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Linder S, Holmberg M, Agopian-Dahlenmark L, Zhao H, Åkerström JH, Sparrelid E, Ghorbani P. Endoscopic main duct stenting in refractory postoperative pancreatic fistula after distal pancreatectomy - a friend or a foe? BMC Surg 2024; 24:33. [PMID: 38267861 PMCID: PMC10809585 DOI: 10.1186/s12893-023-02233-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/16/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Clinically relevant (CR) postoperative pancreatic fistula (POPF) after distal pancreatectomy (DP) are common. Endoscopic treatment (ET) has only scarcely been explored. The aim of this study was to evaluate risk factors for CR POPF after DP and the efficacy of ET in adjunct to standard therapy. METHODS Consecutive patients without previous pancreatic surgery who underwent DP between 2011 and 2020 were evaluated, analyzing risk factors for CR POPF. The choice and performance of ET, main pancreatic duct (MPD) stenting, was not standardized. Healing time and complications after ET were registered. RESULTS 406 patients underwent DP, CR POPF occurred in 29.6%. ET was performed in 17 patients 27 days (median) after index surgery. Risk for CR POPF was increased in ASA-PS 1-2 patients, MPD ≤ 3 mm, procedure time ≥ 3 h, and CRP ≥ 180 on postoperative day 3. POPF resolved with standard treatment after 32 days and 59 days in the ET group (p < 0.001). There was one mortality in the ET-group (not procedure related). Mild post-ERCP pancreatitis occurred in three patients. CONCLUSIONS CR POPF is common after DP. Long operating time, a narrow MPD, low ASA score, and high postoperative CRP were risk factors for CR POPF. ET was not beneficial but proper evaluation was not possible due to few patients and non-standardized treatment. Complications after ET appeared mild.
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Affiliation(s)
- Stefan Linder
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
- Karolinska University Hospital, Stockholm, Sweden.
| | - Marcus Holmberg
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Surgery, Capio St Görans Hospital, Stockholm, Sweden
| | | | - Helena Zhao
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Johan Hardvik Åkerström
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Karolinska University Hospital, Stockholm, Sweden
- Upper Gastrointestinal Surgery, Department of Molecular medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Ernesto Sparrelid
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Karolinska University Hospital, Stockholm, Sweden
| | - Poya Ghorbani
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Karolinska University Hospital, Stockholm, Sweden
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Hey S, Linder S. Matrix metalloproteinases at a glance. J Cell Sci 2024; 137:jcs261898. [PMID: 38236162 DOI: 10.1242/jcs.261898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024] Open
Abstract
Matrix metalloproteinases (MMPs) are a family of zinc-dependent proteinases that belong to the group of endopeptidases or matrixins. They are able to cleave a plethora of substrates, including components of the extracellular matrix and cell-surface-associated proteins, as well as intracellular targets. Accordingly, MMPs play key roles in a variety of physiological and pathological processes, such as tissue homeostasis and cancer cell invasion. MMP activity is exquisitely regulated at several levels, including pro-domain removal, association with inhibitors, intracellular trafficking and transport via extracellular vesicles. Moreover, the regulation of MMP activity is currently being rediscovered for the development of respective therapies for the treatment of cancer, as well as infectious, inflammatory and neurological diseases. In this Cell Science at a Glance article and the accompanying poster, we present an overview of the current knowledge regarding the regulation of MMP activity, the intra- and extra-cellular trafficking pathways of these enzymes and their diverse groups of target proteins, as well as their impact on health and disease.
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Affiliation(s)
- Sven Hey
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Stefan Linder
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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Linder S, Barcelona B. Get a grip: Podosomes as potential players in phagocytosis. Eur J Cell Biol 2023; 102:151356. [PMID: 37625234 DOI: 10.1016/j.ejcb.2023.151356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/27/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
Abstract
Podosomes have been known for several decades as micron-sized, F-actin-rich structures that play a pivotal role in cell migration and invasion, as they are able to mediate both cell-matrix attachment as well as extracellular matrix degradation. Particularly in monocytic cells, podosomes have been shown to fulfill a variety of additional functions such as sensing of substrate rigidity and topography, or cell-cell fusion. Increasing evidence now points to the involvement of podosome-like structures also during phagocytosis by immune cells such as macrophages, dendritic cells, and neutrophils. Here, we compare the different cell models and experimental set ups where "phagocytic podosomes" have been described. We also discuss the composition and architecture of these structures, their potential involvement in mechanosensing and particle disruption, as well as the pros and cons for addressing them as bona fide podosomes.
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Affiliation(s)
- Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany.
| | - Bryan Barcelona
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
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Hey S, Wiesner C, Barcelona B, Linder S. KIF16B drives MT1-MMP recycling in macrophages and promotes co-invasion of cancer cells. Life Sci Alliance 2023; 6:e202302158. [PMID: 37696580 PMCID: PMC10494930 DOI: 10.26508/lsa.202302158] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023] Open
Abstract
The matrix metalloproteinase MT1-MMP is a central effector of cellular proteolysis. Accordingly, regulation of the surface-localized pool of MT1-MMP is crucial for cell migration and invasion. Here, we identify the superprocessive kinesin KIF16B as a major driver of fast recycling of MT1-MMP to the surface of primary human macrophages. KIF16B associates with MT1-MMP on Rab14-positive vesicles, and its depletion results in strongly reduced MT1-MMP surface levels, as shown by microscopical, biochemical, and cell-sorting approaches. As a consequence, KIF16B-depleted macrophages exhibit strongly reduced matrix degradation and invasion. We further identify the cargo-binding C-terminus of KIF16B as a critical element of MT1-MMP transport, as its overexpression uncouples MT1-MMP vesicles from the endogenous motor, thus leading to a reduction of surface-associated MT1-MMP and to reduced matrix degradation and invasion. Importantly, depletion of KIF16B in primary macrophages also reduces the co-invasion of cancer cells from tumor spheroids, pointing to the KIF16B-driven recycling pathway in macrophages as an important regulatory element of the tumor microenvironment.
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Affiliation(s)
- Sven Hey
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Hamburg, Germany
| | - Christiane Wiesner
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Hamburg, Germany
| | - Bryan Barcelona
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Hamburg, Germany
| | - Stefan Linder
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Hamburg, Germany
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5
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Genduso S, Freytag V, Schetler D, Kirchner L, Schiecke A, Maar H, Wicklein D, Gebauer F, Bröker K, Stürken C, Milde-Langosch K, Oliveira-Ferrer L, Ricklefs FL, Ewald F, Wolters-Eisfeld G, Riecken K, Unrau L, Krause L, Bohnenberger H, Offermann A, Perner S, Sebens S, Lamszus K, Diehl L, Linder S, Jücker M, Schumacher U, Lange T. Tumor cell integrin β4 and tumor stroma E-/P-selectin cooperatively regulate tumor growth in vivo. J Hematol Oncol 2023; 16:23. [PMID: 36932441 PMCID: PMC10022201 DOI: 10.1186/s13045-023-01413-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 02/13/2023] [Indexed: 03/19/2023] Open
Abstract
BACKGROUND The immunological composition of the tumor microenvironment has a decisive influence on the biological course of cancer and is therefore of profound clinical relevance. In this study, we analyzed the cooperative effects of integrin β4 (ITGB4) on tumor cells and E-/P-selectin on endothelial cells within the tumor stroma for regulating tumor growth by shaping the local and systemic immune environment. METHODS We used several preclinical mouse models for different solid human cancer types (xenograft and syngeneic) to explore the role of ITGB4 (shRNA-mediated knockdown in tumor cells) and E-/P-selectins (knockout in mice) for tumor growth; effects on apoptosis, proliferation and intratumoral signaling pathways were determined by histological and biochemical methods and 3D in vitro experiments; changes in the intratumoral and systemic immune cell composition were determined by flow cytometry and immunohistochemistry; chemokine levels and their attracting potential were measured by ELISA and 3D invasion assays. RESULTS We observed a very robust synergism between ITGB4 and E-/P-selectin for the regulation of tumor growth, accompanied by an increased recruitment of CD11b+ Gr-1Hi cells with low granularity (i.e., myeloid-derived suppressor cells, MDSCs) specifically into ITGB4-depleted tumors. ITGB4-depleted tumors undergo apoptosis and actively attract MDSCs, well-known to promote tumor growth in several cancers, via increased secretion of different chemokines. MDSC trafficking into tumors crucially depends on E-/P-selectin expression. Analyses of clinical samples confirmed an inverse relationship between ITGB4 expression in tumors and number of tumor-infiltrating leukocytes. CONCLUSIONS These findings suggest a distinct vulnerability of ITGB4Lo tumors for MDSC-directed immunotherapies.
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Affiliation(s)
- Sandra Genduso
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Vera Freytag
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Daniela Schetler
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Lennart Kirchner
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Alina Schiecke
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Hanna Maar
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Institute of Anatomy I, Cancer Center Central Germany, Jena University Hospital, Teichgraben 7, 07743, Jena, Germany
| | - Daniel Wicklein
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Department of Anatomy and Cell Biology, University of Marburg, Robert-Koch-Strasse 8, 35037, Marburg, Germany
| | - Florian Gebauer
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of General, Visceral and Thoracic Surgery, University Hospital Cologne, Kerpener Strasse 62, 50937, Cologne, Germany
| | - Katharina Bröker
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Christine Stürken
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Faculty of Medicine, MSH Medical School Hamburg, Medical University, 20251, Hamburg, Germany
| | - Karin Milde-Langosch
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Franz L Ricklefs
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Florian Ewald
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerrit Wolters-Eisfeld
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Pediatric Hematology and Oncology, Research Institute Childrens' Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kristoffer Riecken
- Research Department Cell and Gene Therapy, Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ludmilla Unrau
- Institue of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Linda Krause
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hanibal Bohnenberger
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075, Göttingen, Germany
| | - Anne Offermann
- Institute of Pathology, University of Lübeck and University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Sven Perner
- Institute of Pathology, University of Lübeck and University Medical Center Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Susanne Sebens
- Institute for Experimental Cancer Research, Kiel University (CAU) and University Medical Center Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105, Kiel, Germany
| | - Katrin Lamszus
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Linda Diehl
- Institue of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Linder
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Manfred Jücker
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Udo Schumacher
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Medical School Berlin, Leipziger Platz 10, 10117, Berlin, Germany
| | - Tobias Lange
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
- Institute of Anatomy I, Cancer Center Central Germany, Jena University Hospital, Teichgraben 7, 07743, Jena, Germany.
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Abstract
Cell invasion into the surrounding extracellular matrix or across tissue boundaries and endothelial barriers occurs in both physiological and pathological scenarios such as immune surveillance or cancer metastasis. Podosomes and invadopodia, collectively called 'invadosomes', are actin-based structures that drive the proteolytic invasion of cells, by forming highly regulated platforms for the localized release of lytic enzymes that degrade the matrix. Recent advances in high-resolution microscopy techniques, in vivo imaging and high-throughput analyses have led to considerable progress in understanding mechanisms of invadosomes, revealing the intricate inner architecture of these structures, as well as their growing repertoire of functions that extends well beyond matrix degradation. In this Review, we discuss the known functions, architecture and regulatory mechanisms of podosomes and invadopodia. In particular, we describe the molecular mechanisms of localized actin turnover and microtubule-based cargo delivery, with a special focus on matrix-lytic enzymes that enable proteolytic invasion. Finally, we point out topics that should become important in the invadosome field in the future.
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Affiliation(s)
- Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Hamburg, Germany.
| | - Pasquale Cervero
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Robert Eddy
- Department of Pathology, Albert Einstein College of Medicine, New York, NY, USA
| | - John Condeelis
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA.
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Werny L, Grogro A, Bickenbach K, Bülck C, Armbrust F, Koudelka T, Pathak K, Scharfenberg F, Sammel M, Sheikhouny F, Tholey A, Linder S, Becker-Pauly C. MT1-MMP and ADAM10/17 exhibit a remarkable overlap of shedding properties. FEBS J 2023; 290:93-111. [PMID: 35944080 DOI: 10.1111/febs.16586] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 06/20/2022] [Accepted: 07/28/2022] [Indexed: 01/14/2023]
Abstract
Membrane-type-I matrix metalloproteinase (MT1-MMP) is one of six human membrane-bound MMPs and is responsible for extracellular matrix remodelling by degrading several substrates like fibrillar collagens, including types I-III, or fibronectin. Moreover, MT1-MMP was described as a key player in cancer progression and it is involved in various inflammatory processes, as well as in the pathogenesis of Alzheimer's disease (AD). The membrane-tethered metalloprotease meprin β as well as a disintegrin and metalloproteinase 10 (ADAM10) and ADAM17 are also associated with these diseases. Interestingly, meprin β, ADAM10/17 and MT1-MMP also have a shared substrate pool including the interleukin-6 receptor and the amyloid precursor protein. We investigated the interaction of these proteases, focusing on a possible connection between MT1-MMP and meprin β, to elucidate the potential mutual regulations of both enzymes. Herein, we show that besides ADAM10/17, MT1-MMP is also able to shed meprin β from the plasma membrane, leading to the release of soluble meprin β. Mass spectrometry-based cleavage site analysis revealed that the cleavage of meprin β by all three proteases occurs between Pro602 and Ser603 , N-terminal of the EGF-like domain. Furthermore, only inactive human pro-meprin β is shed by MT1-MMP, which is again in accordance with the shedding capability observed for ADAM10/17. Vice versa, meprin β also appears to shed MT1-MMP, indicating a complex regulatory network. Further studies will elucidate this well-orchestrated proteolytic web under distinct conditions in health and disease and will possibly show whether the loss of one of the above-mentioned sheddases can be compensated by the other enzymes.
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Affiliation(s)
- Ludwig Werny
- Institute of Biochemistry, University of Kiel, Germany
| | | | | | - Cynthia Bülck
- Institute of Biochemistry, University of Kiel, Germany
| | - Fred Armbrust
- Institute of Biochemistry, University of Kiel, Germany
| | - Tomas Koudelka
- Institute of Experimental Medicine, AG Proteomics & Bioanalytics, University of Kiel, Germany
| | - Kriti Pathak
- Institute of Biochemistry, University of Kiel, Germany
| | | | - Martin Sammel
- Institute of Biochemistry, University of Kiel, Germany
| | | | - Andreas Tholey
- Institute of Experimental Medicine, AG Proteomics & Bioanalytics, University of Kiel, Germany
| | - Stefan Linder
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
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8
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Wöhner B, Li W, Hey S, Drobny A, Werny L, Becker-Pauly C, Lucius R, Zunke F, Linder S, Arnold P. Proteolysis of CD44 at the cell surface controls a downstream protease network. Front Mol Biosci 2023; 10:1026810. [PMID: 36876041 PMCID: PMC9981664 DOI: 10.3389/fmolb.2023.1026810] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/31/2023] [Indexed: 02/19/2023] Open
Abstract
The cell surface receptor cluster of differentiation 44 (CD44) is the main hyaluronan receptor of the human body. At the cell surface, it can be proteolytically processed by different proteases and was shown to interact with different matrix metalloproteinases. Upon proteolytic processing of CD44 and generation of a C-terminal fragment (CTF), an intracellular domain (ICD) is released after intramembranous cleavage by the γ-secretase complex. This intracellular domain then translocates to the nucleus and induces transcriptional activation of target genes. In the past CD44 was identified as a risk gene for different tumor entities and a switch in CD44 isoform expression towards isoform CD44s associates with epithelial to mesenchymal transition (EMT) and cancer cell invasion. Here, we introduce meprin β as a new sheddase of CD44 and use a CRISPR/Cas9 approach to deplete CD44 and its sheddases ADAM10 and MMP14 in HeLa cells. We here identify a regulatory loop at the transcriptional level between ADAM10, CD44, MMP14 and MMP2. We show that this interplay is not only present in our cell model, but also across different human tissues as deduced from GTEx (Gene Tissue Expression) data. Furthermore, we identify a close relation between CD44 and MMP14 that is also reflected in functional assays for cell proliferation, spheroid formation, migration and adhesion.
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Affiliation(s)
- Birte Wöhner
- Anatomical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Wenjia Li
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sven Hey
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Alice Drobny
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ludwig Werny
- Biochemical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | | | - Ralph Lucius
- Anatomical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Friederike Zunke
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Philipp Arnold
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
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Sauter A, Abu-Omar K, Linder S, Sommer R, Herrmann-Johns A. Resiliente Communities? Eine qualitative Interviewstudie zur
Aufrechterhaltung eines Bewegungsprojektes für Frauen in schwierigen
Lebenslagen (BIG-Projekt) während den ersten beiden Jahren der COVID-19
Pandemie. Das Gesundheitswesen 2022. [DOI: 10.1055/s-0042-1753816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- A Sauter
- Universität Regensburg, Professur für Medizinische
Soziologie, Regensburg, Deutschland
| | - K Abu-Omar
- Friedrich-Alexander-Universität Erlangen-Nürnberg,
Department Sportwissenschaft und Sport, Erlangen, Deutschland
| | - S Linder
- Friedrich-Alexander-Universität Erlangen-Nürnberg,
Department Sportwissenschaft und Sport, Erlangen, Deutschland
| | - R Sommer
- Friedrich-Alexander-Universität Erlangen-Nürnberg,
Department Sportwissenschaft und Sport, Erlangen, Deutschland
| | - A Herrmann-Johns
- Universität Regensburg, Professur für Medizinische
Soziologie, Regensburg, Deutschland
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10
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Stamm J, Weißelberg S, Both A, Failla AV, Nordholt G, Büttner H, Linder S, Aepfelbacher M, Rohde H. Development of an artificial synovial fluid useful for studying Staphylococcus epidermidis joint infections. Front Cell Infect Microbiol 2022; 12:948151. [PMID: 35967857 PMCID: PMC9374174 DOI: 10.3389/fcimb.2022.948151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/04/2022] [Indexed: 11/24/2022] Open
Abstract
Staphylococcus epidermidis is a major causative agent of prosthetic joint infections (PJI). The ability to form biofilms supports this highly selective pathogenic potential. In vitro studies essentially relying on phenotypic assays and genetic approaches have provided a detailed picture of the molecular events contributing to biofilm assembly. A major limitation in these studies is the use of synthetic growth media, which significantly differs from the environmental conditions S. epidermidis encounters during host invasion. Building on evidence showing that growth in serum substantially affects S. epidermidis gene expression profiles and phenotypes, the major aim of this study was to develop and characterize a growth medium mimicking synovial fluid, thereby facilitating research addressing specific aspects related to PJI. Using fresh human plasma, a protocol was established allowing for the large-scale production of a medium that by biochemical analysis matches key characteristics of synovial fluid and therefore is referred to as artificial synovial fluid (ASF). By analysis of biofilm-positive, polysaccharide intercellular adhesion (PIA)-producing S. epidermidis 1457 and its isogenic, PIA- and biofilm-negative mutant 1457-M10, evidence is provided that the presence of ASF induces cluster formation in S. epidermidis 1457 and mutant 1457-M10. Consistent with the aggregative properties, both strains formed multilayered biofilms when analyzed by confocal laser scanning microscopy. In parallel to the phenotypic findings, expression analysis after growth in ASF found upregulation of genes encoding for intercellular adhesins (icaA, aap, and embp) as well as atlE, encoding for the major cell wall autolysin being responsible for eDNA release. In contrast, growth in ASF was associated with reduced expression of the master regulator agr. Collectively, these results indicate that ASF induces expression profiles that are able to support intercellular adhesion in both PIA-positive and PIA-negative S. epidermidis. Given the observation that ASF overall induced biofilm formation in a collection of S. epidermidis isolates from PJI, the results strongly support the idea of using growth media mimicking host environments. ASF may play an important role in future studies related to the pathogenesis of S. epidermidis PJI.
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Affiliation(s)
- Johanna Stamm
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
| | - Samira Weißelberg
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
| | - Anna Both
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
| | | | - Gerhard Nordholt
- Institute for Clinical Chemistry, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Henning Büttner
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
| | - Stefan Linder
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
| | - Martin Aepfelbacher
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
| | - Holger Rohde
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Hamburg, Germany
- Deutsches Zentrum für Infektionsmedizin, Standort Hamburg-Lübeck-Borstel, Hamburg, Germany
- *Correspondence: Holger Rohde,
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11
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Holmberg M, Linder S, Kordes M, Liljefors M, Ghorbani P, Löhr JM, Sparrelid E. Impact of spatio-temporal recurrence pattern on overall survival for invasive intraductal papillary mucinous neoplasia - A comparison with pancreatic ductal adenocarcinoma. Pancreatology 2022; 22:598-607. [PMID: 35501218 DOI: 10.1016/j.pan.2022.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND Resections for intraductal papillary mucinous neoplasia (IPMN) have increased dramatically during the last decade. Recurrence pattern and impact of adjuvant chemotherapy for solid pancreatic ductal adenocarcinoma (PDAC) is well known, but not for invasive IPMN (inv-IPMN). OBJECTIVES To elucidate the impact of spatio-temporal recurrence pattern and adjuvant chemotherapy on overall survival for inv-IPMN compared with PDAC. METHODS We conducted a retrospective single-center observational study of consecutive patients ≥18 years of age who underwent resection for inv-IPMN or PDAC at Karolinska University Hospital, between 2009 and 2018. Different initial recurrence sites and time frames as well as predictors for death were assessed with multivariable Cox and logistic regressions. Survival analyses were performed using the Kaplan-Meier model and log rank test. RESULTS Of 396 resected patients, 92 were inv-IPMN and 304 PDAC. Both recurrence rate and death rate within three-years were lower for inv-IPMN compared to PDAC (p = 0.006 and p = 0.007 respectively). Across the whole cohort, the most common recurrence patterns were multi-site (25%), single-site liver (21%) and single-site locoregional (10%) recurrence. The most prominent predictors for death in multivariable Cox regression, especially if occurred within the first year, were multi-site (HR 17.0), single-site peritoneal (HR 13.6) and single-site liver (HR 13.1) recurrence. These predictors were less common in inv-IPMN compared to PDAC (p = 0.007). The effect of adjuvant chemotherapy was similar in the two groups. CONCLUSION Resected inv-IPMN exhibits a less aggressive recurrence pattern than PDAC that translates into a more favorable overall survival.
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Affiliation(s)
- Marcus Holmberg
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden.
| | - Stefan Linder
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
| | - Maximilian Kordes
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
| | - Maria Liljefors
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
| | - Poya Ghorbani
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
| | - J-Matthias Löhr
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
| | - Ernesto Sparrelid
- Division of Upper Gastrointestinal Diseases, Karolinska University Hospital, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
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12
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Linder S, Holmberg M, Engstrand J, Ghorbani P, Sparrelid E. Prognostic impact of para-aortic lymph node status in resected pancreatic ductal adenocarcinoma and invasive intraductal papillary mucinous neoplasm - Time to consider a reclassification? Surg Oncol 2022; 41:101735. [PMID: 35287096 DOI: 10.1016/j.suronc.2022.101735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/10/2022] [Accepted: 03/01/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Para-aortic lymph node (PALN) metastases in pancreatic ductal adenocarcinoma (PDAC) correlates with poor prognosis. The role of PALN in invasive intraductal papillary mucinous neoplasms (inv-IPMN) has not been well explored. The present study investigated the rate of metastatic PALN, lymph node ratio (LNR) and the overall nodal (N) status as prognostic factors in PDAC and inv-IPMN. METHODS This consecutive single-center series included patients with PDAC or inv-IPMN in the pancreatic head who underwent pancreatoduodenectomy or total pancreatectomy, including PALN resection between 2009 and 2018. Median overall survival (mOS) and impact of clinicopathological factors, including PALN status on survival, were evaluated. RESULTS 403 patients were included, 314 had PDAC and 89 inv-IPMN. PALN were metastatic in 16% of PDAC and 17% of inv-IPMN. N0 status was present in 6% of the patients with PDAC and 16% of inv-IPMN patients (p = 0.007). LNR >15% was more common in PDAC (52%) than in inv-IPMN (34%) (p = 0.004). mOS was 12.7 months in the presence of PALN metastases and 22.7 months without (p < 0.0001). Age >70 years, CA19-9 >200 U/mL, PDAC and N2 status were significantly associated with worse survival in a multivariable analysis. PALN status and LNR were not independent prognostic factors. In N2 status mOS was similar regardless the presence of PALN metastases. CONCLUSION The frequency of PALN metastases was similar in PDAC and inv-IPMN. Although PALN positive status entailed a shorter mOS, it was not an independent risk factor for death, and did not influence survival in N2-staged disease. The M1-status for PALN positivity may need reconsideration.
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Affiliation(s)
- Stefan Linder
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, 141 86, Stockholm, Sweden.
| | - Marcus Holmberg
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, 141 86, Stockholm, Sweden.
| | - Jennie Engstrand
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, 141 86, Stockholm, Sweden.
| | - Poya Ghorbani
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, 141 86, Stockholm, Sweden.
| | - Ernesto Sparrelid
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, 141 86, Stockholm, Sweden.
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13
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Weber K, Hey S, Cervero P, Linder S. The circle of life: Phases of podosome formation, turnover and reemergence. Eur J Cell Biol 2022; 101:151218. [PMID: 35334303 DOI: 10.1016/j.ejcb.2022.151218] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 01/06/2023] Open
Abstract
Podosomes are highly dynamic actin-rich structures in a variety of cell types, especially monocytic cells. They fulfill multiple functions such as adhesion, mechanosensing, or extracellular matrix degradation, thus allowing cells to detect and respond to a changing environment. These abilities are based on an intricate architecture that enables podosomes to sense mechanical properties of their substratum and to transduce them intracellularly in order to generate an appropriate cellular response. These processes are enabled through the tightly orchestrated interplay of more than 300 different components that are dynamically recruited during podosome formation and turnover. In this review, we discuss the different phases of the podosome life cycle and the current knowledge on regulatory factors that impact on the genesis, activity, dissolution and reemergence of podosomes. We also highlight mechanoregulatory processes that become important during these different stages, on the level of individual podosomes, and also at podosome sub- and superstructures.
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Affiliation(s)
- Kathrin Weber
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Sven Hey
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Pasquale Cervero
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany.
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14
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Hey S, Ratt A, Linder S. There and back again: Intracellular trafficking, release and recycling of matrix metalloproteinases. Biochim Biophys Acta Mol Cell Res 2022; 1869:119189. [PMID: 34973301 DOI: 10.1016/j.bbamcr.2021.119189] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 12/26/2022]
Abstract
Matrix metalloproteinases are a family of zinc-dependent endopeptidases that are involved in a large variety of proteolytic processes in physiological and pathological scenarios, including immune cell surveillance, tissue homeostasis, or tumor cell metastasis. This is based on their ability to cleave a plethora of substrates that include components of the extracellular matrix, but also cell surface-associated and intracellular proteins. Accordingly, a tight regulatory web has evolved that closely regulates spatiotemporal activity of specific MMPs. An often underappreciated mechanism of MMP regulation involves their trafficking to and from specific subcellular sites that require MMP activity only for a certain period. In this review, we focus on the current knowledge of MMP intracellular trafficking, their secretion or surface exposure, as well as their recycling back from the cell surface. We discuss molecular mechanisms that enable these steps, in particular microtubule-dependent motility of vesicles that is driven by molecular motors and directed by vesicle regulatory proteins. Finally, we also point out open questions in the field of MMP motility that may become important in the future.
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Affiliation(s)
- Sven Hey
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Artur Ratt
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany.
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15
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Cervero P, Vrenken K, Klose M, Rehm K, Linder S. Nectin stabilization at adherens junctions is counteracted by Rab5a-dependent endocytosis. Eur J Cell Biol 2021; 100:151184. [PMID: 34826799 DOI: 10.1016/j.ejcb.2021.151184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 11/19/2022] Open
Abstract
Cell-cell junctions undergo constant remodeling, which is crucial for the control of vascular integrity. Indeed, transport of junctional components such as cadherins is understood in increasing depth. However, little is known about the respective pathways regulating localization of nectin at cell-cell junctions. Here, we performed an siRNA-based screen of vesicle regulators of the RabGTPase family, leading to the identification of a novel role for Rab5a in the endocytosis nectin-2 at adherens junctions of primary human endothelial cells (HUVEC). Confocal microscopy experiments revealed disordered nectin-2 localization at adherens junctions upon Rab5a depletion. In addition, internalized nectin-2 was shown to prominently localize to Rab5a-positive vesicles in both fixed and living cells. As shown previously, nectin-2 stabilization at junctions is achieved via drebrin-dependent coupling to the subcortical actin cytoskeleton. Consistently, depletion of drebrin in this study leads to enhanced internalization of nectin-2 from junctions. Strikingly, simultaneous silencing of Rab5a and drebrin restored the junctional localization of nectin-2, pointing to Rab5a as counteracting the drebrin-dependent stabilization of nectin-2 at adherens junctions. This mechanism could be further validated by transendothelial resistance measurements. Collectively, our results identify Rab5a as a key player in the endocytosis of nectin-2 and thus in the regulation of adherens junction integrity in primary human endothelial cells.
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Affiliation(s)
- Pasquale Cervero
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Kirsten Vrenken
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany; Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, P.O.Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Matthias Klose
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Kerstin Rehm
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.
| | - Stefan Linder
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.
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16
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Moreno-Layseca P, Jäntti NZ, Godbole R, Sommer C, Jacquemet G, Al-Akhrass H, Conway JRW, Kronqvist P, Kallionpää RE, Oliveira-Ferrer L, Cervero P, Linder S, Aepfelbacher M, Zauber H, Rae J, Parton RG, Disanza A, Scita G, Mayor S, Selbach M, Veltel S, Ivaska J. Cargo-specific recruitment in clathrin- and dynamin-independent endocytosis. Nat Cell Biol 2021; 23:1073-1084. [PMID: 34616024 DOI: 10.1038/s41556-021-00767-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 09/01/2021] [Indexed: 12/12/2022]
Abstract
Spatially controlled, cargo-specific endocytosis is essential for development, tissue homeostasis and cancer invasion. Unlike cargo-specific clathrin-mediated endocytosis, the clathrin- and dynamin-independent endocytic pathway (CLIC-GEEC, CG pathway) is considered a bulk internalization route for the fluid phase, glycosylated membrane proteins and lipids. While the core molecular players of CG-endocytosis have been recently defined, evidence of cargo-specific adaptors or selective uptake of proteins for the pathway are lacking. Here we identify the actin-binding protein Swiprosin-1 (Swip1, EFHD2) as a cargo-specific adaptor for CG-endocytosis. Swip1 couples active Rab21-associated integrins with key components of the CG-endocytic machinery-Arf1, IRSp53 and actin-and is critical for integrin endocytosis. Through this function, Swip1 supports integrin-dependent cancer-cell migration and invasion, and is a negative prognostic marker in breast cancer. Our results demonstrate a previously unknown cargo selectivity for the CG pathway and a role for specific adaptors in recruitment into this endocytic route.
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Affiliation(s)
- Paulina Moreno-Layseca
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Niklas Z Jäntti
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Rashmi Godbole
- National Centre for Biological Science (TIFR), Bangalore, India.,The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bangalore, India
| | - Christian Sommer
- Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany
| | - Guillaume Jacquemet
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Hussein Al-Akhrass
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - James R W Conway
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Pauliina Kronqvist
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Roosa E Kallionpää
- Auria Biobank, Turku University Hospital and University of Turku, Turku, Finland
| | | | - Pasquale Cervero
- University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Stefan Linder
- University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | | | - Henrik Zauber
- Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany
| | - James Rae
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
| | - Robert G Parton
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia.,Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, Queensland, Australia
| | - Andrea Disanza
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare and University of Milan, Milan, Italy
| | - Giorgio Scita
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare and University of Milan, Milan, Italy
| | - Satyajit Mayor
- National Centre for Biological Science (TIFR), Bangalore, India
| | - Matthias Selbach
- Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany
| | - Stefan Veltel
- University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany. .,Hochschule Bremen, City University of Applied Sciences, Bremen, Germany.
| | - Johanna Ivaska
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland. .,Department of Life Sciences, University of Turku, Turku, Finland. .,InFLAMES Research Flagship Center, University of Turku, Turku, Finland.
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17
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Woitzik P, Linder S. Molecular Mechanisms of Borrelia burgdorferi Phagocytosis and Intracellular Processing by Human Macrophages. Biology (Basel) 2021; 10:567. [PMID: 34206480 PMCID: PMC8301104 DOI: 10.3390/biology10070567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/16/2021] [Accepted: 06/20/2021] [Indexed: 12/21/2022]
Abstract
Lyme disease is the most common vector-borne illness in North America and Europe. Its causative agents are spirochetes of the Borrelia burgdorferi sensu latu complex. Infection with borreliae can manifest in different tissues, most commonly in the skin and joints, but in severe cases also in the nervous systems and the heart. The immune response of the host is a crucial factor for preventing the development or progression of Lyme disease. Macrophages are part of the innate immune system and thus one of the first cells to encounter infecting borreliae. As professional phagocytes, they are capable of recognition, uptake, intracellular processing and final elimination of borreliae. This sequence of events involves the initial capture and internalization by actin-rich cellular protrusions, filopodia and coiling pseudopods. Uptake into phagosomes is followed by compaction of the elongated spirochetes and degradation in mature phagolysosomes. In this review, we discuss the current knowledge about the processes and molecular mechanisms involved in recognition, capturing, uptake and intracellular processing of Borrelia by human macrophages. Moreover, we highlight interactions between macrophages and other cells of the immune system during these processes and point out open questions in the intracellular processing of borreliae, which include potential escape strategies of Borrelia.
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Affiliation(s)
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany;
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18
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Pacheco-Fernandez N, Pakdel M, Blank B, Sanchez-Gonzalez I, Weber K, Tran ML, Hecht TKH, Gautsch R, Beck G, Perez F, Hausser A, Linder S, von Blume J. Nucleobindin-1 regulates ECM degradation by promoting intra-Golgi trafficking of MMPs. J Cell Biol 2021; 219:151825. [PMID: 32479594 PMCID: PMC7401813 DOI: 10.1083/jcb.201907058] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 12/29/2019] [Accepted: 05/04/2020] [Indexed: 12/14/2022] Open
Abstract
Matrix metalloproteinases (MMPs) degrade several ECM components and are crucial modulators of cell invasion and tissue organization. Although much has been reported about their function in remodeling ECM in health and disease, their trafficking across the Golgi apparatus remains poorly understood. Here we report that the cis-Golgi protein nucleobindin-1 (NUCB1) is critical for MMP2 and MT1-MMP trafficking along the Golgi apparatus. This process is Ca2+-dependent and is required for invasive MDA-MB-231 cell migration as well as for gelatin degradation in primary human macrophages. Our findings emphasize the importance of NUCB1 as an essential component of MMP transport and its overall impact on ECM remodeling.
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Affiliation(s)
| | | | - Birgit Blank
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT
| | | | - Kathrin Weber
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Hamburg, Hamburg, Germany
| | - Mai Ly Tran
- Max Planck Institute of Biochemistry, Martinsried, Germany.,Department of Cell Biology, Yale University School of Medicine, New Haven, CT
| | - Tobias Karl-Heinz Hecht
- Max Planck Institute of Biochemistry, Martinsried, Germany.,Department of Cell Biology, Yale University School of Medicine, New Haven, CT
| | - Renate Gautsch
- Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Gisela Beck
- Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Franck Perez
- Institute Curie, PSL Research University, Centre National de la Recherche Scientifique, UMR 144, Paris, France
| | - Angelika Hausser
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
| | - Stefan Linder
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Hamburg, Hamburg, Germany
| | - Julia von Blume
- Max Planck Institute of Biochemistry, Martinsried, Germany.,Department of Cell Biology, Yale University School of Medicine, New Haven, CT
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19
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Klose M, Scheungrab M, Luckner M, Wanner G, Linder S. FIB-SEM-based analysis of Borrelia intracellular processing by human macrophages. J Cell Sci 2021; 134:jcs252320. [PMID: 33380490 DOI: 10.1242/jcs.252320] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 12/15/2020] [Indexed: 01/04/2023] Open
Abstract
Borrelia burgdorferi is the causative agent of Lyme disease, a multisystemic disorder affecting primarily skin, joints and nervous system. Successful internalization and intracellular processing of borreliae by immune cells, like macrophages, is decisive for the outcome of a respective infection. Here, we use, for the first time, focused ion beam scanning electron microscopy tomography (FIB-SEM tomography) to visualize the interaction of borreliae with primary human macrophages with high resolution. We report that interaction between macrophages and the elongated and highly motile borreliae can lead to formation of membrane tunnels that extend deeper into the host cytoplasm than the actual phagosome, most probably as a result of partial extrication of captured borreliae. We also show that membrane tubulation at borreliae-containing phagosomes, a process suggested earlier as a mechanism leading to phagosome compaction but hard to visualize in live-cell imaging, is apparently a frequent phenomenon. Finally, we demonstrate that the endoplasmic reticulum (ER) forms multiple STIM1-positive contact sites with both membrane tunnels and phagosome tubulations, confirming the important role of the ER during uptake and intracellular processing of borreliae.
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Affiliation(s)
- Matthias Klose
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | | | - Manja Luckner
- Biozentrum der Ludwig-Maximilians-Universität, 82152 Planegg-Martinsried, Germany
| | - Gerhard Wanner
- Biozentrum der Ludwig-Maximilians-Universität, 82152 Planegg-Martinsried, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
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20
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Herzog R, van den Dries K, Cervero P, Linder S. Poji: a Fiji-based tool for analysis of podosomes and associated proteins. J Cell Sci 2020; 133:jcs238964. [PMID: 32152182 DOI: 10.1242/jcs.238964] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 02/27/2020] [Indexed: 12/15/2022] Open
Abstract
Podosomes are actin-based adhesion and invasion structures in a variety of cell types, with podosome-forming cells displaying up to several hundreds of these structures. Podosome number, distribution and composition can be affected by experimental treatments or during regular turnover, necessitating a tool that is able to detect even subtle differences in podosomal properties. Here, we present a Fiji-based macro code termed 'Poji' ('podosome analysis by Fiji'), which serves as an easy-to-use tool to characterize a variety of cellular and podosomal parameters, including area, fluorescence intensity, relative enrichment of associated proteins and radial podosome intensity profiles. This tool should be useful to gain more detailed insight into the regulation, architecture and functions of podosomes. Moreover, we show that Poji is easily adaptable for the analysis of invadopodia and associated extracellular matrix degradation, and likely also of other micron-size punctate structures. This article describes the workflow of the Poji macro, presents several examples of its applications, and also points out limitations, as well as respective solutions, and adaptable features to streamline the analysis.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Robert Herzog
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Koen van den Dries
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, 6525 GA Nijmegen, The Netherlands
| | - Pasquale Cervero
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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21
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van den Dries K, Linder S, Maridonneau-Parini I, Poincloux R. Probing the mechanical landscape – new insights into podosome architecture and mechanics. J Cell Sci 2019; 132:132/24/jcs236828. [DOI: 10.1242/jcs.236828] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
ABSTRACT
Podosomes are dynamic adhesion structures formed constitutively by macrophages, dendritic cells and osteoclasts and transiently in a wide variety of cells, such as endothelial cells and megakaryocytes. They mediate numerous functions, including cell–matrix adhesion, extracellular matrix degradation, mechanosensing and cell migration. Podosomes present as micron-sized F-actin cores surrounded by an adhesive ring of integrins and integrin–actin linkers, such as talin and vinculin. In this Review, we highlight recent research that has considerably advanced our understanding of the complex architecture–function relationship of podosomes by demonstrating that the podosome ring actually consists of discontinuous nano-clusters and that the actin network in between podosomes comprises two subsets of unbranched actin filaments, lateral and dorsal podosome-connecting filaments. These lateral and dorsal podosome-connecting filaments connect the core and ring of individual podosomes and adjacent podosomes, respectively. We also highlight recent insights into the podosome cap as a novel regulatory module of actomyosin-based contractility. We propose that these newly identified features are instrumental for the ability of podosomes to generate protrusion forces and to mechanically probe their environment. Furthermore, these new results point to an increasing complexity of podosome architecture and have led to our current view of podosomes as autonomous force generators that drive cell migration.
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Affiliation(s)
- Koen van den Dries
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein 26-28, 6525 GA, Nijmegen, The Netherlands
| | - Stefan Linder
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Isabelle Maridonneau-Parini
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UMR5089, 205 route de Narbonne, BP64182 31077 Toulouse, France
| | - Renaud Poincloux
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UMR5089, 205 route de Narbonne, BP64182 31077 Toulouse, France
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Zor U, Linder S, Endenich C. CEO Characteristics and Budgeting Practices in Emerging Market SMEs*. Journal of Small Business Management 2019. [DOI: 10.1111/jsbm.12438] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sammel M, Peters F, Lokau J, Scharfenberg F, Werny L, Linder S, Garbers C, Rose-John S, Becker-Pauly C. Differences in Shedding of the Interleukin-11 Receptor by the Proteases ADAM9, ADAM10, ADAM17, Meprin α, Meprin β and MT1-MMP. Int J Mol Sci 2019; 20:ijms20153677. [PMID: 31357561 PMCID: PMC6696353 DOI: 10.3390/ijms20153677] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/18/2019] [Accepted: 07/25/2019] [Indexed: 12/20/2022] Open
Abstract
Interleukin-11 (IL-11) has been associated with inflammatory conditions, bone homeostasis, hematopoiesis, and fertility. So far, these functions have been linked to classical IL-11 signaling via the membrane bound receptor (IL-11R). However, a signaling cascade via the soluble IL-11R (sIL-11R), generated by proteolytic cleavage, can also be induced. This process is called IL-11 trans-signaling. A disintegrin and metalloprotease 10 (ADAM10) and neutrophil elastase were described as ectodomain sheddases of the IL-11R, thereby inducing trans-signaling. Furthermore, previous studies employing approaches for the stimulation and inhibition of endogenous ADAM-proteases indicated that ADAM10, but not ADAM17, can cleave the IL-11R. Herein, we show that several metalloproteases, namely ADAM9, ADAM10, ADAM17, meprin β, and membrane-type 1 matrix metalloprotease/matrix metalloprotease-14 (MT1-MMP/MMP-14) when overexpressed are able to shed the IL-11R. All sIL-11R ectodomains were biologically active and capable of inducing signal transducer and activator of transcription 3 (STAT3) phosphorylation in target cells. The difference observed for ADAM10/17 specificity compared to previous studies can be explained by the different approaches used, such as stimulation of protease activity or making use of cells with genetically deleted enzymes.
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Affiliation(s)
- Martin Sammel
- Institute of Biochemistry, University of Kiel, Otto-Hahn-Platz 9, 24118 Kiel, Germany
| | - Florian Peters
- Institute of Biochemistry, University of Kiel, Otto-Hahn-Platz 9, 24118 Kiel, Germany
| | - Juliane Lokau
- Institute of Pathology, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Franka Scharfenberg
- Institute of Biochemistry, University of Kiel, Otto-Hahn-Platz 9, 24118 Kiel, Germany
| | - Ludwig Werny
- Institute of Biochemistry, University of Kiel, Otto-Hahn-Platz 9, 24118 Kiel, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246, Hamburg, Germany
| | - Christoph Garbers
- Institute of Pathology, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Stefan Rose-John
- Institute of Biochemistry, University of Kiel, Otto-Hahn-Platz 9, 24118 Kiel, Germany
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Klose M, Salloum JE, Gonschior H, Linder S. SNX3 drives maturation of Borrelia phagosomes by forming a hub for PI(3)P, Rab5a, and galectin-9. J Cell Biol 2019; 218:3039-3059. [PMID: 31337623 PMCID: PMC6719455 DOI: 10.1083/jcb.201812106] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 05/06/2019] [Accepted: 06/19/2019] [Indexed: 12/17/2022] Open
Abstract
Borrelia burgdorferi is the causative agent of Lyme disease. Klose et al. show that SNX3 drives processing of internalized B. burgdorferi by binding PI(3)P on the phagosome surface and recruiting galectin-9 vesicles, thus forming a convergence point for the endosomal recycling machinery during processing of spirochetes. The spirochete Borrelia burgdorferi, the causative agent of Lyme disease, is internalized by macrophages and processed in phagolysosomes. Phagosomal compaction, a crucial step in phagolysosome maturation, is driven by contact of Rab5a-positive vesicles with the phagosomal coat. We show that the sorting nexin SNX3 is transported with Rab5a vesicles and that its PX domain enables vesicle–phagosome contact by binding to PI(3)P in the phagosomal coat. Moreover, the C-terminal region of SNX3 recruits galectin-9, a lectin implicated in protein and membrane recycling, which we identify as a further regulator of phagosome compaction. SNX3 thus forms a hub for two distinct vesicle populations, constituting a convergence point for the endosomal recycling machinery, to contribute to phagosome maturation and intracellular processing of borreliae. These data also suggest that the helical shape of B. burgdorferi itself, providing sites of high curvature and thus local PI(3)P enrichment at phagosomes, may be one of the driving elements underlying the efficient elimination of spirochetes by immune cells.
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Affiliation(s)
- Matthias Klose
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Johann E Salloum
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | | | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
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Abstract
Purpose de Garengeot’s hernia is a rare entity in which the appendix is located within a femoral hernia and is almost invariably encountered incarcerated in an emergency setting with concomitant appendicitis. In the literature, there are mostly single-case reports. The purpose of the present study was to perform a review of the literature to study the incidence, pathogenesis, demographics, clinical presentation, laboratory and radiological investigations, differential diagnosis, delay in diagnosis and treatment, operative findings, surgical technique, histological findings, the postoperative course, use of antibiotics, and complications regarding de Garengeot’s hernia. Methods A literature search was performed through PubMed with the following search terms, single or in combination: Garengeot, femoral hernia, and appendicitis. Additional references were also found within the articles, and two patients from Uppsala University Hospital were added. Results Between 1981 and 2016, 70 publications were identified, and with the additional two patients, the present series comprised 90 patients There were 75 women (median age 73.0 years) and 15 men (median age 78.0 years). On examination, an inguinal mass was found in 87 patients (97%), which was painful and the cause of primary complaint in 67 patients (74%): the median duration of symptoms was 3 days. Radiological investigations or ultrasound were performed in 67 patients (74%); computed tomography was the most accurate with a positive diagnosis in 23/34 patients. Appendicitis was found in 76 patients, gangrenous in 23, and perforated in 9. The surgical approach was inguinal in 76 patients, including 15 with concomitant laparotomy. The preperitoneal route was chosen in six patients, and laparoscopy alone in four patients. A mesh/plug was used in 22 patients (7/22 normal appendix) and suture repair in 59 (4/59 normal appendix: p < 0.01). Complications were analysed in 79 patients and occurred in 11%. There was no mortality. Conclusions de Garengeot’s hernia is rare, being indistinguishable from an incarcerated femoral hernia in general. A delay in surgery should be avoided but if needed, computed tomography may be used for differential diagnosis. Although there is no standard treatment, mesh material does not appear advisable in the presence of a perforation, and it is beneficial for the surgeons to perform their routine method rather than a specific technique.
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Affiliation(s)
- S Linder
- Department of Surgical Sciences, Uppsala University, 75185, Uppsala, Sweden
| | - G Linder
- Department of Surgical Sciences, Uppsala University, 75185, Uppsala, Sweden
| | - C Månsson
- Department of Surgical Sciences, Uppsala University, 75185, Uppsala, Sweden.
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Cabron AS, El Azzouzi K, Boss M, Arnold P, Schwarz J, Rosas M, Dobert JP, Pavlenko E, Schumacher N, Renné T, Taylor PR, Linder S, Rose-John S, Zunke F. Structural and Functional Analyses of the Shedding Protease ADAM17 in HoxB8-Immortalized Macrophages and Dendritic-like Cells. J Immunol 2018; 201:3106-3118. [PMID: 30355783 PMCID: PMC6215251 DOI: 10.4049/jimmunol.1701556] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 09/16/2018] [Indexed: 01/19/2023]
Abstract
A disintegrin and metalloproteinase (ADAM) 17 has been implicated in many shedding processes. Major substrates of ADAM17 are TNF-α, IL-6R, and ligands of the epidermal growth factor receptor. The essential role of the protease is emphasized by the fact that ADAM17 deficiency is lethal in mice. To study ADAM17 function in vivo, we generated viable hypomorphic ADAM17 mice called ADAM17ex/ex mice. Recent studies indicated regulation of proteolytic ADAM17 activity by cellular processes such as cytoplasmic phosphorylation and removal of the prodomain by furin cleavage. Maturation and thus activation of ADAM17 is not fully understood. So far, studies of ADAM17 maturation have been mainly limited to mouse embryonic fibroblasts or transfected cell lines relying on nonphysiologic stimuli such as phorbol esters, thus making interpretation of the results difficult in a physiologic context. In this article, we present a robust cell system to study ADAM17 maturation and function in primary cells of the immune system. To this end, HoxB8 conditionally immortalized macrophage precursor cell lines were derived from bone marrow of wild-type and hypomorphic ADAM17ex/ex mice, which are devoid of measurable ADAM17 activity. ADAM17 mutants were stably expressed in macrophage precursor cells, differentiated to macrophages under different growth factor conditions (M-CSF versus GM-CSF), and analyzed for cellular localization, proteolytic activity, and podosome disassembly. Our study reveals maturation and activity of ADAM17 in a more physiological-immune cell system. We show that this cell system can be further exploited for genetic modifications of ADAM17 and for studying its function in immune cells.
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Affiliation(s)
- Anne-Sophie Cabron
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Karim El Azzouzi
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Melanie Boss
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Philipp Arnold
- Institute of Anatomy, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Jeanette Schwarz
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Marcela Rosas
- Division of Infection and Immunity, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF10 3AT, United Kingdom
| | - Jan Philipp Dobert
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Egor Pavlenko
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Neele Schumacher
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Thomas Renné
- Department of Molecular Medicine and Surgery, Karolinska Institutet and University Hospital, Solna, SE-171 76 Stockholm, Sweden; and
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Philip R Taylor
- Division of Infection and Immunity, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF10 3AT, United Kingdom
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
| | - Friederike Zunke
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
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Prekovic S, van den Broeck T, Linder S, van Royen ME, Houtsmuller AB, Handle F, Joniau S, Zwart W, Claessens F. Molecular underpinnings of enzalutamide resistance. Endocr Relat Cancer 2018; 25:R545–R557. [PMID: 30306781 DOI: 10.1530/erc-17-0136] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Prostate cancer (PCa) is among the most common adult malignancies, and the second leading cause of cancer-related death in men. As PCa is hormone dependent, blockade of the androgen receptor (AR) signaling is an effective therapeutic strategy for men with advanced metastatic disease. The discovery of enzalutamide, a compound that effectively blocks the AR axis and its clinical application has led to a significant improvement in survival time. However, the effect of enzalutamide is not permanent, and resistance to treatment ultimately leads to development of lethal disease, for which there currently is no cure. This review will focus on the molecular underpinnings of enzalutamide resistance, bridging the gap between the preclinical and clinical research on novel therapeutic strategies for combating this lethal stage of prostate cancer.
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Affiliation(s)
- S Prekovic
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - T van den Broeck
- Laboratory of Molecular Endocrinology, KU Leuven, Leuven, Belgium
- Department of Urology, University Hospitals Leuven, Leuven, Belgium
| | - S Linder
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - M E van Royen
- Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
- Erasmus Optical Imaging Centre, Erasmus MC, Rotterdam, The Netherlands
| | - A B Houtsmuller
- Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
- Erasmus Optical Imaging Centre, Erasmus MC, Rotterdam, The Netherlands
| | - F Handle
- Laboratory of Molecular Endocrinology, KU Leuven, Leuven, Belgium
| | - S Joniau
- Department of Urology, University Hospitals Leuven, Leuven, Belgium
| | - W Zwart
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Biomedical Engineering, Laboratory of Chemical Biology and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - F Claessens
- Laboratory of Molecular Endocrinology, KU Leuven, Leuven, Belgium
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Planchon D, Rios Morris E, Genest M, Comunale F, Vacher S, Bièche I, Denisov EV, Tashireva LA, Perelmuter VM, Linder S, Chavrier P, Bodin S, Gauthier-Rouvière C. MT1-MMP targeting to endolysosomes is mediated by upregulation of flotillins. J Cell Sci 2018; 131:jcs.218925. [PMID: 30111578 DOI: 10.1242/jcs.218925] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/21/2018] [Indexed: 12/31/2022] Open
Abstract
Tumor cell invasion and metastasis formation are the major cause of death in cancer patients. These processes rely on extracellular matrix (ECM) degradation mediated by organelles termed invadopodia, to which the transmembrane matrix metalloproteinase MT1-MMP (also known as MMP14) is delivered from its reservoir, the RAB7-containing endolysosomes. How MT1-MMP is targeted to endolysosomes remains to be elucidated. Flotillin-1 and -2 are upregulated in many invasive cancers. Here, we show that flotillin upregulation triggers a general mechanism, common to carcinoma and sarcoma, which promotes RAB5-dependent MT1-MMP endocytosis and its delivery to RAB7-positive endolysosomal reservoirs. Conversely, flotillin knockdown in invasive cancer cells greatly reduces MT1-MMP accumulation in endolysosomes, its subsequent exocytosis at invadopodia, ECM degradation and cell invasion. Our results demonstrate that flotillin upregulation is necessary and sufficient to promote epithelial and mesenchymal cancer cell invasion and ECM degradation by controlling MT1-MMP endocytosis and delivery to the endolysosomal recycling compartment.
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Affiliation(s)
- Damien Planchon
- CRBM, Univ Montpellier, CNRS, France, 1919 Route de Mende, 34293 Montpellier, France
| | - Eduardo Rios Morris
- CRBM, Univ Montpellier, CNRS, France, 1919 Route de Mende, 34293 Montpellier, France
| | - Mallory Genest
- CRBM, Univ Montpellier, CNRS, France, 1919 Route de Mende, 34293 Montpellier, France
| | - Franck Comunale
- CRBM, Univ Montpellier, CNRS, France, 1919 Route de Mende, 34293 Montpellier, France
| | - Sophie Vacher
- Department of Genetics, Institut Curie, 75005 Paris, France
| | - Ivan Bièche
- Department of Genetics, Institut Curie, 75005 Paris, France
| | - Evgeny V Denisov
- Cancer Research Institute, Tomsk National Research Medical Center, Tomsk 634050, Russia.,Tomsk State University, Tomsk 634050, Russia
| | - Lubov A Tashireva
- Cancer Research Institute, Tomsk National Research Medical Center, Tomsk 634050, Russia
| | - Vladimir M Perelmuter
- Cancer Research Institute, Tomsk National Research Medical Center, Tomsk 634050, Russia
| | - Stefan Linder
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Philippe Chavrier
- Cell Dynamics and Compartmentalization Unit, Institut Curie, 75005 Paris, France
| | - Stéphane Bodin
- CRBM, Univ Montpellier, CNRS, France, 1919 Route de Mende, 34293 Montpellier, France
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Schiewek J, Schumacher U, Lange T, Joosse SA, Wikman H, Pantel K, Mikhaylova M, Kneussel M, Linder S, Schmalfeldt B, Oliveira-Ferrer L, Windhorst S. Clinical relevance of cytoskeleton associated proteins for ovarian cancer. J Cancer Res Clin Oncol 2018; 144:2195-2205. [PMID: 30094535 DOI: 10.1007/s00432-018-2710-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 07/16/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE Ovarian cancer has a high mortality rate and up to now no reliable molecular prognostic biomarkers have been established. During malignant progression, the cytoskeleton is strongly altered. Hence we analyzed if expression of certain cytoskeleton-associated proteins is correlated with clinical outcome of ovarian cancer patients. METHODS First, in silico analysis was performed using the cancer genome atlas (TCGA), the human expression atlas and Pubmed. Selected candidates were validated on 270 ovarian cancer patients by qRT-PCR and/or by western blotting. RESULTS In silico analysis revealed that mRNAs of 214 cytoskeleton-associated proteins are detectable in ovarian cancer tissue. Among these, we selected 17 proteins that participate in cancer disease progression and cytoskeleton modulation: KIF14, KIF20A, KIF18A, ASPM, CEP55, DLGAP5, MAP9, EB1, KATNA1, DIAPH1, ANLN, SCIN, CCDC88A, FSCN1, GSN, VASP and CDC42. The first ten candidates interact with microtubules (MTs) and the others bind to actin filaments. Validation on clinical samples of ovarian cancer patients revealed that the expression levels of DIAPH1, EB1, KATNA1, KIF14 and KIF18A significantly correlated with clinical and histological parameters of ovarian cancer. High DIAPH1, EB1, KATNA1 and KIF14 protein levels were associated with increased overall survival (OAS) of ovarian cancer patients, while high DIAPH1 and EB1 protein levels were also associated with low differentiation of respective tumors (G2/3). Moreover, DIAPH1 was the only protein, whose expression significantly correlated with increased recurrence-free interval (RFI). CONCLUSION Mainly the expression levels of the MT-associated proteins analyzed in this study, correlated with prolonged survival of ovarian cancer patients. From > 200 genes initially considered, 17 cytoskeletal proteins are involved in cancer progression according to the literature. Among these, four proteins significantly correlated with improved survival of ovarian cancer patients.
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Affiliation(s)
- Johanna Schiewek
- Department of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Udo Schumacher
- Institute of Anatomy and Experimental Morphology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Tobias Lange
- Institute of Anatomy and Experimental Morphology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Simon A Joosse
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Harriet Wikman
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Klaus Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Marina Mikhaylova
- DFG Emmy Noether Group 'Neuronal Protein Transport', Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Matthias Kneussel
- Department of Molecular Neurogenetics, Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Falkenried 94, 20251, Hamburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Barbara Schmalfeldt
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Leticia Oliveira-Ferrer
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Sabine Windhorst
- Department of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
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Kirsten A, Linder S, Olbrich S. [Perspectives for the Electroencephalogram in Psychiatry]. Praxis (Bern 1994) 2018; 107:837-843. [PMID: 30043707 DOI: 10.1024/1661-8157/a003028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Perspectives for the Electroencephalogram in Psychiatry Abstract. The electroencephalogram (EEG) is a non-invasive and cost-effective method to monitor spontaneous neuronal activity over time. Pathologies in EEG recordings indicate with high sensitivity but low specificity abnormal functional brain states. The main psychiatric indications for EEG recordings include atypical clinical symptoms of a neuropsychiatric syndrome or atypical reactions to medication as well as a baseline diagnostic before starting treatment with specific drugs or stimulation modalities. In recent research the EEG continues to be a valuable tool not only in diagnostics but also for the prediction of treatment success. The following paper focuses on basic electrophysiological understanding of EEG recordings, the diagnostic value of EEG recordings in different clinical entities, and new research attempts in diagnostic and treatment prediction.
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Stone V, Führ M, Feindt PH, Bouwmeester H, Linkov I, Sabella S, Murphy F, Bizer K, Tran L, Ågerstrand M, Fito C, Andersen T, Anderson D, Bergamaschi E, Cherrie JW, Cowan S, Dalemcourt JF, Faure M, Gabbert S, Gajewicz A, Fernandes TF, Hristozov D, Johnston HJ, Lansdown TC, Linder S, Marvin HJP, Mullins M, Purnhagen K, Puzyn T, Sanchez Jimenez A, Scott-Fordsmand JJ, Streftaris G, van Tongeren M, Voelcker NH, Voyiatzis G, Yannopoulos SN, Poortvliet PM. The Essential Elements of a Risk Governance Framework for Current and Future Nanotechnologies. Risk Anal 2018; 38:1321-1331. [PMID: 29240986 DOI: 10.1111/risa.12954] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 10/13/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
Societies worldwide are investing considerable resources into the safe development and use of nanomaterials. Although each of these protective efforts is crucial for governing the risks of nanomaterials, they are insufficient in isolation. What is missing is a more integrative governance approach that goes beyond legislation. Development of this approach must be evidence based and involve key stakeholders to ensure acceptance by end users. The challenge is to develop a framework that coordinates the variety of actors involved in nanotechnology and civil society to facilitate consideration of the complex issues that occur in this rapidly evolving research and development area. Here, we propose three sets of essential elements required to generate an effective risk governance framework for nanomaterials. (1) Advanced tools to facilitate risk-based decision making, including an assessment of the needs of users regarding risk assessment, mitigation, and transfer. (2) An integrated model of predicted human behavior and decision making concerning nanomaterial risks. (3) Legal and other (nano-specific and general) regulatory requirements to ensure compliance and to stimulate proactive approaches to safety. The implementation of such an approach should facilitate and motivate good practice for the various stakeholders to allow the safe and sustainable future development of nanotechnology.
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Affiliation(s)
| | - Martin Führ
- Darmstadt University of Applied Sciences, Department of Social and Cultural Sciences, Society for Institutional Analysis (Sofia), Darmstadt, Germany
| | - Peter H Feindt
- Wageningen University & Research, Wageningen, The Netherlands
| | - Hans Bouwmeester
- Wageningen University & Research, Wageningen, The Netherlands
- RIKILT Wageningen UR, Wageningen, The Netherlands
| | - Igor Linkov
- Carnegie Mellon University and the U.S. Army Engineer Research and Development Center, Concord, MA, USA
| | | | - Finbarr Murphy
- Kemmy Business School, University of Limerick, Limerick, Ireland
| | - Kilian Bizer
- Georg August University Göttingen, Göttingen, Lower Saxony, Germany
| | - Lang Tran
- Institute of Occupational Medicine, Edinburgh, UK
| | - Marlene Ågerstrand
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, Stockholm, Sweden
| | - Carlos Fito
- Instituto Tecnológico del Embalaje, Transporte y Logística (ITENE), Spain
| | | | | | - Enrico Bergamaschi
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy
| | - John W Cherrie
- Heriot-Watt University, Edinburgh, UK
- Institute of Occupational Medicine, Edinburgh, UK
| | - Sue Cowan
- Heriot-Watt University, Edinburgh, UK
| | | | - Michael Faure
- Maastricht University, Maastricht, The Netherlands
- Erasmus School of Law, Rotterdam, The Netherlands
| | - Silke Gabbert
- Wageningen University & Research, Wageningen, The Netherlands
| | - Agnieszka Gajewicz
- Laboratory of Environmental Chemometrics, University of Gdańsk, Gdańsk, Poland
| | | | | | | | | | | | | | - Martin Mullins
- Kemmy Business School, University of Limerick, Limerick, Ireland
| | - Kai Purnhagen
- Wageningen University & Research, Wageningen, The Netherlands
| | - Tomasz Puzyn
- Laboratory of Environmental Chemometrics, University of Gdańsk, Gdańsk, Poland
| | | | | | | | - Martie van Tongeren
- Centre for Occupational and Environmental Health, University of Manchester, Manchester, UK
| | - Nicolas H Voelcker
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - George Voyiatzis
- Foundation for Research & Technology, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Patras, Greece
| | - Spyros N Yannopoulos
- Foundation for Research & Technology, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Patras, Greece
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32
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Abstract
The actin cytoskeleton and associated motor proteins provide the driving forces for establishing the astonishing morphological diversity and dynamics of mammalian cells. Aside from functions in protruding and contracting cell membranes for motility, differentiation or cell division, the actin cytoskeleton provides forces to shape and move intracellular membranes of organelles and vesicles. To establish the many different actin assembly functions required in time and space, actin nucleators are targeted to specific subcellular compartments, thereby restricting the generation of specific actin filament structures to those sites. Recent research has revealed that targeting and activation of actin filament nucleators, elongators and myosin motors are tightly coordinated by conserved protein complexes to orchestrate force generation. In this Cell Science at a Glance article and the accompanying poster, we summarize and discuss the current knowledge on the corresponding protein complexes and their modes of action in actin nucleation, elongation and force generation.
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Affiliation(s)
- Klemens Rottner
- Division of Molecular Cell Biology, Zoological Institute, Technische Universität Braunschweig, 38106 Braunschweig, Germany.,Department of Cell Biology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Jan Faix
- Institute for Biophysical Chemistry, Hannover Medical School, 30625 Hannover, Germany
| | - Sven Bogdan
- Institute for Physiology and Pathophysiology, Department of Molecular Cell Physiology, Philipps-University of Marburg, 35032 Marburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Eugen Kerkhoff
- Department of Neurology, University Hospital Regensburg, 93053 Regensburg, Germany
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33
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Somboon T, Albert JL, Linder S, Bena J, Foldvary-Schaefer N. 0508 Performance Characteristics of Sleep Apnea Screening Instruments in Former Professional Athletes. Sleep 2018. [DOI: 10.1093/sleep/zsy061.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T Somboon
- Prasat Neurological Institute, Bangkok, THAIL
- Cleveland Clinic, Cleveland, OH
| | | | | | - J Bena
- Cleveland Clinic, Cleveland, OH
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34
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Abstract
The Arp2/3 complex nucleates branched actin networks and is thought to be essential for macrophage migration and phagocytosis. In this issue of Developmental Cell, Rotty et al. (2017) show that there is only a surprisingly specific requirement for Arp2/3 in integrin-dependent macrophage functions, including CR3 phagocytosis and haptotaxis on fibronectin.
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Affiliation(s)
- Stefan Linder
- Institut für Medizinische Mikrobiologie, Virologie und Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.
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35
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Paulus A, Akhtar S, Caulfield TR, Samuel K, Yousaf H, Bashir Y, Paulus SM, Tran D, Hudec R, Cogen D, Jiang J, Edenfield B, Novak A, Ansell SM, Witzig T, Martin P, Coleman M, Roy V, Ailawadhi S, Chitta K, Linder S, Chanan-Khan A. Coinhibition of the deubiquitinating enzymes, USP14 and UCHL5, with VLX1570 is lethal to ibrutinib- or bortezomib-resistant Waldenstrom macroglobulinemia tumor cells. Blood Cancer J 2016; 6:e492. [PMID: 27813535 PMCID: PMC5148058 DOI: 10.1038/bcj.2016.93] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/21/2016] [Accepted: 08/22/2016] [Indexed: 01/30/2023] Open
Abstract
The survival of Waldenstrom macroglobulinemia (WM) tumor cells hinges on aberrant B-cell receptor (BCR) and MYD88 signaling. WM cells upregulate the proteasome function to sustain the BCR-driven growth while maintaining homeostasis. Clinically, two treatment strategies are used to disrupt these complementary yet mutually exclusive WM survival pathways via ibrutinib (targets BTK/MYD88 node) and bortezomib (targets 20 S proteasome). Despite the success of both agents, WM patients eventually become refractory to treatment, highlighting the adaptive plasticity of WM cells and underscoring the need for development of new therapeutics. Here we provide a comprehensive preclinical report on the anti-WM activity of VLX1570, a novel small-molecule inhibitor of the deubiquitinating enzymes (DUBs), ubiquitin-specific protease 14 (USP14) and ubiquitin carboxyl-terminal hydrolase isozyme L5 (UCHL5). Both DUBs reside in the 19 S proteasome cap and their inhibition by VLX1570 results in rapid and tumor-specific apoptosis in bortezomib- or ibrutinib-resistant WM cells. Notably, treatment of WM cells with VLX1570 downregulated BCR-associated elements BTK, MYD88, NFATC, NF-κB and CXCR4, the latter whose dysregulated function is linked to ibrutinib resistance. VLX1570 administered to WM-xenografted mice resulted in decreased tumor burden and prolonged survival (P=0.0008) compared with vehicle-treated mice. Overall, our report demonstrates significant value in targeting USP14/UCHL5 with VLX1570 in drug-resistant WM and carries a high potential for clinical translation.
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Affiliation(s)
- A Paulus
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA.,Division of Hematology and Oncology, Mayo Clinic, Jacksonville, FL, USA
| | - S Akhtar
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - T R Caulfield
- Department of Molecular Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - K Samuel
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - H Yousaf
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - Y Bashir
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - S M Paulus
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - D Tran
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - R Hudec
- Department of Molecular Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - D Cogen
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - J Jiang
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, USA
| | - B Edenfield
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - A Novak
- Department of Hematology and Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S M Ansell
- Department of Hematology and Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - T Witzig
- Department of Hematology and Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - P Martin
- Department of Medicine, Weill Cornell Medical College, Cornell, NY, USA
| | - M Coleman
- Department of Medicine, Weill Cornell Medical College, Cornell, NY, USA
| | - V Roy
- Division of Hematology and Oncology, Mayo Clinic, Jacksonville, FL, USA
| | - S Ailawadhi
- Division of Hematology and Oncology, Mayo Clinic, Jacksonville, FL, USA
| | - K Chitta
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - S Linder
- Institute for Oncology-Pathology, Cancer Center Karolinska, Karolinska Institute, Stockholm, Sweden
| | - A Chanan-Khan
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA.,Division of Hematology and Oncology, Mayo Clinic, Jacksonville, FL, USA
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36
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El Azzouzi K, Wiesner C, Linder S. Metalloproteinase MT1-MMP islets act as memory devices for podosome reemergence. J Cell Biol 2016; 213:109-25. [PMID: 27069022 PMCID: PMC4828691 DOI: 10.1083/jcb.201510043] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 03/02/2016] [Indexed: 12/11/2022] Open
Abstract
The authors find that matrix metalloproteinase MT1-MMP is enriched at the plasma membrane of macrophage podosomes, where it persists beyond podosome lifetime and, through binding to the subcortical actin cytoskeleton, forms subcellular signposts that facilitate podosome reformation. Podosomes are dynamic cell adhesions that are also sites of extracellular matrix degradation, through recruitment of matrix-lytic enzymes, particularly of matrix metalloproteinases. Using total internal reflection fluorescence microscopy, we show that the membrane-bound metalloproteinase MT1-MMP is enriched not only at podosomes but also at distinct “islets” embedded in the plasma membrane of primary human macrophages. MT1-MMP islets become apparent upon podosome dissolution and persist beyond podosome lifetime. Importantly, the majority of MT1-MMP islets are reused as sites of podosome reemergence. siRNA-mediated knockdown and recomplementation analyses show that islet formation is based on the cytoplasmic tail of MT1-MMP and its ability to bind the subcortical actin cytoskeleton. Collectively, our data reveal a previously unrecognized phase in the podosome life cycle and identify a structural function of MT1-MMP that is independent of its proteolytic activity. MT1-MMP islets thus act as cellular memory devices that enable efficient and localized reformation of podosomes, ensuring coordinated matrix degradation and invasion.
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Affiliation(s)
- Karim El Azzouzi
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, 20246 Hamburg, Germany
| | - Christiane Wiesner
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, 20246 Hamburg, Germany
| | - Stefan Linder
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, 20246 Hamburg, Germany
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37
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Lin YN, Bhuwania R, Gromova K, Failla AV, Lange T, Riecken K, Linder S, Kneussel M, Izbicki JR, Windhorst S. Drosophila homologue of Diaphanous 1 (DIAPH1) controls the metastatic potential of colon cancer cells by regulating microtubule-dependent adhesion. Oncotarget 2016; 6:18577-89. [PMID: 26124177 PMCID: PMC4621911 DOI: 10.18632/oncotarget.4094] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 05/11/2015] [Indexed: 11/25/2022] Open
Abstract
Drosophila homologue of Diaphanous 1 (DIAPH1) regulates actin polymerization and microtubule (MT) stabilization upon stimulation with lysophosphatidic acid (LPA). Recently, we showed strongly reduced lung metastasis of DIAPH1-depleted colon cancer cells but we found accumulations of DIAPH1-depleted cells in bone marrow. Here, we analyzed possible organ- or tissue-specific metastasis of DIAPH1-depleted HCT-116 cells. Our data confirmed that depletion of DIAPH1 strongly inhibited lung metastasis and revealed that, in contrast to control cells, DIAPH1-depleted cells did not form metastases in further organs. Detailed mechanistic analysis on cells that were not stimulated with LPA to activate the cytoskeleton-modulating activity of DIAPH1, revealed that even under basal conditions DIAPH1 was essential for cellular adhesion to collagen. In non-stimulated cells DIAPH1 did not control actin dynamics but, interestingly, was essential for stabilization of microtubules (MTs). Additionally, DIAPH1 controlled directed vesicle trafficking and with this, local clustering of the adhesion protein integrin-β1 at the plasma membrane. Therefore, we conclude that under non-stimulating conditions DIAPH1 controls cellular adhesion by stabilizing MTs required for local clustering of integrin-β1 at the plasma membrane. Thus, blockade of DIAPH1-tubulin interaction may be a promising approach to inhibit one of the earliest steps in the metastatic cascade of colon cancer.
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Affiliation(s)
- Yuan-Na Lin
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ridhirama Bhuwania
- Institute for Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kira Gromova
- Department of Molecular Neurogenetics, Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Tobias Lange
- Department of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kristoffer Riecken
- Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Linder
- Institute for Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Kneussel
- Department of Molecular Neurogenetics, Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jakob R Izbicki
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sabine Windhorst
- Department of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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38
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Abstract
The membrane-tethered membrane type 1–matrix metalloproteinase (MT1-MMP) mediates proteolysis-based invasive tumor growth. In this issue, Marchesin et al. (2015. J. Cell Biol.http://dx.doi.org/10.1083/jcb.201506002) describe a tug-of-war mechanism regulating dynein and kinesin motors to drive endosome tubulation and MT1-MMP delivery to the surface of cancer cells, identifying a crucial regulatory axis for tumor metastasis.
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Affiliation(s)
- Stefan Linder
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
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39
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Abstract
Cells interact with their environment through highly localized contact structures. Podosomes represent a subgroup of cell-matrix contacts, which is especially prominent in cells of the monocytic lineage such as monocytes, macrophages and dendritic cells, but also in a variety of other cell types. Comparable to other adhesion structures, podosomes feature a complex architecture, which forms the basis for their extensive repertoire of sensory and effector functions. These functions are mainly linked to interactions with the extracellular matrix and comprise well known properties such as cell-matrix adhesion and extracellular matrix degradation. A more recent discovery is the ability of podosomes to act as mechanosensory devices, by detecting rigidity and topography of the substratum. In this review, we focus especially on the molecular events involved in mechanosensing by podosomes, the structural elements of podosomes that enable this function, as well as the intra- and extracellular signals generated downstream of podosome mechanosensing.
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Affiliation(s)
- Stefan Linder
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.
| | - Christiane Wiesner
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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40
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Panzer L, Trübe L, Klose M, Joosten B, Slotman J, Cambi A, Linder S. The formins FHOD1 and INF2 regulate inter- and intra-structural contractility of podosomes. J Cell Sci 2015; 129:298-313. [PMID: 26621033 DOI: 10.1242/jcs.177691] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 11/24/2015] [Indexed: 01/13/2023] Open
Abstract
Podosomes are actin-rich adhesion structures that depend on Arp2/3-complex-based actin nucleation. We now report the identification of the formins FHOD1 and INF2 as novel components and additional actin-based regulators of podosomes in primary human macrophages. FHOD1 surrounds the podosome core and is also present at podosome-connecting cables, whereas INF2 localizes at the podosome cap structure. Using a variety of microscopy-based methods; including a semiautomated podosome reformation assay, measurement of podosome oscillations, FRAP analysis of single podosomes, and structured illumination microscopy, both formins were found to regulate different aspects of podosome-associated contractility, with FHOD1 mediating actomyosin contractility between podosomes, and INF2 regulating contractile events at individual podosomes. Moreover, INF2 was found to be a crucial regulator of podosome de novo formation and size. Collectively, we identify FHOD1 and INF2 as novel regulators of inter- and intra-structural contractility of podosomes. Podosomes thus present as one of the few currently identified structures which depend on the concerted activity of both Arp2/3 complex and specific formins and might serve as a model system for the analysis of complex actin architectures in cells.
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Affiliation(s)
- Linda Panzer
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistraße 52, Hamburg 20246, Germany
| | - Leona Trübe
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistraße 52, Hamburg 20246, Germany
| | - Matthias Klose
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistraße 52, Hamburg 20246, Germany
| | - Ben Joosten
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, Nijmegen 6525 GA, The Netherlands
| | - Johan Slotman
- Erasmus University, Wytemaweg 80, Rotterdam 3015 CN, The Netherlands
| | - Alessandra Cambi
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, Nijmegen 6525 GA, The Netherlands
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistraße 52, Hamburg 20246, Germany
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41
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Naj X, Linder S. ER-Coordinated Activities of Rab22a and Rab5a Drive Phagosomal Compaction and Intracellular Processing of Borrelia burgdorferi by Macrophages. Cell Rep 2015; 12:1816-30. [DOI: 10.1016/j.celrep.2015.08.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 06/24/2015] [Accepted: 08/08/2015] [Indexed: 01/26/2023] Open
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42
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Kunz J, Linder S. With a view to make things better: individual characteristics and intentions to engage in management innovation. J Manag Gov 2015. [DOI: 10.1007/s10997-013-9280-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Wiesner C, Le-Cabec V, El Azzouzi K, Maridonneau-Parini I, Linder S. Podosomes in space: macrophage migration and matrix degradation in 2D and 3D settings. Cell Adh Migr 2015; 8:179-91. [PMID: 24713854 DOI: 10.4161/cam.28116] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Migration of macrophages is a key process for a variety of physiological functions, such as pathogen clearance or tissue homeostasis. However, it can also be part of pathological scenarios, as in the case of tumor-associated macrophages. This review presents an overview of the different migration modes macrophages can adopt, depending on the physical and chemical properties of specific environments, and the constraints they impose upon cells. We discuss the importance of these environmental and also of cellular parameters, as well as their relative impact on macrophage migration and on the formation of matrix-lytic podosomes in 2D and 3D. Moreover, we present an overview of routinely used and also newly developed assays for the study of macrophage migration in both 2D and 3D contexts, their respective advantages and limitations, and also their potential to reliably mimic in vivo situations.
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Affiliation(s)
- Christiane Wiesner
- Institute for Medical Microbiology; Virology and Hygiene; University Medical Center Eppendorf; Hamburg, Germany
| | - Véronique Le-Cabec
- CNRS UMR 5089; IPBS (Institut de Pharmacologie et de Biologie Structurale), BP64182, 205 route de Narbonne, 31077 Toulouse Cedex 04, France; Université de Toulouse; UPS; IPBS; F-31077 Toulouse, France
| | - Karim El Azzouzi
- Institute for Medical Microbiology; Virology and Hygiene; University Medical Center Eppendorf; Hamburg, Germany
| | - Isabelle Maridonneau-Parini
- CNRS UMR 5089; IPBS (Institut de Pharmacologie et de Biologie Structurale), BP64182, 205 route de Narbonne, 31077 Toulouse Cedex 04, France; Université de Toulouse; UPS; IPBS; F-31077 Toulouse, France; These authors contributed equally to this work
| | - Stefan Linder
- Institute for Medical Microbiology; Virology and Hygiene; University Medical Center Eppendorf; Hamburg, Germany; These authors contributed equally to this work
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44
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Abstract
The matrix metalloproteinase MT1-MMP is a central regulator of cell invasion in both physiological and pathological settings, such as tissue surveillance by immune cells and cancer cell metastasis. MT1-MMP cleaves a plethora of intra- and extracellular proteins, including extracellular matrix proteins, matrix receptors, and also other MMPs, and thus enables modification of both the cell surface proteome and the pericellular environment. Despite its importance for cell invasion, the pathways regulating MT1-MMP exposure on the cell surface are largely unknown. Recently, our groups discovered that a specific subset of RABGTPases, most notably RAB5a, is critical for MT1-MMP trafficking in primary human macrophages and carcinoma cells. Here, we discuss and contrast our findings for both cell types, pointing out common features and differences in the RABGTPase-dependent trafficking of MT1-MMP in health and disease.
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Affiliation(s)
- Stefan Linder
- a Institute for Medical Microbiology; Virology and Hygiene ; University Medical Center Eppendorf ; Hamburg , Germany
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45
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Soderlund C, Linder S, Bergenzaun PE, Grape T, Hakansson HO, Kilander A, Lindell G, Ljungman M, Ohlin B, Nielsen J, Rudberg C, Stotzer PO, Svartholm E, Toth E, Frozanpor F. Nitinol versus steel partially covered self-expandable metal stent for malignant distal biliary obstruction: a randomized trial. Endoscopy 2014; 46:941-8. [PMID: 25321620 DOI: 10.1055/s-0034-1377936] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND STUDY AIMS Covered nitinol alloy self-expandable metal stents (SEMSs) have been developed to overcome the shortcomings of steel SEMS in patients with malignant biliary obstruction. In a randomized, multicenter trial, we compared stent patency, patient survival, and adverse events in patients with partly covered stents made from steel or nitinol. PATIENTS AND METHODS A total of 400 patients with unresectable distal malignant biliary obstruction were randomized at endoscopic retrograde cholangiopancreatography (ERCP) to insertion of a steel or nitinol partially covered SEMS, with 200 patients in each group. The primary outcome was confirmed stent failure during 300 days of follow-up. RESULTS At 300 days, the proportion of patients with patent stents was 77 % in the steel group, compared with 89 % in the nitinol group (P = 0.01). Confirmed stent failure occurred more often in the steel SEMS group compared with the nitinol SEMS group, in 30 versus 14 patients (P = 0.02). Stent migration occurred in 13 patients in the steel group and in 3 patients in the nitinol group (P = 0.01). Median patient survival (secondary outcome) was 137 days and 120 days in the steel SEMS and nitinol SEMS groups, respectively (P = 0.59). CONCLUSIONS The nitinol SEMS showed longer patency time, and the nitinol group had fewer patients with stent failure, compared with the steel SEMS group. We could not detect any differences between the two groups regarding survival time, and regarding adverse event rate.Clinical trial registration : NCT 00980889.
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Affiliation(s)
| | - Stefan Linder
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Per E Bergenzaun
- Departments of Surgery and Gastroenterology, Skane University Hospital, Lund, Sweden
| | - Tomas Grape
- Department of Surgery, Kristianstad Hospital, Kristianstad, Sweden
| | | | - Anders Kilander
- Department of Gastroenterology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Gert Lindell
- Departments of Surgery and Gastroenterology, Skane University Hospital, Lund, Sweden
| | | | - Bo Ohlin
- Department of Surgery, Blekinge Hospital, Karlskrona, Sweden
| | - Jorgen Nielsen
- Department of Gastroenterology, Skane University Hospital, Malmoe, Sweden
| | - Claes Rudberg
- Department of Surgery, Central Hospital, Vasteras, Sweden
| | - Per-Ove Stotzer
- Department of Gastroenterology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Erik Svartholm
- Department of Surgery, Ryhov Hospital, Jonkoping, Sweden
| | - Ervin Toth
- Department of Gastroenterology, Skane University Hospital, Malmoe, Sweden
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46
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Linder S, Wiesner C. Tools of the trade: podosomes as multipurpose organelles of monocytic cells. Cell Mol Life Sci 2014; 72:121-35. [PMID: 25300510 DOI: 10.1007/s00018-014-1731-z] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/03/2014] [Accepted: 09/08/2014] [Indexed: 01/07/2023]
Abstract
Podosomes are adhesion and invasion structures that are particularly prominent in cells of the monocytic lineage such as macrophages, dendritic cells, and osteoclasts. They are multifunctional organelles that combine several key abilities required for cell migration and invasion. The podosome repertoire includes well-established functions such as cell-substrate adhesion, and extracellular matrix degradation, recently discovered abilities such as rigidity and topology sensing as well as antigen sampling, and also more speculative functions such as cell protrusion stabilization and transmigration. Collectively, podosomes not only enable dynamic interactions of cells with their surroundings, they also gather information about the pericellular environment, and are actively involved in its reshaping. This review presents an overview of the current knowledge on podosome composition, architecture, and regulation. We focus in particular on the growing list of podosome functions and discuss the specific properties of podosomes in macrophages, dendritic cells, and osteoclasts. Moreover, this article highlights podosome-related intracellular transport processes, the formation of podosomes in 3D environments as well as potentially podosome-associated diseases involving monocytic cells.
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Affiliation(s)
- Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246, Hamburg, Germany,
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47
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Hoffmann AK, Naj X, Linder S. Daam1 is a regulator of filopodia formation and phagocytic uptake of Borrelia burgdorferi by primary human macrophages. FASEB J 2014; 28:3075-89. [PMID: 24696301 DOI: 10.1096/fj.13-247049] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Borrelia burgdorferi is the causative agent of Lyme disease, an infectious disease that primarily affects the skin, nervous system, and joints. Uptake of borreliae by immune cells is decisive for the course of the infection, and remodelling of the host actin cytoskeleton is crucial in this process. In this study, we showed that the actin-regulatory formin Daam1 is important in Borrelia phagocytosis by primary human macrophages. Uptake of borreliae proceeds preferentially through capture by filopodia and formation of coiling pseudopods that enwrap the spirochetes. Using immunofluorescence, we localized endogenous and overexpressed Daam1 to filopodia and to F-actin-rich uptake structures. Live-cell imaging further showed that Daam1 is enriched at coiling pseudopods that arise from the macrophage surface. This filopodia-independent step was corroborated by control experiments of phagocytic cup formation with latex beads. Moreover, siRNA-mediated knockdown of Daam1 led to a 65% reduction of borreliae-induced filopodia, and, as shown by the outside-inside staining technique, to a 50% decrease in phagocytic uptake of borreliae, as well as a 37% reduction in coiling pseudopod formation. Collectively, we showed that Daam1 plays a dual role in the phagocytic uptake of borreliae: first, as a regulator of filopodia, which are used for capturing spirochetes, and second, in the formation of the coiling pseudopod that enwraps the bacterial cell. These data identify Daam1 as a novel regulator of B. burgdorferi phagocytosis. At the same time, this is the first demonstration of a role for Daam1 in phagocytic processes in general.-Hoffmann, A.-K., Naj, X., Linder, S. Daam1 is a regulator of filopodia formation and phagocytic uptake of Borrelia burgdorferi by primary human macrophages.
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Affiliation(s)
- Ann-Kathrin Hoffmann
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Xenia Naj
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
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Ziemann A, Hess S, Bhuwania R, Linder S, Kloppenburg P, Noegel AA, Clemen CS. CRN2 enhances the invasiveness of glioblastoma cells. Neuro Oncol 2013; 15:548-61. [PMID: 23410663 PMCID: PMC3635520 DOI: 10.1093/neuonc/nos388] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 12/17/2012] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Movement of tumor cells involves dynamic remodeling of the actin cytoskeleton, which is regulated by actin binding proteins, such as CRN2 (synonyms: coronin 1C, coronin 3). In vitro, CRN2 participates in secretion, matrix degradation, protrusion formation, and cell migration. Furthermore, expression of CRN2 correlates with the malignant phenotype of human diffuse gliomas. CRN2's effects on actin polymerization and F-actin bundling are abolished by protein kinase 2 (CK2) dependent phosphorylation at serine 463. METHODS We generated human U373 glioblastoma cell lines with knock-down of CRN2 or over-expression of CRN2 variants and studied their behavior in vitro and ex vivo in organotypic brain slice cultures. RESULTS CRN2 over-expression and expression of the S463A phospho-resistant CRN2 variant increase proliferation, matrix degradation, and invasion but decrease adhesion and formation of invadopodia-like extensions in vitro. Knock-down of CRN2 and expression of S463D phospho-mimetic CRN2 generally have opposite effects. Analysis of invadopodia-like cell extensions shows a diffuse relocalization of F-actin in CRN2 knockdown cells, whereas expression of S463A and S463D mutant CRN2 causes enrichments of F-actin structures at the center and rime zone, respectively. Fluorescence recovery after photobleaching studies of CRN2 and F-actin in lamellipodia show that both CRN2 variants decrease the turnover of actin filaments. Glioblastoma cells over-expressing wild-type or S463A CRN2, which were transplanted onto brain slices, characteristically developed into tumors with an invasive phenotype. CONCLUSIONS Overall, our data indicate that CRN2 participates in cancer progression via modulation of the actin cytoskeleton.
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Affiliation(s)
- Anja Ziemann
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
| | - Simon Hess
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
| | - Ridhirama Bhuwania
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
| | - Stefan Linder
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
| | - Peter Kloppenburg
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
| | - Angelika A. Noegel
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
| | - Christoph S. Clemen
- Center for Biochemistry, Institute of Biochemistry I, Medical Faculty (A.Z., A.A.N., C.S.C.), Institute of Zoology (S.H., P.K.), Center for Molecular Medicine Cologne (S.H., P.K., A.A.N.), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne (S.H., P.K., A.A.N.); and Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (R.B., S.L.)
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Wiesner C, El Azzouzi K, Linder S. A specific subset of RabGTPases controls cell surface exposure of MT1-MMP, extracellular matrix degradation and three-dimensional invasion of macrophages. J Cell Sci 2013; 126:2820-33. [PMID: 23606746 DOI: 10.1242/jcs.122358] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The matrix metalloproteinase MT1-MMP has a major impact on invasive cell migration in both physiological and pathological settings such as immune cell extravasation or metastasis of cancer cells. Surface-associated MT1-MMP is able to cleave components of the extracellular matrix, which is a prerequisite for proteolytic invasive migration. However, current knowledge on the molecular mechanisms that regulate MT1-MMP trafficking to and from the cell surface is limited. We have identified three members of the RabGTPase family, Rab5a, Rab8a and Rab14, as crucial regulators of MT1-MMP trafficking and function in primary human macrophages. Both overexpressed and endogenous forms show prominent colocalisation with MT1-MMP-positive vesicles, whereas expression of mutant constructs, as well as siRNA-induced knockdown, reveal that these RabGTPases are crucial in the regulation of MT1-MMP surface exposure, contact of MT1-MMP-positive vesicles with podosomes, extracellular matrix degradation in two and three dimensions, as well as three-dimensional proteolytic invasion of macrophages. Collectively, our results identify Rab5a, Rab8a and Rab14 as major regulators of MT1-MMP trafficking and invasive migration of primary human macrophages, which could be promising potential targets for manipulation of immune cell invasion.
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Affiliation(s)
- Christiane Wiesner
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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Rehm K, Panzer L, van Vliet V, Genot E, Linder S. Drebrin preserves endothelial integrity by stabilizing nectin at adherens junctions. J Cell Sci 2013; 126:3756-69. [DOI: 10.1242/jcs.129437] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Regulation of cell-cell contacts is essential for integrity of the vascular endothelium. Here, a critical role of the F-actin binding protein drebrin in maintaining endothelial integrity is revealed under conditions mimicking vascular flow. Drebrin knockdown leads to weakening of cell-cell contacts, characterized by loss of nectin from adherens junctions and its subsequent lysosomal degradation. Immunoprecipitation, FRAP and mitochondrial retargeting experiments show that nectin stabilization occurs through a chain of interactions: drebrin binding to F-actin, interaction of drebrin and afadin through their polyproline and PR1-2 regions, and recruitment of nectin through afadin's PDZ region. Key elements are drebrin's modules that confer binding to afadin and F-actin. Evidence is provided by constructs containing afadin's PDZ region coupled to drebrin's F-actin binding region or to lifeact, which restore junctional nectin under knockdown of drebrin or of both drebrin and afadin. Drebrin, containing binding sites for both afadin and F-actin, is thus uniquely equipped to stabilize nectin at endothelial junctions and to preserve endothelial integrity under vascular flow.
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