1
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Selcuk K, Leitner A, Braun L, Le Blanc F, Pacak P, Pot S, Vogel V. Transglutaminase 2 has higher affinity for relaxed than for stretched fibronectin fibers. Matrix Biol 2024; 125:113-132. [PMID: 38135164 DOI: 10.1016/j.matbio.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/20/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Transglutaminase 2 (TG2) plays a vital role in stabilizing extracellular matrix (ECM) proteins through enzymatic crosslinking during tissue growth, repair, and inflammation. TG2 also binds non-covalently to fibronectin (FN), an essential component of the ECM, facilitating cell adhesion, migration, proliferation, and survival. However, the interaction between TG2 and fibrillar FN remains poorly understood, as most studies have focused on soluble or surface-adsorbed FN or FN fragments, which differ in their conformations from insoluble FN fibers. Using a well-established in vitro FN fiber stretch assay, we discovered that the binding of a crosslinking enzyme to ECM fibers is mechano-regulated. TG2 binding to FN is tuned by the mechanical tension of FN fibers, whereby TG2 predominantly co-localizes to low-tension FN fibers, while fiber stretching reduces their affinity for TG2. This mechano-regulated binding relies on the proximity between the N-terminal β-sandwich and C-terminal β-barrels of TG2. Crosslinking mass spectrometry (XL-MS) revealed a novel TG2-FN synergy site within TG2's C-terminal β-barrels that interacts with FN regions located outside of the canonical gelatin binding domain, specifically FNI2 and FNIII14-15. Combining XL-MS distance restraints with molecular docking revealed the mechano-regulated binding mechanism between TG2 and modules FNI7-9 by which mechanical forces regulate TG2-FN interactions. This highlights a previously unrecognized role of TG2 as a tension sensor for FN fibers. This novel interaction mechanism has significant implications in physiology and mechanobiology, including how forces regulate cell adhesion, spreading, migration, phenotype modulation, depending on the tensional state of ECM fibers. Data are available via ProteomeXchange with identifier PXD043976.
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Affiliation(s)
- Kateryna Selcuk
- Department of Health Sciences and Technology, Institute of Translational Medicine, Laboratory of Applied Mechanobiology, ETH Zurich, Gloriastrasse 37-39 GLC G11, CH-8092 Zurich, Switzerland
| | - Alexander Leitner
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Otto-Stern-Weg 3, CH-8093 Zurich, Switzerland
| | - Lukas Braun
- Department of Health Sciences and Technology, Institute of Translational Medicine, Laboratory of Applied Mechanobiology, ETH Zurich, Gloriastrasse 37-39 GLC G11, CH-8092 Zurich, Switzerland
| | - Fanny Le Blanc
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Otto-Stern-Weg 3, CH-8093 Zurich, Switzerland
| | - Paulina Pacak
- Department of Health Sciences and Technology, Institute of Translational Medicine, Laboratory of Applied Mechanobiology, ETH Zurich, Gloriastrasse 37-39 GLC G11, CH-8092 Zurich, Switzerland
| | - Simon Pot
- Department of Health Sciences and Technology, Institute of Translational Medicine, Laboratory of Applied Mechanobiology, ETH Zurich, Gloriastrasse 37-39 GLC G11, CH-8092 Zurich, Switzerland
| | - Viola Vogel
- Department of Health Sciences and Technology, Institute of Translational Medicine, Laboratory of Applied Mechanobiology, ETH Zurich, Gloriastrasse 37-39 GLC G11, CH-8092 Zurich, Switzerland.
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2
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Fonta CM, Loustau T, Li C, Poilil Surendran S, Hansen U, Murdamoothoo D, Benn MC, Velazquez-Quesada I, Carapito R, Orend G, Vogel V. Infiltrating CD8+ T cells and M2 macrophages are retained in tumor matrix tracks enriched in low tension fibronectin fibers. Matrix Biol 2023; 116:1-27. [PMID: 36669744 DOI: 10.1016/j.matbio.2023.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 12/31/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023]
Abstract
Tracks rich in matrix and cells, as described in several cancer types, have immunosuppressive functions and separate tumor nests and stroma, yet their origin is unknown. Immunostainings of cryosections from mouse breast tumors show that these tracks are bordered by an endothelial-like basement membrane, filled with fibers of collagen adjacent to tenascin-C (TNC) and low-tension fibronectin (Fn) fibers. While present in early-stage tumors and maturing with time, tracks still form under TNC KO conditions, however, host (not tumor cell)-derived TNC is important for track maturation. Tumor infiltrating leukocytes (mostly M2 macrophages and CD8+ T cells) are retained in tracks of early-stage tumors. Following track maturation, retained tumor infiltrating leukocyte (TIL) numbers get reduced and more CD8+ TIL enter the tumor nests in the absence of TNC. As these tracks are enriched with platelets and fibrinogen and have a demarcating endothelial-like basement membrane often adjacent to endothelial cells, this suggests a role of blood vessels in the formation of these tracks. The Fn fiber tension probe FnBPA5 colocalizes with TNC and immune cells in the tracks and shows decreased binding in tracks lacking TNC. Consequently, FnBPA5 can serve as probe for tumor matrix tracks that have immune suppressive properties.
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Affiliation(s)
- Charlotte M Fonta
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Vladimir Prelog Weg, Zurich CH-8093, Switzerland
| | - Thomas Loustau
- The Tumor Microenvironment Laboratory, INSERM U1109, Hôpital Civil, Institut d' Hématologie et d'Immunologie, 1 Place de l'Hôpital, Strasbourg 67091, France; Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France
| | - Chengbei Li
- The Tumor Microenvironment Laboratory, INSERM U1109, Hôpital Civil, Institut d' Hématologie et d'Immunologie, 1 Place de l'Hôpital, Strasbourg 67091, France; Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France
| | - Suchithra Poilil Surendran
- The Tumor Microenvironment Laboratory, INSERM U1109, Hôpital Civil, Institut d' Hématologie et d'Immunologie, 1 Place de l'Hôpital, Strasbourg 67091, France; Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France
| | - Uwe Hansen
- Institute for Musculoskeletal Medicine (IMM), University Hospital Muenster, Muenster, Federal Republic of Germany
| | - Devadarssen Murdamoothoo
- The Tumor Microenvironment Laboratory, INSERM U1109, Hôpital Civil, Institut d' Hématologie et d'Immunologie, 1 Place de l'Hôpital, Strasbourg 67091, France; MN3T (The Microenvironmental Niche in Tumorigenesis and Targeted Therapy), INSERM U1109, 3 avenue Molière, Strasbourg, Hautepierre, France; Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France
| | - Mario C Benn
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Vladimir Prelog Weg, Zurich CH-8093, Switzerland
| | - Ines Velazquez-Quesada
- The Tumor Microenvironment Laboratory, INSERM U1109, Hôpital Civil, Institut d' Hématologie et d'Immunologie, 1 Place de l'Hôpital, Strasbourg 67091, France; MN3T (The Microenvironmental Niche in Tumorigenesis and Targeted Therapy), INSERM U1109, 3 avenue Molière, Strasbourg, Hautepierre, France; Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France
| | - Raphael Carapito
- Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France; Platform GENOMAX, INSERM UMR_S 1109, Institut thématique interdisciplinaire (ITI) de Médecine de Précision de Strasbourg, Transplantex NG, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, LabEx TRANSPLANTEX, Strasbourg 67091, France
| | - Gertraud Orend
- The Tumor Microenvironment Laboratory, INSERM U1109, Hôpital Civil, Institut d' Hématologie et d'Immunologie, 1 Place de l'Hôpital, Strasbourg 67091, France; MN3T (The Microenvironmental Niche in Tumorigenesis and Targeted Therapy), INSERM U1109, 3 avenue Molière, Strasbourg, Hautepierre, France; Université Strasbourg, Strasbourg 67000, France; Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg 67000, France.
| | - Viola Vogel
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Vladimir Prelog Weg, Zurich CH-8093, Switzerland.
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3
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Pawluchin A, Galic M. Moving through a changing world: Single cell migration in 2D vs. 3D. Front Cell Dev Biol 2022; 10:1080995. [PMID: 36605722 PMCID: PMC9810339 DOI: 10.3389/fcell.2022.1080995] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Migration of single adherent cells is frequently observed in the developing and adult organism and has been the subject of many studies. Yet, while elegant work has elucidated molecular and mechanical cues affecting motion dynamics on a flat surface, it remains less clear how cells migrate in a 3D setting. In this review, we explore the changing parameters encountered by cells navigating through a 3D microenvironment compared to cells crawling on top of a 2D surface, and how these differences alter subcellular structures required for propulsion. We further discuss how such changes at the micro-scale impact motion pattern at the macro-scale.
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Affiliation(s)
- Anna Pawluchin
- Institute of Medical Physics and Biophysics, Medical Faculty, University of Münster, Münster, Germany,Cells in Motion Interfaculty Centre, University of Münster, Münster, Germany,CIM-IMRPS Graduate Program, Münster, Germany
| | - Milos Galic
- Institute of Medical Physics and Biophysics, Medical Faculty, University of Münster, Münster, Germany,Cells in Motion Interfaculty Centre, University of Münster, Münster, Germany,*Correspondence: Milos Galic,
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4
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Jain N, Lord JM, Vogel V. Mechanoimmunology: Are inflammatory epigenetic states of macrophages tuned by biophysical factors? APL Bioeng 2022; 6:031502. [PMID: 36051106 PMCID: PMC9427154 DOI: 10.1063/5.0087699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022] Open
Abstract
Many inflammatory diseases that are responsible for a majority of deaths are still uncurable, in part as the underpinning pathomechanisms and how to combat them is still poorly understood. Tissue-resident macrophages play pivotal roles in the maintenance of tissue homeostasis, but if they gradually convert to proinflammatory phenotypes, or if blood-born proinflammatory macrophages persist long-term after activation, they contribute to chronic inflammation and fibrosis. While biochemical factors and how they regulate the inflammatory transcriptional response of macrophages have been at the forefront of research to identify targets for therapeutic interventions, evidence is increasing that physical factors also tune the macrophage phenotype. Recently, several mechanisms have emerged as to how physical factors impact the mechanobiology of macrophages, from the nuclear translocation of transcription factors to epigenetic modifications, perhaps even DNA methylation. Insight into the mechanobiology of macrophages and associated epigenetic modifications will deliver novel therapeutic options going forward, particularly in the context of increased inflammation with advancing age and age-related diseases. We review here how biophysical factors can co-regulate pro-inflammatory gene expression and epigenetic modifications and identify knowledge gaps that require urgent attention if this therapeutic potential is to be realized.
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Affiliation(s)
| | | | - Viola Vogel
- Department of Health Sciences and Technology, Institute of Translational Medicine, ETH Zurich, Zurich, Switzerland
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5
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Lee KY, Nguyen HT, Setiawati A, Nam S, Kim M, Ko I, Jung WH, Parker KK, Kim C, Shin K. An Extracellular Matrix-Liposome Composite, a Novel Extracellular Matrix Delivery System for Accelerated Tissue Regeneration. Adv Healthc Mater 2022; 11:e2101599. [PMID: 34800312 DOI: 10.1002/adhm.202101599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/26/2021] [Indexed: 11/10/2022]
Abstract
The unfolded states of fibronectin (FN) subsequently induce the formation of an extracellular matrix (ECM) fibrillar network, which is necessary to generate new substitutive tissues. Here, the authors demonstrate that negatively charged small unilamellar vesicles (SUVs) qualify as candidates for FN delivery due to their remarkable effects on the autonomous binding and unfolding of FN, which leads to increased tissue regeneration. In vitro experiments revealed that the FN-SUV complex remarkably increased the attachment, differentiation, and migration of fibroblasts. The potential utilization of this complex in vivo to treat inflammatory colon diseases is also described based on results obtained for ameliorated conditions in rats with ulcerative colitis (UC) that had been treated with the FN-SUV complex. Their findings provide a new ECM-delivery platform for ECM-based therapeutic applications and suggest that properly designed SUVs may be an unprecedented FN-delivery system that is highly effective in treating UC and inflammatory bowel diseases.
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Affiliation(s)
- Keel Yong Lee
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Disease Biophysics Group John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge 02138 USA
| | - Huong Thanh Nguyen
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Department of Life Science Sogang University Seoul 02447 Republic of Korea
- Faculty of Pharmacy Sanata Dharma University Yogyakarta 55284 Indonesia
| | - So‐Jung Nam
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Minyoung Kim
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Il‐Gyu Ko
- Department of Physiology College of Medicine Kyung Hee University Seoul 02447 Republic of Korea
| | - Won Hee Jung
- Department of Systems Biotechnology Chung‐Ang University Anseong 17546 Republic of Korea
| | - Kevin K. Parker
- Disease Biophysics Group John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge 02138 USA
| | - Chang‐Ju Kim
- Department of Physiology College of Medicine Kyung Hee University Seoul 02447 Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Disease Biophysics Group John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge 02138 USA
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6
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Bednarz-Misa I, Bromke MA, Krzystek-Korpacka M. Interleukin (IL)-7 Signaling in the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1290:9-49. [PMID: 33559853 DOI: 10.1007/978-3-030-55617-4_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Interleukin (IL)-7 plays an important immunoregulatory role in different types of cells. Therefore, it attracts researcher's attention, but despite the fact, many aspects of its modulatory action, as well as other functionalities, are still poorly understood. The review summarizes current knowledge on the interleukin-7 and its signaling cascade in context of cancer development. Moreover, it provides a cancer-type focused description of the involvement of IL-7 in solid tumors, as well as hematological malignancies.The interleukin has been discovered as a growth factor crucial for the early lymphocyte development and supporting the growth of malignant cells in certain leukemias and lymphomas. Therefore, its targeting has been explored as a treatment modality in hematological malignancies, while the unique ability to expand lymphocyte populations selectively and without hyperinflammation has been used in experimental immunotherapies in patients with lymphopenia. Ever since the early research demonstrated a reduced growth of solid tumors in the presence of IL-7, the interleukin application in boosting up the anticancer immunity has been investigated. However, a growing body of evidence indicative of IL-7 upregulation in carcinomas, facilitating tumor growth and metastasis and aiding drug-resistance, is accumulating. It therefore becomes increasingly apparent that the response to the IL-7 stimulus strongly depends on cell type, their developmental stage, and microenvironmental context. The interleukin exerts its regulatory action mainly through phosphorylation events in JAK/STAT and PI3K/Akt pathways, while the significance of MAPK pathway seems to be limited to solid tumors. Given the unwavering interest in IL-7 application in immunotherapy, a better understanding of interleukin role, source in tumor microenvironment, and signaling pathways, as well as the identification of cells that are likely to respond should be a research priority.
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Affiliation(s)
- Iwona Bednarz-Misa
- Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Mariusz A Bromke
- Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
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7
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Knecht RS, Bucher CH, Van Linthout S, Tschöpe C, Schmidt-Bleek K, Duda GN. Mechanobiological Principles Influence the Immune Response in Regeneration: Implications for Bone Healing. Front Bioeng Biotechnol 2021; 9:614508. [PMID: 33644014 PMCID: PMC7907627 DOI: 10.3389/fbioe.2021.614508] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/22/2021] [Indexed: 12/13/2022] Open
Abstract
A misdirected or imbalanced local immune composition is often one of the reasons for unsuccessful regeneration resulting in scarring or fibrosis. Successful healing requires a balanced initiation and a timely down-regulation of the inflammation for the re-establishment of a biologically and mechanically homeostasis. While biomaterial-based approaches to control local immune responses are emerging as potential new treatment options, the extent to which biophysical material properties themselves play a role in modulating a local immune niche response has so far been considered only occasionally. The communication loop between extracellular matrix, non-hematopoietic cells, and immune cells seems to be specifically sensitive to mechanical cues and appears to play a role in the initiation and promotion of a local inflammatory setting. In this review, we focus on the crosstalk between ECM and its mechanical triggers and how they impact immune cells and non-hematopoietic cells and their crosstalk during tissue regeneration. We realized that especially mechanosensitive receptors such as TRPV4 and PIEZO1 and the mechanosensitive transcription factor YAP/TAZ are essential to regeneration in various organ settings. This indicates novel opportunities for therapeutic approaches to improve tissue regeneration, based on the immune-mechanical principles found in bone but also lung, heart, and skin.
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Affiliation(s)
- Raphael S Knecht
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christian H Bucher
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Carsten Tschöpe
- Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Department of Cardiology, Charite'-Universitätsmedizin Berlin, Berlin, Germany
| | - Katharina Schmidt-Bleek
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Georg N Duda
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
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8
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Fonta CM, Arnoldini S, Jaramillo D, Moscaroli A, Oxenius A, Behe M, Vogel V. Fibronectin fibers are highly tensed in healthy organs in contrast to tumors and virus-infected lymph nodes. Matrix Biol Plus 2020; 8:100046. [PMID: 33543039 PMCID: PMC7852196 DOI: 10.1016/j.mbplus.2020.100046] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 12/12/2022] Open
Abstract
The extracellular matrix (ECM) acts as reservoir for a plethora of growth factors and cytokines some of which are hypothesized to be regulated by ECM fiber tension. Yet, ECM fiber tension has never been mapped in healthy versus diseased organs. Using our recently developed tension nanoprobe derived from the bacterial adhesin FnBPA5, which preferentially binds to structurally relaxed fibronectin fibers, we discovered here that fibronectin fibers are kept under high tension in selected healthy mouse organs. In contrast, tumor tissues and virus-infected lymph nodes exhibited a significantly higher content of relaxed or proteolytically cleaved fibronectin fibers. This demonstrates for the first time that the tension of ECM fibers is significantly reduced upon pathological tissue transformations. This has wide implications, as the active stretching of fibronectin fibers adjusts critical cellular niche parameters and thereby tunes the reciprocal cell-ECM crosstalk. Mapping the tensional state of fibronectin fibers opens novel and unexpected diagnostic opportunities. Mechanobiology of extracellular matrix changes upon pathological transformations. Fibronectin is significantly more relaxed in tumors than in healthy organs. Relaxed fibronectin is found close to myofibroblasts and dense collagen fibers. Viral infection reduces fibronectin fiber tension in lymph nodes. Use of a tension-sensitive adhesin to probe fibronectin fiber tension in tissues
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Key Words
- CAFs, cancer associated fibroblasts
- CLEC-2, C-type Lectin Receptor
- Cancer
- DCs, dendritic cells
- ECM, extracellular matrix
- Extracellular matrix
- FRCs, fibroblastic reticular cells
- Fibronectin
- IHC, immunohistochemistry
- IL-7, Interleukin 7
- LCMV, lymphocytic choriomeningitis virus
- Lymph node
- MMPs, matrix metalloproteinases
- Mechanobiology
- PDPN, podoplanin
- SHG, second harmonic generation
- TGF-β, Transforming Growth Factor-beta
- Virus infection
- α-SMA, alpha smooth muscle actin
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Affiliation(s)
- Charlotte M Fonta
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Simon Arnoldini
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, CH-8093 Zurich, Switzerland
| | | | - Alessandra Moscaroli
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Annette Oxenius
- Institute of Microbiology, ETH Zürich, CH-8093 Zurich, Switzerland
| | - Martin Behe
- Center for Radiopharmaceutical Sciences, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Viola Vogel
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, CH-8093 Zurich, Switzerland
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9
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Abstract
Integrins, and integrin-mediated adhesions, have long been recognized to provide the main molecular link attaching cells to the extracellular matrix (ECM) and to serve as bidirectional hubs transmitting signals between cells and their environment. Recent evidence has shown that their combined biochemical and mechanical properties also allow integrins to sense, respond to and interact with ECM of differing properties with exquisite specificity. Here, we review this work first by providing an overview of how integrin function is regulated from both a biochemical and a mechanical perspective, affecting integrin cell-surface availability, binding properties, activation or clustering. Then, we address how this biomechanical regulation allows integrins to respond to different ECM physicochemical properties and signals, such as rigidity, composition and spatial distribution. Finally, we discuss the importance of this sensing for major cell functions by taking cell migration and cancer as examples.
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10
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Zheng M, Ambesi A, J. McKeown-Longo P. Role of TLR4 Receptor Complex in the Regulation of the Innate Immune Response by Fibronectin. Cells 2020; 9:cells9010216. [PMID: 31952223 PMCID: PMC7017243 DOI: 10.3390/cells9010216] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/07/2020] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
Chronic inflammation and subsequent tissue fibrosis are associated with a biochemical and mechanical remodeling of the fibronectin matrix. Due to its conformational lability, fibronectin is considerably stretched by the contractile forces of the fibrotic microenvironment, resulting in the unfolding of its Type III domains. In earlier studies, we have shown that a peptide mimetic of a partially unfolded fibronectin Type III domain, FnIII-1c, functions as a Damage Associated Molecular Pattern (DAMP) molecule to induce activation of a toll-like receptor 4 (TLR4)/NF-B pathway and the subsequent release of fibro-inflammatory cytokines from human dermal fibroblasts. In the current study, we evaluated the requirement of the canonical TLR4/MD2/CD14 receptor complex in the regulation of FnIII-1c induced cytokine release. Using dermal fibroblasts and human embryonic kidney (HEK) cells, we found that all the components of the TLR4/MD2/CD14 complex were required for the release of the fibro-inflammatory cytokine, interleukin 8 (IL-8) in response to both FnIII-1c and the canonical TLR4 ligand, lipopolysaccharide (LPS). However, FnIII-1c mediated IL-8 release was strictly dependent on membrane-associated CD14, while LPS could use soluble CD14. These findings demonstrate that LPS and FnIII-1c share a similar but not identical mechanism of TLR4 activation in human dermal fibroblasts.
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11
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Schutrum BE, Whitman MA, Fischbach C. Biomaterials-Based Model Systems to Study Tumor–Microenvironment Interactions. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00077-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Taki M, Yamashita T, Yatabe K, Vogel V. Mechano-chromic protein-polymer hybrid hydrogel to visualize mechanical strain. SOFT MATTER 2019; 15:9388-9393. [PMID: 31609367 DOI: 10.1039/c9sm00380k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In a proof-of-concept study, a mechano-chromic hydrogel was synthesized here, via chemoenzymatic click conjugation of fluorophore-labeled fibronectin into a synthetic hydrogel co-polymers (i.e., poly-N-isopropylacrylamide/polyethylene glycol). The optical FRET response could be tuned by macroscopic stretch.
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Affiliation(s)
- Masumi Taki
- Laboratory of Applied Mechanobiology, Department of Health Sciences and Technology, ETH Zürich, Vladimir-Prelog-Weg 4, 8093 Zürich, Switzerland.
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13
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Graham J, Raghunath M, Vogel V. Fibrillar fibronectin plays a key role as nucleator of collagen I polymerization during macromolecular crowding-enhanced matrix assembly. Biomater Sci 2019; 7:4519-4535. [PMID: 31436263 PMCID: PMC6810780 DOI: 10.1039/c9bm00868c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Macromolecular crowding is used by tissue engineers to accelerate extracellular matrix assembly in vitro, however, most mechanistic studies focus on the impact of crowding on collagen fiber assembly and largely ignore the highly abundant provisional matrix protein fibronectin. We show that the accelerated collagen I assembly as induced by the neutral crowding molecule Ficoll is regulated by cell access to fibronectin. Ficoll treatment leads to significant increases in the amount of surface adherent fibronectin, which can readily be harvested by cells to speed up fibrillogenesis. FRET studies reveal that Ficoll crowding also upregulates the total amount of fibronectin fibers in a low-tension state through upregulating fibronectin assembly. Since un-stretched fibronectin fibers have more collagen binding sites to nucleate the onset of collagen fibrillogenesis, our data suggest that the Ficoll-induced upregulation of low-tension fibronectin fibers contributes to enhanced collagen assembly in crowded conditions. In contrast, chemical cross-linking of fibronectin to the glass substrate prior to cell seeding prevents early force mediated fibronectin harvesting from the substrate and suppresses upregulation of collagen I assembly in the presence of Ficoll, even though the crowded environment is known to drive enzymatic cleavage of procollagen and collagen fiber formation. To show that our findings can be exploited for tissue engineering applications, we demonstrate that the addition of supplemental fibronectin in the form of an adsorbed coating markedly improves the speed of tissue formation under crowding conditions.
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Affiliation(s)
- Jenna Graham
- Department of Health Sciences and Technology, ETH Zürich, CH-8093 Zürich, Switzerland.
| | - Michael Raghunath
- ZHAW School of Life Sciences and Facility Management, Institute for Chemistry and Biotechnology, Center for Cell Biology and Tissue Engineering, CH-8820 Wädenswil, Switzerland
| | - Viola Vogel
- Department of Health Sciences and Technology, ETH Zürich, CH-8093 Zürich, Switzerland.
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14
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Abstract
Integrins are heterodimeric cell surface receptors ensuring the mechanical connection between cells and the extracellular matrix. In addition to the anchorage of cells to the extracellular matrix, these receptors have critical functions in intracellular signaling, but are also taking center stage in many physiological and pathological conditions. In this review, we provide some historical, structural, and physiological notes so that the diverse functions of these receptors can be appreciated and put into the context of the emerging field of mechanobiology. We propose that the exciting journey of the exploration of these receptors will continue for at least another new generation of researchers.
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Affiliation(s)
- Michael Bachmann
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| | - Sampo Kukkurainen
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| | - Vesa P Hytönen
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| | - Bernhard Wehrle-Haller
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
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15
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Paten JA, Martin CL, Wanis JT, Siadat SM, Figueroa-Navedo AM, Ruberti JW, Deravi LF. Molecular Interactions between Collagen and Fibronectin: A Reciprocal Relationship that Regulates De Novo Fibrillogenesis. Chem 2019. [DOI: 10.1016/j.chempr.2019.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Abstract
Cells need to be anchored to extracellular matrix (ECM) to survive, yet the role of ECM in guiding developmental processes, tissue homeostasis, and aging has long been underestimated. How ECM orchestrates the deterioration of healthy to pathological tissues, including fibrosis and cancer, also remains poorly understood. Inquiring how alterations in ECM fiber tension might drive these processes is timely, as mechanobiology is a rapidly growing field, and many novel mechanisms behind the mechanical forces that can regulate protein, cell, and tissue functions have recently been deciphered. The goal of this article is to review how forces can switch protein functions, and thus cell signaling, and thereby inspire new approaches to exploit the mechanobiology of ECM in regenerative medicine as well as for diagnostic and therapeutic applications. Some of the mechanochemical switching concepts described here for ECM proteins are more general and apply to intracellular proteins as well.
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Affiliation(s)
- Viola Vogel
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department for Health Sciences and Technology, ETH Zürich, CH-8093 Zürich, Switzerland;
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17
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Hoffmann GA, Wong JY, Smith ML. On Force and Form: Mechano-Biochemical Regulation of Extracellular Matrix. Biochemistry 2019; 58:4710-4720. [PMID: 31144496 DOI: 10.1021/acs.biochem.9b00219] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The extracellular matrix is well-known for its structural role in supporting cells and tissues, and its important biochemical role in providing signals to cells has increasingly become apparent. These structural and biochemical roles are closely coupled through mechanical forces: the biochemistry of the extracellular matrix determines its mechanical properties, mechanical forces control release or display of biochemical signals from the extracellular matrix, and the mechanical properties of the matrix in turn influence the mechanical set point at which signals are sent. In this Perspective, we explain how the extracellular matrix is regulated by strain and mechanical forces. We show the impact of biochemistry and mechanical forces on in vivo assembly of extracellular matrix and illustrate how matrix can be generated in vitro using a variety of methods. We cover how the matrix can be characterized in terms of mechanics, composition, and conformation to determine its properties and to predict interactions. Finally, we explore how extracellular matrix remodeling, ligand binding, and hemostasis are regulated by mechanical forces. These recently discovered mechano-biochemical interactions have important functions in wound healing and disease progression. It is likely that mechanically altered extracellular matrix interactions are a commonly recurring theme, but due to limited tools to generate extracellular matrix fibers in vitro and lack of high-throughput methods to detect these interactions, it is hypothesized that many of these interactions have yet to be discovered.
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Affiliation(s)
- Gwendolyn A Hoffmann
- Department of Biomedical Engineering , Boston University , 44 Cummington Mall , Boston , Massachusetts 02215 , United States
| | - Joyce Y Wong
- Department of Biomedical Engineering , Boston University , 44 Cummington Mall , Boston , Massachusetts 02215 , United States
| | - Michael L Smith
- Department of Biomedical Engineering , Boston University , 44 Cummington Mall , Boston , Massachusetts 02215 , United States
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18
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Levy A, Feinstein R, Diesendruck CE. Mechanical Unfolding and Thermal Refolding of Single-Chain Nanoparticles Using Ligand–Metal Bonds. J Am Chem Soc 2019; 141:7256-7260. [DOI: 10.1021/jacs.9b01960] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Avishai Levy
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200008, Israel
| | - Roi Feinstein
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200008, Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200008, Israel
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19
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Bradshaw MJ, Hoffmann GA, Wong JY, Smith ML. Fibronectin fiber creep under constant force loading. Acta Biomater 2019; 88:78-85. [PMID: 30780000 DOI: 10.1016/j.actbio.2019.02.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 02/06/2019] [Accepted: 02/15/2019] [Indexed: 12/12/2022]
Abstract
Viscoelasticity is a fundamental property of virtually all biological materials, and proteinaceous, fibrous materials that constitute the extracellular matrix (ECM) are no exception. Viscoelasticity may be particularly important in the ECM since cells can apply mechanical stress resulting from cell contractility over very long periods of time. However, measurements of ECM fiber response to long-term constant force loading are scarce, despite the increasing recognition that mechanical strain regulates the biological function of some ECM fibers. We developed a dual micropipette system that applies constant force to single fibers for up to 8 h. We utilized this system to study the time dependent response of fibronectin (Fn) fibers to constant force, as Fn fibers exhibit tremendous extensibility before mechanical failure as well as strain dependent alterations in biological properties. These data demonstrate the Fn fibers continue to stretch under constant force loading for at least 8 h and that this long-term creep results in plastic deformation of Fn fibers, in contrast to elastic deformation of Fn fibers under short-term, but fast loading rate extension. These data demonstrate that physiologically-relevant loading may impart mechanical features to Fn fibers by switching them into an extended state that may have altered biological functions. STATEMENT OF SIGNIFICANCE: Measurements of extracellular matrix (ECM) fiber response to constant force loading are scarce, so we developed a novel technique for applying constant force to single ECM fibers. We used this technique to measure constant force creep of fibronectin fibers since these fibers have been shown to be mechanotransducers whose functions can be altered by mechanical strain. We found that fibronectin fibers creep under constant force loading for the duration of the experiment and that this creep behavior resembles a power law. Furthermore, we found that constant force creep results in plastic deformation of the fibers, which suggests that the mechanobiological switching of fibronectin can only occur once after long-term loading.
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Affiliation(s)
- Mark J Bradshaw
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, United States
| | - Gwendolyn A Hoffmann
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States
| | - Joyce Y Wong
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States
| | - Michael L Smith
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, United States.
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20
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Mezzenga R, Mitsi M. The Molecular Dance of Fibronectin: Conformational Flexibility Leads to Functional Versatility. Biomacromolecules 2018; 20:55-72. [PMID: 30403862 DOI: 10.1021/acs.biomac.8b01258] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Fibronectin, a large multimodular protein and one of the major fibrillar components of the extracellular matrix, has been the subject of study for many decades and plays critical roles in embryonic development and tissue homeostasis. Moreover, fibronectin has been implicated in the pathology of many diseases, including cancer, and abnormal depositions of fibronectin have been identified in a number of amyloid and nonamyloid lesions. The ability of fibronectin to carry all these diverse functionalities depends on interactions with a large number of molecules, including adhesive and signaling cell surface receptors, other components of the extracellular matrix, and growth factors and cytokines. The regulation and integration of such large number of interactions depends on the modular architecture of fibronectin, which allows a large number of conformations, exposing or destroying different binding sites. In this Review, we summarize the current knowledge regarding the conformational flexibility of fibronectin, with an emphasis on how it regulates the ability of fibronectin to interact with various signaling molecules and cell-surface receptors and to form supramolecular assemblies and fibrillar structures.
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Affiliation(s)
- Raffaele Mezzenga
- Laboratory of Food and Soft Materials , ETH Zurich , 8092 Zurich , Switzerland
| | - Maria Mitsi
- Laboratory of Food and Soft Materials , ETH Zurich , 8092 Zurich , Switzerland
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21
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Broders-Bondon F, Nguyen Ho-Bouldoires TH, Fernandez-Sanchez ME, Farge E. Mechanotransduction in tumor progression: The dark side of the force. J Cell Biol 2018; 217:1571-1587. [PMID: 29467174 PMCID: PMC5940296 DOI: 10.1083/jcb.201701039] [Citation(s) in RCA: 178] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 01/19/2018] [Accepted: 02/01/2018] [Indexed: 12/11/2022] Open
Abstract
Broders-Bondon et al. review the pathological mechanical properties of tumor tissues and how abnormal mechanical signals result in oncogenic biochemical signals during tumor progression. Cancer has been characterized as a genetic disease, associated with mutations that cause pathological alterations of the cell cycle, adhesion, or invasive motility. Recently, the importance of the anomalous mechanical properties of tumor tissues, which activate tumorigenic biochemical pathways, has become apparent. This mechanical induction in tumors appears to consist of the destabilization of adult tissue homeostasis as a result of the reactivation of embryonic developmental mechanosensitive pathways in response to pathological mechanical strains. These strains occur in many forms, for example, hypervascularization in late tumors leads to high static hydrodynamic pressure that can promote malignant progression through hypoxia or anomalous interstitial liquid and blood flow. The high stiffness of tumors directly induces the mechanical activation of biochemical pathways enhancing the cell cycle, epithelial–mesenchymal transition, and cell motility. Furthermore, increases in solid-stress pressure associated with cell hyperproliferation activate tumorigenic pathways in the healthy epithelial cells compressed by the neighboring tumor. The underlying molecular mechanisms of the translation of a mechanical signal into a tumor inducing biochemical signal are based on mechanically induced protein conformational changes that activate classical tumorigenic signaling pathways. Understanding these mechanisms will be important for the development of innovative treatments to target such mechanical anomalies in cancer.
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Affiliation(s)
- Florence Broders-Bondon
- Mechanics and Genetics of Embryonic and Tumor Development Group, Institut Curie, PSL Research University, Centre National de la Recherche Scientifique, UMR168, Inserm, Sorbonne Universities, Paris, France
| | - Thanh Huong Nguyen Ho-Bouldoires
- Mechanics and Genetics of Embryonic and Tumor Development Group, Institut Curie, PSL Research University, Centre National de la Recherche Scientifique, UMR168, Inserm, Sorbonne Universities, Paris, France
| | - Maria-Elena Fernandez-Sanchez
- Mechanics and Genetics of Embryonic and Tumor Development Group, Institut Curie, PSL Research University, Centre National de la Recherche Scientifique, UMR168, Inserm, Sorbonne Universities, Paris, France
| | - Emmanuel Farge
- Mechanics and Genetics of Embryonic and Tumor Development Group, Institut Curie, PSL Research University, Centre National de la Recherche Scientifique, UMR168, Inserm, Sorbonne Universities, Paris, France
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22
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Gauthier NC, Roca-Cusachs P. Mechanosensing at integrin-mediated cell–matrix adhesions: from molecular to integrated mechanisms. Curr Opin Cell Biol 2018; 50:20-26. [DOI: 10.1016/j.ceb.2017.12.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 12/22/2017] [Indexed: 12/21/2022]
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