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Chang CY, Pearce G, Betaneli V, Kapustsenka T, Hosseini K, Fischer-Friedrich E, Corbeil D, Karbanová J, Taubenberger A, Dahncke B, Rauner M, Furesi G, Perner S, Rost F, Jessberger R. The F-actin bundler SWAP-70 promotes tumor metastasis. Life Sci Alliance 2024; 7:e202302307. [PMID: 38760173 PMCID: PMC11101836 DOI: 10.26508/lsa.202302307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024] Open
Abstract
Dynamic rearrangements of the F-actin cytoskeleton are a hallmark of tumor metastasis. Thus, proteins that govern F-actin rearrangements are of major interest for understanding metastasis and potential therapies. We hypothesized that the unique F-actin binding and bundling protein SWAP-70 contributes importantly to metastasis. Orthotopic, ectopic, and short-term tail vein injection mouse breast and lung cancer models revealed a strong positive dependence of lung and bone metastasis on SWAP-70. Breast cancer cell growth, migration, adhesion, and invasion assays revealed SWAP-70's key role in these metastasis-related cell features and the requirement for SWAP-70 to bind F-actin. Biophysical experiments showed that tumor cell stiffness and deformability are negatively modulated by SWAP-70. Together, we present a hitherto undescribed, unique F-actin modulator as an important contributor to tumor metastasis.
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Affiliation(s)
- Chao-Yuan Chang
- https://ror.org/042aqky30 Institute for Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Glen Pearce
- https://ror.org/042aqky30 Institute for Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Viktoria Betaneli
- https://ror.org/042aqky30 Institute for Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Tatsiana Kapustsenka
- https://ror.org/042aqky30 Institute for Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Kamran Hosseini
- https://ror.org/042aqky30 Cluster of Excellence Physics of Life, Technische Universität Dresden, Dresden, Germany
| | - Elisabeth Fischer-Friedrich
- https://ror.org/042aqky30 Cluster of Excellence Physics of Life, Technische Universität Dresden, Dresden, Germany
| | - Denis Corbeil
- Biotechnology Center (BIOTEC) and Center for Molecular and Cellular Bioengineering, Dresden, Germany
- https://ror.org/042aqky30 Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Jana Karbanová
- Biotechnology Center (BIOTEC) and Center for Molecular and Cellular Bioengineering, Dresden, Germany
- https://ror.org/042aqky30 Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Anna Taubenberger
- Biotechnology Center (BIOTEC) and Center for Molecular and Cellular Bioengineering, Dresden, Germany
- https://ror.org/042aqky30 Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Björn Dahncke
- https://ror.org/042aqky30 Institute for Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Martina Rauner
- https://ror.org/042aqky30 Department of Medicine III and Center for Healthy Aging, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Giulia Furesi
- https://ror.org/042aqky30 Department of Medicine III and Center for Healthy Aging, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Sven Perner
- Institute of Pathology, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
- Institute of Pathology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Fabian Rost
- https://ror.org/042aqky30 DRESDEN-concept Genome Center, Technology Platform at the Center for Molecular and Cellular Bioengineering (CMCB), Technische Universität Dresden, Dresden, Germany
| | - Rolf Jessberger
- https://ror.org/042aqky30 Institute for Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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2
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Cong Y, Liu K, Huang Z, Lu J, Wang HH, Hong Y, Xie Z, Li H. A Bivalent Aptamer-Based DNA Agonist for EGFR Signaling Effectively Alleviates Ulcerative Colitis In Vivo. ACS Chem Biol 2024; 19:1280-1290. [PMID: 38837175 DOI: 10.1021/acschembio.4c00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
While epidermal growth factor (EGF) shows promise in addressing the clinical manifestations of intestinal ulcerative diseases by activating the EGF receptor (EGFR)-mediated cell signaling, its clinical application is hampered by poor protein hydrolytic stability, low thermostability, and difficulty in modification. The development of a novel EGFR agonist for ulcerative colitis remains an urgent need, necessitating innovative solutions to overcome the limitations of current therapies via recombinant EGF protein. Herein, we introduce a novel DNA agonist for EGFR, Dimer-YL, which employs a bivalent aptamer to induce stable receptor dimerization, thereby activating the EGFR signaling and related cell behaviors. Dimer-YL has been demonstrated to recapitulate the EGF-promoted cellular behaviors, including proliferation and migration, as well as repair the damage of intercellular tight junctions. Furthermore, our findings demonstrate the potent therapeutic function of Dimer-YL in alleviating DSS-induced ulcerative colitis in vivo. Together, the present work has revealed Dimer-YL as an innovative DNA molecule for effective EGFR activation, offering promise for the development of EGFR-agonistic agents for therapeutic purposes.
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Affiliation(s)
- Yulin Cong
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
| | - Kun Liu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
| | - Zihong Huang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
| | - Junjun Lu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
| | - Hong-Hui Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, P. R. China
| | - Yanjun Hong
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
| | - Zhiyong Xie
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
| | - Hao Li
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, P. R. China
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3
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Li Z, Zhao Z, Zhang G, Liu Y, Zheng S. LncRNA MEG3 inhibits the proliferation and migration abilities of colorectal cancer cells by competitively suppressing MiR-31 and reducing the binding of MiR-31 to target gene SFRP1. Aging (Albany NY) 2023; 16:2061-2076. [PMID: 38309281 PMCID: PMC10911365 DOI: 10.18632/aging.205274] [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: 04/12/2023] [Accepted: 10/04/2023] [Indexed: 02/05/2024]
Abstract
To explore the potential mechanism of long-chain non-coding ribonucleic acid (lncRNA) maternal expression gene 3 (MEG3) in colorectal cancer (CRC). The relationship between MEG3 and miR-31 was detected by dual-luciferase assay. Quantitative polymerase chain reaction was utilized to determine the expression of MEG3 in CRC cell lines. Cell Counting Kit-8 assay was performed to detect cell proliferation. Transwell, cell scratch wound assay, and monoclonal proliferation assay were used to detect the proliferation, migration, and invasion of cells. In addition, cell motility was evaluated by detecting the expression of cellular pseudopodia protein α-actinin via immunofluorescence assay, and cell proliferation and motility were judged by determining the expressions of Ki-67, MMP2 and MMP9 via Western blotting. The effect of MEG3 and miR-31 on the development of colorectal cancer was verified by nude mouse tumor-bearing assay and HE staining. Transient transfection with MEG3 overexpression plasmid revealed that MEG3 inhibited the proliferation and motility of cells. The results of dual-luciferase assay showed that MEG3 could specifically inhibit the expression of miR-31, which inhibits the development of colorectal cancer. Transwell, cell scratch wound assay, and monoclonal proliferation experiment showed that miR-31 enhanced cell proliferation, migration and invasion. MEG3 overexpression plasmid was capable of reversing the proliferation and motility of CRC cells enhanced by miR-31. MEG3 can inhibit the proliferation and motility of CRC cells by competitively suppressing the binding of miR-31 to the target gene SFRP1, thus playing an inhibitory role in the pathogenesis of CRC.
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Affiliation(s)
- Zheli Li
- Department of Gastroenterology, Dingzhou City People’s Hospital, Baoding, China
| | - Zhi Zhao
- Department of Gastroenterology, Dingzhou City People’s Hospital, Baoding, China
| | - Gang Zhang
- Department of Gastroenterology, Dingzhou City People’s Hospital, Baoding, China
| | - Yufeng Liu
- Department of Gastroenterology, Dingzhou City People’s Hospital, Baoding, China
| | - Shaohua Zheng
- Department of Gastroenterology, Dingzhou City People’s Hospital, Baoding, China
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4
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Feng S, Sanford JA, Weber T, Hutchinson-Bunch CM, Dakup PP, Paurus VL, Attah K, Sauro HM, Qian WJ, Wiley HS. A Phosphoproteomics Data Resource for Systems-level Modeling of Kinase Signaling Networks. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.03.551714. [PMID: 37577496 PMCID: PMC10418157 DOI: 10.1101/2023.08.03.551714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Building mechanistic models of kinase-driven signaling pathways requires quantitative measurements of protein phosphorylation across physiologically relevant conditions, but this is rarely done because of the insensitivity of traditional technologies. By using a multiplexed deep phosphoproteome profiling workflow, we were able to generate a deep phosphoproteomics dataset of the EGFR-MAPK pathway in non-transformed MCF10A cells across physiological ligand concentrations with a time resolution of <12 min and in the presence and absence of multiple kinase inhibitors. An improved phosphosite mapping technique allowed us to reliably identify >46,000 phosphorylation sites on >6600 proteins, of which >4500 sites from 2110 proteins displayed a >2-fold increase in phosphorylation in response to EGF. This data was then placed into a cellular context by linking it to 15 previously published protein databases. We found that our results were consistent with much, but not all previously reported data regarding the activation and negative feedback phosphorylation of core EGFR-ERK pathway proteins. We also found that EGFR signaling is biphasic with substrates downstream of RAS/MAPK activation showing a maximum response at <3ng/ml EGF while direct substrates, such as HGS and STAT5B, showing no saturation. We found that RAS activation is mediated by at least 3 parallel pathways, two of which depend on PTPN11. There appears to be an approximately 4-minute delay in pathway activation at the step between RAS and RAF, but subsequent pathway phosphorylation was extremely rapid. Approximately 80 proteins showed a >2-fold increase in phosphorylation across all experiments and these proteins had a significantly higher median number of phosphorylation sites (~18) relative to total cellular phosphoproteins (~4). Over 60% of EGF-stimulated phosphoproteins were downstream of MAPK and included mediators of cellular processes such as gene transcription, transport, signal transduction and cytoskeletal arrangement. Their phosphorylation was either linear with respect to MAPK activation or biphasic, corresponding to the biphasic signaling seen at the level of the EGFR. This deep, integrated phosphoproteomics data resource should be useful in building mechanistic models of EGFR and MAPK signaling and for understanding how downstream responses are regulated.
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Affiliation(s)
- Song Feng
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - James A. Sanford
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Thomas Weber
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | | | - Panshak P. Dakup
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Vanessa L. Paurus
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Kwame Attah
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Herbert M. Sauro
- Department of Bioengineering, University of Washington, Seattle, WA
| | - Wei-Jun Qian
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - H. Steven Wiley
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352 USA
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5
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Estep JA, Sun LO, Riccomagno MM. A luciferase fragment complementation assay to detect focal adhesion kinase (FAK) signaling events. Heliyon 2023; 9:e15282. [PMID: 37089315 PMCID: PMC10119766 DOI: 10.1016/j.heliyon.2023.e15282] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
Integrin Adhesion Complexes (IACs) serve as links between the cytoskeleton and extracellular environment, acting as mechanosensing and signaling hubs. As such, IACs participate in many aspects of cellular motility, tissue morphogenesis, anchorage-dependent growth and cell survival. Focal Adhesion Kinase (FAK) has emerged as a critical organizer of IAC signaling events due to its early recruitment and diverse substrates, and thus has become a genetic and therapeutic target. Here we present the design and characterization of simple, reversible, and scalable Bimolecular Complementation sensors to monitor FAK phosphorylation in living cells. These probes provide novel means to quantify IAC signaling, expanding on the currently available toolkit for interrogating FAK phosphorylation during diverse cellular processes.
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Affiliation(s)
- Jason A. Estep
- Cell, Molecular and Developmental Biology Program, Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA 92521, USA
| | - Lu O. Sun
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Martin M. Riccomagno
- Cell, Molecular and Developmental Biology Program, Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA 92521, USA
- Neuroscience Program, Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA 92521, USA
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Zambarda C, Pérez González C, Schoenit A, Veits N, Schimmer C, Jung R, Ollech D, Christian J, Roca-Cusachs P, Trepat X, Cavalcanti-Adam EA. Epithelial cell cluster size affects force distribution in response to EGF-induced collective contractility. Eur J Cell Biol 2022; 101:151274. [PMID: 36152392 DOI: 10.1016/j.ejcb.2022.151274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 08/08/2022] [Accepted: 09/08/2022] [Indexed: 12/14/2022] Open
Abstract
Several factors present in the extracellular environment regulate epithelial cell adhesion and dynamics. Among them, growth factors such as EGF, upon binding to their receptors at the cell surface, get internalized and directly activate the acto-myosin machinery. In this study we present the effects of EGF on the contractility of epithelial cancer cell colonies in confined geometry of different sizes. We show that the extent to which EGF triggers contractility scales with the cluster size and thus the number of cells. Moreover, the collective contractility results in a radial distribution of traction forces, which are dependent on integrin β1 peripheral adhesions and transmitted to neighboring cells through adherens junctions. Taken together, EGF-induced contractility acts on the mechanical crosstalk and linkage between the cell-cell and cell-matrix compartments, regulating collective responses.
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Affiliation(s)
- Chiara Zambarda
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Carlos Pérez González
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | - Andreas Schoenit
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Nisha Veits
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Clara Schimmer
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Raimund Jung
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Dirk Ollech
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Joel Christian
- Max Planck Institute for Medical Research, Jahnstr. 29, D-69120 Heidelberg, Germany
| | - Pere Roca-Cusachs
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | - Xavier Trepat
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain; University of Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain; Centro de Investigación Biomédica en Red de Bioingeniería (CIBER-BBN), 08028 Barcelona, Spain
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7
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Tan TS, Common JEA, Lim JSY, Badowski C, Firdaus MJ, Leonardi SS, Lane EB. A cell-based drug discovery assay identifies inhibition of cell stress responses as a new approach to treatment of epidermolysis bullosa simplex. J Cell Sci 2021; 134:272475. [PMID: 34643242 PMCID: PMC8542385 DOI: 10.1242/jcs.258409] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 09/07/2021] [Indexed: 11/20/2022] Open
Abstract
In the skin fragility disorder epidermolysis bullosa simplex (EBS), mutations in keratin 14 (K14, also known as KRT14) or keratin 5 (K5, also known as KRT5) lead to keratinocyte rupture and skin blistering. Severe forms of EBS are associated with cytoplasmic protein aggregates, with elevated kinase activation of ERK1 and ERK2 (ERK1/2; also known as MAPK3 and MAPK1, respectively), suggesting intrinsic stress caused by misfolded keratin protein. Human keratinocyte EBS reporter cells stably expressing GFP-tagged EBS-mimetic mutant K14 were used to optimize a semi-automated system to quantify the effects of test compounds on keratin aggregates. Screening of a protein kinase inhibitor library identified several candidates that reduced aggregates and impacted on epidermal growth factor receptor (EGFR) signalling. EGF ligand exposure induced keratin aggregates in EBS reporter keratinocytes, which was reversible by EGFR inhibition. EBS keratinocytes treated with a known EGFR inhibitor, afatinib, were driven out of activation and towards quiescence with minimal cell death. Aggregate reduction was accompanied by denser keratin filament networks with enhanced intercellular cohesion and resilience, which when extrapolated to a whole tissue context would predict reduced epidermal fragility in EBS patients. This assay system provides a powerful tool for discovery and development of new pathway intervention therapeutic avenues for EBS.
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Affiliation(s)
- Tong San Tan
- Skin Research Institute of Singapore, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648.,Institute of Medical Biology, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648
| | - John E A Common
- Skin Research Institute of Singapore, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648.,Institute of Medical Biology, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648
| | - John S Y Lim
- A*STAR Microscopy Platform, Immunos Building, 8A Biomedical Grove, Singapore138648
| | - Cedric Badowski
- Institute of Medical Biology, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648
| | - Muhammad Jasrie Firdaus
- Skin Research Institute of Singapore, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648.,Institute of Medical Biology, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648
| | - Steven S Leonardi
- Skin Research Institute of Singapore, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648
| | - E Birgitte Lane
- Skin Research Institute of Singapore, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648.,Institute of Medical Biology, A*STAR, Immunos Building, 8A Biomedical Grove, Singapore138648
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8
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Su Y, Fu R, Du W, Yang H, Ma L, Luo X, Wang R, Lin X, Jin X, Shan X, Lv W, Huang G. Label-Free and Quantitative Dry Mass Monitoring for Single Cells during In Situ Culture. Cells 2021; 10:cells10071635. [PMID: 34209893 PMCID: PMC8303735 DOI: 10.3390/cells10071635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/19/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022] Open
Abstract
Quantitative measurement of single cells can provide in-depth information about cell morphology and metabolism. However, current live-cell imaging techniques have a lack of quantitative detection ability. Herein, we proposed a label-free and quantitative multichannel wide-field interferometric imaging (MWII) technique with femtogram dry mass sensitivity to monitor single-cell metabolism long-term in situ culture. We demonstrated that MWII could reveal the intrinsic status of cells despite fluctuating culture conditions with 3.48 nm optical path difference sensitivity, 0.97 fg dry mass sensitivity and 2.4% average maximum relative change (maximum change/average) in dry mass. Utilizing the MWII system, different intrinsic cell growth characteristics of dry mass between HeLa cells and Human Cervical Epithelial Cells (HCerEpiC) were studied. The dry mass of HeLa cells consistently increased before the M phase, whereas that of HCerEpiC increased and then decreased. The maximum growth rate of HeLa cells was 11.7% higher than that of HCerEpiC. Furthermore, HeLa cells were treated with Gemcitabine to reveal the relationship between single-cell heterogeneity and chemotherapeutic efficacy. The results show that cells with higher nuclear dry mass and nuclear density standard deviations were more likely to survive the chemotherapy. In conclusion, MWII was presented as a technique for single-cell dry mass quantitative measurement, which had significant potential applications for cell growth dynamics research, cell subtype analysis, cell health characterization, medication guidance and adjuvant drug development.
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9
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Abstract
Intermediate filaments (IFs) are one of the three major elements of the cytoskeleton. Their stability, intrinsic mechanical properties, and cell type-specific expression patterns distinguish them from actin and microtubules. By providing mechanical support, IFs protect cells from external forces and participate in cell adhesion and tissue integrity. IFs form an extensive and elaborate network that connects the cell cortex to intracellular organelles. They act as a molecular scaffold that controls intracellular organization. However, IFs have been revealed as much more than just rigid structures. Their dynamics is regulated by multiple signaling cascades and appears to contribute to signaling events in response to cell stress and to dynamic cellular functions such as mitosis, apoptosis, and migration.
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Affiliation(s)
- Sandrine Etienne-Manneville
- Institut Pasteur Paris, CNRS UMR 3691, Cell Polarity, Migration and Cancer Unit, Equipe Labellisée Ligue Contre le Cancer, Paris Cedex 15, France;
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10
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Cruz R, Pereira-Castro I, Almeida MT, Moreira A, Cabanes D, Sousa S. Epithelial Keratins Modulate cMet Expression and Signaling and Promote InlB-Mediated Listeria monocytogenes Infection of HeLa Cells. Front Cell Infect Microbiol 2018; 8:146. [PMID: 29868502 PMCID: PMC5960701 DOI: 10.3389/fcimb.2018.00146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/20/2018] [Indexed: 12/11/2022] Open
Abstract
The host cytoskeleton is a major target for bacterial pathogens during infection. In particular, pathogens usurp the actin cytoskeleton function to strongly adhere to the host cell surface, to induce plasma membrane remodeling allowing invasion and to spread from cell to cell and disseminate to the whole organism. Keratins are cytoskeletal proteins that are the major components of intermediate filaments in epithelial cells however, their role in bacterial infection has been disregarded. Here we investigate the role of the major epithelial keratins, keratins 8 and 18 (K8 and K18), in the cellular infection by Listeria monocytogenes. We found that K8 and K18 are required for successful InlB/cMet-dependent L. monocytogenes infection, but are dispensable for InlA/E-cadherin-mediated invasion. Both K8 and K18 accumulate at InlB-mediated internalization sites following actin recruitment and modulate actin dynamics at those sites. We also reveal the key role of K8 and K18 in HGF-induced signaling which occurs downstream the activation of cMet. Strikingly, we show here that K18, and at a less extent K8, controls the expression of cMet and other surface receptors such TfR and integrin β1, by promoting the stability of their corresponding transcripts. Together, our results reveal novel functions for major epithelial keratins in the modulation of actin dynamics at the bacterial entry sites and in the control of surface receptors mRNA stability and expression.
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Affiliation(s)
- Rui Cruz
- Group of Molecular Microbiology, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Group of Molecular Microbiology, Institute for Molecular and Cell Biology, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Isabel Pereira-Castro
- Group of Molecular Microbiology, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Gene Regulation Group, Institute for Molecular and Cell Biology, Porto, Portugal
| | - Maria T Almeida
- Group of Molecular Microbiology, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Group of Molecular Microbiology, Institute for Molecular and Cell Biology, Porto, Portugal
| | - Alexandra Moreira
- Group of Molecular Microbiology, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.,Gene Regulation Group, Institute for Molecular and Cell Biology, Porto, Portugal
| | - Didier Cabanes
- Group of Molecular Microbiology, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Group of Molecular Microbiology, Institute for Molecular and Cell Biology, Porto, Portugal
| | - Sandra Sousa
- Group of Molecular Microbiology, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Group of Molecular Microbiology, Institute for Molecular and Cell Biology, Porto, Portugal
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11
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Keller S, Kneissl J, Grabher-Meier V, Heindl S, Hasenauer J, Maier D, Mattes J, Winter P, Luber B. Evaluation of epidermal growth factor receptor signaling effects in gastric cancer cell lines by detailed motility-focused phenotypic characterization linked with molecular analysis. BMC Cancer 2017; 17:845. [PMID: 29237412 PMCID: PMC5729506 DOI: 10.1186/s12885-017-3822-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 11/22/2017] [Indexed: 12/21/2022] Open
Abstract
Background Gastric cancers frequently overexpress the epidermal growth factor receptor (EGFR), which has been implicated in pathological processes including tumor cell motility, invasion and metastasis. Targeting EGFR with the inhibitory antibody cetuximab may affect the motile and invasive behavior of tumor cells. Here, we evaluated the effects of EGFR signaling in gastric cancer cell lines to link the phenotypic behavior of the cells with their molecular characteristics. Methods Phenotypic effects were analyzed in four gastric cancer cell lines (AGS, Hs746T, LMSU and MKN1) by time-lapse microscopy and transwell invasion assay. Effects on EGFR signaling were detected using Western blot and proteome profiler analyses. A network was constructed linking EGFR signaling to the regulation of cellular motility. Results The analysis of the effects of treatment with epidermal growth factor (EGF) and cetuximab revealed that only one cell line (MKN1) was sensitive to cetuximab treatment in all phenotypic assays, whereas the other cell lines were either not responsive (Hs746T, LMSU) or sensitive only in certain tests (AGS). Cetuximab inhibited EGFR, MAPK and AKT activity and associated components of the EGFR signaling pathway to different degrees in cetuximab-sensitive MKN1 cells. In contrast, no such changes were observed in Hs746T cells. Thus, the different phenotypic behaviors of the cells were linked to their molecular response to treatment. Genetic alterations had different associations with response to treatment: while PIK3CA mutations and KRAS mutation or amplification were not obstructive, the MET mutation was associated with non-response. Conclusion These results identify components of the EGFR signaling network as important regulators of the phenotypic and molecular response to cetuximab treatment. Electronic supplementary material The online version of this article (10.1186/s12885-017-3822-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Simone Keller
- Institut für Allgemeine Pathologie und Pathologische Anatomie, Technische Universität München, Klinikum rechts der Isar, Trogerstr. 18, 81675, München, Germany
| | - Julia Kneissl
- Institut für Allgemeine Pathologie und Pathologische Anatomie, Technische Universität München, Klinikum rechts der Isar, Trogerstr. 18, 81675, München, Germany
| | - Verena Grabher-Meier
- Institut für Allgemeine Pathologie und Pathologische Anatomie, Technische Universität München, Klinikum rechts der Isar, Trogerstr. 18, 81675, München, Germany
| | - Stefan Heindl
- Institut für Allgemeine Pathologie und Pathologische Anatomie, Technische Universität München, Klinikum rechts der Isar, Trogerstr. 18, 81675, München, Germany
| | - Jan Hasenauer
- Institute of Computational Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.,Technische Universität München, Center for Mathematics, Chair of Mathematical Modelling of Biological Systems, Boltzmannstraße 3, 85748, Garching, Germany
| | - Dieter Maier
- Biomax Informatics AG, Robert-Koch-Str. 2, 82152, Planegg, Germany
| | - Julian Mattes
- Knowledge-Based Vision Systems, Software Competence Center Hagenberg GmbH, Softwarepark 21, 4232, Hagenberg, Austria.,Present Address: MATTES Medical Imaging GmbH, Softwarepark 21, 4232, Hagenberg, Austria
| | - Peter Winter
- GenXPro GmbH, Altenhöferallee 3, 60438, Frankfurt am Main, Germany
| | - Birgit Luber
- Institut für Allgemeine Pathologie und Pathologische Anatomie, Technische Universität München, Klinikum rechts der Isar, Trogerstr. 18, 81675, München, Germany.
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12
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Odenthal J, Takes R, Friedl P. Plasticity of tumor cell invasion: governance by growth factors and cytokines. Carcinogenesis 2016; 37:1117-1128. [PMID: 27664164 DOI: 10.1093/carcin/bgw098] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/15/2016] [Accepted: 09/22/2016] [Indexed: 01/01/2023] Open
Abstract
Tumor cell migration, the basis for metastatic dissemination, is an adaptive process which depends upon coordinated cell interaction with the environment, influencing cell-matrix and cell-cell adhesion, cytoskeletal dynamics and extracellular matrix remodeling. Growth factors and cytokines, released within the reactive tumor microenvironment and their intracellular effector signals strongly impact mechanocoupling functions in tumor cells and thereby control the mode and extent of tumor invasion, including collective and single-cell migration and their interconversions. Besides their role in controlling tumor cell growth and survival, cytokines and growth factors thus provide complex orchestration of the metastatic cascade and tumor cell adaptation to environmental challenge. We here review the mechanisms by which growth factors and cytokines control the reciprocal interactions between tumor cells and their microenvironment, and the consequences for the efficacy and plasticity of invasion programs and metastasis.
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Affiliation(s)
- Julia Odenthal
- Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands.,Department of Cell Biology, Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, The Netherlands
| | - Robert Takes
- Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands
| | - Peter Friedl
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, The Netherlands, .,Department of Genitourinary Medical Oncology - Research, Houston, TX 77030, USA and.,Cancer Genomics Center, 3584 CG Utrecht, The Netherlands
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13
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Mu W, Wang Q, Bourland WA, Jiang C, Yuan D, Pan X, Miao W, Chen Y, Xiong J. Epidermal growth factor-induced stimulation of proliferation and gene expression changes in the hypotrichous ciliate, Stylonychia lemnae. Gene 2016; 592:186-192. [PMID: 27506312 DOI: 10.1016/j.gene.2016.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 07/21/2016] [Accepted: 08/04/2016] [Indexed: 11/28/2022]
Abstract
Epidermal growth factor (EGF) induces proliferation of epidermal and epithelial tissues in mammals. However, the effect of EGF on the single-celled eukaryotes is not well characterized, especially in the protists. Ciliates, an important group of protists, are well characterized as both pollution indicators and model organisms for research. Stylonychia lemnae, is one of the most common free-living ciliates, widely distributed in ponds, rivers and marshes. Here, we report the role of EGF on cell proliferation stimulation in S. lemnae. The growth curve of S. lemnae was established, and the stimulation effect of EGF on the proliferation of S. lemnae was investigated. Based on the results, potential EGF receptors were identified in S. lemnae according to the conserved domains and gene expression. Differential gene expression revealed that EGF-induced genes in other organisms (e.g. antioxidant) also up-regulated in S. lemnae cells at propagation stages. In addition, our results showed that EGF could up-regulate the signal transduction-related processes in the decline stage of S. lemnae cells, indicating its potential function in apoptosis inhibition. In summary, this study reports findings of the first investigation of EGF effects in hypotrich ciliates, and establishes an additional system for the study of the molecular mechanisms of EGF actions in eukaryotic cell division and proliferation.
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Affiliation(s)
- Weijie Mu
- College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
| | - Qi Wang
- College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - William A Bourland
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
| | - Chuanqi Jiang
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Dongxia Yuan
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Xuming Pan
- College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
| | - Wei Miao
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Ying Chen
- College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
| | - Jie Xiong
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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14
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Huber F, Boire A, López MP, Koenderink GH. Cytoskeletal crosstalk: when three different personalities team up. Curr Opin Cell Biol 2015; 32:39-47. [DOI: 10.1016/j.ceb.2014.10.005] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 10/20/2014] [Accepted: 10/22/2014] [Indexed: 12/29/2022]
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15
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Intermediate filaments and the regulation of focal adhesion. Curr Opin Cell Biol 2014; 32:13-20. [PMID: 25460777 DOI: 10.1016/j.ceb.2014.09.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/25/2014] [Accepted: 09/26/2014] [Indexed: 12/19/2022]
Abstract
Focal adhesions are localized actin filament-anchoring signalling centres at the cell-extracellular matrix interface. The currently emerging view is that they fulfil an all-embracing coordinating function for the entire cytoskeleton. This review highlights the tight relationship between focal adhesions and the intermediate filament cytoskeleton. We summarize the accumulating evidence for direct binding of intermediate filaments to focal adhesion components and their mutual cross-talk through signalling molecules. Examples are presented to emphasize the high degree of complexity of these interactions equipping cells with a precisely controlled machinery for context-dependent adjustment of their biomechanical properties.
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16
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Chung BM, Rotty JD, Coulombe PA. Networking galore: intermediate filaments and cell migration. Curr Opin Cell Biol 2013; 25:600-12. [PMID: 23886476 PMCID: PMC3780586 DOI: 10.1016/j.ceb.2013.06.008] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 06/19/2013] [Accepted: 06/24/2013] [Indexed: 11/22/2022]
Abstract
Intermediate filaments (IFs) are assembled from a diverse group of evolutionarily conserved proteins and are specified in a tissue-dependent, cell type-dependent, and context-dependent fashion in the body. IFs are involved in multiple cellular processes that are crucial for the maintenance of cell and tissue integrity and the response and adaptation to various stresses, as conveyed by the broad array of crippling clinical disorders caused by inherited mutations in IF coding sequences. Accordingly, the expression, assembly, and organization of IFs are tightly regulated. Migration is a fitting example of a cell-based phenomenon in which IFs participate as both effectors and regulators. With a particular focus on vimentin and keratin, we here review how the contributions of IFs to the cell's mechanical properties, to cytoarchitecture and adhesion, and to regulatory pathways collectively exert a significant impact on cell migration.
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Affiliation(s)
- Byung-Min Chung
- Dept. of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Jeremy D. Rotty
- Dept. of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Pierre A. Coulombe
- Dept. of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
- Department of Biological Chemistry, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Department of Dermatology, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
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17
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Snider NT, Park H, Omary MB. A conserved rod domain phosphotyrosine that is targeted by the phosphatase PTP1B promotes keratin 8 protein insolubility and filament organization. J Biol Chem 2013; 288:31329-37. [PMID: 24003221 DOI: 10.1074/jbc.m113.502724] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Post-translational modifications are important functional determinants for intermediate filament (IF) proteins. Phosphorylation of IF proteins regulates filament organization, solubility, and cell-protective functions. Most known IF protein phosphorylation sites are serines localized in the variable "head" and "tail" domain regions. By contrast, little is known about site-specific tyrosine phosphorylation or its implications on IF protein function. We used available proteomic data from large scale studies to narrow down potential phospho-tyrosine sites on the simple epithelial IF protein keratin 8 (K8). Validation of the predicted sites using a pan-phosphotyrosine and a site-specific antibody, which we generated, revealed that the highly conserved Tyr-267 in the K8 "rod" domain was basally phosphorylated. The charge at this site was critically important, as demonstrated by altered filament organization of site-directed mutants, Y267F and Y267D, the latter exhibiting significantly diminished solubility. Pharmacological inhibition of the protein-tyrosine phosphatase PTP1B increased K8 Tyr-267 phosphorylation, decreased solubility, and increased K8 filament bundling, whereas PTP1B overexpression had the opposite effects. Furthermore, there was significant co-localization between K8 and a "substrate-trapping" mutant of PTP1B (D181A). Because K8 Tyr-267 is conserved in many IFs (QYE motif), we tested the effect of the paralogous Tyr in glial fibrillary acidic protein (GFAP), which is mutated in Alexander disease (Y242D). Similar to K8, Y242D GFAP exhibited highly irregular filament organization and diminished solubility. Our results implicate the rod domain QYE motif tyrosine as an important determinant of IF assembly and solubility properties that can be dynamically modulated by phosphorylation.
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Affiliation(s)
- Natasha T Snider
- From the Departments of Molecular and Integrative Physiology and
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18
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Shapira I, Lee A, Vora R, Budman DR. P53 mutations in triple negative breast cancer upregulate endosomal recycling of epidermal growth factor receptor (EGFR) increasing its oncogenic potency. Crit Rev Oncol Hematol 2013; 88:284-92. [PMID: 23755891 DOI: 10.1016/j.critrevonc.2013.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 04/03/2013] [Accepted: 05/02/2013] [Indexed: 01/03/2023] Open
Abstract
There is no available targeted therapy for triple-negative or its more aggressive subtype, basal-like breast cancer. Multiple therapeutic strategies based on translational knowledge have not improved the treatment options for triple negative patients. As understanding of molecular pathways that drive tumor development is rapidly increasing, it is imperative to adapt our treatment strategies to perturbations in molecular pathways driving the malignant process. Basal-like breast cancers over-express EGFR (without mutations or EGFR gene amplifications) and have p53 mutations. While EGFR drives the malignant behavior in triple negative breast cancer (TNBC), anti-EGFR therapies have fallen short of the expected results in clinical trials. Here we bring evidence that the less than optimal results of the anti-EGFR therapies may be explained in part by the increased potency of the EGFR signaling due to increased endosomal recycling. The functional connection between EGFR and endosomal trafficking in TNBC is mutant p53 found in the most aggressive forms of TNBC. Mutant p53 acquires oncogenic functions and binds p63 protein, a member of p53 family with tumor suppressor activities. In the absence of functional p63 there is an upregulation of endosomal recycling EGFR and integrin to the membrane with increased proinvasive abilities of cancer cells. Blocking endosomal trafficking combined with anti-EGFR treatments may result in better clinical outcomes in TNBC.
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Affiliation(s)
- Iuliana Shapira
- Monter Cancer Center, Don Monti Division of Oncology, Division of Hematology, Hofstra North Shore Long Island Jewish School of Medicine, United States.
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