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Seibertz F, Rubio T, Springer R, Popp F, Ritter M, Liutkute A, Bartelt L, Stelzer L, Haghighi F, Pietras J, Windel H, Pedrosa NDI, Rapedius M, Doering Y, Solano R, Hindmarsh R, Shi R, Tiburcy M, Bruegmann T, Kutschka I, Streckfuss-Bömeke K, Kensah G, Cyganek L, Zimmermann WH, Voigt N. Atrial fibrillation-associated electrical remodelling in human induced pluripotent stem cell-derived atrial cardiomyocytes: a novel pathway for antiarrhythmic therapy development. Cardiovasc Res 2023; 119:2623-2637. [PMID: 37677054 PMCID: PMC10730244 DOI: 10.1093/cvr/cvad143] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 07/18/2023] [Accepted: 08/03/2023] [Indexed: 09/09/2023] Open
Abstract
AIMS Atrial fibrillation (AF) is associated with tachycardia-induced cellular electrophysiology alterations which promote AF chronification and treatment resistance. Development of novel antiarrhythmic therapies is hampered by the absence of scalable experimental human models that reflect AF-associated electrical remodelling. Therefore, we aimed to assess if AF-associated remodelling of cellular electrophysiology can be simulated in human atrial-like cardiomyocytes derived from induced pluripotent stem cells in the presence of retinoic acid (iPSC-aCM), and atrial-engineered human myocardium (aEHM) under short term (24 h) and chronic (7 days) tachypacing (TP). METHODS AND RESULTS First, 24-h electrical pacing at 3 Hz was used to investigate whether AF-associated remodelling in iPSC-aCM and aEHM would ensue. Compared to controls (24 h, 1 Hz pacing) TP-stimulated iPSC-aCM presented classical hallmarks of AF-associated remodelling: (i) decreased L-type Ca2+ current (ICa,L) and (ii) impaired activation of acetylcholine-activated inward-rectifier K+ current (IK,ACh). This resulted in action potential shortening and an absent response to the M-receptor agonist carbachol in both iPSC-aCM and aEHM subjected to TP. Accordingly, mRNA expression of the channel-subunit Kir3.4 was reduced. Selective IK,ACh blockade with tertiapin reduced basal inward-rectifier K+ current only in iPSC-aCM subjected to TP, thereby unmasking an agonist-independent constitutively active IK,ACh. To allow for long-term TP, we developed iPSC-aCM and aEHM expressing the light-gated ion-channel f-Chrimson. The same hallmarks of AF-associated remodelling were observed after optical-TP. In addition, continuous TP (7 days) led to (i) increased amplitude of inward-rectifier K+ current (IK1), (ii) hyperpolarization of the resting membrane potential, (iii) increased action potential-amplitude and upstroke velocity as well as (iv) reversibly impaired contractile function in aEHM. CONCLUSIONS Classical hallmarks of AF-associated remodelling were mimicked through TP of iPSC-aCM and aEHM. The use of the ultrafast f-Chrimson depolarizing ion channel allowed us to model the time-dependence of AF-associated remodelling in vitro for the first time. The observation of electrical remodelling with associated reversible contractile dysfunction offers a novel platform for human-centric discovery of antiarrhythmic therapies.
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Affiliation(s)
- Fitzwilliam Seibertz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
| | - Tony Rubio
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Robin Springer
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Fiona Popp
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Melanie Ritter
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Aiste Liutkute
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Lena Bartelt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Lea Stelzer
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Fereshteh Haghighi
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Jan Pietras
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Hendrik Windel
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Núria Díaz i Pedrosa
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | | | - Yannic Doering
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Richard Solano
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Robin Hindmarsh
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Germany
| | - Runzhu Shi
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Institute for Cardiovascular Physiology, University Medical Center Göttingen, Göttingen, Germany
| | - Malte Tiburcy
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
| | - Tobias Bruegmann
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
- Institute for Cardiovascular Physiology, University Medical Center Göttingen, Göttingen, Germany
| | - Ingo Kutschka
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Katrin Streckfuss-Bömeke
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Germany
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - George Kensah
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Department of Cardiothoracic and Vascular Surgery, Georg-August-University Göttingen, Göttingen, Germany
| | - Lukas Cyganek
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
- Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Georg-August University Göttingen, Germany
| | - Wolfram H Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Göttingen, Germany
- Campus-Institute Data Science (CIDAS), University of Göttingen, Göttingen, Germany
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
- Cluster of Excellence ‘Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells’ (MBExC), University of Göttingen, Göttingen, Germany
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2
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Nakhaei-Rad S, Haghighi F, Bazgir F, Dahlmann J, Busley AV, Buchholzer M, Kleemann K, Schänzer A, Borchardt A, Hahn A, Kötter S, Schanze D, Anand R, Funk F, Kronenbitter AV, Scheller J, Piekorz RP, Reichert AS, Volleth M, Wolf MJ, Cirstea IC, Gelb BD, Tartaglia M, Schmitt JP, Krüger M, Kutschka I, Cyganek L, Zenker M, Kensah G, Ahmadian MR. Molecular and cellular evidence for the impact of a hypertrophic cardiomyopathy-associated RAF1 variant on the structure and function of contractile machinery in bioartificial cardiac tissues. Commun Biol 2023; 6:657. [PMID: 37344639 DOI: 10.1038/s42003-023-05013-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/02/2023] [Indexed: 06/23/2023] Open
Abstract
Noonan syndrome (NS), the most common among RASopathies, is caused by germline variants in genes encoding components of the RAS-MAPK pathway. Distinct variants, including the recurrent Ser257Leu substitution in RAF1, are associated with severe hypertrophic cardiomyopathy (HCM). Here, we investigated the elusive mechanistic link between NS-associated RAF1S257L and HCM using three-dimensional cardiac bodies and bioartificial cardiac tissues generated from patient-derived induced pluripotent stem cells (iPSCs) harboring the pathogenic RAF1 c.770 C > T missense change. We characterize the molecular, structural, and functional consequences of aberrant RAF1-associated signaling on the cardiac models. Ultrastructural assessment of the sarcomere revealed a shortening of the I-bands along the Z disc area in both iPSC-derived RAF1S257L cardiomyocytes and myocardial tissue biopsies. The aforementioned changes correlated with the isoform shift of titin from a longer (N2BA) to a shorter isoform (N2B) that also affected the active force generation and contractile tensions. The genotype-phenotype correlation was confirmed using cardiomyocyte progeny of an isogenic gene-corrected RAF1S257L-iPSC line and was mainly reversed by MEK inhibition. Collectively, our findings uncovered a direct link between a RASopathy gene variant and the abnormal sarcomere structure resulting in a cardiac dysfunction that remarkably recapitulates the human disease.
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Affiliation(s)
- Saeideh Nakhaei-Rad
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Stem Cell Biology and Regenerative Medicine Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Fereshteh Haghighi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Clinic for Cardiothoracic and Vascular Surgery, University Medical Center Göttingen, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
| | - Farhad Bazgir
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Julia Dahlmann
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
- Institute of Human Genetics, University Hospital, Otto von Guericke-University, Magdeburg, Germany
| | - Alexandra Viktoria Busley
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
- Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells", University of Göttingen, Göttingen, Germany
| | - Marcel Buchholzer
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Karolin Kleemann
- Clinic for Cardiothoracic and Vascular Surgery, University Medical Center Göttingen, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
| | - Anne Schänzer
- Institute of Neuropathology, Justus Liebig University Giessen, Giessen, Germany
| | - Andrea Borchardt
- Institute of Biochemistry and Molecular Biology I, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Andreas Hahn
- Department of Child Neurology, Justus Liebig University Giessen, 35392, Giessen, Germany
| | - Sebastian Kötter
- Institute of Cardiovascular Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Denny Schanze
- Institute of Human Genetics, University Hospital, Otto von Guericke-University, Magdeburg, Germany
| | - Ruchika Anand
- Institute of Biochemistry and Molecular Biology I, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Florian Funk
- Institute of Pharmacology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Annette Vera Kronenbitter
- Institute of Pharmacology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Jürgen Scheller
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Roland P Piekorz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Andreas S Reichert
- Institute of Biochemistry and Molecular Biology I, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Marianne Volleth
- Institute of Human Genetics, University Hospital, Otto von Guericke-University, Magdeburg, Germany
| | - Matthew J Wolf
- Department of Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, 22908, USA
| | - Ion Cristian Cirstea
- Institute of Comparative Molecular Endocrinology, University of Ulm, Helmholtzstrasse 8/1, 89081, Ulm, Germany
| | - Bruce D Gelb
- Mindich Child Health and Development Institute and Departments of Pediatrics and Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Marco Tartaglia
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Joachim P Schmitt
- Institute of Pharmacology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Martina Krüger
- Institute of Cardiovascular Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Ingo Kutschka
- Clinic for Cardiothoracic and Vascular Surgery, University Medical Center Göttingen, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
| | - Lukas Cyganek
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany
- Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen, Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells", University of Göttingen, Göttingen, Germany
| | - Martin Zenker
- Institute of Human Genetics, University Hospital, Otto von Guericke-University, Magdeburg, Germany.
| | - George Kensah
- Clinic for Cardiothoracic and Vascular Surgery, University Medical Center Göttingen, Göttingen, Germany.
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany.
| | - Mohammad R Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
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3
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Blaze J, Navickas A, Phillips HL, Heissel S, Plaza-Jennings A, Miglani S, Asgharian H, Foo M, Katanski CD, Watkins CP, Pennington ZT, Javidfar B, Espeso-Gil S, Rostandy B, Alwaseem H, Hahn CG, Molina H, Cai DJ, Pan T, Yao WD, Goodarzi H, Haghighi F, Akbarian S. Author Correction: Neuronal Nsun2 deficiency produces tRNA epitranscriptomic alterations and proteomic shifts impacting synaptic signaling and behavior. Nat Commun 2021; 12:7263. [PMID: 34880236 PMCID: PMC8654860 DOI: 10.1038/s41467-021-27501-3] [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] [Indexed: 11/09/2022] Open
Affiliation(s)
- J Blaze
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - A Navickas
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - H L Phillips
- Departments of Psychiatry and Behavioral Sciences, Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, USA
| | - S Heissel
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - A Plaza-Jennings
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - S Miglani
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - H Asgharian
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - M Foo
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - C D Katanski
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - C P Watkins
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Z T Pennington
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - B Javidfar
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - S Espeso-Gil
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - B Rostandy
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - H Alwaseem
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - C G Hahn
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - H Molina
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - D J Cai
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - T Pan
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - W D Yao
- Departments of Psychiatry and Behavioral Sciences, Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, USA
| | - H Goodarzi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - F Haghighi
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.,Research and Development Service, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - S Akbarian
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA. .,Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA. .,Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
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4
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Blaze J, Navickas A, Phillips HL, Heissel S, Plaza-Jennings A, Miglani S, Asgharian H, Foo M, Katanski CD, Watkins CP, Pennington ZT, Javidfar B, Espeso-Gil S, Rostandy B, Alwaseem H, Hahn CG, Molina H, Cai DJ, Pan T, Yao WD, Goodarzi H, Haghighi F, Akbarian S. Neuronal Nsun2 deficiency produces tRNA epitranscriptomic alterations and proteomic shifts impacting synaptic signaling and behavior. Nat Commun 2021; 12:4913. [PMID: 34389722 PMCID: PMC8363735 DOI: 10.1038/s41467-021-24969-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [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: 09/03/2020] [Accepted: 07/16/2021] [Indexed: 02/07/2023] Open
Abstract
Epitranscriptomic mechanisms linking tRNA function and the brain proteome to cognition and complex behaviors are not well described. Here, we report bi-directional changes in depression-related behaviors after genetic disruption of neuronal tRNA cytosine methylation, including conditional ablation and transgene-derived overexpression of Nsun2 in the mouse prefrontal cortex (PFC). Neuronal Nsun2-deficiency was associated with a decrease in tRNA m5C levels, resulting in deficits in expression of 70% of tRNAGly isodecoders. Altogether, 1488/5820 proteins changed upon neuronal Nsun2-deficiency, in conjunction with glycine codon-specific defects in translational efficiencies. Loss of Gly-rich proteins critical for glutamatergic neurotransmission was associated with impaired synaptic signaling at PFC pyramidal neurons and defective contextual fear memory. Changes in the neuronal translatome were also associated with a 146% increase in glycine biosynthesis. These findings highlight the methylation sensitivity of glycinergic tRNAs in the adult PFC. Furthermore, they link synaptic plasticity and complex behaviors to epitranscriptomic modifications of cognate tRNAs and the proteomic homeostasis associated with specific amino acids.
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Affiliation(s)
- J Blaze
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - A Navickas
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - H L Phillips
- Departments of Psychiatry and Behavioral Sciences, Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, USA
| | - S Heissel
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - A Plaza-Jennings
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - S Miglani
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - H Asgharian
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - M Foo
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - C D Katanski
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - C P Watkins
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Z T Pennington
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - B Javidfar
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - S Espeso-Gil
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - B Rostandy
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - H Alwaseem
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - C G Hahn
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - H Molina
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - D J Cai
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - T Pan
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - W D Yao
- Departments of Psychiatry and Behavioral Sciences, Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, USA
| | - H Goodarzi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - F Haghighi
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Research and Development Service, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - S Akbarian
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
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5
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Kleemann K, Haghighi F, Pietras J, Habich L, Dahlmann J, Rubio T, Seibertz F, Skvorc D, Nourmohammadi S, Volleth M, Voigt N, Zenker M, Kutschka I, Kensah G. Noonan Syndrome-Associated Hypertrophic Cardiomyopathy Caused by a Mutation in RIT1 Can Be Partially Rescued by Inhibition of RAS/MAPK Signaling Pathway In Vitro. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725644] [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: 10/21/2022]
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6
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Pietras J, Skvorc D, Haghighi F, Seibertz F, Waldmann-Beushausen R, Habich L, Nourmohammadi S, Fietz R, Bähr R, Voigt N, Kutschka I, Kensah G. Generation and Maturation of Human IPSC-Derived Myocardium in a Closed and Automated Bioreactor System. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725703] [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: 10/21/2022]
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7
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Haghighi F, Liutkute A, Kleemann K, Habich L, Pietras J, Skvorc D, Nourmohammadi S, Dahlmann J, Seibertz F, Rubio T, Voigt N, Lebert J, Christoph J, Cyganek L, Kutschka I, Zenker M, Kensah G. Cardiac Electrophysiological Anomalies Associated with A Noonan Syndrome Mutation in RAF1 Can Be Rescued Partially In Vitro by Inhibition of RAS/MAPK Signaling Pathway. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725806] [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: 10/21/2022]
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8
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Taha MS, Haghighi F, Stefanski A, Nakhaei-Rad S, Kazemein Jasemi NS, Al Kabbani MA, Görg B, Fujii M, Lang PA, Häussinger D, Piekorz RP, Stühler K, Ahmadian MR. Novel FMRP interaction networks linked to cellular stress. FEBS J 2020; 288:837-860. [PMID: 32525608 DOI: 10.1111/febs.15443] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 04/09/2020] [Accepted: 06/03/2020] [Indexed: 12/12/2022]
Abstract
Silencing of the fragile X mental retardation 1 (FMR1) gene and consequently lack of synthesis of FMR protein (FMRP) are associated with fragile X syndrome, which is one of the most prevalent inherited intellectual disabilities, with additional roles in increased viral infection, liver disease, and reduced cancer risk. FMRP plays critical roles in chromatin dynamics, RNA binding, mRNA transport, and mRNA translation. However, the underlying molecular mechanisms, including the (sub)cellular FMRP protein networks, remain elusive. Here, we employed affinity pull-down and quantitative LC-MS/MS analyses with FMRP. We identified known and novel candidate FMRP-binding proteins as well as protein complexes. FMRP interacted with 180 proteins, 28 of which interacted with its N terminus. Interaction with the C terminus of FMRP was observed for 102 proteins, and 48 proteins interacted with both termini. This FMRP interactome comprises known FMRP-binding proteins, including the ribosomal proteins FXR1P, NUFIP2, Caprin-1, and numerous novel FMRP candidate interacting proteins that localize to different subcellular compartments, including CARF, LARP1, LEO1, NOG2, G3BP1, NONO, NPM1, SKIP, SND1, SQSTM1, and TRIM28. Our data considerably expand the protein and RNA interaction networks of FMRP, which thereby suggest that, in addition to its known functions, FMRP participates in transcription, RNA metabolism, ribonucleoprotein stress granule formation, translation, DNA damage response, chromatin dynamics, cell cycle regulation, ribosome biogenesis, miRNA biogenesis, and mitochondrial organization. Thus, FMRP seems associated with multiple cellular processes both under normal and cell stress conditions in neuronal as well as non-neuronal cell types, as exemplified by its role in the formation of stress granules.
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Affiliation(s)
- Mohamed S Taha
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany.,Research on Children with Special Needs Department, Medical Research Branch, National Research Centre, Cairo, Egypt
| | - Fereshteh Haghighi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Anja Stefanski
- Molecular Proteomics Laboratory, Heinrich Heine-University, Düsseldorf, Germany
| | - Saeideh Nakhaei-Rad
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Neda S Kazemein Jasemi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Mohamed Aghyad Al Kabbani
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Boris Görg
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of the Heinrich Heine-University, Düsseldorf, Germany
| | - Masahiro Fujii
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Phillip A Lang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine-University, Düsseldorf, Germany
| | - Dieter Häussinger
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty of the Heinrich Heine-University, Düsseldorf, Germany
| | - Roland P Piekorz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory, Heinrich Heine-University, Düsseldorf, Germany
| | - Mohammad R Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
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9
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Fakuade FE, Steckmeister V, Seibertz F, Gronwald J, Kestel S, Menzel J, Pronto JRD, Taha K, Haghighi F, Kensah G, Pearman CM, Wiedmann F, Teske AJ, Schmidt C, Dibb KM, El-Essawi A, Danner BC, Baraki H, Schwappach B, Kutschka I, Mason FE, Voigt N. Altered atrial cytosolic calcium handling contributes to the development of postoperative atrial fibrillation. Cardiovasc Res 2020; 117:1790-1801. [PMID: 32520995 PMCID: PMC8208741 DOI: 10.1093/cvr/cvaa162] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/04/2020] [Accepted: 06/04/2020] [Indexed: 01/14/2023] Open
Abstract
Aims Atrial fibrillation (AF) is a commonly occurring arrhythmia after cardiac surgery (postoperative AF, poAF) and is associated with poorer outcomes. Considering that reduced atrial contractile function is a predictor of poAF and that Ca2+ plays an important role in both excitation–contraction coupling and atrial arrhythmogenesis, this study aims to test whether alterations of intracellular Ca2+ handling contribute to impaired atrial contractility and to the arrhythmogenic substrate predisposing patients to poAF. Methods and results Right atrial appendages were obtained from patients in sinus rhythm undergoing open-heart surgery. Cardiomyocytes were investigated by simultaneous measurement of [Ca2+]i and action potentials (APs, patch-clamp). Patients were followed-up for 6 days to identify those with and without poAF. Speckle-tracking analysis of preoperative echocardiography revealed reduced left atrial contraction strain in poAF patients. At the time of surgery, cellular Ca2+ transients (CaTs) and the sarcoplasmic reticulum (SR) Ca2+ content were smaller in the poAF group. CaT decay was slower in poAF, but the decay of caffeine-induced Ca2+ transients was unaltered, suggesting preserved sodium-calcium exchanger function. In agreement, western blots revealed reduced SERCA2a expression in poAF patients but unaltered phospholamban expression/phosphorylation. Computational modelling indicated that reduced SERCA activity promotes occurrence of CaT and AP alternans. Indeed, alternans of CaT and AP occurred more often and at lower stimulation frequencies in atrial myocytes from poAF patients. Resting membrane potential and AP duration were comparable between both groups at various pacing frequencies (0.25–8 Hz). Conclusions Biochemical, functional, and modelling data implicate reduced SERCA-mediated Ca2+ reuptake into the SR as a major contributor to impaired preoperative atrial contractile function and to the pre-existing arrhythmogenic substrate in patients developing poAF.
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Affiliation(s)
- Funsho E Fakuade
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Vanessa Steckmeister
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Fitzwilliam Seibertz
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Judith Gronwald
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Stefanie Kestel
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Julia Menzel
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Molecular Biology, University Medical Centre, Humboldtallee 23, 37075 Göttingen, Germany
| | - Julius Ryan D Pronto
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Karim Taha
- Department of Cardiology, University Medical Centre, Heidelberglaan 100, 3508 GA Utrecht, The Netherlands.,Netherlands Heart Institute, Holland Heart House, Moreelsepark 1, 3511 EP Utrecht, The Netherlands
| | - Fereshteh Haghighi
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - George Kensah
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - Charles M Pearman
- Unit of Cardiac Physiology, Division of Cardiovascular Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Felix Wiedmann
- Department of Cardiology, University Medical Center Heidelberg, Heidelberg, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Germany
| | - Arco J Teske
- Department of Cardiology, University Medical Centre, Heidelberglaan 100, 3508 GA Utrecht, The Netherlands
| | - Constanze Schmidt
- Department of Cardiology, University Medical Center Heidelberg, Heidelberg, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Germany
| | - Katharine M Dibb
- Unit of Cardiac Physiology, Division of Cardiovascular Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Aschraf El-Essawi
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, Klinikum Braunschweig, Braunschweig, Germany
| | - Bernhard C Danner
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - Hassina Baraki
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - Blanche Schwappach
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Molecular Biology, University Medical Centre, Humboldtallee 23, 37075 Göttingen, Germany
| | - Ingo Kutschka
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany.,Department of Thoracic and Cardiovascular Surgery, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - Fleur E Mason
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Germany
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10
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Fazel Modares N, Polz R, Haghighi F, Lamertz L, Behnke K, Zhuang Y, Kordes C, Häussinger D, Sorg UR, Pfeffer K, Floss DM, Moll JM, Piekorz RP, Ahmadian MR, Lang PA, Scheller J. IL-6 Trans-signaling Controls Liver Regeneration After Partial Hepatectomy. Hepatology 2019; 70:2075-2091. [PMID: 31100194 DOI: 10.1002/hep.30774] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/05/2019] [Indexed: 12/17/2022]
Abstract
Interleukin-6 (IL-6) is critically involved in liver regeneration after partial hepatectomy (PHX). Previous reports suggest that IL-6 trans-signaling through the soluble IL-6/IL-6R complex is involved in this process. However, the long-term contribution of IL-6 trans-signaling for liver regeneration after PHX is unknown. PHX-induced generation of the soluble IL-6R by ADAM (a disintegrin and metallo) proteases enables IL-6 trans-signaling, in which IL-6 forms an agonistic complex with the soluble IL-6 receptor (sIL-6R) to activate all cells expressing the signal-transducing receptor chain glycoprotein 130 (gp130). In contrast, without activation of ADAM proteases, IL-6 in complex with membrane-bound IL-6R and gp130 activates classic signaling. Here, we describe the generation of IL-6 trans-signaling mice, which exhibit boosted IL-6 trans-signaling and abrogated classic signaling by genetic conversion of all membrane-bound IL-6R into sIL-6R proteins phenocopying hyperactivation of ADAM-mediated shedding of IL-6R as single substrate. Importantly, although IL-6R deficient mice were strongly affected by PHX, survival and regeneration of IL-6 trans-signaling mice was indistinguishable from control mice, demonstrating that IL-6 trans-signaling fully compensates for disabled classic signaling in liver regeneration after PHX. Moreover, we monitored the long-term consequences of global IL-6 signaling inhibition versus IL-6 trans-signaling selective blockade after PHX by IL-6 monoclonal antibodies and soluble glycoprotein 130 as fragment crystallizable fusion, respectively. Both global IL-6 blockade and selective inhibition of IL-6 trans-signaling results in a strong decrease of overall survival after PHX, accompanied by decreased signal transducer and activator of transcription 3 phosphorylation and proliferation of hepatocytes. Mechanistically, IL-6 trans-signaling induces hepatocyte growth factor production by hepatic stellate cells. Conclusion: IL-6 trans-signaling, but not classic signaling, controls liver regeneration following PHX.
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Affiliation(s)
- Nastaran Fazel Modares
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Robin Polz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Fereshteh Haghighi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Larissa Lamertz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Kristina Behnke
- Institute of Molecular Medicine II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Yuan Zhuang
- Institute of Molecular Medicine II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Claus Kordes
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Dieter Häussinger
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Ursula R Sorg
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Klaus Pfeffer
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Doreen M Floss
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Jens M Moll
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Roland P Piekorz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - M Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Philipp A Lang
- Institute of Molecular Medicine II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Jürgen Scheller
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
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11
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Haghighi F, Dahlmann J, Nakhaei-Rad S, Lang A, Kutschka I, Zenker M, Kensah G, Piekorz RP, Ahmadian MR. bFGF-mediated pluripotency maintenance in human induced pluripotent stem cells is associated with NRAS-MAPK signaling. Cell Commun Signal 2018; 16:96. [PMID: 30518391 PMCID: PMC6282345 DOI: 10.1186/s12964-018-0307-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 11/21/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Human pluripotent stem cells (PSCs) open new windows for basic research and regenerative medicine due to their remarkable properties, i.e. their ability to self-renew indefinitely and being pluripotent. There are different, conflicting data related to the role of basic fibroblast growth factor (bFGF) in intracellular signal transduction and the regulation of pluripotency of PSCs. Here, we investigated the effect of bFGF and its downstream pathways in pluripotent vs. differentiated human induced (hi) PSCs. METHODS bFGF downstream signaling pathways were investigated in long-term culture of hiPSCs from pluripotent to differentiated state (withdrawing bFGF) using immunoblotting, immunocytochemistry and qPCR. Subcellular distribution of signaling components were investigated by simple fractionation and immunoblotting upon bFGF stimulation. Finally, RAS activity and RAS isoforms were studied using RAS assays both after short- and long-term culture in response to bFGF stimulation. RESULTS Our results revealed that hiPSCs were differentiated into the ectoderm lineage upon withdrawing bFGF as an essential pluripotency mediator. Pluripotency markers OCT4, SOX2 and NANOG were downregulated, following a drastic decrease in MAPK pathway activity levels. Notably, a remarkable increase in phosphorylation levels of p38 and JAK/STAT3 was observed in differentiated hiPSCs, while the PI3K/AKT and JNK pathways remained active during differentiation. Our data further indicate that among the RAS paralogs, NRAS predominantly activates the MAPK pathway in hiPSCs. CONCLUSION Collectively, the MAPK pathway appears to be the prime signaling pathway downstream of bFGF for maintaining pluripotency in hiPSCs and among the MAPK pathways, the activity of NRAS-RAF-MEK-ERK is decreased during differentiation, whereas p38 is activated and JNK remains constant.
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Affiliation(s)
- Fereshteh Haghighi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Julia Dahlmann
- Department of Thoracic and Cardiovascular Surgery, University of Göttingen, Göttingen, Germany.,Department of Cardiothoracic Surgery, University Clinic, Otto von Guericke-University, Magdeburg, Germany
| | - Saeideh Nakhaei-Rad
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Alexander Lang
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany.,Present address: Department of Urology, Medical Faculty of Heinrich Heine University, Düsseldorf, Germany
| | - Ingo Kutschka
- Department of Cardiothoracic Surgery, University Clinic, Otto von Guericke-University, Magdeburg, Germany
| | - Martin Zenker
- Institute of Human Genetics, Otto von Guericke-University, Magdeburg, Germany
| | - George Kensah
- Department of Thoracic and Cardiovascular Surgery, University of Göttingen, Göttingen, Germany.,Department of Cardiothoracic Surgery, University Clinic, Otto von Guericke-University, Magdeburg, Germany
| | - Roland P Piekorz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany
| | - Mohammad Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty of the Heinrich Heine University, Düsseldorf, Germany.
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12
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Nakhaei-Rad S, Haghighi F, Nouri P, Rezaei Adariani S, Lissy J, Kazemein Jasemi NS, Dvorsky R, Ahmadian MR. Structural fingerprints, interactions, and signaling networks of RAS family proteins beyond RAS isoforms. Crit Rev Biochem Mol Biol 2018; 53:130-156. [PMID: 29457927 DOI: 10.1080/10409238.2018.1431605] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Saeideh Nakhaei-Rad
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Fereshteh Haghighi
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Parivash Nouri
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Soheila Rezaei Adariani
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Jana Lissy
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Neda S Kazemein Jasemi
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Radovan Dvorsky
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
| | - Mohammad Reza Ahmadian
- a Institute of Biochemistry and Molecular Biology II, Medical Faculty , Heinrich-Heine University , Düsseldorf , Germany
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13
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Falahati-Pour SK, Lotfi AS, Ahmadian G, Baghizadeh A, Behroozi R, Haghighi F. High-level extracellular secretion of organophosphorous hydrolase ofFlavobacteriumsp. inEscherichia coliBL21(DE3)pLysS. Biotechnol Appl Biochem 2016; 63:870-876. [DOI: 10.1002/bab.1438] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 08/18/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Soudeh Khanamani Falahati-Pour
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
- Department of Biotechnology; Graduate University of Advanced Technology; Kerman Iran
| | - Abbas Sahebghadam Lotfi
- Department of Clinical Biochemistry; Faculty of Medical Sciences, Tarbiat Modares University; Tehran Iran
| | - Gholamreza Ahmadian
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Amin Baghizadeh
- Department of Biotechnology; Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology; Kerman Iran
| | - Reza Behroozi
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Fereshteh Haghighi
- Department of Biology; Faculty of Science, Ferdowsi University of Mashhad; Mashhad Iran
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14
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Abstract
In recent years, the need for measurement and detection of samples in situ or with very small volume and low concentration (low and sub-parts per billion) is a cause for miniaturizing systems via microelectromechanical system (MEMS) technology. Gas chromatography (GC) is a common technique that is widely used for separating and measuring semi-volatile and volatile compounds. Conventional GCs are bulky and cannot be used for in situ analysis, hence in the past decades many studies have been reported with the aim of designing and developing chip-based GC. The focus of this review is to follow and investigate the development and the achievements in the field of chip-based GC and its components from the beginning up to the present.
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Affiliation(s)
- F Haghighi
- Chromatographic and Separation Laboratory, Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Vanak, Tehran, Iran.
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15
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Moghtaderi A, Tamadon GH, Haghighi F. 25-hydroxyvitamin D3 Concentration in Serum and Cerebrospinal Fluid of Patients with Remitting-relapse Multiple Sclerosis. Prague Med Rep 2014; 114:162-71. [DOI: 10.14712/23362936.2014.18] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
There is epidemiological, geographical and immunological evidence suggesting that low environmental supplies of vitamin D3 may act as a risk factor for developing multiple sclerosis (MS), possibly due to dysfunction in the immunomodulatory properties of 25-hydroxyvitamin D3 (25-OH-D3) in the brain. The objective of this study is to measure the serum and cerebrospinal fluid (CSF) concentrations of 25-OH-D3 in MS patients during their relapsing phase. 52 patients with remitting-relapse and 58 patients with other non-inflammatory diseases of central and peripheral nervous system were entered into the study. Patients in both groups were admitted for the first time to do diagnostic procedures and they were not on any other treatment for neurological disorders. The means and medians for serum levels of 25-OH-D3 in MS patients and control group were 10.64 ± 9.2 ng/ml (median: 9.6 ng/ml) and 13.23 ± 17.56 ng/ml (median: 11.90 ng/ml), respectively (p=0.328). CSF concentrations for the same values were 2.02 ± 1.94 ng/ml (median: 0.23 ng/ml) and 3.28 ± 2.96 (median: 0.29 ng/ml), respectively (p=0.242). The differences between calculated numbers of serum/CSF ratios were not statistically significant too. The serum and CSF concentrations of 25-OH-D3 in MS group were lower than the control counterpart without any statistical difference and the authors did not find any influence of serum 25-OH-D3 concentration on the CSF concentration based on the non-significant statistical difference between the serum/CSF ratios in two study groups of MS patients and control cases.
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Haghighitalab A, Matin MM, Bahrami AR, Iranshahi M, Saeinasab M, Haghighi F. In vitro investigation of anticancer, cell-cycle-inhibitory, and apoptosis-inducing effects of diversin, a natural prenylated coumarin, on bladder carcinoma cells. ACTA ACUST UNITED AC 2014; 69:99-109. [PMID: 24873030 DOI: 10.5560/znc.2013-0006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Chemotherapy is one of the main strategies for reducing the rate of cancer progression or, in some cases, curing the tumour. Since a great number of chemotherapeutic agents are cytotoxic compounds, i. e. similarly affect normal and neoplastic cells, application of antitumour drugs is preferred in cancer management and therapy. In this study, the cytotoxicity of diversin was evaluated in 5637 cells, a transitional cell carcinoma (TCC) subline (bladder carcinoma), and normal human fibroblast cells using the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. Chromatin condensation and DNA damage induced by diversin were also determined by means of 4',6-diamidino-2-phenylindole (DAPI) staining and the comet assay, respectively. In addition, the mechanism of action of diversin was studied in more detail by the caspase 3 colourimetric assay and flow cytometry-based cell-cycle analyses (PI staining). Our results revealed that diversin has considerable cytotoxic effects in 5637 cells, but not on HFF3 (human foreskin fibroblast) and HDF1 (human dermal fibroblast) cells. Further studies showed that diversin exerts its cytotoxicity via induction of chromatin condensation, DNA damage, and activation of caspase 3 in 5637 cells. In addition, flow cytometric analyses revealed that 5637 cells are mostly arrested at the G2 phase of the cell cycle in the presence of diversin.
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Haghighi F, Matin MM, Bahrami AR, Iranshahi M, Rassouli FB, Haghighitalab A. The cytotoxic activities of 7-isopentenyloxycoumarin on 5637 cells via induction of apoptosis and cell cycle arrest in G2/M stage. ACTA ACUST UNITED AC 2014; 22:3. [PMID: 24393601 PMCID: PMC3898598 DOI: 10.1186/2008-2231-22-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 09/28/2013] [Indexed: 11/24/2022]
Abstract
Background Bladder cancer is the second common malignancy of genitourinary tract, and transitional cell carcinomas (TCCs) account for 90% of all bladder cancers. Due to acquired resistance of TCC cells to a wide range of chemotherapeutic agents, there is always a need for search on new compounds for treatment of these cancers. Coumarins represent a group of natural compounds, which some of them have exerted valuable anti-tumor activities. The current study was designed to evaluate anti-tumor properties and mechanism of action of 7-isopentenyloxycoumarin, a prenyloxycoumarin, on 5637 cells (a TCC cell line). Results MTT results revealed that the cytotoxic effects of 7-isopentenyloxycoumarin on 5637 cancerous cells were more prominent in comparison to HDF-1 normal cells. This coumarin increased the amount of chromatin condensation and DNA damage in 5637 cells by 58 and 33%, respectively. The results also indicated that it can induce apoptosis most probably via activation of caspase-3 in these cells. Moreover, propidium iodide staining revealed that 7-isopentenyloxycoumarin induced cell cycle arrest at G2/M stage, after 24 h of treatment. Conclusion Our results indicated that 7-isopentenyloxycoumarin had selective toxic effects on this bladder cancer cell line and promoted its effects by apoptosis induction and cell cycle arrest. This coumarin can be considered for further studies to reveal its exact mechanism of action and also its anti-cancer effects in vivo.
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Affiliation(s)
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
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18
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Haghighitalab A, Matin MM, Bahrami AR, Iranshahi M, Haghighi F, Porsa H. Enhancement of cisplatin cytotoxicity in combination with herniarin in vitro. Drug Chem Toxicol 2013; 37:156-62. [PMID: 24116377 DOI: 10.3109/01480545.2013.834354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Combinatorial chemotherapy is a valuable route, which can be conducted by different approaches. Use of cisplatin has been approved by the U.S. Food and Drug Administration for different kinds of cancers including bladder cancer. Herniarin is a member of simple coumarins, which are a group of common secondary metabolites in plants. In this study, the enhancing effects of herniarin on cisplatin cytotoxicity were investigated. Cytotoxicity of herniarin on transitional cell carcinoma (TCC) cells was first investigated in comparison with umbelliferone, the parent compound for a large number of coumarins including herniarin, by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. In order to test the effects of herniarin on cisplatin cytotoxicity, TCC cells were also treated with various combining concentrations of herniarin and cisplatin. In these experiments same amounts of dimethyl sulfoxide were used as controls. After 24, 48 and 72 h of treatments, the effects of herniarin on cisplatin cytotoxicity were evaluated by MTT assay. The level of chromatin condensation which represents the apoptotic morphology was also investigated by 4',6-diamidino-2-phenylindole (DAPI) staining. Results indicated that unlike umbelliferone, its methoxy analog, herniarin, had no significant cytotoxicity on TCC cells. On the other hand, the combination of 80 µg/mL herniarin with 5 µg/mL cisplatin, significantly enhanced the cytotoxicity of cisplatin. Furtheremore, DAPI staining revealed that combining concentrations of herniarin and cisplatin resulted in increased chromatin condensation in comparison with controls. This study is another confirmation for bioactivity of herniarin and shows that it might be a good candidate for further experiments investigating its mechanism of action.
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Affiliation(s)
- Azadeh Haghighitalab
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad , Mashhad , Iran
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19
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Hasanabad MH, Bahador A, Mohammadzadeh M, Haghighi F. P3.272 Prevalence of Chlamydia Trachomatis, Neisseria Gonorrhoeae and Ureaplasma Urealyticum in Pregnant Women of Sabzevar - Iran. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0728] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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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20
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Haghighi F, Mohammadi SR, Mohammadi P, Eskandari M, Hosseinkhani S. The evaluation of Candida albicans biofilms formation on silicone catheter, PVC and glass coated with titanium dioxide nanoparticles by XTT method and ATPase assay. ACTA ACUST UNITED AC 2013; 113:707-11. [PMID: 23173628 DOI: 10.4149/bll_2012_160] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Lots of Candida albicans infections involve in biofilm formation on medical devices. This kind of biofilm can impede antifungal therapy and complicates the treatment of infectious diseases particularly in field of chronic diseases associated with implanted devices. This study has investigated the influence of treating silicone catheter, PVC and glass coated with Titanium dioxide (TiO2) nanoparticles on attachment of C. albicans. In this study TiO2 nanoparticles were synthesized from precursor TiCl4 and characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) which showed TiO2 nanoparticles are 70-100 nm in size. In the simplest model of biofilms formation, C. albicans isolates (ATCC10231) and (ATCC 76615) were grown on the surface of small disks of catheter, PVC and glass in a flat-bottomed 12-well plates and evaluated biofilm formation using ATP bioluminescence and tetrazolium salt (XTT) reduction assays. In addition, morphology of C. albicans biofilms after 48 h incubation was observed by SEM. Results indicated that there is a statistical difference between mean of coated samples especially catheter and glass before and after TiO2 nanoparticles coating (p<0.05). In SEM analysis, C. albicans biofilm was more aggregated on the surface of glass and catheter than PVC and control groups and after treatment by these nanoparticles, catheter and glass both showed most significant decrease of C. albicans attachment in comparison to the control groups (Fig. 4, Ref. 23).
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Affiliation(s)
- F Haghighi
- Department of Medical Mycology, Tarbiat Modares University of Medical Sciences, Tehran, Iran
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21
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Kinnally EL, Capitanio JP, Leibel R, Deng L, LeDuc C, Haghighi F, Mann JJ. Epigenetic regulation of serotonin transporter expression and behavior in infant rhesus macaques. Genes Brain Behav 2010; 9:575-82. [PMID: 20398062 DOI: 10.1111/j.1601-183x.2010.00588.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Epigenetic mechanisms may moderate genetic and environmental risk (GxE) for mood disorders. We used an experimental rhesus macaque model of early life stress to test whether epigenetic regulation of serotonin transporter (5-HTT) may contribute to GxE interactions that influence behavior and emotion. We hypothesized that peripheral blood mononuclear cell (PBMC) DNA methylation within an 800 bp cytosine-phosphate-guanosine (CpG) island that overlaps with the 5-HTT transcription initiation start site, a hypothesized model of the same genomic region in brain tissue, would mediate or moderate the effects of early life stress and a functional 5-HTT promoter polymorphism (rh5-HTTLPR) on two outcomes: PBMC 5-HTT expression and behavioral stress reactivity. Eighty-seven infant rhesus macaques (3-4 months of age) were either mother reared in large social groups (n = 70) or nursery reared (n = 17). During a maternal/social separation, infants' blood was sampled and behavioral stress reactivity recorded. PBMC DNA and RNA samples were used to determine rh5-HTTLPR genotype, 5-HTT mRNA expression using quantitative reverse transcription polymerase chain reaction (qRT-PCR) and 5-HTT CpG methylation status using sodium bisulfite pyrosequencing. Consistent with human data, carriers of the low-expressing rh5-HTTLPR alleles exhibited higher mean 5-HTT CpG methylation, which was associated with lower PBMC 5-HTT expression. Higher 5-HTT CpG methylation, but not rh5-HTTLPR genotype, exacerbated the effects of early life stress on behavioral stress reactivity in infants. 5-HTT CpG methylation may be an important regulator of 5-HTT expression early in development and may contribute to the risk for mood disorders observed in 'high-risk'5-HTTLPR carriers.
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Affiliation(s)
- E L Kinnally
- Department of Psychiatry, Columbia University, New York, NY 10032, USA.
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22
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Ulusakarya A, Haghighi F, Juin F, Marconi A, Liu XH, Machover D, Uzan G. High number of peripheral blood circulating endothelial progenitor cells (EPCs) in a patient with erythropoietin (EPO) producing renal carcinoma (RC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.9707] [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: 11/20/2022] Open
Affiliation(s)
- A. Ulusakarya
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
| | - F. Haghighi
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
| | - F. Juin
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
| | - A. Marconi
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
| | - X.-H. Liu
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
| | - D. Machover
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
| | - G. Uzan
- Paul Brousse Hosp, Villejuif, France; Inserm Unit 602, Villejuif, France
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23
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Abstract
Segregation analysis assumes that the observed family-size distribution (FSD), i.e., distribution of number of offspring among nuclear families, is independent of the segregation ratio p. However, for certain serious diseases with early onset and diagnosis (e.g., autism), parents may change their original desired family size, based on having one or more affected children, thus violating that assumption. Here we investigate "stoppage," the situation in which such parents have fewer children than originally planned. Following Brookfield et al. [J Med Genet 25:181-185, 1988], we define a stoppage probability d that after the birth of an affected child, parents will stop having children and thus not reach their original desired family size. We first derive the full correct likelihood for a simple segregation analysis as a function of p, d, and the ascertainment probability pi. We show that p can be estimated from this likelihood if the FSD is known. Then, we show that under "random" ascertainment, the presence of stoppage does not bias estimates of p. However, for other ascertainment schemes, we show that is not the case. We use a simulation study to assess the magnitude of bias, and we demonstrate that ignoring the effect of stoppage can seriously bias the estimates of p when the FSD is ignored. In conclusion, stoppage, a realistic scenario for some complex diseases, can represent a serious and potentially intractable problem for segregation analysis.
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Affiliation(s)
- S L Slager
- Department of Psychiatry, College of Physicians and Surgeons at Columbia University and the New York State Psychiatric Institute, New York, NY, USA.
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24
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Hamilton SP, Slager SL, Heiman GA, Haghighi F, Klein DF, Hodge SE, Weissman MM, Fyer AJ, Knowles JA. No genetic linkage or association between a functional promoter polymorphism in the monoamine oxidase-A gene and panic disorder. Mol Psychiatry 2000; 5:465-6. [PMID: 11032378 DOI: 10.1038/sj.mp.4000772] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Abstract
Our aim was to analyze the GAW10 bipolar data on chromosome 18, using three well-known affected-sib-pair methods. Analyses were carried out on both individual and combined data sets. In these analyses we defined the affected phenotype to include only individuals with diagnosis of bipolar I. We observed suggestive evidence for linkage to a few markers on the peri-centromeric region of chromosome 18. In the COLUMBIA data set, D18S45 showed statistically significant results (p-value < or = 0.001). Also for the combined analyses, D18S53 gave a consistently significant linkage signal.
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Affiliation(s)
- F Haghighi
- Department of Genetics and Development, Columbia University, New York, USA
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26
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Hamilton SP, Haghighi F, Heiman GA, Klein DF, Hodge SE, Fyer AJ, Weissman MM, Knowles JA. Investigation of dopamine receptor (DRD4) and dopamine transporter (DAT) polymorphisms for genetic linkage or association to panic disorder. Am J Med Genet 2000; 96:324-30. [PMID: 10898909 DOI: 10.1002/1096-8628(20000612)96:3<324::aid-ajmg18>3.0.co;2-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Clinical and animal studies suggest a role for the neurotransmitter dopamine in anxiety states. In humans, one such condition is panic disorder, which is typified by recurrent panic attacks accompanied by anticipatory anxiety. Family, segregation, and twin studies imply a genetic component to the pathophysiology of panic disorder. In this study, we examined the genes for the D4 dopamine receptor (DRD4) and the dopamine transporter (DAT) using three common sequence polymorphisms. Two of these polymorphisms were in DRD4, a 12 base-pair insertion/deletion in exon 1 and a 48 base-pair repeat in exon 3, and the third was a 40 base-pair repeat in the 3' untranslated region of DAT. We employed a family-based design, using 622 individuals in 70 families, as well as 82 haplotype relative risk "trios". Subjects were genotyped at the polymorphic loci, and the data were analyzed for genetic association and linkage. There were no significant differences in allele frequencies or occurrence of genotypes within the triads for any of the three polymorphisms. No significant linkage between the DRD4 or DAT polymorphisms and panic disorder was observed in the multiplex families, using a variety of simulations for dominant and recessive models of inheritance. However, LOD scores of approximately 1.1 and 1.05 were observed for the DAT and DRD4 exon 1 loci, respectively. The results reported here provide little support for the role of these polymorphisms in panic disorder.
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Affiliation(s)
- S P Hamilton
- Department of Psychiatry, College of Physicians and Surgeons at Columbia University and the New York State Psychiatric Institute, New York, NY 10032, USA
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27
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Deng Z, Haghighi F, Helleby L, Vanterpool K, Horn EM, Barst RJ, Hodge SE, Morse JH, Knowles JA. Fine mapping of PPH1, a gene for familial primary pulmonary hypertension, to a 3-cM region on chromosome 2q33. Am J Respir Crit Care Med 2000; 161:1055-9. [PMID: 10712363 DOI: 10.1164/ajrccm.161.3.9906051] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.6] [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: 11/16/2022] Open
Abstract
Familial primary pulmonary hypertension (PPH) is a rare autosomal dominant disease characterized by distinctive changes in pulmonary arterioles that lead to increased pulmonary artery pressures, right ventricular failure, and death. Our previous studies had mapped the disease locus, PPH1, to a 27-cM region on chromosome 2q31-q33, with a maximum multipoint logarithm of the odds favoring genetic linkage score of 3.87 with markers D2S350 and D2S364. To narrow the minimal genetic region for PPH, we physically mapped 33 highly polymorphic microsatellite markers and used them to genotype 44 affected individuals and 133 unaffected individuals from 17 families with PPH. We observed recombination events that substantially reduced the interval for PPH1 to the approximately 3-cM region that separates D2S311 and D2S1384. This entire region lies within chromosome 2q33. A maximum two-point lod score of 7.23 at a recombination fraction of zero was obtained for marker D2S307. A maximum multipoint lod score of 7.41 was observed close to marker D2S1367. The current minimal genetic region contains multiple candidate genes for PPH, including a locus thought to play a role in lung cancer.
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Affiliation(s)
- Z Deng
- Department of Genetics and Development, Columbia Genome Center, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
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28
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Abstract
This paper reports evidence for a possible "chromosome 13 syndrome," which includes panic disorder, kidney or bladder problems, serious headaches, thyroid problems (usually hypothyroid), and/or mitral valve prolapse (MVP). In the course of a genetic linkage study of panic disorder, we noted these medical conditions in individual family members. (We were blind to family relationships and marker data.) We hypothesized that there may exist a subgroup of panic families with these medical conditions, which for simplicity we called it the "syndrome." Subsequently we reclassified the families as with or without the "syndrome" and extended the phenotype for analysis to include the above medical conditions. All these classifications were also done before the analysis and blind to marker data. We then examined our linkage results, looking for significant differences between families with and without the "syndrome" (using several definitions of the "syndrome")-i.e., testing for genetic heterogeneity. When the families with and without bladder/kidney problems were separated from each other, one marker-D13S779 (ATA26D07)-yielded a lod score of over 3 in the families with bladder/kidney problems. This lod score went up to 4.2 in these families when we diagnosed any individual with any one of the "syndrome" conditions as affected. These results were statistically significant even after applying an extremely overconservative Bonferroni correction for multiple tests. We present these results in order to alert other investigators working on panic disorder, for replication. If replicated, one may hypothesize that a candidate gene for the syndrome should be expressed in CNS, kidney, gut, thyroid, etc. We also noted that two independent studies report recent linkage findings between schizophrenia and the same region on chromosome 13. No connection between schizophrenia and panic disorder has ever been reported. Finally, we suggest that genetic studies of psychiatric disorders might prove more fruitful if phenotypes were expanded to include possible manifestations of the disorder in medical (non-mental) symptoms. Am. J. Med. Genet.(Neuropsychiatr. Genet.) 96:24-35, 2000.
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Affiliation(s)
- M M Weissman
- Department of Psychiatry, College of Physicians and Surgeons at Columbia University, New York, New York, USA.
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29
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Abstract
Artificial neural networks were applied to the alcoholism data to reveal nonlinear relationships between intermediate phenotypes, marker identity-by-descent sharing, and the affection status. A variable number of hidden units were considered to achieve a balance between the minimal mean-squared error and over-fitting of the data. The predictability of the affection status based on intermediate phenotype information (event-related potential 300, monoamine oxidase, and gender) was 65% to 75%, and sensitivity/specificity ranged around 50% to 80%. The IBD approach succeeded in identifying the same marker as previous studies, but also found additional peaks.
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Affiliation(s)
- W Li
- Laboratory of Statistical Genetics, Rockefeller University, New York, NY 10021, USA
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30
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Haghighi F, Fyer AJ, Weissman MM, Knowles JA, Hodge SE. Parent-of-origin effect in panic disorder. Am J Med Genet 1999; 88:131-5. [PMID: 10206231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Parent-of-origin effect was examined in a series of 64 pedigrees with panic disorder (PD) under both the narrow and broad diagnostic models. The narrow diagnostic model defined the affected phenotype to include only the "definite" and "probable" forms of PD, whereas the broad diagnostic model included the entire PD symptomatology. The pattern of maternal vs. paternal transmission of disease was analyzed through a number of comparisons. These comparisons were performed first on all pedigrees and then on a subset of "pure" pedigrees including only strictly maternal transmission or strictly paternal transmission of PD. There were no significant differences in the proportion of offspring born to transmitting mothers vs. transmitting fathers under either diagnostic model or pedigree set. When the difference in the sex ratio among affected offspring from both transmission types was considered, only the "pure" pedigree sample under the broad diagnostic model yielded nominally (i.e., not corrected for multiple tests) significant results (P < .05). Also, the comparisons of cumulative lifetime risk for PD between offspring of transmitting mothers and fathers gave some nominally significant results; when affected and unaffected offspring were considered, significant results were observed under the narrow and broad diagnostic models, P < .0005 and P < .05, respectively. These findings must be considered provisional until confirmed by further study.
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Affiliation(s)
- F Haghighi
- Department of Genetics and Development, Columbia University College of Physicians and Surgeons, New York, New York, USA
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31
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Hamilton SP, Heiman GA, Haghighi F, Mick S, Klein DF, Hodge SE, Weissman MM, Fyer AJ, Knowles JA. Lack of genetic linkage or association between a functional serotonin transporter polymorphism and panic disorder. Psychiatr Genet 1999; 9:1-6. [PMID: 10335545 DOI: 10.1097/00041444-199903000-00001] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.2] [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: 11/25/2022]
Abstract
Given the efficacy of medications that interact with the serotonin transporter (5-HTT) in the treatment of panic disorder, we have used a family-based design to test for genetic association and linkage between panic disorder and a functional polymorphism in the promoter of the gene for 5-HTT. In this study, 340 individuals in 45 families, as well as 74 haplotype relative risk 'trios' were genotyped at the polymorphic locus, which consists of a 44 base pair deletion/insertion. There were no significant differences in allele frequencies or occurrence of genotypes within the triads. No linkage between the 5-HTT polymorphism and panic disorder was observed in the multiplex families, using a variety of simulations for dominant and recessive models of inheritance. Recent reports suggest an association between the 5-HTT polymorphism and anxiety-related traits, as measured with personality assessment. The results reported here provide evidence that the genetic basis of panic disorder may be distinct from anxiety-related traits assessed by personality inventories in normal populations.
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Affiliation(s)
- S P Hamilton
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, USA
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32
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Knowles JA, Fyer AJ, Vieland VJ, Weissman MM, Hodge SE, Heiman GA, Haghighi F, de Jesus GM, Rassnick H, Preud'homme-Rivelli X, Austin T, Cunjak J, Mick S, Fine LD, Woodley KA, Das K, Maier W, Adams PB, Freimer NB, Klein DF, Gilliam TC. Results of a genome-wide genetic screen for panic disorder. Am J Med Genet 1998; 81:139-47. [PMID: 9613853 DOI: 10.1002/(sici)1096-8628(19980328)81:2<139::aid-ajmg4>3.0.co;2-r] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Panic disorder is characterized by spontaneous and recurrent panic attacks, often accompanied by agoraphobia. The results of family, twin, and segregation studies suggest a genetic role in the etiology of the illness. We have genotyped up to 23 families that have a high density of panic disorder with 540 microsatellite DNA markers in a first-pass genomic screen. The thirteen best families (ELOD > 6.0 under the dominant genetic model) have been genotyped with an ordered set of markers encompassing all the autosomes, at an average marker density of 11 cM. Over 110,000 genotypes have been generated on the whole set of families, and the data have been analyzed under both a dominant and a recessive model, and with the program SIBPAIR. No lod scores exceed 2.0 for either parametric model. Two markers give lod scores over 1.0 under the dominant model (chromosomes 1p and 20p), and four do under the recessive model (7p, 17p, 20q, and X/Y). One of these (20p) may be particularly promising. Analysis with SIBPAIR yielded P values equivalent to a lod score of 1.0 or greater (i.e., P < .016, one-sided, uncorrected for multiple tests) for 11 marker loci (2, 7p, 8p, 8q, 9p, 11q, 12q, 16p, 20p and 20q).
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Affiliation(s)
- J A Knowles
- Department of Psychiatry, College of Physicians and Surgeons at Columbia University and New York State Psychiatric Institute, New York 10032, USA.
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33
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Haghighi F, Ott J. Estimating recessive disease allele frequency based on genetic maps. Eur J Hum Genet 1997; 5:203-5. [PMID: 9359040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
For a recessive disease whose gene has been localized on the human gene map, a new method is described for estimating the population frequency of the disease allele. The method focuses on affected individuals whose parents are first cousins, where parents and grandparents are genotyped for highly polymorphic markers at the disease gene. The primary statistic is the proportion of such probands who are autozygous (homozygous due to identity by descent of the two disease alleles), where this proportion is a function of the disease allele frequency. Our map-based method is compared to Dahlberg's method of estimating recessive disease allele frequencies, which is based on the proportion of affected individuals whose parents are first cousins; this proportion is also a function of the disease allele frequency. For small to moderate sample sizes and traits that are not too common, our new method is more efficient (for some parameter values dramatically more efficient) than Dahlberg's method.
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Affiliation(s)
- F Haghighi
- Department of Genetics and Development, Columbia University, New York, N.Y., USA
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