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Worthmann A, Ridder J, Piel SYL, Evangelakos I, Musfeldt M, Voß H, O'Farrell M, Fischer AW, Adak S, Sundd M, Siffeti H, Haumann F, Kloth K, Bierhals T, Heine M, Pertzborn P, Pauly M, Scholz JJ, Kundu S, Fuh MM, Neu A, Tödter K, Hempel M, Knippschild U, Semenkovich CF, Schlüter H, Heeren J, Scheja L, Kubisch C, Schlein C. Fatty acid synthesis suppresses dietary polyunsaturated fatty acid use. Nat Commun 2024; 15:45. [PMID: 38167725 PMCID: PMC10762034 DOI: 10.1038/s41467-023-44364-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024] Open
Abstract
Dietary polyunsaturated fatty acids (PUFA) are increasingly recognized for their health benefits, whereas a high production of endogenous fatty acids - a process called de novo lipogenesis (DNL) - is closely linked to metabolic diseases. Determinants of PUFA incorporation into complex lipids are insufficiently understood and may influence the onset and progression of metabolic diseases. Here we show that fatty acid synthase (FASN), the key enzyme of DNL, critically determines the use of dietary PUFA in mice and humans. Moreover, the combination of FASN inhibition and PUFA-supplementation decreases liver triacylglycerols (TAG) in mice fed with high-fat diet. Mechanistically, FASN inhibition causes higher PUFA uptake via the lysophosphatidylcholine transporter MFSD2A, and a diacylglycerol O-acyltransferase 2 (DGAT2)-dependent incorporation of PUFA into TAG. Overall, the outcome of PUFA supplementation may depend on the degree of endogenous DNL and combining PUFA supplementation and FASN inhibition might be a promising approach to target metabolic disease.
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Affiliation(s)
- Anna Worthmann
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Julius Ridder
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sharlaine Y L Piel
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ioannis Evangelakos
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Melina Musfeldt
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hannah Voß
- Section / Core Facility Mass Spectrometry and Proteomics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marie O'Farrell
- Sagimet Biosciences Inc., 155 Bovet Rd., San Mateo, CA, 94402, USA
| | - Alexander W Fischer
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Sangeeta Adak
- Division of Endocrinology, Metabolism & Lipid Research, Department of Medicine, Washington University, St. Louis, MO, USA
| | - Monica Sundd
- National Institute of Immunology, New Delhi, India
| | - Hasibullah Siffeti
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Friederike Haumann
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Katja Kloth
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tatjana Bierhals
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Heine
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Paul Pertzborn
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mira Pauly
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Julia-Josefine Scholz
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Suman Kundu
- Department of Biochemistry, University of Delhi South Campus, New Delhi 110021 and Department of Biological Sciences, Birla Institute of Technology and Science Pilani, K K Birla Goa Campus, Goa, 403726, India
| | - Marceline M Fuh
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Axel Neu
- Department of Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Klaus Tödter
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maja Hempel
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Human Genetics, University Hospital Heidelberg, Im Neuenheimer Feld 440, 69120, Heidelberg, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University Hospital Ulm, Ulm, Germany
| | - Clay F Semenkovich
- Division of Endocrinology, Metabolism & Lipid Research, Department of Medicine, Washington University, St. Louis, MO, USA
| | - Hartmut Schlüter
- Section / Core Facility Mass Spectrometry and Proteomics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joerg Heeren
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ludger Scheja
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Kubisch
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Schlein
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Meier L, Gahr BM, Roth A, Gihring A, Kirschner S, Woitaske-Proske C, Baier J, Peifer C, Just S, Knippschild U. Zebrafish as model system for the biological characterization of CK1 inhibitors. Front Pharmacol 2023; 14:1245246. [PMID: 37753113 PMCID: PMC10518421 DOI: 10.3389/fphar.2023.1245246] [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: 06/23/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023] Open
Abstract
Introduction: The CK1 family is involved in a variety of physiological processes by regulating different signaling pathways, including the Wnt/β-catenin, the Hedgehog and the p53 signaling pathways. Mutations or dysregulation of kinases in general and of CK1 in particular are known to promote the development of cancer, neurodegenerative diseases and inflammation. There is increasing evidence that CK1 isoform specific small molecule inhibitors, including CK1δ- and CK1ε-specific inhibitors of Wnt production (IWP)-based small molecules with structural similarity to benzimidazole compounds, have promising therapeutic potential. Methods: In this study, we investigated the suitability of the zebrafish model system for the evaluation of such CK1 inhibitors. To this end, the kinetic parameters of human CK1 isoforms were compared with those of zebrafish orthologues. Furthermore, the effects of selective CK1δ inhibition during zebrafish embryonic development were analyzed in vivo. Results: The results revealed that zebrafish CK1δA and CK1δB were inhibited as effectively as human CK1δ by compounds G2-2 with IC50 values of 345 and 270 nM for CK1δA and CK1δB versus 503 nM for human CK1δ and G2-3 exhibiting IC50 values of 514 and 561 nM for zebrafish CK1δA and B, and 562 nM for human CK1δ. Furthermore, the effects of selective CK1δ inhibition on zebrafish embryonic development in vivo revealed phenotypic abnormalities indicative of downregulation of CK1δ. Treatment of zebrafish embryos with selected inhibitors resulted in marked phenotypic changes including blood stasis, heart failure, and tail malformations. Conclusion: The results suggest that the zebrafish is a suitable in vivo assay model system for initial studies of the biological relevance of CK1δ inhibition.
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Affiliation(s)
- Laura Meier
- Surgery Center, Department of General- and Visceral Surgery, University Hospital Ulm, Ulm, Germany
| | - Bernd Martin Gahr
- Molecular Cardiology, Department of Internal Medicine II, University Hospital Ulm, Ulm, Germany
| | - Aileen Roth
- Surgery Center, Department of General- and Visceral Surgery, University Hospital Ulm, Ulm, Germany
| | - Adrian Gihring
- Surgery Center, Department of General- and Visceral Surgery, University Hospital Ulm, Ulm, Germany
| | - Stefan Kirschner
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Kiel, Germany
| | | | - Joana Baier
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Christian Peifer
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Steffen Just
- Molecular Cardiology, Department of Internal Medicine II, University Hospital Ulm, Ulm, Germany
| | - Uwe Knippschild
- Surgery Center, Department of General- and Visceral Surgery, University Hospital Ulm, Ulm, Germany
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Zhang Y, Xing H, Bolotnikov G, Krämer M, Gotzmann N, Knippschild U, Kissmann AK, Rosenau F. Enriched Aptamer Libraries in Fluorescence-Based Assays for Rikenella microfusus-Specific Gut Microbiome Analyses. Microorganisms 2023; 11:2266. [PMID: 37764110 PMCID: PMC10535755 DOI: 10.3390/microorganisms11092266] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/29/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Rikenella microfusus is an essential intestinal probiotic with great potential. The latest research shows that imbalance in the intestinal flora are related to the occurrence of various diseases, such as intestinal diseases, immune diseases, and metabolic diseases. Rikenella may be a target or biomarker for some diseases, providing a new possibility for preventing and treating these diseases by monitoring and optimizing the abundance of Rikenella in the intestine. However, the current monitoring methods have disadvantages, such as long detection times, complicated operations, and high costs, which seriously limit the possibility of clinical application of microbiome-based treatment options. Therefore, the intention of this study was to evolve an enriched aptamer library to be used for specific labeling of R. microfusus, allowing rapid and low-cost detection methods and, ultimately the construction of aptamer-based biosensors. In this study, we used Rikenella as the target bacterium for an in vitro whole Cell-SELEX (Systematic Evolution of Ligands by EXponential Enrichment) to evolve and enrich specific DNA oligonucleotide aptamers. Five other prominent anaerobic gut bacteria were included in this process for counterselection and served as control cells. The aptamer library R.m-R13 was evolved with high specificity and strong affinity (Kd = 9.597 nM after 13 rounds of selection). With this enriched aptamer library, R. microfusus could efficiently be discriminated from the control bacteria in complex mixtures using different analysis techniques, including fluorescence microscopy or fluorometric suspension assays, and even in human stool samples. These preliminary results open new avenues toward the development of aptamer-based microbiome bio-sensing applications for fast and reliable monitoring of R. microfusus.
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Affiliation(s)
- Yiting Zhang
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
| | - Hu Xing
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
| | - Grigory Bolotnikov
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
| | - Markus Krämer
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
| | - Nina Gotzmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany;
| | - Ann-Kathrin Kissmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (Y.Z.); (H.X.); (G.B.); (M.K.); (N.G.); (A.-K.K.)
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Gihring A, Gärtner F, Mayer L, Roth A, Abdelrasoul H, Kornmann M, Elad L, Knippschild U. Influence of bariatric surgery on the peripheral blood immune system of female patients with morbid obesity revealed by high-dimensional mass cytometry. Front Immunol 2023; 14:1131893. [PMID: 37266430 PMCID: PMC10230950 DOI: 10.3389/fimmu.2023.1131893] [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: 12/26/2022] [Accepted: 04/25/2023] [Indexed: 06/03/2023] Open
Abstract
Introduction Obesity is associated with low-grade chronic inflammation, altered levels of adipocytokines, and impaired regulation of gastrointestinal hormones. Secreted, these factors exert immunostimulatory functions directly influencing peripheral immune cells. Methods In the realm of this study, we aimed to investigate the composition and activation status of peripheral blood immune cells in female patients with morbid obesity compared to lean controls using high-dimensional mass cytometry. Besides, we also assessed the influence of bariatric surgery with respect to its ability to reverse obesity-associated alterations within the first-year post-surgery. Results Patients with morbid obesity showed typical signs of chronic inflammation characterized by increased levels of CRP and fibrinogen. Apart from that, metabolic alterations were characterized by increased levels of leptin and resistin as well as decreased levels of adiponectin and ghrelin compared to the healthy control population. All these however, except for ghrelin levels, rapidly normalized after surgery with regard to control levels. Furthermore, we found an increased population of monocytic CD14+, HLA-DR-, CD11b+, CXCR3+ cells in patients with morbid obesity and an overall reduction of the HLA-DR monocytic expression compared to the control population. Although CD14+, HLA-DR-, CD11b+, CXCR3+ decreased after surgery, HLA-DR expression did not recover within 9 - 11 months post-surgery. Moreover, compared to the control population, patients with morbid obesity showed a perturbed CD4+ T cell compartment, characterized by a strongly elevated CD127+ memory T cell subset and decreased naïve T cells, which was not recovered within 9 - 11 months post-surgery. Although NK cells showed an activated phenotype, they were numerically lower in patients with morbid obesity when compared to healthy controls. The NK cell population further decreased after surgery and did not recover quantitatively within the study period. Conclusions Our results clearly demonstrate that the rapid adaptions in inflammatory parameters and adipocytokine levels that occur within the first year post-surgery do not translate to the peripheral immune cells. Apart from that, we described highly affected, distinct immune cell subsets, defined as CD127+ memory T cells and monocytic CD14+, HLA-DR, CD11b+, CXCR3+ cells, that might play a significant role in understanding and further decoding the etiopathogenesis of morbid obesity.
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Liebold I, Meyer S, Heine M, Kuhl A, Witt J, Eissing L, Fischer AW, Koop AC, Kluwe J, zur Wiesch JS, Wehmeyer M, Knippschild U, Scheja L, Heeren J, Bosurgi L, Worthmann A. TREM2 Regulates the Removal of Apoptotic Cells and Inflammatory Processes during the Progression of NAFLD. Cells 2023; 12:cells12030341. [PMID: 36766683 PMCID: PMC9913311 DOI: 10.3390/cells12030341] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common liver pathology worldwide. In mice and humans, NAFLD progression is characterized by the appearance of TREM2-expressing macrophages in the liver. However, their mechanistic contributions to disease progression have not been completely elucidated. Here, we show that TREM2+ macrophages prevent the generation of a pro-inflammatory response elicited by LPS-laden lipoproteins in vitro. Further, Trem2 expression regulates bone-marrow-derived macrophages (BMDMs) and Kupffer cell capacity to phagocyte apoptotic cells in vitro, which is dependent on CD14 activation. In line with this, loss of Trem2 resulted in an increased pro-inflammatory response, which ultimately aggravated liver fibrosis in murine models of NAFLD. Similarly, in a human NAFLD cohort, plasma levels of TREM2 were increased and hepatic TREM2 expression was correlated with higher levels of liver triglycerides and the acquisition of a fibrotic gene signature. Altogether, our results suggest that TREM2+ macrophages have a protective function during the progression of NAFLD, as they are involved in the processing of pro-inflammatory lipoproteins and phagocytosis of apoptotic cells and, thereby, are critical contributors for the re-establishment of liver homeostasis.
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Affiliation(s)
- Imke Liebold
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Protozoa Immunology, Bernhard Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
| | - Simon Meyer
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Markus Heine
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Anastasia Kuhl
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Jennifer Witt
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Leah Eissing
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Alexander W. Fischer
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Anja Christina Koop
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Johannes Kluwe
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Department of Internal Medicine and Gastroenterology, Amalie Sieveking Hospital, 22359 Hamburg, Germany
| | | | - Malte Wehmeyer
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University Hospital Ulm, 89081 Ulm, Germany
| | - Ludger Scheja
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Joerg Heeren
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Lidia Bosurgi
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Protozoa Immunology, Bernhard Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
- Correspondence: (L.B.); (A.W.)
| | - Anna Worthmann
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Correspondence: (L.B.); (A.W.)
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Wesseler F, Lohmann S, Riege D, Halver J, Roth A, Pichlo C, Weber S, Takamiya M, Müller E, Ketzel J, Flegel J, Gihring A, Rastegar S, Bertrand J, Baumann U, Knippschild U, Peifer C, Sievers S, Waldmann H, Schade D. Phenotypic Discovery of Triazolo[1,5- c]quinazolines as a First-In-Class Bone Morphogenetic Protein Amplifier Chemotype. J Med Chem 2022; 65:15263-15281. [DOI: 10.1021/acs.jmedchem.2c01199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fabian Wesseler
- Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
- Compound Management and Screening Center COMAS, Max Planck Institute of Molecular Physiology (MPI), 44227 Dortmund, Germany
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Christian-Albrechts University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Stefan Lohmann
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Christian-Albrechts University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Daniel Riege
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Christian-Albrechts University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Jonas Halver
- Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Aileen Roth
- Department of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Christian Pichlo
- Department of Chemistry, University of Cologne, Greinstraße 6, 50939 Cologne, Germany
| | - Sabrina Weber
- Institute of Biological and Chemical Systems - Biological Information Processing at Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Masanari Takamiya
- Institute of Biological and Chemical Systems - Biological Information Processing at Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Eva Müller
- Department of Orthopedic Surgery, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Jana Ketzel
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Christian-Albrechts University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Jana Flegel
- Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Adrian Gihring
- Department of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Sepand Rastegar
- Institute of Biological and Chemical Systems - Biological Information Processing at Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Jessica Bertrand
- Department of Orthopedic Surgery, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Ulrich Baumann
- Department of Chemistry, University of Cologne, Greinstraße 6, 50939 Cologne, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Christian Peifer
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Christian-Albrechts University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
| | - Sonja Sievers
- Compound Management and Screening Center COMAS, Max Planck Institute of Molecular Physiology (MPI), 44227 Dortmund, Germany
- Max-Planck-Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227Dortmund, Germany
| | - Herbert Waldmann
- Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
- Max-Planck-Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227Dortmund, Germany
| | - Dennis Schade
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Christian-Albrechts University of Kiel, Gutenbergstrasse 76, 24118 Kiel, Germany
- Partner Site Kiel, DZHK, German Center for Cardiovascular Research, 24105 Kiel, Germany
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Xing H, Zhang Y, Krämer M, Kissmann AK, Henkel M, Weil T, Knippschild U, Rosenau F. A Polyclonal Selex Aptamer Library Directly Allows Specific Labelling of the Human Gut Bacterium Blautia producta without Isolating Individual Aptamers. Molecules 2022; 27:molecules27175693. [PMID: 36080459 PMCID: PMC9458011 DOI: 10.3390/molecules27175693] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/24/2022] Open
Abstract
Recent studies have demonstrated that changes in the abundance of the intestinal bacterium Blautia producta, a potential probiotic, are closely associated with the development of various diseases such as obesity, diabetes, some neurodegenerative diseases, and certain cancers. However, there is still a lack of an effective method to detect the abundance of B. producta in the gut rapidly. Especially, DNA aptamers are now widely used as biometric components for medical testing due to their unique characteristics, including high chemical stability, low production cost, ease of chemical modification, low immunogenicity, and fast reproducibility. We successfully obtained a high-affinity nucleic acid aptamer library (B.p-R14) after 14 SELEX rounds, which efficiently discriminates B. producta in different analysis techniques including fluorometric suspension assays or fluorescence microscopy from other major gut bacteria in complex mixtures and even in human stool samples. These preliminary findings will be the basis towards aptamer-based biosensing applications for the fast and reliable monitoring of B. producta in the human gut microbiome.
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Affiliation(s)
- Hu Xing
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Yiting Zhang
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Markus Krämer
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Ann-Kathrin Kissmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
- Correspondence: (A.-K.K.); (F.R.)
| | - Marius Henkel
- Cellular Agriculture, TUM School of Life Sciences, Technical University of Munich, Gregor-Mendel-Straße 4, 85354 Freising, Germany
| | - Tanja Weil
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Max-Planck-Institute for Polymer Research Mainz, Ackermannweg 10, 55128 Mainz, Germany
- Correspondence: (A.-K.K.); (F.R.)
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Bagci-Onder T, Kutuk O, Chonghaile TN, Knippschild U. Editorial: Cell Death and Targeted Cancer Therapies. Front Cell Dev Biol 2022; 10:967720. [PMID: 35874828 PMCID: PMC9296767 DOI: 10.3389/fcell.2022.967720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tugba Bagci-Onder
- Koç University School of Medicine, Istanbul, Turkey
- *Correspondence: Tugba Bagci-Onder,
| | - Ozgur Kutuk
- Department of Immunology, School of Medicine, Başkent University, Ankara, Turkey
| | - Triona Ni Chonghaile
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
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9
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Roth A, Sander A, Oswald MS, Gärtner F, Knippschild U, Bischof J. Comprehensive Characterization of CK1δ-Mediated Tau Phosphorylation in Alzheimer’s Disease. Front Mol Biosci 2022; 9:872171. [PMID: 36203870 PMCID: PMC9531328 DOI: 10.3389/fmolb.2022.872171] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
A main pathological event in Alzheimer’s disease is the generation of neurofibrillary tangles originating from hyperphosphorylated and subsequently aggregated tau proteins. Previous reports demonstrated the critical involvement of members of the protein kinase family CK1 in the pathogenesis of Alzheimer’s disease by hyperphosphorylation of tau. However, precise mechanisms and effects of CK1-mediated tau phosphorylation are still not fully understood. In this study, we analyzed recombinant tau441 phosphorylated by CK1δ in vitro via mass spectrometry and identified ten potential phosphorylation sites, five of them are associated to Alzheimer’s disease. To confirm these results, in vitro kinase assays and two-dimensional phosphopeptide analyses were performed with tau441 phosphomutants confirming Alzheimer’s disease-associated residues Ser68/Thr71 and Ser289 as CK1δ-specific phosphorylation sites. Treatment of differentiated human neural progenitor cells with PF-670462 and Western blot analysis identified Ser214 as CK1δ-targeted phosphorylation site. The use of an in vitro tau aggregation assay demonstrated a possible role of CK1δ in tau aggregation. Results obtained in this study highlight the potential of CK1δ to be a promising target in the treatment of Alzheimer’s disease.
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10
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El Hage R, Knippschild U, Arnold T, Hinterseher I. Stem Cell-Based Therapy: A Promising Treatment for Diabetic Foot Ulcer. Biomedicines 2022; 10:biomedicines10071507. [PMID: 35884812 PMCID: PMC9312797 DOI: 10.3390/biomedicines10071507] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Diabetic foot ulcer (DFU) is a severe complication of diabetes and a challenging medical condition. Conventional treatments for DFU have not been effective enough to reduce the amputation rates, which urges the need for additional treatment. Stem cell-based therapy for DFU has been investigated over the past years. Its therapeutic effect is through promoting angiogenesis, secreting paracrine factors, stimulating vascular differentiation, suppressing inflammation, improving collagen deposition, and immunomodulation. It is controversial which type and origin of stem cells, and which administration route would be the most optimal for therapy. We reviewed the different types and origins of stem cells and routes of administration used for the treatment of DFU in clinical and preclinical studies. Diabetes leads to the impairment of the stem cells in the diseased patients, which makes it less ideal to use autologous stem cells, and requires looking for a matching donor. Moreover, angioplasty could be complementary to stem cell therapy, and scaffolds have a positive impact on the healing process of DFU by stem cell-based therapy. In short, stem cell-based therapy is promising in the field of regenerative medicine, but more studies are still needed to determine the ideal type of stem cells required in therapy, their safety, proper dosing, and optimal administration route.
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Affiliation(s)
- Racha El Hage
- Department of Vascular Surgery, Universitätsklinikum Ruppin-Brandenburg, Medizinische Hochschule Branderburg Theodor Fontane, Fehrbelliner Str. 38, 16816 Neuruppin, Germany;
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (U.K.); (T.A.)
| | - Tobias Arnold
- Department of General and Visceral Surgery, Surgery Center, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (U.K.); (T.A.)
| | - Irene Hinterseher
- Department of Vascular Surgery, Universitätsklinikum Ruppin-Brandenburg, Medizinische Hochschule Branderburg Theodor Fontane, Fehrbelliner Str. 38, 16816 Neuruppin, Germany;
- Berlin Institute of Health, Vascular Surgery Clinic, Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Fakultät für Gesundheitswissenschaften Brandenburg, Gemeinsame Fakultät der Universität Potsdam, der Medizinischen Hochschule Brandenburg Theodor Fontane und der Brandenburgischen Technischen Universität Cottbus—Senftenberg, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
- Correspondence: ; Tel.: +49-3391-39-47110
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11
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Gihring A, Gärtner F, Schirmer M, Wabitsch M, Knippschild U. Recent Developments in Mouse Trauma Research Models: A Mini-Review. Front Physiol 2022; 13:866617. [PMID: 35574493 PMCID: PMC9101050 DOI: 10.3389/fphys.2022.866617] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/04/2022] [Indexed: 12/02/2022] Open
Abstract
The urgency to investigate trauma in a controlled and reproducible environment rises since multiple trauma still account for the most deaths for people under the age of 45. The most common multiple trauma include head as well as blunt thorax trauma along with fractures. However, these trauma remain difficult to treat, partially because the molecular mechanisms that trigger the immediate immune response are not fully elucidated. To illuminate these mechanisms, investigators have used animal models, primarily mice as research subjects. This mini review aims to 1) emphasize the importance of the development of clinically relevant murine trauma research, 2) highlight and discuss the existing conflict between simulating clinically relevant situations and elucidating molecular mechanisms, 3) describe the advantages and disadvantages of established mouse trauma models developed to simulate clinically relevant situations, 4) summarize and list established mouse models in the field of trauma research developed to simulate clinically relevant situations.
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Affiliation(s)
- Adrian Gihring
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Melanie Schirmer
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
- *Correspondence: Uwe Knippschild,
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12
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Xu P, Westhoff MA, Hadzalic A, Debatin KM, Winiarski L, Oleksyszyn J, Wirtz CR, Knippschild U, Burster T. Diisothiocyanate-Derived Mercapturic Acids Are a Promising Partner for Combination Therapies in Glioblastoma. ACS Omega 2022; 7:5929-5936. [PMID: 35224353 PMCID: PMC8867792 DOI: 10.1021/acsomega.1c06169] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Glioblastoma represents the most aggressive tumor of the central nervous system. Due to invasion of glioblastoma stem cells into the healthy tissue, chemoresistance, and recurrence of the tumor, it is difficult to successfully treat glioblastoma patients, which is demonstrated by the low life expectancy of patients after standard therapy treatment. Recently, we found that diisothiocyanate-derived mercapturic acids, which are isothiocyanate derivatives from plants of the Cruciferae family, provoked a decrease in glioblastoma cell viability. These findings were extended by combining diisothiocyanate-derived mercapturic acids with dinaciclib (a small-molecule inhibitor of cyclin-dependent kinases with anti-proliferative capacity) or temozolomide (TMZ, standard chemotherapeutic agent) to test whether the components have a cytotoxic effect on glioblastoma cells when the dosage is low. Here, we demonstrate that the combination of diisothiocyanate-derived mercapturic acids with dinaciclib or TMZ had an additive or even synergistic effect in the restriction of cell growth dependent on the combination of the components and the glioblastoma cell source. This strategy could be applied to inhibit glioblastoma cell growth as a therapeutic interference of glioblastoma.
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Affiliation(s)
- Pengfei Xu
- Department
of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, 89081 Ulm, Germany
| | - Mike-Andrew Westhoff
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, 89081 Ulm, Germany
| | - Amina Hadzalic
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, 89081 Ulm, Germany
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, 89081 Ulm, Germany
| | - Lukasz Winiarski
- Faculty
of Chemistry, Division of Medicinal Chemistry and Microbiology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego
27, 50-370 Wrocław, Poland
| | - Jozef Oleksyszyn
- Faculty
of Chemistry, Division of Medicinal Chemistry and Microbiology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego
27, 50-370 Wrocław, Poland
| | - Christian Rainer Wirtz
- Department
of Neurosurgery, Ulm University Medical
Center, Albert-Einstein-Allee
7, 89081 Ulm, Germany
| | - Uwe Knippschild
- Department
of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, 89081 Ulm, Germany
| | - Timo Burster
- Department
of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave. 53, 010000 Nur-Sultan, Kazakhstan Republic
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13
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von Drathen T, Ure EM, Kirschner S, Roth A, Meier L, Woolhouse AD, Cameron SA, Knippschild U, Peifer C, Luxenburger A. C5-Iminosugar modification of casein kinase 1δ lead 3-(4-fluorophenyl)-5-isopropyl-4-(pyridin-4-yl)isoxazole promotes enhanced inhibitor affinity and selectivity. Arch Pharm (Weinheim) 2022; 355:e2100497. [PMID: 35174898 DOI: 10.1002/ardp.202100497] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/11/2022]
Abstract
The quest for isoform-selective and specific ATP-competitive protein kinase inhibitors is of great interest, as inhibitors with these qualities will come with reduced toxicity and improved efficacy. However, creating such inhibitors is very challenging due to the high molecular similarity of kinases ATP active sites. To achieve selectivity for our casein kinase (CK) 1 inhibitor series, we elected to endow our previous CK1δ-hit, 3-(4-fluorophenyl)-5-isopropyl-4-(pyridin-4-yl)isoxazole (1), with chiral iminosugar scaffolds. These scaffolds were attached to C5 of the isoxazole ring, a position deemed favorable to facilitate binding interactions with the ribose pocket/solvent-open area of the ATP binding pocket of CK1δ. Here, we describe the synthesis of analogs of 1 ((-)-/(+)-34, (-)-/(+)-48), which were prepared in 13 steps from enantiomerically pure ethyl (3R,4S)- and ethyl (3S,4R)-1-benzyl-4-[(tert-butyldimethylsilyl)oxy]-5-oxopyrrolidine-3-carboxylate ((-)-11 and (+)-11), respectively. The synthesis involved the coupling of Weinreb amide-activated chiral pyrrolidine scaffolds with 4- and 2-fluoro-4-picoline and reaction of the resulting 4-picolyl ketone intermediates ((-)-/(+)-40 and (-)-/(+)-44) with 4-fluoro-N-hydroxybenzenecarboximidoyl chloride to form the desired isoxazole ring. The activity of the compounds against human CK1δ, -ε, and -α was assessed in recently optimized in vitro assays. Compound (-)-34 was the most active compound with IC50 values (CK1δ/ε) of 1/8 µM and displayed enhanced selectivity toward CK1δ.
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Affiliation(s)
- Thorsten von Drathen
- Ferrier Research Institute, Victoria University of Wellington, Lower Hutt, New Zealand.,Institute of Pharmacy, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Elizabeth M Ure
- Ferrier Research Institute, Victoria University of Wellington, Lower Hutt, New Zealand
| | - Stefan Kirschner
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Aileen Roth
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Laura Meier
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Anthony D Woolhouse
- Ferrier Research Institute, Victoria University of Wellington, Lower Hutt, New Zealand
| | - Scott A Cameron
- Ferrier Research Institute, Victoria University of Wellington, Lower Hutt, New Zealand
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Christian Peifer
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Andreas Luxenburger
- Ferrier Research Institute, Victoria University of Wellington, Lower Hutt, New Zealand
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14
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Smirlis D, Dingli F, Sabatet V, Roth A, Knippschild U, Loew D, Späth GF, Rachidi N. Identification of the Host Substratome of Leishmania-Secreted Casein Kinase 1 Using a SILAC-Based Quantitative Mass Spectrometry Assay. Front Cell Dev Biol 2022; 9:800098. [PMID: 35047509 PMCID: PMC8762337 DOI: 10.3389/fcell.2021.800098] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/13/2021] [Indexed: 12/27/2022] Open
Abstract
Leishmaniasis is a severe public health problem, caused by the protozoan Leishmania. This parasite has two developmental forms, extracellular promastigote in the insect vector and intracellular amastigote in the mammalian host where it resides inside the phagolysosome of macrophages. Little is known about the virulence factors that regulate host-pathogen interactions and particularly host signalling subversion. All the proteomes of Leishmania extracellular vesicles identified the presence of Leishmania casein kinase 1 (L-CK1.2), a signalling kinase. L-CK1.2 is essential for parasite survival and thus might be essential for host subversion. To get insights into the functions of L-CK1.2 in the macrophage, the systematic identification of its host substrates is crucial, we thus developed an easy method to identify substrates, combining phosphatase treatment, in vitro kinase assay and Stable Isotope Labelling with Amino acids in Cell (SILAC) culture-based mass spectrometry. Implementing this approach, we identified 225 host substrates as well as a potential novel phosphorylation motif for CK1. We confirmed experimentally the enrichment of our substratome in bona fide L-CK1.2 substrates and showed they were also phosphorylated by human CK1δ. L-CK1.2 substratome is enriched in biological processes such as "viral and symbiotic interaction," "actin cytoskeleton organisation" and "apoptosis," which are consistent with the host pathways modified by Leishmania upon infection, suggesting that L-CK1.2 might be the missing link. Overall, our results generate important mechanistic insights into the signalling of host subversion by these parasites and other microbial pathogens adapted for intracellular survival.
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Affiliation(s)
- Despina Smirlis
- Institut Pasteur, Université de Paris, Institut National de Santé et Recherche Médicale INSERM U1201, Unité de parasitologie Moléculaire et Signalisation, Paris, France.,Hellenic Pasteur Institute, Athens, Greece
| | - Florent Dingli
- Laboratoire de Spectrométrie de Masse Protéomique (LSMP), Centre de Recherche, Institut Curie, PSL Research University, Paris, France
| | - Valentin Sabatet
- Laboratoire de Spectrométrie de Masse Protéomique (LSMP), Centre de Recherche, Institut Curie, PSL Research University, Paris, France
| | - Aileen Roth
- Department of General and Visceral Surgery, Centre of Surgery, University Hospital Ulm, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Centre of Surgery, University Hospital Ulm, Ulm, Germany
| | - Damarys Loew
- Laboratoire de Spectrométrie de Masse Protéomique (LSMP), Centre de Recherche, Institut Curie, PSL Research University, Paris, France
| | - Gerald F Späth
- Institut Pasteur, Université de Paris, Institut National de Santé et Recherche Médicale INSERM U1201, Unité de parasitologie Moléculaire et Signalisation, Paris, France
| | - Najma Rachidi
- Institut Pasteur, Université de Paris, Institut National de Santé et Recherche Médicale INSERM U1201, Unité de parasitologie Moléculaire et Signalisation, Paris, France
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15
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Gärtner F, Gihring A, Roth A, Bischof J, Xu P, Elad L, Wabitsch M, Burster T, Knippschild U. Obesity Prolongs the Inflammatory Response in Mice After Severe Trauma and Attenuates the Splenic Response to the Inflammatory Reflex. Front Immunol 2021; 12:745132. [PMID: 34867969 PMCID: PMC8634681 DOI: 10.3389/fimmu.2021.745132] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
Thoracic traumas with extra-thoracic injuries result in an immediate, complex host response. The immune response requires tight regulation and can be influenced by additional risk factors such as obesity, which is considered a state of chronic inflammation. Utilizing high-dimensional mass and regular flow cytometry, we define key signatures of obesity-related alterations of the immune system during the response to the trauma. In this context, we report a modification in important components of the splenic response to the inflammatory reflex in obese mice. Furthermore, during the response to trauma, obese mice exhibit a prolonged increase of neutrophils and an early accumulation of inflammation associated CCR2+CD62L+Ly6Chi monocytes in the blood, contributing to a persistent inflammatory phase. Moreover, these mice exhibit differences in migration patterns of monocytes to the traumatized lung, resulting in decreased numbers of regenerative macrophages and an impaired M1/M2 switch in traumatized lungs. The findings presented in this study reveal an attenuation of the inflammatory reflex in obese mice, as well as a disturbance of the monocytic compartment contributing to a prolonged inflammation phase resulting in fewer phenotypically regenerative macrophages in the lung of obese mice.
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Affiliation(s)
- Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Adrian Gihring
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Aileen Roth
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Joachim Bischof
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Pengfei Xu
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Leonard Elad
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
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16
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Pan L, Hoffmeister P, Turkiewicz A, Huynh NND, Große-Berkenbusch A, Knippschild U, Gebhardt JCM, Baumann B, Borggrefe T, Oswald F. Transcription Factor RBPJL Is Able to Repress Notch Target Gene Expression but Is Non-Responsive to Notch Activation. Cancers (Basel) 2021; 13:cancers13195027. [PMID: 34638511 PMCID: PMC8508133 DOI: 10.3390/cancers13195027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 12/01/2022] Open
Abstract
Simple Summary The transcription factor RBPJ is an integral part of the Notch signaling cascade. RBPJ can function as a coactivator when Notch signaling is activated but acts as a repressor in the absence of a Notch stimulus. Here, we characterized the function of RBPJL, a pancreas-specific paralog of RBPJ. Upon depletion of RBPJ using CRISPR/Cas9, we observed specific upregulation of Notch target gene expression. Reconstitution with RBPJL can compensate for the lack of RBPJ function in the repression of Notch target genes but is not able to mediate the Notch-dependent activation of gene expression. On the molecular level, we identified a limited capacity of RBPJL to interact with activated Notch1–4. Abstract The Notch signaling pathway is an evolutionary conserved signal transduction cascade present in almost all tissues and is required for embryonic and postnatal development, as well as for stem cell maintenance, but it is also implicated in tumorigenesis including pancreatic cancer and leukemia. The transcription factor RBPJ forms a coactivator complex in the presence of a Notch signal, whereas it represses Notch target genes in the absence of a Notch stimulus. In the pancreas, a specific paralog of RBPJ, called RBPJL, is expressed and found as part of the heterotrimeric PTF1-complex. However, the function of RBPJL in Notch signaling remains elusive. Using molecular modeling, biochemical and functional assays, as well as single-molecule time-lapse imaging, we show that RBPJL and RBPJ, despite limited sequence homology, possess a high degree of structural similarity. RBPJL is specifically expressed in the exocrine pancreas, whereas it is mostly undetectable in pancreatic tumour cell lines. Importantly, RBPJL is not able to interact with Notch−1 to −4 and it does not support Notch-mediated transactivation. However, RBPJL can bind to canonical RBPJ DNA elements and shows migration dynamics comparable to that of RBPJ in the nuclei of living cells. Importantly, RBPJL is able to interact with SHARP/SPEN, the central corepressor of the Notch pathway. In line with this, RBPJL is able to fully reconstitute transcriptional repression at Notch target genes in cells lacking RBPJ. Together, RBPJL can act as an antagonist of RBPJ, which renders cells unresponsive to the activation of Notch.
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Affiliation(s)
- Leiling Pan
- Center for Internal Medicine, Department of Internal Medicine I, University Medical Center Ulm, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (L.P.); (P.H.)
| | - Philipp Hoffmeister
- Center for Internal Medicine, Department of Internal Medicine I, University Medical Center Ulm, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (L.P.); (P.H.)
| | - Aleksandra Turkiewicz
- Institute of Biochemistry, University of Giessen, Friedrichstrasse 24, 35392 Giessen, Germany;
| | - N. N. Duyen Huynh
- Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (N.N.D.H.); (A.G.-B.); (J.C.M.G.)
| | - Andreas Große-Berkenbusch
- Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (N.N.D.H.); (A.G.-B.); (J.C.M.G.)
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany;
| | - J. Christof M. Gebhardt
- Institute of Biophysics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (N.N.D.H.); (A.G.-B.); (J.C.M.G.)
| | - Bernd Baumann
- Institute of Physiological Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany;
| | - Tilman Borggrefe
- Institute of Biochemistry, University of Giessen, Friedrichstrasse 24, 35392 Giessen, Germany;
- Correspondence: (T.B.); (F.O.); Tel.: +49-731-500-44544 (F.O.)
| | - Franz Oswald
- Center for Internal Medicine, Department of Internal Medicine I, University Medical Center Ulm, Ulm University, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (L.P.); (P.H.)
- Correspondence: (T.B.); (F.O.); Tel.: +49-731-500-44544 (F.O.)
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17
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Burster T, Traut R, Yermekkyzy Z, Mayer K, Westhoff MA, Bischof J, Knippschild U. Critical View of Novel Treatment Strategies for Glioblastoma: Failure and Success of Resistance Mechanisms by Glioblastoma Cells. Front Cell Dev Biol 2021; 9:695325. [PMID: 34485282 PMCID: PMC8415230 DOI: 10.3389/fcell.2021.695325] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/29/2021] [Indexed: 12/28/2022] Open
Abstract
According to the invasive nature of glioblastoma, which is the most common form of malignant brain tumor, the standard care by surgery, chemo- and radiotherapy is particularly challenging. The presence of glioblastoma stem cells (GSCs) and the surrounding tumor microenvironment protects glioblastoma from recognition by the immune system. Conventional therapy concepts have failed to completely remove glioblastoma cells, which is one major drawback in clinical management of the disease. The use of small molecule inhibitors, immunomodulators, immunotherapy, including peptide and mRNA vaccines, and virotherapy came into focus for the treatment of glioblastoma. Although novel strategies underline the benefit for anti-tumor effectiveness, serious challenges need to be overcome to successfully manage tumorigenesis, indicating the significance of developing new strategies. Therefore, we provide insights into the application of different medications in combination to boost the host immune system to interfere with immune evasion of glioblastoma cells which are promising prerequisites for therapeutic approaches to treat glioblastoma patients.
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Affiliation(s)
- Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Rebecca Traut
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Ulm, Germany
| | - Zhanerke Yermekkyzy
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Katja Mayer
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Ulm, Germany
| | - Mike-Andrew Westhoff
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Joachim Bischof
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Ulm, Germany
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18
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Traub B, Roth A, Kornmann M, Knippschild U, Bischof J. Stress-activated kinases as therapeutic targets in pancreatic cancer. World J Gastroenterol 2021; 27:4963-4984. [PMID: 34497429 PMCID: PMC8384741 DOI: 10.3748/wjg.v27.i30.4963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/17/2021] [Accepted: 07/20/2021] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is a dismal disease with high incidence and poor survival rates. With the aim to improve overall survival of pancreatic cancer patients, new therapeutic approaches are urgently needed. Protein kinases are key regulatory players in basically all stages of development, maintaining physiologic functions but also being involved in pathogenic processes. c-Jun N-terminal kinases (JNK) and p38 kinases, representatives of the mitogen-activated protein kinases, as well as the casein kinase 1 (CK1) family of protein kinases are important mediators of adequate response to cellular stress following inflammatory and metabolic stressors, DNA damage, and others. In their physiologic roles, they are responsible for the regulation of cell cycle progression, cell proliferation and differentiation, and apoptosis. Dysregulation of the underlying pathways consequently has been identified in various cancer types, including pancreatic cancer. Pharmacological targeting of those pathways has been the field of interest for several years. While success in earlier studies was limited due to lacking specificity and off-target effects, more recent improvements in small molecule inhibitor design against stress-activated protein kinases and their use in combination therapies have shown promising in vitro results. Consequently, targeting of JNK, p38, and CK1 protein kinase family members may actually be of particular interest in the field of precision medicine in patients with highly deregulated kinase pathways related to these kinases. However, further studies are warranted, especially involving in vivo investigation and clinical trials, in order to advance inhibition of stress-activated kinases to the field of translational medicine.
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Affiliation(s)
- Benno Traub
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm 89081, Germany
| | - Aileen Roth
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm 89081, Germany
| | - Marko Kornmann
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm 89081, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm 89081, Germany
| | - Joachim Bischof
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm 89081, Germany
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19
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Roth A, Gihring A, Göser F, Peifer C, Knippschild U, Bischof J. Assessing the Inhibitory Potential of Kinase Inhibitors In Vitro: Major Pitfalls and Suggestions for Improving Comparability of Data Using CK1 Inhibitors as an Example. Molecules 2021; 26:4898. [PMID: 34443486 PMCID: PMC8401859 DOI: 10.3390/molecules26164898] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 06/25/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 11/16/2022] Open
Abstract
Phosphorylation events catalyzed by protein kinases represent one of the most prevalent as well as important regulatory posttranslational modifications, and dysregulation of protein kinases is associated with the pathogenesis of different diseases. Therefore, interest in developing potent small molecule kinase inhibitors has increased enormously within the last two decades. A critical step in the development of new inhibitors is cell-free in vitro testing with the intention to determine comparable parameters like the commonly used IC50 value. However, values described in the literature are often biased as experimental setups used for determination of kinase activity lack comparability due to different readout parameters, insufficient normalization or the sheer number of experimental approaches. Here, we would like to hold a brief for highly sensitive, radioactive-based in vitro kinase assays especially suitable for kinases exhibiting autophosphorylation activity. Therefore, we demonstrate a systematic workflow for complementing and validating results from high-throughput screening as well as increasing the comparability of enzyme-specific inhibitor parameters for radiometric as well as non-radiometric assays. Using members of the CK1 family of serine/threonine-specific protein kinases and established CK1-specific inhibitors as examples, we clearly demonstrate the power of our proposed workflow, which has the potential to support the generation of more comparable data for biological characterization of kinase inhibitors.
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Affiliation(s)
- Aileen Roth
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (A.R.); (A.G.); (F.G.); (J.B.)
| | - Adrian Gihring
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (A.R.); (A.G.); (F.G.); (J.B.)
| | - Florian Göser
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (A.R.); (A.G.); (F.G.); (J.B.)
| | - Christian Peifer
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Gutenbergstraße 76, 24118 Kiel, Germany;
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (A.R.); (A.G.); (F.G.); (J.B.)
| | - Joachim Bischof
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (A.R.); (A.G.); (F.G.); (J.B.)
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20
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Rachidi N, Knippschild U, Späth GF. Dangerous Duplicity: The Dual Functions of Casein Kinase 1 in Parasite Biology and Host Subversion. Front Cell Infect Microbiol 2021; 11:655700. [PMID: 33869086 PMCID: PMC8044801 DOI: 10.3389/fcimb.2021.655700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/05/2021] [Indexed: 02/01/2023] Open
Abstract
Casein Kinase 1 (CK1) family members are serine/threonine protein kinases that are involved in many biological processes and highly conserved in eukaryotes from protozoan to humans. Even though pathogens exploit host CK1 signaling pathways to survive, the role of CK1 in infectious diseases and host/pathogen interaction is less well characterized compared to other diseases, such as cancer or neurodegenerative diseases. Here we present the current knowledge on CK1 in protozoan parasites highlighting their essential role for parasite survival and their importance for host-pathogen interactions. We also discuss how the dual requirement of CK1 family members for parasite biological processes and host subversion could be exploited to identify novel antimicrobial interventions.
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Affiliation(s)
- Najma Rachidi
- Unité de Parasitologie moléculaire et Signalisation, Department of Parasites and Insect Vectors, Institut Pasteur and INSERM U1201, Paris, France
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital, Ulm, Germany
| | - Gerald F. Späth
- Unité de Parasitologie moléculaire et Signalisation, Department of Parasites and Insect Vectors, Institut Pasteur and INSERM U1201, Paris, France
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21
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Burster T, Gärtner F, Bulach C, Zhanapiya A, Gihring A, Knippschild U. Regulation of MHC I Molecules in Glioblastoma Cells and the Sensitizing of NK Cells. Pharmaceuticals (Basel) 2021; 14:ph14030236. [PMID: 33800301 PMCID: PMC7998501 DOI: 10.3390/ph14030236] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/22/2022] Open
Abstract
Immunotherapy has been established as an important area in the therapy of malignant diseases. Immunogenicity sufficient for immune recognition and subsequent elimination can be bypassed by tumors through altered and/or reduced expression levels of major histocompatibility complex class I (MHC I) molecules. Natural killer (NK) cells can eliminate tumor cells in a MHC I antigen presentation-independent manner by an array of activating and inhibitory receptors, which are promising candidates for immunotherapy. Here we summarize the latest findings in recognizing and regulating MHC I molecules that affect NK cell surveillance of glioblastoma cells.
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Affiliation(s)
- Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave. 53, 010000 Nur-Sultan, Kazakhstan;
- Correspondence: ; Tel.: +7-(7172)-70-66-75
| | - Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (F.G.); (C.B.); (A.G.); (U.K.)
| | - Christiane Bulach
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (F.G.); (C.B.); (A.G.); (U.K.)
| | - Anuar Zhanapiya
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave. 53, 010000 Nur-Sultan, Kazakhstan;
| | - Adrian Gihring
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (F.G.); (C.B.); (A.G.); (U.K.)
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (F.G.); (C.B.); (A.G.); (U.K.)
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22
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Burster T, Gärtner F, Knippschild U, Zhanapiya A. Activity-Based Probes to Utilize the Proteolytic Activity of Cathepsin G in Biological Samples. Front Chem 2021; 9:628295. [PMID: 33732686 PMCID: PMC7959752 DOI: 10.3389/fchem.2021.628295] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/07/2021] [Indexed: 12/30/2022] Open
Abstract
Neutrophils, migrating to the site of infection, are able to release serine proteases after being activated. These serine proteases comprise cathepsin G (CatG), neutrophil elastase protease 3 (PR3), and neutrophil serine protease 4 (NSP4). A disadvantage of the uncontrolled proteolytic activity of proteases is the outcome of various human diseases, including cardiovascular diseases, thrombosis, and autoimmune diseases. Activity-based probes (ABPs) are used to determine the proteolytic activity of proteases, containing a set of three essential elements: Warhead, recognition sequence, and the reporter tag for detection of the covalent enzyme activity–based probe complex. Here, we summarize the latest findings of ABP-mediated detection of proteases in both locations intracellularly and on the cell surface of cells, thereby focusing on CatG. Particularly, application of ABPs in regular flow cytometry, imaging flow cytometry, and mass cytometry by time-of-flight (CyTOF) approaches is advantageous when distinguishing between immune cell subsets. ABPs can be included in a vast panel of markers to detect proteolytic activity and determine whether proteases are properly regulated during medication. The use of ABPs as a detection tool opens the possibility to interfere with uncontrolled proteolytic activity of proteases by employing protease inhibitors.
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Affiliation(s)
- Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Ulm, Germany
| | - Anuar Zhanapiya
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
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23
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Gärtner F, Knippschild U, Burster T. Application of an Activity-Based Probe to Determine Proteolytic Activity of Cell Surface Cathepsin G by Mass Cytometry Data Acquisition. ACS Omega 2020; 5:28233-28238. [PMID: 33163806 PMCID: PMC7643251 DOI: 10.1021/acsomega.0c04092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/02/2020] [Indexed: 05/08/2023]
Abstract
During an immune response, cathepsin G (CatG) takes on the role of adaptive and innate immunity and the outcome depends on the localization of CatG. Soluble, cell surface-bound, or intracellular CatG is also responsible for pathophysiology conditions. We applied the activity-based probe MARS116-Bt to mass cytometry by time-of-flight to analyze CatG activity on the cell surface of immune cells. The phosphonate warhead of MARS116-Bt binds covalently to the serine amino acid residue S195 of the catalytic center and thereby CatG activity can be detected. This method contributes to observing the activation or inhibition status of cells during pathogenesis of diseases and enables accurate data acquisition from complex biological samples with a vast panel of cell subset markers in a single-cell resolution.
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Affiliation(s)
- Fabian Gärtner
- Department of General
and Visceral Surgery, Surgery Center, Ulm
University Medical Center, 89081 Ulm, Germany
| | - Uwe Knippschild
- Department of General
and Visceral Surgery, Surgery Center, Ulm
University Medical Center, 89081 Ulm, Germany
| | - Timo Burster
- Department
of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Avenue, 53, Nur-Sultan 010000, Kazakhstan Republic
- . Phone: +7 (7172)
70-66-75
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24
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Tian X, Traub B, Xie X, Zhou S, Henne-Bruns D, Knippschild U, Kornmann M. Opposing Oncogenic Functions of p38 Mitogen-activated Protein Kinase Alpha and Beta in Human Pancreatic Cancer Cells. Anticancer Res 2020; 40:5545-5556. [PMID: 32988878 DOI: 10.21873/anticanres.14567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM The p38 family of mitogen-activated protein kinases (MAPK) includes four isoforms: p38α, -β, -γ and -δ. The aim of this study was to elucidate possible functions of p38α and p38β in human pancreatic cancer. MATERIALS AND METHODS Isoform expression was determined in seven human pancreatic cancer cell lines. After shRNA based selective knockdown of p38α and p38β, in vitro growth and migration as well as in vivo tumorigenicity were assessed. RESULTS All pancreatic cancer cells expressed p38 isoforms. Knockdown of p38α and p38β inhibited in vitro growth. Migration was markedly reduced in p38α shRNA expressing clones, but not altered by p38β knockdown. While in vivo inhibition of p38β decreased tumor formation and growth, the knockdown of p38α significantly enhanced tumorigenicity. CONCLUSION p38 MAPKs may exert isoform specific functions in pancreatic cancer. Selective targeting may contribute to individualized treatment of pancreatic cancer in the future.
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Affiliation(s)
- Xiaodong Tian
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany.,Department of General Surgery, Peking University First Hospital, Beijing, P.R. China
| | - Benno Traub
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Xuehai Xie
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany.,Department of General Surgery, Peking University First Hospital, Beijing, P.R. China
| | - Shaoxia Zhou
- Clinical Chemistry, University of Ulm, Ulm, Germany
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Marko Kornmann
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
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25
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Xu P, Gärtner F, Gihring A, Liu C, Burster T, Wabitsch M, Knippschild U, Paschke S. Influence of obesity on remodeling of lung tissue and organization of extracellular matrix after blunt thorax trauma. Respir Res 2020; 21:238. [PMID: 32943048 PMCID: PMC7496205 DOI: 10.1186/s12931-020-01502-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/06/2020] [Indexed: 12/15/2022] Open
Abstract
Background Previously, it has been shown that obesity is a risk factor for recovery, regeneration, and tissue repair after blunt trauma and can affect the rate of muscle recovery and collagen deposition after trauma. To date, lung tissue regeneration and extracellular matrix regulation in obese mice after injury has not been investigated in detail yet. Methods This study uses an established blunt thorax trauma model to analyze morphological changes and alterations on gene and protein level in lean or obese (diet-induced obesity for 16 ± 1 week) male C57BL/6 J mice at various time-points after trauma induction (1 h, 6 h, 24 h, 72 h and 192 h). Results Morphological analysis after injury showed lung parenchyma damage at early time-points in both lean and obese mice. At later time-points a better regenerative capacity of lean mice was observed, since obese animals still exhibited alveoli collapse, wall thickness as well as remaining filled alveoli structures. Although lean mice showed significantly increased collagen and fibronectin gene levels, analysis of collagen deposition showed no difference based on colorimetric quantification of collagen and visual assessment of Sirius red staining. When investigating the organization of the ECM on gene level, a decreased response of obese mice after trauma regarding extracellular matrix composition and organization was detectable. Differences in the lung tissue between the diets regarding early responding MMPs (MMP8/9) and late responding MMPs (MMP2) could be observed on gene and protein level. Obese mice show differences in regulation of extracellular matrix components compared to normal weight mice, which results in a decreased total MMP activity in obese animals during the whole regeneration phase. Starting at 6 h post traumatic injury, lean mice show a 50% increase in total MMP activity compared to control animals, while MMP activity in obese mice drops to 50%. Conclusions In conclusion, abnormal regulation of the levels of extracellular matrix genes in the lung may contribute to an aberrant regeneration after trauma induction with a delay of repair and pathological changes of the lung tissue in obese mice.
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Affiliation(s)
- Pengfei Xu
- Department of General and Visceral Surgery, Surgery Center; Ulm University Medical Center, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center; Ulm University Medical Center, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Adrian Gihring
- Department of General and Visceral Surgery, Surgery Center; Ulm University Medical Center, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Congxing Liu
- Department of General and Visceral Surgery, Surgery Center; Ulm University Medical Center, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave., 53, Nur-Sultan, 010000, Republic of Kazakhstan
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Ulm University Hospital for Pediatrics and Adolescent Medicine, Eythstraße 24, 89075, Ulm, Germany.
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center; Ulm University Medical Center, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Stephan Paschke
- Department of General and Visceral Surgery, Surgery Center; Ulm University Medical Center, Albert-Einstein-Allee 23, 89081, Ulm, Germany
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26
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Gihring A, Gärtner F, Liu C, Hoenicka M, Wabitsch M, Knippschild U, Xu P. Influence of Obesity on the Organization of the Extracellular Matrix and Satellite Cell Functions After Combined Muscle and Thorax Trauma in C57BL/6J Mice. Front Physiol 2020; 11:849. [PMID: 32848828 PMCID: PMC7399228 DOI: 10.3389/fphys.2020.00849] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/24/2020] [Indexed: 12/13/2022] Open
Abstract
Obesity has been described as a major factor of health risk in modern society. Next to intricately linked comorbidities like coronary artery disease or diabetes, an influence of obesity on regeneration after muscle injury has been described previously. However, the influence of obesity on tissue regeneration in a combined trauma, merging the more systemic influence of a blunt lung trauma and the local blunt muscle trauma, has not been investigated yet. Therefore, the aim of this study was to investigate the influence of obesity on regeneration in a mouse model that combined both muscle and thorax trauma. Using gene expression analysis, a focus was put on the structure as well as the organization of the extracellular matrix and on functional satellite cell physiology. An increased amount of debris in the lung of obese mice compared to normal weight mice up to 192 h after combined trauma based on visual assessment can be reported which is accompanied by a decreased response of Mmp2 in obese mice. Additionally, a delayed and elongated response of inhibitor genes like Timp1 has been revealed in obese mice. This elongated response to the trauma in obese mice can also be seen in plasma based on increased levels of pro-inflammatory chemo- and cytokines (IL-6, MCP-1, and IL 23) 192 h post trauma. In addition to changes in the lung, morphological analysis of the injured extensor iliotibialis anticus of the left hind leg in lean and diet-induced obese mice revealed deposition of fat in the regenerating muscle in obese animals hindering the structure of a compact muscle. Additionally, decreased activation of satellite cells and changes in organization and build-up of the ECM could be detected, finally leading to a decreased stability of the regenerated muscle in obese mice. Both factors contribute to an attenuated response to the trauma by obese mice which is reflected by a statistically significant decrease in muscle force of obese mice compared to lean mice 192 h post trauma induction.
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Affiliation(s)
- Adrian Gihring
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Congxing Liu
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Markus Hoenicka
- Department of Cardio-Thoracic and Vascular Surgery, Ulm University Medical Center, Ulm, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - Pengfei Xu
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
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27
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Burster T, Knippschild U, Molnár F, Zhanapiya A. Cathepsin G and its Dichotomous Role in Modulating Levels of MHC Class I Molecules. Arch Immunol Ther Exp (Warsz) 2020; 68:25. [PMID: 32815043 DOI: 10.1007/s00005-020-00585-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 06/11/2020] [Indexed: 12/21/2022]
Abstract
Cathepsin G (CatG) is involved in controlling numerous processes of the innate and adaptive immune system. These features include the proteolytic activity of CatG and play a pivotal role in alteration of chemokines as well as cytokines, clearance of exogenous and internalized pathogens, platelet activation, apoptosis, and antigen processing. This is in contrast to the capability of CatG acting in a proteolytic-independent manner due to the net charge of arginine residues in the CatG sequence which interferes with bacteria. CatG is a double-edged sword; CatG is also responsible in pathophysiological conditions, such as autoimmunity, chronic pulmonary diseases, HIV infection, tumor progression and metastasis, photo-aged human skin, Papillon-Lefèvre syndrome, and chronic inflammatory pain. Here, we summarize the latest findings for functional responsibilities of CatG in immunity, including bivalent regulation of major histocompatibility complex class I molecules, which underscore an additional novel role of CatG within the immune system.
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Affiliation(s)
- Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave. 53, Nur-Sultan, 010000, Kazakhstan.
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, 89081, Ulm, Germany
| | - Ferdinand Molnár
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave. 53, Nur-Sultan, 010000, Kazakhstan
| | - Anuar Zhanapiya
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Kabanbay Batyr Ave. 53, Nur-Sultan, 010000, Kazakhstan
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28
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Pradas-Juni M, Hansmeier NR, Link JC, Schmidt E, Larsen BD, Klemm P, Meola N, Topel H, Loureiro R, Dhaouadi I, Kiefer CA, Schwarzer R, Khani S, Oliverio M, Awazawa M, Frommolt P, Heeren J, Scheja L, Heine M, Dieterich C, Büning H, Yang L, Cao H, Jesus DFD, Kulkarni RN, Zevnik B, Tröder SE, Knippschild U, Edwards PA, Lee RG, Yamamoto M, Ulitsky I, Fernandez-Rebollo E, Vallim TQDA, Kornfeld JW. A MAFG-lncRNA axis links systemic nutrient abundance to hepatic glucose metabolism. Nat Commun 2020; 11:644. [PMID: 32005828 PMCID: PMC6994702 DOI: 10.1038/s41467-020-14323-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 12/27/2019] [Indexed: 02/07/2023] Open
Abstract
Obesity and type 2 diabetes mellitus are global emergencies and long noncoding RNAs (lncRNAs) are regulatory transcripts with elusive functions in metabolism. Here we show that a high fraction of lncRNAs, but not protein-coding mRNAs, are repressed during diet-induced obesity (DIO) and refeeding, whilst nutrient deprivation induced lncRNAs in mouse liver. Similarly, lncRNAs are lost in diabetic humans. LncRNA promoter analyses, global cistrome and gain-of-function analyses confirm that increased MAFG signaling during DIO curbs lncRNA expression. Silencing Mafg in mouse hepatocytes and obese mice elicits a fasting-like gene expression profile, improves glucose metabolism, de-represses lncRNAs and impairs mammalian target of rapamycin (mTOR) activation. We find that obesity-repressed LincIRS2 is controlled by MAFG and observe that genetic and RNAi-mediated LincIRS2 loss causes elevated blood glucose, insulin resistance and aberrant glucose output in lean mice. Taken together, we identify a MAFG-lncRNA axis controlling hepatic glucose metabolism in health and metabolic disease. Despite widespread transcription of LncRNA in mammalian systems, their contribution to metabolic homeostasis at the cellular and tissue level remains elusive. Here Pradas-Juni et al. describe a transcription factor–LncRNA pathway that couples hepatocyte nutrient sensing to regulation of glucose metabolism in mice.
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Affiliation(s)
- Marta Pradas-Juni
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.,Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Nils R Hansmeier
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Jenny C Link
- Department of Biological Chemistry, University of California, Los Angeles (UCLA), 650 Charles E. Young Drive South, Los Angeles, CA, 90095, USA.,Department of Medicine, Division of Cardiology, UCLA, 650 Charles E. Young Drive South, Los Angeles, CA, 90095, USA
| | - Elena Schmidt
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Bjørk Ditlev Larsen
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Paul Klemm
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Nicola Meola
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Hande Topel
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.,Izmir Biomedicine and Genome Center (IBG), Mithatpasa Ave. 58/5, 35340, Izmir, Turkey.,Department of Medical Biology and Genetics, Graduate School of Health Sciences, Dokuz Eylul University, Mithatpasa Ave. 1606, 35330, Izmir, Turkey
| | - Rute Loureiro
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.,Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Ines Dhaouadi
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Christoph A Kiefer
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Robin Schwarzer
- Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Sajjad Khani
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Matteo Oliverio
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Motoharu Awazawa
- Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.,Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, Tokyo, 162-8655, Japan
| | - Peter Frommolt
- Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Joerg Heeren
- Department of Biochemistry and Molecular Cell Biology, Martinistraße 52, 20246, Hamburg, Germany
| | - Ludger Scheja
- Department of Biochemistry and Molecular Cell Biology, Martinistraße 52, 20246, Hamburg, Germany
| | - Markus Heine
- Department of Biochemistry and Molecular Cell Biology, Martinistraße 52, 20246, Hamburg, Germany
| | - Christoph Dieterich
- Section of Bioinformatics and Systems Cardiology, Klaus Tschira Institute for Integrative Computational Cardiology, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany
| | - Hildegard Büning
- Institute of Experimental Hematology, Hanover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Ling Yang
- Cardiovascular Branch, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA.,Lewis Katz School of Medicine, Temple University, Philadelphia, PA, 19140, USA
| | - Haiming Cao
- Cardiovascular Branch, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA
| | - Dario F De Jesus
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Brigham and Women's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, 02215, MA, USA
| | - Rohit N Kulkarni
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Brigham and Women's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, 02215, MA, USA
| | - Branko Zevnik
- CECAD in vivo Research Facility, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Simon E Tröder
- CECAD in vivo Research Facility, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University Hospital Ulm, Albert-Einstein Allee 93, 89081, Ulm, Germany
| | - Peter A Edwards
- Department of Biological Chemistry, University of California, Los Angeles (UCLA), 650 Charles E. Young Drive South, Los Angeles, CA, 90095, USA.,Department of Medicine, Division of Cardiology, UCLA, 650 Charles E. Young Drive South, Los Angeles, CA, 90095, USA
| | | | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku Medical Megabank Organization, Sendai, 980-8573, Japan
| | - Igor Ulitsky
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Eduardo Fernandez-Rebollo
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Thomas Q de Aguiar Vallim
- Department of Biological Chemistry, University of California, Los Angeles (UCLA), 650 Charles E. Young Drive South, Los Angeles, CA, 90095, USA. .,Department of Medicine, Division of Cardiology, UCLA, 650 Charles E. Young Drive South, Los Angeles, CA, 90095, USA.
| | - Jan-Wilhelm Kornfeld
- Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark. .,Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany. .,Cologne Cluster of Excellence-Cellular Stress Responses in Ageing-associated Diseases (CECAD), Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 26, 50931, Cologne, Germany.
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29
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Njeru SN, Kraus J, Meena JK, Lechel A, Katz SF, Kumar M, Knippschild U, Azoitei A, Wezel F, Bolenz C, Leithäuser F, Gollowitzer A, Omrani O, Hoischen C, Koeberle A, Kestler HA, Günes C, Rudolph KL. Aneuploidy-inducing gene knockdowns overlap with cancer mutations and identify Orp3 as a B-cell lymphoma suppressor. Oncogene 2019; 39:1445-1465. [PMID: 31659255 DOI: 10.1038/s41388-019-1073-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 09/25/2019] [Accepted: 10/14/2019] [Indexed: 12/11/2022]
Abstract
Aneuploidy can instigate tumorigenesis. However, mutations in genes that control chromosome segregation are rare in human tumors as these mutations reduce cell fitness. Screening experiments indicate that the knockdown of multiple classes of genes that are not directly involved in chromosome segregation can lead to aneuploidy induction. The possible contribution of these genes to cancer formation remains yet to be defined. Here we identified gene knockdowns that lead to an increase in aneuploidy in checkpoint-deficient human cancer cells. Computational analysis revealed that the identified genes overlap with recurrent mutations in human cancers. The knockdown of the three strongest selected candidate genes (ORP3, GJB3, and RXFP1) enhances the malignant transformation of human fibroblasts in culture. Furthermore, the knockout of Orp3 results in an aberrant expansion of lymphoid progenitor cells and a high penetrance formation of chromosomal instable, pauci-clonal B-cell lymphoma in aging mice. At pre-tumorous stages, lymphoid cells from the animals exhibit deregulated phospholipid metabolism and an aberrant induction of proliferation regulating pathways associating with increased aneuploidy in hematopoietic progenitor cells. Together, these results support the concept that aneuploidy-inducing gene deficiencies contribute to cellular transformation and carcinogenesis involving the deregulation of various molecular processes such as lipid metabolism, proliferation, and cell survival.
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Affiliation(s)
- Sospeter N Njeru
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., 07745, Jena, Germany.,Paul-Ehrlich-Institute, Division Immunology, 63225, Langen, Germany
| | - Johann Kraus
- Institute of Medical Systems Biology, Ulm University, 89081, Ulm, Germany
| | - Jitendra K Meena
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., 07745, Jena, Germany.,Baylor College of Medicine, Houston, TX, USA
| | - André Lechel
- Department of Internal Medicine I, Ulm University Hospital, 89081, Ulm, Germany
| | - Sarah-Fee Katz
- Department of Internal Medicine I, Ulm University Hospital, 89081, Ulm, Germany
| | - Mukesh Kumar
- Department of Urology, Ulm University Hospital, 89081, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, 89081, Ulm, Germany
| | - Anca Azoitei
- Department of Urology, Ulm University Hospital, 89081, Ulm, Germany
| | - Felix Wezel
- Department of Urology, Ulm University Hospital, 89081, Ulm, Germany
| | - Christian Bolenz
- Department of Urology, Ulm University Hospital, 89081, Ulm, Germany
| | | | - André Gollowitzer
- Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743, Jena, Germany
| | - Omid Omrani
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., 07745, Jena, Germany
| | - Christian Hoischen
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., 07745, Jena, Germany
| | - Andreas Koeberle
- Institute of Pharmacy, Friedrich-Schiller-University Jena, 07743, Jena, Germany.,Michael Popp Research Institute, University of Innsbruck, Innsbruck, Austria
| | - Hans A Kestler
- Institute of Medical Systems Biology, Ulm University, 89081, Ulm, Germany.
| | - Cagatay Günes
- Department of Urology, Ulm University Hospital, 89081, Ulm, Germany.
| | - K Lenhard Rudolph
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., 07745, Jena, Germany.
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30
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Liu Y, Zhang L, Li W, Li Y, Liu J, Zhang S, Pin G, Song S, Ray PF, Arnoult C, Cho C, Garcia-Reyes B, Knippschild U, Strauss JF, Zhang Z. The sperm-associated antigen 6 interactome and its role in spermatogenesis. Reproduction 2019; 158:181-197. [PMID: 31146259 PMCID: PMC7368494 DOI: 10.1530/rep-18-0522] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 05/30/2019] [Indexed: 12/18/2022]
Abstract
Mammalian SPAG6, the orthologue of Chlamydomonas reinhardtii PF16, is a component of the central apparatus of the '9 + 2' axoneme that controls ciliary/flagellar motility, including sperm motility. Recent studies revealed that SPAG6 has functions beyond its role in the central apparatus. Hence, we reexamined the role of SPAG6 in male fertility. In wild-type mice, SPAG6 was present in cytoplasmic vesicles in spermatocytes, the acrosome of round and elongating spermatids and the manchette of elongating spermatids. Spag6-deficient testes showed abnormal spermatogenesis, with abnormalities in male germ cell morphology consistent with the multi-compartment pattern of SPAG6 localization. The armadillo repeat domain of mouse SPAG6 was used as a bait in a yeast two-hybrid screen, and several proteins with diverse functions appeared multiple times, including Snapin, SPINK2 and COPS5. Snapin has a similar localization to SPAG6 in male germ cells, and SPINK2, a key protein in acrosome biogenesis, was dramatically reduced in Spag6-deficient mice which have defective acrosomes. SPAG16L, another SPAG6-binding partner, lost its localization to the manchette in Spag6-deficient mice. Our findings demonstrate that SPAG6 is a multi-functional protein that not only regulates sperm motility, but also plays roles in spermatogenesis in multiple cellular compartments involving multiple protein partners.
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Affiliation(s)
- Yunhao Liu
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Ling Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Wei Li
- Department of Physiology, Wayne State University, Detroit, MI, 48201
| | - Yuhong Li
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Junpin Liu
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Shiyang Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Guanglun Pin
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Shizhen Song
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, 430065
| | - Pierre F Ray
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Christophe Arnoult
- Genetic Epigenetic and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Chunghee Cho
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea
| | - Balbina Garcia-Reyes
- Department of General and Visceral Surgery, Ulm University, Albert-Einstein-Allee 23, D-89081, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University, Albert-Einstein-Allee 23, D-89081, Ulm, Germany
| | - Jerome F. Strauss
- Department of Obstetrics/Gynecology, Virginia Commonwealth University, Richmond, VA, 23298
| | - Zhibing Zhang
- Department of Physiology, Wayne State University, Detroit, MI, 48201
- Department of Obstetrics/Gynecology, Wayne State University, Detroit, MI, 48201
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31
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Xu P, Ianes C, Gärtner F, Liu C, Burster T, Bakulev V, Rachidi N, Knippschild U, Bischof J. Structure, regulation, and (patho-)physiological functions of the stress-induced protein kinase CK1 delta (CSNK1D). Gene 2019; 715:144005. [PMID: 31376410 DOI: 10.1016/j.gene.2019.144005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/19/2019] [Accepted: 07/23/2019] [Indexed: 12/11/2022]
Abstract
Members of the highly conserved pleiotropic CK1 family of serine/threonine-specific kinases are tightly regulated in the cell and play crucial regulatory roles in multiple cellular processes from protozoa to human. Since their dysregulation as well as mutations within their coding regions contribute to the development of various different pathologies, including cancer and neurodegenerative diseases, they have become interesting new drug targets within the last decade. However, to develop optimized CK1 isoform-specific therapeutics in personalized therapy concepts, a detailed knowledge of the regulation and functions of the different CK1 isoforms, their various splice variants and orthologs is mandatory. In this review we will focus on the stress-induced CK1 isoform delta (CK1δ), thereby addressing its regulation, physiological functions, the consequences of its deregulation for the development and progression of diseases, and its potential as therapeutic drug target.
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Affiliation(s)
- Pengfei Xu
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Chiara Ianes
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Fabian Gärtner
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Congxing Liu
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Timo Burster
- Department of Biology, School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 020000, Kazakhstan.
| | - Vasiliy Bakulev
- Ural Federal University named after the first President of Russia B. N. Eltsin, Technology for Organic Synthesis Laboratory, 19 Mirastr., 620002 Ekaterinburg, Russia.
| | - Najma Rachidi
- Unité de Parasitologie Moléculaire et Signalisation, Department of Parasites and Insect Vectors, Institut Pasteur and INSERM U1201, 25-28 Rue du Dr Roux, 75015 Paris, France.
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Joachim Bischof
- Department of General and Visceral Surgery, Surgery Center, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
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32
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Schehr M, Ianes C, Weisner J, Heintze L, Müller MP, Pichlo C, Charl J, Brunstein E, Ewert J, Lehr M, Baumann U, Rauh D, Knippschild U, Peifer C, Herges R. 2-Azo-, 2-diazocine-thiazols and 2-azo-imidazoles as photoswitchable kinase inhibitors: limitations and pitfalls of the photoswitchable inhibitor approach. Photochem Photobiol Sci 2019; 18:1398-1407. [PMID: 30924488 DOI: 10.1039/c9pp00010k] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In photopharmacology, photoswitchable compounds including azobenzene or other diarylazo moieties exhibit bioactivity against a target protein typically in the slender E-configuration, whereas the rather bulky Z-configuration usually is pharmacologically less potent. Herein we report the design, synthesis and photochemical/inhibitory characterization of new photoswitchable kinase inhibitors targeting p38α MAPK and CK1δ. A well characterized inhibitor scaffold was used to attach arylazo- and diazocine moieties. When the isolated isomers, or the photostationary state (PSS) of isomers, were tested in commonly used in vitro kinase assays, however, only small differences in activity were observed. X-ray analyses of ligand-bound p38α MAPK and CK1δ complexes revealed dynamic conformational adaptations of the protein with respect to both isomers. More importantly, irreversible reduction of the azo group to the corresponding hydrazine was observed. Independent experiments revealed that reducing agents such as DTT (dithiothreitol) and GSH (glutathione) that are typically used for protein stabilization in biological assays were responsible. Two further sources of error are the concentration dependence of the E-Z-switching efficiency and artefacts due to incomplete exclusion of light during testing. Our findings may also apply to a number of previously investigated azobenzene-based photoswitchable inhibitors.
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Affiliation(s)
- Miriam Schehr
- Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany.
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33
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Dimitrakopoulos C, Vrugt B, Flury R, Schraml P, Knippschild U, Wild P, Hoerstrup S, Henne-Bruns D, Wuerl P, Graf R, Breitenstein S, Bond G, Beerenwinkel N, Grochola LF. Identification and Validation of a Biomarker Signature in Patients With Resectable Pancreatic Cancer via Genome-Wide Screening for Functional Genetic Variants. JAMA Surg 2019; 154:e190484. [PMID: 30942874 DOI: 10.1001/jamasurg.2019.0484] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Importance Surgery currently offers the only chance for a cure in pancreatic ductal adenocarcinoma (PDAC), but it carries a significant morbidity and mortality risk and results in varying oncologic outcomes. At present, to our knowledge, there are no tests available before surgical resection to identify tumors with an aggressive biological phenotype that could guide personalized treatment strategies. Objective Identification of noninvasive genetic biomarkers that could direct therapy in patients whose cases are amenable to pancreatic cancer resection. Design, Setting, and Participants This multicenter study combined a prospective European cohort of patients with PDAC who underwent pancreatic resection (from University Hospital of Zurich, Zurich, Switzerland; Cantonal Hospital of Winterthur, Winterthur, Switzerland; and University Clinic of Ulm, Ulm, Germany) with data from the Cancer Genome Atlas database in the United States, which includes prospectively registered patients with PDAC. A genome-wide screening for functional single-nucleotide polymorphisms (SNPs) that affect PDAC survival was conducted using the European cohort for identification and the Cancer Genome Atlas cohort for validation. We used Cox proportional hazards models to screen for high-frequency polymorphic variants that are associated with allelic differences in tumor-associated survival and either result in an altered protein structure and function or reside in known regulatory noncoding genomic regions. The false-discovery rate method was applied for multiple hypothesis-testing corrections. Data analysis occurred from November 2017 to May 2018. Exposures Pancreatic resection. Main Outcomes and Measures Tumor-associated survival. Results A total of 195 patients in the European cohort were included, as well as 136 patients in the Cancer Genome Atlas cohort (overall median [range] age, 66 [19-87] years; 156 [47.1%] were women, and 175 [52.9%] were men). Two SNPs in noncoding, functional regions of genes that regulate cancer progression, invasion, and metastasis were identified (CHI3L2 SNP rs684559 and CD44 SNP rs353630). These were associated with survival after PDAC resection; patients who carry the risk alleles at 1 of both SNP loci had a 2.63-fold increased risk for tumor-associated death compared with those with protective genotypes (hazard ratio for survival, 0.38 [95% CI, 0.27-0.53]; P = 1.0 × 10-8). Conclusions and Relevance The identified polymorphisms may serve as a noninvasive biomarker signature of prospective survival after pancreatic resection that is readily available at the time of PDAC diagnosis. This signature can be used to identify a subset of high-risk patients with PDAC with very low survival probability who might be eligible for inclusion in clinical trials of new therapeutic strategies, including neoadjuvant chemotherapy protocols. In addition, the biological knowledge about these SNPs could help guide the development of individualized genomic strategies for PDAC therapies.
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Affiliation(s)
- Christos Dimitrakopoulos
- Computational Biology Group, Department of Biosystems Science and Engineering, ETH Zurich, Zurich, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Bart Vrugt
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Renata Flury
- Institute for Pathology, Cantonal Hospital of Winterthur, Winterthur, Switzerland
| | - Peter Schraml
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Peter Wild
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland.,Senckenberg Institute for Pathology, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | - Simon Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Peter Wuerl
- Department of General, Visceral and Thoracic Surgery, Klinikum Dessau, Dessau, Germany
| | - Rolf Graf
- Department of Visceral and Transplantation Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Stefan Breitenstein
- Department of Visceral and Thoracic Surgery, Cantonal Hospital of Winterthur, Winterthur, Switzerland
| | - Gareth Bond
- Ludwig Institute for Cancer Research, University of Oxford, Oxford, United Kingdom
| | - Niko Beerenwinkel
- Computational Biology Group, Department of Biosystems Science and Engineering, ETH Zurich, Zurich, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Lukasz Filip Grochola
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland.,Department of Visceral and Thoracic Surgery, Cantonal Hospital of Winterthur, Winterthur, Switzerland
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34
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Böhm T, Meng Z, Haas P, Henne-Bruns D, Rachidi N, Knippschild U, Bischof J. The kinase domain of CK1δ can be phosphorylated by Chk1. Biosci Biotechnol Biochem 2019; 83:1663-1675. [PMID: 31094292 DOI: 10.1080/09168451.2019.1617105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Members of the casein kinase 1 (CK1) family are key regulators in numerous cellular signal transduction pathways and in order to prevent the development of certain diseases, CK1 kinase activity needs to be tightly regulated. Modulation of kinase activity by site-specific phosphorylation within the C-terminal regulatory domain of CK1δ has already been shown for several cellular kinases. By using biochemical methods, we now identified residues T161, T174, T176, and S181 within the kinase domain of CK1δ as target sites for checkpoint kinase 1 (Chk1). At least residues T176 and S181 show full conservation among CK1δ orthologues from different eukaryotic species. Enzyme kinetic analysis furthermore led to the hypothesis that site-specific phosphorylation within the kinase domain finally contributes to fine-tuning of CK1δ kinase activity. These data provide a basis for the extension of our knowledge about the role of site-specific phosphorylation for regulation of CK1δ and associated signal transduction pathways.
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Affiliation(s)
- Thomas Böhm
- a Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital , Ulm , Germany
| | - Zhigang Meng
- a Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital , Ulm , Germany
| | - Philipp Haas
- a Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital , Ulm , Germany
| | - Doris Henne-Bruns
- a Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital , Ulm , Germany
| | - Najma Rachidi
- b Unité de Parasitologie moléculaire et Signalisation, Department of Parasites and Insect Vectors, Institut Pasteur and INSERM U1201 , Paris , France
| | - Uwe Knippschild
- a Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital , Ulm , Germany
| | - Joachim Bischof
- a Department of General and Visceral Surgery, Surgery Centre, Ulm University Hospital , Ulm , Germany
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35
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Kretz AL, Trauzold A, Hillenbrand A, Knippschild U, Henne-Bruns D, von Karstedt S, Lemke J. TRAILblazing Strategies for Cancer Treatment. Cancers (Basel) 2019; 11:cancers11040456. [PMID: 30935038 PMCID: PMC6521007 DOI: 10.3390/cancers11040456] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 01/07/2023] Open
Abstract
In the late 1990s, tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL), a member of the TNF-family, started receiving much attention for its potential in cancer therapy, due to its capacity to induce apoptosis selectively in tumour cells in vivo. TRAIL binds to its membrane-bound death receptors TRAIL-R1 (DR4) and TRAIL-R2 (DR5) inducing the formation of a death-inducing signalling complex (DISC) thereby activating the apoptotic cascade. The ability of TRAIL to also induce apoptosis independently of p53 makes TRAIL a promising anticancer agent, especially in p53-mutated tumour entities. Thus, several so-called TRAIL receptor agonists (TRAs) were developed. Unfortunately, clinical testing of these TRAs did not reveal any significant anticancer activity, presumably due to inherent or acquired TRAIL resistance of most primary tumour cells. Since the potential power of TRAIL-based therapies still lies in TRAIL's explicit cancer cell-selectivity, a desirable approach going forward for TRAIL-based cancer therapy is the identification of substances that sensitise tumour cells for TRAIL-induced apoptosis while sparing normal cells. Numerous of such TRAIL-sensitising strategies have been identified within the last decades. However, many of these approaches have not been verified in animal models, and therefore potential toxicity of these approaches has not been taken into consideration. Here, we critically summarise and discuss the status quo of TRAIL signalling in cancer cells and strategies to force tumour cells into undergoing apoptosis triggered by TRAIL as a cancer therapeutic approach. Moreover, we provide an overview and outlook on innovative and promising future TRAIL-based therapeutic strategies.
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Affiliation(s)
- Anna-Laura Kretz
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Anna Trauzold
- Institute for Experimental Cancer Research, University of Kiel, 24105 Kiel, Germany.
- Clinic for General Surgery, Visceral, Thoracic, Transplantation and Pediatric Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany.
| | - Andreas Hillenbrand
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Silvia von Karstedt
- Department of Translational Genomics, University Hospital Cologne, Weyertal 115b, 50931 Cologne, Germany.
- Cologne Excellence Cluster on Cellular Stress Response in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann Straße 26, 50931 Cologne, Germany.
| | - Johannes Lemke
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
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36
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Bischof J, Gärtner F, Zeiser K, Kunz R, Schreiner C, Hoffer E, Burster T, Knippschild U, Zimecki M. Immune Cells and Immunosenescence. Folia Biol (Praha) 2019; 65:53-63. [PMID: 31464181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aging is associated with progressive loss of physiological integrity, leading to impaired physical and mental functions as well as increased morbidity and mortality. With advancing age, the immune system is no longer able to adequately control autoimmunity, infections, or cancer. The abilities of the elderly to slow down undesirable effects of aging may depend on the genetic background, lifestyle, geographic region, and other presently unknown factors. Although most aspects of the immunity are constantly declining in relation to age, some features are retained, while e.g. the ability to produce high levels of cytokines, response to pathogens by increased inflammation, and imbalanced proteolytic activity are found in the elderly, and might eventually cause harm. In this context, it is important to differentiate between the effect of immunosenescence that is contributing to this decline and adaptations of the immune system that can be quickly reversed if necessary.
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Affiliation(s)
- J Bischof
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - F Gärtner
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - K Zeiser
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - R Kunz
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - C Schreiner
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - E Hoffer
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - T Burster
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, Kazakhstan Republic
| | - U Knippschild
- Department of General Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm, Germany
| | - M Zimecki
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
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García-Reyes B, Kretz AL, Ruff JP, von Karstedt S, Hillenbrand A, Knippschild U, Henne-Bruns D, Lemke J. The Emerging Role of Cyclin-Dependent Kinases (CDKs) in Pancreatic Ductal Adenocarcinoma. Int J Mol Sci 2018; 19:E3219. [PMID: 30340359 PMCID: PMC6214075 DOI: 10.3390/ijms19103219] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/27/2018] [Accepted: 10/11/2018] [Indexed: 02/07/2023] Open
Abstract
The family of cyclin-dependent kinases (CDKs) has critical functions in cell cycle regulation and controlling of transcriptional elongation. Moreover, dysregulated CDKs have been linked to cancer initiation and progression. Pharmacological CDK inhibition has recently emerged as a novel and promising approach in cancer therapy. This idea is of particular interest to combat pancreatic ductal adenocarcinoma (PDAC), a cancer entity with a dismal prognosis which is owed mainly to PDAC's resistance to conventional therapies. Here, we review the current knowledge of CDK biology, its role in cancer and the therapeutic potential to target CDKs as a novel treatment strategy for PDAC.
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Affiliation(s)
- Balbina García-Reyes
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Anna-Laura Kretz
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Jan-Philipp Ruff
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Silvia von Karstedt
- Department of Translational Genomics, University Hospital Cologne, Weyertal 115b, 50931 Cologne, Germany.
- Cologne Excellence Cluster on Cellular Stress Response in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany.
| | - Andreas Hillenbrand
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
| | - Johannes Lemke
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
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Cwiklowska K, Westhoff MA, Freisinger S, Dwucet A, Halatsch ME, Knippschild U, Debatin KM, Schirmbeck R, Winiarski L, Oleksyszyn J, Wirtz CR, Burster T. Viability of glioblastoma stem cells is effectively reduced by diisothiocyanate-derived mercapturic acids. Oncol Lett 2018; 16:6181-6187. [PMID: 30344758 DOI: 10.3892/ol.2018.9347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 10/06/2016] [Accepted: 02/01/2017] [Indexed: 12/19/2022] Open
Abstract
Glioblastoma is the most aggressive tumor of the central nervous system and is manifested by diffuse invasion of glioblastoma stem cells into the healthy tissue, chemoresistance and recurrence. Despite aggressive therapy, consisting of maximal surgical resection, radiotherapy and chemotherapy with temozolomide (Temodal®), life expectancy of patients with glioblastoma is typically less than 15 months. In general, natural isothiocyanates isolated from plants of the Cruciferae family are selectively cytotoxic to tumor cells. It has been demonstrated previously that diisothiocyanate-derived mercapturic acids are highly cytotoxic to colon cancer cells. In the present study, the application of diisothiocyanate-derived mercapturic acids led to a decrease in the viability of an established glioblastoma cell line, primary patient-derived sphere-cultured stem cell-enriched cell populations (SCs), and cells differentiated from SCs. Consequently, targeting glioblastoma cells by diisothiocyanate-derived mercapturic acids is a promising approach to restrict tumor cell growth and may be a novel therapeutic intervention for the treatment of glioblastoma.
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Affiliation(s)
- Kamila Cwiklowska
- Department of Neurosurgery, Surgery Center, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Mike-Andrew Westhoff
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Simon Freisinger
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Annika Dwucet
- Department of Neurosurgery, Surgery Center, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Marc-Eric Halatsch
- Department of Neurosurgery, Surgery Center, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, D-89081 Ulm, Germany
| | | | - Lukasz Winiarski
- Faculty of Chemistry, Wroclaw University of Technology, 50-370 Wroclaw, Poland
| | - Jozef Oleksyszyn
- Faculty of Chemistry, Wroclaw University of Technology, 50-370 Wroclaw, Poland
| | - Christian Rainer Wirtz
- Department of Neurosurgery, Surgery Center, Ulm University Medical Center, D-89081 Ulm, Germany
| | - Timo Burster
- Department of Neurosurgery, Surgery Center, Ulm University Medical Center, D-89081 Ulm, Germany
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Xu P, Werner JU, Milerski S, Hamp CM, Kuzenko T, Jähnert M, Gottmann P, de Roy L, Warnecke D, Abaei A, Palmer A, Huber-Lang M, Dürselen L, Rasche V, Schürmann A, Wabitsch M, Knippschild U. Diet-Induced Obesity Affects Muscle Regeneration After Murine Blunt Muscle Trauma-A Broad Spectrum Analysis. Front Physiol 2018; 9:674. [PMID: 29922174 PMCID: PMC5996306 DOI: 10.3389/fphys.2018.00674] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/15/2018] [Indexed: 12/14/2022] Open
Abstract
Injury to skeletal muscle affects millions of people worldwide. The underlying regenerative process however, is a very complex mechanism, time-wise highly coordinated, and subdivided in an initial inflammatory, a regenerative and a remodeling phase. Muscle regeneration can be impaired by several factors, among them diet-induced obesity (DIO). In order to evaluate if obesity negatively affects healing processes after trauma, we utilized a blunt injury approach to damage the extensor iliotibialis anticus muscle on the left hind limb of obese and normal weight C57BL/6J without showing any significant differences in force input between normal weight and obese mice. Magnetic resonance imaging (MRI) of the injury and regeneration process revealed edema formation and hemorrhage exudate in muscle tissue of normal weight and obese mice. In addition, morphological analysis of physiological changes revealed tissue necrosis, immune cell infiltration, extracellular matrix (ECM) remodeling, and fibrosis formation in the damaged muscle tissue. Regeneration was delayed in muscles of obese mice, with a higher incidence of fibrosis formation due to hampered expression levels of genes involved in ECM organization. Furthermore, a detailed molecular fingerprint in different stages of muscle regeneration underlined a delay or even lack of a regenerative response to injury in obese mice. A time-lapse heatmap determined 81 differentially expressed genes (DEG) with at least three hits in our model at all-time points, suggesting key candidates with a high impact on muscle regeneration. Pathway analysis of the DEG revealed five pathways with a high confidence level: myeloid leukocyte migration, regulation of tumor necrosis factor production, CD4-positive, alpha-beta T cell differentiation, ECM organization, and toll-like receptor (TLR) signaling. Moreover, changes in complement-, Wnt-, and satellite cell-related genes were found to be impaired in obese animals after trauma. Furthermore, histological satellite cell evaluation showed lower satellite cell numbers in the obese model upon injury. Ankrd1, C3ar1, Ccl8, Mpeg1, and Myog expression levels were also verified by qPCR. In summary, increased fibrosis formation, the reduction of Pax7+ satellite cells as well as specific changes in gene expression and signaling pathways could explain the delay of tissue regeneration in obese mice post trauma.
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Affiliation(s)
- Pengfei Xu
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Jens-Uwe Werner
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Sebastian Milerski
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Carmen M Hamp
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Tatjana Kuzenko
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Markus Jähnert
- Department of Experimental Diabetology, German Institute of Human Nutrition, Potsdam-Rehbrücke, Potsdam, Germany
| | - Pascal Gottmann
- Department of Experimental Diabetology, German Institute of Human Nutrition, Potsdam-Rehbrücke, Potsdam, Germany
| | - Luisa de Roy
- Institute of Orthopaedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany
| | - Daniela Warnecke
- Institute of Orthopaedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany
| | - Alireza Abaei
- Core facility "Small Animal Imaging", Ulm University, Ulm, Germany
| | - Annette Palmer
- Institute of Clinical and Experimental Trauma Immunology, Ulm University Hospital, Ulm, Germany
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma Immunology, Ulm University Hospital, Ulm, Germany
| | - Lutz Dürselen
- Institute of Orthopaedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany
| | - Volker Rasche
- Core facility "Small Animal Imaging", Ulm University, Ulm, Germany
| | - Annette Schürmann
- Department of Experimental Diabetology, German Institute of Human Nutrition, Potsdam-Rehbrücke, Potsdam, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Ulm University Hospital for Pediatrics and Adolescent Medicine, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
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García-Reyes B, Witt L, Jansen B, Karasu E, Gehring T, Leban J, Henne-Bruns D, Pichlo C, Brunstein E, Baumann U, Wesseler F, Rathmer B, Schade D, Peifer C, Knippschild U. Discovery of Inhibitor of Wnt Production 2 (IWP-2) and Related Compounds As Selective ATP-Competitive Inhibitors of Casein Kinase 1 (CK1) δ/ε. J Med Chem 2018; 61:4087-4102. [PMID: 29630366 DOI: 10.1021/acs.jmedchem.8b00095] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Inhibitors of Wnt production (IWPs) are known antagonists of the Wnt pathway, targeting the membrane-bound O-acyltransferase porcupine (Porcn) and thus preventing a crucial Wnt ligand palmitoylation. Since IWPs show structural similarities to benzimidazole-based CK1 inhibitors, we hypothesized that IWPs could also inhibit CK1 isoforms. Molecular modeling revealed a plausible binding mode of IWP-2 in the ATP binding pocket of CK1δ which was confirmed by X-ray analysis. In vitro kinase assays demonstrated IWPs to be ATP-competitive inhibitors of wtCK1δ. IWPs also strongly inhibited the gatekeeper mutant M82FCK1δ. When profiled in a panel of 320 kinases, IWP-2 specifically inhibited CK1δ. IWP-2 and IWP-4 also inhibited the viability of various cancer cell lines. By a medicinal chemistry approach, we developed improved IWP-derived CK1 inhibitors. Our results suggest that the effects of IWPs are not limited to Porcn, but also might influence CK1δ/ε-related pathways.
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Affiliation(s)
- Balbina García-Reyes
- Department of General and Visceral Surgery , Ulm University Hospital , Albert-Einstein-Allee 23 , D-89081 Ulm , Germany
| | - Lydia Witt
- Institute of Pharmacy , Christian-Albrechts-University of Kiel , Gutenbergstraße 76 , D-24116 Kiel , Germany
| | - Björn Jansen
- Institute of Pharmacy , Christian-Albrechts-University of Kiel , Gutenbergstraße 76 , D-24116 Kiel , Germany
| | - Ebru Karasu
- Department of General and Visceral Surgery , Ulm University Hospital , Albert-Einstein-Allee 23 , D-89081 Ulm , Germany
| | - Tanja Gehring
- Department of General and Visceral Surgery , Ulm University Hospital , Albert-Einstein-Allee 23 , D-89081 Ulm , Germany
| | - Johann Leban
- Oncotyrol GmbH , Karl-Kapferer-Straße 5 , 6020 Innsbruck , Austria
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery , Ulm University Hospital , Albert-Einstein-Allee 23 , D-89081 Ulm , Germany
| | - Christian Pichlo
- Department for Chemistry , University of Cologne , Zülpicher Str. 47B , D-50674 Cologne , Germany
| | - Elena Brunstein
- Department for Chemistry , University of Cologne , Zülpicher Str. 47B , D-50674 Cologne , Germany
| | - Ulrich Baumann
- Department for Chemistry , University of Cologne , Zülpicher Str. 47B , D-50674 Cologne , Germany
| | - Fabian Wesseler
- Department of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Str. 6 , D-44227 Dortmund , Germany
| | - Bernd Rathmer
- Department of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Str. 6 , D-44227 Dortmund , Germany
| | - Dennis Schade
- Department of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Str. 6 , D-44227 Dortmund , Germany.,Institute of Pharmacy , Ernst-Moritz-Arndt-University of Greifswald , Felix-Hausdorff-Str. 1 , D-17489 Greifswald , Germany
| | - Christian Peifer
- Institute of Pharmacy , Christian-Albrechts-University of Kiel , Gutenbergstraße 76 , D-24116 Kiel , Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery , Ulm University Hospital , Albert-Einstein-Allee 23 , D-89081 Ulm , Germany
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Wille C, Eiseler T, Langenberger ST, Richter J, Mizuno K, Radermacher P, Knippschild U, Huber-Lang M, Seufferlein T, Paschke S. PKD regulates actin polymerization, neutrophil deformability, and transendothelial migration in response to fMLP and trauma. J Leukoc Biol 2018; 104:615-630. [PMID: 29656400 DOI: 10.1002/jlb.4a0617-251rr] [Citation(s) in RCA: 6] [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] [Received: 06/21/2017] [Revised: 02/20/2018] [Accepted: 03/19/2018] [Indexed: 12/17/2022] Open
Abstract
Neutrophils are important mediators of the innate immune defense and of the host response to a physical trauma. Because aberrant infiltration of injured sites by neutrophils was shown to cause adverse effects after trauma, we investigated how neutrophil infiltration could be modulated at the cellular level. Our data indicate that protein kinase D (PKD) is a vital regulator of neutrophil transmigration. PKD phosphorylates the Cofilin-phosphatase Slingshot-2L (SSH-2L). SSH-2L in turn dynamically regulates Cofilin activity and actin polymerization in response to a chemotactic stimulus for neutrophils, for example, fMLP. Here, we show that inhibition of PKD by two specific small molecule inhibitors results in broad, unrestricted activation of Cofilin and strongly increases the F-actin content of neutrophils even under basal conditions. This phenotype correlates with a significantly impaired neutrophil deformability as determined by optical stretcher analysis. Consequently, inhibition of PKD impaired chemotaxis as shown by reduced extravasation of neutrophils. Consequently, we demonstrate that transendothelial passage of both, neutrophil-like NB4 cells and primary PMNs recovered from a hemorrhagic shock trauma model was significantly reduced. Thus, inhibition of PKD may represent a promising modulator of the neutrophil response to trauma.
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Affiliation(s)
- Christoph Wille
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - Tim Eiseler
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | | | - Julia Richter
- Department of General and Visceral Surgery, Ulm University, Ulm, Germany
| | - Kensaku Mizuno
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Peter Radermacher
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University, Ulm, Germany
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital, Ulm, Germany
| | | | - Stephan Paschke
- Department of General and Visceral Surgery, Ulm University, Ulm, Germany
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Richter J, Kretz AL, Lemke J, Fauler M, Werner JU, Paschke S, Leithäuser F, Henne-Bruns D, Hillenbrand A, Knippschild U. CK1α overexpression correlates with poor survival in colorectal cancer. BMC Cancer 2018; 18:140. [PMID: 29409464 PMCID: PMC5801892 DOI: 10.1186/s12885-018-4019-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/22/2018] [Indexed: 12/20/2022] Open
Abstract
Background Colorectal cancer (CRC) is the fourth leading cause of cancer related deaths worldwide and prognosis in advanced tumor stage still remains poor. Since CK1 isoforms have been reported to be deregulated in several tumor entities CK1 has emerged as a novel drug target in cancer therapy. In this study we set out to investigate whether CK1α might have the potential to serve as prognostic marker. Methods CK1α RNA and protein expression levels in healthy and tumor tissue of CRC patients were analyzed using quantitative real-time PCR and Western Blot analysis, respectively. Prognostic relevance was investigated by correlating obtained CK1α expression levels with patients’ survival rate generating Kaplan-Meier survival plots. Results It could be shown that CK1α is overexpressed in colorectal tumor tissue compared to normal tissue and CK1α overexpression in tumor tissue correlates with poor survival in CRC patients. Results become more significant when only considering patients with high-grade tumors, as well as patients assigned to UICC II and UICC III stage. Furthermore, Cox regression analysis revealed that CK1α is an independent prognostic factor. In addition, tumors expressing decreased levels of the kinase reveal positive effects on overall survival when localized in the right colon compared to those in the left side. Conclusion In summary, this study provides evidence for the first time that CK1α RNA levels might serve as prognostic marker for CRC. Electronic supplementary material The online version of this article (10.1186/s12885-018-4019-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Julia Richter
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Anna-Laura Kretz
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Johannes Lemke
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Michael Fauler
- Ulm University, Institute of General Physiology, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Jens-Uwe Werner
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Stephan Paschke
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Frank Leithäuser
- Department of Pathology, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Andreas Hillenbrand
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
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Werner JU, Tödter K, Xu P, Lockhart L, Jähnert M, Gottmann P, Schürmann A, Scheja L, Wabitsch M, Knippschild U. Comparison of Fatty Acid and Gene Profiles in Skeletal Muscle in Normal and Obese C57BL/6J Mice before and after Blunt Muscle Injury. Front Physiol 2018; 9:19. [PMID: 29441023 PMCID: PMC5797686 DOI: 10.3389/fphys.2018.00019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 01/08/2018] [Indexed: 01/14/2023] Open
Abstract
Injury and obesity are two major health burdens affecting millions of people worldwide. Obesity is recognized as a state of chronic inflammation accompanied by various co-morbidities like T2D or cardiovascular diseases. There is increasing evidence that obesity impairs muscle regeneration, which is mainly due to chronic inflammation and to excessive accumulation of lipids in adipose and non-adipose tissue. To compare fatty acid profiles and changes in gene expression at different time points after muscle injury, we used an established drop tower-based model with a defined force input to damage the extensor iliotibialis anticus on the left hind limb of female C57BL/6J mice of normal weight and obese mice. Although most changes in fatty acid content in muscle tissue are diet related, levels of eicosaenoic (normal weight) and DHG-linolenic acid (obese) in the phospholipid and docosahexaenoic acid (normal weight) in the triglyceride fraction are altered after injury. Furthermore, changes in gene transcription were detected in 3829 genes in muscles of normal weight mice, whereas only 287 genes were altered in muscles of obese mice after trauma. Alterations were found within several pathways, among them notch-signaling, insulin-signaling, sonic hedgehog-signaling, apoptosis related pathways, fat metabolism related cholesterol homeostasis, fatty acid biosynthetic process, fatty acid elongation, and acyl-CoA metabolic process. We could show that genes involved in fat metabolism are affected 3 days after trauma induction mostly in normal weight but not in obese mice. The strongest effects were observed in normal weight mice for Alox5ap, the activating protein for leukotriene synthesis, and Apobec1, an enzyme substantial for LDL synthesis. In summary, we show that obesity changes the fat content of skeletal muscle and generally shows a negative impact upon blunt muscle injury on various cellular processes, among them fatty acid related metabolism, notch-, insulin-, sonic hedgehog-signaling, and apoptosis.
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Affiliation(s)
- Jens-Uwe Werner
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Klaus Tödter
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Pengfei Xu
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Lydia Lockhart
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Markus Jähnert
- Department of Experimental Diabetology, German Institute of Human Nutrition, Potsdam, Germany
| | - Pascal Gottmann
- Department of Experimental Diabetology, German Institute of Human Nutrition, Potsdam, Germany
| | - Annette Schürmann
- Department of Experimental Diabetology, German Institute of Human Nutrition, Potsdam, Germany
| | - Ludger Scheja
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, University Hospital for Pediatrics and Adolescent Medicine, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
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44
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Yokoyama S, Higashi M, Kitamoto S, Oeldorf M, Knippschild U, Kornmann M, Maemura K, Kurahara H, Wiest E, Hamada T, Kitazono I, Goto Y, Tasaki T, Hiraki T, Hatanaka K, Mataki Y, Taguchi H, Hashimoto S, Batra SK, Tanimoto A, Yonezawa S, Hollingsworth MA. Aberrant methylation of MUC1 and MUC4 promoters are potential prognostic biomarkers for pancreatic ductal adenocarcinomas. Oncotarget 2018; 7:42553-42565. [PMID: 27283771 PMCID: PMC5173155 DOI: 10.18632/oncotarget.9924] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 05/01/2016] [Indexed: 01/14/2023] Open
Abstract
Pancreatic cancer is still a disease of high mortality despite availability of diagnostic techniques. Mucins (MUC) play crucial roles in carcinogenesis and tumor invasion in pancreatic neoplasms. MUC1 and MUC4 are high molecular weight transmembrane mucins. These are overexpressed in many carcinomas, and high expression of these molecules is a risk factor associated with poor prognosis. We evaluated the methylation status of MUC1 and MUC4 promoter regions in pancreatic tissue samples from 169 patients with various pancreatic lesions by the methylation specific electrophoresis (MSE) method. These results were compared with expression of MUC1 and MUC4, several DNA methylation/demethylation factors (e.g. ten-eleven translocation or TET, and activation-induced cytidine deaminase or AID) and CAIX (carbonic anhydrase IX, as a hypoxia biomarker). These results were also analyzed with clinicopathological features including time of overall survival of PDAC patients. We show that the DNA methylation status of the promoters of MUC1 and MUC4 in pancreatic tissue correlates with the expression of MUC1 and MUC4 mRNA. In addition, the expression of several DNA methylation/demethylation factors show a significant correlation with MUC1 and MUC4 methylation status. Furthermore, CAIX expression significantly correlates with the expression of MUC1 and MUC4. Interestingly, our results indicate that low methylation of MUC1 and/or MUC4 promoters correlates with decreased overall survival. This is the first report to show a relationship between MUC1 and/or MUC4 methylation status and prognosis. Analysis of epigenetic changes in mucin genes may be of diagnostic utility and one of the prognostic predictors for patients with PDAC.
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Affiliation(s)
- Seiya Yokoyama
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan.,Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michiyo Higashi
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan.,Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Sho Kitamoto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Monika Oeldorf
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Marko Kornmann
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Kosei Maemura
- Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroshi Kurahara
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Edwin Wiest
- Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Tomofumi Hamada
- Department of Oral Surgery, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan
| | - Ikumi Kitazono
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Yuko Goto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Takashi Tasaki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Tsubasa Hiraki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Kazuhito Hatanaka
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Yuko Mataki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Hiroki Taguchi
- Department of Digestive and Life-Style Related Diseases, Human and Environmental Sciences, Health Research, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shinichi Hashimoto
- Department of Digestive and Life-Style Related Diseases, Human and Environmental Sciences, Health Research, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Akihide Tanimoto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Suguru Yonezawa
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
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45
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Dolde C, Bischof J, Grüter S, Montada A, Halekotte J, Peifer C, Kalbacher H, Baumann U, Knippschild U, Suter B. A CK1 FRET biosensor reveals that DDX3X is an essential activator of CK1ε. J Cell Sci 2018; 131:jcs.207316. [PMID: 29222110 PMCID: PMC5818060 DOI: 10.1242/jcs.207316] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/13/2017] [Indexed: 01/09/2023] Open
Abstract
Casein kinase 1 (CK1) plays central roles in various signal transduction pathways and performs many cellular activities. For many years CK1 was thought to act independently of modulatory subunits and in a constitutive manner. Recently, DEAD box RNA helicases, in particular DEAD box RNA helicase 3 X-linked (DDX3X), were found to stimulate CK1 activity in vitro. In order to observe CK1 activity in living cells and to study its interaction with DDX3X, we developed a CK1-specific FRET biosensor. This tool revealed that DDX3X is indeed required for full CK1 activity in living cells. Two counteracting mechanisms control the activity of these enzymes. Phosphorylation by CK1 impairs the ATPase activity of DDX3X and RNA destabilizes the DDX3X–CK1 complex. We identified possible sites of interaction between DDX3X and CK1. While mutations identified in the DDX3X genes of human medulloblastoma patients can enhance CK1 activity in living cells, the mechanism of CK1 activation by DDX3X points to a possible therapeutic approach in CK1-related diseases such as those caused by tumors driven by aberrant Wnt/β-catenin and Sonic hedgehog (SHH) activation. Indeed, CK1 peptides can reduce CK1 activity. Highlighted Article: A FRET biosensor reveals DDX3X as an essential activator of the CK1 kinase in living cells. Its CK1-activating function is counteracted by its ATPase activity and also by CK1 peptides.
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Affiliation(s)
- Christine Dolde
- Institute of Cell Biology, Department of Biology, University of Bern, Baltzerstrasse 4, 3012 Bern, Switzerland
| | - Joachim Bischof
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Simon Grüter
- Institute of Cell Biology, Department of Biology, University of Bern, Baltzerstrasse 4, 3012 Bern, Switzerland
| | - Anna Montada
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Otto-Fischer-Str. 12-14, 50674 Cologne, Germany
| | - Jakob Halekotte
- Institute for Pharmaceutical Chemistry, Christian Albrechts University, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Christian Peifer
- Institute for Pharmaceutical Chemistry, Christian Albrechts University, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Hubert Kalbacher
- Interfaculty Institute of Biochemistry, University of Tübingen, Ob dem Himmelreich 7, 72074 Tübingen, Germany
| | - Ulrich Baumann
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Otto-Fischer-Str. 12-14, 50674 Cologne, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Beat Suter
- Institute of Cell Biology, Department of Biology, University of Bern, Baltzerstrasse 4, 3012 Bern, Switzerland
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46
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Rupakova NA, Bakulev VA, Knippschild U, García-Reyes B, Eltsov OS, Slesarev GP, Beliaev N, Slepukhin PA, Witt L, Peifer C, Beryozkina TV. Design and synthesis of N-benzimidazol-2-yl-N'-sulfonyl acetamidines. ARKIVOC 2017. [DOI: 10.24820/ark.5550190.p010.200] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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47
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Wolff S, Xiao Z, Wittau M, Süssner N, Stöter M, Knippschild U. Corrigendum to "interaction of casein kinase 1 delta (CK1<delta>) with the light chain LC2 of microtubule associated protein 1A (MAP1A)" [Biochim. Biophys. Acta 1745/2 (2005) 196-2006]. Biochim Biophys Acta Mol Cell Res 2017; 1864:1923. [PMID: 28571942 DOI: 10.1016/j.bbamcr.2017.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sonja Wolff
- Department of General and Visceral Surgery, Surgery Center, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Zhenyu Xiao
- Department of General and Visceral Surgery, Surgery Center, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Mathias Wittau
- Department of General and Visceral Surgery, Surgery Center, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Nadine Süssner
- Department of General and Visceral Surgery, Surgery Center, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Martin Stöter
- Department of General and Visceral Surgery, Surgery Center, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Surgery Center, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
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48
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Bischof J, Westhoff MA, Wagner JE, Halatsch ME, Trentmann S, Knippschild U, Wirtz CR, Burster T. Cancer stem cells: The potential role of autophagy, proteolysis, and cathepsins in glioblastoma stem cells. Tumour Biol 2017; 39:1010428317692227. [PMID: 28347245 DOI: 10.1177/1010428317692227] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
One major obstacle in cancer therapy is chemoresistance leading to tumor recurrence and metastasis. Cancer stem cells, in particular glioblastoma stem cells, are highly resistant to chemotherapy, radiation, and immune recognition. In case of immune recognition, several survival mechanisms including, regulation of autophagy, proteases, and cell surface major histocompatibility complex class I molecules, are found in glioblastoma stem cells. In different pathways, cathepsins play a crucial role in processing functional proteins that are necessary for several processes and proper cell function. Consequently, strategies targeting these pathways in glioblastoma stem cells are promising approaches to interfere with tumor cell survival and will be discussed in this review.
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Affiliation(s)
- Joachim Bischof
- 1 Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Mike-Andrew Westhoff
- 2 Department Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Johanna Elisabeth Wagner
- 3 Department of Neurosurgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Marc-Eric Halatsch
- 3 Department of Neurosurgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Stephanie Trentmann
- 1 Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Uwe Knippschild
- 1 Department of General and Visceral Surgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Christian Rainer Wirtz
- 3 Department of Neurosurgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
| | - Timo Burster
- 3 Department of Neurosurgery, Surgery Center, Ulm University Medical Center, Ulm University, Ulm, Germany
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49
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Kretz AL, Schaum M, Richter J, Kitzig EF, Engler CC, Leithäuser F, Henne-Bruns D, Knippschild U, Lemke J. CDK9 is a prognostic marker and therapeutic target in pancreatic cancer. Tumour Biol 2017; 39:1010428317694304. [PMID: 28231737 DOI: 10.1177/1010428317694304] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Despite recent advances in diagnosis and therapy, prognosis of pancreatic cancer still remains very poor. Besides valid prognostic markers, novel therapeutic approaches are urgently needed. The family of cyclin-dependent kinases comprises 20 kinases which contribute to malignancy by promoting proliferation, migration, invasion, and apoptotic resistance of cancer cells. In this work, we investigated the role of CDK9 in pancreatic cancer. Immunohistochemical analysis of CDK9 expression in tumor and normal tissue of pancreatic cancer patients revealed an overexpression of CDK9 in pancreatic cancer tissue. In addition, high CDK9 expression in tumor tissue is associated with significantly shortened survival, especially in well-differentiated tumors. Moreover, the therapeutic potential of selective CDK9 inhibition on pancreatic cancer cells was evaluated by analysis of cell viability, long-term survival, and induction of apoptosis and characterized by western blotting and flow cytometry. Pharmacological CDK9 inhibition by SNS-032 drastically reduced cell viability in pancreatic cancer cells and potently suppressed long-term survival. Analyzing the mechanism of action revealed that CDK9 inhibition induced apoptosis and cell cycle arrest in a time-dependent manner by suppression of anti-apoptotic proteins. Furthermore, CDK9 inhibition potently enhances the therapeutic effect of chemotherapeutics in pancreatic cancer cells. In conclusion, we identified CDK9 as a negative prognostic marker in pancreatic cancer. Furthermore, pharmacological CDK9 inhibition is a novel and promising therapeutic approach for pancreatic cancer.
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Affiliation(s)
- Anna-Laura Kretz
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Monika Schaum
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Julia Richter
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Ella F Kitzig
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Christine C Engler
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Frank Leithäuser
- 2 Department of Pathology, Ulm University Hospital, Ulm, Germany
| | - Doris Henne-Bruns
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Uwe Knippschild
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
| | - Johannes Lemke
- 1 Department of General and Visceral Surgery, Center for Surgery, Ulm University Hospital, Ulm, Germany
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50
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Halekotte J, Witt L, Ianes C, Krüger M, Bührmann M, Rauh D, Pichlo C, Brunstein E, Luxenburger A, Baumann U, Knippschild U, Bischof J, Peifer C. Optimized 4,5-Diarylimidazoles as Potent/Selective Inhibitors of Protein Kinase CK1δ and Their Structural Relation to p38α MAPK. Molecules 2017; 22:molecules22040522. [PMID: 28338621 PMCID: PMC6154583 DOI: 10.3390/molecules22040522] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/17/2017] [Accepted: 03/20/2017] [Indexed: 02/07/2023] Open
Abstract
The involvement of protein kinase CK1δ in the pathogenesis of severe disorders such as Alzheimer’s disease, amyotrophic lateral sclerosis, familial advanced sleep phase syndrome, and cancer has dramatically increased interest in the development of effective small molecule inhibitors for both therapeutic application and basic research. Unfortunately, the design of CK1 isoform-specific compounds has proved to be highly complicated due to the existence of six evolutionarily conserved human CK1 members that possess similar, different, or even opposite physiological and pathophysiological implications. Consequently, only few potent and selective CK1δ inhibitors have been reported so far and structurally divergent approaches are urgently needed in order to establish SAR that might enable complete discrimination of CK1 isoforms and related p38α MAPK. In this study we report on design and characterization of optimized 4,5-diarylimidazoles as highly effective ATP-competitive inhibitors of CK1δ with compounds 11b (IC50 CK1δ = 4 nM, IC50 CK1ε = 25 nM), 12a (IC50 CK1δ = 19 nM, IC50 CK1ε = 227 nM), and 16b (IC50 CK1δ = 8 nM, IC50 CK1ε = 81 nM) being among the most potent CK1δ-targeting agents published to date. Inhibitor compound 11b, displaying potential as a pharmacological tool, has further been profiled over a panel of 321 protein kinases exhibiting high selectivity. Cellular efficacy has been evaluated in human pancreatic cancer cell lines Colo357 (EC50 = 3.5 µM) and Panc89 (EC50 = 1.5 µM). SAR is substantiated by X-ray crystallographic analysis of 16b in CK1δ and 11b in p38α.
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Affiliation(s)
- Jakob Halekotte
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Gutenbergstraße 76, D-24118 Kiel, Germany.
| | - Lydia Witt
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Gutenbergstraße 76, D-24118 Kiel, Germany.
| | - Chiara Ianes
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, D-89081 Ulm, Germany.
| | - Marc Krüger
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, D-89081 Ulm, Germany.
| | - Mike Bührmann
- Institute of Chemical Biology, Dortmund University of Technology, Otto-Hahn-Straße 4a, D-44227 Dortmund, Germany.
| | - Daniel Rauh
- Institute of Chemical Biology, Dortmund University of Technology, Otto-Hahn-Straße 4a, D-44227 Dortmund, Germany.
| | - Christian Pichlo
- Department for Chemistry, University of Cologne, Otto-Fischer-Straße 12-14, D-50674 Cologne, Germany.
| | - Elena Brunstein
- Department for Chemistry, University of Cologne, Otto-Fischer-Straße 12-14, D-50674 Cologne, Germany.
| | - Andreas Luxenburger
- The Ferrier Research Institute, Victoria University of Wellington, Gracefield Research Centre, 69 Gracefield Road, Lower Hutt P.O. Box 33-436, New Zealand.
| | - Ulrich Baumann
- Department for Chemistry, University of Cologne, Otto-Fischer-Straße 12-14, D-50674 Cologne, Germany.
| | - Uwe Knippschild
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, D-89081 Ulm, Germany.
| | - Joachim Bischof
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, D-89081 Ulm, Germany.
| | - Christian Peifer
- Institute of Pharmacy, Christian-Albrechts-University of Kiel, Gutenbergstraße 76, D-24118 Kiel, Germany.
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