in terms of the connection between angiogenesis and mechanical factors, researchers have focused on shear forces due to blood flow. However, it is becoming increasingly important to include the direct influence of the ECM on biological processes, such as angiogenesis. In this context, we focus on the stiffness of the surrounding ECM and the adhesion of cells to the ECM. Furthermore, we highlight the mechanical cues during the main stages of angiogenesis: cell migration, tip and stalk cells, and vessel stabilization. It becomes clear that the different stages of angiogenesis require various chemical and mechanical cues to be modulated by/modulate the stiffness of the ECM. Thus, changes of the ECM during tumor growth represent additional potential dysregulations of angiogenesis in addition to erroneous biochemical signals. This awareness could be the basis of therapeutic approaches to counteract specific processes in tumor angiogenesis.
Collapse
|
9
|
Zisis T, Schwarz J, Balles M, Kretschmer M, Nemethova M, Chait R, Hauschild R, Lange J, Guet C, Sixt M, Zahler S. Sequential and Switchable Patterning for Studying Cellular Processes under Spatiotemporal Control. ACS APPLIED MATERIALS & INTERFACES 2021; 13:35545-35560. [PMID: 34283577 PMCID: PMC9282641 DOI: 10.1021/acsami.1c09850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Attachment of adhesive molecules on cell culture surfaces to restrict cell adhesion to defined areas and shapes has been vital for the progress of in vitro research. In currently existing patterning methods, a combination of pattern properties such as stability, precision, specificity, high-throughput outcome, and spatiotemporal control is highly desirable but challenging to achieve. Here, we introduce a versatile and high-throughput covalent photoimmobilization technique, comprising a light-dose-dependent patterning step and a subsequent functionalization of the pattern via click chemistry. This two-step process is feasible on arbitrary surfaces and allows for generation of sustainable patterns and gradients. The method is validated in different biological systems by patterning adhesive ligands on cell-repellent surfaces, thereby constraining the growth and migration of cells to the designated areas. We then implement a sequential photopatterning approach by adding a second switchable patterning step, allowing for spatiotemporal control over two distinct surface patterns. As a proof of concept, we reconstruct the dynamics of the tip/stalk cell switch during angiogenesis. Our results show that the spatiotemporal control provided by our "sequential photopatterning" system is essential for mimicking dynamic biological processes and that our innovative approach has great potential for further applications in cell science.
Collapse
Affiliation(s)
- Themistoklis Zisis
- Department
of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University
Munich, Butenandtstraße 5, 81377 Munich, Germany
| | - Jan Schwarz
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
- ibidi
GmbH, Am Klopferspitz
19, 82152 Martinsried, Germany
| | - Miriam Balles
- ibidi
GmbH, Am Klopferspitz
19, 82152 Martinsried, Germany
| | - Maibritt Kretschmer
- Department
of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University
Munich, Butenandtstraße 5, 81377 Munich, Germany
| | - Maria Nemethova
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Remy Chait
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Robert Hauschild
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Janina Lange
- Faculty
of Physics and Center for NanoScience, Ludwig-Maximilians-University
Munich, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Calin Guet
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Michael Sixt
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Stefan Zahler
- Department
of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University
Munich, Butenandtstraße 5, 81377 Munich, Germany
| |
Collapse
|
10
|
Single cell morphological metrics and cytoskeletal alignment regulate VCAM-1 protein expression. Biochem Biophys Res Commun 2021; 555:160-167. [PMID: 33819746 DOI: 10.1016/j.bbrc.2021.03.129] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 03/23/2021] [Indexed: 11/22/2022]
Abstract
In the initial stages of atherosclerosis, vascular adhesion molecule-1 (VCAM-1) is a surface protein that mediates leukocyte adhesion to the endothelium's luminal surface. VCAM-1 expression is upregulated on endothelial cells (ECs) under pro-inflammatory conditions and is known to be modulated by fluid shear stress (FSS). High, pulsatile FSS induces endothelial elongation and cytoskeletal alignment and downregulates pro-inflammatory induced VCAM-1 expression, which is associated with an athero-protective EC phenotype. In contrast, athero-prone ECs under low, oscillatory FSS fail to elongate and maintain a cobblestone morphology with random cytoskeletal alignment, while VCAM-1 expression is upregulated. Whether EC shape and cytoskeletal alignment play a role in the regulation of VCAM-1 protein expression independent of FSS has not been previously determined. The goal of this study was to determine the effect of EC morphology, specifically cell elongation and alignment, and cytoskeletal alignment on VCAM-1 protein expression using topographical micropatterning of an endothelial monolayer and single cell image analysis techniques. Elongated ECs with an aligned cytoskeleton significantly downregulated VCAM-1 protein expression in the absence of FSS compared to planar controls. In addition, linear correlations between morphological metrics and protein expression showed that actin alignment had a significantly stronger effect on VCAM-1 expression than cell elongation. Functionally, monocytic U937 cells statically adhered less on micropatterns compared to planar substrates, in a VCAM-1 dependent manner. Therefore, endothelial cellular elongation and alignment as well as cytoskeletal alignment regulate VCAM-1 protein expression and immunogenic functions to produce a less inflammatory phenotype in the absence of hemodynamic effects.
Collapse
|
11
|
Illes B, Fuchs A, Gegenfurtner F, Ploetz E, Zahler S, Vollmar AM, Engelke H. Spatio-selective activation of nuclear translocation of YAP with light directs invasion of cancer cell spheroids. iScience 2021; 24:102185. [PMID: 33718837 PMCID: PMC7921841 DOI: 10.1016/j.isci.2021.102185] [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: 10/28/2020] [Revised: 01/14/2021] [Accepted: 02/09/2021] [Indexed: 01/09/2023] Open
Abstract
The mechanical properties of the extracellular matrix strongly influence tumor progression and invasion. Yes-associated protein (YAP) has been shown to be a key regulator of this process translating mechanical cues from the extracellular matrix into intracellular signals. Despite its apparent role in tumor progression and metastasis, it is not clear yet, whether YAP activation can actively trigger the onset of invasion. To address this question, we designed a photo-activatable YAP (optoYAP), which allows for spatiotemporal control of its activation. The activation mechanism of optoYAP is based on optically triggered nuclear translocation of the protein. Activation of optoYAP induces downstream signaling for several hours and leads to increased proliferation in two- and three-dimensional cultures. Applied to cancer spheroids, optoYAP activation induces invasion. Site-selective activation of optoYAP in cancer spheroids strikingly directs invasion into the activated direction. Thus, nuclear translocation of YAP may be enough to trigger the onset of invasion. Photoactivation of nuclear translocation of yes-associated protein (YAP) Photoactivation of YAP induces downstream signaling Site-selective activation of YAP triggers directed invasion of cancer spheroids
Collapse
Affiliation(s)
- Bernhard Illes
- Department of Chemistry and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Butenandtstraße 11, 81377 Munich, Germany
| | - Adrian Fuchs
- Department of Chemistry and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Butenandtstraße 11, 81377 Munich, Germany
| | - Florian Gegenfurtner
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5, 81377 Munich, Germany
| | - Evelyn Ploetz
- Department of Chemistry and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Butenandtstraße 11, 81377 Munich, Germany
| | - Stefan Zahler
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5, 81377 Munich, Germany
| | - Angelika M Vollmar
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5, 81377 Munich, Germany
| | - Hanna Engelke
- Department of Chemistry and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Butenandtstraße 11, 81377 Munich, Germany.,Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Humboldtstr. 46, 8010 Graz, Austria
| |
Collapse
|
12
|
Di Natale C, Natale CF, Florio D, Netti PA, Morelli G, Ventre M, Marasco D. Effects of surface nanopatterning on internalization and amyloid aggregation of the fragment 264-277 of Nucleophosmin 1. Colloids Surf B Biointerfaces 2020; 197:111439. [PMID: 33137636 DOI: 10.1016/j.colsurfb.2020.111439] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/06/2020] [Accepted: 10/20/2020] [Indexed: 12/17/2022]
Abstract
The mechanical interpretation of the plethora of factors that governs cellular localization of amyloid aggregates is crucial for planning novel therapeutical interventions in neurodegenerative diseases since these aggregates exert a primary role in the proteostasis machinery. The uptake of Cell Penetrating Peptides (CPPs) conjugated with different amyloid polypeptides occurs via different endocytic processes regulated by cytoskeleton organization and cell morphology. Herein, we deepened the internalization of an amyloid system in cells cultured on nanopatterned surfaces that represent a powerful tool to shape cell and regulate its contractility. We analyzed the behavior of an amyloid model system, employing NPM1264-277 sequence, covalently conjugated to Tat fragment 48-60 as CPP. To investigate its internalization mechanism, we followed the formation of aggregates on two kinds of substrates: a flat and a nanopatterned surface. Herein, investigations during time were carried out by employing both confocal and second harmonic generation (SHG) microscopies. We showed that modifications of cellular environment affect peptide localization, its cytoplasmic translocation and the size of amyloid aggregates.
Collapse
Affiliation(s)
- Concetta Di Natale
- Department of Pharmacy, University of Naples "Federico II", Italy; Center for Advanced Biomaterial for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy; Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Carlo F Natale
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Daniele Florio
- Department of Pharmacy, University of Naples "Federico II", Italy
| | - Paolo Antonio Netti
- Center for Advanced Biomaterial for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy; Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy; Department of Chemical, Materials and Industrial Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | | | - Maurizio Ventre
- Center for Advanced Biomaterial for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy; Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy; Department of Chemical, Materials and Industrial Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Daniela Marasco
- Department of Pharmacy, University of Naples "Federico II", Italy
| |
Collapse
|
13
|
Pradhan S, Banda OA, Farino CJ, Sperduto JL, Keller KA, Taitano R, Slater JH. Biofabrication Strategies and Engineered In Vitro Systems for Vascular Mechanobiology. Adv Healthc Mater 2020; 9:e1901255. [PMID: 32100473 PMCID: PMC8579513 DOI: 10.1002/adhm.201901255] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/24/2020] [Indexed: 12/17/2022]
Abstract
The vascular system is integral for maintaining organ-specific functions and homeostasis. Dysregulation in vascular architecture and function can lead to various chronic or acute disorders. Investigation of the role of the vascular system in health and disease has been accelerated through the development of tissue-engineered constructs and microphysiological on-chip platforms. These in vitro systems permit studies of biochemical regulation of vascular networks and parenchymal tissue and provide mechanistic insights into the biophysical and hemodynamic forces acting in organ-specific niches. Detailed understanding of these forces and the mechanotransductory pathways involved is necessary to develop preventative and therapeutic strategies targeting the vascular system. This review describes vascular structure and function, the role of hemodynamic forces in maintaining vascular homeostasis, and measurement approaches for cell and tissue level mechanical properties influencing vascular phenomena. State-of-the-art techniques for fabricating in vitro microvascular systems, with varying degrees of biological and engineering complexity, are summarized. Finally, the role of vascular mechanobiology in organ-specific niches and pathophysiological states, and efforts to recapitulate these events using in vitro microphysiological systems, are explored. It is hoped that this review will help readers appreciate the important, but understudied, role of vascular-parenchymal mechanotransduction in health and disease toward developing mechanotherapeutics for treatment strategies.
Collapse
Affiliation(s)
- Shantanu Pradhan
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Omar A. Banda
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - Cindy J. Farino
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - John L. Sperduto
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - Keely A. Keller
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - Ryan Taitano
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
| | - John H. Slater
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE, 19716, USA
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716, USA
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711, USA
| |
Collapse
|
14
|
Brückner DB, Fink A, Rädler JO, Broedersz CP. Disentangling the behavioural variability of confined cell migration. J R Soc Interface 2020. [DOI: 10.1098/rsif.2019.0689] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cell-to-cell variability is inherent to numerous biological processes, including cell migration. Quantifying and characterizing the variability of migrating cells is challenging, as it requires monitoring many cells for long time windows under identical conditions. Here, we observe the migration of single human breast cancer cells (MDA-MB-231) in confining two-state micropatterns. To describe the stochastic dynamics of this confined migration, we employ a dynamical systems approach. We identify statistics to measure the behavioural variance of the migration, which significantly exceeds that predicted by a population-averaged stochastic model. This additional variance can be explained by the combination of an ‘ageing’ process and population heterogeneity. To quantify population heterogeneity, we decompose the cells into subpopulations of slow and fast cells, revealing the presence of distinct classes of dynamical systems describing the migration, ranging from bistable to limit cycle behaviour. Our findings highlight the breadth of migration behaviours present in cell populations.
Collapse
Affiliation(s)
- David B. Brückner
- Arnold-Sommerfeld-Center for Theoretical Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Bayern, Germany
| | - Alexandra Fink
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Bayern, Germany
| | - Joachim O. Rädler
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Bayern, Germany
| | - Chase P. Broedersz
- Arnold-Sommerfeld-Center for Theoretical Physics and Center for NanoScience, Ludwig-Maximilians-Universität, München, Bayern, Germany
| |
Collapse
|
15
|
Rianna C, Radmacher M, Kumar S. Direct evidence that tumor cells soften when navigating confined spaces. Mol Biol Cell 2020; 31:1726-1734. [PMID: 31995446 PMCID: PMC7521845 DOI: 10.1091/mbc.e19-10-0588] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The mechanical properties of cells strongly regulate many physiological and pathological processes. For example, in cancer, invasive and metastatic tumor cells have often been reported to be softer than nontumor cells, raising speculation that cancer cells might adaptively soften to facilitate migration through narrow tissue spaces. Despite growing interest in targeting cell softening to impede invasion and metastasis, it remains to be directly demonstrated that tumor cells soften as they migrate through confined spaces. Here, we address this open question by combining topographically patterned substrates with atomic force microscopy (AFM). Using a polydimethylsiloxane open-roof microdevice featuring tapered, fibronectin-coated channels, we followed the migration of U2OS cells through various stages of confinement while simultaneously performing AFM indentation. As cells progress from unconfined migration to fully confined migration, cells soften and exclude Yes-associated protein from the nucleus. Superresolution imaging reveals that confinement induces remodeling of actomyosin stress fiber architecture. Companion studies with flat one-dimensional microlines indicate that the changes in cytoarchitecture and mechanics are intrinsically driven by topographical confinement rather than changes in cellular aspect ratio. Our studies represent among the most direct evidence to date that tumor cells soften during confined migration and support cell softening as a mechanoadaptive mechanism during invasion.
Collapse
Affiliation(s)
- Carmela Rianna
- Institute of Biophysics, University of Bremen, 28359 Bremen, Germany.,Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720
| | - Manfred Radmacher
- Institute of Biophysics, University of Bremen, 28359 Bremen, Germany
| | - Sanjay Kumar
- Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720
| |
Collapse
|
16
|
Hoffman LM, Smith MA, Jensen CC, Yoshigi M, Blankman E, Ullman KS, Beckerle MC. Mechanical stress triggers nuclear remodeling and the formation of transmembrane actin nuclear lines with associated nuclear pore complexes. Mol Biol Cell 2020; 31:1774-1787. [PMID: 31967947 PMCID: PMC7521858 DOI: 10.1091/mbc.e19-01-0027] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Mechanical stimulation of fibroblasts induces changes in the actin cytoskeleton including stress fiber (SF) reinforcement and realignment. Here we characterize the nuclear response to mechanical stimulation (uniaxial cyclic stretch). Using fluorescence microscopy and quantitative image analysis we find that stretch-induced nuclear elongation and alignment perpendicular to the stretch vector are dependent on formin-regulated actin polymerization. The mechanosensitive transcription factors Yes-associated protein/Transcriptional coactivator with PDZ domain (YAP/TAZ) and myocardin-related transcription factor (MRTF-A, also known as MKL1 and MAL1) accumulate in the nucleus and activate their target genes in response to uniaxial cyclic stretch. We show that transmembrane actin nuclear (TAN) lines are induced by stretch stimulation and nuclear envelope (NE) proteins including nesprins, SUN2, and lamins form Linkers of the Nucleoskeleton and Cytoskeleton (LINC) complexes aligned with actin SFs. These NE structures are altered by pharmacological treatments (Cytochalasin D and Jasplakinolide) or genetic disruption (zyxin gene deletion) that alter actin, and their persistence requires maintenance of stretch stimulation. Nuclear pore complexes (NPCs) accumulate at TAN lines providing a potential mechanism for linking mechanical cues to NPC function.
Collapse
Affiliation(s)
- Laura M Hoffman
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112.,Department of Biology, University of Utah, Salt Lake City, UT 84112
| | - Mark A Smith
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112.,Department of Biology, University of Utah, Salt Lake City, UT 84112
| | | | - Masaaki Yoshigi
- Department of Pediatrics, University of Utah, Salt Lake City, UT 84112
| | | | - Katharine S Ullman
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112.,Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112
| | - Mary C Beckerle
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112.,Department of Biology, University of Utah, Salt Lake City, UT 84112.,Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112
| |
Collapse
|
17
|
Azad T, Ghahremani M, Yang X. The Role of YAP and TAZ in Angiogenesis and Vascular Mimicry. Cells 2019; 8:cells8050407. [PMID: 31052445 PMCID: PMC6562567 DOI: 10.3390/cells8050407] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023] Open
Abstract
Angiogenesis, the formation of new blood vessels from pre-existing vasculature, is a physiological process that begins in utero and continues throughout life in both good health and disease. Understanding the underlying mechanism in angiogenesis could uncover a new therapeutic approach in pathological angiogenesis. Since its discovery, the Hippo signaling pathway has emerged as a key player in controlling organ size and tissue homeostasis. Recently, new studies have discovered that Hippo and two of its main effectors, Yes-associated protein (YAP) and its paralog transcription activator with PDZ binding motif (TAZ), play critical roles during angiogenesis. In this review, we summarize the mechanisms by which YAP/TAZ regulate endothelial cell shape, behavior, and function in angiogenesis. We further discuss how YAP/TAZ function as part of developmental and pathological angiogenesis. Finally, we review the role of YAP/TAZ in tumor vascular mimicry and propose directions for future work.
Collapse
Affiliation(s)
- Taha Azad
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON K7L 3N6, Canada.
| | - Mina Ghahremani
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada.
| | - Xiaolong Yang
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON K7L 3N6, Canada.
| |
Collapse
|
18
|
Kassianidou E, Kalita J, Lim RYH. The role of nucleocytoplasmic transport in mechanotransduction. Exp Cell Res 2019; 377:86-93. [PMID: 30768931 DOI: 10.1016/j.yexcr.2019.02.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/10/2019] [Accepted: 02/12/2019] [Indexed: 12/12/2022]
Abstract
Cells integrate mechanical and biochemical signals via a process called mechanotransduction to generate essential gene expression patterns in space and time. This is vital for cell migration and proliferation as well as tissue morphogenesis and remodeling. While the force-sensing and force-transducing mechanisms are generally known, it remains unclear how mechanoresponsive transcription factors (TFs) are selectively translocated into the nucleus upon force activation. Such TFs include Yes-Associated Protein (YAP), Myocardin Related Transcription Factors (MRTFs), Hypoxia Induced Factors (HIFs) and others. Here, we discuss how the nucleocytoplasmic transport machinery intersects with mechanoresponsive TFs to facilitate their selective transport through nuclear pore complexes.
Collapse
Affiliation(s)
- Elena Kassianidou
- Biozentrum and the Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland
| | - Joanna Kalita
- Biozentrum and the Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland
| | - Roderick Y H Lim
- Biozentrum and the Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland.
| |
Collapse
|
19
|
van Grinsven E, Leliefeld PHC, Pillay J, van Aalst CW, Vrisekoop N, Koenderman L. A comprehensive three-dimensional assay to assess neutrophil defense against bacteria. J Immunol Methods 2018; 462:83-90. [PMID: 30205106 DOI: 10.1016/j.jim.2018.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/12/2018] [Accepted: 09/06/2018] [Indexed: 11/30/2022]
Abstract
Neutrophil antibacterial capacity is measured in animal models and in vitro as an important indicator of neutrophil function. To be able to extrapolate their conclusions, in vitro experiments should mimic the in vivo situation. In vivo, antibacterial capacity depends on multiple steps of bacterial sensing, priming, chemotaxis, phagocytosis and intracellular killing. Therefore, we developed a simply executed assay that involves multiple steps in one assay. The neutrophils were incorporated into a three-dimensional matrix of fibrin fibers, in which they could freely migrate. The fibrin matrix provided a more physiological representation of tissue structure than a shaken suspension and extended ex vivo survival of neutrophils. Staphylococci endogenously producing GFP (Green Fluorescent Protein) provided a real-time quantification of the bacterial load without the need for lysing the fibrin matrix or counting of colony forming units on agar plates. The delay in bacterial outgrowth serves as a measure for the relative antibacterial capacity of the neutrophils. Additionally, neutrophil capacity could easily be measured high-throughput in a 96-wells format. In this new assay we study neutrophil behavior in a physiologically relevant setting and explore many functions of the neutrophil in a single test. The functional capacity of neutrophils from different in vitro treatments or different donors can directly be compared.
Collapse
Affiliation(s)
- Erinke van Grinsven
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands; Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pieter H C Leliefeld
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Janesh Pillay
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Anesthesiology and Critical Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Corneli W van Aalst
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands; Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Nienke Vrisekoop
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands; Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Leo Koenderman
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands; Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands.
| |
Collapse
|