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Sorge M, Savoré G, Gallo A, Acquarone D, Sbroggiò M, Velasco S, Zamporlini F, Femminò S, Moiso E, Morciano G, Balmas E, Raimondi A, Nattenberg G, Stefania R, Tacchetti C, Rizzo AM, Corsetto P, Ghigo A, Turco E, Altruda F, Silengo L, Pinton P, Raffaelli N, Sniadecki NJ, Penna C, Pagliaro P, Hirsch E, Riganti C, Tarone G, Bertero A, Brancaccio M. An intrinsic mechanism of metabolic tuning promotes cardiac resilience to stress. EMBO Mol Med 2024:10.1038/s44321-024-00132-z. [PMID: 39271959 DOI: 10.1038/s44321-024-00132-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 08/08/2024] [Accepted: 08/09/2024] [Indexed: 09/15/2024] Open
Abstract
Defining the molecular mechanisms underlying cardiac resilience is crucial to find effective approaches to protect the heart. A physiologic level of ROS is produced in the heart by fatty acid oxidation, but stressful events can boost ROS and cause mitochondrial dysfunction and cardiac functional impairment. Melusin is a muscle specific chaperone required for myocardial compensatory remodeling during stress. Here we report that Melusin localizes in mitochondria where it binds the mitochondrial trifunctional protein, a key enzyme in fatty acid oxidation, and decreases it activity. Studying both mice and human induced pluripotent stem cell-derived cardiomyocytes, we found that Melusin reduces lipid oxidation in the myocardium and limits ROS generation in steady state and during pressure overload and doxorubicin treatment, preventing mitochondrial dysfunction. Accordingly, the treatment with the lipid oxidation inhibitor Trimetazidine concomitantly with stressful stimuli limits ROS accumulation and prevents long-term heart dysfunction. These findings disclose a physiologic mechanism of metabolic regulation in the heart and demonstrate that a timely restriction of lipid metabolism represents a potential therapeutic strategy to improve cardiac resilience to stress.
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Affiliation(s)
- Matteo Sorge
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy.
| | - Giulia Savoré
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Andrea Gallo
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Davide Acquarone
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Mauro Sbroggiò
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Silvia Velasco
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Federica Zamporlini
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Ancona, 60121, Italy
| | - Saveria Femminò
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043, Italy
| | - Enrico Moiso
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Giampaolo Morciano
- Department of Medical Sciences, University of Ferrara, Ferrara, 44121, Italy
- Maria Cecilia Hospital, GVM Care and Research, Cotignola, 48033, Italy
| | - Elisa Balmas
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Andrea Raimondi
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Gabrielle Nattenberg
- Departments of Mechanical Engineering, Bioengineering, and Laboratory Medicine and Pathology, Institute for Stem Cell and Regenerative Medicine, and Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
| | - Rachele Stefania
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Carlo Tacchetti
- Experimental Imaging Centre, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Angela Maria Rizzo
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milano, 20133, Italy
| | - Paola Corsetto
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milano, 20133, Italy
| | - Alessandra Ghigo
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Emilia Turco
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Fiorella Altruda
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Lorenzo Silengo
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Paolo Pinton
- Department of Medical Sciences, University of Ferrara, Ferrara, 44121, Italy
- Maria Cecilia Hospital, GVM Care and Research, Cotignola, 48033, Italy
| | - Nadia Raffaelli
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Ancona, 60121, Italy
| | - Nathan J Sniadecki
- Departments of Mechanical Engineering, Bioengineering, and Laboratory Medicine and Pathology, Institute for Stem Cell and Regenerative Medicine, and Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
| | - Claudia Penna
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043, Italy
| | - Pasquale Pagliaro
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043, Italy
| | - Emilio Hirsch
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Chiara Riganti
- Department of Oncology, University of Turin, Torino, 10126, Italy
| | - Guido Tarone
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Alessandro Bertero
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy
| | - Mara Brancaccio
- Department of Molecular Biotechnologies and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Turin, Turin, 10126, Italy.
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2
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Poggio P, Rocca S, Fusella F, Ferretti R, Ala U, D'Anna F, Giugliano E, Panuzzo C, Fontana D, Palumbo V, Carrà G, Taverna D, Gambacorti-Passerini C, Saglio G, Fava C, Piazza R, Morotti A, Orso F, Brancaccio M. miR-15a targets the HSP90 co-chaperone Morgana in chronic myeloid leukemia. Sci Rep 2024; 14:15089. [PMID: 38956394 PMCID: PMC11220062 DOI: 10.1038/s41598-024-65404-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 06/19/2024] [Indexed: 07/04/2024] Open
Abstract
Morgana is a ubiquitous HSP90 co-chaperone protein coded by the CHORDC1 gene. Morgana heterozygous mice develop with age a myeloid malignancy resembling human atypical myeloid leukemia (aCML), now renamed MDS/MPN with neutrophilia. Patients affected by this pathology exhibit low Morgana levels in the bone marrow (BM), suggesting that Morgana downregulation plays a causative role in the human malignancy. A decrease in Morgana expression levels is also evident in the BM of a subgroup of Philadelphia-positive (Ph+) chronic myeloid leukemia (CML) patients showing resistance or an incomplete response to imatinib. Despite the relevance of these data, the mechanism through which Morgana expression is downregulated in patients' bone marrow remains unclear. In this study, we investigated the possibility that Morgana expression is regulated by miRNAs and we demonstrated that Morgana is under the control of four miRNAs (miR-15a/b and miR-26a/b) and that miR-15a may account for Morgana downregulation in CML patients.
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MESH Headings
- Animals
- Humans
- Mice
- Bone Marrow/metabolism
- Bone Marrow/pathology
- Down-Regulation
- Gene Expression Regulation, Leukemic
- HSP90 Heat-Shock Proteins/metabolism
- HSP90 Heat-Shock Proteins/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Molecular Chaperones/metabolism
- Molecular Chaperones/genetics
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Affiliation(s)
- Pietro Poggio
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Stefania Rocca
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Federica Fusella
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Roberta Ferretti
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Ugo Ala
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Flora D'Anna
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Emilia Giugliano
- Division of Internal Medicine and Hematology, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Cristina Panuzzo
- Department of Clinical and Biological Science, University of Turin, Orbassano, Italy
| | - Diletta Fontana
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Valeria Palumbo
- Department of Biology and Biotechnology, Sapienza University of Rome, Rome, Italy
| | - Giovanna Carrà
- Department of Clinical and Biological Science, University of Turin, Orbassano, Italy
| | - Daniela Taverna
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Carlo Gambacorti-Passerini
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Hematology Division and Bone Marrow Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Giuseppe Saglio
- Department of Clinical and Biological Science, University of Turin, Orbassano, Italy
| | - Carmen Fava
- Department of Clinical and Biological Science, University of Turin, Orbassano, Italy
| | - Rocco Piazza
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Hematology Division and Bone Marrow Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Alessandro Morotti
- Department of Clinical and Biological Science, University of Turin, Orbassano, Italy
| | - Francesca Orso
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
- Department of Translational Medicine (DIMET), University of Piemonte Orientale, Novara, Italy
| | - Mara Brancaccio
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy.
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Zhang H, He L, Li S, Zhai M, Ma S, Jin G, Li M, Zhou F, Tian H, Nuerkaman T, Sun Q, Zhang Y, Hou J, Sun G, Yin S. Cerebral iron deficiency may induce depression through downregulation of the hippocampal glucocorticoid-glucocorticoid receptor signaling pathway. J Affect Disord 2023; 332:125-135. [PMID: 37001697 DOI: 10.1016/j.jad.2023.03.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 03/17/2023] [Accepted: 03/25/2023] [Indexed: 04/08/2023]
Abstract
BACKGROUND Iron is a trace essential element to sustain the normal neurological function of human. Many researches had reported the involvement of iron deficiency (ID) in neural development and cognitive functions. However, the role of ID in pathogenesis of depression and its underlying mechanism are still unclear. METHODS In this study, we first used chronic unpredicted mild stress (CUMS) and iron deprivation mouse models to clarify the pathogenesis role of cerebral ID in depression. Then the role of hippocampal glucocorticoid (GC)-glucocorticoid receptor (GR) pathway in cerebral ID induced depression were elucidated in iron deprivation mice and iron deficiency anemia patients. RESULTS Our results revealed that both CUMS and iron deprivation could induce cerebral ID in mice, and combination of iron deprivation and CUMS could accelerate the onset and aggravate the symptoms of depression in mice. In hippocampus, ID led to neuronal injury and neurogenesis decrease, which might be related to downregulation of GC-GR signaling pathway caused GR dysfunction, thereby inhibiting the negative feedback regulation function of hippocampus on hypothalamic-pituitary-adrenal (HPA) axis. Moreover, the overactivity of HPA axis in iron deprivation mice and iron deficiency anemia patients also confirmed GR dysfunction. LIMITATIONS Iron deprivation led to food and water intake decrease of mice, which may affect the behavioral test. In addition, we mainly evaluated the role of hippocampal ID in depression, and the number of iron deficiency anemia patients was limited. CONCLUSIONS Our results identified that cerebral iron homeostasis was a key factor for maintaining mental stability.
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Affiliation(s)
- Hong Zhang
- School of Life science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lian He
- Department of Pathology, Cancer Hospital of China Medical University, Shenyang 110042, China
| | - Songfei Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Manhuayun Zhai
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Siman Ma
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ge Jin
- School of Pharmacy, Shenyang Medical College, Shenyang 110034, China
| | - Minyan Li
- Department of Hematology, General Hospital of Northern Theater Command, Shenyang 11016, China
| | - Fan Zhou
- Department of Hematology, General Hospital of Northern Theater Command, Shenyang 11016, China
| | - Hua Tian
- Department of Hematology, General Hospital of Northern Theater Command, Shenyang 11016, China
| | - Tuohutanguli Nuerkaman
- School of Life science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qiruo Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jincai Hou
- Pharmaceutical Research Institute, Shineway Pharmaceutical Co., Ltd, Beijing 100000, China
| | - Guoxiang Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Shiliang Yin
- School of Pharmacy, Shenyang Medical College, Shenyang 110034, China.
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Neumann J, Boknik P, Kirchhefer U, Gergs U. The role of PP5 and PP2C in cardiac health and disease. Cell Signal 2021; 85:110035. [PMID: 33964402 DOI: 10.1016/j.cellsig.2021.110035] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/16/2021] [Accepted: 05/03/2021] [Indexed: 02/08/2023]
Abstract
Protein phosphatases are important, for example, as functional antagonists of β-adrenergic stimulation of the mammalian heart. While β-adrenergic stimulations increase the phosphorylation state of regulatory proteins and therefore force of contraction in the heart, these phosphorylations are reversed and thus force is reduced by the activity of protein phosphatases. In this context the role of PP5 and PP2C is starting to unravel. They do not belong to the same family of phosphatases with regard to sequence homology, many similarities with regard to location, activation by lipids and putative substrates have been worked out over the years. We also suggest which pathways for regulation of PP5 and/or PP2C described in other tissues and not yet in the heart might be useful to look for in cardiac tissue. Both phosphatases might play a role in signal transduction of sarcolemmal receptors in the heart. Expression of PP5 and PP2C can be increased by extracellular stimuli in the heart. Because PP5 is overexpressed in failing animal and human hearts, and because overexpression of PP5 or PP2C leads to cardiac hypertrophy and KO of PP5 leads to cardiac hypotrophy, one might argue for a role of PP5 and PP2C in heart failure. Because PP5 and PP2C can reduce, at least in vitro, the phosphorylation state of proteins thought to be relevant for cardiac arrhythmias, a role of these phosphatases for cardiac arrhythmias is also probable. Thus, PP5 and PP2C might be druggable targets to treat important cardiac diseases like heart failure, cardiac hypertrophy and cardiac arrhythmias.
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Affiliation(s)
- Joachim Neumann
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Magdeburger Str. 4, D-06097 Halle, Germany.
| | - Peter Boknik
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Westfälische Wilhelms-Universität, Domagkstraße 12, D-48149 Münster, Germany.
| | - Uwe Kirchhefer
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Westfälische Wilhelms-Universität, Domagkstraße 12, D-48149 Münster, Germany.
| | - Ulrich Gergs
- Institut für Pharmakologie und Toxikologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Magdeburger Str. 4, D-06097 Halle, Germany.
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5
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Gorza L, Sorge M, Seclì L, Brancaccio M. Master Regulators of Muscle Atrophy: Role of Costamere Components. Cells 2021; 10:cells10010061. [PMID: 33401549 PMCID: PMC7823551 DOI: 10.3390/cells10010061] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 12/11/2022] Open
Abstract
The loss of muscle mass and force characterizes muscle atrophy in several different conditions, which share the expression of atrogenes and the activation of their transcriptional regulators. However, attempts to antagonize muscle atrophy development in different experimental contexts by targeting contributors to the atrogene pathway showed partial effects in most cases. Other master regulators might independently contribute to muscle atrophy, as suggested by our recent evidence about the co-requirement of the muscle-specific chaperone protein melusin to inhibit unloading muscle atrophy development. Furthermore, melusin and other muscle mass regulators, such as nNOS, belong to costameres, the macromolecular complexes that connect sarcolemma to myofibrils and to the extracellular matrix, in correspondence with specific sarcomeric sites. Costameres sense a mechanical load and transduce it both as lateral force and biochemical signals. Recent evidence further broadens this classic view, by revealing the crucial participation of costameres in a sarcolemmal “signaling hub” integrating mechanical and humoral stimuli, where mechanical signals are coupled with insulin and/or insulin-like growth factor stimulation to regulate muscle mass. Therefore, this review aims to enucleate available evidence concerning the early involvement of costamere components and additional putative master regulators in the development of major types of muscle atrophy.
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Affiliation(s)
- Luisa Gorza
- Department of Biomedical Sciences, University of Padova, 35121 Padova, Italy
- Correspondence:
| | - Matteo Sorge
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy; (M.S.); (L.S.); (M.B.)
| | - Laura Seclì
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy; (M.S.); (L.S.); (M.B.)
| | - Mara Brancaccio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy; (M.S.); (L.S.); (M.B.)
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6
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Palumbo V, Tariq A, Borgal L, Metz J, Brancaccio M, Gatti M, Wakefield JG, Bonaccorsi S. Drosophila Morgana is an Hsp90-interacting protein with a direct role in microtubule polymerisation. J Cell Sci 2020; 133:jcs236786. [PMID: 31907206 PMCID: PMC6983718 DOI: 10.1242/jcs.236786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 12/17/2019] [Indexed: 12/25/2022] Open
Abstract
Morgana (Mora, also known as CHORD in flies) and its mammalian homologue, called CHORDC1 or CHP1, is a highly conserved cysteine and histidine-rich domain (CHORD)-containing protein that has been proposed to function as an Hsp90 co-chaperone. Morgana deregulation promotes carcinogenesis in both mice and humans while, in Drosophila, loss of mora causes lethality and a complex mitotic phenotype that is rescued by a human morgana transgene. Here, we show that Drosophila Mora localises to mitotic spindles and co-purifies with the Hsp90-R2TP-TTT supercomplex and with additional well-known Hsp90 co-chaperones. Acute inhibition of Mora function in the early embryo results in a dramatic reduction in centrosomal microtubule stability, leading to small spindles nucleated from mitotic chromatin. Purified Mora binds to microtubules directly and promotes microtubule polymerisation in vitro, suggesting that Mora directly regulates spindle dynamics independently of its Hsp90 co-chaperone role.
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Affiliation(s)
- Valeria Palumbo
- Dipartimento di Biologia e Biotecnologie Sapienza, Università di Roma, 00185 Rome, Italy
- Biosciences/Living Systems Institute, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Ammarah Tariq
- Biosciences/Living Systems Institute, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Lori Borgal
- Biosciences/Living Systems Institute, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Jeremy Metz
- Biosciences/Living Systems Institute, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Mara Brancaccio
- Dipartimento di Genetica, Biologia e Biochimica, Università di Torino, 10126 Torino, Italy
| | - Maurizio Gatti
- Dipartimento di Biologia e Biotecnologie Sapienza, Università di Roma, 00185 Rome, Italy
- Istituto di Biologia e Patologia Molecolari del CNR, 00185 Rome, Italy
| | - James G Wakefield
- Biosciences/Living Systems Institute, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Silvia Bonaccorsi
- Dipartimento di Biologia e Biotecnologie Sapienza, Università di Roma, 00185 Rome, Italy
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7
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Rosińska S, Filipek A. Interaction of CacyBP/SIP with NPM1 and its influence on NPM1 localization and function in oxidative stress. J Cell Physiol 2018; 233:8826-8838. [PMID: 29806702 DOI: 10.1002/jcp.26797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/30/2018] [Indexed: 12/25/2022]
Abstract
Calcyclin (S100A6) binding protein/Siah-1 interacting protein (CacyBP/SIP) is mainly a cytoplasmic protein; however, some literature data suggested its presence in the nucleus. In this work we examined more precisely the nuclear localization and function of CacyBP/SIP. By applying mass spectrometry, we have identified several nuclear proteins, among them is nucleophosmin (NPM1), that may interact with CacyBP/SIP. Subsequent assays revealed that CacyBP/SIP forms complexes with NPM1 in the cell and that the interaction between these two proteins is direct. Interestingly, although CacyBP/SIP exhibits phosphatase activity, we have found that its overexpression favors phosphorylation of NPM1 on S125. In turn, the RNA immunoprecipitation assay indicated that the altered CacyBP/SIP level has an impact on the amount of 28S and 18S rRNA bound to NPM1. The overexpression of CacyBP/SIP resulted in a significant increase in the binding of 28S and 18S rRNA to NPM1, whereas silencing of CacyBP/SIP expression decreased 28S rRNA binding and had no effect on the binding of 18S rRNA. Further studies have shown that under oxidative stress, CacyBP/SIP overexpression alters NPM1 distribution in cell nuclei. In addition, staining for a nucleolar marker, fibrillarin, revealed that CacyBP/SIP is indispensable for maintaining the nucleolar structure. These results are in agreement with data obtained by western blot analysis, which show that upon oxidative stress the NPM1 level decreases but that CacyBP/SIP overexpression counteracts the effect of stress. Altogether, our results show for the first time that CacyBP/SIP binds to and affects the properties of a nuclear protein, NPM1, and that it is indispensable for preserving the structure of nucleoli under oxidative stress.
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Affiliation(s)
- Sara Rosińska
- Nencki Institute of Experimental Biology, Laboratory of Calcium Binding Proteins, Polish Academy of Sciences, Warsaw, Poland
| | - Anna Filipek
- Nencki Institute of Experimental Biology, Laboratory of Calcium Binding Proteins, Polish Academy of Sciences, Warsaw, Poland
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8
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Siligardi G, Zhang M, Prodromou C. The Stoichiometric Interaction of the Hsp90-Sgt1-Rar1 Complex by CD and SRCD Spectroscopy. Front Mol Biosci 2018; 4:95. [PMID: 29387685 PMCID: PMC5776081 DOI: 10.3389/fmolb.2017.00095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 12/19/2017] [Indexed: 11/13/2022] Open
Abstract
While the molecular details by which Hsp90 interacts with Sgt1 and Rar1 were previously described the exact stoichiometric complex that is formed remains elusive. Several possibilities remain that include two asymmetric complexes, Sgt12-Hsp902-Rar12 (two molecules of Sgt1 and Rar1 and one Hsp90 dimer) or Sgt12-Hsp902-Rar11 (with a single Rar1 molecule) and an asymmetric complex (Sgt11-Hsp902-Rar11). The Hsp90-mediated activation of NLR receptors (Nucleotide-binding domain and Leucine-rich Repeat) in the innate immunity of both plants and animals is dependent on the co-chaperone Sgt1 and in plants on Rar1, a cysteine- and histidine-rich domain (CHORD)-containing protein. The exact stoichiometry of such a complex may have a direct impact on NLR protein oligomerization and thus ultimately on the mechanism by which NLRs are activated. CD spectroscopy was successfully used to determine the stoichiometry of a ternary protein complex among Hsp90, Sgt1, and Rar1 in the presence of excess ADP. The results indicated that a symmetric Sgt12-Hsp902-Rar11 complex was formed that could allow two NLR molecules to simultaneously bind. The stoichiometry of this complex has implications on, and might promote, the dimerization of NLR proteins following their activation.
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Affiliation(s)
| | - Minghao Zhang
- Structural genomics Consortium, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Chrisostomos Prodromou
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Brighton, United Kingdom
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9
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The IKK/NF-κB signaling pathway requires Morgana to drive breast cancer metastasis. Nat Commun 2017; 8:1636. [PMID: 29158506 PMCID: PMC5696377 DOI: 10.1038/s41467-017-01829-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 10/19/2017] [Indexed: 12/31/2022] Open
Abstract
NF-κB is a transcription factor involved in the regulation of multiple physiological and pathological cellular processes, including inflammation, cell survival, proliferation, and cancer cell metastasis. NF-κB is frequently hyperactivated in several cancers, including triple-negative breast cancer. Here we show that NF-κB activation in breast cancer cells depends on the presence of the CHORDC1 gene product Morgana, a previously unknown component of the IKK complex and essential for IκBα substrate recognition. Morgana silencing blocks metastasis formation in breast cancer mouse models and this phenotype is reverted by IκBα downregulation. High Morgana expression levels in cancer cells decrease recruitment of natural killer cells in the first phases of tumor growth and induce the expression of cytokines able to attract neutrophils in the primary tumor, as well as in the pre-metastatic lungs, fueling cancer metastasis. In accordance, high Morgana levels positively correlate with NF-κB target gene expression and poor prognosis in human patients. NF-κB regulates inflammation, cell survival, proliferation, and metastasis and is often hyperactivated in triple-negative breast cancer. Here the authors show that Morgana, a protein highly expressed in triple-negative breast cancers, drives NF-kB activation to promote metastasis and neutrophil recruitment.
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Brancaccio M, Rocca S, Seclì L, Busso E, Fusella F. The double face of Morgana in tumorigenesis. Oncotarget 2016; 6:42603-12. [PMID: 26460959 PMCID: PMC4767456 DOI: 10.18632/oncotarget.6058] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 09/24/2015] [Indexed: 01/07/2023] Open
Abstract
Morgana is a chaperone protein able to bind to ROCK I and II and to inhibit their kinase activity. Rho kinases are multifunctional proteins involved in different cellular processes, including cytoskeleton organization, centrosome duplication, cell survival and proliferation. In human cancer samples Morgana appears to be either downregulated or overexpressed, and experimental evidence indicate that Morgana behaves both as an oncosuppressor and as a proto-oncogene. Our most recent findings demonstrated that if on the one hand low Morgana expression levels, by inducing ROCK II hyperactivation, cause centrosome overduplication and genomic instability, on the other hand, Morgana overexpression induces tumor cell survival and chemoresistance through the ROCK I-PTEN-AKT axis. Therefore, Morgana belongs to a new class of proteins, displaying both oncogenic and oncosuppressor features, depending on the specific cellular context.
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Affiliation(s)
- Mara Brancaccio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Stefania Rocca
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Laura Seclì
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Elena Busso
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Federica Fusella
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
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Sorge M, Brancaccio M. Melusin Promotes a Protective Signal Transduction Cascade in Stressed Hearts. Front Mol Biosci 2016; 3:53. [PMID: 27672636 PMCID: PMC5018970 DOI: 10.3389/fmolb.2016.00053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/29/2016] [Indexed: 01/02/2023] Open
Abstract
Melusin is a chaperone protein selectively expressed in heart and skeletal muscles. Melusin expression levels correlate with cardiac function in pre-clinical models and in human patients with aortic stenosis. Indeed, previous studies in several animal models indicated that Melusin plays a broad cardioprotective role in different pathological conditions. Chaperone proteins, besides playing a role in protein folding, are also able to facilitate supramolecular complex formation and conformational changes due to activation/deactivation of signaling molecules. This role sets chaperone proteins as crucial regulators of intracellular signal transduction pathways. In particular Melusin activates AKT and ERK1/2 signaling, protects cardiomyocytes from apoptosis and induces a compensatory hypertrophic response in several pathological conditions. Therefore, selective delivery of the Melusin gene in heart via cardiotropic adenoviral associated virus serotype 9 (AAV9), may represent a new promising gene-therapy approach for different cardiac pathologies.
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Affiliation(s)
- Matteo Sorge
- Department of Molecular Biotechnology and Health Sciences, University of Torino Torino, Italy
| | - Mara Brancaccio
- Department of Molecular Biotechnology and Health Sciences, University of Torino Torino, Italy
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The muscle-specific chaperone protein melusin is a potent cardioprotective agent. Basic Res Cardiol 2015; 110:10. [DOI: 10.1007/s00395-015-0466-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 01/01/2015] [Accepted: 01/16/2015] [Indexed: 01/12/2023]
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Zhao F, Xu G, Zhou Y, Wang L, Xie J, Ren S, Liu S, Zhu Y. MicroRNA-26b inhibits hepatitis B virus transcription and replication by targeting the host factor CHORDC1 protein. J Biol Chem 2014; 289:35029-41. [PMID: 25342750 DOI: 10.1074/jbc.m114.589978] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Hepatitis B virus (HBV) causes acute and chronic hepatitis in humans, and HBV infection is a major threat to global health. HBV replication is regulated by a series of host factors, including microRNAs (miRNAs), which are highly conserved small noncoding RNAs that participate in a variety of physiological and pathological processes. Here, we report that a chemically synthesized mimic of miR-26b inhibited HBV antigen expression, transcription, and replication, whereas antisense knockdown of endogenous miR-26b enhanced HBV replication in HepG2 cells. Overexpression and knockdown experiments showed that miR-26b significantly decreased HBV enhancer/promoter activities. We identified the cysteine- and histidine-rich domain containing 1 (CHORDC1) as a novel host factor target of miR-26b. CHORDC1 protein but not mRNA was markedly decreased by miR-26b overexpression via base-pairing with complementary sequences in the 3'UTR of its mRNA. Overexpression and knockdown studies showed that CHORDC1 increased viral antigen expression, transcription, and replication by elevating HBV enhancer/promoter activities. Conversely, HBV infection suppressed miR-26b expression and increased CHORDC1 protein levels in human liver cells. Another mature miRNA of the hsa-miR-26 family, miR-26a, had a similar function as miR-26b in targeting CHORDC1 and affecting HBV production. These results suggest that suppression of miR-26b expression up-regulates its target gene CHORDC1, which increases HBV enhancer/promoter activities and promotes viral transcription, gene expression, and replication. Our study could provide new insights into miRNA expression and the persistence of HBV infection.
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Affiliation(s)
- Fanpeng Zhao
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Gang Xu
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Yaqin Zhou
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Lvyin Wang
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Jiajia Xie
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Sheng Ren
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Shi Liu
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Ying Zhu
- From the State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, Hubei, China
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Overexpression of the muscle-specific protein, melusin, protects from cardiac ischemia/reperfusion injury. Basic Res Cardiol 2014; 109:418. [PMID: 24859929 DOI: 10.1007/s00395-014-0418-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 05/13/2014] [Accepted: 05/16/2014] [Indexed: 02/02/2023]
Abstract
Melusin is a muscle-specific protein which interacts with β1 integrin cytoplasmic domain and acts as chaperone protein. Its overexpression induces improved resistance to cardiac overload delaying left ventricle dilation and reducing the occurrence of heart failure. Here, we investigated possible protective effect of melusin overexpression against acute ischemia/reperfusion (I/R) injury with or without Postconditioning cardioprotective maneuvers. Melusin transgenic (Mel-TG) mice hearts were subjected to 30-min global ischemia followed by 60-min reperfusion. Interestingly, infarct size was reduced in Mel-TG mice hearts compared to wild-type (WT) hearts (40.3 ± 3.5 % Mel-TG vs. 59.5 ± 3.8 % WT hearts; n = 11 animals/group; P < 0.05). The melusin protective effect was also demonstrated by measuring LDH release, which was 50 % lower in Mel-TG compared to WT. Mel-TG hearts had a higher baseline level of AKT, ERK1/2 and GSK3β phosphorylation, and displayed increased phospho-kinases level after I/R compared to WT mice. Post-ischemic Mel-TG hearts displayed also increased levels of the anti-apoptotic factor phospho-BAD. Importantly, pharmacological inhibition of PI3K/AKT (Wortmannin) and ERK1/2 (U0126) pathways abrogated the melusin protective effect. Notably, HSP90, a chaperone known to protect heart from I/R injury, showed high levels of expression in the heart of Mel-TG mice suggesting a possible collaboration of this molecule with AKT/ERK/GSK3β pathways in the melusin-induced protection. Postconditioning, known to activate AKT/ERK/GSK3β pathways, significantly reduced IS and LDH release in WT hearts, but had no additive protective effects in Mel-TG hearts. These findings implicate melusin as an enhancer of AKT and ERK pathways and as a novel player in cardioprotection from I/R injury.
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