1
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Benzoni P, Gazzerro E, Fiorillo C, Baratto S, Bartolucci C, Severi S, Milanesi R, Lippi M, Langione M, Murano C, Meoni C, Popolizio V, Cospito A, Baruscotti M, Bucchi A, Barbuti A. Caveolin-3 and Caveolin-1 Interaction Decreases Channel Dysfunction Due to Caveolin-3 Mutations. Int J Mol Sci 2024; 25:980. [PMID: 38256054 PMCID: PMC10816214 DOI: 10.3390/ijms25020980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/15/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Caveolae constitute membrane microdomains where receptors and ion channels functionally interact. Caveolin-3 (cav-3) is the key structural component of muscular caveolae. Mutations in CAV3 lead to caveolinopathies, which result in both muscular dystrophies and cardiac diseases. In cardiomyocytes, cav-1 participates with cav-3 to form caveolae; skeletal myotubes and adult skeletal fibers do not express cav-1. In the heart, the absence of cardiac alterations in the majority of cases may depend on a conserved organization of caveolae thanks to the expression of cav-1. We decided to focus on three specific cav-3 mutations (Δ62-64YTT; T78K and W101C) found in heterozygosis in patients suffering from skeletal muscle disorders. We overexpressed both the WT and mutated cav-3 together with ion channels interacting with and modulated by cav-3. Patch-clamp analysis conducted in caveolin-free cells (MEF-KO), revealed that the T78K mutant is dominant negative, causing its intracellular retention together with cav-3 WT, and inducing a significant reduction in current densities of all three ion channels tested. The other cav-3 mutations did not cause significant alterations. Mathematical modelling of the effects of cav-3 T78K would impair repolarization to levels incompatible with life. For this reason, we decided to compare the effects of this mutation in other cell lines that endogenously express cav-1 (MEF-STO and CHO cells) and to modulate cav-1 expression with an shRNA approach. In these systems, the membrane localization of cav-3 T78K was rescued in the presence of cav-1, and the current densities of hHCN4, hKv1.5 and hKir2.1 were also rescued. These results constitute the first evidence of a compensatory role of cav-1 in the heart, justifying the reduced susceptibility of this organ to caveolinopathies.
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Affiliation(s)
- Patrizia Benzoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Elisabetta Gazzerro
- Unit of Muscle Research, Experimental and Clinical Research Center, Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and Charité-University Berlin, 13125 Berlin, Germany
| | - Chiara Fiorillo
- Child Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, DINOGMI-University of Genova, 16147 Genova, Italy
| | - Serena Baratto
- Center of Translational and Experimental Myology, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Chiara Bartolucci
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi”, University of Bologna, 47521 Cesena, Italy
| | - Stefano Severi
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi”, University of Bologna, 47521 Cesena, Italy
| | - Raffaella Milanesi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Melania Lippi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Marianna Langione
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Carmen Murano
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Clarissa Meoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Vera Popolizio
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Alessandro Cospito
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Mirko Baruscotti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Annalisa Bucchi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Andrea Barbuti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
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2
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DiFrancesco JC, Ragona F, Murano C, Frosio A, Melgari D, Binda A, Calamaio S, Prevostini R, Mauri M, Canafoglia L, Castellotti B, Messina G, Gellera C, Previtali R, Veggiotti P, Milanesi R, Barbuti A, Solazzi R, Freri E, Granata T, Rivolta I. A novel de novo HCN2 loss-of-function variant causing developmental and epileptic encephalopathy treated with a ketogenic diet. Epilepsia 2023; 64:e222-e228. [PMID: 37746765 DOI: 10.1111/epi.17777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Missense variants of hyperpolarization-activated, cyclic nucleotide-gated (HCN) ion channels cause variable phenotypes, ranging from mild generalized epilepsy to developmental and epileptic encephalopathy (DEE). Although variants of HCN1 are an established cause of DEE, those of HCN2 have been reported in generalized epilepsies. Here we describe the first case of DEE caused by the novel de novo heterozygous missense variant c.1379G>A (p.G460D) of HCN2. Functional characterization in transfected HEK293 cells and neonatal rat cortical neurons revealed that HCN2 p.G460D currents were strongly reduced compared to wild-type, consistent with a dominant negative loss-of-function effect. Immunofluorescence staining showed that mutant channels are retained within the cell and do not reach the membrane. Moreover, mutant HCN2 also affect HCN1 channels, by reducing the Ih current expressed by the HCN1-HCN2 heteromers. Due to the persistence of frequent seizures despite pharmacological polytherapy, the patient was treated with a ketogenic diet, with a significant and long-lasting reduction of episodes. In vitro experiments conducted in a ketogenic environment demonstrated that the clinical improvement observed with this dietary regimen was not mediated by a direct action on HCN2 activity. These results expand the clinical spectrum related to HCN2 channelopathies, further broadening our understanding of the pathogenesis of DEE.
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Affiliation(s)
| | - Francesca Ragona
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Carmen Murano
- School of Medicine and Surgery, University of Milano-Bicocca, Milan Center for Neuroscience (NeuroMI), Monza, Italy
| | - Anthony Frosio
- IMTC - Institute of Molecular and Translational Cardiology, San Donato Milanese, Italy
| | - Dario Melgari
- IMTC - Institute of Molecular and Translational Cardiology, San Donato Milanese, Italy
| | - Anna Binda
- School of Medicine and Surgery, University of Milano-Bicocca, Milan Center for Neuroscience (NeuroMI), Monza, Italy
| | - Serena Calamaio
- IMTC - Institute of Molecular and Translational Cardiology, San Donato Milanese, Italy
| | - Rachele Prevostini
- IMTC - Institute of Molecular and Translational Cardiology, San Donato Milanese, Italy
| | - Mario Mauri
- School of Medicine and Surgery, University of Milano-Bicocca, Milan Center for Neuroscience (NeuroMI), Monza, Italy
| | - Laura Canafoglia
- Integrated Diagnostics for Epilepsy, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Barbara Castellotti
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giuliana Messina
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Cinzia Gellera
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Roberto Previtali
- Pediatric Neurology Unit, V. Buzzi Hospital, University of Milan, Milan, Italy
| | | | - Raffaella Milanesi
- Department of Veterinary Medicine and Animal Science, University of Milan, Lodi, Italy
| | - Andrea Barbuti
- The Cell Physiology MiLab, Department of Biosciences, University of Milano, Milan, Italy
| | - Roberta Solazzi
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Elena Freri
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Tiziana Granata
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Ilaria Rivolta
- School of Medicine and Surgery, University of Milano-Bicocca, Milan Center for Neuroscience (NeuroMI), Monza, Italy
- IMTC - Institute of Molecular and Translational Cardiology, San Donato Milanese, Italy
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3
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Benzoni P, Da Dalt L, Elia N, Popolizio V, Cospito A, Giannetti F, Dell’Era P, Olesen MS, Bucchi A, Baruscotti M, Norata GD, Barbuti A. PITX2 gain-of-function mutation associated with atrial fibrillation alters mitochondrial activity in human iPSC atrial-like cardiomyocytes. Front Physiol 2023; 14:1250951. [PMID: 38028792 PMCID: PMC10679737 DOI: 10.3389/fphys.2023.1250951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia worldwide; however, the underlying causes of AF initiation are still poorly understood, particularly because currently available models do not allow in distinguishing the initial causes from maladaptive remodeling that induces and perpetuates AF. Lately, the genetic background has been proven to be important in the AF onset. iPSC-derived cardiomyocytes, being patient- and mutation-specific, may help solve this diatribe by showing the initial cell-autonomous changes underlying the development of the disease. Transcription factor paired-like homeodomain 2 (PITX2) has been identified as a key regulator of atrial development/differentiation, and the PITX2 genomic locus has the highest association with paroxysmal AF. PITX2 influences mitochondrial activity, and alterations in either its expression or function have been widely associated with AF. In this work, we investigate the activity of mitochondria in iPSC-derived atrial cardiomyocytes (aCMs) obtained from a young patient (24 years old) with paroxysmal AF, carrying a gain-of-function mutation in PITX2 (rs138163892) and from its isogenic control (CTRL) in which the heterozygous point mutation has been reverted to WT. PITX2 aCMs show a higher mitochondrial content, increased mitochondrial activity, and superoxide production under basal conditions when compared to CTRL aCMs. However, increasing mitochondrial workload by FCCP or β-adrenergic stimulation allows us to unmask mitochondrial defects in PITX2 aCMs, which are incapable of responding efficiently to the higher energy demand, determining ATP deficiency.
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Affiliation(s)
- Patrizia Benzoni
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
| | - Lorenzo Da Dalt
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Noemi Elia
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
- Cell Factory, Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Vera Popolizio
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
| | - Alessandro Cospito
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
| | - Federica Giannetti
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
- Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Istituto Auxologico Italiano IRCCS, Milano, Italy
| | - Patrizia Dell’Era
- Department of Molecular and Translational Medicine, Università degli Studi di Brescia, Brescia, Italy
| | - Morten S. Olesen
- The Heart Centre, Rigshospitalet, Laboratory for Molecular Cardiology, Department of Cardiology, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Annalisa Bucchi
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
| | - Mirko Baruscotti
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
| | - Giuseppe Danilo Norata
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Andrea Barbuti
- The Cell Physiology MiLab, Department Biosciences, Università degli Studi di Milano, Milano, Italy
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4
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Landi S, Giannetti F, Benzoni P, Campostrini G, Rossi G, Piantoni C, Bertoli G, Bonfanti C, Carnevali L, Bucchi A, Baruscotti M, Careccia G, Messina G, Barbuti A. Lack of the transcription factor Nfix causes tachycardia in mice sinus node and rats neonatal cardiomyocytes. Acta Physiol (Oxf) 2023; 239:e13981. [PMID: 37186371 DOI: 10.1111/apha.13981] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/20/2023] [Accepted: 04/23/2023] [Indexed: 05/17/2023]
Abstract
AIMS Nfix is a transcription factor belonging to the Nuclear Factor I (NFI) family comprising four members (Nfia, b, c, x). Nfix plays important roles in the development and function of several organs. In muscle development, Nfix controls the switch from embryonic to fetal myogenesis by promoting fast twitching fibres. In the adult muscle, following injury, lack of Nfix impairs regeneration, inducing higher content of slow-twitching fibres. Nfix is expressed also in the heart, but its function has been never investigated before. We studied Nfix role in this organ. METHODS Using Nfix-null and wild type (WT) mice we analyzed: (1) the expression pattern of Nfix during development by qPCR and (2) the functional alterations caused by its absence, by in vivo telemetry and in vitro patch clamp analysis. RESULTS AND CONCLUSIONS Nfix expression start in the heart from E12.5. Adult hearts of Nfix-null mice show a hearts morphology and sarcomeric proteins expression similar to WT. However, Nfix-null animals show tachycardia that derives form an intrinsic higher beating rate of the sinus node (SAN). Molecular and functional analysis revealed that sinoatrial cells of Nfix-null mice express a significantly larger L-type calcium current (Cacna1d + Cacna1c). Interestingly, downregulation of Nfix by sh-RNA in primary cultures of neonatal rat ventricular cardiomyocytes induced a similar increase in their spontaneous beating rate and in ICaL current. In conclusion, our data provide the first demonstration of a role of Nfix that, increasing the L-type calcium current, modulates heart rate.
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Affiliation(s)
- Sara Landi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Federica Giannetti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Patrizia Benzoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Giulia Campostrini
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Giuliana Rossi
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Chiara Piantoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Giorgia Bertoli
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Chiara Bonfanti
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Luca Carnevali
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Annalisa Bucchi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Mirko Baruscotti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Giorgia Careccia
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Graziella Messina
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Andrea Barbuti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
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5
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De Bortoli M, Meraviglia V, Mackova K, Frommelt LS, König E, Rainer J, Volani C, Benzoni P, Schlittler M, Cattelan G, Motta BM, Volpato C, Rauhe W, Barbuti A, Zacchigna S, Pramstaller PP, Rossini A. Modeling incomplete penetrance in arrhythmogenic cardiomyopathy by human induced pluripotent stem cell derived cardiomyocytes. Comput Struct Biotechnol J 2023; 21:1759-1773. [PMID: 36915380 PMCID: PMC10006475 DOI: 10.1016/j.csbj.2023.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/16/2023] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
Human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) are commonly used to model arrhythmogenic cardiomyopathy (ACM), a heritable cardiac disease characterized by severe ventricular arrhythmias, fibrofatty myocardial replacement and progressive ventricular dysfunction. Although ACM is inherited as an autosomal dominant disease, incomplete penetrance and variable expressivity are extremely common, resulting in different clinical manifestations. Here, we propose hiPSC-CMs as a powerful in vitro model to study incomplete penetrance in ACM. Six hiPSC lines were generated from blood samples of three ACM patients carrying a heterozygous deletion of exon 4 in the PKP2 gene, two asymptomatic (ASY) carriers of the same mutation and one healthy control (CTR), all belonging to the same family. Whole exome sequencing was performed in all family members and hiPSC-CMs were examined by ddPCR, western blot, Wes™ immunoassay system, patch clamp, immunofluorescence and RNASeq. Our results show molecular and functional differences between ACM and ASY hiPSC-CMs, including a higher amount of mutated PKP2 mRNA, a lower expression of the connexin-43 protein, a lower overall density of sodium current, a higher intracellular lipid accumulation and sarcomere disorganization in ACM compared to ASY hiPSC-CMs. Differentially expressed genes were also found, supporting a predisposition for a fatty phenotype in ACM hiPSC-CMs. These data indicate that hiPSC-CMs are a suitable model to study incomplete penetrance in ACM.
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Key Words
- ABC, active ß-catenin
- ACM, arrhythmogenic cardiomyopathy
- ASY, asymptomatic
- Arrhythmogenic cardiomyopathy
- BBB, bundle-branch block
- CMs, cardiomyocytes
- CTR, control
- Cx43, connexin-43
- DEGs, differentially expressed genes
- GATK, Genome Analysis Toolkit
- Human induced pluripotent stem cell derived cardiomyocytes
- ICD, implantable cardioverter-defibrillator
- ID, intercalated disk
- Incomplete penetrance
- LBB, left bundle-branch block
- MRI, magnetic resonance imagingmut, mutated
- NSVT, non-sustained ventricular tachycardia
- RV, right ventricle
- hiPSC, human induced pluripotent stem cell
- wt, wild type
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Affiliation(s)
- Marzia De Bortoli
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Viviana Meraviglia
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy.,Department of Anatomy and Embryology, Leiden University Medical Center, 2316 Leiden, the Netherlands
| | - Katarina Mackova
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Laura S Frommelt
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Eva König
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Johannes Rainer
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Chiara Volani
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy.,Universita` degli Studi di Milano, The Cell Physiology MiLab, Department of Biosciences, Milano, Italy
| | - Patrizia Benzoni
- Universita` degli Studi di Milano, The Cell Physiology MiLab, Department of Biosciences, Milano, Italy
| | - Maja Schlittler
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Giada Cattelan
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Benedetta M Motta
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Claudia Volpato
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Werner Rauhe
- San Maurizio Hospital, Department of Cardiology, Bolzano, Italy
| | - Andrea Barbuti
- Universita` degli Studi di Milano, The Cell Physiology MiLab, Department of Biosciences, Milano, Italy
| | - Serena Zacchigna
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cardiovascular Biology Laboratory, Trieste, Italy
| | - Peter P Pramstaller
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
| | - Alessandra Rossini
- Institute for Biomedicine (Affiliated to the University of Lübeck), Eurac Research, Bolzano, Italy
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6
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Da Dalt L, Castiglioni L, Baragetti A, Audano M, Svecla M, Bonacina F, Pedretti S, Uboldi P, Benzoni P, Giannetti F, Barbuti A, Pellegatta F, Indino S, Donetti E, Sironi L, Mitro N, Catapano A, Norata G. PCSK9 modulates cardiac metabolism and impacts HFpEF. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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De Bortoli M, Meraviglia V, Mackova K, Volani C, Frommelt LS, Schlittler M, Cattelan G, Konig E, Rauhe W, Barbuti A, Zacchigna S, Pramstaller PP, Rossini A. Are human induced pluripotent stem cell derived cardiomyocytes a good cellular model for studying incomplete penetrance in arrhythmogenic cardiomyopathy? Cardiovasc Res 2022. [DOI: 10.1093/cvr/cvac066.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): European Regional Development Fund and Interreg V-A Italy-Austria 2014-2020 and Department of Innovation, Research and University of the Autonomous Province of Bolzano-South Tyrol (Italy).
Background
Human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) were previously used to model several inherited heart diseases (1). Among these, arrhythmogenic cardiomyopathy (ACM) is characterized by a fibrofatty myocardial replacement and severe ventricular arrhythmias (2). ACM is mainly caused by mutations affecting proteins of intercalated discs (3) and shows incomplete penetrance and variable expressivity (4).
Purpose
To evaluate whether hiPSC-CMs provide a good in vitro model to study incomplete penetrance in ACM.
Material and methods
hiPSCs were generated from buffy coats of 6 close relatives. Three of them were ACM patients carrying a deletion of exon 4 in the PKP2 gene causing a premature stop codon, 2 were asymptomatic (ASY) PKP2 mutation carriers and 1 was a healthy control (CTR). Whole exome sequencing of the 6 individuals was performed. The purified hiPSC-CMs were cultured in basal and adipogenic medium and examined by ddPCR, western blot, Wes™ immunoassay system, patch clamp and immunofluorescence.
Results
All family members tested negative for additional mutations in ACM genes. As expected, half the amount of wild type (wt) PKP2 mRNA was found in ACM and ASY than in CTR hiPSC-CMs (2.25±0.27vs4.29±0.70 wtPKP2/HPRT1; p=0.028) (2.08±0.38vs4.29±0.70 wtPKP2/HPRT1; p=0.052). Of note, the mutated (mut) PKP2 mRNA was detected and significantly more expressed in ACM than in ASY hiPSC-CMs (0.33±0.04vs0.11±0.06 mutPKP2/HPRT1; p=0.029). While we confirmed a reduced amount of wt plakophillin-2 protein in ACM and ASY compared to CTR hiPSC-CMs (0.19±0.07vs0.81±0.28 wtPKP2/GAPDH; p=0.016), (0.25±0.07vs0.81±0.28 wtPKP2/GAPDH; p=0.11), the truncated protein was not detected. Moreover, a significantly lower expression of the active form of β-catenin (ABC) has been shown in ACM and ASY than in CTR hiPSC-CMs (0.93±0.18vs1.30±0.09 ABC/GAPDH; p=0.057), (0.76±0.10vs1.30±0.09 ABC/GAPDH; p=0.0057). In basal medium, ACM hiPSC-CMs had a significant lower overall sodium current density compared to CTR (-49.82±2.8 vs -69.38±4.8 pA/pF; p<0.0001) and to ASY (-49.82±2.8 vs -68.92±4.3 pA/pF; p<0.0001) hiPSC-CMs. In adipogenic medium, ACM hiPSC-CMs showed a higher lipid accumulation and a higher sarcomere disorganization than CTR (1580±219vs615±199 intensity/nuclei; p=0.0351) (0.019±0.001vs0.028±0.003 myofibril alignment index; p=0.039) and ASY (1580±219vs689±146 intensity/nuclei; p=0.0059) (0.019±0.001vs0.027±0.001 myofibril alignment index; p=0.010) hiPSC-CMs.
Conclusions
Here we report that ACM express a significantly higher amount of mutated PKP2 mRNA than ASY iPSC-CMs. Even though no differences were detected for plakophilin-2 and active β-catenin proteins between ACM and ASY iPSCM-CMs, the ACM showed a fatty phenotype and altered electrical activity that differed significantly from the CTR as well as from the ASY hiPSC-CMs, demonstrating that these cells provide a valid model to study incomplete penetrance in ACM.
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Affiliation(s)
- M De Bortoli
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - V Meraviglia
- Leiden University Medical Center, Department of Anatomy and Embryology , Leiden , Netherlands (The)
| | - K Mackova
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - C Volani
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - LS Frommelt
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - M Schlittler
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - G Cattelan
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - E Konig
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - W Rauhe
- San Maurizio Hospital, Department of Cardiology , Bolzano , Italy
| | - A Barbuti
- Universita` degli Studi di Milano, The Cell Physiology MiLab, Department of Biosciences , Milano , Italy
| | - S Zacchigna
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cardiovascular Biology Laboratory , Trieste , Italy
| | - PP Pramstaller
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
| | - A Rossini
- Eurac Research, Institute for Biomedicine (Affiliated to the University of Lübeck) , Bolzano , Italy
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8
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Sforza A, Vigorelli V, Rurali E, Perrucci GL, Gambini E, Arici M, Metallo A, Rinaldi R, Fiorina P, Barbuti A, Raucci A, Sacco E, Rocchetti M, Pompilio G, Genovese S, Vinci MC. Liraglutide preserves CD34+ stem cells from dysfunction Induced by high glucose exposure. Cardiovasc Diabetol 2022; 21:51. [PMID: 35397526 PMCID: PMC8994898 DOI: 10.1186/s12933-022-01486-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Background Glucagon like peptide-1 receptor agonists (GLP-1RAs) have shown to reduce mortality and cardiovascular events in patients with type 2 diabetes mellitus (T2DM). Since the impairment in number and function of vasculotrophic circulating CD34+ hematopoietic stem progenitor cells (HSPCs) in T2D has been reported to increase cardiovascular (CV) risk, we hypothesized that one of the mechanisms whereby GLP-1 RAs exert CV protective effects may be related to the ability to improve CD34+ HSPC function. Methods In cord blood (CB)-derived CD34+ HSPC, the expression of GLP-1 receptor (GLP-1R) mRNA, receptor protein and intracellular signaling was evaluated by RT-qPCR and Western Blot respectively. CD34+ HSPCs were exposed to high glucose (HG) condition and GLP-1RA liraglutide (LIRA) was added before as well as after functional impairment. Proliferation, CXCR4/SDF-1α axis activity and intracellular ROS production of CD34+ HSPC were evaluated. Results CD34+ HSPCs express GLP-1R at transcriptional and protein level. LIRA treatment prevented and rescued HSPC proliferation, CXCR4/SDF-1α axis activity and metabolic imbalance from HG-induced impairment. LIRA stimulation promoted intracellular cAMP accumulation as well as ERK1/2 and AKT signaling activation. The selective GLP-1R antagonist exendin (9–39) abrogated LIRA-dependent ERK1/2 and AKT phosphorylation along with the related protective effects. Conclusion We provided the first evidence that CD34+ HSPC express GLP-1R and that LIRA can favorably impact on cell dysfunction due to HG exposure. These findings open new perspectives on the favorable CV effects of GLP-1 RAs in T2DM patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12933-022-01486-9.
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9
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Piantoni C, Paina M, Molla D, Liu S, Bertoli G, Jiang H, Wang Y, Wang Y, Wang Y, DiFrancesco D, Barbuti A, Bucchi A, Baruscotti M. Chinese natural compound decreases pacemaking of rabbit cardiac sinoatrial cells by targeting second messenger regulation of f-channels. eLife 2022; 11:75119. [PMID: 35315774 PMCID: PMC8940175 DOI: 10.7554/elife.75119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/03/2022] [Indexed: 11/13/2022] Open
Abstract
Tongmai Yangxin (TMYX) is a complex compound of the Traditional Chinese Medicine (TCM) used to treat several cardiac rhythm disorders; however, no information regarding its mechanism of action is available. In this study we provide a detailed characterization of the effects of TMYX on the electrical activity of pacemaker cells and unravel its mechanism of action. Single-cell electrophysiology revealed that TMYX elicits a reversible and dose-dependent (2/6 mg/ml) slowing of spontaneous action potentials rate (−20.8/–50.2%) by a selective reduction of the diastolic phase (−50.1/–76.0%). This action is mediated by a negative shift of the If activation curve (−6.7/–11.9 mV) and is caused by a reduction of the cyclic adenosine monophosphate (cAMP)-induced stimulation of pacemaker channels. We provide evidence that TMYX acts by directly antagonizing the cAMP-induced allosteric modulation of the pacemaker channels. Noticeably, this mechanism functionally resembles the pharmacological actions of muscarinic stimulation or β-blockers, but it does not require generalized changes in cytoplasmic cAMP levels thus ensuring a selective action on rate. In agreement with a competitive inhibition mechanism, TMYX exerts its maximal antagonistic action at submaximal cAMP concentrations and then progressively becomes less effective thus ensuring a full contribution of If to pacemaker rate during high metabolic demand and sympathetic stimulation.
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Affiliation(s)
- Chiara Piantoni
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - Manuel Paina
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - David Molla
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - Sheng Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Giorgia Bertoli
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - Hongmei Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Yanyan Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yi Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yi Wang
- Institute of Traditional Chinese Medicine Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Dario DiFrancesco
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - Andrea Barbuti
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - Annalisa Bucchi
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
| | - Mirko Baruscotti
- Department of Biosciences, The Cell Physiology Lab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milano, Italy
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10
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Benzoni P, Bertoli G, Giannetti F, Piantoni C, Milanesi R, Pecchiari M, Barbuti A, Baruscotti M, Bucchi A. The funny current: Even funnier than 40 years ago. Uncanonical expression and roles of HCN/f channels all over the body. Prog Biophys Mol Biol 2021; 166:189-204. [PMID: 34400215 DOI: 10.1016/j.pbiomolbio.2021.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/25/2021] [Accepted: 08/09/2021] [Indexed: 12/25/2022]
Abstract
Discovered some 40 years ago, the If current has since been known as the "pacemaker" current due to its role in the initiation and modulation of the heartbeat and of neuronal excitability. But this is not all, the funny current keeps entertaining the researchers; indeed, several data discovering novel and uncanonical roles of f/HCN channel are quickly accumulating. In the present review, we provide an overview of the expression and cellular functions of HCN/f channels in a variety of systems/organs, and particularly in sour taste transduction, hormones secretion, activation of astrocytes and microglia, inhibition of osteoclastogenesis, renal ammonium excretion, and peristalsis in the gastrointestinal and urine systems. We also analyzed the role of HCN channels in sustaining cellular respiration in mitochondria and their participation to mitophagy under specific conditions. The relevance of HCN currents in undifferentiated cells, and specifically in the control of stem cell cycle and in bioelectrical signals driving left/right asymmetry during zygote development, is also considered. Finally, we present novel data concerning the expression of HCN mRNA in human leukocytes. We can thus conclude that the emerging evidence presented in this review clearly points to an increasing interest and importance of the "funny" current that goes beyond its role in cardiac sinoatrial and neuronal excitability regulation.
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Affiliation(s)
- Patrizia Benzoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy
| | - Giorgia Bertoli
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy
| | - Federica Giannetti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy
| | - Chiara Piantoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy; Present Address: Institute of Neurophysiology, Hannover Medical School, Carl-Neuberg-Str.1, 30625, Hannover, Germany
| | - Raffaella Milanesi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy; Present Address: Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Via Dell'Università 6, 26900, Lodi, Italy
| | - Matteo Pecchiari
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Via L. Mangiagalli 32, 20133, Milan, Italy
| | - Andrea Barbuti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy
| | - Mirko Baruscotti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy
| | - Annalisa Bucchi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via G. Celoria 26, 20133, Milan, Italy.
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11
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Da Dalt L, Giannetti F, Benzoni P, Audano M, Barbuti A, Mitro N, Catapano A, Norata D. Hyperglycemic condition mimics tgrls lipid accumulation in cardiomyocytes derived from human-IPSCS. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Da Dalt L, Castiglioni L, Baragetti A, Audano M, Svecla M, Bonacina F, Pedretti S, Uboldi P, Benzoni P, Giannetti F, Barbuti A, Pellegatta F, Indino S, Donetti E, Sironi L, Mitro N, Catapano AL, Norata GD. PCSK9 deficiency rewires heart metabolism and drives heart failure with preserved ejection fraction. Eur Heart J 2021; 42:3078-3090. [PMID: 34252181 PMCID: PMC8380058 DOI: 10.1093/eurheartj/ehab431] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/28/2021] [Accepted: 06/24/2021] [Indexed: 12/04/2022] Open
Abstract
Aims PCSK9 is secreted into the circulation, mainly by the liver, and interacts with low-density lipoprotein receptor (LDLR) homologous and non-homologous receptors, including CD36, thus favouring their intracellular degradation. As PCSK9 deficiency increases the expression of lipids and lipoprotein receptors, thus contributing to cellular lipid accumulation, we investigated whether this could affect heart metabolism and function. Methods and results Wild-type (WT), Pcsk9 KO, Liver conditional Pcsk9 KO and Pcsk9/Ldlr double KO male mice were fed for 20 weeks with a standard fat diet and then exercise resistance, muscle strength, and heart characteristics were evaluated. Pcsk9 KO presented reduced running resistance coupled to echocardiographic abnormalities suggestive of heart failure with preserved ejection fraction (HFpEF). Heart mitochondrial activity, following maximal coupled and uncoupled respiration, was reduced in Pcsk9 KO mice compared to WT mice and was coupled to major changes in cardiac metabolism together with increased expression of LDLR and CD36 and with lipid accumulation. A similar phenotype was observed in Pcsk9/Ldlr DKO, thus excluding a contribution for LDLR to cardiac impairment observed in Pcsk9 KO mice. Heart function profiling of the liver selective Pcsk9 KO model further excluded the involvement of circulating PCSK9 in the development of HFpEF, pointing to a possible role locally produced PCSK9. Concordantly, carriers of the R46L loss-of-function variant for PCSK9 presented increased left ventricular mass but similar ejection fraction compared to matched control subjects. Conclusion PCSK9 deficiency impacts cardiac lipid metabolism in an LDLR independent manner and contributes to the development of HFpEF.
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Affiliation(s)
- Lorenzo Da Dalt
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Laura Castiglioni
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli, 25, 20133 Milan, Italy
| | - Andrea Baragetti
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy.,IRCCS Multimedica Hospital, Via Milanese, 300, 20099 Sesto San Giovanni, Italy
| | - Matteo Audano
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Monika Svecla
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Fabrizia Bonacina
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Silvia Pedretti
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Patrizia Uboldi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Patrizia Benzoni
- Department of Biosciences, Università degli Studi di Milano, Via Celoria, 26, 20133 Milan, Italy
| | - Federica Giannetti
- Department of Biosciences, Università degli Studi di Milano, Via Celoria, 26, 20133 Milan, Italy
| | - Andrea Barbuti
- Department of Biosciences, Università degli Studi di Milano, Via Celoria, 26, 20133 Milan, Italy
| | - Fabio Pellegatta
- Centro SISA per lo studio dell'Aterosclerosi, Ospedale Bassini, Via Massimo Gorki, 50, 20092 Cinisello Balsamo, Italy
| | - Serena Indino
- Department of Biomedical Science for Health, Università degli Studi di Milano, Via Mangiagalli, 31, 20133 Milan, Italy
| | - Elena Donetti
- Department of Biomedical Science for Health, Università degli Studi di Milano, Via Mangiagalli, 31, 20133 Milan, Italy
| | - Luigi Sironi
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli, 25, 20133 Milan, Italy
| | - Nico Mitro
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy
| | - Alberico Luigi Catapano
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy.,IRCCS Multimedica Hospital, Via Milanese, 300, 20099 Sesto San Giovanni, Italy
| | - Giuseppe Danilo Norata
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via balzaretti, 9, 20133 Milan, Italy.,Centro SISA per lo studio dell'Aterosclerosi, Ospedale Bassini, Via Massimo Gorki, 50, 20092 Cinisello Balsamo, Italy
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13
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Benzoni P, Giannetti F, Cospito A, Rossini A, Bucchi A, Baruscotti M, Barbuti A. When multiple caveolins make the difference: Cav1 partly compensates Cav3 alterations and rescues ion channels expression. Europace 2021. [DOI: 10.1093/europace/euab116.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): Fondazione Cariplo
Caveolae are small-membrane invagination that contribute both to buffering excessive contraction-dependent membrane strain and to initiation of membrane repair. Moreover, they constitute micro-domains where receptors and ion channels are clustered, favouring their functional interaction. Caveolin-3 (Cav3) is the key structural component of muscular caveolae. Mutations in Cav3 gene are associated with alterations of the skeletal muscle architecture leading to some rare forms of hereditary skeletal myopathies and/or cardiomyopathies called caveolinopathies. Notably, skeletal muscle dysfunctions usually precede cardiac dysfunctions, even though the mutated Cav3 is expressed in both cell types.
An important difference between skeletal fibers and cardiomyocytes is that in the latter, caveolin-1 (Cav1) participates with Cav3 to form caveolae; skeletal myotubes instead do not express Cav1.The delay or lack of onset of cardiac alterations in caveolinopathies may depend on a preserved micro-domains organization in the heart compared to skeletal muscle, due to Cav1 expression. We decided to focus on a specific mutation T78K found in heterozygous in a patient with Ripple muscle disease and hyperCKemia. We have characterized human cardiomyocytes (CM) differentiated from induced pluripotent stem cells (iPSC) derived from this patient and one healthy control. In particular, we have investigated which caveolin isoforms are expressed at day 30 of differentiation, finding both Cav1 and Cav3, with a significant decrease of Cav3 isoform in T78K-CM. Their different expressions significantly increase T78K membrane resistance (3.27 ± 0.6 GΩ versus 1.64 ± 0.4 GΩ in the CTRL-CM), and consequently membrane excitability. The T78K_CM showed an increase spontaneous beating rate compared to CTRL (1,75± 0,08 Hz and 0,89 ± 0,4 Hz, respectively).
Previous laboratory analysis conducted in caveolin-free MEF cells, co-transfected with WT and T78K Cav3 mutation, revealed that the T78K mutant is dominant, inducing the retention of WT Cav3 in the perinuclear areas and causes significant reduction in current density of three ion channels (HCN4, Kv1.5 and Kir2.1) known to interact with caveolins. The dominant decreased in cav3 expression is in line with previous data in skeletal muscle biopsy, however, electrophysiological data would be likely incompatible with life. For this reason, we decided to compare the impact of this mutation in CHO cells that exhibit high levels of Cav1, and in cav-1 expressing MEF line. In these systems, the membrane localization of Cav3 T78K is rescued both in heterozygous and homozygous conditions. In line with caveolin membrane expression, HCN4, Kv1.5 and Kir2.1 density is also rescued to normal levels. These results constitute the first evidence of a possible role of Cav1 in compensating membrane disorganization and disfunction due to Cav3 mutations in the heart, making this organ less susceptible to caveolinopathies.
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Affiliation(s)
- P Benzoni
- University of Milan, Bioscience, Milan, Italy
| | - F Giannetti
- University of Milan, Bioscience, Milan, Italy
| | - A Cospito
- University of Milan, Bioscience, Milan, Italy
| | - A Rossini
- European Institute EURAC , Bolzano, Italy
| | - A Bucchi
- University of Milan, Bioscience, Milan, Italy
| | | | - A Barbuti
- University of Milan, Bioscience, Milan, Italy
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14
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Piantoni C, Carnevali L, Molla D, Barbuti A, DiFrancesco D, Bucchi A, Baruscotti M. Age-Related Changes in Cardiac Autonomic Modulation and Heart Rate Variability in Mice. Front Neurosci 2021; 15:617698. [PMID: 34084126 PMCID: PMC8168539 DOI: 10.3389/fnins.2021.617698] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 10/15/2020] [Accepted: 04/20/2021] [Indexed: 01/08/2023] Open
Abstract
Objective The aim of this study was to assess age-related changes in cardiac autonomic modulation and heart rate variability (HRV) and their association with spontaneous and pharmacologically induced vulnerability to cardiac arrhythmias, to verify the translational relevance of mouse models for further in-depth evaluation of the link between autonomic changes and increased arrhythmic risk with advancing age. Methods Heart rate (HR) and time- and frequency-domain indexes of HRV were calculated from Electrocardiogram (ECG) recordings in two groups of conscious mice of different ages (4 and 19 months old) (i) during daily undisturbed conditions, (ii) following peripheral β-adrenergic (atenolol), muscarinic (methylscopolamine), and β-adrenergic + muscarinic blockades, and (iii) following β-adrenergic (isoprenaline) stimulation. Vulnerability to arrhythmias was evaluated during daily undisturbed conditions and following β-adrenergic stimulation. Results HRV analysis and HR responses to autonomic blockades revealed that 19-month-old mice had a lower vagal modulation of cardiac function compared with 4-month-old mice. This age-related autonomic effect was not reflected in changes in HR, since intrinsic HR was lower in 19-month-old compared with 4-month-old mice. Both time- and frequency-domain HRV indexes were reduced following muscarinic, but not β-adrenergic blockade in younger mice, and to a lesser extent in older mice, suggesting that HRV is largely modulated by vagal tone in mice. Finally, 19-month-old mice showed a larger vulnerability to both spontaneous and isoprenaline-induced arrhythmias. Conclusion The present study combines HRV analysis and selective pharmacological autonomic blockades to document an age-related impairment in cardiac vagal modulation in mice which is consistent with the human condition. Given their short life span, mice could be further exploited as an aged model for studying the trajectory of vagal decline with advancing age using HRV measures, and the mechanisms underlying its association with proarrhythmic remodeling of the senescent heart.
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Affiliation(s)
- Chiara Piantoni
- Department of Biosciences, The PaceLab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milan, Italy.,Institute of Neurophysiology, Hannover Medical School, Hanover, Germany
| | - Luca Carnevali
- Stress Physiology Lab, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - David Molla
- Department of Biosciences, The PaceLab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milan, Italy
| | - Andrea Barbuti
- Department of Biosciences, The PaceLab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milan, Italy
| | - Dario DiFrancesco
- Department of Biosciences, The PaceLab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milan, Italy.,IBF-CNR, University of Milano Unit, Milan, Italy
| | - Annalisa Bucchi
- Department of Biosciences, The PaceLab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milan, Italy
| | - Mirko Baruscotti
- Department of Biosciences, The PaceLab and "Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata", Università degli Studi di Milano, Milan, Italy
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15
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Giannetti F, Benzoni P, Campostrini G, Milanesi R, Bucchi A, Baruscotti M, Dell'Era P, Rossini A, Barbuti A. A detailed characterization of the hyperpolarization-activated "funny" current (I f) in human-induced pluripotent stem cell (iPSC)-derived cardiomyocytes with pacemaker activity. Pflugers Arch 2021; 473:1009-1021. [PMID: 33934225 PMCID: PMC8245366 DOI: 10.1007/s00424-021-02571-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 10/22/2020] [Revised: 04/01/2021] [Accepted: 04/19/2021] [Indexed: 01/09/2023]
Abstract
Properties of the funny current (If) have been studied in several animal and cellular models, but so far little is known concerning its properties in human pacemaker cells. This work provides a detailed characterization of If in human-induced pluripotent stem cell (iPSC)–derived pacemaker cardiomyocytes (pCMs), at different time points. Patch-clamp analysis showed that If density did not change during differentiation; however, after day 30, it activates at more negative potential and with slower time constants. These changes are accompanied by a slowing in beating rate. If displayed the voltage-dependent block by caesium and reversed (Erev) at − 22 mV, compatibly with the 3:1 K+/Na+ permeability ratio. Lowering [Na+]o (30 mM) shifted the Erev to − 39 mV without affecting conductance. Increasing [K+]o (30 mM) shifted the Erev to − 15 mV with a fourfold increase in conductance. pCMs express mainly HCN4 and HCN1 together with the accessory subunits CAV3, KCR1, MiRP1, and SAP97 that contribute to the context-dependence of If. Autonomic agonists modulated the diastolic depolarization, and thus rate, of pCMs. The adrenergic agonist isoproterenol induced rate acceleration and a positive shift of If voltage-dependence (EC50 73.4 nM). The muscarinic agonists had opposite effects (Carbachol EC50, 11,6 nM). Carbachol effect was however small but it could be increased by pre-stimulation with isoproterenol, indicating low cAMP levels in pCMs. In conclusion, we demonstrated that pCMs display an If with the physiological properties expected by pacemaker cells and may thus represent a suitable model for studying human If-related sinus arrhythmias.
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Affiliation(s)
- Federica Giannetti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Patrizia Benzoni
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Giulia Campostrini
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy
- Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, 2333ZC, Leiden, The Netherlands
| | - Raffaella Milanesi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Via dell'Università 6, 26900, Lodi, Italy
| | - Annalisa Bucchi
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Mirko Baruscotti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy
| | - Patrizia Dell'Era
- Cellular Fate Reprogramming Unit, Department of Molecular and Translational Medicine, University of Brescia, viale Europa 11, 25123, Brescia, Italy
| | - Alessandra Rossini
- Institute for Biomedicine, Eurac Research, Affiliated Institute of the University of Lübeck, Viale Druso 1, 39100, Bolzano, Italy
| | - Andrea Barbuti
- The Cell Physiology MiLab, Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milano, Italy.
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Benzoni P, Campostrini G, Landi S, Bertini V, Marchina E, Iascone M, Ahlberg G, Olesen MS, Crescini E, Mora C, Bisleri G, Muneretto C, Ronca R, Presta M, Poliani PL, Piovani G, Verardi R, Di Pasquale E, Consiglio A, Raya A, Torre E, Lodrini AM, Milanesi R, Rocchetti M, Baruscotti M, DiFrancesco D, Memo M, Barbuti A, Dell'Era P. Human iPSC modelling of a familial form of atrial fibrillation reveals a gain of function of If and ICaL in patient-derived cardiomyocytes. Cardiovasc Res 2021; 116:1147-1160. [PMID: 31504264 PMCID: PMC7177512 DOI: 10.1093/cvr/cvz217] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 07/19/2019] [Accepted: 08/26/2019] [Indexed: 12/16/2022] Open
Abstract
AIMS Atrial fibrillation (AF) is the most common type of cardiac arrhythmias, whose incidence is likely to increase with the aging of the population. It is considered a progressive condition, frequently observed as a complication of other cardiovascular disorders. However, recent genetic studies revealed the presence of several mutations and variants linked to AF, findings that define AF as a multifactorial disease. Due to the complex genetics and paucity of models, molecular mechanisms underlying the initiation of AF are still poorly understood. Here we investigate the pathophysiological mechanisms of a familial form of AF, with particular attention to the identification of putative triggering cellular mechanisms, using patient's derived cardiomyocytes (CMs) differentiated from induced pluripotent stem cells (iPSCs). METHODS AND RESULTS Here we report the clinical case of three siblings with untreatable persistent AF whose whole-exome sequence analysis revealed several mutated genes. To understand the pathophysiology of this multifactorial form of AF we generated three iPSC clones from two of these patients and differentiated these cells towards the cardiac lineage. Electrophysiological characterization of patient-derived CMs (AF-CMs) revealed that they have higher beating rates compared to control (CTRL)-CMs. The analysis showed an increased contribution of the If and ICaL currents. No differences were observed in the repolarizing current IKr and in the sarcoplasmic reticulum calcium handling. Paced AF-CMs presented significantly prolonged action potentials and, under stressful conditions, generated both delayed after-depolarizations of bigger amplitude and more ectopic beats than CTRL cells. CONCLUSIONS Our results demonstrate that the common genetic background of the patients induces functional alterations of If and ICaL currents leading to a cardiac substrate more prone to develop arrhythmias under demanding conditions. To our knowledge this is the first report that, using patient-derived CMs differentiated from iPSC, suggests a plausible cellular mechanism underlying this complex familial form of AF.
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Affiliation(s)
- Patrizia Benzoni
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Giulia Campostrini
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Sara Landi
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Valeria Bertini
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Eleonora Marchina
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Maria Iascone
- USSD Laboratorio di Genetica Medica, Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Piazza OMS, 1, 24127 Bergamo, Italy
| | - Gustav Ahlberg
- The Heart Centre, Rigshospitalet, Laboratory for Molecular Cardiology, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Morten Salling Olesen
- The Heart Centre, Rigshospitalet, Laboratory for Molecular Cardiology, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Elisabetta Crescini
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Cristina Mora
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Gianluigi Bisleri
- Department of Surgery, Division of Cardiac Surgery, Queen's University, 99 University Avenue, Kingston, Ontario K7L 3N6, Canada
| | - Claudio Muneretto
- Clinical Department of Cardiovascular Surgery, University of Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Roberto Ronca
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Marco Presta
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Pier Luigi Poliani
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Giovanna Piovani
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Rosanna Verardi
- Department of Trasfusion Medicine, Laboratory for Stem Cells Manipulation and Cryopreservation, ASST Spedali Civili, viale Europa 11, 25123 Brescia, Italy
| | - Elisa Di Pasquale
- Department of Cardiovascular Medicine, Humanitas Clinical and Research Center, Via Rita Levi Montalcini, 4, 20090 Pieve Emanuele, Milan, Italy
| | - Antonella Consiglio
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy.,Department of Pathology and Experimental Therapeutics, Bellvitge University Hospital-IDIBELL, 08908 Hospitalet de Llobregat, C/Feixa Larga s/n, 08907 Barcelona, Spain.,Institute of Biomedicine of the University of Barcelona (IBUB), Carrer Baldiri Reixac 15-21, Barcelona 08028, Spain
| | - Angel Raya
- Center of Regenerative Medicine in Barcelona (CMRB), Hospital Duran i Reynals, Hospitalet de Llobregat, 08908 Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23 08010 Barcelona, Spain.,Networking Center of Biomedical Research in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Eleonora Torre
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, iazza dell'Ateneo Nuovo 1, 20126 Milan, Italy
| | - Alessandra Maria Lodrini
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, iazza dell'Ateneo Nuovo 1, 20126 Milan, Italy
| | - Raffaella Milanesi
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Marcella Rocchetti
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, iazza dell'Ateneo Nuovo 1, 20126 Milan, Italy
| | - Mirko Baruscotti
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Dario DiFrancesco
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Maurizio Memo
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
| | - Andrea Barbuti
- Department of Biosciences, Università degli Studi di Milano, via Celoria 26, 20133 Milan, Italy
| | - Patrizia Dell'Era
- Department of Molecular and Translational Medicine, cFRU lab, Università degli Studi di Brescia, viale Europa 11, 25123 Brescia, Italy
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17
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Malerba N, Benzoni P, Squeo GM, Milanesi R, Giannetti F, Sadleir LG, Poke G, Augello B, Croce AI, Barbuti A, Merla G. Generation of the induced human pluripotent stem cell lines CSSi009-A from a patient with a GNB5 pathogenic variant, and CSSi010-A from a CRISPR/Cas9 engineered GNB5 knock-out human cell line. Stem Cell Res 2019; 40:101547. [PMID: 31479876 DOI: 10.1016/j.scr.2019.101547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 07/30/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 10/26/2022] Open
Abstract
GNB5 loss-of-function pathogenic variants cause IDDCA, a rare autosomal recessive human genetic disease characterized by infantile onset of intellectual disability, sinus bradycardia, hypotonia, visual abnormalities, and epilepsy. We generated human induced pluripotent stem cells (hiPSCs) from skin fibroblasts of a patient with the homozygous c.136delG frameshift variant, and a GNB5 knock-out (KO) line by CRISPR/Cas9 editing. hiPSCs express common pluripotency markers and differentiate into the three germ layers. These lines represent a powerful cellular model to study the molecular basis of GNB5-related disorders as well as offer an in vitro model for drug screening.
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Affiliation(s)
- Natascia Malerba
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Patrizia Benzoni
- The PaceLab, Department of Biosciences, Università degli Studi di Milano, Italy
| | - Gabriella Maria Squeo
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Raffaella Milanesi
- The PaceLab, Department of Biosciences, Università degli Studi di Milano, Italy
| | - Federica Giannetti
- The PaceLab, Department of Biosciences, Università degli Studi di Milano, Italy
| | - Lynette G Sadleir
- Department of Paediatrics and Child Health, University of Otago Wellington, Wellington, New Zealand
| | - Gemma Poke
- Department of Paediatrics and Child Health, University of Otago Wellington, Wellington, New Zealand
| | - Bartolomeo Augello
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Anna Irma Croce
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Andrea Barbuti
- The PaceLab, Department of Biosciences, Università degli Studi di Milano, Italy
| | - Giuseppe Merla
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.
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18
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Bruno V, Allegretti L, Barbuti A, Bremond S, Cheng Y, Dechelle C, Dufour N, Feng H, Gargiulo L, Mouyon D, Santraine B, Shi S, Song Y, Sun Y, Villedieu E, Vincent B, Zheng L. WEST regular in-vessel Inspections with the Articulated Inspection Arm robot. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2018.11.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Pioner JM, Santini L, Palandri C, Martella D, Lupi F, Langione M, Querceto S, Grandinetti B, Balducci V, Benzoni P, Landi S, Barbuti A, Ferrarese Lupi F, Boarino L, Sartiani L, Tesi C, Mack DL, Regnier M, Cerbai E, Parmeggiani C, Poggesi C, Ferrantini C, Coppini R. Optical Investigation of Action Potential and Calcium Handling Maturation of hiPSC-Cardiomyocytes on Biomimetic Substrates. Int J Mol Sci 2019; 20:ijms20153799. [PMID: 31382622 PMCID: PMC6695920 DOI: 10.3390/ijms20153799] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 12/18/2022] Open
Abstract
Cardiomyocytes from human induced pluripotent stem cells (hiPSC-CMs) are the most promising human source with preserved genetic background of healthy individuals or patients. This study aimed to establish a systematic procedure for exploring development of hiPSC-CM functional output to predict genetic cardiomyopathy outcomes and identify molecular targets for therapy. Biomimetic substrates with microtopography and physiological stiffness can overcome the immaturity of hiPSC-CM function. We have developed a custom-made apparatus for simultaneous optical measurements of hiPSC-CM action potential and calcium transients to correlate these parameters at specific time points (day 60, 75 and 90 post differentiation) and under inotropic interventions. In later-stages, single hiPSC-CMs revealed prolonged action potential duration, increased calcium transient amplitude and shorter duration that closely resembled those of human adult cardiomyocytes from fresh ventricular tissue of patients. Thus, the major contribution of sarcoplasmic reticulum and positive inotropic response to β-adrenergic stimulation are time-dependent events underlying excitation contraction coupling (ECC) maturation of hiPSC-CM; biomimetic substrates can promote calcium-handling regulation towards adult-like kinetics. Simultaneous optical recordings of long-term cultured hiPSC-CMs on biomimetic substrates favor high-throughput electrophysiological analysis aimed at testing (mechanistic hypothesis on) disease progression and pharmacological interventions in patient-derived hiPSC-CMs.
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Affiliation(s)
- Josè Manuel Pioner
- Department of Experimental and Clinical Medicine, Division of Physiology, Università degli studi di Firenze, 50134 Florence, Italy.
| | - Lorenzo Santini
- Department NeuroFarBa, University of Florence, 50134 Florence, Italy
| | - Chiara Palandri
- Department NeuroFarBa, University of Florence, 50134 Florence, Italy
| | - Daniele Martella
- European Laboratory for Non-Linear Spectroscopy (LENS), 50019 Florence, Italy
- National Institute of Optics, CNR-INO, 50125 Florence, Italy
| | - Flavia Lupi
- European Laboratory for Non-Linear Spectroscopy (LENS), 50019 Florence, Italy
| | - Marianna Langione
- Department of Experimental and Clinical Medicine, Division of Physiology, Università degli studi di Firenze, 50134 Florence, Italy
| | - Silvia Querceto
- Department of Experimental and Clinical Medicine, Division of Physiology, Università degli studi di Firenze, 50134 Florence, Italy
| | - Bruno Grandinetti
- European Laboratory for Non-Linear Spectroscopy (LENS), 50019 Florence, Italy
| | | | - Patrizia Benzoni
- Department of Biosciences, Università degli studi di Milano, 20137 Milan, Italy
| | - Sara Landi
- Department of Biosciences, Università degli studi di Milano, 20137 Milan, Italy
| | - Andrea Barbuti
- Department of Biosciences, Università degli studi di Milano, 20137 Milan, Italy
| | | | - Luca Boarino
- Istituto Nazionale di Ricerca Metrologica INRiM, 10129 Turin, Italy
| | - Laura Sartiani
- Department NeuroFarBa, University of Florence, 50134 Florence, Italy
| | - Chiara Tesi
- Department of Experimental and Clinical Medicine, Division of Physiology, Università degli studi di Firenze, 50134 Florence, Italy
| | - David L Mack
- Department of Rehabilitation Medicine, University of Washington, Seattle, WA 98108, USA
| | - Michael Regnier
- Department of Bioengineering, University of Washington, Seattle, WA 98108, USA
| | - Elisabetta Cerbai
- Department NeuroFarBa, University of Florence, 50134 Florence, Italy
| | - Camilla Parmeggiani
- European Laboratory for Non-Linear Spectroscopy (LENS), 50019 Florence, Italy
- Department of Chemistry "Ugo Schiff", University of Florence, 50134 Florence, Italy
| | - Corrado Poggesi
- Department of Experimental and Clinical Medicine, Division of Physiology, Università degli studi di Firenze, 50134 Florence, Italy
| | - Cecilia Ferrantini
- Department of Experimental and Clinical Medicine, Division of Physiology, Università degli studi di Firenze, 50134 Florence, Italy
- European Laboratory for Non-Linear Spectroscopy (LENS), 50019 Florence, Italy
| | - Raffaele Coppini
- Department NeuroFarBa, University of Florence, 50134 Florence, Italy.
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20
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Frosio A, Molla D, Bertoli G, Bazzini C, Milanesi R, Gennaro F, Barbuti A, Bucchi A, Moretti L, Marchese P, DiFrancesco D, Baruscotti M. Abstract 808: Functional Characterization of a Novel Scn5a Mutation Associated With the Brugada Syndrome. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Brugada syndrome (BrS) is a cardiac disorder characterized by conduction abnormalities that can lead to sudden death; syncope and cardiac arrest are clinical manifestations which are often associated with an enhancement of the vagal activity. Mutations in the SCN5A gene (Na
v
1.5 channel) are the most common cause of the inherited forms of BrS.
Objective:
To characterize the functional behavior of mutant Na
v
1.5 channels expressing a novel heterozygous mutation (S805L) recently identified in an Italian family affected by the BrS.
Methods:
HEK cells were used as experimental model to express both the wild-type (WT) and the mutated S805L channels (alone, Homo or in combination, Hetero) and the accessory β-subunit (SCN1B). Patch-clamp and western blot experiments were carried out to assess the dysfunctional role of the mutation.
Results:
When compared to the WT current, the S508L mutation significantly (P&It0.05) decreases the peak current density by about 65% for the Homo condition (WT: -120.2±10.2, n=28); Homo: -40.3±4.2, n=16) and by 35% for the Hetero condition (Hetero: -78.2±8.3, n=27). Densitometric analysis carried out on western blot data further support the conclusion that S805L channels are less abundant in the plasma membrane. We also observed that the S805L mutation positively shifts the V½ values of the voltage dependence of the inactivation of both Homo and Hetero currents (V½: WT -85.5±0.2 mV, n=55; Homo -80.9±0.3 mV, n=22; Hetero -81.9±0.2 mV, n=25; P&It0.05); a positive shift of the V½ of the activation was also observed but only in the Homo condition (V½: WT -33.0±0.4 mV, n=28; Homo -30.0±0.5, n=16, P&It0.05). The kinetics of recovery from inactivation and the amplitude of the late sodium current were also evaluated but they were unaffected by the mutation.
Conclusion:
When expressed in the Hetero condition, the S805L mutation causes a reduction in the channel expression, however, the positive shift of the inactivation curve suggests an increase in Na channel availability. We thus believe that the precise quantitative balance between these two phenomena and their relation with vagal activity may underlie the clinical manifestation of the disease.
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Affiliation(s)
| | - David Molla
- Università degli Studi di MIlano, Milano, Italy
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21
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Marini C, Porro A, Rastetter A, Dalle C, Rivolta I, Bauer D, Oegema R, Nava C, Parrini E, Mei D, Mercer C, Dhamija R, Chambers C, Coubes C, Thévenon J, Kuentz P, Julia S, Pasquier L, Dubourg C, Carré W, Rosati A, Melani F, Pisano T, Giardino M, Innes AM, Alembik Y, Scheidecker S, Santos M, Figueiroa S, Garrido C, Fusco C, Frattini D, Spagnoli C, Binda A, Granata T, Ragona F, Freri E, Franceschetti S, Canafoglia L, Castellotti B, Gellera C, Milanesi R, Mancardi MM, Clark DR, Kok F, Helbig KL, Ichikawa S, Sadler L, Neupauerová J, Laššuthova P, Šterbová K, Laridon A, Brilstra E, Koeleman B, Lemke JR, Zara F, Striano P, Soblet J, Smits G, Deconinck N, Barbuti A, DiFrancesco D, LeGuern E, Guerrini R, Santoro B, Hamacher K, Thiel G, Moroni A, DiFrancesco JC, Depienne C. HCN1 mutation spectrum: from neonatal epileptic encephalopathy to benign generalized epilepsy and beyond. Brain 2019; 141:3160-3178. [PMID: 30351409 DOI: 10.1093/brain/awy263] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/09/2018] [Indexed: 12/15/2022] Open
Abstract
Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels control neuronal excitability and their dysfunction has been linked to epileptogenesis but few individuals with neurological disorders related to variants altering HCN channels have been reported so far. In 2014, we described five individuals with epileptic encephalopathy due to de novo HCN1 variants. To delineate HCN1-related disorders and investigate genotype-phenotype correlations further, we assembled a cohort of 33 unpublished patients with novel pathogenic or likely pathogenic variants: 19 probands carrying 14 different de novo mutations and four families with dominantly inherited variants segregating with epilepsy in 14 individuals, but not penetrant in six additional individuals. Sporadic patients had epilepsy with median onset at age 7 months and in 36% the first seizure occurred during a febrile illness. Overall, considering familial and sporadic patients, the predominant phenotypes were mild, including genetic generalized epilepsies and genetic epilepsy with febrile seizures plus (GEFS+) spectrum. About 20% manifested neonatal/infantile onset otherwise unclassified epileptic encephalopathy. The study also included eight patients with variants of unknown significance: one adopted patient had two HCN1 variants, four probands had intellectual disability without seizures, and three individuals had missense variants inherited from an asymptomatic parent. Of the 18 novel pathogenic missense variants identified, 12 were associated with severe phenotypes and clustered within or close to transmembrane domains, while variants segregating with milder phenotypes were located outside transmembrane domains, in the intracellular N- and C-terminal parts of the channel. Five recurrent variants were associated with similar phenotypes. Using whole-cell patch-clamp, we showed that the impact of 12 selected variants ranged from complete loss-of-function to significant shifts in activation kinetics and/or voltage dependence. Functional analysis of three different substitutions altering Gly391 revealed that these variants had different consequences on channel biophysical properties. The Gly391Asp variant, associated with the most severe, neonatal phenotype, also had the most severe impact on channel function. Molecular dynamics simulation on channel structure showed that homotetramers were not conducting ions because the permeation path was blocked by cation(s) strongly complexed to the Asp residue, whereas heterotetramers showed an instantaneous current component possibly linked to deformation of the channel pore. In conclusion, our results considerably expand the clinical spectrum related to HCN1 variants to include common generalized epilepsy phenotypes and further illustrate how HCN1 has a pivotal function in brain development and control of neuronal excitability.
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Affiliation(s)
- Carla Marini
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy.,EuroEPINOMICS RES Consortium
| | | | - Agnès Rastetter
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France
| | - Carine Dalle
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France
| | - Ilaria Rivolta
- School of Medicine and Surgery, University Milano-Bicocca, Monza, Italy
| | - Daniel Bauer
- Computational Biology and Simulation Group, Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Renske Oegema
- Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Caroline Nava
- EuroEPINOMICS RES Consortium.,Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Département de Génétique, Paris, France
| | - Elena Parrini
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy
| | - Davide Mei
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy
| | - Catherine Mercer
- Wessex Clinical Genetics Service, Princess Anne Hospital, Southampton, UK
| | - Radhika Dhamija
- Department of Clinical Genomics and Neurology, Mayo Clinic, Phoenix, AZ, USA
| | - Chelsea Chambers
- Department of Neurosciences, University of Virginia, Charlottesville, VA, USA
| | - Christine Coubes
- Département de Génétique Médicale, Maladies Rares et Médecine Personnalisée, Hôpital Arnaud de Villeneuve, Montpellier, France
| | - Julien Thévenon
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon and INSERM UMR 1231 GAD team, Genetics of Developmental Anomalies, Université de Bourgogne-Franche Comté, Dijon, France
| | - Paul Kuentz
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon and INSERM UMR 1231 GAD team, Genetics of Developmental Anomalies, Université de Bourgogne-Franche Comté, Dijon, France.,Génétique Biologique Histologie, CHRU de Besançon, Besançon, France
| | - Sophie Julia
- Service de génétique médicale, Pôle de biologie, CHU de Toulouse - Hôpital Purpan, Toulouse, France
| | - Laurent Pasquier
- Service de Génétique Clinique, Centre Référence Déficiences Intellectuelles de causes rares (CRDI), CHU Rennes, Rennes, France
| | - Christèle Dubourg
- Laboratoire de Génétique Moléculaire et Génomique, CHU de Rennes, Rennes, France
| | - Wilfrid Carré
- Laboratoire de Génétique Moléculaire et Génomique, CHU de Rennes, Rennes, France
| | - Anna Rosati
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy
| | - Federico Melani
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy
| | - Tiziana Pisano
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy
| | - Maria Giardino
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy
| | - A Micheil Innes
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Yves Alembik
- Laboratoires de génétique, Institut de génétique médicale d'Alsace, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sophie Scheidecker
- Laboratoires de génétique, Institut de génétique médicale d'Alsace, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Manuela Santos
- Neuropediatric Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Sonia Figueiroa
- Neuropediatric Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Cristina Garrido
- Neuropediatric Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Carlo Fusco
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Daniele Frattini
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Carlotta Spagnoli
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Anna Binda
- School of Medicine and Surgery, University Milano-Bicocca, Monza, Italy
| | - Tiziana Granata
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | | | - Elena Freri
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | | | | | | | - Cinzia Gellera
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Raffaella Milanesi
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milan, Italy
| | - Maria Margherita Mancardi
- Child Neuropsychiatry Unit, Department of Medical and Surgical Neurosciences and Rehabilitation, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | | | - Fernando Kok
- Mendelics Genomic Analysis, Sao Paulo, SP, Brazil
| | - Katherine L Helbig
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Shoji Ichikawa
- Department of Clinical Diagnostics, Ambry Genetics, Aliso Viejo, CA, USA
| | - Laurie Sadler
- Division of Genetics, Department of Pediatrics, Oishei Children's Hospital, Jacobs School of Medicine and Biomedical Sciences, University of Buffalo, State University of New York, Buffalo, NY, USA
| | - Jana Neupauerová
- Department of Child Neurology, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Petra Laššuthova
- Department of Child Neurology, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Katalin Šterbová
- EuroEPINOMICS RES Consortium.,Department of Child Neurology, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Annick Laridon
- Department of Neurology, Academic Center for Epileptology, Kempenhaeghe/Maastricht University Medical Center, Heeze, The Netherlands
| | - Eva Brilstra
- EuroEPINOMICS RES Consortium.,Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Bobby Koeleman
- EuroEPINOMICS RES Consortium.,Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Johannes R Lemke
- EuroEPINOMICS RES Consortium.,Institute of Human Genetics, University of Leipzig Hospitals and Clinics, Leipzig, Germany
| | - Federico Zara
- Laboratory of Neurogenetics and Neuroscience, Institute G Gaslini, Genova, Italy
| | - Pasquale Striano
- EuroEPINOMICS RES Consortium.,Pediatric Neurology and Muscular Diseases Unit, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 'G Gaslini' Institute, Genova, Italy
| | - Julie Soblet
- Department of Genetics, Hôpital Universitaire des Enfants Reine Fabiola, ULB Center of Human Genetics, Université Libre de Bruxelles, Brussels, Belgium.,Department of Genetics, Hôpital Erasme ULB Center of Human Genetics, Université Libre de Bruxelles, Brussels, Belgium.,Interuniversity Institute of Bioinformatics in Brussels, Université Libre de Bruxelles, Brussels, Belgium
| | - Guillaume Smits
- Department of Genetics, Hôpital Universitaire des Enfants Reine Fabiola, ULB Center of Human Genetics, Université Libre de Bruxelles, Brussels, Belgium.,Department of Genetics, Hôpital Erasme ULB Center of Human Genetics, Université Libre de Bruxelles, Brussels, Belgium.,Interuniversity Institute of Bioinformatics in Brussels, Université Libre de Bruxelles, Brussels, Belgium
| | - Nicolas Deconinck
- Department of Pediatric Neurology, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, ULB, Brussels, Belgium
| | - Andrea Barbuti
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milan, Italy
| | - Dario DiFrancesco
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milan, Italy
| | - Eric LeGuern
- EuroEPINOMICS RES Consortium.,Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Département de Génétique, Paris, France
| | - Renzo Guerrini
- Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department, A Meyer Children's Hospital, University of Florence, Viale Pieraccini 24, Florence, Italy.,EuroEPINOMICS RES Consortium
| | - Bina Santoro
- Department of Neuroscience, Columbia University, New York, NY, USA
| | - Kay Hamacher
- Computational Biology and Simulation Group, Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Gerhard Thiel
- Membrane Biophysics, Deparment of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Anna Moroni
- Department of Biosciences, University of Milan, Milan, Italy
| | - Jacopo C DiFrancesco
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Department of Neurology, San Gerardo Hospital, University Milano-Bicocca, Monza, Italy
| | - Christel Depienne
- EuroEPINOMICS RES Consortium.,Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,IGBMC, CNRS UMR 7104/INSERM U964/Université de Strasbourg, Illkirch, France.,Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
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22
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DiFrancesco JC, Castellotti B, Milanesi R, Ragona F, Freri E, Canafoglia L, Franceschetti S, Ferrarese C, Magri S, Taroni F, Costa C, Labate A, Gambardella A, Solazzi R, Binda A, Rivolta I, Di Gennaro G, Casciato S, D’Incerti L, Barbuti A, DiFrancesco D, Granata T, Gellera C. HCN ion channels and accessory proteins in epilepsy: genetic analysis of a large cohort of patients and review of the literature. Epilepsy Res 2019; 153:49-58. [DOI: 10.1016/j.eplepsyres.2019.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/01/2019] [Accepted: 04/08/2019] [Indexed: 11/28/2022]
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23
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Baruscotti M, Bucchi A, Milanesi R, Paina M, Barbuti A, Gnecchi-Ruscone T, Bianco E, Vitali-Serdoz L, Cappato R, DiFrancesco D. A gain-of-function mutation in the cardiac pacemaker HCN4 channel increasing cAMP sensitivity is associated with familial Inappropriate Sinus Tachycardia. Eur Heart J 2019; 38:280-288. [PMID: 28182231 DOI: 10.1093/eurheartj/ehv582] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/01/2015] [Accepted: 10/07/2015] [Indexed: 01/09/2023] Open
Affiliation(s)
- Mirko Baruscotti
- Department of Biosciences, The PaceLab and 'Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata', Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
| | - Annalisa Bucchi
- Department of Biosciences, The PaceLab and 'Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata', Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
| | - Raffaella Milanesi
- Department of Biosciences, The PaceLab and 'Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata', Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
| | - Manuel Paina
- Department of Biosciences, The PaceLab and 'Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata', Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
| | - Andrea Barbuti
- Department of Biosciences, The PaceLab and 'Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata', Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
| | | | - Elisabetta Bianco
- Cardiovascular Department, 'Ospedali Riuniti di Trieste', University Hospital, Trieste, Italy
| | | | | | - Dario DiFrancesco
- Department of Biosciences, The PaceLab and 'Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata', Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
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24
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Campostrini G, DiFrancesco JC, Castellotti B, Milanesi R, Gnecchi-Ruscone T, Bonzanni M, Bucchi A, Baruscotti M, Ferrarese C, Franceschetti S, Canafoglia L, Ragona F, Freri E, Labate A, Gambardella A, Costa C, Gellera C, Granata T, Barbuti A, DiFrancesco D. A Loss-of-Function HCN4 Mutation Associated With Familial Benign Myoclonic Epilepsy in Infancy Causes Increased Neuronal Excitability. Front Mol Neurosci 2018; 11:269. [PMID: 30127718 PMCID: PMC6089338 DOI: 10.3389/fnmol.2018.00269] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 07/16/2018] [Indexed: 01/03/2023] Open
Abstract
HCN channels are highly expressed and functionally relevant in neurons and increasing evidence demonstrates their involvement in the etiology of human epilepsies. Among HCN isoforms, HCN4 is important in cardiac tissue, where it underlies pacemaker activity. Despite being expressed also in deep structures of the brain, mutations of this channel functionally shown to be associated with epilepsy have not been reported yet. Using Next Generation Sequencing for the screening of patients with idiopathic epilepsy, we identified the p.Arg550Cys (c.1648C>T) heterozygous mutation on HCN4 in two brothers affected by benign myoclonic epilepsy of infancy. Functional characterization in heterologous expression system and in neurons showed that the mutation determines a loss of function of HCN4 contribution to activity and an increase of neuronal discharge, potentially predisposing to epilepsy. Expressed in cardiomyocytes, mutant channels activate at slightly more negative voltages than wild-type (WT), in accordance with borderline bradycardia. While HCN4 variants have been frequently associated with cardiac arrhythmias, these data represent the first experimental evidence that functional alteration of HCN4 can also be involved in human epilepsy through a loss-of-function effect and associated increased neuronal excitability. Since HCN4 appears to be highly expressed in deep brain structures only early during development, our data provide a potential explanation for a link between dysfunctional HCN4 and infantile epilepsy. These findings suggest that it may be useful to include HCN4 screening to extend the knowledge of the genetic causes of infantile epilepsies, potentially paving the way for the identification of innovative therapeutic strategies.
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Affiliation(s)
- Giulia Campostrini
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Jacopo C DiFrancesco
- Clinical Neurophysiology and Epilepsy Center, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Laboratory of Neurobiology, Department of Neurology, Milan Center for Neuroscience, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Barbara Castellotti
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Raffaella Milanesi
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | | | - Mattia Bonzanni
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Annalisa Bucchi
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Mirko Baruscotti
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Carlo Ferrarese
- Laboratory of Neurobiology, Department of Neurology, Milan Center for Neuroscience, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Silvana Franceschetti
- Clinical Neurophysiology and Epilepsy Center, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Laura Canafoglia
- Clinical Neurophysiology and Epilepsy Center, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Francesca Ragona
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Elena Freri
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Angelo Labate
- Institute of Neurology, Università degli Studi Magna Græcia di Catanzaro, Catanzaro, Italy
| | - Antonio Gambardella
- Institute of Neurology, Università degli Studi Magna Græcia di Catanzaro, Catanzaro, Italy
| | - Cinzia Costa
- Neurology Unit, Ospedale S. Maria della Misericordia, Department of Medicine, University of Perugia, Perugia, Italy
| | - Cinzia Gellera
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Tiziana Granata
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Andrea Barbuti
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Dario DiFrancesco
- Molecular Physiology and Neurobiology, The PaceLab, Department of Biosciences, Università degli Studi di Milano, Milan, Italy
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25
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Binda A, Panariti A, Barbuti A, Murano C, Dal Magro R, Masserini M, Re F, Rivolta I. Modulation of the intrinsic neuronal excitability by multifunctional liposomes tailored for the treatment of Alzheimer's disease. Int J Nanomedicine 2018; 13:4059-4071. [PMID: 30034232 PMCID: PMC6047604 DOI: 10.2147/ijn.s161563] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose Nanotechnologies turned out to be promising in the development of diagnostic and therapeutic approaches toward neurodegenerative disorders. However, only a very scant number of nanodevices until now proved to be effective on preclinical animal models. Although specific tests in vivo are available to assess the potential toxicity of these nanodevices on cognitive functions, those to evaluate their biosafety in vitro on neurons are still to be improved. Materials and methods We utilized the patch-clamp technique on primary cultures of cortical neural cells isolated from neonatal rats, aiming to evaluate their electrical properties after the incubation with liposomes (mApoE-PA-LIPs), previously proved able to cross the blood–brain barrier and to be effective on mouse models of Alzheimer’s disease (AD), both in the absence and in the presence of β-amyloid peptide oligomers. Results Data show a high degree of biocompatibility, evaluated by lactate dehydrogenase (LDH) release and MTT assay, and the lack of cellular internalization. After the incubation with mApoE-PA-LIPs, neuronal membranes show an increase in the input resistance (from 724.14±76 MΩ in untreated population to 886.06±86 MΩ in the treated one), a reduction in the rheobase current (from 29.6±3 to 24.2±3 pA in untreated and treated, respectively), and an increase of the firing frequency, consistent with an ultimate increase in intrinsic excitability. Data obtained after co-incubation of mApoE-PA-LIPs with β-amyloid peptide oligomers suggest a retention of liposome efficacy. Conclusion These data suggest the ability of liposomes to modulate neuronal electrical properties and are compatible with the previously demonstrated amelioration of cognitive functions induced by treatment of AD mice with liposomes. We conclude that this electrophysiological approach could represent a useful tool for nanomedicine to evaluate the effect of nanoparticles on intrinsic neuronal excitability.
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Affiliation(s)
- Anna Binda
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy,
| | - Alice Panariti
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy,
| | - Andrea Barbuti
- Department of Biosciences, The PaceLab and Interuniversity Center of Molecular Medicine and Applied Biophysics (CIMMBA), University of Milan, Milano, Italy
| | - Carmen Murano
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy,
| | - Roberta Dal Magro
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy,
| | - Massimo Masserini
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy, .,Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Monza, Italy, .,Nanomedicine Center NANOMIB, University of Milano-Bicocca, Milano, Italy,
| | - Francesca Re
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy, .,Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Monza, Italy, .,Nanomedicine Center NANOMIB, University of Milano-Bicocca, Milano, Italy,
| | - Ilaria Rivolta
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy, .,Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Monza, Italy, .,Nanomedicine Center NANOMIB, University of Milano-Bicocca, Milano, Italy,
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26
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Bonzanni M, DiFrancesco JC, Milanesi R, Campostrini G, Castellotti B, Bucchi A, Baruscotti M, Ferrarese C, Franceschetti S, Canafoglia L, Ragona F, Freri E, Labate A, Gambardella A, Costa C, Rivolta I, Gellera C, Granata T, Barbuti A, DiFrancesco D. A novel de novo HCN1 loss-of-function mutation in genetic generalized epilepsy causing increased neuronal excitability. Neurobiol Dis 2018; 118:55-63. [PMID: 29936235 DOI: 10.1016/j.nbd.2018.06.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 11/26/2022] Open
Abstract
The causes of genetic epilepsies are unknown in the majority of patients. HCN ion channels have a widespread expression in neurons and increasing evidence demonstrates their functional involvement in human epilepsies. Among the four known isoforms, HCN1 is the most expressed in the neocortex and hippocampus and de novo HCN1 point mutations have been recently associated with early infantile epileptic encephalopathy. So far, HCN1 mutations have not been reported in patients with idiopathic epilepsy. Using a Next Generation Sequencing approach, we identified the de novo heterozygous p.Leu157Val (c.469C > G) novel mutation in HCN1 in an adult male patient affected by genetic generalized epilepsy (GGE), with normal cognitive development. Electrophysiological analysis in heterologous expression model (CHO cells) and in neurons revealed that L157V is a loss-of-function, dominant negative mutation causing reduced HCN1 contribution to net inward current and responsible for an increased neuronal firing rate and excitability, potentially predisposing to epilepsy. These data represent the first evidence that autosomal dominant missense mutations of HCN1 can also be involved in GGE, without the characteristics of epileptic encephalopathy reported previously. It will be important to include HCN1 screening in patients with GGE, in order to extend the knowledge of the genetic causes of idiopathic epilepsies, thus paving the way for the identification of innovative therapeutic strategies.
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Affiliation(s)
- Mattia Bonzanni
- Dept. of Biosciences, The PaceLab, University of Milano, Milano, Italy
| | - Jacopo C DiFrancesco
- Clinical Neurophysiology and Epilepsy Center, "C. Besta" Neurological Institute, Milano, Italy; Dept. of Neurology, San Gerardo Hospital, Laboratory of Neurobiology, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy.
| | | | | | - Barbara Castellotti
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, "C. Besta" Neurological Institute, Milano, Italy
| | - Annalisa Bucchi
- Dept. of Biosciences, The PaceLab, University of Milano, Milano, Italy
| | - Mirko Baruscotti
- Dept. of Biosciences, The PaceLab, University of Milano, Milano, Italy
| | - Carlo Ferrarese
- Dept. of Neurology, San Gerardo Hospital, Laboratory of Neurobiology, Milan Center for Neuroscience, University of Milano-Bicocca, Monza, Italy
| | - Silvana Franceschetti
- Clinical Neurophysiology and Epilepsy Center, "C. Besta" Neurological Institute, Milano, Italy
| | - Laura Canafoglia
- Clinical Neurophysiology and Epilepsy Center, "C. Besta" Neurological Institute, Milano, Italy
| | - Francesca Ragona
- Dept. of Pediatric Neuroscience, "C. Besta" Neurological Institute, Milano, Italy
| | - Elena Freri
- Dept. of Pediatric Neuroscience, "C. Besta" Neurological Institute, Milano, Italy
| | - Angelo Labate
- Institute of Neurology, University "Magna Graecia", Catanzaro, Italy
| | | | - Cinzia Costa
- Neurology Unit, Department of Medicine, University of Perugia, Ospedale S. Maria della Misericordia, Perugia, Italy
| | - Ilaria Rivolta
- School of Medicine and Surgery, Milan Center for Neuroscience and Nanomedicine Center, University of Milano-Bicocca, Monza, Italy
| | - Cinzia Gellera
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, "C. Besta" Neurological Institute, Milano, Italy
| | - Tiziana Granata
- Dept. of Pediatric Neuroscience, "C. Besta" Neurological Institute, Milano, Italy
| | - Andrea Barbuti
- Dept. of Biosciences, The PaceLab, University of Milano, Milano, Italy.
| | - Dario DiFrancesco
- Dept. of Biosciences, The PaceLab, University of Milano, Milano, Italy
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27
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Campostrini G, Bonzanni M, Lissoni A, Bazzini C, Milanesi R, Vezzoli E, Francolini M, Baruscotti M, Bucchi A, Rivolta I, Fantini M, Severi S, Cappato R, Crotti L, J Schwartz P, DiFrancesco D, Barbuti A. The expression of the rare caveolin-3 variant T78M alters cardiac ion channels function and membrane excitability. Cardiovasc Res 2018; 113:1256-1265. [PMID: 28898996 PMCID: PMC5852518 DOI: 10.1093/cvr/cvx122] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 06/19/2017] [Indexed: 01/03/2023] Open
Abstract
Aims Caveolinopathies are a family of genetic disorders arising from alterations of the caveolin-3 (cav-3) gene. The T78M cav-3 variant has been associated with both skeletal and cardiac muscle pathologies but its functional contribution, especially to cardiac diseases, is still controversial. Here, we evaluated the effect of the T78M cav-3 variant on cardiac ion channel function and membrane excitability. Methods and results We transfected either the wild type (WT) or T78M cav-3 in caveolin-1 knock-out mouse embryonic fibroblasts and found by immunofluorescence and electron microscopy that both are expressed at the plasma membrane and form caveolae. Two ion channels known to interact and co-immunoprecipitate with the cav-3, hKv1.5 and hHCN4, interact also with T78M cav-3 and reside in lipid rafts. Electrophysiological analysis showed that the T78M cav-3 causes hKv1.5 channels to activate and inactivate at more hyperpolarized potentials and the hHCN4 channels to activate at more depolarized potentials, in a dominant way. In spontaneously beating neonatal cardiomyocytes, the expression of the T78M cav-3 significantly increased action potential peak-to-peak variability without altering neither the mean rate nor the maximum diastolic potential. We also found that in a small cohort of patients with supraventricular arrhythmias, the T78M cav-3 variant is more frequent than in the general population. Finally, in silico analysis of both sinoatrial and atrial cell models confirmed that the T78M-dependent changes are compatible with a pro-arrhythmic effect. Conclusion This study demonstrates that the T78M cav-3 induces complex modifications in ion channel function that ultimately alter membrane excitability. The presence of the T78M cav-3 can thus generate a susceptible substrate that, in concert with other structural alterations and/or genetic mutations, may become arrhythmogenic.
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Affiliation(s)
- Giulia Campostrini
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy
| | - Mattia Bonzanni
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy
| | - Alessio Lissoni
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy
| | - Claudia Bazzini
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy
| | - Raffaella Milanesi
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy
| | - Elena Vezzoli
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milano, Italy.,Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Maura Francolini
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milano, Italy
| | - Mirko Baruscotti
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy.,Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata (CIMMBA), Università degli Studi di Milano, Milano, Italy
| | - Annalisa Bucchi
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy
| | - Ilaria Rivolta
- Department of Health Science, Università di Milano Bicocca, Monza, Italy
| | - Matteo Fantini
- Cellular and Molecular Engineering Laboratory 'S. Cavalcanti', Department of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Bologna, Italy
| | - Stefano Severi
- Cellular and Molecular Engineering Laboratory 'S. Cavalcanti', Department of Electrical, Electronic and Information Engineering 'Guglielmo Marconi', University of Bologna, Bologna, Italy
| | - Riccardo Cappato
- Arrhythmia & Electrophysiology Unit II, Humanitas Gavazzeni Clinics, Bergamo, Italy.,Arrhythmia & Electrophysiology Research Center, IRCCS Humanitas Research Hospital, Rozzano (Milan), Italy
| | - Lia Crotti
- Center for Cardiac Arrhythmias of Genetic Origin, IRCCS Istituto Auxologico Italiano, Milano, Italy.,Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Peter J Schwartz
- Center for Cardiac Arrhythmias of Genetic Origin, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Dario DiFrancesco
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy.,Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata (CIMMBA), Università degli Studi di Milano, Milano, Italy
| | - Andrea Barbuti
- Department of Biosciences, The PaceLab, Università degli Studi di Milano, Milano, Italy.,Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata (CIMMBA), Università degli Studi di Milano, Milano, Italy
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28
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Sansoni V, Perego S, Vernillo G, Barbuti A, Merati G, La Torre A, Banfi G, Lombardi G. Effects of repeated sprints training on fracture risk-associated miRNA. Oncotarget 2018; 9:18029-18040. [PMID: 29719588 PMCID: PMC5915055 DOI: 10.18632/oncotarget.24707] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 02/25/2018] [Indexed: 12/22/2022] Open
Abstract
Repeated-sprint training (RS, short-duration sprints at supramaximal intensities interspersed with brief recoveries) is a time-saving metabolically effective strategy whose effects on bone are unknown. Bone metabolism is a finely regulated process profoundly affected by exercise as assayable by studying specific systemic (e.g., hormones, cytokines) and bone-derived molecules (e.g., bone markers, miRNAs). Aim of this study was to determine the effect of a 8-week repeated-sprint on circulating levels of fracture risk-associated miRNA. Blood was collected from 9 subjects performing RS 3 times/week (EXP) and 9 age-matched inactive controls (CTRL) before the start of the protocol (T0) and after 4 (T1) and 8 weeks (T2). The relative expression of miR-21-5p, miR-23a-3p, miR-24-3p, miR93-5p, miR-100-5p, miR-122-5p, miR-124-3p, miR-125b-5p, miR-148a-3p, miR-637 was assayed by real-time PCR by the 2−ΔΔCT method (housekeeping: miR-425-5p, miR-484). Serum concentrations of bone markers (DKK1, sclerostin, osteoprotegerin, osteocalcin, osteopontin), cytokines (IL-1β, TNFα), and metabolic hormones (leptin, insulin, PTH) were assayed by multiplex assay. miR-637 and miR-124-3p were undetectable. In CTRL miRNA levels remained unchanged. In EXP miR-21-5p remained unchanged. Compared to T0 miR-23a-3p and miR-24-3p were significantly decreased at T1 and T2, also compared to CTRL, miR-100 was significantly decreased at T2, miR-122-5p, miR-125-5p, and miR148a-3p were significantly decreased at T1, while miR-93-5p was significantly increased at T1. None of the metabolic hormones was affected by the intervention while, among the bone markers, DKK1, osteocalcin and sclerostin were slightly but significantly decreased. In conclusion, an 8-week repeated-sprint training downregulates the expression of circulating miRNA associated with fracture risk.
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Affiliation(s)
- Veronica Sansoni
- Laboratory of Experimental Biochemistry and Molecular Biology, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milan, Italy
| | - Silvia Perego
- Laboratory of Experimental Biochemistry and Molecular Biology, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milan, Italy
| | - Gianluca Vernillo
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Canada
| | - Andrea Barbuti
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy.,Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata, Università degli Studi di Milano, Milan, Italy
| | - Giampiero Merati
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Antonio La Torre
- Laboratory of Experimental Biochemistry and Molecular Biology, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milan, Italy.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Giuseppe Banfi
- Laboratory of Experimental Biochemistry and Molecular Biology, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milan, Italy
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Meraviglia V, Benzoni P, Landi S, Murano C, Langione M, Motta BM, Baratto S, Silipigni R, Di Segni M, Pramstaller PP, DiFrancesco D, Gazzerro E, Barbuti A, Rossini A. Generation of human induced pluripotent stem cells (EURACi001-A, EURACi002-A, EURACi003-A) from peripheral blood mononuclear cells of three patients carrying mutations in the CAV3 gene. Stem Cell Res 2018; 27:25-29. [DOI: 10.1016/j.scr.2017.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/14/2017] [Accepted: 12/16/2017] [Indexed: 11/25/2022] Open
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30
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Gambini E, Perrucci GL, Bassetti B, Spaltro G, Campostrini G, Lionetti MC, Pilozzi A, Martinelli F, Farruggia A, DiFrancesco D, Barbuti A, Pompilio G. Preferential myofibroblast differentiation of cardiac mesenchymal progenitor cells in the presence of atrial fibrillation. Transl Res 2018; 192:54-67. [PMID: 29245016 DOI: 10.1016/j.trsl.2017.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 04/21/2017] [Revised: 10/27/2017] [Accepted: 11/11/2017] [Indexed: 10/18/2022]
Abstract
Atrial fibrillation (AF) is characterized by electrical, contractile, and structural remodeling mediated by interstitial fibrosis. It has been shown that human cardiac mesenchymal progenitor cells (CMPCs) can be differentiated into endothelial, smooth muscle, and fibroblast cells. Here, we have investigated, for the first time, the contribution of CMPCs in the fibrotic process occurring in AF. As expected, right auricolae samples displayed significantly higher fibrosis in AF vs control (CTR) patients. In tissue samples of AF patients only, double staining for c-kit and the myofibroblast marker α-smooth muscle actin (α-SMA) was detected. The number of c-kit-positive CMPC was higher in atrial subepicardial regions of CTR than AF cells. AF-derived CMPC (AF-CMPC) and CTR-derived CMPC (Ctr-CMPC) were phenotypically similar, except for CD90 and c-kit, which were significantly more present in AF and CTR cells, respectively. Moreover, AF showed a lower rate of population doubling and fold enrichment vs Ctr-CMPC. When exogenously challenged with the profibrotic transforming growth factor-β1 (TGF-β1), AF-CMPC showed a significantly higher nuclear translocation of SMAD2 than Ctr-CMPC. In addition, TGF-β1 treatment induced the upregulation of COL1A1 and COL1A2 in AF-CMPC only. Further, both a marked production of soluble collagen and α-SMA upregulation have been observed in AF-CMPC only. Finally, electrophysiological studies showed that the inwardly rectifying potassium current (IK1) was evenly present in AF- and Ctr-CMPC in basal conditions and similarly disappeared after TGF-β1 exposure. All together, these data suggest that AF steers the resident atrial CMPC compartment toward an electrically inert profibrotic phenotype.
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Affiliation(s)
- Elisa Gambini
- Unità di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino-IRCCS, Milano, Italy.
| | - Gianluca Lorenzo Perrucci
- Unità di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino-IRCCS, Milano, Italy; Dipartimento di Scienze Cliniche e di Comunità, Università degli Studi di Milano, Milano, Italy
| | - Beatrice Bassetti
- Unità di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino-IRCCS, Milano, Italy
| | - Gabriella Spaltro
- Unità di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino-IRCCS, Milano, Italy
| | - Giulia Campostrini
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | - Maria Chiara Lionetti
- Unità di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino-IRCCS, Milano, Italy
| | - Alberto Pilozzi
- Dipartimento di Chirurgia Cardiovascolare, Centro Cardiologico Monzino-IRCCS, Milano, Italy
| | - Federico Martinelli
- Dipartimento di Chirurgia Cardiovascolare, Centro Cardiologico Monzino-IRCCS, Milano, Italy
| | - Andrea Farruggia
- Dipartimento di Chirurgia Cardiovascolare, Centro Cardiologico Monzino-IRCCS, Milano, Italy
| | - Dario DiFrancesco
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | - Andrea Barbuti
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | - Giulio Pompilio
- Unità di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino-IRCCS, Milano, Italy; Dipartimento di Scienze Cliniche e di Comunità, Università degli Studi di Milano, Milano, Italy; Dipartimento di Chirurgia Cardiovascolare, Centro Cardiologico Monzino-IRCCS, Milano, Italy
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31
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Sansoni V, Vernillo G, Perego S, Barbuti A, Merati G, Schena F, La Torre A, Banfi G, Lombardi G. Bone turnover response is linked to both acute and established metabolic changes in ultra-marathon runners. Endocrine 2017; 56:196-204. [PMID: 27422791 DOI: 10.1007/s12020-016-1012-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/31/2016] [Indexed: 12/18/2022]
Abstract
Bone and energy metabolisms regulation depends on a two-way street aimed at regulating energy utilization. Mountain ultra-marathons are highly demanding aerobic performances that deeply affect the whole body homeostasis. In this study we aimed to investigate and characterize the metabolic profile (in terms of hormones involved in energy metabolism), the inflammatory adipokines, and the bone turnover; in particular the osteocalcin-mediated response has been compared in experienced mountain ultra-marathons runners versus control subjects. Serum concentrations of specific markers of bone turnover (pro-collagen type I N-terminal propeptide, carboxylated/undercarboxylated osteocalcin), measured by enzyme-linked immunosorbent assay, and metabolic hormones (C-peptide, insulin, glucagon, glucagon-like peptide, gastric-inhibitory peptide, ghrelin, leptin, resistin, and visfatin), measured by fluorescent-based multiplex assay, were compared before and after a 65 km mountain ultra-marathons in 17 trained runners and 12 age-matched controls characterized by a low physical activity profile. After the mountain ultra-marathons, runners experienced a reduction in pro-collagen type I N-terminal propeptide, though it remained higher than in controls; while carboxylated osteocalcin remained unchanged. Among the metabolic hormones, only glucagon and leptin were different between runners and controls at rest. C-peptide and leptin decreased after the mountain ultra-marathons in runners; while glucagon, glucagon-like peptide 1, resistin, and visfatin were all increased. Uncarboxylated osteocalcin (and uncarboxylated/carboxylated osteocalcin ratio) was decreased and this highly correlated with insulin and C-peptide levels. In conditions of high energy expenditure, homeostasis is maintained at expenses of bone metabolism. Changes in the uncarboxylated osteocalcin clearly mark the global energy needs of the body.
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Affiliation(s)
- Veronica Sansoni
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - Gianluca Vernillo
- Department of Biomedical Sciences for Health, University of Milano, Milano, Italy
- CeRiSM, Research Centre "Sport, Mountain and Health", University of Verona, Rovereto, Italy
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Silvia Perego
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - Andrea Barbuti
- Department of Biosciences, Università degli Studi di Milano, Milano, Italy
- Interuniversity Centre for Molecular Medicine and Applied Biophysics (CIMMBA), Università degli Studi di Milano, Milano, Italy
| | - Giampiero Merati
- Department of Biomedical Sciences for Health, University of Milano, Milano, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Milano, Italy
| | - Federico Schena
- CeRiSM, Research Centre "Sport, Mountain and Health", University of Verona, Rovereto, Italy
- Department of Neurological and Movement Sciences, Università degli Studi di Verona, Verona, Italy
| | - Antonio La Torre
- Department of Biomedical Sciences for Health, University of Milano, Milano, Italy
| | - Giuseppe Banfi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- Vita-Salute San Raffaele University, Milano, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy.
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32
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Paina M, Piantoni C, Carnevali L, Frosio A, Bucchi A, Barbuti A, Sheng L, Yanyan W, Wang Y, DiFrancesco D, Baruscotti M. A Traditional Chinese Medicine Drug (TMYX) Controls Heart Rate by Modulation of the Pacemaker (F) Channels. Biophys J 2017. [DOI: 10.1016/j.bpj.2016.11.2565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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33
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Lombardi G, Vernillo G, Sansoni V, Perego S, Barbuti A, Merati G, Schena F, Banfi G, La Torre A. Plasminogen activator inhibitor-1 as a marker of cardiovascular response in professional mountain ultra-marathon runners. ACTA ACUST UNITED AC 2017; 55:e7-e9. [DOI: 10.1515/cclm-2016-0295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 05/07/2016] [Indexed: 11/15/2022]
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34
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Barbuti A, Benzoni P, Campostrini G, Dell'Era P. Human derived cardiomyocytes: A decade of knowledge after the discovery of induced pluripotent stem cells. Dev Dyn 2016; 245:1145-1158. [DOI: 10.1002/dvdy.24455] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/05/2016] [Accepted: 05/05/2016] [Indexed: 12/27/2022] Open
Affiliation(s)
- Andrea Barbuti
- Department of Biosciences; Università degli Studi di Milano; Milan Italy
| | - Patrizia Benzoni
- Department of Biosciences; Università degli Studi di Milano; Milan Italy
| | - Giulia Campostrini
- Department of Biosciences; Università degli Studi di Milano; Milan Italy
| | - Patrizia Dell'Era
- Cellular Fate Reprogramming Unit, Department of Molecular and Translational Medicine; Università degli Studi di Brescia; Brescia Italy
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35
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Re A, Nanni S, Aiello A, Granata S, Colussi C, Campostrini G, Spallotta F, Mattiussi S, Pantisano V, D'Angelo C, Biroccio A, Rossini A, Barbuti A, DiFrancesco D, Trimarchi F, Pontecorvi A, Gaetano C, Farsetti A. Anacardic acid and thyroid hormone enhance cardiomyocytes production from undifferentiated mouse ES cells along functionally distinct pathways. Endocrine 2016; 53:681-8. [PMID: 26547215 DOI: 10.1007/s12020-015-0751-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 09/19/2015] [Indexed: 10/22/2022]
Abstract
The epigenetics of early commitment to embryonal cardiomyocyte is poorly understood. In this work, we compared the effect of thyroid hormone and that of anacardic acid, a naturally occurring histone acetylase inhibitor, or both in combination, on mouse embryonic stem cells (mES) differentiating into embryonal cardiomyocyte by embryoid bodies (EBs) formation. Although the results indicated that anacardic acid (AA) and thyroid hormone were both efficient in promoting cardiomyocyte differentiation, we noticed that a transient exposure of mES to AA alone was sufficient to enlarge the beating areas of EBs compared to those of untreated controls. This effect was associated with changes in the chromatin structure at the promoters of specific cardiomyogenic genes. Among them, a rapid induction of the transcription factor Castor 1 (CASZ1), important for cardiomyocytes differentiation and maturation during embryonic development, was observed in the presence of AA. In contrast, thyroid hormone (T 3) was more effective in stimulating spontaneous firing, thus suggesting a role in the production of a population of cardiomyocyte with pacemaker properties. In conclusion, AA and thyroid hormone both enhanced cardiomyocyte formation along in apparently distinct pathways.
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Affiliation(s)
- Agnese Re
- National Research Council (CNR), Institute of Cell Biology and Neurobiology, 00143, Rome, Italy
| | - Simona Nanni
- Institute of Medical Pathology, Catholic University, Rome, Italy
| | - Aurora Aiello
- National Research Council (CNR), Institute of Cell Biology and Neurobiology, 00143, Rome, Italy
| | - Serena Granata
- Institute of Medical Pathology, Catholic University, Rome, Italy
| | - Claudia Colussi
- National Research Council (CNR), Institute of Cell Biology and Neurobiology, 00143, Rome, Italy
| | - Giulia Campostrini
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Francesco Spallotta
- Division of Cardiovascular Epigenetics, Internal Medicine Clinic III, Goethe University Frankfurt, 60590, Frankfurt, Germany
| | - Stefania Mattiussi
- National Research Council (CNR), Institute of Cell Biology and Neurobiology, 00143, Rome, Italy
| | | | - Carmen D'Angelo
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Annamaria Biroccio
- Experimental Chemotherapy Laboratory, Regina Elena National Cancer Institute, Rome, Italy
| | - Alessandra Rossini
- Bolzano Center for Biomedicine (Affiliated Institute of the University of Lübeck), European Academy Bozen/Bolzano (EURAC), Bolzano, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Andrea Barbuti
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Dario DiFrancesco
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Francesco Trimarchi
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | | | - Carlo Gaetano
- Division of Cardiovascular Epigenetics, Internal Medicine Clinic III, Goethe University Frankfurt, 60590, Frankfurt, Germany.
| | - Antonella Farsetti
- National Research Council (CNR), Institute of Cell Biology and Neurobiology, 00143, Rome, Italy.
- Internal Medicine Clinic III, Goethe University Frankfurt, Frankfurt, Germany.
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Costantino S, Bonzanni M, Legchenko E, Paneni F, Mitchell K, Berrino L, Schwarzwald C, Volpe M, Luscher TF, Cosentino F, Napoli A, Landi S, Bucchi A, Vernillo G, Baruscotti M, La Torre A, Difrancesco D, Barbuti A, Kueffner R, Hansmann G. Epigenetics in Cardiac Health and Disease225miR-218 and mi-R34a drive persistent myocardial oxidative stress by targeting chromatin remodelers DNMT3b and SIRT1: new mechanistic insights in diabetic cardiomyopathy226Effects of miRNAs modulated by endurance training on cardiomyocyte excitability227Differential transcriptome and microRNA expression signatures in the healthy heart (RV vs. LV) and the failing, pressure-overloaded right ventricle (SuHx model). Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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37
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Gowran A, Kulikova T, Lewis FC, Foldes G, Fuentes L, Viiri LE, Spinelli V, Costa A, Perbellini F, Sid-Otmane C, Bax NAM, Pekkanen-Mattila M, Schiano C, Chaloupka A, Forini F, Sarkozy M, De Jager SCA, Vajen T, Glezeva N, Lee HW, Golovkin A, Kucera T, Musikhina NA, Korzhenkov NP, Santuchi MDEC, Munteanu D, Garcia RG, Ang R, Usui S, Kamilova U, Jumeau C, Aberg M, Kostina DA, Brandt MM, Muntean D, Lindner D, Sadaba R, Bacova B, Nikolov A, Sedmera D, Ryabov V, Neto FP, Lynch M, Portero V, Kui P, Howarth FC, Gualdoni A, Prorok J, Diolaiuti L, Vostarek F, Wagner M, Abela MA, Nebert C, Xiang W, Kloza M, Maslenko A, Grechanyk M, Bhattachariya A, Morawietz H, Babaeva AR, Martinez Sanchez SM, Krychtiuk KA, Starodubova J, Fiorelli S, Rinne P, Ozkaramanli Gur D, Hofbauer T, Starodubova J, Stellos K, Pinon P, Tsoref O, Thaler B, Fraga-Silva RA, Fuijkschot WW, Shaaban MNS, Matthaeus C, Deluyker D, Scardigli M, Zahradnikova A, Dominguez A, Kondrat'eva D, Sosorburam T, Murarikova M, Duerr GD, Griecsova L, Portnichenko VI, Smolina N, Duicu OANAM, Elder JM, Zaglia T, Lorenzon A, Ruperez C, Woudstra L, Suffee N, De Lucia C, Tsoref O, Russell-Hallinan A, Menendez-Montes I, Kapelko VI, Emmens RW, Hetman O, Van Der Laarse WJ, Goncharov S, Adao R, Huisamen B, Sirenko O, Kamilova U, Nassiri I, Tserendavaa SUMIYA, Yushko K, Baldan Martin M, Falcone C, Vigorelli V, Nigro P, Pompilio G, Stepanova O, Valikhov M, Samko A, Masenko V, Tereschenko S, Teoh T, Domenjo-Vila E, Theologou T, Field M, Awad W, Yasin M, Nadal-Ginard B, Ellison-Hughes GM, Hellen N, Vittay O, Harding SE, Gomez-Cid L, Fernandez-Santos ME, Suarez-Sancho S, Plasencia V, Climent A, Sanz-Ruiz R, Hedhammar M, Atienza F, Fernandez-Aviles F, Kiamehr M, Oittinen M, Viiri KM, Kaikkonen M, Aalto-Setala K, Diolaiuti L, Laurino A, Sartiani L, Vona A, Zanardelli M, Cerbai E, Failli P, Hortigon-Vinagre MP, Van Der Heyden M, Burton FL, Smith GL, Watson S, Scigliano M, Tkach S, Alayoubi S, Harding SE, Terracciano CM, Ly HQ, Mauretti A, Van Marion MH, Van Turnhout MC, Van Der Schaft DWJ, Sahlgren CM, Goumans MJ, Bouten CVC, Vuorenpaa H, Penttinen K, Sarkanen R, Ylikomi T, Heinonen T, Aalto-Setala K, Grimaldi V, Aprile M, Esposito R, Maiello C, Soricelli A, Colantuoni V, Costa V, Ciccodicola A, Napoli C, Rowe GC, Johnson K, Arany ZP, Del Monte F, D'aurizio R, Kusmic C, Nicolini G, Baumgart M, Groth M, Ucciferri N, Iervasi G, Pitto L, Pipicz M, Gaspar R, Siska A, Foldesi I, Kiss K, Bencsik P, Thum T, Batkai S, Csont T, Haan JJ, Bosch L, Brans MAD, Van De Weg SM, Deddens JC, Lee SJ, Sluijter JPG, Pasterkamp G, Werner I, Projahn D, Staudt M, Curaj A, Soenmez TT, Simsekyilmaz S, Hackeng TM, Von Hundelshausen P, Koenen RR, Weber C, Liehn EA, Santos-Martinez M, Medina C, Watson C, Mcdonald K, Gilmer J, Ledwidge M, Song SH, Lee MY, Park MH, Choi JC, Ahn JH, Park JS, Oh JH, Choi JH, Lee HC, Cha KS, Hong TJ, Kudryavtsev I, Serebryakova M, Malashicheva A, Shishkova A, Zhiduleva E, Moiseeva O, Durisova M, Blaha M, Melenovsky V, Pirk J, Kautzner J, Petelina TI, Gapon LI, Gorbatenko EA, Potolinskaya YV, Arkhipova EV, Solodenkova KS, Osadchuk MA, Dutra MF, Oliveira FCB, Silva MM, Passos-Silva DG, Goncalves R, Santos RAS, Da Silva RF, Gavrilescu CM, Paraschiv CM, Manea P, Strat LC, Gomez JMG, Merino D, Hurle MA, Nistal JF, Aires A, Cortajarena AL, Villar AV, Abramowitz J, Birnbaumer L, Gourine AV, Tinker A, Takamura M, Takashima S, Inoue O, Misu H, Takamura T, Kaneko S, Alieva TOHIRA, Mougenot N, Dufilho M, Hatem S, Siegbahn A, Kostina AS, Uspensky VE, Moiseeva OM, Kostareva AA, Malashicheva AB, Van Dijk CGM, Chrifi I, Verhaar MC, Duncker DJ, Cheng C, Sturza A, Petrus A, Duicu O, Kiss L, Danila M, Baczko I, Jost N, Gotzhein F, Schon J, Schwarzl M, Hinrichs S, Blankenberg S, Volker U, Hammer E, Westermann D, Martinez-Martinez E, Arrieta V, Fernandez-Celis A, Jimenez-Alfaro L, Melero A, Alvarez-Asiain V, Cachofeiro V, Lopez-Andres N, Tribulova N, Wallukat G, Knezl V, Radosinska J, Barancik M, Tsinlikov I, Tsinlikova I, Nicoloff G, Blazhev A, Pesevski Z, Kvasilova A, Stopkova T, Eckhardt A, Buffinton CM, Nanka O, Kercheva M, Suslova T, Gusakova A, Ryabova T, Markov V, Karpov R, Seemann H, Alcantara TC, Santuchi MDEC, Fonseca SG, Da Silva RF, Barallobre-Barreiro J, Oklu R, Fava M, Baig F, Yin X, Albadawi H, Jahangiri M, Stoughton J, Mayr M, Podliesna SP, Veerman CCV, Verkerk AOV, Klerk MK, Lodder EML, Mengarelli IM, Bezzina CRB, Remme CAR, Takacs H, Polyak A, Morvay N, Lepran I, Tiszlavicz L, Nagy N, Ordog B, Farkas A, Forster T, Varro A, Farkas AS, Jayaprakash P, Parekh K, Ferdous Z, Oz M, Dobrzynski H, Adrian TE, Landi S, Bonzanni M, D'souza A, Boyett M, Bucchi A, Baruscotti M, Difrancesco D, Barbuti A, Kui P, Takacs H, Oravecz K, Hezso T, Polyak A, Levijoki J, Pollesello P, Koskelainen T, Otsomaa L, Farkas AS, Papp JGY, Varro A, Toth A, Acsai K, Dini L, Mazzoni L, Sartiani L, Cerbai E, Mugelli A, Svatunkova J, Sedmera D, Deffge C, Baer C, Weinert S, Braun-Dullaeus RC, Herold J, Cassar AC, Zahra GZ, Pllaha EP, Dingli PD, Montefort SM, Xuereb RGX, Aschacher T, Messner B, Eichmair E, Mohl W, Reglin B, Rong W, Nitzsche B, Maibier M, Guimaraes P, Ruggeri A, Secomb TW, Pries AR, Baranowska-Kuczko M, Karpinska O, Kusaczuk M, Malinowska B, Kozlowska H, Demikhova N, Vynnychenko L, Prykhodko O, Grechanyk N, Kuryata A, Cottrill KA, Du L, Bjorck HM, Maleki S, Franco-Cereceda A, Chan SY, Eriksson P, Giebe S, Cockcroft N, Hewitt K, Brux M, Brunssen C, Tarasov AA, Davidov SI, Reznikova EA, Tapia Abellan A, Angosto Bazarra D, Pelegrin Vivancos P, Montoro Garcia S, Kastl SP, Pongratz T, Goliasch G, Gaspar L, Maurer G, Huber K, Dostal E, Pfaffenberger S, Oravec S, Wojta J, Speidl WS, Osipova I, Sopotova I, Eligini S, Cosentino N, Marenzi G, Tremoli E, Rami M, Ring L, Steffens S, Gur O, Gurkan S, Mangold A, Scherz T, Panzenboeck A, Staier N, Heidari H, Mueller J, Lang IM, Osipova I, Sopotova I, Gatsiou A, Stamatelopoulos K, Perisic L, John D, Lunella FF, Eriksson P, Hedin U, Zeiher A, Dimmeler S, Nunez L, Moure R, Marron-Linares G, Flores X, Aldama G, Salgado J, Calvino R, Tomas M, Bou G, Vazquez N, Hermida-Prieto M, Vazquez-Rodriguez JM, Amit U, Landa N, Kain D, Tyomkin D, David A, Leor J, Hohensinner PJ, Baumgartner J, Krychtiuk KA, Maurer G, Huber K, Baik N, Miles LA, Wojta J, Seeman H, Montecucco F, Da Silva AR, Costa-Fraga FP, Anguenot L, Mach FP, Santos RAS, Stergiopulos N, Da Silva RF, Kupreishvili K, Vonk ABA, Smulders YM, Van Hinsbergh VWM, Stooker W, Niessen HWM, Krijnen PAJ, Ashmawy MM, Salama MA, Elamrosy MZ, Juettner R, Rathjen FG, Bito V, Crocini C, Ferrantini C, Gabbrielli T, Silvestri L, Coppini R, Tesi C, Cerbai E, Poggesi C, Pavone FS, Sacconi L, Mackova K, Zahradnik I, Zahradnikova A, Diaz I, Sanchez De Rojas De Pedro E, Hmadcha K, Calderon Sanchez E, Benitah JP, Gomez AM, Smani T, Ordonez A, Afanasiev SA, Egorova MV, Popov SV, Wu Qing P, Cheng X, Carnicka S, Pancza D, Jasova M, Kancirova I, Ferko M, Ravingerova T, Wu S, Schneider M, Marggraf V, Verfuerth L, Frede S, Boehm O, Dewald O, Baumgarten G, Kim SC, Farkasova V, Gablovsky I, Bernatova I, Ravingerova T, Nosar V, Portnychenko A, Drevytska T, Mankovska I, Gogvadze V, Sejersen T, Kostareva A, Sturza A, Wolf A, Privistirescu A, Danila M, Muntean D, O ' Gara P, Sanchez-Alonso JL, Harding SE, Lyon AR, Prando V, Pianca N, Lo Verso F, Milan G, Pesce P, Sandri M, Mongillo M, Beffagna G, Poloni G, Dazzo E, Sabatelli P, Doliana R, Polishchuk R, Carnevale D, Lembo G, Bonaldo P, Braghetta P, Rampazzo A, Cairo M, Giralt M, Villarroya F, Planavila A, Biesbroek PS, Emmens RWE, Juffermans LJM, Van Der Wall AC, Van Rossum AC, Niessen JWM, Krijnen PAJ, Moor Morris T, Dilanian G, Farahmand P, Puceat M, Hatem S, Gambino G, Petraglia L, Elia A, Komici K, Femminella GD, D'amico ML, Pagano G, Cannavo A, Liccardo D, Koch WJ, Nolano M, Leosco D, Ferrara N, Rengo G, Amit U, Landa N, Kain D, Leor J, Neary R, Shiels L, Watson C, Baugh J, Palacios B, Escobar B, Alonso AV, Guzman G, Ruiz-Cabello J, Jimenez-Borreguero LJ, Martin-Puig S, Lakomkin VL, Lukoshkova EV, Abramov AA, Gramovich VV, Vyborov ON, Ermishkin VV, Undrovinas NA, Shirinsky VP, Smilde BJ, Woudstra L, Fong Hing G, Wouters D, Zeerleder S, Murk JL, Van Ham SM, Heymans S, Juffermans LJM, Van Rossum AC, Niessen JWM, Krijnen PAJ, Krakhmalova O, Van Groen D, Bogaards SJP, Schalij I, Portnichenko GV, Tumanovska LV, Goshovska YV, Lapikova-Bryhinska TU, Nagibin VS, Dosenko VE, Mendes-Ferreira P, Maia-Rocha C, Santos-Ribeiro D, Potus F, Breuils-Bonnet S, Provencher S, Bonnet S, Rademaker M, Leite-Moreira AF, Bras-Silva C, Lopes J, Kuryata O, Lusynets T, Alikulov I, Nourddine M, Azzouzi L, Habbal R, Tserendavaa SUMIYA, Enkhtaivan ODKHUU, Enkhtaivan ODKHUU, Shagdar ZORIGO, Shagdar ZORIGO, Malchinkhuu MUNKHZ, Malchinkhuu MUNLHZ, Koval S, Starchenko T, Mourino-Alvarez L, Gonzalez-Calero L, Sastre-Oliva T, Lopez JA, Vazquez J, Alvarez-Llamas G, Ruilope LUISM, De La Cuesta F, Barderas MG, Bozzini S, D'angelo A, Pelissero G. Poster session 3Cell growth, differentiation and stem cells - Heart511The role of the endocannabinoid system in modelling muscular dystrophy cardiac disease with induced pluripotent stem cells.512An emerging role of T lymphocytes in cardiac regenerative processes in heart failure due to dilated cardiomyopathy513Canonical wnt signaling reverses the ‘aged/senescent’ human endogenous cardiac stem cell phenotype514Hippo signalling modulates survival of human induced pluripotent stem cell-derived cardiomyocytes515Biocompatibility of mesenchymal stem cells with a spider silk matrix and its potential use as scaffold for cardiac tissue regeneration516A snapshot of genome-wide transcription in human induced pluripotent stem cell-derived hepatocyte-like cells (iPSC-HLCs)517Can NOS/sGC/cGK1 pathway trigger the differentiation and maturation of mouse embryonic stem cells (ESCs)?518Introduction of external Ik1 to human-induced pluripotent stem cell-derived cardiomyocytes via Ik1-expressing HEK293519Cell therapy of the heart studied using adult myocardial slices in vitro520Enhancement of the paracrine potential of human adipose derived stem cells when cultured as spheroid bodies521Mechanosensitivity of cardiomyocyte progenitor cells: the strain response in 2D and 3D environments522The effect of the vascular-like network on the maturation of the human induced pluripotent stem cell derived cardiomyocytes.Transcriptional control and RNA species - Heart525Gene expression regulation in heart failure: from pathobiology to bioinformatics526Human transcriptome in idiopathic dilated cardiomyopathy - a novel high throughput screening527A high-throghput approach unveils putative miRNA-mediated mitochondria-targeted cardioprotective circuits activated by T3 in the post ischemia reperfusion setting528The effect of uraemia on the expression of miR-212/132 and the calcineurin pathway in the rat heartCytokines and cellular inflammation - Heart531Lack of growth differentiation factor 15 aggravates adverse cardiac remodeling upon pressure-overload in mice532Blocking heteromerization of platelet chemokines ccl5 and cxcl4 reduces inflammation and preserves heart function after myocardial infarction533Is there an association between low-dose aspirin use and clinical outcome in HFPEF? Implications of modulating monocyte function and inflammatory mediator release534N-terminal truncated intracellular matrix metalloproteinase-2 expression in diabetic heart.535Expression of CD39 and CD73 on peripheral T-cell subsets in calcific aortic stenosis536Mast cells in the atrial myocardium of patients with atrial fibrillation: a comparison with patients in sinus rhythm539Characteristics of the inflammatory response in patients with coronary artery disease and arterial hypertension540Pro-inflammatory cytokines as cardiovascular events predictors in rheumatoid arthritis and asymptomatic atherosclerosis541Characterization of FVB/N murinic bone marrow-derived macrophage polarization into M1 and M2 phenotypes542The biological expression and thoracic anterior pain syndromeSignal transduction - Heart545The association of heat shock protein 90 and TGFbeta receptor I is involved in collagen production during cardiac remodelling in aortic-banded mice546Loss of the inhibitory GalphaO protein in the rostral ventrolateral medulla of the brainstem leads to abnormalities in cardiovascular reflexes and altered ventricular excitablitiy547Selenoprotein P regulates pressure overload-induced cardiac remodeling548Study of adenylyl cyclase activity in erythrocyte membranes in patients with chronic heart failure549Direct thrombin inhibitors inhibit atrial myocardium hypertrophy in a rat model of heart failure and atrial remodeling550Tissue factor / FVIIa transactivates the IGF-1R by a Src-dependent phosphorylation of caveolin-1551Notch signaling is differently altered in endothelial and smooth muscle cells of ascending aortic aneurysm patients552Frizzled 5 expression is essential for endothelial proliferation and migration553Modulation of vascular function and ROS production by novel synthetic benzopyran analogues in diabetes mellitusExtracellular matrix and fibrosis - Heart556Cardiac fibroblasts as inflammatory supporter cells trigger cardiac inflammation in heart failure557A role for galectin-3 in calcific aortic valve stenosis558Omega-3 polyunsaturated fatty acids- can they decrease risk for ventricular fibrillation?559Serum levels of elastin derived peptides and circulating elastin-antielastin immune complexes in sera of patients with coronary artery disease560Endocardial fibroelastosis is secondary to hemodynamic alterations in the chick model of hypoplastic left heart syndrome561Dynamics of serum levels of matrix metalloproteinases in primary anterior STEMI patients564Deletion of the alpha-7 nicotinic acetylcholine receptor changes the vascular remodeling induced by transverse aortic constriction in mice.565Extracellular matrix remodelling in response to venous hypertension: proteomics of human varicose veinsIon channels, ion exchangers and cellular electrophysiology - Heart568Microtubule-associated protein RP/EB family member 1 modulates sodium channel trafficking and cardiac conduction569Investigation of electrophysiological abnormalities in a rabbit athlete's heart model570Upregulation of expression of multiple genes in the atrioventricular node of streptozotocin-induced diabetic rat571miR-1 as a regulator of sinoatrial rhythm in endurance training adaptation572Selective sodium-calcium exchanger inhibition reduces myocardial dysfunction associated with hypokalaemia and ventricular fibrillation573Effect of racemic and levo-methadone on action potential of human ventricular cardiomyocytes574Acute temperature effects on the chick embryonic heart functionVasculogenesis, angiogenesis and arteriogenesis577Clinical improvement and enhanced collateral vessel growth after monocyte transplantation in mice578The role of HIF-1 alpha, VEGF and obstructive sleep apnoea in the development of coronary collateral circulation579Initiating cardiac repair with a trans-coronary sinus catheter intervention in an ischemia/reperfusion porcine animal model580Early adaptation of pre-existing collaterals after acute arteriolar and venular microocclusion: an in vivo study in chick chorioallantoic membraneEndothelium583EDH-type responses to the activator of potassium KCa2.3 and KCa3.1 channels SKA-31 in the small mesenteric artery from spontaneously hypertensive rats584The peculiarities of endothelial dysfunction in patients with chronic renocardial syndrome585Endothelial dysfunction, atherosclerosis of the carotid arteries and level of leptin in patient with coronary heart disease in combination with hepatic steatosis depend from body mass index.586Role of non-coding RNAs in thoracic aortic aneurysm associated with bicuspid aortic valve587Cigarette smoke extract abrogates atheroprotective effects of high laminar flow on endothelial function588The prognostic value of anti-connective tissue antibodies in coronary heart disease and asymptomatic atherosclerosis589Novel potential properties of bioactive peptides from spanish dry-cured ham on the endothelium.Lipids592Intermediate density lipoprotein is associated with monocyte subset distribution in patients with stable atherosclerosis593The characteristics of dyslipidemia in rheumatoid arthritisAtherosclerosis596Macrophages differentiated in vitro are heterogeneous: morphological and functional profile in patients with coronary artery disease597Palmitoylethanolamide promotes anti-inflammatory phenotype of macrophages and attenuates plaque formation in ApoE-/- mice598Amiodarone versus esmolol in the perioperative period: an in vitro study of coronary artery bypass grafts599BMPRII signaling of fibrocytes, a mesenchymal progenitor cell population, is increased in STEMI and dyslipidemia600The characteristics of atherogenesis and systemic inflammation in rheumatoid arthritis601Role of adenosine-to-inosine RNA editing in human atherosclerosis602Presence of bacterial DNA in thrombus aspirates of patients with myocardial infarction603Novel E-selectin binding polymers reduce atherosclerotic lesions in ApoE(-/-) mice604Differential expression of the plasminogen receptor Plg-RKT in monocyte and macrophage subsets - possible functional consequences in atherogenesis605Apelin-13 treatment enhances the stability of atherosclerotic plaques606Mast cells are increased in the media of coronary lesions in patients with myocardial infarction and favor atherosclerotic plaque instability607Association of neutrophil to lymphocyte ratio with presence of isolated coronary artery ectasiaCalcium fluxes and excitation-contraction coupling610The coxsackie- and adenovirus receptor (CAR) regulates calcium homeostasis in the developing heart611HMW-AGEs application acutely reduces ICaL in adult cardiomyocytes612Measuring electrical conductibility of cardiac T-tubular systems613Postnatal development of cardiac excitation-contraction coupling in rats614Role of altered Ca2+ homeostasis during adverse cardiac remodeling after ischemia/reperfusion615Experimental study of sarcoplasmic reticulum dysfunction and energetic metabolism in failing myocardium associated with diabetes mellitusHibernation, stunning and preconditioning618Volatile anesthetic preconditioning attenuates ischemic-reperfusion injury in type II diabetic patients undergoing on-pump heart surgery619The effect of early and delayed phase of remote ischemic preconditioning on ischemia-reperfusion injury in the isolated hearts of healthy and diabetic rats620Post-conditioning with 1668-thioate leads to attenuation of the inflammatory response and remodeling with less fibrosis and better left ventricular function in a murine model of myocardial infarction621Maturation-related changes in response to ischemia-reperfusion injury and in effects of classical ischemic preconditioning and remote preconditioningMitochondria and energetics624Phase changes in myocardial mitochondrial respiration caused by hypoxic preconditioning or periodic hypoxic training625Desmin mutations depress mitochondrial metabolism626Methylene blue modulates mitochondrial function and monoamine oxidases-related ROS production in diabetic rat hearts627Doxorubicin modulates the real-time oxygen consumption rate of freshly isolated adult rat and human ventricular cardiomyocytesCardiomyopathies and fibrosis630Effects of genetic or pharmacologic inhibition of the ubiquitin/proteasome system on myocardial proteostasis and cardiac function631Suppression of Wnt signalling in a desmoglein-2 transgenic mouse model for arrhythmogenic cardiomyopathy632Cold-induced cardiac hypertrophy is reversed after thermo-neutral deacclimatization633CD45 is a sensitive marker to diagnose lymphocytic myocarditis in endomyocardial biopsies of living patients and in autopsies634Atrial epicardial adipose tissue derives from epicardial progenitors635Caloric restriction ameliorates cardiac function, sympathetic cardiac innervation and beta-adrenergic receptor signaling in an experimental model of post-ischemic heart failure636High fat diet improves cardiac remodelling and function after extensive myocardial infarction in mice637Epigenetic therapy reduces cardiac hypertrophy in murine models of heart failure638Imbalance of the VHL/HIF signaling in WT1+ Epicardial Progenitors results in coronary vascular defects, fibrosis and cardiac hypertrophy639Diastolic dysfunction is the first stage of the developing heart failure640Colchicine aggravates coxsackievirus B3 infection in miceArterial and pulmonary hypertension642Osteopontin as a marker of pulmonary hypertension in patients with coronary heart disease combined with chronic obstructive pulmonary disease643Myocardial dynamic stiffness is increased in experimental pulmonary hypertension partly due to incomplete relaxation644Hypotensive effect of quercetin is possibly mediated by down-regulation of immunotroteasome subunits in aorta of spontaneously hypertensive rats645Urocortin-2 improves right ventricular function and attenuates experimental pulmonary arterial hypertension646A preclinical evaluation of the anti-hypertensive properties of an aqueous extract of Agathosma (Buchu)Biomarkers648The adiponectin level in hypertensive females with rheumatoid arthritis and its relationship with subclinical atherosclerosis649Markers for identification of renal dysfunction in the patients with chronic heart failure650cardio-hepatic syndromes in chronic heart failure: North Africa profile651To study other biomarkers that assess during myocardial infarction652Interconnections of apelin levels with parameters of lipid metabolism in hypertension patients653Plasma proteomics in hypertension: prediction and follow-up of albuminuria during chronic renin-angiotensin system suppression654Soluble RAGE levels in plasma of patients with cerebrovascular events. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Andre E, Yaniz-Galende E, Hamilton C, Dusting GJ, Hellen N, Poulet CE, Diez Cunado M, Smits AM, Lowe V, Eckardt D, Du Pre B, Sanz Ruiz R, Moerkamp AT, Tribulova N, Smani T, Liskova YV, Greco S, Guzzolino E, Franco D, Lozano-Velasco E, Knorr M, Pavoine C, Bukowska A, Van Linthout S, Miteva K, Sulzgruber P, Latet SC, Portnychenko A, Cannavo A, Kamilova U, Sagach VF, Santin Y, Octavia Y, Haller PM, Octavia Y, Rubies C, Dei Zotti F, Wong KHK, Gonzalez Miqueo A, Kruithof BPT, Kadur Nagaraju C, Shaposhnikova Y, Songia P, Lindner D, Wilson C, Benzoni P, Fabbri A, Campostrini G, Jorge E, Casini S, Mengarelli I, Nikolov A, Bublikov DS, Kheloufi M, Rubies C, Walker RE, Van Dijk RA, Posthuma JJ, Dumitriu IE, Karshovska E, Sakic A, Alexandru N, Martin-Lorenzo M, Molica F, Taylor RF, Mcarthur L, Crocini C, Matsuyama TA, Mazzoni L, Lin WK, Owen TJ, Scigliano M, Sheehan A, Bezerra Gurgel AR, Bromage DI, Kiss A, Ikeda G, Pickard JMJ, Wirth G, Casos K, Khudiakov A, Nistal JF, Ferrantini C, Park SJ, Di Maggio S, Gentile F, Dini L, Buyandelger B, Larrasa-Alonso J, Schirmer I, Chin SH, Cimiotti D, Martini H, Hohensinner PJ, Garabito M, Zeni F, Licholai S, De Bortoli M, Sivitskaya L, Viczenczova C, Rainer PP, Smith LE, Suna G, Gambardella J, Cozma A, De Gonzalo Calvo D, Scoditti E, Clark BJ, Mansfield C, Eckardt D, Gomez L, Llucia-Valldeperas A, De Pauw A, Porporato P, Bouzin C, Draoui N, Sonveaux P, Balligand JL, Mougenot N, Formicola L, Nadaud S, Dierick F, Hajjar RJ, Marazzi G, Sassoon D, Hulot JS, Zamora VR, Burton FL, Macquaide N, Smith GL, Hernandez D, Sivakumaran P, Millard R, Wong RCB, Pebay A, Shepherd RK, Lim SY, Owen T, Jabbour RJ, Kloc M, Kodagoda T, Denning C, Harding SE, Ramos S, Terracciano C, Gorelik J, Wei K, Bushway P, Ruiz-Lozano P, Mercola M, Moerkamp AT, Vegh AMD, Dronkers E, Lodder K, Van Herwaarden T, Goumans MJ, Pellet-Many C, Zachary I, Noack K, Bosio A, Feyen DAM, Demkes EJ, Dierickx PJ, Doevendans PA, Vos MA, Van Veen AAB, Van Laake LW, Fernandez Santos ME, Suarez Sancho S, Fuentes Arroyo L, Plasencia Martin V, Velasco Sevillano P, Casado Plasencia A, Climent AM, Guillem M, Atienza Fernandez F, Fernandez-Aviles F, Dingenouts CKE, Lodder K, Kruithof BPT, Van Herwaarden T, Vegh AMD, Goumans MJ, Smits AM, Knezl V, Szeiffova Bacova B, Egan Benova T, Viczenczova C, Goncalvesova E, Slezak J, Calderon-Sanchez E, Diaz I, Ordonez A, Salikova SP, Zaccagnini G, Voellenkle C, Sadeghi I, Maimone B, Castelvecchio S, Gaetano C, Menicanti L, Martelli F, Hatcher C, D'aurizio R, Groth M, Baugmart M, Mercatanti A, Russo F, Mariani L, Magliaro C, Pitto L, Lozano-Velasco E, Jodar-Garcia A, Galiano-Torres J, Lopez-Navarrete I, Aranega A, Wagensteen R, Quesada A, Aranega A, Franco D, Finger S, Karbach S, Kossmann S, Muenzel T, Wenzel P, Keck M, Mougenot N, Favier S, Fuand A, Atassi F, Barbier C, Lompre AM, Hulot JS, Nikonova Y, Pluteanu F, Kockskaemper J, Chilukoti RK, Wolke C, Lendeckel U, Gardemann A, Goette A, Miteva K, Pappritz K, Mueller I, El-Shafeey M, Ringe J, Tschoepe C, Pappritz K, El-Shafeey M, Ringe J, Tschoepe C, Van Linthout S, Koller L, Richter B, Blum S, Koprak M, Huelsmann M, Pacher R, Goliasch G, Wojta J, Niessner A, Van Herck PL, Claeys MJ, Haine SE, Lenders GD, Miljoen HP, Segers VF, Vandendriescche TR, Hoymans VY, Vrints CJ, Lapikova-Bryhinska T, Gurianova V, Portnichenko H, Vasylenko M, Zapara Y, Portnichenko V, Liccardo D, Lymperopoulos A, Santangelo M, Leosco D, Koch WJ, Ferrara N, Rengo G, Alieva T, Rasulova Z, Masharipova D, Dorofeyeva NA, Drachuk KO, Sicard P, Yucel Y, Dutaur M, Vindis C, Parini A, Mialet-Perez J, Van Deel ED, De Boer M, De Waard MC, Duncker DJ, Nagel F, Inci M, Santer D, Hallstroem S, Podesser BK, Kararigas G, De Boer M, Kietadisorn R, Swinnen M, Duimel H, Verheyen F, Chrifi I, Brandt MM, Cheng C, Janssens S, Moens AL, Duncker DJ, Batlle M, Dantas AP, Sanz M, Sitges M, Mont L, Guasch E, Lobysheva I, Beauloye C, Balligand JL, Vanhoutte PM, Tang EHC, Beaumont J, Lopez B, Ravassa S, Hermida N, Valencia F, Gomez-Doblas JJ, San Jose G, De Teresa E, Diez J, Van De Merbel AF, Kruithof-De Julio M, Goumans MJ, Claus P, Dries E, Angelo Singh A, Vermeulen K, Roderick HL, Sipido KR, Driesen RB, Ilchenko I, Bobronnikova L, Myasoedova V, Alamanni F, Tremoli E, Poggio P, Becher PM, Gotzhein F, Klingel K, Blankenberg S, Westermann D, Zi M, Cartwright E, Campostrini G, Bonzanni M, Milanesi R, Bucchi A, Baruscotti M, Difrancesco D, Barbuti A, Fantini M, Wilders R, Severi S, Benzoni P, Dell' Era P, Serzanti M, Olesen MS, Muneretto C, Bisleri G, Difrancesco D, Baruscotti M, Bucchi A, Barbuti A, Amoros-Figueras G, Raga S, Campos B, Alonso-Martin C, Rodriguez-Font E, Vinolas X, Cinca J, Guerra JM, Mengarelli I, Schumacher CA, Veldkamp MW, Verkerk AO, Remme CA, Veerman C, Guan K, Stauske M, Tan H, Barc J, Wilde A, Verkerk A, Bezzina C, Tsinlikov I, Tsinlikova I, Nicoloff G, Blazhev A, Garev A, Andrienko AV, Lychev VG, Vorobova EN, Anchugina DA, Vion AC, Hammoutene A, Poisson J, Dupont N, Souyri M, Tedgui A, Codogno P, Boulanger CM, Rautou PE, Dantas AP, Batlle M, Guasch E, Torres M, Montserrat JM, Almendros I, Mont L, Austin CA, Holt CM, Rijs K, Wezel A, Hamming JF, Kolodgie FD, Virmani R, Schaapherder AF, Lindeman JHN, Posma JJN, Van Oerle R, Spronk HMH, Ten Cate H, Dinkla S, Kaski JC, Schober A, Chaabane C, Ambartsumian N, Grigorian M, Bochaton-Piallat ML, Dragan E, Andrei E, Niculescu L, Georgescu A, Gonzalez-Calero L, Maroto AS, Martinez PJ, Heredero A, Aldamiz-Echevarria G, Vivanco F, Alvarez-Llamas G, Meens MJ, Pelli G, Foglia B, Scemes E, Kwak BR, Caldwell JL, Eisner DA, Dibb KM, Trafford AW, Chilton L, Smith GL, Nicklin SA, Coppini R, Ferrantini C, Yan P, Loew LM, Poggesi C, Cerbai E, Pavone FS, Sacconi L, Tanaka H, Ishibashi-Ueda H, Takamatsu T, Coppini R, Ferrantini C, Gentile F, Pioner JM, Santini L, Sartiani L, Bargelli V, Poggesi C, Mugelli A, Cerbai E, Maciejewska M, Bolton EL, Wang Y, O'brien F, Ruas M, Lei M, Sitsapesan R, Galione A, Terrar DA, Smith JG, Garcia D, Barriales-Villa R, Monserrat L, Harding SE, Denning C, Marston SB, Watson S, Tkach S, Faggian G, Terracciano CM, Perbellini F, Eiros Zamora J, Papadaki M, Messer A, Marston S, Gould I, Johnston A, Dunne M, Smith G, Kemi OJ, Pillai M, Davidson SM, Yellon DM, Tratsiakovich Y, Jang J, Gonon AT, Pernow J, Matoba T, Koga J, Egashira K, Burke N, Davidson SM, Yellon DM, Korpisalo P, Hakkarainen H, Laidinen S, Yla-Herttuala S, Ferrer-Curriu G, Perez M, Permanyer E, Blasco-Lucas A, Gracia JM, Castro MA, Barquinero J, Galinanes M, Kostina D, Kostareva A, Malashicheva A, Merino D, Ruiz L, Gomez J, Juarez C, Gil A, Garcia R, Hurle MA, Coppini R, Pioner JM, Gentile F, Mazzoni L, Rossi A, Tesi C, Belardinelli L, Olivotto I, Cerbai E, Mugelli A, Poggesi C, Eun-Ji EJ, Lim BK, Choi DJ, Milano G, Bertolotti M, De Marchis F, Zollo F, Sommariva E, Capogrossi MC, Pompilio G, Bianchi ME, Raucci A, Pioner JM, Coppini R, Scellini B, Tardiff J, Tesi C, Poggesi C, Ferrantini C, Mazzoni L, Sartiani L, Coppini R, Diolaiuti L, Ferrari P, Cerbai E, Mugelli A, Mansfield C, Luther P, Knoell R, Villalba M, Sanchez-Cabo F, Lopez-Olaneta MM, Ortiz-Sanchez P, Garcia-Pavia P, Lara-Pezzi E, Klauke B, Gerdes D, Schulz U, Gummert J, Milting H, Wake E, Kocsis-Fodor G, Brack KE, Ng GA, Kostareva A, Smolina N, Majchrzak M, Moehner D, Wies A, Milting H, Stehle R, Pfitzer G, Muegge A, Jaquet K, Maggiorani D, Lefevre L, Dutaur M, Mialet-Perez J, Parini A, Cussac D, Douin-Echinard V, Ebenbauer B, Kaun C, Prager M, Wojta J, Rega-Kaun G, Costa G, Onetti Y, Jimenez-Altayo F, Vila E, Dantas AP, Milano G, Bertolotti M, Scopece A, Piacentini L, Bianchi ME, Capogrossi MC, Pompilio G, Colombo G, Raucci A, Blaz M, Kapelak B, Sanak M, Bauce B, Calore C, Lorenzon A, Calore M, Poloni G, Mazzotti E, Rigato I, Daliento L, Basso C, Thiene G, Melacini P, Corrado D, Rampazzo A, Danilenko NG, Vaikhanskaya TG, Davydenko OG, Szeiffova Bacova B, Kura B, Egan Benova T, Yin CH, Kukreja R, Slezak J, Tribulova N, Lee DI, Sorge M, Glabe C, Paolocci N, Guarnieri C, Tomaselli GF, Kass DA, Van Eyk JE, Agnetti G, Cordwell SJ, White MY, Wojakowski W, Lynch M, Barallobre-Barreiro J, Yin X, Mayr U, White S, Jahingiri M, Hill J, Mayr M, Sorriento D, Ciccarelli M, Fiordelisi A, Campiglia P, Trimarco B, Iaccarino G, Sitar Taut AV, Schiau S, Orasan O, Halloumi W, Negrean V, Zdrenghea D, Pop D, Van Der Meer RW, Rijzewijk LJ, Smit JWA, Revuelta-Lopez E, Nasarre L, Escola-Gil JC, Lamb HJ, Llorente-Cortes V, Pellegrino M, Massaro M, Carluccio MA, Calabriso N, Wabitsch M, Storelli C, De Caterina R, Church SJ, Callagy S, Begley P, Kureishy N, Mcharg S, Bishop PN, Unwin RD, Cooper GJS, Mawad D, Perbellini F, Tonkin J, Bello SO, Simonotto JD, Lyon AR, Stevens MM, Terracciano CM, Harding SE, Kernbach M, Czichowski V, Bosio A, Fuentes L, Hernandez-Redondo I, Guillem MS, Fernandez ME, Sanz R, Atienza F, Climent AM, Fernandez-Aviles F, Soler-Botija C, Prat-Vidal C, Galvez-Monton C, Roura S, Perea-Gil I, Bragos R, Bayes-Genis A. Poster session 1Cell growth, differentiation and stem cells - Heart72Understanding the metabolism of cardiac progenitor cells: a first step towards controlling their proliferation and differentiation?73Expression of pw1/peg3 identifies a new cardiac adult stem cell population involved in post-myocardial infarction remodeling74Long-term stimulation of iPS-derived cardiomyocytes using optogenetic techniques to promote phenotypic changes in E-C coupling75Benefits of electrical stimulation on differentiation and maturation of cardiomyocytes from human induced pluripotent stem cells76Constitutive beta-adrenoceptor-mediated cAMP production controls spontaneous automaticity of human induced pluripotent stem cell-derived cardiomyocytes77Formation and stability of T-tubules in cardiomyocytes78Identification of miRNAs promoting human cardiomyocyte proliferation by regulating Hippo pathway79A direct comparison of foetal to adult epicardial cell activation reveals distinct differences relevant for the post-injury response80Role of neuropilins in zebrafish heart regeneration81Highly efficient immunomagnetic purification of cardiomyocytes derived from human pluripotent stem cells82Cardiac progenitor cells posses a molecular circadian clock and display large 24-hour oscillations in proliferation and stress tolerance83Influence of sirolimus and everolimus on bone marrow-derived mesenchymal stem cell biology84Endoglin is important for epicardial behaviour following cardiac injuryCell death and apoptosis - Heart87Ultrastructural alterations reflecting Ca2+ handling and cell-to-cell coupling disorders precede occurrence of severe arrhythmias in intact animal heart88Urocortin-1 promotes cardioprotection through ERK1/2 and EPAC pathways: role in apoptosis and necrosis89Expression p38 MAPK and Cas-3 in myocardium LV of rats with experimental heart failure at melatonin and enalapril introductionTranscriptional control and RNA species - Heart92Accumulation of beta-amyloid 1-40 in HF patients: the role of lncRNA BACE1-AS93Role of miR-182 in zebrafish and mouse models of Holt-Oram syndrome94Mir-27 distinctly regulates muscle-enriched transcription factors and growth factors in cardiac and skeletal muscle cells95AF risk factors impair PITX2 expression leading to Wnt-microRNA-ion channel remodelingCytokines and cellular inflammation - Heart98Post-infarct survival depends on the interplay of monocytes, neutrophils and interferon gamma in a mouse model of myocardial Infarction99Inflammatory cd11b/c cells play a protective role in compensated cardiac hypertrophy by promoting an orai3-related pro-survival signal100Anti-inflammatory effects of endothelin receptor blockade in the atrial tissue of spontaneously hypertensive rats101Mesenchymal stromal cells reduce NLRP3 inflammasome activity in Coxsackievirus B3-induced myocarditis102Mesenchymal stromal cells modulate monocytes trafficking in Coxsackievirus B3-induced myocarditis103The impact of regulatory T lymphocytes on long-term mortality in patients with chronic heart failure104Temporal dynamics of dendritic cells after ST-elevation myocardial infarction relate with improvement of myocardial functionGrowth factors and neurohormones - Heart107Preconditioning of hypertrophied heart: miR-1 and IGF-1 crosstalk108Modulation of catecholamine secretion from human adrenal chromaffin cells by manipulation of G protein-coupled receptor kinase-2 activity109Evaluation of cyclic adenosin-3,5- monophosphate and neurohormones in patients with chronic heart failureNitric oxide and reactive oxygen species - Heart112Hydrogen sulfide donor inhibits oxidative and nitrosative stress, cardiohemodynamics disturbances and restores cNOS coupling in old rats113Role and mechanisms of action of aldehydes produced by monoamine oxidase A in cardiomyocyte death and heart failure114Exercise training has contrasting effects in myocardial infarction and pressure-overload due to different endothelial nitric oxide synthase regulation115S-Nitroso Human Serum Albumin dose-dependently leads to vasodilation and alters reactive hyperaemia in coronary arteries of an isolated mouse heart model116Modulating endothelial nitric oxide synthase with folic acid attenuates doxorubicin-induced cardiomyopathy119Effects of long-term very high intensity exercise on aortic structure and function in an animal model120Electron paramagnetic resonance spectroscopy quantification of nitrosylated hemoglobin (HbNO) as an index of vascular nitric oxide bioavailability in vivo121Deletion of repressor activator protein 1 impairs acetylcholine-induced relaxation due to production of reactive oxygen speciesExtracellular matrix and fibrosis - Heart124MicroRNA-19b is associated with myocardial collagen cross-linking in patients with severe aortic stenosis. Potential usefulness as a circulating biomarker125A new ex vivo model to study cardiac fibrosis126Heterogeneity of fibrosis and fibroblast differentiation in the left ventricle after myocardial infarction127Effect of carbohydrate metabolism degree compensation to the level of galectin-3 changes in hypertensive patients with chronic heart failure and type 2 diabetes mellitus128Statin paradox in association with calcification of bicuspid aortic valve interstitial cells129Cardiac function remains impaired despite reversible cardiac fibrosis after healed experimental viral myocarditisIon channels, ion exchangers and cellular electrophysiology - Heart132Identifying a novel role for PMCA1 (Atp2b1) in heart rhythm instability133Mutations of the caveolin-3 gene as a predisposing factor for cardiac arrhythmias134The human sinoatrial node action potential: time for a computational model135iPSC-derived cardiomyocytes as a model to dissect ion current alterations of genetic atrial fibrillation136Postextrasystolic potentiation in healthy and diseased hearts: effects of the site of origin and coupling interval of the preceding extrasystole137Absence of Nav1.8-based (late) sodium current in rabbit cardiomyocytes and human iPSC-CMs138hiPSC-derived cardiomyocytes from Brugada Syndrome patients without identified mutations do not exhibit cellular electrophysiological abnormalitiesMicrocirculation141Atherogenic indices, collagen type IV turnover and the development of microvascular complications- study in diabetics with arterial hypertension142Changes in the microvasculature and blood viscosity in women with rheumatoid arthritis, hypercholesterolemia and hypertensionAtherosclerosis145Shear stress regulates endothelial autophagy: consequences on endothelial senescence and atherogenesis146Obstructive sleep apnea causes aortic remodeling in a chronic murine model147Aortic perivascular adipose tissue displays an aged phenotype in early and late atherosclerosis in ApoE-/- mice148A systematic evaluation of the cellular innate immune response during the process of human atherosclerosis149Inhibition of Coagulation factor Xa increases plaque stability and attenuates the onset and progression of atherosclerotic plaque in apolipoprotein e-deficient mice150Regulatory CD4+ T cells from patients with atherosclerosis display pro-inflammatory skewing and enhanced suppression function151Hypoxia-inducible factor (HIF)-1alpha regulates macrophage energy metabolism by mediating miRNAs152Extracellular S100A4 is a key player of smooth muscle cell phenotypic transition: implications in atherosclerosis153Microparticles of healthy origins improve atherosclerosis-associated endothelial progenitor cell dysfunction via microRNA transfer154Arterial remodeling and metabolism impairment in early atherosclerosis155Role of pannexin1 in atherosclerotic plaque formationCalcium fluxes and excitation-contraction coupling158Amphiphysin II induces tubule formation in cardiac cells159Interleukin 1 beta regulation of connexin 43 in cardiac fibroblasts and the effects of adult cardiac myocyte:fibroblast co-culture on myocyte contraction160T-tubular electrical defects contribute to blunted beta-adrenergic response in heart failure161Beat-to-beat variability of intracellular Ca2+ dynamics of Purkinje cells in the infarct border zone of the mouse heart revealed by rapid-scanning confocal microscopy162The efficacy of late sodium current blockers in hypertrophic cardiomyopathy is dependent on genotype: a study on transgenic mouse models with different mutations163Synthesis of cADPR and NAADP by intracellular CD38 in heart: role in inotropic and arrhythmogenic effects of beta-adrenoceptor signalingContractile apparatus166Towards an engineered heart tissue model of HCM using hiPSC expressing the ACTC E99K mutation167Diastolic mechanical load delays structural and functional deterioration of ultrathin adult heart slices in culture168Structural investigation of the cardiac troponin complex by molecular dynamics169Exercise training restores myocardial and oxidative skeletal muscle function from myocardial infarction heart failure ratsOxygen sensing, ischaemia and reperfusion172A novel antibody specific to full-length stromal derived factor-1 alpha reveals that remote conditioning induces its cleavage by endothelial dipeptidyl peptidase 4173Attenuation of myocardial and vascular arginase activity by vagal nerve stimulation via a mechanism involving alpha-7 nicotinic receptor during cardiac ischemia and reperfusion174Novel nanoparticle-mediated medicine for myocardial ischemia-reperfusion injury simultaneously targeting mitochondrial injury and myocardial inflammation175Acetylcholine plays a key role in myocardial ischaemic preconditioning via recruitment of intrinsic cardiac ganglia176The role of nitric oxide and VEGFR-2 signaling in post ischemic revascularization and muscle recovery in aged hypercholesterolemic mice177Efficacy of ischemic preconditioning to protect the human myocardium: the role of clinical conditions and treatmentsCardiomyopathies and fibrosis180Plakophilin-2 haploinsufficiency leads to impaired canonical Wnt signaling in ARVC patient181Improved technique for customized, easier, safer and more reliable transverse aortic arch banding and debanding in mice as a model of pressure overload hypertrophy182Late sodium current inhibitors for the treatment of inducible obstruction and diastolic dysfunction in hypertrophic cardiomyopathy: a study on human myocardium183Angiotensin II receptor antagonist fimasartan has protective role of left ventricular fibrosis and remodeling in the rat ischemic heart184Role of High-Mobility Group Box 1 (HMGB1) redox state on cardiac fibroblasts activities and heart function after myocardial infarction185Atrial remodeling in hypertrophic cardiomyopathy: insights from mouse models carrying different mutations in cTnT186Electrophysiological abnormalities in ventricular cardiomyocytes from a Maine Coon cat with hypertrophic cardiomyopathy: effects of ranolazine187ZBTB17 is a novel cardiomyopathy candidate gene and regulates autophagy in the heart188Inhibition of SRSF4 in cardiomyocytes induces left ventricular hypertrophy189Molecular characterization of a novel cardiomyopathy related desmin frame shift mutation190Autonomic characterisation of electro-mechanical remodeling in an in-vitro leporine model of heart failure191Modulation of Ca2+-regulatory function by three novel mutations in TNNI3 associated with severe infant restrictive cardiomyopathyAging194The aging impact on cardiac mesenchymal like stromal cells (S+P+)195Reversal of premature aging markers after bariatric surgery196Sex-associated differences in vascular remodeling during aging: role of renin-angiotensin system197Role of the receptor for advanced glycation end-products (RAGE) in age dependent left ventricle dysfunctionsGenetics and epigenetics200hsa-miR-21-5p as a key factor in aortic remodeling during aneurysm formation201Co-inheritance of mutations associated with arrhythmogenic and hypertrophic cardiomyopathy in two Italian families202Lamin a/c hot spot codon 190: form various amino acid substitutions to clinical effects203Treatment with aspirin and atorvastatin attenuate cardiac injury induced by rat chest irradiation: Implication of myocardial miR-1, miR-21, connexin-43 and PKCGenomics, proteomics, metabolomics, lipidomics and glycomics206Differential phosphorylation of desmin at serines 27 and 31 drives the accumulation of preamyloid oligomers in heart failure207Potential role of kinase Akt2 in the reduced recovery of type 2 diabetic hearts subjected to ischemia / reperfusion injury208A proteomics comparison of extracellular matrix remodelling in porcine coronary arteries upon stent implantationMetabolism, diabetes mellitus and obesity211Targeting grk2 as therapeutic strategy for cancer associated to diabetes212Effects of salbutamol on large arterial stiffness in patients with metabolic syndrome213Circulating microRNA-1 and microRNA-133a: potential biomarkers of myocardial steatosis in type 2 diabetes mellitus214Anti-inflammatory nutrigenomic effects of hydroxytyrosol in human adipocytes - protective mechanisms of mediterranean diets in obesity-related inflammation215Alterations in the metal content of different cardiac regions within a rat model of diabetic cardiomyopathyTissue engineering218A novel conductive patch for application in cardiac tissue engineering219Establishment of a simplified and improved workflow from neonatal heart dissociation to cardiomyocyte purification and characterization220Effects of flexible substrate on cardiomyocytes cell culture221Mechanical stretching on cardiac adipose progenitors upregulates sarcomere-related genes. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Meraviglia V, Wen J, Piacentini L, Campostrini G, Wang C, Florio MC, Azzimato V, Fassina L, Langes M, Wong J, Miragoli M, Gaetano C, Pompilio G, Barbuti A, DiFrancesco D, Mascalzoni D, Pramstaller PP, Colombo GI, Chen HSV, Rossini A. Higher cardiogenic potential of iPSCs derived from cardiac versus skin stromal cells. Front Biosci (Landmark Ed) 2016; 21:719-43. [PMID: 26709802 DOI: 10.2741/4417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Prior studies have demonstrated that founder cell type could influence induced pluripotent stem cells (iPSCs) molecular and developmental properties at early passages after establishing their pluripotent state. Herein, we evaluated the persistence of a functional memory related to the tissue of origin in iPSCs from syngeneic cardiac (CStC) vs skin stromal cells (SStCs). We found that, at passages greater than 15, iPSCs from cardiac stromal cells (C-iPSCs) produced a higher number of beating embryoid bodies than iPSCs from skin stromal cells (S-iPSCs). Flow cytometry analysis revealed that dissected beating areas from C-iPSCs exhibited more Troponin-T positive cells compared to S-iPSCs. Beating areas derived from C-iPSCs displayed higher expression of cardiac markers, more hyperpolarized diastolic potentials, larger action potential amplitude and higher contractility than beaters from skin. Also, different microRNA subsets were differentially modulated in CStCs vs SStCs during the reprogramming process, potentially accounting for the higher cardiogenic potentials of C-iPSCs vs S-iPSCs. Therefore, the present work supports the existence of a founder organ memory in iPSCs obtained from the stromal component of the origin tissue.
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Affiliation(s)
- Viviana Meraviglia
- Laboratory of Vascular Biology and Regenerative Medicine Centro Cardiologico Monzino IRCCS, Milano, 20138 Italy
| | - Jianyan Wen
- Del E. Webb Center for Neuroscience, Aging & Stem Cell Research, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Luca Piacentini
- aboratory of Immunology and Functional Genomics, Centro Cardiologico Monzino IRCCS, Milano, 20138 Italy
| | - Giulia Campostrini
- The PaceLab, Department of Biosciences, University of Milano, Milano, 20133 Italy
| | - Cheng Wang
- Del E. Webb Center for Neuroscience, Aging and Stem Cell Research, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Maria Cristina Florio
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC) (affiliated institute of the University of Lübeck), Bolzano, 39100 Italy
| | - Valerio Azzimato
- Department of Pharmacological and Biomolecular Sciences, University of Milano, Milano, 20133 Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, 27100 Italy
| | - Martin Langes
- Laboratorio Specialistico di Ematologia, Ospedale Centrale di Bolzano, Azienda Sanitaria dell'Alto Adige, Bolzano, 39100 Italy
| | - Johnson Wong
- Del E. Webb Center for Neuroscience, Aging and Stem Cell Research, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Michele Miragoli
- CERT, Center of Excellence for Toxicological Research, INAIL, ex ISPESL, University of Parma, Parma, 43125 Italy
| | - Carlo Gaetano
- Division of Cardiovascular Epigenetics, Department of Cardiology, Goethe University, Frankfurt am Main, 60590 Germany
| | - Giulio Pompilio
- Department of Clinical Sciences and Community Health, University of Milano, Milano, 20122 Italy
| | - Andrea Barbuti
- Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata (CIMMBA), University of Milano, Milano, 20133 Italy
| | - Dario DiFrancesco
- The PaceLab, Department of Biosciences, University of Milano, Milano, 20133 Italy
| | - Deborah Mascalzoni
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC) (affiliated institute of the University of Lübeck), Bolzano, 39100 Italy
| | - Peter P Pramstaller
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC) (affiliated institute of the University of Lübeck), Bolzano, 39100 Italy
| | - Gualtiero I Colombo
- Laboratory of Immunology and Functional Genomics, Centro Cardiologico Monzino IRCCS, Milano, 20138 Italy
| | - Huei-Sheng Vincent Chen
- Departments of Medicine/Cardiology, University of California-San Diego (UCSD), La Jolla, California 92037, USA
| | - Alessandra Rossini
- Department of Clinical Sciences and Community Health, University of Milano, Milano, 20122 Italy,
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Meraviglia V, Wen J, Piacentini L, Campostrini G, Wang C, Florio M, Azzimato V, Fassina L, Langes M, Wong J, Miragoli M, Gaetano C, Pompilio G, Barbuti A, DiFrancesco D, Mascalzoni D, Pramstaller P, Colombo G, Chen H, Rossini A. High cardiac differentiation properties are evident in induced pluripotent stem cells obtained from atrial mesenchymal cells. Vascul Pharmacol 2015. [DOI: 10.1016/j.vph.2015.11.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Pastor P, Villedieu E, Allegretti L, Vincent B, Barbuti A, Bruno V, Coquillat P, Dechelle C, Gargiulo L, Le R, Malard P, Martinez A, Nouailletas R, Yuntao S, Yong C, Chen L, Hansheng F, Shanshuang S. Major upgrade of the articulated inspection arm control system to fulfill daily operation requirements. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.05.012] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Meraviglia V, Azzimato V, Colussi C, Florio MC, Binda A, Panariti A, Qanud K, Suffredini S, Gennaccaro L, Miragoli M, Barbuti A, Lampe PD, Gaetano C, Pramstaller PP, Capogrossi MC, Recchia FA, Pompilio G, Rivolta I, Rossini A. Acetylation mediates Cx43 reduction caused by electrical stimulation. J Mol Cell Cardiol 2015; 87:54-64. [PMID: 26264759 DOI: 10.1016/j.yjmcc.2015.08.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 02/12/2015] [Revised: 07/29/2015] [Accepted: 08/03/2015] [Indexed: 01/13/2023]
Abstract
Communication between cardiomyocytes depends upon gap junctions (GJ). Previous studies have demonstrated that electrical stimulation induces GJ remodeling and modifies histone acetylase (HAT) and deacetylase (HDAC) activities, although these two results have not been linked. The aim of this work was to establish whether electrical stimulation modulates GJ-mediated cardiac cell-cell communication by acetylation-dependent mechanisms. Field stimulation of HL-1 cardiomyocytes at 0.5 Hz for 24 h significantly reduced connexin43 (Cx43) expression and cell-cell communication. HDAC activity was down-regulated whereas HAT activity was not modified resulting in increased acetylation of Cx43. Consistent with a post-translational mechanism, we did not observe a reduction in Cx43 mRNA in electrically stimulated cells, while the proteasomal inhibitor MG132 maintained Cx43 expression. Further, the treatment of paced cells with the HAT inhibitor Anacardic Acid maintained both the levels of Cx43 and cell-cell communication. Finally, we observed increased acetylation of Cx43 in the left ventricles of dogs subjected to chronic tachypacing as a model of abnormal ventricular activation. In conclusion, our findings suggest that altered electrical activity can regulate cardiomyocyte communication by influencing the acetylation status of Cx43.
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Affiliation(s)
- Viviana Meraviglia
- Laboratory of Vascular Biology and Regenerative Medicine, Centro Cardiologico Monzino IRCCS, Milano, Italy; Center for Biomedicine, European Academy Bozen/Bolzano (EURAC), Bolzano Italy
| | - Valerio Azzimato
- Laboratory of Vascular Biology and Regenerative Medicine, Centro Cardiologico Monzino IRCCS, Milano, Italy; Department of Pharmacology, Chemotherapy and Medical Toxicology, Università degli Studi di Milano, Milano, Italy
| | - Claudia Colussi
- Istituto di Patologia Medica, Università Cattolica del SacroCuore, Roma, Italy
| | | | - Anna Binda
- Department of Health Science, University of Milano Bicocca, Monza, Italy
| | - Alice Panariti
- Department of Health Science, University of Milano Bicocca, Monza, Italy
| | - Khaled Qanud
- Department of Physiology, New York Medical College, Valhalla, NY, United States
| | - Silvia Suffredini
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC), Bolzano Italy
| | - Laura Gennaccaro
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC), Bolzano Italy; Department of Life Sciences, University of Parma, Parma, Italy
| | - Michele Miragoli
- CERT, Center of Excellence for Toxicological Research, INAIL, ex ISPESL, University of Parma, Parma, Italy; Humanitas Clinical and Research Center, Rozzano Milano, Italy
| | - Andrea Barbuti
- The PaceLab, Department of Biosciences, Università di Milano, Italy
| | - Paul D Lampe
- Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Carlo Gaetano
- Division of Cardiovascular Epigenetics, Department of Cardiology, Goethe University, Frankfurt am Main, Germany
| | - Peter P Pramstaller
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC), Bolzano Italy
| | - Maurizio C Capogrossi
- Laboratory of Vascular Pathology, Istituto Dermopatico dell'Immacolata IRCCS, Roma, Italy
| | - Fabio A Recchia
- Department of Physiology, Temple University School of Medicine, Philadelphia, PA, United States; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Giulio Pompilio
- Laboratory of Vascular Biology and Regenerative Medicine, Centro Cardiologico Monzino IRCCS, Milano, Italy; Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milano, Italy
| | - Ilaria Rivolta
- Department of Health Science, University of Milano Bicocca, Monza, Italy
| | - Alessandra Rossini
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC), Bolzano Italy.
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Abstract
PURPOSE We examined the effects of an 8-week repeated-sprint (RS) training protocol on postexercise parasympathetic reactivation (PNSr) in healthy adults. METHODS Eighteen male adults (24.3 ± 3.7 years) were assigned to either of two groups. One group (n = 9) performed RS training (EXP, 3 times week(-1), 18 maximal all-out 15-m sprints interspersed with 17 s of passive recovery); the other served as the control group (CON, n = 9). Performance before, during, and after was assessed by measuring RS ability time (S dec) and total sprint time. The subjects were then seated for 10 min immediately after each trial and postexercise HR recovery (HRR), and vagal-related HR variability (HRV) indices were measured. RESULTS All subjects demonstrated a decrease in S dec. However, only EXP showed a decrease in total sprint time (-10.5 % of baseline value). Using a qualitative statistical analysis method, we found a likely to almost certain positive effect of RS training on HR. The mean of each HRR and HRV index indicated a greater change in PNSr in EXP than in CON (e.g. with a 78/22/1 % chance to demonstrate a positive/trivial/negative effect on HRR60s after RS training; 74/21/5 % on LN rMSSD5-10min). Large correlations were noted between the changes in S dec [r = 0.59, 90 % CI (0.43)], total sprint time [r = -0.61 (0.42)] and HRR60s. CONCLUSION RS training seems to be an effective method to improve postexercise PNSr in healthy adults. Also, HRR60s appears to be a method for evaluating positive adaption to RS training.
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Affiliation(s)
- Gianluca Vernillo
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, via Kramer 4/a, 20133, Milan, Italy. .,CeRiSM, Research Center for Sport, Mountain and Health, University of Verona, Roveretos, TN, Italy. .,Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Canada.
| | - Luca Agnello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, via Kramer 4/a, 20133, Milan, Italy
| | - Andrea Barbuti
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy.,Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata (CIMMBA), Università degli Studi di Milano, Milan, Italy
| | - Silvia Di Meco
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, via Kramer 4/a, 20133, Milan, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Giampiero Merati
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, via Kramer 4/a, 20133, Milan, Italy.,IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Antonio La Torre
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, via Kramer 4/a, 20133, Milan, Italy
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Barbuti A, Robinson RB. Stem Cell–Derived Nodal-Like Cardiomyocytes as a Novel Pharmacologic Tool: Insights from Sinoatrial Node Development and Function. Pharmacol Rev 2015; 67:368-88. [DOI: 10.1124/pr.114.009597] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Scavone A, Capilupo D, Mazzocchi N, Crespi A, Zoia S, Campostrini G, Bucchi A, Milanesi R, Baruscotti M, Benedetti S, Antonini S, Messina G, DiFrancesco D, Barbuti A. Embryonic stem cell-derived CD166+ precursors develop into fully functional sinoatrial-like cells. Circ Res 2013; 113:389-98. [PMID: 23753573 DOI: 10.1161/circresaha.113.301283] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
RATIONALE A cell-based biological pacemaker is based on the differentiation of stem cells and the selection of a population displaying the molecular and functional properties of native sinoatrial node (SAN) cardiomyocytes. So far, such selection has been hampered by the lack of proper markers. CD166 is specifically but transiently expressed in the mouse heart tube and sinus venosus, the prospective SAN. OBJECTIVE We have explored the possibility of using CD166 expression for isolating SAN progenitors from differentiating embryonic stem cells. METHODS AND RESULTS We found that in embryonic day 10.5 mouse hearts, CD166 and HCN4, markers of the pacemaker tissue, are coexpressed. Sorting embryonic stem cells for CD166 expression at differentiation day 8 selects a population of pacemaker precursors. CD166+ cells express high levels of genes involved in SAN development (Tbx18, Tbx3, Isl-1, Shox2) and function (Cx30.2, HCN4, HCN1, CaV1.3) and low levels of ventricular genes (Cx43, Kv4.2, HCN2, Nkx2.5). In culture, CD166+ cells form an autorhythmic syncytium composed of cells morphologically similar to and with the electrophysiological properties of murine SAN myocytes. Isoproterenol increases (+57%) and acetylcholine decreases (-23%) the beating rate of CD166-selected cells, which express the β-adrenergic and muscarinic receptors. In cocultures, CD166-selected cells are able to pace neonatal ventricular myocytes at a rate faster than their own. Furthermore, CD166+ cells have lost pluripotency genes and do not form teratomas in vivo. CONCLUSIONS We demonstrated for the first time the isolation of a nonteratogenic population of cardiac precursors able to mature and form a fully functional SAN-like tissue.
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Affiliation(s)
- Angela Scavone
- Department of Biosciences, Università degli Studi di Milano, Milano, Italy
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Bucchi A, Baruscotti M, Nardini M, Barbuti A, Micheloni S, Bolognesi M, DiFrancesco D. Identification of the molecular site of ivabradine binding to HCN4 channels. PLoS One 2013; 8:e53132. [PMID: 23308150 PMCID: PMC3537762 DOI: 10.1371/journal.pone.0053132] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 11/23/2012] [Indexed: 12/26/2022] Open
Abstract
Ivabradine is a specific heart rate-reducing agent approved as a treatment of chronic stable angina. Its mode of action involves a selective and specific block of HCN channels, the molecular components of sinoatrial "funny" (f)-channels. Different studies suggest that the binding site of ivabradine is located in the inner vestibule of HCN channels, but the molecular details of ivabradine binding are unknown. We thus sought to investigate by mutagenesis and in silico analysis which residues of the HCN4 channel, the HCN isoform expressed in the sinoatrial node, are involved in the binding of ivabradine. Using homology modeling, we verified the presence of an inner cavity below the channel pore and identified residues lining the cavity; these residues were replaced with alanine (or valine) either alone or in combination, and WT and mutant channels were expressed in HEK293 cells. Comparison of the block efficiency of mutant vs WT channels, measured by patch-clamp, revealed that residues Y506, F509 and I510 are involved in ivabradine binding. For each mutant channel, docking simulations correctly explain the reduced block efficiency in terms of proportionally reduced affinity for ivabradine binding. In summary our study shows that ivabradine occupies a cavity below the channel pore, and identifies specific residues facing this cavity that interact and stabilize the ivabradine molecule. This study provides an interpretation of known properties of f/HCN4 channel block by ivabradine such as the “open channel block”, the current-dependence of block and the property of "trapping" of drug molecules in the closed configuration.
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Affiliation(s)
- Annalisa Bucchi
- The PaceLab, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
- Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata, Università degli Studi di Milano, Milano, Italy
| | - Mirko Baruscotti
- The PaceLab, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
- Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata, Università degli Studi di Milano, Milano, Italy
| | - Marco Nardini
- Laboratory of Protein Biochemistry, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
| | - Andrea Barbuti
- The PaceLab, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
- Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata, Università degli Studi di Milano, Milano, Italy
| | - Stefano Micheloni
- The PaceLab, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
| | - Martino Bolognesi
- Laboratory of Protein Biochemistry, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
| | - Dario DiFrancesco
- The PaceLab, Department of Life Sciences, Università degli Studi di Milano, Milano, Italy
- Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata, Università degli Studi di Milano, Milano, Italy
- * E-mail:
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Bucchi A, Barbuti A, Difrancesco D, Baruscotti M. Funny Current and Cardiac Rhythm: Insights from HCN Knockout and Transgenic Mouse Models. Front Physiol 2012; 3:240. [PMID: 22783204 PMCID: PMC3387723 DOI: 10.3389/fphys.2012.00240] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 06/12/2012] [Indexed: 01/01/2023] Open
Abstract
In the adult animal the sinoatrial node (SAN) rhythmically generates a depolarizing wave that propagates to the rest of the heart. However, the SAN is more than a simple clock; it is a clock that adjusts its pace according to the metabolic requirements of the organism. The Hyperpolarization-activated Cyclic Nucleotide-gated channels (HCN1–4) are the structural component of the funny (If) channels; in the SAN the If current is the main driving electrical force of the diastolic depolarization and the HCN4 is the most abundant isoform. The generation of HCN KO and transgenic mouse models has advanced the understanding of the role of these channels in cardiac excitability. The HCN4 KO models that were first developed allowed either global or cardiac-specific constitutive ablation of HCN4 channels, and resulted in embryonic lethality. A further progress was made with the development of three separate inducible HCN4 KO models; in one model KO was induced globally in the entire organism, in a second, ablation occurred only in HCN4-expressing cells, and finally in a third model KO was confined to cardiac cells. Unexpectedly, the three models yielded different results; similarities and differences among these models will be presented and discussed. The functional effects of HCN2 and HCN3 knockout models and transgenic HCN4 mouse models will also be discussed. In conclusion, HCN KO/transgenic models have allowed to evaluate the functional role of the If currents in intact animals as well as in single SAN cells isolated from the same animals. This opportunity is therefore unique since it allows (1) to verify the contribution of specific HCN isoforms to cardiac activity in intact animals, and (2) to compare these results to those obtained in single cell experiments. These combined studies were not possible prior to the development of KO models. Finally, these models represent critical tools to improve our understanding of the molecular basis of some inheritable arrhythmic human pathologies.
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Affiliation(s)
- Annalisa Bucchi
- Department of Biosciences, University of Milano Milano, Italy
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Barbuti A, Scavone A, Mazzocchi N, Terragni B, Baruscotti M, Difrancesco D. A caveolin-binding domain in the HCN4 channels mediates functional interaction with caveolin proteins. J Mol Cell Cardiol 2012; 53:187-95. [PMID: 22659290 DOI: 10.1016/j.yjmcc.2012.05.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [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: 01/13/2012] [Revised: 04/18/2012] [Accepted: 05/10/2012] [Indexed: 12/17/2022]
Abstract
Pacemaker (HCN) channels have a key role in the generation and modulation of spontaneous activity of sinoatrial node myocytes. Previous work has shown that compartmentation of HCN4 pacemaker channels within caveolae regulates important functions, but the molecular mechanism responsible is still unknown. HCN channels have a conserved caveolin-binding domain (CBD) composed of three aromatic amino acids at the N-terminus; we sought to evaluate the role of this CBD in channel-protein interaction by mutational analysis. We generated two HCN4 mutants with a disrupted CBD (Y259S, F262V) and two with conservative mutations (Y259F, F262Y). In CHO cells expressing endogenous caveolin-1 (cav-1), alteration of the CBD shifted channels activation to more positive potentials, slowed deactivation and made Y259S and F262V mutants insensitive to cholesterol depletion-induced caveolar disorganization. CBD alteration also caused a significant decrease of current density, due to a weaker HCN4-cav-1 interaction and accumulation of cytoplasmic channels. These effects were absent in mutants with a preserved CBD. In caveolin-1-free fibroblasts, HCN4 trafficking was impaired and current density reduced with all constructs; the activation curve of F262V was not altered relative to wt, and that of Y259S displayed only half the shift than in CHO cells. The conserved CBD present in all HCN isoforms mediates their functional interaction with caveolins. The elucidation of the molecular details of HCN4-cav-1 interaction can provide novel information to understand the basis of cardiac phenotypes associated with some forms of caveolinopathies.
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Affiliation(s)
- Andrea Barbuti
- Department of Biomolecular Sciences and Biotechnology, The PaceLab, Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy.
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