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Valdeolivas A, Amberg B, Giroud N, Richardson M, Gálvez EJC, Badillo S, Julien-Laferrière A, Túrós D, Voith von Voithenberg L, Wells I, Pesti B, Lo AA, Yángüez E, Das Thakur M, Bscheider M, Sultan M, Kumpesa N, Jacobsen B, Bergauer T, Saez-Rodriguez J, Rottenberg S, Schwalie PC, Hahn K. Profiling the heterogeneity of colorectal cancer consensus molecular subtypes using spatial transcriptomics. NPJ Precis Oncol 2024; 8:10. [PMID: 38200223 PMCID: PMC10781769 DOI: 10.1038/s41698-023-00488-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 12/04/2023] [Indexed: 01/12/2024] Open
Abstract
The consensus molecular subtypes (CMS) of colorectal cancer (CRC) is the most widely-used gene expression-based classification and has contributed to a better understanding of disease heterogeneity and prognosis. Nevertheless, CMS intratumoral heterogeneity restricts its clinical application, stressing the necessity of further characterizing the composition and architecture of CRC. Here, we used Spatial Transcriptomics (ST) in combination with single-cell RNA sequencing (scRNA-seq) to decipher the spatially resolved cellular and molecular composition of CRC. In addition to mapping the intratumoral heterogeneity of CMS and their microenvironment, we identified cell communication events in the tumor-stroma interface of CMS2 carcinomas. This includes tumor growth-inhibiting as well as -activating signals, such as the potential regulation of the ETV4 transcriptional activity by DCN or the PLAU-PLAUR ligand-receptor interaction. Our study illustrates the potential of ST to resolve CRC molecular heterogeneity and thereby help advance personalized therapy.
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Affiliation(s)
- Alberto Valdeolivas
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland.
| | - Bettina Amberg
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Nicolas Giroud
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Marion Richardson
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Eric J C Gálvez
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Solveig Badillo
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Alice Julien-Laferrière
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Demeter Túrós
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - Isabelle Wells
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Benedek Pesti
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Amy A Lo
- Genentech, Inc, San Francisco, CA, USA
| | - Emilio Yángüez
- Roche Pharma Research and Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | | | - Michael Bscheider
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Marc Sultan
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Nadine Kumpesa
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Björn Jacobsen
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Tobias Bergauer
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Julio Saez-Rodriguez
- Faculty of Medicine and Heidelberg University Hospital, Institute of Computational Biomedicine, Heidelberg University, Heidelberg, Germany
| | - Sven Rottenberg
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Bern Center for Precision Medicine (BCPM), University of Bern, Bern, Switzerland
| | - Petra C Schwalie
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Kerstin Hahn
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland.
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2
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Kandala S, Ramos M, Voith von Voithenberg L, Diaz-Jimenez A, Chocarro S, Keding J, Brors B, Imbusch CD, Sotillo R. Chronic chromosome instability induced by Plk1 results in immune suppression in breast cancer. Cell Rep 2023; 42:113266. [PMID: 37979172 DOI: 10.1016/j.celrep.2023.113266] [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: 01/19/2023] [Revised: 06/28/2023] [Accepted: 09/28/2023] [Indexed: 11/20/2023] Open
Abstract
Chromosome instability (CIN) contributes to resistance to therapies and tumor evolution. Although natural killer (NK) cells can eliminate cells with complex karyotypes, high-CIN human tumors have an immunosuppressive phenotype. To understand which CIN-associated molecular features alter immune recognition during tumor evolution, we overexpress Polo-like kinase 1 (Plk1) in a Her2+ breast cancer model. These high-CIN tumors activate a senescence-associated secretory phenotype (SASP), upregulate PD-L1 and CD206, and induce non-cell-autonomous nuclear factor κB (NF-κβ) signaling, facilitating immune evasion. Single-cell RNA sequencing from pre-neoplastic mammary glands unveiled the presence of Arg1+ macrophages, NK cells with reduced effector functions, and increased resting regulatory T cell infiltration. We further show that high PLK1-expressing human breast tumors display gene expression patterns associated with SASP, NF-κβ signaling, and immune suppression. These findings underscore the need to understand the immune landscape in CIN tumors to identify more effective therapies, potentially combining immune checkpoint or NF-κβ inhibitors with current treatments.
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Affiliation(s)
- Sridhar Kandala
- Division of Molecular Thoracic Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Maria Ramos
- Division of Molecular Thoracic Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Lena Voith von Voithenberg
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Alberto Diaz-Jimenez
- Division of Molecular Thoracic Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Sara Chocarro
- Division of Molecular Thoracic Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Johanna Keding
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Benedikt Brors
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Department of Medical Oncology, National Center for Tumor Diseases, Heidelberg University Hospital, 69120 Heidelberg, Germany
| | - Charles D Imbusch
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Rocio Sotillo
- Division of Molecular Thoracic Oncology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Translational Lung Research Center Heidelberg (TRLC), German Center for Lung Research (DZL), Heidelberg, Germany.
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3
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Yousuf S, Qiu M, Voith von Voithenberg L, Hulkkonen J, Macinkovic I, Schulz AR, Hartmann D, Mueller F, Mijatovic M, Ibberson D, AlHalabi KT, Hetzer J, Anders S, Brüne B, Mei HE, Imbusch CD, Brors B, Heikenwälder M, Gaida MM, Büchler MW, Weigert A, Hackert T, Roth S. Spatially Resolved Multi-Omics Single-Cell Analyses Inform Mechanisms of Immune Dysfunction in Pancreatic Cancer. Gastroenterology 2023; 165:891-908.e14. [PMID: 37263303 DOI: 10.1053/j.gastro.2023.05.036] [Citation(s) in RCA: 4] [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] [Received: 08/14/2022] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND & AIMS As pancreatic ductal adenocarcinoma (PDAC) continues to be recalcitrant to therapeutic interventions, including poor response to immunotherapy, albeit effective in other solid malignancies, a more nuanced understanding of the immune microenvironment in PDAC is urgently needed. We aimed to unveil a detailed view of the immune micromilieu in PDAC using a spatially resolved multimodal single-cell approach. METHODS We applied single-cell RNA sequencing, spatial transcriptomics, multiplex immunohistochemistry, and mass cytometry to profile the immune compartment in treatment-naïve PDAC tumors and matched adjacent normal pancreatic tissue, as well as in the systemic circulation. We determined prognostic associations of immune signatures and performed a meta-analysis of the immune microenvironment in PDAC and lung adenocarcinoma on single-cell level. RESULTS We provided a spatially resolved fine map of the immune landscape in PDAC. We substantiated the exhausted phenotype of CD8 T cells and immunosuppressive features of myeloid cells, and highlighted immune subsets with potentially underappreciated roles in PDAC that diverged from immune populations within adjacent normal areas, particularly CD4 T cell subsets and natural killer T cells that are terminally exhausted and acquire a regulatory phenotype. Differential analysis of immune phenotypes in PDAC and lung adenocarcinoma revealed the presence of extraordinarily immunosuppressive subtypes in PDAC, along with a distinctive immune checkpoint composition. CONCLUSIONS Our study sheds light on the multilayered immune dysfunction in PDAC and presents a holistic view of the immune landscape in PDAC and lung adenocarcinoma, providing a comprehensive resource for functional studies and the exploration of therapeutically actionable targets in PDAC.
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Affiliation(s)
- Suhail Yousuf
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Mengjie Qiu
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Johannes Hulkkonen
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Igor Macinkovic
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | | | - Domenic Hartmann
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Florian Mueller
- Division of Chronic Inflammation and Cancer, German Cancer Research Center, Heidelberg, Germany
| | - Margarete Mijatovic
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - David Ibberson
- Deep Sequencing Core Facility, BioQuant, Heidelberg University, Heidelberg, Germany
| | - Karam T AlHalabi
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Jenny Hetzer
- Division of Chronic Inflammation and Cancer, German Cancer Research Center, Heidelberg, Germany
| | - Simon Anders
- BioQuant Center, Heidelberg University, Heidelberg, Germany
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany; Frankfurt Cancer Institute, Goethe-University Frankfurt, Frankfurt, Germany; German Cancer Consortium, Partner Site Frankfurt, Germany
| | - Henrik E Mei
- German Rheumatism Research Center, Berlin, Germany
| | - Charles D Imbusch
- Division of Applied Bioinformatics, German Cancer Research Center, Heidelberg, Germany
| | - Benedikt Brors
- Division of Applied Bioinformatics, German Cancer Research Center, Heidelberg, Germany
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center, Heidelberg, Germany
| | - Matthias M Gaida
- Institute of Pathology, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany; Research Center for Immunotherapy, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany; Joint Unit Immunopathology, Institute of Pathology, University Medical Center, Johannes Gutenberg University and Translational Oncology, University Medical Center Mainz, Mainz, Germany
| | - Markus W Büchler
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany; Frankfurt Cancer Institute, Goethe-University Frankfurt, Frankfurt, Germany; German Cancer Consortium, Partner Site Frankfurt, Germany
| | - Thilo Hackert
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Susanne Roth
- Department of Surgery, Heidelberg University Hospital, Heidelberg, Germany.
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4
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Voith von Voithenberg L, Kashyap A, Opitz L, Aquino C, Sykes T, Nieser M, Petrini LFT, Enrriquez Casimiro N, van Kooten XF, Biskup S, Schlapbach R, Schraml P, Kaigala GV. Mapping Spatial Genetic Landscapes in Tissue Sections through Microscale Integration of Sampling Methodology into Genomic Workflows. Small 2021; 17:e2007901. [PMID: 33852760 DOI: 10.1002/smll.202007901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/12/2021] [Indexed: 06/12/2023]
Abstract
In cancer research, genomic profiles are often extracted from homogenized macrodissections of tissues, with the histological context lost and a large fraction of material underutilized. Pertinently, the spatial genomic landscape provides critical complementary information in deciphering disease heterogeneity and progression. Microscale sampling methods such as microdissection to obtain such information are often destructive to a sizeable fraction of the biopsy sample, thus showing limited multiplexability and adaptability to different assays. A modular microfluidic technology is here implemented to recover cells at the microscale from tumor tissue sections, with minimal disruption of unsampled areas and tailored to interface with genome profiling workflows, which is directed here toward evaluating intratumoral genomic heterogeneity. The integrated workflow-GeneScape-is used to evaluate heterogeneity in a metastatic mammary carcinoma, showing distinct single nucleotide variants and copy number variations in different tumor tissue regions, suggesting the polyclonal origin of the metastasis as well as development driven by multiple location-specific drivers.
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Affiliation(s)
| | - Aditya Kashyap
- IBM Research Europe, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
| | - Lennart Opitz
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Catharine Aquino
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Timothy Sykes
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Maike Nieser
- Center for Genomics and Transcriptomics, Paul-Ehrlich-Str. 23, 72076, Tübingen, Germany
| | | | | | | | - Saskia Biskup
- Center for Genomics and Transcriptomics, Paul-Ehrlich-Str. 23, 72076, Tübingen, Germany
| | - Ralph Schlapbach
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Peter Schraml
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstr. 12, Zurich, CH-8091, Switzerland
| | - Govind V Kaigala
- IBM Research Europe, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
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5
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Heiss G, Ploetz E, Voith von Voithenberg L, Viswanathan R, Glaser S, Schluesche P, Madhira S, Meisterernst M, Auble DT, Lamb DC. Conformational changes and catalytic inefficiency associated with Mot1-mediated TBP-DNA dissociation. Nucleic Acids Res 2019; 47:2793-2806. [PMID: 30649478 PMCID: PMC6451094 DOI: 10.1093/nar/gky1322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/07/2018] [Revised: 12/21/2018] [Accepted: 01/07/2019] [Indexed: 11/12/2022] Open
Abstract
The TATA-box Binding Protein (TBP) plays a central role in regulating gene expression and is the first step in the process of pre-initiation complex (PIC) formation on promoter DNA. The lifetime of TBP at the promoter site is controlled by several cofactors including the Modifier of transcription 1 (Mot1), an essential TBP-associated ATPase. Based on ensemble measurements, Mot1 can use adenosine triphosphate (ATP) hydrolysis to displace TBP from DNA and various models for how this activity is coupled to transcriptional regulation have been proposed. However, the underlying molecular mechanism of Mot1 action is not well understood. In this work, the interaction of Mot1 with the DNA/TBP complex was investigated by single-pair Förster resonance energy transfer (spFRET). Upon Mot1 binding to the DNA/TBP complex, a transition in the DNA/TBP conformation was observed. Hydrolysis of ATP by Mot1 led to a conformational change but was not sufficient to efficiently disrupt the complex. SpFRET measurements of dual-labeled DNA suggest that Mot1's ATPase activity primes incorrectly oriented TBP for dissociation from DNA and additional Mot1 in solution is necessary for TBP unbinding. These findings provide a framework for understanding how the efficiency of Mot1's catalytic activity is tuned to establish a dynamic pool of TBP without interfering with stable and functional TBP-containing complexes.
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Affiliation(s)
- Gregor Heiss
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
| | - Evelyn Ploetz
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
| | - Lena Voith von Voithenberg
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
| | - Ramya Viswanathan
- Department of Biochemistry and Molecular Genetics, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Samson Glaser
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
| | - Peter Schluesche
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
| | - Sushi Madhira
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
| | - Michael Meisterernst
- Institut für Molekulare Tumorbiologie, Westfälische Wilhelms-Universität, Münster 48149, Germany
| | - David T Auble
- Department of Biochemistry and Molecular Genetics, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Don C Lamb
- Department für Chemie, Center for Nanoscience (CeNS), Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität, München 81377, Germany
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6
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Kooten XF, Petrini LFT, Kashyap A, Voith von Voithenberg L, Bercovici M, Kaigala GV. Spatially Resolved Genetic Analysis of Tissue Sections Enabled by Microscale Flow Confinement Retrieval and Isotachophoretic Purification. Angew Chem Int Ed Engl 2019; 58:15259-15262. [DOI: 10.1002/anie.201907150] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Xander F. Kooten
- IBM Research—Zurich Säumerstrasse 4 8803 Rüschlikon Switzerland
- Faculty of Mechanical Engineering, Technion—Israel Institute of Technology Technion City 3200003 Haifa Israel
| | | | - Aditya Kashyap
- IBM Research—Zurich Säumerstrasse 4 8803 Rüschlikon Switzerland
| | | | - Moran Bercovici
- Faculty of Mechanical Engineering, Technion—Israel Institute of Technology Technion City 3200003 Haifa Israel
- Department of Mechanical EngineeringThe University of Texas at Austin Austin TX 78712 USA
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7
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Kooten XF, Petrini LFT, Kashyap A, Voith von Voithenberg L, Bercovici M, Kaigala GV. Spatially Resolved Genetic Analysis of Tissue Sections Enabled by Microscale Flow Confinement Retrieval and Isotachophoretic Purification. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xander F. Kooten
- IBM Research—Zurich Säumerstrasse 4 8803 Rüschlikon Switzerland
- Faculty of Mechanical Engineering, Technion— Israel Institute of Technology Technion City 3200003 Haifa Israel
| | | | - Aditya Kashyap
- IBM Research—Zurich Säumerstrasse 4 8803 Rüschlikon Switzerland
| | | | - Moran Bercovici
- Faculty of Mechanical Engineering, Technion— Israel Institute of Technology Technion City 3200003 Haifa Israel
- Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 USA
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8
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Barth A, Voith von Voithenberg L, Lamb DC. Quantitative Single-Molecule Three-Color Förster Resonance Energy Transfer by Photon Distribution Analysis. J Phys Chem B 2019; 123:6901-6916. [PMID: 31117611 DOI: 10.1021/acs.jpcb.9b02967] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Single-molecule Förster resonance energy transfer (FRET) is a powerful tool to study conformational dynamics of biomolecules. Using solution-based single-pair FRET by burst analysis, conformational heterogeneities and fluctuations of fluorescently labeled proteins or nucleic acids can be studied by monitoring a single distance at a time. Three-color FRET is sensitive to three distances simultaneously and can thus elucidate complex coordinated motions within single molecules. While three-color FRET has been applied on the single-molecule level before, a detailed quantitative description of the obtained FRET efficiency distributions is still missing. Direct interpretation of three-color FRET data is additionally complicated by an increased shot noise contribution when converting photon counts to FRET efficiencies. However, to address the question of coordinated motion, it is of special interest to extract information about the underlying distance heterogeneity, which is not easily extracted from the FRET efficiency histograms directly. Here, we present three-color photon distribution analysis (3C-PDA), a method to extract distributions of interdye distances from three-color FRET measurements. We present a model for diffusion-based three-color FRET experiments and apply Bayesian inference to extract information about the physically relevant distance heterogeneity in the sample. The approach is verified using simulated data sets and experimentally applied to triple-labeled DNA duplexes. Finally, three-color FRET experiments on the Hsp70 chaperone BiP reveal conformational coordinated changes between individual domains. The possibility to address the co-occurrence of intramolecular distances makes 3C-PDA a powerful method to study the coordination of domain motions within biomolecules undergoing conformational dynamics.
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Affiliation(s)
- Anders Barth
- Department of Chemistry, Center for Integrated Protein Science Munich, Nanosystems Initiative Munich and Center for Nanoscience , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13 , 81377 Munich , Germany
| | - Lena Voith von Voithenberg
- Department of Chemistry, Center for Integrated Protein Science Munich, Nanosystems Initiative Munich and Center for Nanoscience , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13 , 81377 Munich , Germany
| | - Don C Lamb
- Department of Chemistry, Center for Integrated Protein Science Munich, Nanosystems Initiative Munich and Center for Nanoscience , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13 , 81377 Munich , Germany
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9
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Voith von Voithenberg L, Crocetti E, Martos C, Dimitrova N, Giusti F, Randi G, Rooney R, Dyba T, Bettio M, Negrão Carvalho R. Cancer registries - guardians of breast cancer biomarker information: A systematic review. Int J Biol Markers 2019; 34:194-199. [PMID: 30968746 DOI: 10.1177/1724600819836097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Breast cancer is the most common cancer and the leading cause of cancer-related death in females, with a large societal and economic impact. Decisions regarding its treatment are largely affected by the categorization into different subtypes with hormone receptor status and HER2 status being the most important predictive factors. Other biological markers play an important role for prognostic and predictive reasons. The data collection and harmonization of cancer cases are performed by cancer registries whose collection of parameters largely differs, partially including results from biomarker testing. METHODS This systematic literature review consisting of a total of 729 reports determined whether information about biomarker testing in breast cancer cases is collected and published by cancer registries worldwide. RESULTS The number of publications using breast cancer biomarker data from registries steeply rose with the beginning of the 21st century and some hospital-based and population-based cancer registries reacted with immediate collection of biomarker data following the recommendation of clinical guidelines. For female breast cancer, biomarkers have achieved an essential clinical value and this review points to a steady increase in the collection of biomarker data by cancer registries during the last decade. CONCLUSIONS In the future, recommendations for biomarker data collection and coding by cancer registries may be required to ensure harmonization and comparability of the data.
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Affiliation(s)
| | | | - Carmen Martos
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Nadya Dimitrova
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | | | - Giorgia Randi
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Roisin Rooney
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Tadeusz Dyba
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Manola Bettio
- European Commission, Joint Research Centre (JRC), Ispra, Italy
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10
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Ploetz E, Barth A, Voith von Voithenberg L, Agam G, Lamb DC. Elucidating the Molecular Binding Mechanism of the Tata-Binding Protein using Pie-Pife. Biophys J 2019. [DOI: 10.1016/j.bpj.2018.11.1187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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11
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Voith von Voithenberg L, Park J, Stübe R, Lux C, Lee Y, Philippar K. A Novel Prokaryote-Type ECF/ABC Transporter Module in Chloroplast Metal Homeostasis. Front Plant Sci 2019; 10:1264. [PMID: 31736987 PMCID: PMC6828968 DOI: 10.3389/fpls.2019.01264] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 09/11/2019] [Indexed: 05/18/2023]
Abstract
During evolution, chloroplasts, which originated by endosymbiosis of a prokaryotic ancestor of today's cyanobacteria with a eukaryotic host cell, were established as the site for photosynthesis. Therefore, chloroplast organelles are loaded with transition metals including iron, copper, and manganese, which are essential for photosynthetic electron transport due to their redox capacity. Although transport, storage, and cofactor-assembly of metal ions in chloroplasts are tightly controlled and crucial throughout plant growth and development, knowledge on the molecular nature of chloroplast metal-transport proteins is still fragmentary. Here, we characterized the soluble, ATP-binding ABC-transporter subunits ABCI10 and ABCI11 in Arabidopsis thaliana, which show similarities to components of prokaryotic, multisubunit ABC transporters. Both ABCI10 and ABCI11 proteins appear to be strongly attached to chloroplast-intrinsic membranes, most likely inner envelopes for ABCI10 and possibly plastoglobuli for ABCI11. Loss of ABCI10 and ABCI11 gene products in Arabidopsis leads to extremely dwarfed, albino plants showing impaired chloroplast biogenesis and deregulated metal homeostasis. Further, we identified the membrane-intrinsic protein ABCI12 as potential interaction partner for ABCI10 in the inner envelope. Our results suggest that ABCI12 inserts into the chloroplast inner envelope membrane most likely with five predicted α-helical transmembrane domains and represents the membrane-intrinsic subunit of a prokaryotic-type, energy-coupling factor (ECF) ABC-transporter complex. In bacteria, these multisubunit ECF importers are widely distributed for the uptake of nickel and cobalt metal ions as well as for import of vitamins and several other metabolites. Therefore, we propose that ABCI10 (as the ATPase A-subunit) and ABCI12 (as the membrane-intrinsic, energy-coupling T-subunit) are part of a novel, chloroplast envelope-localized, AAT energy-coupling module of a prokaryotic-type ECF transporter, most likely involved in metal ion uptake.
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Affiliation(s)
| | - Jiyoung Park
- Department of Life Science, Pohang University of Science and Technology, Pohang, South Korea
| | - Roland Stübe
- Plant Biochemistry and Physiology, Department of Biology I, LMU München, Planegg-Martinsried, Germany
| | - Christopher Lux
- Plant Biology, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken, Germany
| | - Youngsook Lee
- Department of Life Science, Pohang University of Science and Technology, Pohang, South Korea
| | - Katrin Philippar
- Plant Biology, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken, Germany
- *Correspondence: Katrin Philippar,
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Voith von Voithenberg L, Park J, Stübe R, Lux C, Lee Y, Philippar K. A Novel Prokaryote-Type ECF/ABC Transporter Module in Chloroplast Metal Homeostasis. Front Plant Sci 2019; 10:1264. [PMID: 31736987 DOI: 10.3389/fpls201901264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 09/11/2019] [Indexed: 05/22/2023]
Abstract
During evolution, chloroplasts, which originated by endosymbiosis of a prokaryotic ancestor of today's cyanobacteria with a eukaryotic host cell, were established as the site for photosynthesis. Therefore, chloroplast organelles are loaded with transition metals including iron, copper, and manganese, which are essential for photosynthetic electron transport due to their redox capacity. Although transport, storage, and cofactor-assembly of metal ions in chloroplasts are tightly controlled and crucial throughout plant growth and development, knowledge on the molecular nature of chloroplast metal-transport proteins is still fragmentary. Here, we characterized the soluble, ATP-binding ABC-transporter subunits ABCI10 and ABCI11 in Arabidopsis thaliana, which show similarities to components of prokaryotic, multisubunit ABC transporters. Both ABCI10 and ABCI11 proteins appear to be strongly attached to chloroplast-intrinsic membranes, most likely inner envelopes for ABCI10 and possibly plastoglobuli for ABCI11. Loss of ABCI10 and ABCI11 gene products in Arabidopsis leads to extremely dwarfed, albino plants showing impaired chloroplast biogenesis and deregulated metal homeostasis. Further, we identified the membrane-intrinsic protein ABCI12 as potential interaction partner for ABCI10 in the inner envelope. Our results suggest that ABCI12 inserts into the chloroplast inner envelope membrane most likely with five predicted α-helical transmembrane domains and represents the membrane-intrinsic subunit of a prokaryotic-type, energy-coupling factor (ECF) ABC-transporter complex. In bacteria, these multisubunit ECF importers are widely distributed for the uptake of nickel and cobalt metal ions as well as for import of vitamins and several other metabolites. Therefore, we propose that ABCI10 (as the ATPase A-subunit) and ABCI12 (as the membrane-intrinsic, energy-coupling T-subunit) are part of a novel, chloroplast envelope-localized, AAT energy-coupling module of a prokaryotic-type ECF transporter, most likely involved in metal ion uptake.
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Affiliation(s)
| | - Jiyoung Park
- Department of Life Science, Pohang University of Science and Technology, Pohang, South Korea
| | - Roland Stübe
- Plant Biochemistry and Physiology, Department of Biology I, LMU München, Planegg-Martinsried, Germany
| | - Christopher Lux
- Plant Biology, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken, Germany
| | - Youngsook Lee
- Department of Life Science, Pohang University of Science and Technology, Pohang, South Korea
| | - Katrin Philippar
- Plant Biology, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken, Germany
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Voith von Voithenberg L, Lamb DC. Single Pair Förster Resonance Energy Transfer: A Versatile Tool To Investigate Protein Conformational Dynamics. Bioessays 2018; 40. [DOI: 10.1002/bies.201700078] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 12/05/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Lena Voith von Voithenberg
- Department Chemie; Center for Nanoscience (CeNS); Center for Integrated Protein Science Munich (CIPSM); Nanosystem Initiative Munich (NIM); Ludwig-Maximilians-Universität München; Butenandtstr. 5-13 81377 München Germany
- BIOSS Centre for Signalling Studies; Schänzlestr. 18 79104 Freiburg Germany
| | - Don C. Lamb
- Department Chemie; Center for Nanoscience (CeNS); Center for Integrated Protein Science Munich (CIPSM); Nanosystem Initiative Munich (NIM); Ludwig-Maximilians-Universität München; Butenandtstr. 5-13 81377 München Germany
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Sánchez-Rico C, Voith von Voithenberg L, Warner L, Lamb DC, Sattler M. Effects of Fluorophore Attachment on Protein Conformation and Dynamics Studied by spFRET and NMR Spectroscopy. Chemistry 2017; 23:14267-14277. [PMID: 28799205 DOI: 10.1002/chem.201702423] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [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: 05/28/2017] [Indexed: 12/28/2022]
Abstract
Fluorescence-based techniques are widely used to study biomolecular conformations, intra- and intermolecular interactions, and conformational dynamics of macromolecules. Especially for fluorescence-based single-molecule experiments, the choice of the fluorophore and labeling position are highly important. In this work, we studied the biophysical and structural effects that are associated with the conjugation of fluorophores to cysteines in the splicing factor U2AF65 by using single pair Förster resonance energy transfer (FRET) and nuclear magnetic resonance (NMR) spectroscopy. It is shown that certain acceptor fluorophores are advantageous depending on the experiments performed. The effects of dye attachment on the protein conformation were characterized using heteronuclear NMR experiments. The presence of hydrophobic and aromatic moieties in the fluorophores can significantly affect the conformation of the conjugated protein, presumably by transient interactions with the protein surface. Guidelines are provided for carefully choosing fluorophores, considering their photophysical properties and chemical features for the design of FRET experiments, and for minimizing artifacts.
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Affiliation(s)
- Carolina Sánchez-Rico
- Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85747, Garching, Germany
| | - Lena Voith von Voithenberg
- Physical Chemistry, Department of Chemistry, Munich Center for Integrated Protein Science, Nanosystems Initiative Munich and Centre for Nanoscience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Lisa Warner
- Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85747, Garching, Germany
| | - Don C Lamb
- Physical Chemistry, Department of Chemistry, Munich Center for Integrated Protein Science, Nanosystems Initiative Munich and Centre for Nanoscience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85747, Garching, Germany
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von Voithenberg LV, Barth A, Tyagi S, Koehler C, Lemke EA, Lamb DC. Conformational Dynamics of Molecular Chaperones Investigated by Single Molecule Multicolor Förster Resonance Energy Transfer. Biophys J 2015. [DOI: 10.1016/j.bpj.2014.11.2748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Gietl A, Holzmeister P, Blombach F, Schulz S, von Voithenberg LV, Lamb DC, Werner F, Tinnefeld P, Grohmann D. Eukaryotic and archaeal TBP and TFB/TF(II)B follow different promoter DNA bending pathways. Nucleic Acids Res 2014; 42:6219-31. [PMID: 24744242 PMCID: PMC4041446 DOI: 10.1093/nar/gku273] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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: 10/28/2013] [Revised: 03/21/2014] [Accepted: 03/24/2014] [Indexed: 02/01/2023] Open
Abstract
During transcription initiation, the promoter DNA is recognized and bent by the basal transcription factor TATA-binding protein (TBP). Subsequent association of transcription factor B (TFB) with the TBP-DNA complex is followed by the recruitment of the ribonucleic acid polymerase resulting in the formation of the pre-initiation complex. TBP and TFB/TF(II)B are highly conserved in structure and function among the eukaryotic-archaeal domain but intriguingly have to operate under vastly different conditions. Employing single-pair fluorescence resonance energy transfer, we monitored DNA bending by eukaryotic and archaeal TBPs in the absence and presence of TFB in real-time. We observed that the lifetime of the TBP-DNA interaction differs significantly between the archaeal and eukaryotic system. We show that the eukaryotic DNA-TBP interaction is characterized by a linear, stepwise bending mechanism with an intermediate state distinguished by a distinct bending angle. TF(II)B specifically stabilizes the fully bent TBP-promoter DNA complex and we identify this step as a regulatory checkpoint. In contrast, the archaeal TBP-DNA interaction is extremely dynamic and TBP from the archaeal organism Sulfolobus acidocaldarius strictly requires TFB for DNA bending. Thus, we demonstrate that transcription initiation follows diverse pathways on the way to the formation of the pre-initiation complex.
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Affiliation(s)
- Andreas Gietl
- Physikalische und Theoretische Chemie - NanoBioSciences, Technische Universität Braunschweig, Hans-Sommer-Strasse 10, 38106 Braunschweig, Germany
| | - Phil Holzmeister
- Physikalische und Theoretische Chemie - NanoBioSciences, Technische Universität Braunschweig, Hans-Sommer-Strasse 10, 38106 Braunschweig, Germany
| | - Fabian Blombach
- RNAP Laboratory, University College London, Institute of Structural and Molecular Biology, Division of Biosciences, Gower St., London WC1E 6BT, UK
| | - Sarah Schulz
- Physikalische und Theoretische Chemie - NanoBioSciences, Technische Universität Braunschweig, Hans-Sommer-Strasse 10, 38106 Braunschweig, Germany
| | - Lena Voith von Voithenberg
- Department of Chemistry, Center for Nanoscience (CeNS) and Center for Integrated Protein Science Munich (CiPSM), Ludwig Maximilian University, Butenandtstraße 11, 81377 Munich, Germany
| | - Don C Lamb
- Department of Chemistry, Center for Nanoscience (CeNS) and Center for Integrated Protein Science Munich (CiPSM), Ludwig Maximilian University, Butenandtstraße 11, 81377 Munich, Germany
| | - Finn Werner
- RNAP Laboratory, University College London, Institute of Structural and Molecular Biology, Division of Biosciences, Gower St., London WC1E 6BT, UK
| | - Philip Tinnefeld
- Physikalische und Theoretische Chemie - NanoBioSciences, Technische Universität Braunschweig, Hans-Sommer-Strasse 10, 38106 Braunschweig, Germany
| | - Dina Grohmann
- Physikalische und Theoretische Chemie - NanoBioSciences, Technische Universität Braunschweig, Hans-Sommer-Strasse 10, 38106 Braunschweig, Germany
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Voith von Voithenberg L, Rico CS, Warner L, Zhang Y, Sattler M, Lamb DC. Conformational Dynamics During Spliceosome Assembly Investigated by Single-Pair FRET. Biophys J 2014. [DOI: 10.1016/j.bpj.2013.11.2635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Zimmermann D, Abdel Motaal B, Voith von Voithenberg L, Schliwa M, Ökten Z. Diffusion of myosin V on microtubules: a fine-tuned interaction for which E-hooks are dispensable. PLoS One 2011; 6:e25473. [PMID: 21966532 PMCID: PMC3180451 DOI: 10.1371/journal.pone.0025473] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 09/05/2011] [Indexed: 01/15/2023] Open
Abstract
Organelle transport in eukaryotes employs both microtubule and actin tracks to deliver cargo effectively to their destinations, but the question of how the two systems cooperate is still largely unanswered. Recently, in vitro studies revealed that the actin-based processive motor myosin V also binds to, and diffuses along microtubules. This biophysical trick enables cells to exploit both tracks for the same transport process without switching motors. The detailed mechanisms underlying this behavior remain to be solved. By means of single molecule Total Internal Reflection Microscopy (TIRFM), we show here that electrostatic tethering between the positively charged loop 2 and the negatively charged C-terminal E-hooks of microtubules is dispensable. Furthermore, our data indicate that in addition to charge-charge interactions, other interaction forces such as non-ionic attraction might account for myosin V diffusion. These findings provide evidence for a novel way of myosin tethering to microtubules that does not interfere with other E-hook-dependent processes.
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Affiliation(s)
- Dennis Zimmermann
- Institute for Anatomy and Cell Biology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Basma Abdel Motaal
- Institute for Anatomy and Cell Biology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | | | - Manfred Schliwa
- Institute for Anatomy and Cell Biology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Zeynep Ökten
- Institute for Anatomy and Cell Biology, Ludwig-Maximilians-University of Munich, Munich, Germany
- * E-mail:
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