1
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Klingelhuber F, Frendo-Cumbo S, Omar-Hmeadi M, Massier L, Kakimoto P, Taylor AJ, Couchet M, Ribicic S, Wabitsch M, Messias AC, Iuso A, Müller TD, Rydén M, Mejhert N, Krahmer N. A spatiotemporal proteomic map of human adipogenesis. Nat Metab 2024:10.1038/s42255-024-01025-8. [PMID: 38565923 DOI: 10.1038/s42255-024-01025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 03/07/2024] [Indexed: 04/04/2024]
Abstract
White adipocytes function as major energy reservoirs in humans by storing substantial amounts of triglycerides, and their dysfunction is associated with metabolic disorders; however, the mechanisms underlying cellular specialization during adipogenesis remain unknown. Here, we generate a spatiotemporal proteomic atlas of human adipogenesis, which elucidates cellular remodelling as well as the spatial reorganization of metabolic pathways to optimize cells for lipid accumulation and highlights the coordinated regulation of protein localization and abundance during adipocyte formation. We identify compartment-specific regulation of protein levels and localization changes of metabolic enzymes to reprogramme branched-chain amino acids and one-carbon metabolism to provide building blocks and reduction equivalents. Additionally, we identify C19orf12 as a differentiation-induced adipocyte lipid droplet protein that interacts with the translocase of the outer membrane complex of lipid droplet-associated mitochondria and regulates adipocyte lipid storage by determining the capacity of mitochondria to metabolize fatty acids. Overall, our study provides a comprehensive resource for understanding human adipogenesis and for future discoveries in the field.
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Affiliation(s)
- Felix Klingelhuber
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Scott Frendo-Cumbo
- Department of Medicine (H7), Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Muhmmad Omar-Hmeadi
- Department of Medicine (H7), Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Lucas Massier
- Department of Medicine (H7), Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Pamela Kakimoto
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Austin J Taylor
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Morgane Couchet
- Department of Medicine (H7), Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Sara Ribicic
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Martin Wabitsch
- Center for Rare Endocrine Diseases, Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics and Adolescent Medicine, Ulm University Medical Centre, Ulm, Germany
| | - Ana C Messias
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum München, Neuherberg, Germany
- Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of Munich, Garching, Germany
| | - Arcangela Iuso
- Institute of Neurogenomics, Helmholtz Zentrum München, Neuherberg, Germany
- Institute of Human Genetics, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Timo D Müller
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Walther-Straub Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University Munich (LMU), Munich, Germany
| | - Mikael Rydén
- Department of Medicine (H7), Karolinska Institutet, Huddinge, Stockholm, Sweden
- Endocrinology unit, Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Niklas Mejhert
- Department of Medicine (H7), Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Natalie Krahmer
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany.
- German Center for Diabetes Research (DZD), Neuherberg, Germany.
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2
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Zanuttigh E, Derderian K, Güra MA, Geerlof A, Di Meo I, Cavestro C, Hempfling S, Ortiz-Collazos S, Mauthe M, Kmieć T, Cammarota E, Panzeri MC, Klopstock T, Sattler M, Winkelmann J, Messias AC, Iuso A. Identification of Autophagy as a Functional Target Suitable for the Pharmacological Treatment of Mitochondrial Membrane Protein-Associated Neurodegeneration (MPAN) In Vitro. Pharmaceutics 2023; 15:pharmaceutics15010267. [PMID: 36678896 PMCID: PMC9862353 DOI: 10.3390/pharmaceutics15010267] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Mitochondrial membrane protein-associated neurodegeneration (MPAN) is a relentlessly progressive neurodegenerative disorder caused by mutations in the C19orf12 gene. C19orf12 has been implicated in playing a role in lipid metabolism, mitochondrial function, and autophagy, however, the precise functions remain unknown. To identify new robust cellular targets for small compound treatments, we evaluated reported mitochondrial function alterations, cellular signaling, and autophagy in a large cohort of MPAN patients and control fibroblasts. We found no consistent alteration of mitochondrial functions or cellular signaling messengers in MPAN fibroblasts. In contrast, we found that autophagy initiation is consistently impaired in MPAN fibroblasts and show that C19orf12 expression correlates with the amount of LC3 puncta, an autophagy marker. Finally, we screened 14 different autophagy modulators to test which can restore this autophagy defect. Amongst these compounds, carbamazepine, ABT-737, LY294002, oridonin, and paroxetine could restore LC3 puncta in the MPAN fibroblasts, identifying them as novel potential therapeutic compounds to treat MPAN. In summary, our study confirms a role for C19orf12 in autophagy, proposes LC3 puncta as a functionally robust and consistent readout for testing compounds, and pinpoints potential therapeutic compounds for MPAN.
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Affiliation(s)
- Enrica Zanuttigh
- Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Kevork Derderian
- Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Miriam A. Güra
- Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Arie Geerlof
- Protein Expression and Purification Facility, Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Ivano Di Meo
- Medical Genetics and Neurogenetics Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy
| | - Chiara Cavestro
- Medical Genetics and Neurogenetics Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy
| | - Stefan Hempfling
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of Munich, 85747 Garching, Germany
| | - Stephanie Ortiz-Collazos
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of Munich, 85747 Garching, Germany
| | - Mario Mauthe
- Molecular Cell Biology Section, Department of Biomedical Sciences of Cells & Systems, University of Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
- Expertise Center Movement Disorders Groningen, University Medical Center Groningen, 9713 AV Groningen, The Netherlands
| | - Tomasz Kmieć
- Department of Neurology and Epileptology, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland
| | - Eugenia Cammarota
- Alembic, Experimental Imaging Center, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Maria Carla Panzeri
- Alembic, Experimental Imaging Center, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Thomas Klopstock
- Department of Neurology, Friedrich-Baur-Institute, University Hospital of the Ludwig-Maximilians-University (LMU), 80336 Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), 81377 Munich, Germany
- German Center for Neurodegenerative Diseases (DZNE), 81377 Munich, Germany
| | - Michael Sattler
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of Munich, 85747 Garching, Germany
| | - Juliane Winkelmann
- Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Institute of Human Genetics, Klinikum Rechts der Isar, Technical University of Munich, 81675 Munich, Germany
| | - Ana C. Messias
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of Munich, 85747 Garching, Germany
| | - Arcangela Iuso
- Institute of Neurogenomics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Institute of Human Genetics, Klinikum Rechts der Isar, Technical University of Munich, 81675 Munich, Germany
- Correspondence:
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3
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Chora AF, Pedroso D, Kyriakou E, Pejanovic N, Colaço H, Gozzelino R, Barros A, Willmann K, Velho T, Moita CF, Santos I, Pereira P, Carvalho S, Martins FB, Ferreira JA, de Almeida SF, Benes V, Anrather J, Weis S, Soares MP, Geerlof A, Neefjes J, Sattler M, Messias AC, Neves-Costa A, Moita LF. DNA damage independent inhibition of NF-κB transcription by anthracyclines. eLife 2022; 11:77443. [PMID: 36476511 PMCID: PMC9771368 DOI: 10.7554/elife.77443] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Anthracyclines are among the most used and effective anticancer drugs. Their activity has been attributed to DNA double-strand breaks resulting from topoisomerase II poisoning and to eviction of histones from select sites in the genome. Here, we show that the extensively used anthracyclines Doxorubicin, Daunorubicin, and Epirubicin decrease the transcription of nuclear factor kappa B (NF-κB)-dependent gene targets, but not interferon-responsive genes in primary mouse (Mus musculus) macrophages. Using an NMR-based structural approach, we demonstrate that anthracyclines disturb the complexes formed between the NF-κB subunit RelA and its DNA-binding sites. The anthracycline variants Aclarubicin, Doxorubicinone, and the newly developed Dimethyl-doxorubicin, which share anticancer properties with the other anthracyclines but do not induce DNA damage, also suppressed inflammation, thus uncoupling DNA damage from the effects on inflammation. These findings have implications for anticancer therapy and for the development of novel anti-inflammatory drugs with limited side effects for life-threatening conditions such as sepsis.
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Affiliation(s)
- Angelo Ferreira Chora
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Dora Pedroso
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Eleni Kyriakou
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum MünchenNeuherbergGermany,Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of MunichGarchingGermany
| | - Nadja Pejanovic
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Henrique Colaço
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | | | - André Barros
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Katharina Willmann
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Tiago Velho
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal,Centro Hospitalar Lisboa Norte - Hospital de Santa Maria, EPE, Avenida Professor Egas MonizLisbonPortugal
| | - Catarina F Moita
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Isa Santos
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal,Serviço de Cirurgia, Centro Hospitalar de SetúbalSetúbalPortugal
| | - Pedro Pereira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Silvia Carvalho
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Filipa Batalha Martins
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - João A Ferreira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | | | | | - Josef Anrather
- Feil Family Brain and Mind Research Institute, Weill Cornell MedicineNew YorkUnited States
| | - Sebastian Weis
- Institute for Infectious Disease and Infection Control, Friedrich-Schiller UniversityJenaGermany,Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Friedrich-Schiller UniversityJenaGermany,Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI)JenaGermany
| | - Miguel P Soares
- Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Arie Geerlof
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum MünchenNeuherbergGermany
| | - Jacques Neefjes
- Department of Cell and Chemical Biology, LUMCLeidenNetherlands
| | - Michael Sattler
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum MünchenNeuherbergGermany,Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of MunichGarchingGermany
| | - Ana C Messias
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Zentrum MünchenNeuherbergGermany,Bavarian NMR Centre, Department of Bioscience, School of Natural Sciences, Technical University of MunichGarchingGermany
| | - Ana Neves-Costa
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Luis Ferreira Moita
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de CiênciaOeirasPortugal,Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina da Universidade de LisboaLisbonPortugal
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4
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Jussupow A, Messias AC, Stehle R, Geerlof A, Solbak SMØ, Paissoni C, Bach A, Sattler M, Camilloni C. The dynamics of linear polyubiquitin. Sci Adv 2020; 6:6/42/eabc3786. [PMID: 33055165 PMCID: PMC7556843 DOI: 10.1126/sciadv.abc3786] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 08/25/2020] [Indexed: 05/17/2023]
Abstract
Polyubiquitin chains are flexible multidomain proteins, whose conformational dynamics enable them to regulate multiple biological pathways. Their dynamic is determined by the linkage between ubiquitins and by the number of ubiquitin units. Characterizing polyubiquitin behavior as a function of their length is hampered because of increasing system size and conformational variability. Here, we introduce a new approach to efficiently integrating small-angle x-ray scattering with simulations allowing us to accurately characterize the dynamics of linear di-, tri-, and tetraubiquitin in the free state as well as of diubiquitin in complex with NEMO, a central regulator in the NF-κB pathway. Our results show that the behavior of the diubiquitin subunits is independent of the presence of additional ubiquitin modules and that the dynamics of polyubiquitins with different lengths follow a simple model. Together with experimental data from multiple biophysical techniques, we then rationalize the 2:1 NEMO:polyubiquitin binding.
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Affiliation(s)
- Alexander Jussupow
- Department of Chemistry and Institute for Advanced Study, Technical University of Munich, Garching 85747, Germany
| | - Ana C Messias
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg 85764, Germany
- Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Garching 85747, Germany
| | - Ralf Stehle
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg 85764, Germany
- Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Garching 85747, Germany
| | - Arie Geerlof
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg 85764, Germany
- Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Garching 85747, Germany
| | - Sara M Ø Solbak
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Cristina Paissoni
- Dipartimento di Bioscienze, Università degli studi di Milano, 20133 Milano, Italy
| | - Anders Bach
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg 85764, Germany.
- Center for Integrated Protein Science Munich at Department of Chemistry, Technical University of Munich, Garching 85747, Germany
| | - Carlo Camilloni
- Department of Chemistry and Institute for Advanced Study, Technical University of Munich, Garching 85747, Germany.
- Dipartimento di Bioscienze, Università degli studi di Milano, 20133 Milano, Italy
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5
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Niu Z, Prade E, Malideli E, Hille K, Jussupow A, Mideksa YG, Yan L, Qian C, Fleisch M, Messias AC, Sarkar R, Sattler M, Lamb DC, Feige MJ, Camilloni C, Kapurniotu A, Reif B. Structural Insight into IAPP-Derived Amyloid Inhibitors and Their Mechanism of Action. Angew Chem Int Ed Engl 2020; 59:5771-5781. [PMID: 31863711 PMCID: PMC7154662 DOI: 10.1002/anie.201914559] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/13/2019] [Indexed: 11/12/2022]
Abstract
Designed peptides derived from the islet amyloid polypeptide (IAPP) cross-amyloid interaction surface with Aβ (termed interaction surface mimics or ISMs) have been shown to be highly potent inhibitors of Aβ amyloid self-assembly. However, the molecular mechanism of their function is not well understood. Using solution-state and solid-state NMR spectroscopy in combination with ensemble-averaged dynamics simulations and other biophysical methods including TEM, fluorescence spectroscopy and microscopy, and DLS, we characterize ISM structural preferences and interactions. We find that the ISM peptide R3-GI is highly dynamic, can adopt a β-like structure, and oligomerizes into colloid-like assemblies in a process that is reminiscent of liquid-liquid phase separation (LLPS). Our results suggest that such assemblies yield multivalent surfaces for interactions with Aβ40. Sequestration of substrates into these colloid-like structures provides a mechanistic basis for ISM function and the design of novel potent anti-amyloid molecules.
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Affiliation(s)
- Zheng Niu
- Helmholtz-Zentrum München (HMGU)Deutsches Forschungszentrum für Gesundheit und UmweltInstitute of Structural BiologyIngolstädter Landstr. 185764NeuherbergGermany
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
| | - Elke Prade
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
| | - Eleni Malideli
- Technische Universität München (TUM)TUM School of Life SciencesDivision of Peptide BiochemistryEmil-Erlenmeyer-Forum 585354FreisingGermany
| | - Kathleen Hille
- Technische Universität München (TUM)TUM School of Life SciencesDivision of Peptide BiochemistryEmil-Erlenmeyer-Forum 585354FreisingGermany
| | - Alexander Jussupow
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
- Technische Universität München (TUM)Institute for Advanced StudyLichtenbergstr. 2a85748GarchingGermany
| | - Yonatan G. Mideksa
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
- Technische Universität München (TUM)Institute for Advanced StudyLichtenbergstr. 2a85748GarchingGermany
| | - Li‐Mei Yan
- Technische Universität München (TUM)TUM School of Life SciencesDivision of Peptide BiochemistryEmil-Erlenmeyer-Forum 585354FreisingGermany
| | - Chen Qian
- Ludwig-Maximilians-Universität, MunichDepartment of ChemistryCenter for Integrated Protein Science Munich (CIPSM)Nanosystems Initiative Munich (NIM) and Center for Nanoscience (CeNS)Butenandtstr. 581377MünchenGermany
| | - Markus Fleisch
- Helmholtz-Zentrum München (HMGU)Deutsches Forschungszentrum für Gesundheit und UmweltInstitute of Structural BiologyIngolstädter Landstr. 185764NeuherbergGermany
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
| | - Ana C. Messias
- Helmholtz-Zentrum München (HMGU)Deutsches Forschungszentrum für Gesundheit und UmweltInstitute of Structural BiologyIngolstädter Landstr. 185764NeuherbergGermany
| | - Riddhiman Sarkar
- Helmholtz-Zentrum München (HMGU)Deutsches Forschungszentrum für Gesundheit und UmweltInstitute of Structural BiologyIngolstädter Landstr. 185764NeuherbergGermany
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
| | - Michael Sattler
- Helmholtz-Zentrum München (HMGU)Deutsches Forschungszentrum für Gesundheit und UmweltInstitute of Structural BiologyIngolstädter Landstr. 185764NeuherbergGermany
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
| | - Don C. Lamb
- Ludwig-Maximilians-Universität, MunichDepartment of ChemistryCenter for Integrated Protein Science Munich (CIPSM)Nanosystems Initiative Munich (NIM) and Center for Nanoscience (CeNS)Butenandtstr. 581377MünchenGermany
| | - Matthias J. Feige
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
- Technische Universität München (TUM)Institute for Advanced StudyLichtenbergstr. 2a85748GarchingGermany
| | - Carlo Camilloni
- Technische Universität München (TUM)Institute for Advanced StudyLichtenbergstr. 2a85748GarchingGermany
- Università degli Studi di MilanoDipartimento di BioscienzeVia Giovanni Celoria 2620133MilanoItaly
| | - Aphrodite Kapurniotu
- Technische Universität München (TUM)TUM School of Life SciencesDivision of Peptide BiochemistryEmil-Erlenmeyer-Forum 585354FreisingGermany
| | - Bernd Reif
- Helmholtz-Zentrum München (HMGU)Deutsches Forschungszentrum für Gesundheit und UmweltInstitute of Structural BiologyIngolstädter Landstr. 185764NeuherbergGermany
- Technische Universität München (TUM)Munich Center for Integrated Protein Science (CIPS-M) at the Department of ChemistryLichtenbergstr. 485747GarchingGermany
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6
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Niu Z, Prade E, Malideli E, Hille K, Jussupow A, Mideksa YG, Yan L, Qian C, Fleisch M, Messias AC, Sarkar R, Sattler M, Lamb DC, Feige MJ, Camilloni C, Kapurniotu A, Reif B. Structural Insight into IAPP‐Derived Amyloid Inhibitors and Their Mechanism of Action. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zheng Niu
- Helmholtz-Zentrum München (HMGU) Deutsches Forschungszentrum für Gesundheit und Umwelt Institute of Structural Biology Ingolstädter Landstr. 1 85764 Neuherberg Germany
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
| | - Elke Prade
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
| | - Eleni Malideli
- Technische Universität München (TUM) TUM School of Life Sciences Division of Peptide Biochemistry Emil-Erlenmeyer-Forum 5 85354 Freising Germany
| | - Kathleen Hille
- Technische Universität München (TUM) TUM School of Life Sciences Division of Peptide Biochemistry Emil-Erlenmeyer-Forum 5 85354 Freising Germany
| | - Alexander Jussupow
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
- Technische Universität München (TUM) Institute for Advanced Study Lichtenbergstr. 2a 85748 Garching Germany
| | - Yonatan G. Mideksa
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
- Technische Universität München (TUM) Institute for Advanced Study Lichtenbergstr. 2a 85748 Garching Germany
| | - Li‐Mei Yan
- Technische Universität München (TUM) TUM School of Life Sciences Division of Peptide Biochemistry Emil-Erlenmeyer-Forum 5 85354 Freising Germany
| | - Chen Qian
- Ludwig-Maximilians-Universität, Munich Department of Chemistry Center for Integrated Protein Science Munich (CIPSM) Nanosystems Initiative Munich (NIM) and Center for Nanoscience (CeNS) Butenandtstr. 5 81377 München Germany
| | - Markus Fleisch
- Helmholtz-Zentrum München (HMGU) Deutsches Forschungszentrum für Gesundheit und Umwelt Institute of Structural Biology Ingolstädter Landstr. 1 85764 Neuherberg Germany
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
| | - Ana C. Messias
- Helmholtz-Zentrum München (HMGU) Deutsches Forschungszentrum für Gesundheit und Umwelt Institute of Structural Biology Ingolstädter Landstr. 1 85764 Neuherberg Germany
| | - Riddhiman Sarkar
- Helmholtz-Zentrum München (HMGU) Deutsches Forschungszentrum für Gesundheit und Umwelt Institute of Structural Biology Ingolstädter Landstr. 1 85764 Neuherberg Germany
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
| | - Michael Sattler
- Helmholtz-Zentrum München (HMGU) Deutsches Forschungszentrum für Gesundheit und Umwelt Institute of Structural Biology Ingolstädter Landstr. 1 85764 Neuherberg Germany
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
| | - Don C. Lamb
- Ludwig-Maximilians-Universität, Munich Department of Chemistry Center for Integrated Protein Science Munich (CIPSM) Nanosystems Initiative Munich (NIM) and Center for Nanoscience (CeNS) Butenandtstr. 5 81377 München Germany
| | - Matthias J. Feige
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
- Technische Universität München (TUM) Institute for Advanced Study Lichtenbergstr. 2a 85748 Garching Germany
| | - Carlo Camilloni
- Technische Universität München (TUM) Institute for Advanced Study Lichtenbergstr. 2a 85748 Garching Germany
- Università degli Studi di Milano Dipartimento di Bioscienze Via Giovanni Celoria 26 20133 Milano Italy
| | - Aphrodite Kapurniotu
- Technische Universität München (TUM) TUM School of Life Sciences Division of Peptide Biochemistry Emil-Erlenmeyer-Forum 5 85354 Freising Germany
| | - Bernd Reif
- Helmholtz-Zentrum München (HMGU) Deutsches Forschungszentrum für Gesundheit und Umwelt Institute of Structural Biology Ingolstädter Landstr. 1 85764 Neuherberg Germany
- Technische Universität München (TUM) Munich Center for Integrated Protein Science (CIPS-M) at the Department of Chemistry Lichtenbergstr. 4 85747 Garching Germany
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7
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Pfuhlmann K, Schriever SC, Baumann P, Kabra DG, Harrison L, Mazibuko-Mbeje SE, Contreras RE, Kyriakou E, Simonds SE, Tiganis T, Cowley MA, Woods SC, Jastroch M, Clemmensen C, De Angelis M, Schramm KW, Sattler M, Messias AC, Tschöp MH, Pfluger PT. Erratum. Celastrol-Induced Weight Loss Is Driven by Hypophagia and Independent From UCP1. Diabetes 2018;67:2456-2465. Diabetes 2019; 68:676. [PMID: 30635274 PMCID: PMC6385754 DOI: 10.2337/db19-er03a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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8
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Kyriakou E, Schmidt S, Dodd GT, Pfuhlmann K, Simonds SE, Lenhart D, Geerlof A, Schriever SC, De Angelis M, Schramm KW, Plettenburg O, Cowley MA, Tiganis T, Tschöp MH, Pfluger PT, Sattler M, Messias AC. Celastrol Promotes Weight Loss in Diet-Induced Obesity by Inhibiting the Protein Tyrosine Phosphatases PTP1B and TCPTP in the Hypothalamus. J Med Chem 2018; 61:11144-11157. [PMID: 30525586 DOI: 10.1021/acs.jmedchem.8b01224] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Celastrol is a natural pentacyclic triterpene used in traditional Chinese medicine with significant weight-lowering effects. Celastrol-administered mice at 100 μg/kg decrease food consumption and body weight via a leptin-dependent mechanism, yet its molecular targets in this pathway remain elusive. Here, we demonstrate in vivo that celastrol-induced weight loss is largely mediated by the inhibition of leptin negative regulators protein tyrosine phosphatase (PTP) 1B (PTP1B) and T-cell PTP (TCPTP) in the arcuate nucleus (ARC) of the hypothalamus. We show in vitro that celastrol binds reversibly and inhibits noncompetitively PTP1B and TCPTP. NMR data map the binding site to an allosteric site in the catalytic domain that is in proximity of the active site. By using a panel of PTPs implicated in hypothalamic leptin signaling, we show that celastrol additionally inhibited PTEN and SHP2 but had no activity toward other phosphatases of the PTP family. These results suggest that PTP1B and TCPTP in the ARC are essential for celastrol's weight lowering effects in adult obese mice.
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Affiliation(s)
- Eleni Kyriakou
- Institute of Structural Biology , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry , Technical University of Munich , 85747 Garching , Germany
| | - Stefanie Schmidt
- Institute of Structural Biology , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry , Technical University of Munich , 85747 Garching , Germany
| | - Garron T Dodd
- Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, and Department of Biochemistry and Molecular Biology , Monash University , Victoria 3800 , Australia
| | - Katrin Pfuhlmann
- Research Unit Neurobiology of Diabetes , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Institute for Diabetes and Obesity , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Division of Metabolic Diseases , Technische Universität München , 80333 Munich , Germany.,German Center for Diabetes Research (DZD) , 85764 Neuherberg , Germany
| | - Stephanie E Simonds
- Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, and Department of Physiology , Monash University , Victoria 3800 , Australia
| | - Dominik Lenhart
- Institute of Structural Biology , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry , Technical University of Munich , 85747 Garching , Germany.,Institute of Medicinal Chemistry , Helmholtz Zentrum München , 85764 Neuherberg , Germany
| | - Arie Geerlof
- Institute of Structural Biology , Helmholtz Zentrum München , 85764 Neuherberg , Germany
| | - Sonja C Schriever
- Research Unit Neurobiology of Diabetes , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Institute for Diabetes and Obesity , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,German Center for Diabetes Research (DZD) , 85764 Neuherberg , Germany
| | - Meri De Angelis
- Molecular EXposomics , Helmholtz Zentrum München , 85764 Neuherberg , Germany
| | - Karl-Werner Schramm
- Molecular EXposomics , Helmholtz Zentrum München , 85764 Neuherberg , Germany
| | - Oliver Plettenburg
- Institute of Medicinal Chemistry , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Institute of Organic Chemistry , Leibniz Universität Hannover , 30167 Hannover , Germany
| | - Michael A Cowley
- Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, and Department of Physiology , Monash University , Victoria 3800 , Australia
| | - Tony Tiganis
- Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, and Department of Biochemistry and Molecular Biology , Monash University , Victoria 3800 , Australia.,Peter MacCallum Cancer Centre , Melbourne , Victoria 3000 , Australia
| | - Matthias H Tschöp
- Institute for Diabetes and Obesity , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Division of Metabolic Diseases , Technische Universität München , 80333 Munich , Germany.,German Center for Diabetes Research (DZD) , 85764 Neuherberg , Germany
| | - Paul T Pfluger
- Research Unit Neurobiology of Diabetes , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Institute for Diabetes and Obesity , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,German Center for Diabetes Research (DZD) , 85764 Neuherberg , Germany
| | - Michael Sattler
- Institute of Structural Biology , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry , Technical University of Munich , 85747 Garching , Germany
| | - Ana C Messias
- Institute of Structural Biology , Helmholtz Zentrum München , 85764 Neuherberg , Germany.,Biomolecular NMR and Center for Integrated Protein Science Munich at Department of Chemistry , Technical University of Munich , 85747 Garching , Germany
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9
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Pfuhlmann K, Schriever SC, Baumann P, Kabra DG, Harrison L, Mazibuko-Mbeje SE, Contreras RE, Kyriakou E, Simonds SE, Tiganis T, Cowley MA, Woods SC, Jastroch M, Clemmensen C, De Angelis M, Schramm KW, Sattler M, Messias AC, Tschöp MH, Pfluger PT. Celastrol-Induced Weight Loss Is Driven by Hypophagia and Independent From UCP1. Diabetes 2018; 67:2456-2465. [PMID: 30158241 DOI: 10.2337/db18-0146] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 08/03/2018] [Indexed: 11/13/2022]
Abstract
Celastrol, a plant-derived constituent of traditional Chinese medicine, has been proposed to offer significant potential as an antiobesity drug. However, the molecular mechanism for this activity is unknown. We show that the weight-lowering effects of celastrol are driven by decreased food consumption. Although young Lep ob mice respond with a decrease in food intake and body weight, adult Lep db and Lep ob mice are unresponsive to celastrol, suggesting that functional leptin signaling in adult mice is required to elicit celastrol's catabolic actions. Protein tyrosine phosphatase 1 (PTP1B), a leptin negative-feedback regulator, has been previously reported to be one of celastrol's targets. However, we found that global PTP1B knockout (KO) and wild-type (WT) mice have comparable weight loss and hypophagia when treated with celastrol. Increased levels of uncoupling protein 1 (UCP1) in subcutaneous white and brown adipose tissue suggest celastrol-induced thermogenesis as a further mechanism. However, diet-induced obese UCP1 WT and KO mice have comparable weight loss upon celastrol treatment, and celastrol treatment has no effect on energy expenditure under ambient housing or thermoneutral conditions. Overall, our results suggest that celastrol-induced weight loss is hypophagia driven and age-dependently mediated by functional leptin signaling. Our data encourage reconsideration of therapeutic antiobesity strategies built on leptin sensitization.
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Affiliation(s)
- Katrin Pfuhlmann
- Research Unit Neurobiology of Diabetes, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Sonja C Schriever
- Research Unit Neurobiology of Diabetes, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Peter Baumann
- Research Unit Neurobiology of Diabetes, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Dhiraj G Kabra
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Institute for Clinical Biochemistry and Pathobiochemistry, German Diabetes Center, Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Luke Harrison
- Research Unit Neurobiology of Diabetes, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Sithandiwe E Mazibuko-Mbeje
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
| | - Raian E Contreras
- Research Unit Neurobiology of Diabetes, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Eleni Kyriakou
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Biomolecular Nuclear Magnetic Resonance and Center for Integrated Protein Science Munich at Department Chemie, Technische Universität München, Garching, Germany
| | - Stephanie E Simonds
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, Victoria, Australia
| | - Tony Tiganis
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, Victoria, Australia
| | - Michael A Cowley
- Department of Physiology, Monash University, Melbourne, Victoria, Australia
| | - Stephen C Woods
- Psychiatry and Behavioral Neuroscience, Metabolic Diseases Institute, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Martin Jastroch
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Christoffer Clemmensen
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Meri De Angelis
- Molecular EXposomics, Helmholtz Zentrum München, Neuherberg, Germany
| | | | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Biomolecular Nuclear Magnetic Resonance and Center for Integrated Protein Science Munich at Department Chemie, Technische Universität München, Garching, Germany
| | - Ana C Messias
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Biomolecular Nuclear Magnetic Resonance and Center for Integrated Protein Science Munich at Department Chemie, Technische Universität München, Garching, Germany
| | - Matthias H Tschöp
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- Division of Metabolic Diseases, Technische Universität München, Munich, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Paul T Pfluger
- Research Unit Neurobiology of Diabetes, Helmholtz Zentrum München, Neuherberg, Germany
- Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
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10
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Iuso A, Wiersma M, Schüller HJ, Pode-Shakked B, Marek-Yagel D, Grigat M, Schwarzmayr T, Berutti R, Alhaddad B, Kanon B, Grzeschik NA, Okun JG, Perles Z, Salem Y, Barel O, Vardi A, Rubinshtein M, Tirosh T, Dubnov-Raz G, Messias AC, Terrile C, Barshack I, Volkov A, Avivi C, Eyal E, Mastantuono E, Kumbar M, Abudi S, Braunisch M, Strom TM, Meitinger T, Hoffmann GF, Prokisch H, Haack TB, Brundel BJ, Haas D, Sibon OC, Anikster Y. Mutations in PPCS, Encoding Phosphopantothenoylcysteine Synthetase, Cause Autosomal-Recessive Dilated Cardiomyopathy. Am J Hum Genet 2018; 102:1018-1030. [PMID: 29754768 DOI: 10.1016/j.ajhg.2018.03.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/22/2018] [Indexed: 01/25/2023] Open
Abstract
Coenzyme A (CoA) is an essential metabolic cofactor used by around 4% of cellular enzymes. Its role is to carry and transfer acetyl and acyl groups to other molecules. Cells can synthesize CoA de novo from vitamin B5 (pantothenate) through five consecutive enzymatic steps. Phosphopantothenoylcysteine synthetase (PPCS) catalyzes the second step of the pathway during which phosphopantothenate reacts with ATP and cysteine to form phosphopantothenoylcysteine. Inborn errors of CoA biosynthesis have been implicated in neurodegeneration with brain iron accumulation (NBIA), a group of rare neurological disorders characterized by accumulation of iron in the basal ganglia and progressive neurodegeneration. Exome sequencing in five individuals from two unrelated families presenting with dilated cardiomyopathy revealed biallelic mutations in PPCS, linking CoA synthesis with a cardiac phenotype. Studies in yeast and fruit flies confirmed the pathogenicity of identified mutations. Biochemical analysis revealed a decrease in CoA levels in fibroblasts of all affected individuals. CoA biosynthesis can occur with pantethine as a source independent from PPCS, suggesting pantethine as targeted treatment for the affected individuals still alive.
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11
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Jung B, Messias AC, Schorpp K, Geerlof A, Schneider G, Saur D, Hadian K, Sattler M, Wanker EE, Hasenöder S, Lickert H. Novel small molecules targeting ciliary transport of Smoothened and oncogenic Hedgehog pathway activation. Sci Rep 2016; 6:22540. [PMID: 26931153 PMCID: PMC4773810 DOI: 10.1038/srep22540] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 02/15/2016] [Indexed: 01/04/2023] Open
Abstract
Trafficking of the G protein-coupled receptor (GPCR) Smoothened (Smo) to the primary cilium (PC) is a potential target to inhibit oncogenic Hh pathway activation in a large number of tumors. One drawback is the appearance of Smo mutations that resist drug treatment, which is a common reason for cancer treatment failure. Here, we undertook a high content screen with compounds in preclinical or clinical development and identified ten small molecules that prevent constitutive active mutant SmoM2 transport into PC for subsequent Hh pathway activation. Eight of the ten small molecules act through direct interference with the G protein-coupled receptor associated sorting protein 2 (Gprasp2)-SmoM2 ciliary targeting complex, whereas one antagonist of ionotropic receptors prevents intracellular trafficking of Smo to the PC. Together, these findings identify several compounds with the potential to treat drug-resistant SmoM2-driven cancer forms, but also reveal off-target effects of established drugs in the clinics.
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Affiliation(s)
- Bomi Jung
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Germany.,Institute of Stem Cell Research, Helmholtz Zentrum München, Germany
| | - Ana C Messias
- Institute of Structural Biology, Helmholtz Zentrum München, Germany.,Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemistry, Technische Universität München, 85747 Garching, Germany
| | - Kenji Schorpp
- Assay Development and Screening Platform, Helmholtz Zentrum München, Germany
| | - Arie Geerlof
- Institute of Structural Biology, Helmholtz Zentrum München, Germany
| | - Günter Schneider
- Department of Internal Medicine II, Klinikum rechts der Isar, München, Germany.,Technische Universität München, München, Germany
| | - Dieter Saur
- Department of Internal Medicine II, Klinikum rechts der Isar, München, Germany.,Technische Universität München, München, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kamyar Hadian
- Assay Development and Screening Platform, Helmholtz Zentrum München, Germany
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, Germany.,Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemistry, Technische Universität München, 85747 Garching, Germany
| | - Erich E Wanker
- Neuroproteomics, Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Stefan Hasenöder
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Germany.,Institute of Stem Cell Research, Helmholtz Zentrum München, Germany
| | - Heiko Lickert
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, Germany.,Institute of Stem Cell Research, Helmholtz Zentrum München, Germany.,Technische Universität München, München, Germany.,German Center for Diabetes Research (DZD), Germany
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12
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Jung B, Padula D, Burtscher I, Landerer C, Lutter D, Theis F, Messias AC, Geerlof A, Sattler M, Kremmer E, Boldt K, Ueffing M, Lickert H. Pitchfork and Gprasp2 Target Smoothened to the Primary Cilium for Hedgehog Pathway Activation. PLoS One 2016; 11:e0149477. [PMID: 26901434 PMCID: PMC4763541 DOI: 10.1371/journal.pone.0149477] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 08/07/2015] [Accepted: 01/31/2016] [Indexed: 01/14/2023] Open
Abstract
The seven-transmembrane receptor Smoothened (Smo) activates all Hedgehog (Hh) signaling by translocation into the primary cilia (PC), but how this is regulated is not well understood. Here we show that Pitchfork (Pifo) and the G protein-coupled receptor associated sorting protein 2 (Gprasp2) are essential components of an Hh induced ciliary targeting complex able to regulate Smo translocation to the PC. Depletion of Pifo or Gprasp2 leads to failure of Smo translocation to the PC and lack of Hh target gene activation. Together, our results identify a novel protein complex that is regulated by Hh signaling and required for Smo ciliary trafficking and Hh pathway activation.
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Affiliation(s)
- Bomi Jung
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- Institute of Stem Cell Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764 München-Neuherberg, Germany
| | - Daniela Padula
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- Institute of Stem Cell Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764 München-Neuherberg, Germany
| | - Ingo Burtscher
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- Institute of Stem Cell Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764 München-Neuherberg, Germany
| | - Cedric Landerer
- Institute of Computational Biology, Helmholtz Zentrum München, München-Neuherberg, Germany
- Department of Ecology & Evolutionary Biology, University of Tennessee, Knoxville TN 37996, United States of America
| | - Dominik Lutter
- Institute of Computational Biology, Helmholtz Zentrum München, München-Neuherberg, Germany
- Institute of Diabetes and Adipositas, Helmholtz Zentrum München, München-Neuherberg, Germany
| | - Fabian Theis
- Institute of Computational Biology, Helmholtz Zentrum München, München-Neuherberg, Germany
| | - Ana C. Messias
- Institute of Structural Biology, Helmholtz Zentrum München, München-Neuherberg, Germany
- Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, 85747 Garching, Germany
| | - Arie Geerlof
- Institute of Structural Biology, Helmholtz Zentrum München, München-Neuherberg, Germany
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, München-Neuherberg, Germany
- Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, 85747 Garching, Germany
| | - Elisabeth Kremmer
- Institute of Molecular Immunology, Helmholtz Zentrum München, München-Neuherberg, Germany
| | - Karsten Boldt
- Department of Protein Science, Helmholtz Zentrum München, München-Neuherberg, Germany
- Centre of Ophthalmology, Institute for Ophthalmology Research, University of Tuebingen, 72076 Tuebingen, Germany
| | - Marius Ueffing
- Department of Protein Science, Helmholtz Zentrum München, München-Neuherberg, Germany
- Centre of Ophthalmology, Institute for Ophthalmology Research, University of Tuebingen, 72076 Tuebingen, Germany
| | - Heiko Lickert
- Institute of Diabetes and Regeneration Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- Institute of Stem Cell Research, Helmholtz Zentrum München, München-Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85764 München-Neuherberg, Germany
- * E-mail:
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13
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Xu T, Brandmaier S, Messias AC, Herder C, Draisma HHM, Demirkan A, Yu Z, Ried JS, Haller T, Heier M, Campillos M, Fobo G, Stark R, Holzapfel C, Adam J, Chi S, Rotter M, Panni T, Quante AS, He Y, Prehn C, Roemisch-Margl W, Kastenmüller G, Willemsen G, Pool R, Kasa K, van Dijk KW, Hankemeier T, Meisinger C, Thorand B, Ruepp A, Hrabé de Angelis M, Li Y, Wichmann HE, Stratmann B, Strauch K, Metspalu A, Gieger C, Suhre K, Adamski J, Illig T, Rathmann W, Roden M, Peters A, van Duijn CM, Boomsma DI, Meitinger T, Wang-Sattler R. Effects of metformin on metabolite profiles and LDL cholesterol in patients with type 2 diabetes. Diabetes Care 2015; 38:1858-67. [PMID: 26251408 DOI: 10.2337/dc15-0658] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [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] [Received: 03/30/2015] [Accepted: 06/24/2015] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Metformin is used as a first-line oral treatment for type 2 diabetes (T2D). However, the underlying mechanism is not fully understood. Here, we aimed to comprehensively investigate the pleiotropic effects of metformin. RESEARCH DESIGN AND METHODS We analyzed both metabolomic and genomic data of the population-based KORA cohort. To evaluate the effect of metformin treatment on metabolite concentrations, we quantified 131 metabolites in fasting serum samples and used multivariable linear regression models in three independent cross-sectional studies (n = 151 patients with T2D treated with metformin [mt-T2D]). Additionally, we used linear mixed-effect models to study the longitudinal KORA samples (n = 912) and performed mediation analyses to investigate the effects of metformin intake on blood lipid profiles. We combined genotyping data with the identified metformin-associated metabolites in KORA individuals (n = 1,809) and explored the underlying pathways. RESULTS We found significantly lower (P < 5.0E-06) concentrations of three metabolites (acyl-alkyl phosphatidylcholines [PCs]) when comparing mt-T2D with four control groups who were not using glucose-lowering oral medication. These findings were controlled for conventional risk factors of T2D and replicated in two independent studies. Furthermore, we observed that the levels of these metabolites decreased significantly in patients after they started metformin treatment during 7 years' follow-up. The reduction of these metabolites was also associated with a lowered blood level of LDL cholesterol (LDL-C). Variations of these three metabolites were significantly associated with 17 genes (including FADS1 and FADS2) and controlled by AMPK, a metformin target. CONCLUSIONS Our results indicate that metformin intake activates AMPK and consequently suppresses FADS, which leads to reduced levels of the three acyl-alkyl PCs and LDL-C. Our findings suggest potential beneficial effects of metformin in the prevention of cardiovascular disease.
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Affiliation(s)
- Tao Xu
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Stefan Brandmaier
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Ana C Messias
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Christian Herder
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany German Center for Diabetes Research, Düsseldorf, Germany
| | - Harmen H M Draisma
- Department of Biological Psychology, Faculty of Psychology and Education, VU University Amsterdam, Amsterdam, the Netherlands EMGO Institute for Health and Care Research, Amsterdam, the Netherlands Neuroscience Campus Amsterdam, Amsterdam, the Netherlands
| | - Ayse Demirkan
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands Department of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands
| | - Zhonghao Yu
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Janina S Ried
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Toomas Haller
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Margit Heier
- Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Monica Campillos
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Gisela Fobo
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Renee Stark
- Institute of Health Economics and Health Care Management, Helmholtz Zentrum München, Neuherberg, Germany
| | - Christina Holzapfel
- Else Kroener-Fresenius-Center for Nutritional Medicine, Faculty of Medicine, Technische Universität München, Munich, Germany
| | - Jonathan Adam
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Shen Chi
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Markus Rotter
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Tommaso Panni
- Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Anne S Quante
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Ying He
- Shanghai Center for Bioinformation Technology, Shanghai, China Bioinformatics Center, Key Laboratory of Systems Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany
| | - Werner Roemisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Gonneke Willemsen
- Department of Biological Psychology, Faculty of Psychology and Education, VU University Amsterdam, Amsterdam, the Netherlands EMGO Institute for Health and Care Research, Amsterdam, the Netherlands
| | - René Pool
- Department of Biological Psychology, Faculty of Psychology and Education, VU University Amsterdam, Amsterdam, the Netherlands EMGO Institute for Health and Care Research, Amsterdam, the Netherlands
| | - Katarina Kasa
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Ko Willems van Dijk
- Department of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands
| | - Thomas Hankemeier
- Faculty of Science, Leiden Academic Centre for Drug Research, Analytical BioSciences, the Netherlands
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Barbara Thorand
- Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Andreas Ruepp
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Martin Hrabé de Angelis
- Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising, Germany German Center for Diabetes Research, Neuherberg, Germany
| | - Yixue Li
- Shanghai Center for Bioinformation Technology, Shanghai, China Bioinformatics Center, Key Laboratory of Systems Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - H-Erich Wichmann
- Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany Institute of Medical Statistics and Epidemiology, Technische Universität München, Munich, Germany
| | - Bernd Stratmann
- Heart and Diabetes Center NRW, Diabetes Center, Ruhr-University Bochum, Bad Oeynhausen, Germany
| | - Konstantin Strauch
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany
| | | | - Christian Gieger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany Faculty of Biology, Ludwig-Maximilians-Universität, Planegg-Martinsried, Germany Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, Qatar
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising, Germany German Center for Diabetes Research, Neuherberg, Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, Qatar Hannover Unified Biobank, Hannover Medical School, Hannover, Germany
| | - Wolfgang Rathmann
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany German Center for Diabetes Research, Düsseldorf, Germany Department of Endocrinology and Diabetology, Medical Faculty, Düsseldorf, Germany
| | - Annette Peters
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany German Center for Diabetes Research, Neuherberg, Germany Department of Environmental Health, Harvard School of Public Health, Boston, MA
| | - Cornelia M van Duijn
- Neuroscience Campus Amsterdam, Amsterdam, the Netherlands Center for Medical Systems Biology, Leiden, the Netherlands
| | - Dorret I Boomsma
- Department of Biological Psychology, Faculty of Psychology and Education, VU University Amsterdam, Amsterdam, the Netherlands EMGO Institute for Health and Care Research, Amsterdam, the Netherlands
| | - Thomas Meitinger
- Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany Institute of Human Genetics, Technische Universität München, Munich, Germany
| | - Rui Wang-Sattler
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg, Germany German Center for Diabetes Research, Neuherberg, Germany
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14
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Abstract
Kinase inhibition is considered to be an important therapeutic target for LRRK2 mediated Parkinson's disease (PD). Many LRRK2 kinase inhibitors have been reported but have yet to be optimized in order to qualify as drug candidates for the treatment of the disease. In order to start a structure-function analysis of such inhibitors, we mutated the active site of Dictyostelium Roco4 kinase to resemble LRRK2. Here, we show saturation transfer difference (STD) NMR and the first cocrystal structures of two potent in vitro inhibitors, LRRK2-IN-1 and compound 19, with mutated Roco4. Our data demonstrate that this system can serve as an excellent tool for the structural characterization and optimization of LRRK2 inhibitors using X-ray crystallography and NMR spectroscopy.
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Affiliation(s)
- Bernd K Gilsbach
- †Department of Cell Biochemistry, University of Groningen, 9747AG Groningen, The Netherlands
| | - Ana C Messias
- ‡Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.,§Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching bei München, Germany
| | - Genta Ito
- ∥University of Dundee, DD1 4HN Dundee, Scotland
| | - Michael Sattler
- ‡Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.,§Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching bei München, Germany
| | | | | | - Arjan Kortholt
- †Department of Cell Biochemistry, University of Groningen, 9747AG Groningen, The Netherlands
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15
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Messias AC, Harnisch C, Ostareck-Lederer A, Sattler M, Ostareck DH. The DICE-binding activity of KH domain 3 of hnRNP K is affected by c-Src-mediated tyrosine phosphorylation. J Mol Biol 2006; 361:470-81. [PMID: 16854432 DOI: 10.1016/j.jmb.2006.06.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [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: 03/06/2006] [Revised: 05/09/2006] [Accepted: 06/12/2006] [Indexed: 10/24/2022]
Abstract
hnRNP K and hnRNP E1/E2 are RNA-binding proteins comprised of three hnRNP K-homology (KH) domains. These proteins are involved in the translational control and stabilization of mRNAs in erythroid cells. hnRNP E1 and hnRNP K regulate the translation of reticulocyte 15-lipoxygenase (r15-LOX) mRNA. Both proteins bind specifically to the differentiation control element (DICE) in the 3' untranslated region (3'UTR) of the r15-LOX mRNA. It has been shown that hnRNP K is a substrate of the tyrosine kinase c-Src and that tyrosine phosphorylation by c-Src inhibits the binding of hnRNP K to the DICE. Here, we investigate which of the three KH domains of hnRNP E1 and hnRNP K mediate the DICE interaction. Using RNA-binding assays, we demonstrate DICE-binding of the KH domains 1 and 3 of hnRNP E1, and KH domain 3 of hnRNP K. Furthermore, with RNA-binding assays, NMR experiments and in vitro translation studies, we show that tyrosine 458 in KH domain 3 of hnRNP K is important for the DICE interaction and we provide evidence that it is a target of c-Src.
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Affiliation(s)
- Ana C Messias
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Meyerhofstr. 1, 69117 Heidelberg, Germany
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16
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Messias AC, Aguiar AP, Brennan L, Salgueiro CA, Saraiva LM, Xavier AV, Turner DL. Solution structures of tetrahaem ferricytochrome c3 from Desulfovibrio vulgaris (Hildenborough) and its K45Q mutant: The molecular basis of cooperativity. Biochimica et Biophysica Acta (BBA) - Bioenergetics 2006; 1757:143-53. [PMID: 16527248 DOI: 10.1016/j.bbabio.2006.01.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2005] [Revised: 01/17/2006] [Accepted: 01/18/2006] [Indexed: 11/26/2022]
Abstract
The NMR structure of the oxidised wild-type cytochrome c3 from Desulfovibrio vulgaris Hildenborough was determined in solution. Using a newly developed methodology, NMR data from the K45Q mutant was then grafted onto data from the wild-type protein to determine the structure in the region of the mutation. The structural origins of the redox-Bohr effect and haem-haem cooperativities are discussed with respect to the redox-related conformational changes observed in solution.
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Affiliation(s)
- Ana C Messias
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Rua da Quinta Grande 6, 2780-156 Oeiras, Portugal
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17
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Backe PH, Messias AC, Ravelli RBG, Sattler M, Cusack S. X-Ray Crystallographic and NMR Studies of the Third KH Domain of hnRNP K in Complex with Single-Stranded Nucleic Acids. Structure 2005; 13:1055-67. [PMID: 16004877 DOI: 10.1016/j.str.2005.04.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [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: 03/22/2005] [Accepted: 04/26/2005] [Indexed: 10/25/2022]
Abstract
The heterogeneous nuclear ribonucleoprotein (hnRNP) K is implicated in multiple functions in the regulation of gene expression and acts as a hub at the intersection of signaling pathways and processes involving nucleic acids. Central to its function is its ability to bind both ssDNA and ssRNA via its KH (hnRNP K homology) domains. We determined crystal structures of hnRNP K KH3 domain complexed with 15-mer and 6-mer (CTC(4)) ssDNAs at 2.4 and 1.8 A resolution, respectively, and show that the KH3 domain binds specifically to both TCCC and CCCC sequences. In parallel, we used NMR to compare the binding affinity and mode of interaction of the KH3 domain with several ssRNA ligands and CTC(4) ssDNA. Based on a structure alignment of the KH3-CTC(4) complex with known structures of other KH domains in complex with ssRNA, we discuss recognition of tetranucleotide sequences by KH domains.
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Affiliation(s)
- Paul H Backe
- Grenoble Outstation, European Molecular Biology Laboratory, 6 rue Jules Horowitz, BP 181, F-38042 Grenoble Cedex 9, France
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18
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Abstract
RNA is an ancient and highly versatile molecule that plays fundamental roles in all living organisms. Its molecular functions range from being a mediator of genetic information to the regulation of essential cellular processes. These functions are often accomplished in close association with RNA binding proteins. Over the past few years, a considerable number of high-resolution three-dimensional structures of important protein-RNA complexes have been determined. Here, we wish to discuss recent examples and highlight principles and distinct features of single-stranded RNA recognition by conserved RNA binding domains.
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Affiliation(s)
- Ana C Messias
- Structural and Computational Biology, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany
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19
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Liu Z, Luyten I, Bottomley MJ, Messias AC, Houngninou-Molango S, Sprangers R, Zanier K, Krämer A, Sattler M. Structural basis for recognition of the intron branch site RNA by splicing factor 1. Science 2001; 294:1098-102. [PMID: 11691992 DOI: 10.1126/science.1064719] [Citation(s) in RCA: 179] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
During spliceosome assembly, splicing factor 1 (SF1) specifically recognizes the intron branch point sequence (BPS) UACUAAC in the pre-mRNA transcripts. We show that the KH-QUA2 region of SF1 defines an enlarged KH (hn RNP K) fold which is necessary and sufficient for BPS binding. The 3' part of the BPS (UAAC), including the conserved branch point adenosine (underlined), is specifically recognized in a hydrophobic cleft formed by the Gly-Pro-Arg-Gly motif and the variable loop of the KH domain. The QUA2 region recognizes the 5' nucleotides of the BPS (ACU). The branch point adenosine acting as the nucleophile in the first biochemical step of splicing is deeply buried. BPS RNA recognition suggests how SF1 may facilitate subsequent formation of the prespliceosomal complex A.
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Affiliation(s)
- Z Liu
- European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, D-69117 Heidelberg, Germany
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20
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Salgueiro CA, da Costa PN, Turner DL, Messias AC, van Dongen WM, Saraiva LM, Xavier AV. Effect of hydrogen-bond networks in controlling reduction potentials in Desulfovibrio vulgaris (Hildenborough) cytochrome C3 probed by site-specific mutagenesis. Biochemistry 2001; 40:9709-16. [PMID: 11583171 DOI: 10.1021/bi010330b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cytochromes C3 isolated from Desulfovibrio spp. are periplasmic proteins that play a central role in energy transduction by coupling the transfer of electrons and protons from hydrogenase. Comparison between the oxidized and reduced structures of cytochrome C3 isolated from Desulfovibrio vulgaris (Hildenborough) show that the residue threonine 24, located in the vicinity of heme III, reorients between these two states [Messias, A. C., Kastrau, D. H. W., Costa, H. S., LeGall, J., Turner, D. L., Santos, H., and Xavier, A. V. (1998) J. Mol. Biol. 281, 719-739]. Threonine 24 was replaced with valine by site-directed mutagenesis to elucidate its effect on the redox properties of the protein. The NMR spectra of the mutated protein are very similar to those of the wild type, showing that the general folding and heme core architecture are not affected by the mutation. However, thermodynamic analysis of the mutated cytochrome reveals a large alteration in the microscopic reduction potential of heme III (75 and 106 mV for the protonated forms of the fully reduced and oxidized states, respectively). The redox interactions involving this heme are also modified, while the remaining heme-heme interactions and the redox-Bohr interactions are less strongly affected. Hence, the order of oxidation of the hemes in the mutated cytochrome is different from that in the wild type, and it has a higher overall affinity for electrons. This is consistent with the replacement of threonine 24 by valine preventing the formation of a network of hydrogen bonds, which stabilizes the oxidized state. The mutated protein is unable to perform a concerted two-electron step between the intermediate oxidation stages, 1 and 3, which can occur in the wild-type protein. Thus, replacing a single residue unbalances the global network of cooperativities tuned to control thermodynamically the directionality of the stepwise electron transfer and may affect the functionality of the protein.
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Affiliation(s)
- C A Salgueiro
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal
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21
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Turner DL, Brennan L, Messias AC, Teodoro ML, Xavier AV. Correlation of empirical magnetic susceptibility tensors and structure in low-spin haem proteins. Eur Biophys J 2000; 29:104-12. [PMID: 10877019 DOI: 10.1007/s002490050255] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Experimental magnetic susceptibility tensors are reported for eight haems c with bis-His coordination. These data, obtained by fitting the dipolar shifts of backbone protons in the tetrahaem cytochromes c(3) from Desulfovibrio vulgaris and D. gigas, are analysed together with published values for other haem proteins. The x and y axes are found to rotate in the opposite sense to the axial ligands and are also counter-rotated with respect to the frontier molecular orbitals of the haem. The magnetic z-axis is close to the normal to the haem plane in each case. The magnitudes of the magnetic anisotropies are used to derive crystal field parameters and the rhombic splitting, V, is correlated with the dihedral angle between the axial ligands. Hence, it is apparent that the axial ligands are the dominant factor in determining the variation in magnetic properties between haems, and it is confirmed that "high g(max)" EPR signals are a reliable indicator of near-perpendicular ligands. These results are in full agreement with the analysis of non-Curie effects and electronic structure in the His-Met coordinated cytochromes c and C(551). Collectively, they show that the orientations of axial ligands to the haem may be estimated from single-crystal EPR data, from (13)C NMR shifts of the haem substituents, or from NMR dipolar shifts of the polypeptide.
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Affiliation(s)
- D L Turner
- Department of Chemistry, University of Southampton, UK.
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22
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Brennan L, Turner DL, Messias AC, Teodoro ML, LeGall J, Santos H, Xavier AV. Structural basis for the network of functional cooperativities in cytochrome c(3) from Desulfovibrio gigas: solution structures of the oxidised and reduced states. J Mol Biol 2000; 298:61-82. [PMID: 10756105 DOI: 10.1006/jmbi.2000.3652] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cytochrome c(3) is a 14 kDa tetrahaem protein that plays a central role in the bioenergetic metabolism of Desulfovibrio spp. This involves an energy transduction mechanism made possible by a complex network of functional cooperativities between redox and redox/protolytic centres (the redox-Bohr effect), which enables cytochrome c(3) to work as a proton activator. The three-dimensional structures of the oxidised and reduced Desulfovibrio gigas cytochrome c(3) in solution were solved using 2D (1)H-NMR data. The reduced protein structures were calculated using INDYANA, an extended version of DYANA that allows automatic calibration of NOE data. The oxidised protein structure, which includes four paramagnetic centres, was solved using the program PARADYANA, which also includes the structural paramagnetic parameters. In this case, initial structures were used to correct the upper and lower volume restraints for paramagnetic leakage, and angle restraints derived from (13)C Fermi contact shifts of haem moiety substituents were used for the axial histidine ligands. Despite the reduction of the NOE intensities by paramagnetic relaxation, the final family of structures is of similar precision and accuracy to that obtained for the reduced form. Comparison of the two structures shows that, although the global folds of the two families of structures are similar, significant localised differences occur upon change of redox state, some of which could not be detected by comparison with the X-ray structure of the oxidised state: (1) there is a redox-linked concerted rearrangement of Lys80 and Lys90 that results in the stabilisation of haem moieties II and III when both molecules are oxidised or both are reduced, in agreement with the previously measured positive redox cooperativity between these two haem moieties. This cooperativity regulates electron transfer, enabling a two-electron step adapted to the function of cytochromes c(3) as the coupling partner of hydrogenase; and (2) the movement of haem I propionate 13 towards the interior of the protein upon reduction explains the positive redox-Bohr effect, establishing the structural basis for the redox-linked proton activation mechanism necessary for energy conservation, driving ATP synthesis.
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Affiliation(s)
- L Brennan
- Department of Chemistry, University of Southampton, Southampton, SO17 1BJ, UK
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23
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Saraiva LM, Salgueiro CA, da Costa PN, Messias AC, LeGall J, van Dongen WM, Xavier AV. Replacement of lysine 45 by uncharged residues modulates the redox-Bohr effect in tetraheme cytochrome c3 of Desulfovibrio vulgaris (Hildenborough). Biochemistry 1998; 37:12160-5. [PMID: 9724528 DOI: 10.1021/bi981001v] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The structural basis for the pH dependence of the redox potential in the tetrahemic Desulfovibrio vulgaris (Hildenborough) cytochrome c3 was investigated by site-directed mutagenesis of charged residues in the vicinity of heme I. Mutation of lysine 45, located in the neighborhood of the propionates of heme I, by uncharged residues, namely threonine, glutamine and leucine, was performed. The replacement of a conserved charged residue, aspartate 7, present in the N-terminal region and near heme I was also attempted. The analysis of the redox interactions as well as the redox-Bohr behavior of the mutated cytochromes c3 allowed the conclusion that residue 45 has a functional role in the control of the pKa of the propionate groups of heme I and confirms the involvement of this residue in the redox-Bohr effect.
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Affiliation(s)
- L M Saraiva
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Portugal
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24
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Messias AC, Kastrau DH, Costa HS, LeGall J, Turner DL, Santos H, Xavier AV. Solution structure of Desulfovibrio vulgaris (Hildenborough) ferrocytochrome c3: structural basis for functional cooperativity. J Mol Biol 1998; 281:719-39. [PMID: 9710542 DOI: 10.1006/jmbi.1998.1974] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Desulfovibrio vulgaris cytochrome c3 is a 14 kDa tetrahaem cytochrome that plays a central role in energy transduction. The three-dimensional structure of the ferrocytochrome at pH 8.5 was solved through two-dimensional 1H-NMR. The structures were calculated using a large amount of experimental information, which includes upper and lower distance limits as well as dihedral angle restraints. The analysis allows for fast-flipping aromatic residues and flexibility in the haem plane. The structure was determined using 2289 upper and 2390 lower distance limits, 63 restricted ranges for the phi torsion angle, 88 stereospecific assignments out of the 118 stereopairs with non-degenerate chemical shifts (74.6%), and 115 out of the 184 nuclear Overhauser effects to fast-flipping aromatic residues (62.5%), which were pseudo-stereospecifically assigned to one or the other side of the ring. The calculated NMR structures are very well defined, with an average root-mean-square deviation value relative to the mean coordinates of 0.35 A for the backbone atoms and 0.70 A for all heavy-atoms. Comparison of the NMR structures of the ferrocytochrome at pH 8.5 with the available X-ray structure of the ferricytochrome at pH 5.5 reveals that the general fold of the molecule is very similar, but that there are some distinct differences. Calculation of ring current shifts for the residues with significantly different conformations confirms that the NMR structures represent better its solution structure in the reduced form. Some of the localised differences, such as a reorientation of Thr24, are thought to be state-dependent changes that involve alterations in hydrogen bond networks. An important rearrangement in the vicinity of the propionate groups of haem I and involving the covalent linkage of haem II suggests that this is the critical region for the functional cooperativities of this protein.
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Affiliation(s)
- A C Messias
- Universidade Nova de Lisboa, Rua da Quinta Grande, 6 Apartado 127, Oeiras, 2780, Portugal
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