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Schamarek I, Anders L, Chakaroun RM, Kovacs P, Rohde-Zimmermann K. The role of the oral microbiome in obesity and metabolic disease: potential systemic implications and effects on taste perception. Nutr J 2023; 22:28. [PMID: 37237407 DOI: 10.1186/s12937-023-00856-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Obesity and its metabolic sequelae still comprise a challenge when it comes to understanding mechanisms, which drive these pandemic diseases. The human microbiome as a potential key player has attracted the attention of broader research for the past decade. Most of it focused on the gut microbiome while the oral microbiome has received less attention. As the second largest niche, the oral microbiome is associated with a multitude of mechanisms, which are potentially involved in the complex etiology of obesity and associated metabolic diseases. These mechanisms include local effects of oral bacteria on taste perception and subsequent food preference as well as systemic effects on adipose tissue function, the gut microbiome and systemic inflammation. This review summarizes a growing body of research, pointing towards a more prominent role of the oral microbiome in obesity and associated metabolic diseases than expected. Ultimately, our knowledge on the oral microbiome may support the development of new patient oriented therapeutic approaches inevitable to relieve the health burden of metabolic diseases and to reach long-term benefits in patients´ lives.
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Affiliation(s)
- Imke Schamarek
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), Helmholtz Center Munich at the University Leipzig and the University Clinic Leipzig, AöR, Liebigstraße 20, 04103, Leipzig, Germany.
- Department of Medicine III, Division of Endocrinology, Nephrology and Rheumatology, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany.
| | - Lars Anders
- Department of Medicine III, Division of Endocrinology, Nephrology and Rheumatology, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany
| | - Rima M Chakaroun
- Department of Medicine III, Division of Endocrinology, Nephrology and Rheumatology, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 41345, Gothenburg, Sweden
| | - Peter Kovacs
- Department of Medicine III, Division of Endocrinology, Nephrology and Rheumatology, University of Leipzig, Liebigstraße 20, 04103, Leipzig, Germany
- Deutsches Zentrum Für Diabetesforschung, 85764, Neuherberg, Germany
| | - Kerstin Rohde-Zimmermann
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), Helmholtz Center Munich at the University Leipzig and the University Clinic Leipzig, AöR, Liebigstraße 20, 04103, Leipzig, Germany
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2
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Michowski W, Chick JM, Chu C, Kolodziejczyk A, Wang Y, Suski JM, Abraham B, Anders L, Day D, Dunkl LM, Li Cheong Man M, Zhang T, Laphanuwat P, Bacon NA, Liu L, Fassl A, Sharma S, Otto T, Jecrois E, Han R, Sweeney KE, Marro S, Wernig M, Geng Y, Moses A, Li C, Gygi SP, Young RA, Sicinski P. Cdk1 Controls Global Epigenetic Landscape in Embryonic Stem Cells. Mol Cell 2020; 78:459-476.e13. [PMID: 32240602 DOI: 10.1016/j.molcel.2020.03.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/26/2020] [Accepted: 03/08/2020] [Indexed: 12/13/2022]
Abstract
The cyclin-dependent kinase 1 (Cdk1) drives cell division. To uncover additional functions of Cdk1, we generated knockin mice expressing an analog-sensitive version of Cdk1 in place of wild-type Cdk1. In our study, we focused on embryonic stem cells (ESCs), because this cell type displays particularly high Cdk1 activity. We found that in ESCs, a large fraction of Cdk1 substrates is localized on chromatin. Cdk1 phosphorylates many proteins involved in epigenetic regulation, including writers and erasers of all major histone marks. Consistent with these findings, inhibition of Cdk1 altered histone-modification status of ESCs. High levels of Cdk1 in ESCs phosphorylate and partially inactivate Dot1l, the H3K79 methyltransferase responsible for placing activating marks on gene bodies. Decrease of Cdk1 activity during ESC differentiation de-represses Dot1l, thereby allowing coordinated expression of differentiation genes. These analyses indicate that Cdk1 functions to maintain the epigenetic identity of ESCs.
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Affiliation(s)
- Wojciech Michowski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Joel M Chick
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Chen Chu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Aleksandra Kolodziejczyk
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Yichen Wang
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Jan M Suski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Brian Abraham
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Lars Anders
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Daniel Day
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Lukas M Dunkl
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Mitchell Li Cheong Man
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada
| | - Tian Zhang
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Phatthamon Laphanuwat
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Nickolas A Bacon
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Lijun Liu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Anne Fassl
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Samanta Sharma
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Tobias Otto
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Emanuelle Jecrois
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Richard Han
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Katharine E Sweeney
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Samuele Marro
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University Medical School, Stanford, CA 94305, USA
| | - Marius Wernig
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University Medical School, Stanford, CA 94305, USA
| | - Yan Geng
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Alan Moses
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada; Center for Analysis of Genome Evolution and Function, Toronto, ON M5S 3B2, Canada
| | - Cheng Li
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Steven P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Piotr Sicinski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
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3
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Mansour MR, He S, Li Z, Lobbardi R, Abraham BJ, Hug C, Rahman S, Leon TE, Kuang YY, Zimmerman MW, Blonquist T, Gjini E, Gutierrez A, Tang Q, Garcia-Perez L, Pike-Overzet K, Anders L, Berezovskaya A, Zhou Y, Zon LI, Neuberg D, Fielding AK, Staal FJT, Langenau DM, Sanda T, Young RA, Look AT. JDP2: An oncogenic bZIP transcription factor in T cell acute lymphoblastic leukemia. J Exp Med 2018; 215:1929-1945. [PMID: 29941549 PMCID: PMC6028512 DOI: 10.1084/jem.20170484] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 03/14/2018] [Accepted: 05/30/2018] [Indexed: 01/14/2023] Open
Abstract
A substantial subset of patients with T cell acute lymphoblastic leukemia (T-ALL) develops resistance to steroids and succumbs to their disease. JDP2 encodes a bZIP protein that has been implicated as a T-ALL oncogene from insertional mutagenesis studies in mice, but its role in human T-ALL pathogenesis has remained obscure. Here we show that JDP2 is aberrantly expressed in a subset of T-ALL patients and is associated with poor survival. JDP2 is required for T-ALL cell survival, as its depletion by short hairpin RNA knockdown leads to apoptosis. Mechanistically, JDP2 regulates prosurvival signaling through direct transcriptional regulation of MCL1. Furthermore, JDP2 is one of few oncogenes capable of initiating T-ALL in transgenic zebrafish. Notably, thymocytes from rag2:jdp2 transgenic zebrafish express high levels of mcl1 and demonstrate resistance to steroids in vivo. These studies establish JDP2 as a novel oncogene in high-risk T-ALL and implicate overexpression of MCL1 as a mechanism of steroid resistance in JDP2-overexpressing cells.
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Affiliation(s)
- Marc R Mansour
- Department of Haematology, University College London Cancer Institute, London, England, UK
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Shuning He
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Zhaodong Li
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Riadh Lobbardi
- Molecular Pathology and Cancer Center, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Cambridge, MA
| | | | - Clemens Hug
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Sunniyat Rahman
- Department of Haematology, University College London Cancer Institute, London, England, UK
| | - Theresa E Leon
- Department of Haematology, University College London Cancer Institute, London, England, UK
| | - You-Yi Kuang
- Heilongjiang River Fisheries Research Institute of Chinese Academy of Fishery Sciences, Harbin, China
| | - Mark W Zimmerman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Traci Blonquist
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA
| | - Evisa Gjini
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Alejandro Gutierrez
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA
| | - Qin Tang
- Molecular Pathology and Cancer Center, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Cambridge, MA
| | - Laura Garcia-Perez
- Department of Immunohematology, Leiden University Medical Center, Leiden, Netherlands
| | - Karin Pike-Overzet
- Department of Immunohematology, Leiden University Medical Center, Leiden, Netherlands
| | - Lars Anders
- Whitehead Institute for Biomedical Research, Cambridge, MA
| | - Alla Berezovskaya
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Yi Zhou
- Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Cambridge, MA
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA
| | - Leonard I Zon
- Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Cambridge, MA
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA
| | - Donna Neuberg
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA
| | - Adele K Fielding
- Department of Haematology, University College London Cancer Institute, London, England, UK
| | - Frank J T Staal
- Department of Immunohematology, Leiden University Medical Center, Leiden, Netherlands
| | - David M Langenau
- Molecular Pathology and Cancer Center, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department, Harvard University, Cambridge, MA
| | - Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, Singapore
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, MA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA
| | - A Thomas Look
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
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4
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Hydbring P, Wang Y, Fassl A, Li X, Matia V, Otto T, Choi YJ, Sweeney KE, Suski JM, Yin H, Bogorad RL, Goel S, Yuzugullu H, Kauffman KJ, Yang J, Jin C, Li Y, Floris D, Swanson R, Ng K, Sicinska E, Anders L, Zhao JJ, Polyak K, Anderson DG, Li C, Sicinski P. Cell-Cycle-Targeting MicroRNAs as Therapeutic Tools against Refractory Cancers. Cancer Cell 2017; 31:576-590.e8. [PMID: 28399412 PMCID: PMC5425285 DOI: 10.1016/j.ccell.2017.03.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 12/06/2016] [Accepted: 03/09/2017] [Indexed: 01/07/2023]
Abstract
Cyclins and cyclin-dependent kinases (CDKs) are hyperactivated in numerous human tumors. To identify means of interfering with cyclins/CDKs, we performed nine genome-wide screens for human microRNAs (miRNAs) directly regulating cell-cycle proteins. We uncovered a distinct class of miRNAs that target nearly all cyclins/CDKs, which are very effective in inhibiting cancer cell proliferation. By profiling the response of over 120 human cancer cell lines, we derived an expression-based algorithm that can predict the response of tumors to cell-cycle-targeting miRNAs. Using systemic administration of nanoparticle-formulated miRNAs, we inhibited tumor progression in seven mouse xenograft models, including three treatment-refractory patient-derived tumors, without affecting normal tissues. Our results highlight the utility of using cell-cycle-targeting miRNAs for treatment of refractory cancer types.
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Affiliation(s)
- Per Hydbring
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA; Department of Oncology-Pathology, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Yinan Wang
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, School of Life Sciences, Center for Life Sciences and Center for Statistical Science, Peking University, Beijing 100871, China
| | - Anne Fassl
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Xiaoting Li
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Veronica Matia
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Tobias Otto
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Yoon Jong Choi
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Katharine E Sweeney
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Jan M Suski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Hao Yin
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Roman L Bogorad
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Shom Goel
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Haluk Yuzugullu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Kevin J Kauffman
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Junghoon Yang
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Chong Jin
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, School of Life Sciences, Center for Life Sciences and Center for Statistical Science, Peking University, Beijing 100871, China
| | - Yingxiang Li
- Department of Bioinformatics, School of Life Science and Technology, Tongji University, Shanghai 200092, China
| | - Davide Floris
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - Richard Swanson
- Department of Surgery, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Kimmie Ng
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Ewa Sicinska
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Lars Anders
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jean J Zhao
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Kornelia Polyak
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Daniel G Anderson
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA; Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02142, USA; Harvard-MIT Division of Health Sciences & Technology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Cheng Li
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, School of Life Sciences, Center for Life Sciences and Center for Statistical Science, Peking University, Beijing 100871, China.
| | - Piotr Sicinski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02215, USA.
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5
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Shu S, Lin CY, He HH, Witwicki RM, Tabassum DP, Roberts JM, Janiszewska M, Huh SJ, Liang Y, Ryan J, Doherty E, Mohammed H, Guo H, Stover DG, Ekram MB, Brown J, D'Santos C, Krop IE, Dillon D, McKeown M, Ott C, Qi J, Ni M, Rao PK, Duarte M, Wu SY, Chiang CM, Anders L, Young RA, Winer E, Letai A, Barry WT, Carroll JS, Long H, Brown M, Liu XS, Meyer CA, Bradner JE, Polyak K. Response and resistance to BET bromodomain inhibitors in triple-negative breast cancer. Nature 2016; 529:413-417. [PMID: 26735014 PMCID: PMC4854653 DOI: 10.1038/nature16508] [Citation(s) in RCA: 444] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 12/03/2015] [Indexed: 12/15/2022]
Abstract
Triple-negative breast cancer (TNBC) is a heterogeneous and clinically aggressive disease for which there is no targeted therapy. BET bromodomain inhibitors, which have shown efficacy in several models of cancer, have not been evaluated in TNBC. These inhibitors displace BET bromodomain proteins such as BRD4 from chromatin by competing with their acetyl-lysine recognition modules, leading to inhibition of oncogenic transcriptional programs. Here we report the preferential sensitivity of TNBCs to BET bromodomain inhibition in vitro and in vivo, establishing a rationale for clinical investigation and further motivation to understand mechanisms of resistance. In paired cell lines selected for acquired resistance to BET inhibition from previously sensitive TNBCs, we failed to identify gatekeeper mutations, new driver events or drug pump activation. BET-resistant TNBC cells remain dependent on wild-type BRD4, which supports transcription and cell proliferation in a bromodomain-independent manner. Proteomic studies of resistant TNBC identify strong association with MED1 and hyper-phosphorylation of BRD4 attributable to decreased activity of PP2A, identified here as a principal BRD4 serine phosphatase. Together, these studies provide a rationale for BET inhibition in TNBC and present mechanism-based combination strategies to anticipate clinical drug resistance.
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MESH Headings
- Animals
- Azepines/pharmacology
- Azepines/therapeutic use
- Binding, Competitive/drug effects
- Casein Kinase II/metabolism
- Cell Cycle Proteins
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Proliferation/genetics
- Chromatin/genetics
- Chromatin/metabolism
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Epigenesis, Genetic/drug effects
- Epigenesis, Genetic/genetics
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Genome, Human/drug effects
- Genome, Human/genetics
- Humans
- Mediator Complex Subunit 1/metabolism
- Mice
- Nuclear Proteins/antagonists & inhibitors
- Nuclear Proteins/deficiency
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Phosphorylation/drug effects
- Phosphoserine/metabolism
- Protein Binding/drug effects
- Protein Phosphatase 2/metabolism
- Protein Structure, Tertiary/drug effects
- Proteomics
- Transcription Factors/antagonists & inhibitors
- Transcription Factors/deficiency
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transcription, Genetic/drug effects
- Triazoles/pharmacology
- Triazoles/therapeutic use
- Triple Negative Breast Neoplasms/drug therapy
- Triple Negative Breast Neoplasms/genetics
- Triple Negative Breast Neoplasms/metabolism
- Triple Negative Breast Neoplasms/pathology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Shaokun Shu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Charles Y Lin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Housheng Hansen He
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, and Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts USA
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, M5G1L7, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, M5G2M9, Canada
| | - Robert M Witwicki
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Doris P Tabassum
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Justin M Roberts
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Michalina Janiszewska
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Sung Jin Huh
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Yi Liang
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, M5G1L7, Canada
| | - Jeremy Ryan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Ernest Doherty
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Harvard University, Cambridge, Massachusetts, USA
| | - Hisham Mohammed
- Cancer Research UK, Cambridge Institute, University of Cambridge, UK, CB2 0RE
| | - Hao Guo
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, and Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts USA
| | - Daniel G Stover
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Muhammad B Ekram
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Clive D'Santos
- Cancer Research UK, Cambridge Institute, University of Cambridge, UK, CB2 0RE
| | - Ian E Krop
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Deborah Dillon
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Pathology, Brigham and Women's Hospital, and Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA
| | - Michael McKeown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher Ott
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Jun Qi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Min Ni
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Prakash K Rao
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Melissa Duarte
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Shwu-Yuan Wu
- Simmons Comprehensive Cancer Center, Departments of Biochemistry and Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Cheng-Ming Chiang
- Simmons Comprehensive Cancer Center, Departments of Biochemistry and Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Lars Anders
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA
| | - Eric Winer
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Antony Letai
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - William T Barry
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, and Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts USA
| | - Jason S Carroll
- Cancer Research UK, Cambridge Institute, University of Cambridge, UK, CB2 0RE
| | - Henry Long
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Myles Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - X Shirley Liu
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, and Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Broad Institute, Cambridge, Massachusetts, USA
| | - Clifford A Meyer
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, and Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts USA
| | - James E Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute, Cambridge, Massachusetts, USA
| | - Kornelia Polyak
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women's Hospital, and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Broad Institute, Cambridge, Massachusetts, USA
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6
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Oldridge DA, Wood AC, Weichert-Leahey N, Crimmins I, Sussman R, Winter C, McDaniel LD, Diamond M, Hart LS, Zhu S, Durbin AD, Abraham BJ, Anders L, Tian L, Zhang S, Wei JS, Khan J, Bramlett K, Rahman N, Capasso M, Iolascon A, Gerhard DS, Guidry Auvil JM, Young RA, Hakonarson H, Diskin SJ, Look AT, Maris JM. Genetic predisposition to neuroblastoma mediated by a LMO1 super-enhancer polymorphism. Nature 2015; 528:418-21. [PMID: 26560027 DOI: 10.1038/nature15540] [Citation(s) in RCA: 222] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Accepted: 09/02/2015] [Indexed: 12/30/2022]
Abstract
Neuroblastoma is a paediatric malignancy that typically arises in early childhood, and is derived from the developing sympathetic nervous system. Clinical phenotypes range from localized tumours with excellent outcomes to widely metastatic disease in which long-term survival is approximately 40% despite intensive therapy. A previous genome-wide association study identified common polymorphisms at the LMO1 gene locus that are highly associated with neuroblastoma susceptibility and oncogenic addiction to LMO1 in the tumour cells. Here we investigate the causal DNA variant at this locus and the mechanism by which it leads to neuroblastoma tumorigenesis. We first imputed all possible genotypes across the LMO1 locus and then mapped highly associated single nucleotide polymorphism (SNPs) to areas of chromatin accessibility, evolutionary conservation and transcription factor binding sites. We show that SNP rs2168101 G>T is the most highly associated variant (combined P = 7.47 × 10(-29), odds ratio 0.65, 95% confidence interval 0.60-0.70), and resides in a super-enhancer defined by extensive acetylation of histone H3 lysine 27 within the first intron of LMO1. The ancestral G allele that is associated with tumour formation resides in a conserved GATA transcription factor binding motif. We show that the newly evolved protective TATA allele is associated with decreased total LMO1 expression (P = 0.028) in neuroblastoma primary tumours, and ablates GATA3 binding (P < 0.0001). We demonstrate allelic imbalance favouring the G-containing strand in tumours heterozygous for this SNP, as demonstrated both by RNA sequencing (P < 0.0001) and reporter assays (P = 0.002). These findings indicate that a recently evolved polymorphism within a super-enhancer element in the first intron of LMO1 influences neuroblastoma susceptibility through differential GATA transcription factor binding and direct modulation of LMO1 expression in cis, and this leads to an oncogenic dependency in tumour cells.
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Affiliation(s)
- Derek A Oldridge
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA.,Medical Scientist Training Program, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Andrew C Wood
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, Auckland Region 1142, New Zealand
| | - Nina Weichert-Leahey
- Department of Pediatric Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, USA.,Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Ian Crimmins
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Robyn Sussman
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Cynthia Winter
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Lee D McDaniel
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Maura Diamond
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Lori S Hart
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Shizhen Zhu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Adam D Durbin
- Department of Pediatric Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, USA.,Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Brian J Abraham
- Whitehead Institute for Biomedical Research and MIT, Boston, Massachusetts 02142, USA
| | - Lars Anders
- Whitehead Institute for Biomedical Research and MIT, Boston, Massachusetts 02142, USA
| | - Lifeng Tian
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Shile Zhang
- Pediatric Oncology Branch, National Cancer Institute, Bethesda, Maryland 20892, USA
| | - Jun S Wei
- Pediatric Oncology Branch, National Cancer Institute, Bethesda, Maryland 20892, USA
| | - Javed Khan
- Pediatric Oncology Branch, National Cancer Institute, Bethesda, Maryland 20892, USA
| | | | | | - Mario Capasso
- University of Naples Federico II, 80131 Naples, Italy.,CEINGE Biotecnologie Avanzate, 80131 Naples, Italy
| | - Achille Iolascon
- University of Naples Federico II, 80131 Naples, Italy.,CEINGE Biotecnologie Avanzate, 80131 Naples, Italy
| | - Daniela S Gerhard
- Office of Cancer Genomics, National Cancer Institute, Bethesda, Maryland 20892, USA
| | - Jaime M Guidry Auvil
- Office of Cancer Genomics, National Cancer Institute, Bethesda, Maryland 20892, USA
| | - Richard A Young
- Whitehead Institute for Biomedical Research and MIT, Boston, Massachusetts 02142, USA
| | - Hakon Hakonarson
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Sharon J Diskin
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.,Abramson Family Cancer Research Institute, Philadelphia, Pennsylvania 19104, USA
| | - A Thomas Look
- Department of Pediatric Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, USA.,Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - John M Maris
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.,Abramson Family Cancer Research Institute, Philadelphia, Pennsylvania 19104, USA
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7
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Mansour MR, Abraham BJ, Anders L, Berezovskaya A, Gutierrez A, Durbin AD, Etchin J, Lawton L, Sallan SE, Silverman LB, Loh ML, Hunger SP, Sanda T, Young RA, Look AT. Oncogene regulation. An oncogenic super-enhancer formed through somatic mutation of a noncoding intergenic element. Science 2014; 346:1373-7. [PMID: 25394790 PMCID: PMC4720521 DOI: 10.1126/science.1259037] [Citation(s) in RCA: 566] [Impact Index Per Article: 56.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
In certain human cancers, the expression of critical oncogenes is driven from large regulatory elements, called super-enhancers, that recruit much of the cell's transcriptional apparatus and are defined by extensive acetylation of histone H3 lysine 27 (H3K27ac). In a subset of T-cell acute lymphoblastic leukemia (T-ALL) cases, we found that heterozygous somatic mutations are acquired that introduce binding motifs for the MYB transcription factor in a precise noncoding site, which creates a super-enhancer upstream of the TAL1 oncogene. MYB binds to this new site and recruits its H3K27 acetylase-binding partner CBP, as well as core components of a major leukemogenic transcriptional complex that contains RUNX1, GATA-3, and TAL1 itself. Additionally, most endogenous super-enhancers found in T-ALL cells are occupied by MYB and CBP, which suggests a general role for MYB in super-enhancer initiation. Thus, this study identifies a genetic mechanism responsible for the generation of oncogenic super-enhancers in malignant cells.
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Affiliation(s)
- Marc R Mansour
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Department of Haematology, UCL Cancer Institute, University College London, London WC1E 6BT, UK
| | - Brian J Abraham
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Lars Anders
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Alla Berezovskaya
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Alejandro Gutierrez
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Division of Pediatric Hematology-Oncology, Boston Children's Hospital, MA 02115, USA
| | - Adam D Durbin
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Julia Etchin
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Lee Lawton
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Stephen E Sallan
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Division of Pediatric Hematology-Oncology, Boston Children's Hospital, MA 02115, USA
| | - Lewis B Silverman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Division of Pediatric Hematology-Oncology, Boston Children's Hospital, MA 02115, USA
| | - Mignon L Loh
- Department of Pediatrics, Benioff Children's Hospital, University of California San Francisco, CA 94143, USA
| | - Stephen P Hunger
- Pediatric Hematology/Oncology/BMT, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, and Department of Medicine, Yong Loo Lin School of Medicine, 117599, Singapore
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
| | - A Thomas Look
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Division of Pediatric Hematology-Oncology, Boston Children's Hospital, MA 02115, USA.
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8
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Bhalla K, Liu WJ, Thompson K, Anders L, Devarakonda S, Dewi R, Buckley S, Hwang BJ, Polster B, Dorsey SG, Sun Y, Sicinski P, Girnun GD. Cyclin D1 represses gluconeogenesis via inhibition of the transcriptional coactivator PGC1α. Diabetes 2014; 63:3266-78. [PMID: 24947365 PMCID: PMC4392904 DOI: 10.2337/db13-1283] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Hepatic gluconeogenesis is crucial to maintain normal blood glucose during periods of nutrient deprivation. Gluconeogenesis is controlled at multiple levels by a variety of signal transduction and transcriptional pathways. However, dysregulation of these pathways leads to hyperglycemia and type 2 diabetes. While the effects of various signaling pathways on gluconeogenesis are well established, the downstream signaling events repressing gluconeogenic gene expression are not as well understood. The cell-cycle regulator cyclin D1 is expressed in the liver, despite the liver being a quiescent tissue. The most well-studied function of cyclin D1 is activation of cyclin-dependent kinase 4 (CDK4), promoting progression of the cell cycle. We show here a novel role for cyclin D1 as a regulator of gluconeogenic and oxidative phosphorylation (OxPhos) gene expression. In mice, fasting decreases liver cyclin D1 expression, while refeeding induces cyclin D1 expression. Inhibition of CDK4 enhances the gluconeogenic gene expression, whereas cyclin D1-mediated activation of CDK4 represses the gluconeogenic gene-expression program in vitro and in vivo. Importantly, we show that cyclin D1 represses gluconeogenesis and OxPhos in part via inhibition of peroxisome proliferator-activated receptor γ coactivator-1α (PGC1α) activity in a CDK4-dependent manner. Indeed, we demonstrate that PGC1α is novel cyclin D1/CDK4 substrate. These studies reveal a novel role for cyclin D1 on metabolism via PGC1α and reveal a potential link between cell-cycle regulation and metabolic control of glucose homeostasis.
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Affiliation(s)
- Kavita Bhalla
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD
| | - Wan-Ju Liu
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD
| | - Keyata Thompson
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD
| | | | | | - Ruby Dewi
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD
| | - Stephanie Buckley
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD
| | - Bor-Jang Hwang
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD
| | - Brian Polster
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD
| | - Susan G Dorsey
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD Department of Organizational Systems and Adult Health, University of Maryland School of Nursing, Baltimore, MD
| | - Yezhou Sun
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD
| | - Piotr Sicinski
- Dana-Farber Cancer Institute, Boston, MA Department of Genetics, Harvard Medical School, Boston, MA
| | - Geoffrey D Girnun
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD Department of Pathology, Stony Brook School of Medicine, Stony Brook, NY
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9
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Anders L, Guenther MG, Qi J, Fan ZP, Marineau JJ, Rahl PB, Lovén J, Sigova AA, Smith WB, Lee TI, Bradner JE, Young RA. Abstract 3230: Genome-wide localization of anti-cancer drugs. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-3230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
A vast number of small-molecule ligands, including therapeutic drugs under development and in clinical use, elicit their effects by binding specific proteins associated with the genome. An ability to map the direct interactions of a chemical entity with chromatin genome-wide could provide new and important insights into the mechanisms by which such small molecules interfere with tumor cell functions. We have developed a method that couples affinity capture of chemical entities and massively parallel DNA sequencing (Chem-seq) to identify the sites bound by small molecules throughout the human genome. Using Chem-seq, we have uncovered the full repertoire of the genomic sites bound by a BET bromodomain inhibitor, a cyclin-dependent kinase (CDK) inhibitor and a DNA intercalating drug. Moreover, by combining Chem-seq with ChIP-seq, we have characterized the interactions of drugs with their targets throughout the genome of tumor cells. These methods provide a powerful approach to enhance understanding of therapeutic action and characterize the specificity of drugs that interact with DNA or genome-associated proteins.
Citation Format: Lars Anders, Matthew G. Guenther, Jun Qi, Zi Peng Fan, Jason J. Marineau, Peter B. Rahl, Jakob Lovén, Alla A. Sigova, William B. Smith, Tong Ihn Lee, James E. Bradner, Richard A. Young. Genome-wide localization of anti-cancer drugs. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 3230. doi:10.1158/1538-7445.AM2014-3230
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Affiliation(s)
| | | | - Jun Qi
- 2Dana-Farber Cancer Institute, Boston, MA
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10
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Choi YJ, Saez B, Anders L, Hydbring P, Stefano J, Bacon NA, Cook C, Kalaszczynska I, Signoretti S, Young RA, Scadden DT, Sicinski P. D-cyclins repress apoptosis in hematopoietic cells by controlling death receptor Fas and its ligand FasL. Dev Cell 2014; 30:255-67. [PMID: 25087893 DOI: 10.1016/j.devcel.2014.06.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Revised: 03/26/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
Abstract
D-type cyclins (D1, D2, and D3) are components of the mammalian core cell-cycle machinery and function to drive cell proliferation. Here, we report that D-cyclins perform a rate-limiting antiapoptotic function in vivo. We found that acute shutdown of all three D-cyclins in bone marrow of adult mice resulted in massive apoptosis of all hematopoietic cell types. We demonstrate that adult hematopoietic stem cells are particularly dependent on D-cyclins for survival and that they are especially sensitive to cyclin D loss. Surprisingly, we found that the antiapoptotic function of D-cyclins also operates in quiescent hematopoietic stem and progenitor cells. Our analyses revealed that D-cyclins repress the expression of the death receptor Fas and its ligand, FasL. Acute ablation of D-cyclins upregulated these proapoptotic genes and led to Fas- and caspase 8-dependent apoptosis. These results reveal an unexpected function of cell-cycle proteins in controlling apoptosis in normal cell homeostasis.
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Affiliation(s)
- Yoon Jong Choi
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Borja Saez
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA
| | - Lars Anders
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Per Hydbring
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Joanna Stefano
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Nickolas A Bacon
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Colleen Cook
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA
| | - Ilona Kalaszczynska
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Sabina Signoretti
- Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - David T Scadden
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA
| | - Piotr Sicinski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.
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11
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Anders L, Guenther MG, Qi J, Fan ZP, Marineau JJ, Rahl PB, Lovén J, Sigova AA, Smith WB, Lee TI, Bradner JE, Young RA. Genome-wide localization of small molecules. Nat Biotechnol 2013; 32:92-6. [PMID: 24336317 PMCID: PMC4189815 DOI: 10.1038/nbt.2776] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 11/20/2013] [Indexed: 12/28/2022]
Abstract
A vast number of small-molecule ligands, including therapeutic drugs under development and in clinical use, elicit their effects by binding specific proteins associated with the genome. An ability to map the direct interactions of a chemical entity with chromatin genome-wide could provide important insights into chemical perturbation of cellular function. Here we describe a method that couples ligand-affinity capture and massively parallel DNA sequencing (Chem-seq) to identify the sites bound by small chemical molecules throughout the human genome. We show how Chem-seq can be combined with ChIP-seq to gain unique insights into the interaction of drugs with their target proteins throughout the genome of tumor cells. These methods will be broadly useful to enhance understanding of therapeutic action and to characterize the specificity of chemical entities that interact with DNA or genome-associated proteins.
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Affiliation(s)
- Lars Anders
- 1] Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA. [2]
| | - Matthew G Guenther
- 1] Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA. [2]
| | - Jun Qi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Massachusetts, USA
| | - Zi Peng Fan
- 1] Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA. [2] Computational and Systems Biology Program, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Jason J Marineau
- Department of Medical Oncology, Dana-Farber Cancer Institute, Massachusetts, USA
| | - Peter B Rahl
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA
| | - Jakob Lovén
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA
| | - Alla A Sigova
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA
| | - William B Smith
- Department of Medical Oncology, Dana-Farber Cancer Institute, Massachusetts, USA
| | - Tong Ihn Lee
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA
| | - James E Bradner
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Massachusetts, USA. [2] Department of Medicine, Harvard Medical School, Massachusetts, USA
| | - Richard A Young
- 1] Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA. [2] Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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12
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Anders L. PARE0021 Sick, but active - we can do everything you can do. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Anders L, Ke N, Hydbring P, Choi YJ, Widlund HR, Chick JM, Zhai H, Vidal M, Gygi SP, Braun P, Sicinski P. A systematic screen for CDK4/6 substrates links FOXM1 phosphorylation to senescence suppression in cancer cells. Cancer Cell 2011; 20:620-34. [PMID: 22094256 PMCID: PMC3237683 DOI: 10.1016/j.ccr.2011.10.001] [Citation(s) in RCA: 389] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 04/21/2011] [Accepted: 10/02/2011] [Indexed: 12/31/2022]
Abstract
Cyclin D-dependent kinases (CDK4 and CDK6) are positive regulators of cell cycle entry and they are overactive in the majority of human cancers. However, it is currently not completely understood by which cellular mechanisms CDK4/6 promote tumorigenesis, largely due to the limited number of identified substrates. Here we performed a systematic screen for substrates of cyclin D1-CDK4 and cyclin D3-CDK6. We identified the Forkhead Box M1 (FOXM1) transcription factor as a common critical phosphorylation target. CDK4/6 stabilize and activate FOXM1, thereby maintain expression of G1/S phase genes, suppress the levels of reactive oxygen species (ROS), and protect cancer cells from senescence. Melanoma cells, unlike melanocytes, are highly reliant on CDK4/6-mediated senescence suppression, which makes them particularly susceptible to CDK4/6 inhibition.
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Affiliation(s)
- Lars Anders
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
- Correspondence:
| | - Nan Ke
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
| | - Per Hydbring
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
| | - Yoon J. Choi
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
| | - Hans R. Widlund
- Department of Dermatology Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Joel M. Chick
- Department of Cell Biology Harvard Medical School, Boston, MA 02115, USA
| | - Huili Zhai
- Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA
| | - Marc Vidal
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Center for Cancer Systems Biology (CCSB) Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
| | - Stephen P. Gygi
- Department of Cell Biology Harvard Medical School, Boston, MA 02115, USA
| | - Pascal Braun
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Center for Cancer Systems Biology (CCSB) Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
| | - Piotr Sicinski
- Department of Cancer Biology Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Genetics Harvard Medical School, Boston, MA 02115, USA
- Correspondence:
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Anders L, Mertins P, Lammich S, Murgia M, Hartmann D, Saftig P, Haass C, Ullrich A. Furin-, ADAM 10-, and gamma-secretase-mediated cleavage of a receptor tyrosine phosphatase and regulation of beta-catenin's transcriptional activity. Mol Cell Biol 2006; 26:3917-34. [PMID: 16648485 PMCID: PMC1489012 DOI: 10.1128/mcb.26.10.3917-3934.2006] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Several receptor protein tyrosine phosphatases (RPTPs) are cell adhesion molecules involved in homophilic interactions, suggesting that RPTP outside-in signaling is coupled to cell contact formation. However, little is known about the mechanisms by which cell density regulates RPTP function. We show that the MAM family prototype RPTPkappa is cleaved by three proteases: furin, ADAM 10, and gamma-secretase. Cell density promotes ADAM 10-mediated cleavage and shedding of RPTPkappa. This is followed by gamma-secretase-dependent intramembrane proteolysis of the remaining transmembrane part to release the phosphatase intracellular portion (PIC) from the membrane, thereby allowing its translocation to the nucleus. When cells were treated with leptomycin B, a nuclear export inhibitor, PIC accumulated in nuclear bodies. PIC is an active protein tyrosine phosphatase that binds to and dephosphorylates beta-catenin, an RPTPkappa substrate. The expression of RPTPkappa suppresses beta-catenin's transcriptional activity, whereas the expression of PIC increases it. Notably, this increase required the phosphatase activity of PIC. Thus, both isoforms have acquired opposing roles in the regulation of beta-catenin signaling. We also found that RPTPmu, another MAM family member, undergoes gamma-secretase-dependent processing. Our results identify intramembrane proteolysis as a regulatory switch in RPTPkappa signaling and implicate PIC in the activation of beta-catenin-mediated transcription.
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Affiliation(s)
- Lars Anders
- Department of Molecular Biology, Max Planck Institute of Biochemistry, Martinsried, Germany.
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Kress B, Buhl Y, Anders L, Stippich C, Palm F, Bähren W, Sartor K. Quantitative analysis of MRI signal intensity as a tool for evaluating tooth pulp vitality. Dentomaxillofac Radiol 2004; 33:241-4. [PMID: 15533978 DOI: 10.1259/dmfr/33063878] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To assess whether it is possible to measure tooth vitality using magnetic resonance imaging (MRI). METHODS Signal intensity measurements were conducted using T(1) and T(2) sequences at the region of interest in 211 teeth (35 patients). RESULTS Clinical findings showed that 17.3% of the teeth were avital, whereas 82.7% were found to be vital. Neither the T(2) sequence nor the non-contrast-enhanced T(1) sequence showed significant differences between vital and avital teeth. However, the contrast-enhanced sequence and, in particular, a comparison of signal intensities between the non-contrast-enhanced T(1) sequence and the contrast-enhanced sequence showed a significant difference between vital and avital teeth. CONCLUSION Contrast-enhanced MRI enables us to draw conclusions on pulpal perfusion in vivo.
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Affiliation(s)
- B Kress
- Division of Neuroradiology, Department of Neurology, University of Heidelberg, Medical Center, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
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Kress B, Gottschalk A, Anders L, Stippich C, Palm F, Bähren W, Sartor K. High-resolution dental magnetic resonance imaging of inferior alveolar nerve responses to the extraction of third molars. Eur Radiol 2004; 14:1416-20. [PMID: 15007618 DOI: 10.1007/s00330-004-2285-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2003] [Revised: 01/12/2004] [Accepted: 02/02/2004] [Indexed: 11/26/2022]
Abstract
The objective of this study was to assess whether signal changes can be detected in the neurovascular bundle of the mandibular canal after the extraction of a third molar. We retrospectively analyzed MRI scans of 30 test subjects with healthy mandibles and 41 patients who had had a wisdom tooth extracted. Signal intensities were measured at particular sites in the neurovascular bundle, which were defined as regions of interest (ROI) in the sagittal T1-weighted images before and after intravenous administration of a paramagnetic contrast agent. On the basis of the signal intensity increases that were measured after contrast agent administration, we compared the signal increases obtained for the patients who had received surgical treatment with the results obtained for the population of test subjects with unremarkable mandibles ( t-test, P<0.05). Compared with the healthy test subjects, patients who had received surgical treatment showed significantly higher signal intensity increases at two measurement sites, i.e., the second molar and the second premolar ( P<0.05). We found no significant differences when the measurements were performed at the first molar ( P=0.06), the third molar ( P=0.47) and in the area of the ascending mandibular ramus ( P=0.79). Compared with a population of healthy test subjects, patients who had their third molars surgically removed show higher signal intensity increases in the neurovascular bundle after intravenous contrast agent administration. The underlying cause may be the higher blood flow in the arteries and veins and the perineural plexus, which may give evidence of the pathophysiological mechanism of nerve damage in the narrow canal as a result of osteotomy.
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Affiliation(s)
- B Kress
- Department of Neurology, Division of Neuroradiology, University of Heidelberg, Medical Center, 69120 Heidelberg, Germany.
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Gottschalk A, Gerber S, Solbach T, Anders L, Bähren W, Kress B. [Quantitative analysis of contrast enhanced MRI of the inferior alveolar nerve in inflammatory changes of the mandible]. ROFO-FORTSCHR RONTG 2003; 175:1344-8. [PMID: 14556102 DOI: 10.1055/s-2003-42894] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE To evaluate the role of contrast enhanced MRI in quantifying signal changes of the inferior alveolar nerve following inflammatory changes of the mandible. MATERIAL AND METHODS 30 patients with inflammatory changes of the mandible underwent MRI of the face. Both sides of the mandible, the affected as well as the unaffected healthy side were evaluated retrospectively. Regions of interest were placed at 5 defined places on both sides to assess signal intensity before and after intravenous application of paramagnetic contrast agent. The results of the measurements were compared between the healthy and the affected side (t-test, p < 0.05) and correlated with clinical findings (t-test, p < 0.05). RESULTS All patients with hypesthesia of the inferior alveolar nerve in areas of the lips or chin (n = 4) showed a marked increase in signal intensity from 35 % to 83 % distal to the inflammatory process. Patients without sensitivity disorders showed less increase in signal intensity with a maximum of 51 % distal to the inflammatory process. In nearly all patients no contrast enhancement was observed distal to the first molar on the unaffected side. CONCLUSIONS Quantitative analysis of contrast enhanced MRI of the neurovascular bundle is able to show pathologic mandibular lesions. In case of inflammatory changes of the mandible the neurovascular bundle is able to show pathologic mandibular lesions. In case of inflammatory changes of the mandible, the neurovascular bundle shows a significant increase in signal intensity distal to the lesion compared to the unaffected healthy side of the mandible.
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Kress B, Nissen S, Gottschalk A, Anders L, Wentzler C, Solbach T, Palm F, Bähren W, Sartor K. High-resolution MR technique allowing visualization of the course of the inferior alveolar nerve along cystic processes. Eur Radiol 2003; 13:1612-4. [PMID: 12835975 DOI: 10.1007/s00330-003-1837-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2002] [Revised: 11/25/2002] [Accepted: 01/02/2003] [Indexed: 11/29/2022]
Abstract
Magnetic resonance imaging is not established in the preoperative diagnosis of mandibular cystic lesions; therefore, no attempts have been made thus far to evaluate the course of the mandibular neurovascular bundle along the process. However, the radiologist can detect the neurovascular bundle along the cystic lesion by high-resolution MR imaging and convey this information to the maxillofacial surgeon. This reduces the risk of intraoperative damage of the nerve. The examination of the neurovascular bundle can easily be integrated in a tumor MRI protocol of the jaw if the slice orientation is adapted to the course of the mandibular canal.
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Affiliation(s)
- B Kress
- Department of Radiology, Bundeswehrkrankenhaus Ulm, Ulm, Germany.
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Kress B, Gottschalk A, Anders L, Stippich C, Palm F, Bähren W, Sartor K. [Topography of the inferior alveolar nerve in relation to cystic processes of the mandible in dental MRI]. ROFO-FORTSCHR RONTG 2003; 175:67-9. [PMID: 12525983 DOI: 10.1055/s-2003-36604] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE Cystic processes are changing the course of the inferior alveolar nerve in the mandible. This study evaluates the possibility of demonstrating the relationship between space-occupying processes and the course of the neurovascular bundle. MATERIALS AND METHODS Thirteen patients with cystic processes in the mandible (9 keratocystic lesions, 1 eosinophilic granuloma, 1 plasmocytoma, 2 adamantinomas) were examined by MRI (1.5-T magnet, 8-cm surface coil, PD-gradient-echo-sequences in sagittal and coronal orientation, without enhancement) and the results retrospectively evaluated. RESULTS The entire course of the nerve could be delineated in all patients. In six patients with minor cystic processes, the nerve was identified in both sagittal and coronal orientation. In seven patients with major cystic lesions, only parts of the nerve were detected in either image orientation, but the nerve could be visualized in its entire length by evaluating coronal and sagittal images side by side. CONCLUSION It is possible to delineate the inferior alveolar nerve in its entirety along pathologic mandibular lesions. For large cystic lesions, this requires the evaluation of both coronal and sagittal sections of multidirectional MRI.
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Affiliation(s)
- B Kress
- Abteilung Neuroradiologie, Neurologische Klinik, Universitätsklinik Heidelberg, Germany.
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Saka B, Wree A, Anders L, Gundlach KKH. Experimental and comparative study of the blood supply to the mandibular cortex in Göttingen minipigs and in man. J Craniomaxillofac Surg 2002; 30:219-25. [PMID: 12231202 DOI: 10.1054/jcms.2002.0305] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Since the blood supply to the mandibular cortex is an important factor for bone growth and bone repair, experimental studies on the blood supply in animal models (such as Göttingen minipigs) applicable to man are necessary. Their value depends on the requirement that the patterns of blood supply in the two species are similar. MATERIAL AND METHODS Twelve Göttingen minipig mandibles (24 halves) and four human mandibles (eight halves) were investigated for the blood supply to the mandibular cortex. RESULTS Only minor differences were found in blood supply to the mandibular cortex between the two species. Common to both was: in the cranial part of the mandible (including the condyle), the endosteal blood supply prevailed, whereas the periosteal blood supply predominated in the caudal part of the mandible (the body). Both patterns of blood supply were in balance in the centre section, i.e. angle and ascending ramus of the mandible. CONCLUSION The present study confirms that results obtained from Göttingen minipigs, used as an experimental animal model, are applicable to man: three different types of blood supply are evident in the mandibular cortex in both species.
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Affiliation(s)
- Bassam Saka
- Department of Maxillofacial and Facial Plastic Surgery, Rostock University, Germany.
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Saka B, Wree A, Henkel KO, Anders L, Gundlach KKH. Blood supply of the mandibular cortex: an experimental study in Göttingen minipigs with special reference to the condyle. J Craniomaxillofac Surg 2002; 30:41-5. [PMID: 12064882 DOI: 10.1054/jcms.2001.0257] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Blood supply of the mandible is an important factor that influences bone growth and bone repair. MATERIAL AND METHODS An experimental study was carried out in 24 mandibles of 12 Göttingen minipigs to study the blood supply of the mandibular cortex. RESULTS Endosteal blood supply prevails in the cranial part of the mandible including the condyle, whilst periosteal blood supply predominates in the caudal part of the mandible, the body. The two forms of blood supply are in balance in the ascending ramus and the angle of the mandible. CONCLUSION The mandibular cortex can be divided into three parts, each having different sources of blood supply. The results of this study may be of significance for man and could help to understand some pathological disorders of the mandible.
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Affiliation(s)
- Bassam Saka
- Department of Maxillofacial and Facial Plastic Surgery, Rostock University, Rostock, Germany.
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Anders L, Rindfleisch B. [Technical guidelines for the macrophage migration inhibition test]. Z Med Labortech 1970; 11:313-317. [PMID: 5514085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Anders L. [On the value of cytochemical examination studies in intravital and postmortem blood- and bone marrow smears]. Med Lab (Stuttg) 1967; 20:241-5. [PMID: 5600313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Anders L. [On use of the Giemsa staining technic in the diagnosis of lymph node diseases]. Med Lab (Stuttg) 1967; 20:95-8. [PMID: 4171727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Ferber E, Anders L. Die Trennung der Olefin- und Paraffin-Kohlenwasserstoffgase mittels der Olefin-Kupferchlorid-Verbindungen. Angew Chem Int Ed Engl 1944. [DOI: 10.1002/ange.19440571704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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