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De Bortoli M, Queisser A, Pham VC, Dompmartin A, Helaers R, Boutry S, Claus C, De Roo AK, Hammer F, Brouillard P, Abdelilah-Seyfried S, Boon LM, Vikkula M. Somatic Loss-of-Function PIK3R1 and Activating Non-hotspot PIK3CA Mutations Associated with Capillary Malformation with Dilated Veins (CMDV). J Invest Dermatol 2024:S0022-202X(24)00164-7. [PMID: 38431221 DOI: 10.1016/j.jid.2024.01.033] [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: 09/18/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 03/05/2024]
Abstract
Common capillary malformations are red vascular skin lesions, most commonly associated with somatic activating GNAQ or GNA11 mutations. We focused on capillary malformations lacking such a mutation to identify previously unreported genetic causes. We used targeted next-generation sequencing on 82 lesions. Bioinformatic analysis allowed the identification of 9 somatic pathogenic variants in PIK3R1 and PIK3CA, encoding for the regulatory and catalytic subunits of phosphoinositide 3-kinase, respectively. Recharacterization of these lesions unraveled a common phenotype: a pale capillary malformation associated with visible dilated veins. Primary endothelial cells from 2 PIK3R1-mutated lesions were isolated, and PI3k-Akt-mTOR and RAS-RAF-MAPK signaling were assessed by western blot. This unveiled an abnormal increase in Akt phosphorylation, effectively reduced by PI3K pathway inhibitors, such as mTOR, Akt, and PIK3CA inhibitors. The effects of mutant PIK3R1 were further studied using zebrafish embryos. Endothelium-specific expression of PIK3R1 mutants resulted in abnormal development of the posterior capillary-venous plexus. In summary, capillary malformation associated with visible dilated veins emerges as a clinical entity associated with somatic pathogenic variants in PIK3R1 or PIK3CA (nonhotspot). Our findings suggest that the activated Akt signaling can be effectively reversed by PI3K pathway inhibitors. In addition, the proposed zebrafish model holds promise as a valuable tool for future drug screening aimed at developing patient-tailored treatments.
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Affiliation(s)
- Martina De Bortoli
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium
| | - Angela Queisser
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium
| | - Van Cuong Pham
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Anne Dompmartin
- Department of Dermatology, VASCERN VASCA European Reference Center, Université de Caen Basse Normandie, Caen, France
| | - Raphaël Helaers
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium
| | - Simon Boutry
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium; Interuniversity Institute of Bioinformatics in Brussels, Université Libre de Bruxelles-Vrije Universiteit Brussel, Brussels, Belgium
| | - Cathy Claus
- Center for Vascular Anomalies, Division of Plastic Surgery, VASCERN VASCA European Reference Center, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, Belgium
| | - An-Katrien De Roo
- Center for Vascular Anomalies, Division of Plastic Surgery, VASCERN VASCA European Reference Center, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, Belgium; Service d'anatomopathologie, VASCERN VASCA European Reference Center, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, Belgium; Institute of Experimental and Clinical Research, UCLouvain, Brussels, Belgium
| | - Frank Hammer
- Department of Medical Imaging, VASCERN VASCA European Reference Center, Cliniques Universitaires Saint-Luc, UCLouvain, Brussels, Belgium
| | - Pascal Brouillard
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium
| | | | - Laurence M Boon
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium; Center for Vascular Anomalies, Division of Plastic Surgery, VASCERN VASCA European Reference Center, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, Belgium
| | - Miikka Vikkula
- Laboratory of Human Molecular Genetics, de Duve Institute, UCLouvain, Brussels, Belgium; Center for Vascular Anomalies, Division of Plastic Surgery, VASCERN VASCA European Reference Center, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, Belgium; WELBIO Department, WEL Research Institute, Wavre, Belgium.
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2
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Cheng F, Dennis AB, Baumann O, Kirschbaum F, Abdelilah-Seyfried S, Tiedemann R. Gene and Allele-Specific Expression Underlying the Electric Signal Divergence in African Weakly Electric Fish. Mol Biol Evol 2024; 41:msae021. [PMID: 38410843 PMCID: PMC10897887 DOI: 10.1093/molbev/msae021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/15/2023] [Accepted: 01/29/2024] [Indexed: 02/28/2024] Open
Abstract
In the African weakly electric fish genus Campylomormyrus, electric organ discharge signals are strikingly different in shape and duration among closely related species, contribute to prezygotic isolation, and may have triggered an adaptive radiation. We performed mRNA sequencing on electric organs and skeletal muscles (from which the electric organs derive) from 3 species with short (0.4 ms), medium (5 ms), and long (40 ms) electric organ discharges and 2 different cross-species hybrids. We identified 1,444 upregulated genes in electric organ shared by all 5 species/hybrid cohorts, rendering them candidate genes for electric organ-specific properties in Campylomormyrus. We further identified several candidate genes, including KCNJ2 and KLF5, and their upregulation may contribute to increased electric organ discharge duration. Hybrids between a short (Campylomormyrus compressirostris) and a long (Campylomormyrus rhynchophorus) discharging species exhibit electric organ discharges of intermediate duration and showed imbalanced expression of KCNJ2 alleles, pointing toward a cis-regulatory difference at this locus, relative to electric organ discharge duration. KLF5 is a transcription factor potentially balancing potassium channel gene expression, a crucial process for the formation of an electric organ discharge. Unraveling the genetic basis of the species-specific modulation of the electric organ discharge in Campylomormyrus is crucial for understanding the adaptive radiation of this emerging model taxon of ecological (perhaps even sympatric) speciation.
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Affiliation(s)
- Feng Cheng
- Unit of Evolutionary Biology/Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Alice B Dennis
- Unit of Evolutionary Biology/Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
- Laboratory of Adaptive Evolution and Genomics, Research Unit of Environmental and Evolutionary Biology, Institute of Life, Earth & Environment, University of Namur, Namur, Belgium
| | - Otto Baumann
- Department of Animal Physiology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Frank Kirschbaum
- Unit of Evolutionary Biology/Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
- Department of Crop and Animal Science, Faculty of Life Sciences, Humboldt University, Berlin, Germany
| | - Salim Abdelilah-Seyfried
- Department of Animal Physiology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Ralph Tiedemann
- Unit of Evolutionary Biology/Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
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Lazzaroni F, Meessen JMTA, Sun Y, Lanfranconi S, Scola E, D'Alessandris QG, Tassi L, Carriero MR, Castori M, Marino S, Blanda A, Nicolis EB, Novelli D, Calabrese R, Agnelli NM, Bottazzi B, Leone R, Mazzola S, Besana S, Catozzi C, Nezi L, Lampugnani MG, Malinverno M, Grdseloff N, Rödel CJ, Rezai Jahromi B, Bolli N, Passamonti F, Magnusson PU, Abdelilah-Seyfried S, Dejana E, Latini R. Circulating biomarkers in familial cerebral cavernous malformation. EBioMedicine 2024; 99:104914. [PMID: 38113759 PMCID: PMC10767159 DOI: 10.1016/j.ebiom.2023.104914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Cerebral Cavernous Malformation (CCM) is a rare cerebrovascular disease, characterized by the presence of multiple vascular malformations that may result in intracerebral hemorrhages (ICHs), seizure(s), or focal neurological deficits (FND). Familial CCM (fCCM) is due to loss of function mutations in one of the three independent genes KRIT1 (CCM1), Malcavernin (CCM2), or Programmed Cell death 10 (PDCD10/CCM3). The aim of this study was to identify plasma protein biomarkers of fCCM to assess the severity of the disease and predict its progression. METHODS Here, we have investigated plasma samples derived from n = 71 symptomatic fCCM patients (40 female/31 male) and n = 17 healthy donors (HD) (9 female/8 male) of the Phase 1/2 Treat_CCM trial, using multiplexed protein profiling approaches. FINDINGS Biomarkers as sCD14 (p = 0.00409), LBP (p = 0.02911), CXCL4 (p = 0.038), ICAM-1 (p = 0.02013), ANG2 (p = 0.026), CCL5 (p = 0.00403), THBS1 (p = 0.0043), CRP (p = 0.0092), and HDL (p = 0.027), were significantly different in fCCM compared to HDs. Of note, sENG (p = 0.011), THBS1 (p = 0.011) and CXCL4 (p = 0.011), were correlated to CCM genotype. sROBO4 (p = 0.014), TM (p = 0.026) and CRP (p = 0.040) were able to predict incident adverse clinical events, such as ICH, FND or seizure. GDF-15, FLT3L, CXCL9, FGF-21 and CDCP1, were identified as predictors of the formation of new MRI-detectable lesions over 2-year follow-up. Furthermore, the functional relevance of ang2, thbs1, robo4 and cdcp1 markers was validated by zebrafish pre-clinical model of fCCM. INTERPRETATION Overall, our study identifies a set of biochemical parameters to predict CCM progression, suggesting biological interpretations and potential therapeutic approaches to CCM disease. FUNDING Italian Medicines Agency, Associazione Italiana per la Ricerca sul Cancro (AIRC), ERC, Leducq Transatlantic Network of Excellence, Swedish Research Council.
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Affiliation(s)
- Francesca Lazzaroni
- Vascular Biology Unit, IFOM ETS-The AIRC Institute of Molecular Oncology, Milan, Italy; Hematology Department, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Jennifer M T A Meessen
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | - Ying Sun
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Silvia Lanfranconi
- Department of Neurology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Elisa Scola
- Department of Neurology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Neuroradiology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Quintino Giorgio D'Alessandris
- Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Department of Neuroscience, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Laura Tassi
- Claudio Munari Epilepsy Surgery Centre, ASST Niguarda Hospital, Milan, Italy
| | - Maria Rita Carriero
- Cerebrovascular Disease Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Marco Castori
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Silvia Marino
- IRCCS Centro Neurolesi "Bonino Pulejo", Messina, Italy
| | - Adriana Blanda
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | - Enrico B Nicolis
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | - Deborah Novelli
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | - Roberta Calabrese
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | - Nicolò M Agnelli
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | | | | | - Selene Mazzola
- Laboratory Medicine, Desio Hospital, Università Milano Bicocca, Milan, Italy
| | - Silvia Besana
- Laboratory Medicine, Desio Hospital, Università Milano Bicocca, Milan, Italy
| | - Carlotta Catozzi
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Milano, Italy
| | - Luigi Nezi
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Milano, Italy
| | - Maria G Lampugnani
- Vascular Biology Unit, IFOM ETS-The AIRC Institute of Molecular Oncology, Milan, Italy; Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
| | - Matteo Malinverno
- Vascular Biology Unit, IFOM ETS-The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Nastasja Grdseloff
- Department of Zoophysiology, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Claudia J Rödel
- Department of Zoophysiology, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | | | - Niccolò Bolli
- Hematology Department, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Oncology and Hemato-Oncology, University of Milan, 20122, Milan, Italy
| | - Francesco Passamonti
- Hematology Department, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Oncology and Hemato-Oncology, University of Milan, 20122, Milan, Italy
| | - Peetra U Magnusson
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Salim Abdelilah-Seyfried
- Department of Zoophysiology, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Elisabetta Dejana
- Vascular Biology Unit, IFOM ETS-The AIRC Institute of Molecular Oncology, Milan, Italy; Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Roberto Latini
- Department of Acute Brain and Cardiovascular Injury, Institute for Pharmacological Research Mario Negri IRCCS, Milan, Italy
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Paolini A, Sharipova D, Lange T, Abdelilah-Seyfried S. Correction: Wnt9 directs zebrafish heart tube assembly via a combination of canonical and non-canonical pathway signaling. Development 2023; 150:dev202439. [PMID: 37922126 PMCID: PMC10651095 DOI: 10.1242/dev.202439] [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: 11/05/2023]
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Paolini A, Sharipova D, Lange T, Abdelilah-Seyfried S. Wnt9 directs zebrafish heart tube assembly via a combination of canonical and non-canonical pathway signaling. Development 2023; 150:dev201707. [PMID: 37680191 PMCID: PMC10560569 DOI: 10.1242/dev.201707] [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: 02/16/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023]
Abstract
During zebrafish heart formation, cardiac progenitor cells converge at the embryonic midline where they form the cardiac cone. Subsequently, this structure transforms into a heart tube. Little is known about the molecular mechanisms that control these morphogenetic processes. Here, we use light-sheet microscopy and combine genetic, molecular biological and pharmacological tools to show that the paralogous genes wnt9a/b are required for the assembly of the nascent heart tube. In wnt9a/b double mutants, cardiomyocyte progenitor cells are delayed in their convergence towards the embryonic midline, the formation of the heart cone is impaired and the transformation into an elongated heart tube fails. The same cardiac phenotype occurs when both canonical and non-canonical Wnt signaling pathways are simultaneously blocked by pharmacological inhibition. This demonstrates that Wnt9a/b and canonical and non-canonical Wnt signaling regulate the migration of cardiomyocyte progenitor cells and control the formation of the cardiac tube. This can be partly attributed to their regulation of the timing of cardiac progenitor cell differentiation. Our study demonstrates how these morphogens activate a combination of downstream pathways to direct cardiac morphogenesis.
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Affiliation(s)
- Alessio Paolini
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Dinara Sharipova
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Tim Lange
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
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Gehlen J, Stundl A, Debiec R, Fontana F, Krane M, Sharipova D, Nelson CP, Al-Kassou B, Giel AS, Sinning JM, Bruenger CMH, Zelck CF, Koebbe LL, Braund PS, Webb TR, Hetherington S, Ensminger S, Fujita B, Mohamed SA, Shrestha M, Krueger H, Siepe M, Kari FA, Nordbeck P, Buravezky L, Kelm M, Veulemans V, Adam M, Baldus S, Laugwitz KL, Haas Y, Karck M, Mehlhorn U, Conzelmann LO, Breitenbach I, Lebherz C, Urbanski P, Kim WK, Kandels J, Ellinghaus D, Nowak-Goettl U, Hoffmann P, Wirth F, Doppler S, Lahm H, Dreßen M, von Scheidt M, Knoll K, Kessler T, Hengstenberg C, Schunkert H, Nickenig G, Nöthen MM, Bolger AP, Abdelilah-Seyfried S, Samani NJ, Erdmann J, Trenkwalder T, Schumacher J. Elucidation of the genetic causes of bicuspid aortic valve disease. Cardiovasc Res 2023; 119:857-866. [PMID: 35727948 PMCID: PMC10153415 DOI: 10.1093/cvr/cvac099] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS The present study aims to characterize the genetic risk architecture of bicuspid aortic valve (BAV) disease, the most common congenital heart defect. METHODS AND RESULTS We carried out a genome-wide association study (GWAS) including 2236 BAV patients and 11 604 controls. This led to the identification of a new risk locus for BAV on chromosome 3q29. The single nucleotide polymorphism rs2550262 was genome-wide significant BAV associated (P = 3.49 × 10-08) and was replicated in an independent case-control sample. The risk locus encodes a deleterious missense variant in MUC4 (p.Ala4821Ser), a gene that is involved in epithelial-to-mesenchymal transformation. Mechanistical studies in zebrafish revealed that loss of Muc4 led to a delay in cardiac valvular development suggesting that loss of MUC4 may also play a role in aortic valve malformation. The GWAS also confirmed previously reported BAV risk loci at PALMD (P = 3.97 × 10-16), GATA4 (P = 1.61 × 10-09), and TEX41 (P = 7.68 × 10-04). In addition, the genetic BAV architecture was examined beyond the single-marker level revealing that a substantial fraction of BAV heritability is polygenic and ∼20% of the observed heritability can be explained by our GWAS data. Furthermore, we used the largest human single-cell atlas for foetal gene expression and show that the transcriptome profile in endothelial cells is a major source contributing to BAV pathology. CONCLUSION Our study provides a deeper understanding of the genetic risk architecture of BAV formation on the single marker and polygenic level.
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Affiliation(s)
- Jan Gehlen
- Institute of Human Genetics, University of Bonn and University Hospital Bonn, Bonn, Germany
- Institute of Human Genetics, Philipps University of Marburg, Marburg, Germany
| | - Anja Stundl
- Department of Medicine II, Heart Center Bonn, University of Bonn and University Hospital Bonn, Bonn, Germany
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Radoslaw Debiec
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
- East Midlands Congenital Heart Centre, Glenfield Hospital, Leicester, UK
| | - Federica Fontana
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Markus Krane
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Division of Experimental Surgery, Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, TUM School of Medicine, Technical University of Munich, Munich, Germany
- Division of Cardiac Surgery, Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Dinara Sharipova
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Christopher P Nelson
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Baravan Al-Kassou
- Department of Medicine II, Heart Center Bonn, University of Bonn and University Hospital Bonn, Bonn, Germany
| | - Ann-Sophie Giel
- Institute of Human Genetics, Philipps University of Marburg, Marburg, Germany
| | - Jan-Malte Sinning
- Department of Medicine II, Heart Center Bonn, University of Bonn and University Hospital Bonn, Bonn, Germany
| | | | - Carolin F Zelck
- Institute of Human Genetics, Philipps University of Marburg, Marburg, Germany
| | - Laura L Koebbe
- Institute of Human Genetics, Philipps University of Marburg, Marburg, Germany
| | - Peter S Braund
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Thomas R Webb
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | | | - Stephan Ensminger
- Department of Cardiac and Thoracic Vascular Surgery, University Heart Center Lübeck, University Hospital of Schleswig-Holstein, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Buntaro Fujita
- Department of Cardiac and Thoracic Vascular Surgery, University Heart Center Lübeck, University Hospital of Schleswig-Holstein, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Salah A Mohamed
- Department of Cardiac and Thoracic Vascular Surgery, University Heart Center Lübeck, University Hospital of Schleswig-Holstein, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Malakh Shrestha
- Department of Adult and Pediatric Cardiothoracic Surgery, Vascular Surgery, Heart and Lung Transplantation, Hannover Medical School, Hannover, Germany
| | - Heike Krueger
- Department of Adult and Pediatric Cardiothoracic Surgery, Vascular Surgery, Heart and Lung Transplantation, Hannover Medical School, Hannover, Germany
| | - Matthias Siepe
- Heart Center Freiburg/Bad Krozingen, University Freiburg/Bad Krozingen, Freiburg, Germany
| | - Fabian Alexander Kari
- Heart Center Freiburg/Bad Krozingen, University Freiburg/Bad Krozingen, Freiburg, Germany
| | - Peter Nordbeck
- Medizinische Klinik und Poliklinik I, University Hospital Würzburg, Würzburg, Germany
| | - Larissa Buravezky
- Medizinische Klinik und Poliklinik I, University Hospital Würzburg, Würzburg, Germany
| | - Malte Kelm
- Department of Cardiology, Pneumology and Angiology, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Verena Veulemans
- Department of Cardiology, Pneumology and Angiology, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Matti Adam
- Department of Medicine III, Heart Center Cologne, University Hospital Cologne, Cologne, Germany
| | - Stephan Baldus
- Department of Medicine III, Heart Center Cologne, University Hospital Cologne, Cologne, Germany
| | - Karl-Ludwig Laugwitz
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Yannick Haas
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Matthias Karck
- Department of Cardiothoracic Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Uwe Mehlhorn
- Department of Cardiothoracic Surgery, Helios Klinik Karlsruhe, Karlsruhe, Germany
| | | | - Ingo Breitenbach
- Department of Cardiothoracic Surgery and Vascular Surgery, Clinic of Braunschweig, Braunschweig, Germany
| | - Corinna Lebherz
- Department of Medicine I, Cardiology/Angiology/Intensive Care, University Hospital Aachen, Aachen, Germany
| | - Paul Urbanski
- Department of Cardiovascular Surgery, Cardiovascular Clinic, Rhön-Klinikum Campus Bad Neustadt, Neustadt, Germany
| | - Won-Keun Kim
- Department of Cardiology, Heart Center, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Joscha Kandels
- Department of Cardiology, University Hospital Leipzig, Leipzig, Germany
| | - David Ellinghaus
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel, Germany
- Novo Nordisk Foundation Center for Protein Research, Disease Systems Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ulrike Nowak-Goettl
- Department of Clinical Chemistry, Thrombosis and Hemostasis Unit, University Hospital of Kiel and Lübeck, Kiel, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn and University Hospital Bonn, Bonn, Germany
| | - Felix Wirth
- Division of Experimental Surgery, Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Stefanie Doppler
- Division of Experimental Surgery, Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Harald Lahm
- Division of Experimental Surgery, Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Martina Dreßen
- Division of Experimental Surgery, Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Moritz von Scheidt
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Department of Cardiology, German Heart Centre Munich, Technical University of Munich, Munich, Germany
| | - Katharina Knoll
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Department of Cardiology, German Heart Centre Munich, Technical University of Munich, Munich, Germany
| | - Thorsten Kessler
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Department of Cardiology, German Heart Centre Munich, Technical University of Munich, Munich, Germany
| | - Christian Hengstenberg
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Heribert Schunkert
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Department of Cardiology, German Heart Centre Munich, Technical University of Munich, Munich, Germany
| | - Georg Nickenig
- Department of Medicine II, Heart Center Bonn, University of Bonn and University Hospital Bonn, Bonn, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn and University Hospital Bonn, Bonn, Germany
| | - Aidan P Bolger
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
- East Midlands Congenital Heart Centre, Glenfield Hospital, Leicester, UK
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
- Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Jeanette Erdmann
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- Institute for Cardiogenetics, University Heart Centre Lübeck, University of Lübeck, Lübeck, Germany
| | - Teresa Trenkwalder
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Department of Cardiology, German Heart Centre Munich, Technical University of Munich, Munich, Germany
| | - Johannes Schumacher
- Institute of Human Genetics, University of Bonn and University Hospital Bonn, Bonn, Germany
- Institute of Human Genetics, Philipps University of Marburg, Marburg, Germany
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7
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Grdseloff N, Boulday G, Rödel CJ, Otten C, Vannier DR, Cardoso C, Faurobert E, Dogra D, Tournier-Lasserve E, Abdelilah-Seyfried S. Impaired retinoic acid signaling in cerebral cavernous malformations. Sci Rep 2023; 13:5572. [PMID: 37019926 PMCID: PMC10076292 DOI: 10.1038/s41598-023-31905-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 03/20/2023] [Indexed: 04/07/2023] Open
Abstract
The capillary-venous pathology cerebral cavernous malformation (CCM) is caused by loss of CCM1/Krev interaction trapped protein 1 (KRIT1), CCM2/MGC4607, or CCM3/PDCD10 in some endothelial cells. Mutations of CCM genes within the brain vasculature can lead to recurrent cerebral hemorrhages. Pharmacological treatment options are urgently needed when lesions are located in deeply-seated and in-operable regions of the central nervous system. Previous pharmacological suppression screens in disease models of CCM led to the discovery that treatment with retinoic acid improved CCM phenotypes. This finding raised a need to investigate the involvement of retinoic acid in CCM and test whether it has a curative effect in preclinical mouse models. Here, we show that components of the retinoic acid synthesis and degradation pathway are transcriptionally misregulated across disease models of CCM. We complemented this analysis by pharmacologically modifying retinoic acid levels in zebrafish and human endothelial cell models of CCM, and in acute and chronic mouse models of CCM. Our pharmacological intervention studies in CCM2-depleted human umbilical vein endothelial cells (HUVECs) and krit1 mutant zebrafish showed positive effects when retinoic acid levels were increased. However, therapeutic approaches to prevent the development of vascular lesions in adult chronic murine models of CCM were drug regiment-sensitive, possibly due to adverse developmental effects of this hormone. A treatment with high doses of retinoic acid even worsened CCM lesions in an adult chronic murine model of CCM. This study provides evidence that retinoic acid signaling is impaired in the CCM pathophysiology and suggests that modification of retinoic acid levels can alleviate CCM phenotypes.
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Affiliation(s)
- Nastasja Grdseloff
- Institute of Biochemistry and Biology, Department of Zoophysiology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany
| | - Gwenola Boulday
- InsermNeuroDiderot, Université Paris Cité, 75019, Paris, France
| | - Claudia J Rödel
- Institute of Biochemistry and Biology, Department of Zoophysiology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany
| | - Cécile Otten
- Institute of Biochemistry and Biology, Department of Zoophysiology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany
- Institut Ruđer Bošković, Bijenička cesta 54, 10000, Zagreb, Croatia
| | - Daphné Raphaelle Vannier
- Institute for Advanced Biosciences, INSERM 1209 CNRS, University Grenoble Alpes, 5309, Grenoble, France
| | - Cécile Cardoso
- InsermNeuroDiderot, Université Paris Cité, 75019, Paris, France
| | - Eva Faurobert
- Institute for Advanced Biosciences, INSERM 1209 CNRS, University Grenoble Alpes, 5309, Grenoble, France
| | - Deepika Dogra
- Institute of Biochemistry and Biology, Department of Zoophysiology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Elisabeth Tournier-Lasserve
- InsermNeuroDiderot, Université Paris Cité, 75019, Paris, France
- Service de Génétique Neurovasculaire, AP-HP, Hôpital Saint-Louis, 75010, Paris, France
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Department of Zoophysiology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany.
- Institute of Molecular Biology, Hannover Medical School, Hannover, Germany.
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8
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Vedder VL, Reinberger T, Haider SMI, Eichelmann L, Odenthal N, Abdelilah-Seyfried S, Aherrahrou Z, Breuer M, Erdmann J. pyHeart4Fish: Chamber-specific heart phenotype quantification of zebrafish in high-content screens. Front Cell Dev Biol 2023; 11:1143852. [PMID: 37113769 PMCID: PMC10126419 DOI: 10.3389/fcell.2023.1143852] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/29/2023] [Indexed: 04/29/2023] Open
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death. Of CVDs, congenital heart diseases are the most common congenital defects, with a prevalence of 1 in 100 live births. Despite the widespread knowledge that prenatal and postnatal drug exposure can lead to congenital abnormalities, the developmental toxicity of many FDA-approved drugs is rarely investigated. Therefore, to improve our understanding of drug side effects, we performed a high-content drug screen of 1,280 compounds using zebrafish as a model for cardiovascular analyses. Zebrafish are a well-established model for CVDs and developmental toxicity. However, flexible open-access tools to quantify cardiac phenotypes are lacking. Here, we provide pyHeart4Fish, a novel Python-based, platform-independent tool with a graphical user interface for automated quantification of cardiac chamber-specific parameters, such as heart rate (HR), contractility, arrhythmia score, and conduction score. In our study, about 10.5% of the tested drugs significantly affected HR at a concentration of 20 µM in zebrafish embryos at 2 days post-fertilization. Further, we provide insights into the effects of 13 compounds on the developing embryo, including the teratogenic effects of the steroid pregnenolone. In addition, analysis with pyHeart4Fish revealed multiple contractility defects induced by seven compounds. We also found implications for arrhythmias, such as atrioventricular block caused by chloropyramine HCl, as well as (R)-duloxetine HCl-induced atrial flutter. Taken together, our study presents a novel open-access tool for heart analysis and new data on potentially cardiotoxic compounds.
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Affiliation(s)
- Viviana L. Vedder
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
- *Correspondence: Viviana L. Vedder,
| | - Tobias Reinberger
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
| | - Syed M. I. Haider
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
| | - Luis Eichelmann
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
| | - Nadine Odenthal
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
| | - Salim Abdelilah-Seyfried
- Faculty of Mathematics and Natural Sciences, Institute for Biochemistry and Biology, University Potsdam, Potsdam, Germany
| | - Zouhair Aherrahrou
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
| | - Maximilian Breuer
- Faculty of Mathematics and Natural Sciences, Institute for Biochemistry and Biology, University Potsdam, Potsdam, Germany
| | - Jeanette Erdmann
- Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- University Heart Centre Lübeck, Lübeck, Germany
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9
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Abdelilah-Seyfried S, Iruela-Arispe ML, Penninger JM, Tournier-Lasserve E, Vikkula M, Cleaver O. Recalibrating vascular malformations and mechanotransduction by pharmacological intervention. J Clin Invest 2022; 132:160227. [PMID: 35426368 PMCID: PMC9012280 DOI: 10.1172/jci160227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
| | - M. Luisa Iruela-Arispe
- Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Josef M. Penninger
- Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Elisabeth Tournier-Lasserve
- INSERM UMR 1141 Neurodiderot, University of Paris, Paris, France
- AP-HP, Department of Genetics of Neurovascular Diseases, Hôpital Saint-Louis, Paris, France
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, Brussels, Belgium
| | - Ondine Cleaver
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, Texas, USA
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10
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Paolini A, Fontana F, Pham VC, Rödel CJ, Abdelilah-Seyfried S. Mechanosensitive Notch-Dll4 and Klf2-Wnt9 signaling pathways intersect in guiding valvulogenesis in zebrafish. Cell Rep 2021; 37:109782. [PMID: 34610316 PMCID: PMC8511505 DOI: 10.1016/j.celrep.2021.109782] [Citation(s) in RCA: 17] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 08/11/2021] [Accepted: 09/10/2021] [Indexed: 12/27/2022] Open
Abstract
In the zebrafish embryo, the onset of blood flow generates fluid shear stress on endocardial cells, which are specialized endothelial cells that line the interior of the heart. High levels of fluid shear stress activate both Notch and Klf2 signaling, which play crucial roles in atrioventricular valvulogenesis. However, it remains unclear why only individual endocardial cells ingress into the cardiac jelly and initiate valvulogenesis. Here, we show that lateral inhibition between endocardial cells, mediated by Notch, singles out Delta-like-4-positive endocardial cells. These cells ingress into the cardiac jelly, where they form an abluminal cell population. Delta-like-4-positive cells ingress in response to Wnt9a, which is produced in parallel through an Erk5-Klf2-Wnt9a signaling cascade also activated by blood flow. Hence, mechanical stimulation activates parallel mechanosensitive signaling pathways that produce binary effects by driving endocardial cells toward either luminal or abluminal fates. Ultimately, these cell fate decisions sculpt cardiac valve leaflets.
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Affiliation(s)
- Alessio Paolini
- Institute of Biochemistry and Biology, Potsdam University, 14476 Potsdam, Germany
| | - Federica Fontana
- Institute of Biochemistry and Biology, Potsdam University, 14476 Potsdam, Germany
| | - Van-Cuong Pham
- Institute of Biochemistry and Biology, Potsdam University, 14476 Potsdam, Germany
| | - Claudia Jasmin Rödel
- Institute of Biochemistry and Biology, Potsdam University, 14476 Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, 14476 Potsdam, Germany; Institute of Molecular Biology, Hannover Medical School, 30625 Hannover, Germany.
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11
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Bornhorst D, Abdelilah-Seyfried S. Strong as a Hippo's Heart: Biomechanical Hippo Signaling During Zebrafish Cardiac Development. Front Cell Dev Biol 2021; 9:731101. [PMID: 34422841 PMCID: PMC8375320 DOI: 10.3389/fcell.2021.731101] [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: 06/26/2021] [Accepted: 07/20/2021] [Indexed: 11/13/2022] Open
Abstract
The heart is comprised of multiple tissues that contribute to its physiological functions. During development, the growth of myocardium and endocardium is coupled and morphogenetic processes within these separate tissue layers are integrated. Here, we discuss the roles of mechanosensitive Hippo signaling in growth and morphogenesis of the zebrafish heart. Hippo signaling is involved in defining numbers of cardiac progenitor cells derived from the secondary heart field, in restricting the growth of the epicardium, and in guiding trabeculation and outflow tract formation. Recent work also shows that myocardial chamber dimensions serve as a blueprint for Hippo signaling-dependent growth of the endocardium. Evidently, Hippo pathway components act at the crossroads of various signaling pathways involved in embryonic zebrafish heart development. Elucidating how biomechanical Hippo signaling guides heart morphogenesis has direct implications for our understanding of cardiac physiology and pathophysiology.
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Affiliation(s)
- Dorothee Bornhorst
- Stem Cell Program, Division of Hematology and Oncology, Boston Children's Hospital, Boston, MA, United States.,Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, United States
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hanover, Germany
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12
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Abstract
PURPOSE OF REVIEW The zebrafish embryo has emerged as a powerful model organism to investigate the mechanisms by which biophysical forces regulate vascular and cardiac cell biology during development and disease. A versatile arsenal of methods and tools is available to manipulate and analyze biomechanical signaling. This review aims to provide an overview of the experimental strategies and tools that have been utilized to study biomechanical signaling in cardiovascular developmental processes and different vascular disease models in the zebrafish embryo. Within the scope of this review, we focus on work published during the last two years. RECENT FINDINGS Genetic and pharmacological tools for the manipulation of cardiac function allow alterations of hemodynamic flow patterns in the zebrafish embryo and various types of transgenic lines are available to report endothelial cell responses to biophysical forces. These tools have not only revealed the impact of biophysical forces on cardiovascular development but also helped to establish more accurate models for cardiovascular diseases including cerebral cavernous malformations, hereditary hemorrhagic telangiectasias, arteriovenous malformations, and lymphangiopathies. SUMMARY The zebrafish embryo is a valuable vertebrate model in which in-vivo manipulations of biophysical forces due to cardiac contractility and blood flow can be performed. These analyses give important insights into biomechanical signaling pathways that control endothelial and endocardial cell behaviors. The technical advances using this vertebrate model will advance our understanding of the impact of biophysical forces in cardiovascular pathologies.
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Affiliation(s)
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
- Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
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13
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Fontana F, Haack T, Reichenbach M, Knaus P, Puceat M, Abdelilah-Seyfried S. Antagonistic Activities of Vegfr3/Flt4 and Notch1b Fine-tune Mechanosensitive Signaling during Zebrafish Cardiac Valvulogenesis. Cell Rep 2021; 32:107883. [PMID: 32668254 DOI: 10.1016/j.celrep.2020.107883] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 01/22/2020] [Revised: 04/10/2020] [Accepted: 06/17/2020] [Indexed: 12/22/2022] Open
Abstract
The formation of cardiac valves depends on mechanical forces exerted by blood flow. Endocardial cells lining the interior of the heart are sensitive to these stimuli and respond by rearranging into luminal cells subjected to shear stress and abluminal cells not exposed to it. The mechanisms by which endocardial cells sense these dynamic biomechanical stimuli and how they evoke different cellular responses are largely unknown. Here, we show that blood flow activates two parallel mechanosensitive pathways, one mediated by Notch and the other by Klf2a. Both pathways negatively regulate the angiogenesis receptor Vegfr3/Flt4, which becomes restricted to abluminal endocardial cells. Its loss disrupts valve morphogenesis and results in the occurrence of Notch signaling within abluminal endocardial cells. Our work explains how antagonistic activities by Vegfr3/Flt4 on the abluminal side and by Notch on the luminal side shape cardiac valve leaflets by triggering unique differences in the fates of endocardial cells.
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Affiliation(s)
- Federica Fontana
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Timm Haack
- Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany
| | - Maria Reichenbach
- Institute of Biochemistry, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Petra Knaus
- Institute of Biochemistry, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Michel Puceat
- INSERM U-1251, MMG, Aix-Marseille University, 13885 Marseille, France
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany; Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany.
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14
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Münch J, Abdelilah-Seyfried S. Sensing and Responding of Cardiomyocytes to Changes of Tissue Stiffness in the Diseased Heart. Front Cell Dev Biol 2021; 9:642840. [PMID: 33718383 PMCID: PMC7952448 DOI: 10.3389/fcell.2021.642840] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/09/2021] [Indexed: 12/20/2022] Open
Abstract
Cardiomyocytes are permanently exposed to mechanical stimulation due to cardiac contractility. Passive myocardial stiffness is a crucial factor, which defines the physiological ventricular compliance and volume of diastolic filling with blood. Heart diseases often present with increased myocardial stiffness, for instance when fibrotic changes modify the composition of the cardiac extracellular matrix (ECM). Consequently, the ventricle loses its compliance, and the diastolic blood volume is reduced. Recent advances in the field of cardiac mechanobiology revealed that disease-related environmental stiffness changes cause severe alterations in cardiomyocyte cellular behavior and function. Here, we review the molecular mechanotransduction pathways that enable cardiomyocytes to sense stiffness changes and translate those into an altered gene expression. We will also summarize current knowledge about when myocardial stiffness increases in the diseased heart. Sophisticated in vitro studies revealed functional changes, when cardiomyocytes faced a stiffer matrix. Finally, we will highlight recent studies that described modulations of cardiac stiffness and thus myocardial performance in vivo. Mechanobiology research is just at the cusp of systematic investigations related to mechanical changes in the diseased heart but what is known already makes way for new therapeutic approaches in regenerative biology.
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Affiliation(s)
- Juliane Münch
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
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15
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Yang Z, Wu S, Fontana F, Li Y, Xiao W, Gao Z, Krudewig A, Affolter M, Belting HG, Abdelilah-Seyfried S, Zhang J. The tight junction protein Claudin-5 limits endothelial cell motility. J Cell Sci 2021; 134:jcs248237. [PMID: 33323504 DOI: 10.1242/jcs.248237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 11/26/2020] [Indexed: 12/26/2022] Open
Abstract
Steinberg's differential adhesion hypothesis suggests that adhesive mechanisms are important for sorting of cells and tissues during morphogenesis (Steinberg, 2007). During zebrafish vasculogenesis, endothelial cells sort into arterial and venous vessel beds but it is unknown whether this involves adhesive mechanisms. Claudins are tight junction proteins regulating the permeability of epithelial and endothelial tissue barriers. Previously, the roles of claudins during organ development have exclusively been related to their canonical functions in determining paracellular permeability. Here, we use atomic force microscopy to quantify claudin-5-dependent adhesion and find that this strongly contributes to the adhesive forces between arterial endothelial cells. Based on genetic manipulations, we reveal a non-canonical role of Claudin-5a during zebrafish vasculogenesis, which involves the regulation of adhesive forces between adjacent dorsal aortic endothelial cells. In vitro and in vivo studies demonstrate that loss of claudin-5 results in increased motility of dorsal aorta endothelial cells and in a failure of the dorsal aorta to lumenize. Our findings uncover a novel role of claudin-5 in limiting arterial endothelial cell motility, which goes beyond its traditional sealing function during embryonic development.
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Affiliation(s)
- Zhenguo Yang
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease, Guangdong Medical University, Zhanjiang 524001, China
| | - Shuilong Wu
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease, Guangdong Medical University, Zhanjiang 524001, China
| | - Federica Fontana
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Yanyu Li
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease, Guangdong Medical University, Zhanjiang 524001, China
| | - Wei Xiao
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease, Guangdong Medical University, Zhanjiang 524001, China
| | - Zhangdai Gao
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease, Guangdong Medical University, Zhanjiang 524001, China
| | - Alice Krudewig
- Department of Cell Biology, Biozentrum der Universität Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland
| | - Markus Affolter
- Department of Cell Biology, Biozentrum der Universität Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland
| | - Heinz-Georg Belting
- Department of Cell Biology, Biozentrum der Universität Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
- Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Str. 1, D-30625 Hannover, Germany
| | - Jingjing Zhang
- Affiliated Hospital of Guangdong Medical University & Key Laboratory of Zebrafish Model for Development and Disease, Guangdong Medical University, Zhanjiang 524001, China
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16
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Flinn MA, Otten C, Brandt ZJ, Bostrom JR, Kenarsary A, Wan TC, Auchampach JA, Abdelilah-Seyfried S, O'Meara CC, Link BA. Llgl1 regulates zebrafish cardiac development by mediating Yap stability in cardiomyocytes. Development 2020; 147:147/16/dev193581. [PMID: 32843528 DOI: 10.1242/dev.193581] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/10/2020] [Indexed: 01/19/2023]
Abstract
The Hippo-Yap pathway regulates multiple cellular processes in response to mechanical and other stimuli. In Drosophila, the polarity protein Lethal (2) giant larvae [L(2)gl], negatively regulates Hippo-mediated transcriptional output. However, in vertebrates, little is known about its homolog Llgl1. Here, we define a novel role for vertebrate Llgl1 in regulating Yap stability in cardiomyocytes, which impacts heart development. In contrast to the role of Drosophila L(2)gl, Llgl1 depletion in cultured rat cardiomyocytes decreased Yap protein levels and blunted target gene transcription without affecting Yap transcript abundance. Llgl1 depletion in zebrafish resulted in larger and dysmorphic cardiomyocytes, pericardial effusion, impaired blood flow and aberrant valvulogenesis. Cardiomyocyte Yap protein levels were decreased in llgl1 morphants, whereas Notch, which is regulated by hemodynamic forces and participates in valvulogenesis, was more broadly activated. Consistent with the role of Llgl1 in regulating Yap stability, cardiomyocyte-specific overexpression of Yap in Llgl1-depleted embryos ameliorated pericardial effusion and restored blood flow velocity. Altogether, our data reveal that vertebrate Llgl1 is crucial for Yap stability in cardiomyocytes and its absence impairs cardiac development.
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Affiliation(s)
- Michael A Flinn
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Cécile Otten
- Institute for Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
| | - Zachary J Brandt
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Jonathan R Bostrom
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Aria Kenarsary
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Genomics Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Tina C Wan
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Department of Pharmacology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - John A Auchampach
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Department of Pharmacology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Salim Abdelilah-Seyfried
- Institute for Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany.,Institute for Molecular Biology, Hannover Medical School, 30625 Hannover, Germany
| | - Caitlin C O'Meara
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226, USA.,Genomics Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Brian A Link
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USA .,Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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17
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Abdelilah-Seyfried S, Tournier-Lasserve E, Derry WB. Blocking Signalopathic Events to Treat Cerebral Cavernous Malformations. Trends Mol Med 2020; 26:874-887. [PMID: 32692314 DOI: 10.1016/j.molmed.2020.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/03/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022]
Abstract
Cerebral cavernous malformations (CCMs) are pathologies of the brain vasculature characterized by capillary-venous angiomas that result in recurrent cerebral hemorrhages. Familial forms are caused by a clonal loss of any of three CCM genes in endothelial cells, which causes the activation of a novel pathophysiological pathway involving mitogen-activated protein kinase and Krüppel-like transcription factor KLF2/4 signaling. Recent work has shown that cavernomas can undergo strong growth when CCM-deficient endothelial cells recruit wild-type neighbors through the secretion of cytokines. This suggests a treatment strategy based on targeting signalopathic events between CCM-deficient endothelial cells and their environment. Such approaches will have to consider recent evidence implicating 'third hits' from hypoxia-induced angiogenesis signaling or the microbiome in modulating the development of cerebral hemorrhages.
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Affiliation(s)
- Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany; Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, D-30625 Hannover, Germany.
| | - Elisabeth Tournier-Lasserve
- INSERM UMR-1141, NeuroDiderot, Université de Paris, Paris, France; AP-HP, Groupe hospitalier Saint-Louis, Lariboisière, Fernand-Widal, Service de génétique moléculaire neuro-vasculaire, Paris, France
| | - W Brent Derry
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada M5S 1A8; Developmental and Cell Biology Program, The Hospital for Sick Children, 686 Bay Street, Toronto, Ontario, Canada M5G 0A4
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18
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Cardoso C, Arnould M, De Luca C, Otten C, Abdelilah-Seyfried S, Heredia A, Leutenegger AL, Schwaninger M, Tournier-Lasserve E, Boulday G. Novel Chronic Mouse Model of Cerebral Cavernous Malformations. Stroke 2020; 51:1272-1278. [PMID: 31992178 DOI: 10.1161/strokeaha.119.027207] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background and Purpose- Cerebral cavernous malformations (CCMs) are vascular malformations of the brain that lead to cerebral hemorrhages. A pharmacological treatment is needed especially for patients with nonoperable deep-seated lesions. We and others obtained CCM mouse models that were useful for mechanistic studies and rapid trials testing the preventive effects of candidate drugs. The shortened lifespan of acute mouse models hampered evaluation of compounds that would not only prevent lesion appearance but also cure preexisting lesions. Indirubin-3'-monoxime previously demonstrated its efficacy to reverse the cardiac phenotype of ccm2m201 zebrafish mutants and to prevent lesion development in an acute CCM2 mouse model. In the present article, we developed and characterized a novel chronic CCM2 mouse model and evaluated the curative therapeutic effect of indirubin-3'-monoxime after CCM lesion development. Methods- The chronic mouse model was obtained by a postnatal induction of brain-endothelial-cell-specific ablation of the Ccm2 gene using the inducible Slco1c1-CreERT2 mouse line. Results- We obtained a fully penetrant novel CCM chronic mouse model without any obvious off-target phenotypes and compatible with long-term survival. By 3 months of age, CCM lesions ranging in size from small isolated lesions to multiple caverns developed throughout the brain. Lesion burden was quantified in animals from 1 week to 5 months of age. Clear signs of intracerebral hemorrhages were noticed in brain-endothelial-cell-specific ablation of the Ccm2 gene. In contrast with its preventive effect in the acute CCM2 mouse model, a 20 mg/kg indirubin-3'-monoxime treatment for 3 weeks in 3-month old animals neither had any beneficial effect on the lesion burden nor alleviated cerebral hemorrhages. Conclusions- The brain-endothelial-cell-specific ablation of the Ccm2 gene chronic model is a strongly improved disease model for the CCM community whose challenge today is to decipher which candidate drugs might have a curative effect on patients' preexisting lesions. Visual Overview- An online visual overview is available for this article.
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Affiliation(s)
- Cécile Cardoso
- From the Université de Paris, NeuroDiderot, Inserm, Paris, France (C.C., M.A., C.D.L., A.-L.L., E.T.-L., G.B.)
| | - Minh Arnould
- From the Université de Paris, NeuroDiderot, Inserm, Paris, France (C.C., M.A., C.D.L., A.-L.L., E.T.-L., G.B.)
| | - Coralie De Luca
- From the Université de Paris, NeuroDiderot, Inserm, Paris, France (C.C., M.A., C.D.L., A.-L.L., E.T.-L., G.B.)
| | - Cécile Otten
- Institute of Biochemistry and Biology, Potsdam University, Germany (C.O., S.A.-S.)
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Germany (C.O., S.A.-S.).,Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, Germany (S.A.-S.)
| | - Alonso Heredia
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore (A.H.)
| | - Anne-Louise Leutenegger
- From the Université de Paris, NeuroDiderot, Inserm, Paris, France (C.C., M.A., C.D.L., A.-L.L., E.T.-L., G.B.)
| | - Markus Schwaninger
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Germany (M.S.)
| | - Elisabeth Tournier-Lasserve
- From the Université de Paris, NeuroDiderot, Inserm, Paris, France (C.C., M.A., C.D.L., A.-L.L., E.T.-L., G.B.).,Service de Génétique, AP-HP, Hopital Lariboisière, Paris, France (E.T.-L.)
| | - Gwénola Boulday
- From the Université de Paris, NeuroDiderot, Inserm, Paris, France (C.C., M.A., C.D.L., A.-L.L., E.T.-L., G.B.)
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19
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Abdelilah-Seyfried S, Rödel CJ. Blood Flow Matters in a Zebrafish Model of Cerebral Cavernous Malformations. Circ Res 2020; 126:e1-e2. [PMID: 31895666 DOI: 10.1161/circresaha.119.316286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Salim Abdelilah-Seyfried
- From the Institute of Biochemistry and Biology, Potsdam University, Germany (S.A.-S., C.J.R.).,Institute of Molecular Biology, Hannover Medical School, Germany (S.A.-S.)
| | - Claudia Jasmin Rödel
- From the Institute of Biochemistry and Biology, Potsdam University, Germany (S.A.-S., C.J.R.)
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20
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Tang AT, Sullivan KR, Hong CC, Goddard LM, Mahadevan A, Ren A, Pardo H, Peiper A, Griffin E, Tanes C, Mattei LM, Yang J, Li L, Mericko-Ishizuka P, Shen L, Hobson N, Girard R, Lightle R, Moore T, Shenkar R, Polster SP, Rödel CJ, Li N, Zhu Q, Whitehead KJ, Zheng X, Akers A, Morrison L, Kim H, Bittinger K, Lengner CJ, Schwaninger M, Velcich A, Augenlicht L, Abdelilah-Seyfried S, Min W, Marchuk DA, Awad IA, Kahn ML. Distinct cellular roles for PDCD10 define a gut-brain axis in cerebral cavernous malformation. Sci Transl Med 2019; 11:eaaw3521. [PMID: 31776290 PMCID: PMC6937779 DOI: 10.1126/scitranslmed.aaw3521] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 07/17/2019] [Accepted: 10/09/2019] [Indexed: 12/11/2022]
Abstract
Cerebral cavernous malformation (CCM) is a genetic, cerebrovascular disease. Familial CCM is caused by genetic mutations in KRIT1, CCM2, or PDCD10 Disease onset is earlier and more severe in individuals with PDCD10 mutations. Recent studies have shown that lesions arise from excess mitogen-activated protein kinase kinase kinase 3 (MEKK3) signaling downstream of Toll-like receptor 4 (TLR4) stimulation by lipopolysaccharide derived from the gut microbiome. These findings suggest a gut-brain CCM disease axis but fail to define it or explain the poor prognosis of patients with PDCD10 mutations. Here, we demonstrate that the gut barrier is a primary determinant of CCM disease course, independent of microbiome configuration, that explains the increased severity of CCM disease associated with PDCD10 deficiency. Chemical disruption of the gut barrier with dextran sulfate sodium augments CCM formation in a mouse model, as does genetic loss of Pdcd10, but not Krit1, in gut epithelial cells. Loss of gut epithelial Pdcd10 results in disruption of the colonic mucosal barrier. Accordingly, loss of Mucin-2 or exposure to dietary emulsifiers that reduce the mucus barrier increases CCM burden analogous to loss of Pdcd10 in the gut epithelium. Last, we show that treatment with dexamethasone potently inhibits CCM formation in mice because of the combined effect of action at both brain endothelial cells and gut epithelial cells. These studies define a gut-brain disease axis in an experimental model of CCM in which a single gene is required for two critical components: gut epithelial function and brain endothelial signaling.
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Affiliation(s)
- Alan T Tang
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Katie R Sullivan
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Courtney C Hong
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Lauren M Goddard
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Aparna Mahadevan
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Aileen Ren
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Heidy Pardo
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Amy Peiper
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Erin Griffin
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ceylan Tanes
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Lisa M Mattei
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Jisheng Yang
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Li Li
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Patricia Mericko-Ishizuka
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA
| | - Le Shen
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Nicholas Hobson
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Romuald Girard
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Rhonda Lightle
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Thomas Moore
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Robert Shenkar
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Sean P Polster
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Claudia J Rödel
- Institute for Biochemistry and Biology, Department of Animal Physiology, Potsdam University, Karl-Liebknecht-Str. 24-25, Haus 26, 14476 Potsdam, Germany
| | - Ning Li
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Qin Zhu
- Graduate Group in Genomics and Computational Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kevin J Whitehead
- Division of Cardiovascular Medicine and the Program in Molecular Medicine, University of Utah, Salt Lake City, UT 84112, USA
| | - Xiangjian Zheng
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
- Centenary Institute, Sydney Medical School, University of Sydney, Sydney, NSW 2050, Australia
| | - Amy Akers
- Angioma Alliance, Norfolk, VA 23517, USA
| | - Leslie Morrison
- Department of Neurology and Pediatrics, University of New Mexico, Albuquerque, NM 87106, USA
| | - Helen Kim
- Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Christopher J Lengner
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Markus Schwaninger
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, 23562 Lübeck, Germany
| | - Anna Velcich
- Department of Cell Biology, Albert Einstein College of Medicine/Albert Einstein Cancer Center, NY 10461, USA
| | - Leonard Augenlicht
- Department of Cell Biology, Albert Einstein College of Medicine/Albert Einstein Cancer Center, NY 10461, USA
| | - Salim Abdelilah-Seyfried
- Institute for Biochemistry and Biology, Department of Animal Physiology, Potsdam University, Karl-Liebknecht-Str. 24-25, Haus 26, 14476 Potsdam, Germany
- Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Str. 1, D-30625 Hannover, Germany
| | - Wang Min
- Department of Pathology and the Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Douglas A Marchuk
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Issam A Awad
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago School of Medicine and Biological Sciences, Chicago, IL 60637, USA
| | - Mark L Kahn
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104, USA.
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21
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Lombardo VA, Heise M, Moghtadaei M, Bornhorst D, Männer J, Abdelilah-Seyfried S. Morphogenetic control of zebrafish cardiac looping by Bmp signaling. Development 2019; 146:dev.180091. [PMID: 31628109 DOI: 10.1242/dev.180091] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 10/15/2019] [Indexed: 12/23/2022]
Abstract
Cardiac looping is an essential and highly conserved morphogenetic process that places the different regions of the developing vertebrate heart tube into proximity of their final topographical positions. High-resolution 4D live imaging of mosaically labelled cardiomyocytes reveals distinct cardiomyocyte behaviors that contribute to the deformation of the entire heart tube. Cardiomyocytes acquire a conical cell shape, which is most pronounced at the superior wall of the atrioventricular canal and contributes to S-shaped bending. Torsional deformation close to the outflow tract contributes to a torque-like winding of the entire heart tube between its two poles. Anisotropic growth of cardiomyocytes based on their positions reinforces S-shaping of the heart. During cardiac looping, bone morphogenetic protein pathway signaling is strongest at the future superior wall of the atrioventricular canal. Upon pharmacological or genetic inhibition of bone morphogenetic protein signaling, myocardial cells at the superior wall of the atrioventricular canal maintain cuboidal cell shapes and S-shaped bending is impaired. This description of cellular rearrangements and cardiac looping regulation may also be relevant for understanding the etiology of human congenital heart defects.
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Affiliation(s)
- Verónica A Lombardo
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad Nacional de Rosario, 2000 Rosario, Argentina .,Centro de Estudios Interdisciplinarios, Universidad Nacional de Rosario, 2000 Rosario, Argentina
| | - Melina Heise
- Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany
| | - Motahareh Moghtadaei
- Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany.,Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Dorothee Bornhorst
- Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany.,Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Jörg Männer
- Institute of Anatomy and Embryology, UMG, Göttingen University, D-37075 Göttingen, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany .,Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
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22
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Rödel CJ, Otten C, Donat S, Lourenço M, Fischer D, Kuropka B, Paolini A, Freund C, Abdelilah-Seyfried S. Blood Flow Suppresses Vascular Anomalies in a Zebrafish Model of Cerebral Cavernous Malformations. Circ Res 2019; 125:e43-e54. [DOI: 10.1161/circresaha.119.315076] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 02/03/2023]
Abstract
Rationale:
Pathological biomechanical signaling induces vascular anomalies including cerebral cavernous malformations (CCM), which are caused by a clonal loss of CCM1/KRIT1 (Krev interaction trapped protein 1), CCM2/MGC4607, or CCM3/PDCD10. Why patients typically experience lesions only in lowly perfused venous capillaries of the cerebrovasculature is completely unknown.
Objective:
In contrast, animal models with a complete loss of CCM proteins lack a functional heart and blood flow and exhibit vascular anomalies within major blood vessels as well. This finding raises the possibility that hemodynamics may play a role in the context of this vascular pathology.
Methods and Results:
Here, we used a genetic approach to restore cardiac function and blood flow in a zebrafish model of CCM1. We find that blood flow prevents cardiovascular anomalies including a hyperplastic expansion within a large Ccm1-deficient vascular bed, the lateral dorsal aorta.
Conclusions:
This study identifies blood flow as an important physiological factor that is protective in the cause of this devastating vascular pathology.
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Affiliation(s)
- Claudia Jasmin Rödel
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
| | - Cécile Otten
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
| | - Stefan Donat
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
- Institute of Molecular Biology, Hannover Medical School, Germany (S.D., S.A.-S.)
| | - Marta Lourenço
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
| | - Dorothea Fischer
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
| | - Benno Kuropka
- Institute of Biochemistry, Freie Universität Berlin, Germany (B.K., C.F.)
| | - Alessio Paolini
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
| | - Christian Freund
- Institute of Biochemistry, Freie Universität Berlin, Germany (B.K., C.F.)
| | - Salim Abdelilah-Seyfried
- From the Department for Animal Physiology, Institute of Biochemistry and Biology, Potsdam University, Germany (C.J.R., C.O., S.D., M.L., D.F., A.P., S.A.-S.)
- Institute of Molecular Biology, Hannover Medical School, Germany (S.D., S.A.-S.)
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23
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Otten C, Knox J, Boulday G, Eymery M, Haniszewski M, Neuenschwander M, Radetzki S, Vogt I, Hähn K, De Luca C, Cardoso C, Hamad S, Igual Gil C, Roy P, Albiges-Rizo C, Faurobert E, von Kries JP, Campillos M, Tournier-Lasserve E, Derry WB, Abdelilah-Seyfried S. Systematic pharmacological screens uncover novel pathways involved in cerebral cavernous malformations. EMBO Mol Med 2019; 10:emmm.201809155. [PMID: 30181117 PMCID: PMC6180302 DOI: 10.15252/emmm.201809155] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cerebral cavernous malformations (CCMs) are vascular lesions in the central nervous system causing strokes and seizures which currently can only be treated through neurosurgery. The disease arises through changes in the regulatory networks of endothelial cells that must be comprehensively understood to develop alternative, non-invasive pharmacological therapies. Here, we present the results of several unbiased small-molecule suppression screens in which we applied a total of 5,268 unique substances to CCM mutant worm, zebrafish, mouse, or human endothelial cells. We used a systems biology-based target prediction tool to integrate the results with the whole-transcriptome profile of zebrafish CCM2 mutants, revealing signaling pathways relevant to the disease and potential targets for small-molecule-based therapies. We found indirubin-3-monoxime to alleviate the lesion burden in murine preclinical models of CCM2 and CCM3 and suppress the loss-of-CCM phenotypes in human endothelial cells. Our multi-organism-based approach reveals new components of the CCM regulatory network and foreshadows novel small-molecule-based therapeutic applications for suppressing this devastating disease in patients.
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Affiliation(s)
- Cécile Otten
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Jessica Knox
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.,The Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Gwénola Boulday
- INSERM UMR-1161, Génétique et physiopathologie des maladies cérébro-vasculaires, Université Paris Diderot, Paris, France
| | - Mathias Eymery
- INSERM U1209, Grenoble, France.,Institute for Advanced Biosciences, Université Grenoble Alpes, Grenoble, France.,CNRS UMR 5309, Grenoble, France
| | - Marta Haniszewski
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.,Developmental and Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | | | - Silke Radetzki
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Ingo Vogt
- German Center for Diabetes Research, Neuherberg, Germany.,Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Kristina Hähn
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Coralie De Luca
- INSERM UMR-1161, Génétique et physiopathologie des maladies cérébro-vasculaires, Université Paris Diderot, Paris, France
| | - Cécile Cardoso
- INSERM UMR-1161, Génétique et physiopathologie des maladies cérébro-vasculaires, Université Paris Diderot, Paris, France
| | - Sabri Hamad
- German Center for Diabetes Research, Neuherberg, Germany.,Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Carla Igual Gil
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Peter Roy
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.,The Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Corinne Albiges-Rizo
- INSERM U1209, Grenoble, France.,Institute for Advanced Biosciences, Université Grenoble Alpes, Grenoble, France.,CNRS UMR 5309, Grenoble, France
| | - Eva Faurobert
- INSERM U1209, Grenoble, France.,Institute for Advanced Biosciences, Université Grenoble Alpes, Grenoble, France.,CNRS UMR 5309, Grenoble, France
| | - Jens P von Kries
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
| | - Mónica Campillos
- German Center for Diabetes Research, Neuherberg, Germany.,Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Elisabeth Tournier-Lasserve
- INSERM UMR-1161, Génétique et physiopathologie des maladies cérébro-vasculaires, Université Paris Diderot, Paris, France.,AP-HP, Groupe hospitalier Saint-Louis, Lariboisière, Fernand-Widal, Service de génétique moléculaire neuro-vasculaire, Paris, France
| | - W Brent Derry
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.,Developmental and Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany .,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
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24
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Chapman EM, Lant B, Ohashi Y, Yu B, Schertzberg M, Go C, Dogra D, Koskimäki J, Girard R, Li Y, Fraser AG, Awad IA, Abdelilah-Seyfried S, Gingras AC, Derry WB. A conserved CCM complex promotes apoptosis non-autonomously by regulating zinc homeostasis. Nat Commun 2019; 10:1791. [PMID: 30996251 PMCID: PMC6470173 DOI: 10.1038/s41467-019-09829-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 07/05/2018] [Accepted: 04/02/2019] [Indexed: 12/13/2022] Open
Abstract
Apoptotic death of cells damaged by genotoxic stress requires regulatory input from surrounding tissues. The C. elegans scaffold protein KRI-1, ortholog of mammalian KRIT1/CCM1, permits DNA damage-induced apoptosis of cells in the germline by an unknown cell non-autonomous mechanism. We reveal that KRI-1 exists in a complex with CCM-2 in the intestine to negatively regulate the ERK-5/MAPK pathway. This allows the KLF-3 transcription factor to facilitate expression of the SLC39 zinc transporter gene zipt-2.3, which functions to sequester zinc in the intestine. Ablation of KRI-1 results in reduced zinc sequestration in the intestine, inhibition of IR-induced MPK-1/ERK1 activation, and apoptosis in the germline. Zinc localization is also perturbed in the vasculature of krit1-/- zebrafish, and SLC39 zinc transporters are mis-expressed in Cerebral Cavernous Malformations (CCM) patient tissues. This study provides new insights into the regulation of apoptosis by cross-tissue communication, and suggests a link between zinc localization and CCM disease.
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Affiliation(s)
- Eric M Chapman
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, ON, Canada
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, ON, Canada
| | - Benjamin Lant
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, ON, Canada
| | - Yota Ohashi
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, ON, Canada
| | - Bin Yu
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, ON, Canada
| | - Michael Schertzberg
- The Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, M5S 3E1, ON, Canada
| | - Christopher Go
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, ON, Canada
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Toronto, M5G 1X5, ON, Canada
| | - Deepika Dogra
- Institute for Biochemistry and Biology, Potsdam University, Potsdam, 14476, Germany
| | - Janne Koskimäki
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine, Chicago, IL, 60637, USA
| | - Romuald Girard
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine, Chicago, IL, 60637, USA
| | - Yan Li
- University of Chicago Center for Research Informatics, The University of Chicago, Chicago, IL, 60637, USA
| | - Andrew G Fraser
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, ON, Canada
- The Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, M5S 3E1, ON, Canada
| | - Issam A Awad
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine, Chicago, IL, 60637, USA
| | | | - Anne-Claude Gingras
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, ON, Canada
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Toronto, M5G 1X5, ON, Canada
| | - W Brent Derry
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, ON, Canada.
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, ON, Canada.
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Paolini A, Abdelilah-Seyfried S. The mechanobiology of zebrafish cardiac valve leaflet formation. Curr Opin Cell Biol 2018; 55:52-58. [DOI: 10.1016/j.ceb.2018.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 05/10/2018] [Indexed: 12/31/2022]
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26
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Olmer R, Engels L, Usman A, Menke S, Malik MNH, Pessler F, Göhring G, Bornhorst D, Bolten S, Abdelilah-Seyfried S, Scheper T, Kempf H, Zweigerdt R, Martin U. Differentiation of Human Pluripotent Stem Cells into Functional Endothelial Cells in Scalable Suspension Culture. Stem Cell Reports 2018; 10:1657-1672. [PMID: 29681541 PMCID: PMC5995343 DOI: 10.1016/j.stemcr.2018.03.017] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 03/20/2018] [Accepted: 03/20/2018] [Indexed: 12/11/2022] Open
Abstract
Endothelial cells (ECs) are involved in a variety of cellular responses. As multifunctional components of vascular structures, endothelial (progenitor) cells have been utilized in cellular therapies and are required as an important cellular component of engineered tissue constructs and in vitro disease models. Although primary ECs from different sources are readily isolated and expanded, cell quantity and quality in terms of functionality and karyotype stability is limited. ECs derived from human induced pluripotent stem cells (hiPSCs) represent an alternative and potentially superior cell source, but traditional culture approaches and 2D differentiation protocols hardly allow for production of large cell numbers. Aiming at the production of ECs, we have developed a robust approach for efficient endothelial differentiation of hiPSCs in scalable suspension culture. The established protocol results in relevant numbers of ECs for regenerative approaches and industrial applications that show in vitro proliferation capacity and a high degree of chromosomal stability. Efficient generation of hiPSC-derived ECs in scalable suspension culture High degree of chromosomal stability of hiPSC-ECs after in vitro expansion Generation of relevant numbers of hiPSC-ECs for regenerative approaches
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Affiliation(s)
- Ruth Olmer
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Lena Engels
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Abdulai Usman
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Sandra Menke
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Muhammad Nasir Hayat Malik
- TWINCORE Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany; Helmholtz-Centre for Infection Research Braunschweig, 38124 Braunschweig, Germany; Centre for Individualised Infection Medicine, 30625 Hannover, Germany
| | - Frank Pessler
- TWINCORE Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany; Helmholtz-Centre for Infection Research Braunschweig, 38124 Braunschweig, Germany; Centre for Individualised Infection Medicine, 30625 Hannover, Germany
| | - Gudrun Göhring
- Institute of Cell and Molecular Pathology, Hannover Medical School, 30625 Hannover, Germany
| | - Dorothee Bornhorst
- REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute of Molecular Biology, Hannover Medical School, 30625 Hannover, Germany
| | - Svenja Bolten
- REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Molecular Biology, Hannover Medical School, 30625 Hannover, Germany; Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Thomas Scheper
- REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute for Technical Chemistry, Leibniz University Hannover, 30167 Hannover, Germany
| | - Henning Kempf
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Robert Zweigerdt
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Ulrich Martin
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany.
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Donat S, Lourenço M, Paolini A, Otten C, Renz M, Abdelilah-Seyfried S. Heg1 and Ccm1/2 proteins control endocardial mechanosensitivity during zebrafish valvulogenesis. eLife 2018; 7:28939. [PMID: 29364115 PMCID: PMC5794256 DOI: 10.7554/elife.28939] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 01/24/2018] [Indexed: 12/18/2022] Open
Abstract
Endothelial cells respond to different levels of fluid shear stress through adaptations of their mechanosensitivity. Currently, we lack a good understanding of how this contributes to sculpting of the cardiovascular system. Cerebral cavernous malformation (CCM) is an inherited vascular disease that occurs when a second somatic mutation causes a loss of CCM1/KRIT1, CCM2, or CCM3 proteins. Here, we demonstrate that zebrafish Krit1 regulates the formation of cardiac valves. Expression of heg1, which encodes a binding partner of Krit1, is positively regulated by blood-flow. In turn, Heg1 stabilizes levels of Krit1 protein, and both Heg1 and Krit1 dampen expression levels of klf2a, a major mechanosensitive gene. Conversely, loss of Krit1 results in increased expression of klf2a and notch1b throughout the endocardium and prevents cardiac valve leaflet formation. Hence, the correct balance of blood-flow-dependent induction and Krit1 protein-mediated repression of klf2a and notch1b ultimately shapes cardiac valve leaflet morphology.
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Affiliation(s)
- Stefan Donat
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
| | - Marta Lourenço
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Alessio Paolini
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Cécile Otten
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Marc Renz
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
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28
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Lisowska J, Rödel CJ, Manet S, Miroshnikova YA, Boyault C, Planus E, De Mets R, Lee HH, Destaing O, Mertani H, Boulday G, Tournier-Lasserve E, Balland M, Abdelilah-Seyfried S, Albiges-Rizo C, Faurobert E. Cerebral Cavernous Malformation 1/2 complex controls ROCK1 and ROCK2 complementary functions for endothelial integrity. J Cell Sci 2018; 131:jcs.216093. [DOI: 10.1242/jcs.216093] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 07/03/2018] [Indexed: 12/30/2022] Open
Abstract
Endothelial integrity relies on a mechanical crosstalk between intercellular and cell-matrix interactions. This cross-talk is compromised in hemorrhagic vascular lesions of patients carrying loss-of-function mutations in CCM genes. RhoA/ROCK-dependent cytoskeletal remodeling is central to the disease as it causes unbalanced cell adhesion towards increased cell-extracellular matrix adhesions and destabilized cell-cell junctions. Our study reveals that CCM proteins directly orchestrate ROCK1 and ROCK2 complementary roles on the mechanics of the endothelium. CCM proteins act as a scaffold promoting ROCK2 interactions with VE-cadherin and limiting ROCK1 kinase activity. Loss of CCM1 produces excessive ROCK1-dependent actin stress fibers and destabilizes intercellular junctions. Silencing of ROCK1 but not ROCK2 restores the adhesive and mechanical homeostasis of CCM1/2-depleted endothelial monolayers and rescues cardiovascular defects of ccm1 mutant zebrafish embryos. Conversely, knocking down of Rock2 but not Rock1 in WT zebrafish embryos generates defects reminiscent of the ccm1 mutant phenotypes. Our study uncovers the role of the CCM complex in controlling ROCK1 and ROCK2 to preserve endothelial integrity and drive heart morphogenesis. Moreover, it identifies solely the ROCK1 isoform as therapeutic target for the CCM disease.
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Affiliation(s)
- Justyna Lisowska
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Claudia Jasmin Rödel
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
| | - Sandra Manet
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Yekaterina A. Miroshnikova
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Cyril Boyault
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Emmanuelle Planus
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Richard De Mets
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5588 LIPhy, F-38041 Grenoble, France
| | - Hsiao-Hui Lee
- Department of Life Sciences & Institute of Genome Sciences, National Yang-Ming University, Taipei City 112, Taiwan
| | - Olivier Destaing
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Hichem Mertani
- INSERM UMR 1052, CNRS 5286 CRCL Centre Léon Bérard F-69373 Lyon Cedex 08, France
| | - Gwénola Boulday
- INSERM, UMR-S1161, Paris, F-75010, France
- Univ Paris Diderot, Sorbonne Paris Cité, UMR-S1161, Paris, F-75010, France
- AP-HP, Groupe hospitalier Saint-Louis Lariboisiere-Fernand-Widal, Paris, F-75010, France
| | - Elisabeth Tournier-Lasserve
- INSERM, UMR-S1161, Paris, F-75010, France
- Univ Paris Diderot, Sorbonne Paris Cité, UMR-S1161, Paris, F-75010, France
- AP-HP, Groupe hospitalier Saint-Louis Lariboisiere-Fernand-Widal, Paris, F-75010, France
| | - Martial Balland
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5588 LIPhy, F-38041 Grenoble, France
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, D-14476 Potsdam, Germany
- Institute of Molecular Biology, Hannover Medical School, D-30625 Hannover, Germany
| | - Corinne Albiges-Rizo
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
| | - Eva Faurobert
- INSERM U1209, Institute for Advanced Biosciences, F-38700 La Tronche, France
- Université Grenoble Alpes , F-38042 Grenoble, France
- CNRS UMR 5309, Institute for Advanced Biosciences F-38700 La Tronche, France
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29
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Haack T, Abdelilah-Seyfried S. The force within: endocardial development, mechanotransduction and signalling during cardiac morphogenesis. Development 2016; 143:373-86. [PMID: 26839341 DOI: 10.1242/dev.131425] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Endocardial cells are cardiac endothelial cells that line the interior of the heart tube. Historically, their contribution to cardiac development has mainly been considered from a morphological perspective. However, recent studies have begun to define novel instructive roles of the endocardium, as a sensor and signal transducer of biophysical forces induced by blood flow, and as an angiocrine signalling centre that is involved in myocardial cellular morphogenesis, regeneration and reprogramming. In this Review, we discuss how the endocardium develops, how endocardial-myocardial interactions influence the developing embryonic heart, and how the dysregulation of blood flow-responsive endocardial signalling can result in pathophysiological changes.
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Affiliation(s)
- Timm Haack
- Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, Hannover D-30625, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, Hannover D-30625, Germany Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, Potsdam D-14476, Germany
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Abstract
The vascular system is critical for developmental growth, tissue homeostasis and repair but also for tumor development. Bone morphogenetic protein (BMP) signaling has recently emerged as a fundamental pathway of the endothelium by regulating cardiovascular and lymphatic development and by being causative for several vascular dysfunctions. Two vascular disorders have been directly linked to impaired BMP signaling: pulmonary arterial hypertension and hereditary hemorrhagic telangiectasia. Endothelial BMP signaling critically depends on the cellular context, which includes among others vascular heterogeneity, exposure to flow, and the intertwining with other signaling cascades (Notch, WNT, Hippo and hypoxia). The purpose of this review is to highlight the most recent findings illustrating the clear need for reconsidering the role of BMPs in vascular biology.
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Affiliation(s)
- Amaya García de Vinuesa
- Department of Molecular Cell Biology, Cancer Genomics Centre Netherlands, Leiden University Medical Center, Leiden, The Netherlands
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany; Institute of Molecular Biology, Hannover Medical School, Carl-Neuberg Straße 1, D-30625 Hannover, Germany
| | - Petra Knaus
- Institute for Chemistry and Biochemistry, Freie Universitaet Berlin, Berlin, Germany
| | - An Zwijsen
- VIB Center for the Biology of Disease, Leuven, Belgium; KU Leuven, Department of Human Genetics, Leuven, Belgium
| | - Sabine Bailly
- Institut National de la Santé et de la Recherche Médicale (INSERM, U1036), Grenoble F-38000, France; Commissariat à l'Énergie Atomique et aux Energies Alternatives, Institut de Recherches en Technologies et Sciences pour le Vivant, Laboratoire Biologie du Cancer et de l'Infection, Grenoble F-38000, France; Université Grenoble-Alpes, Grenoble F-38000, France.
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31
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Cui H, Schlesinger J, Schoenhals S, Tönjes M, Dunkel I, Meierhofer D, Cano E, Schulz K, Berger MF, Haack T, Abdelilah-Seyfried S, Bulyk ML, Sauer S, Sperling SR. Phosphorylation of the chromatin remodeling factor DPF3a induces cardiac hypertrophy through releasing HEY repressors from DNA. Nucleic Acids Res 2015; 44:2538-53. [PMID: 26582913 PMCID: PMC4824069 DOI: 10.1093/nar/gkv1244] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 11/01/2015] [Indexed: 01/09/2023] Open
Abstract
DPF3 (BAF45c) is a member of the BAF chromatin remodeling complex. Two isoforms have been described, namely DPF3a and DPF3b. The latter binds to acetylated and methylated lysine residues of histones. Here, we elaborate on the role of DPF3a and describe a novel pathway of cardiac gene transcription leading to pathological cardiac hypertrophy. Upon hypertrophic stimuli, casein kinase 2 phosphorylates DPF3a at serine 348. This initiates the interaction of DPF3a with the transcriptional repressors HEY, followed by the release of HEY from the DNA. Moreover, BRG1 is bound by DPF3a, and is thus recruited to HEY genomic targets upon interaction of the two components. Consequently, the transcription of downstream targets such as NPPA and GATA4 is initiated and pathological cardiac hypertrophy is established. In human, DPF3a is significantly up-regulated in hypertrophic hearts of patients with hypertrophic cardiomyopathy or aortic stenosis. Taken together, we show that activation of DPF3a upon hypertrophic stimuli switches cardiac fetal gene expression from being silenced by HEY to being activated by BRG1. Thus, we present a novel pathway for pathological cardiac hypertrophy, whose inhibition is a long-term therapeutic goal for the treatment of the course of heart failure.
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Affiliation(s)
- Huanhuan Cui
- Department of Cardiovascular Genetics, Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany Group of Cardiovascular Genetics, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany DZHK (German Center for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Jenny Schlesinger
- Department of Cardiovascular Genetics, Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany Group of Cardiovascular Genetics, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - Sophia Schoenhals
- Department of Cardiovascular Genetics, Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany
| | - Martje Tönjes
- Group of Cardiovascular Genetics, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - Ilona Dunkel
- Group of Cardiovascular Genetics, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - David Meierhofer
- Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany
| | - Elena Cano
- Department of Cardiovascular Genetics, Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany
| | - Kerstin Schulz
- Department of Cardiovascular Genetics, Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany
| | - Michael F Berger
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA Committee on Higher Degrees in Biophysics, Harvard University, Cambridge, MA 02138, USA
| | - Timm Haack
- Hannover Medical School, Institute of Molecular Biology, Carl-Neuberg Str. 1, D-30625 Hannover, Germany
| | - Salim Abdelilah-Seyfried
- Hannover Medical School, Institute of Molecular Biology, Carl-Neuberg Str. 1, D-30625 Hannover, Germany Potsdam University, Institute of Biochemistry and Biology, Department of Animal Physiology, Karl-Liebknecht Str. 24-25, 14476 Potsdam-Golm, Germany
| | - Martha L Bulyk
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA Committee on Higher Degrees in Biophysics, Harvard University, Cambridge, MA 02138, USA Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Sascha Sauer
- Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany CU Systems Medicine, University of Würzburg, 97080 Würzburg, Germany
| | - Silke R Sperling
- Department of Cardiovascular Genetics, Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany Group of Cardiovascular Genetics, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany DZHK (German Center for Cardiovascular Research), partner site Berlin, Berlin, Germany
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32
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Dietrich AC, Lombardo V, Veerkamp J, Priller F, Abdelilah-Seyfried S. Blood Flow and Bmp Signaling Control Endocardial Chamber Morphogenesis. Dev Cell 2015. [DOI: 10.1016/j.devcel.2015.01.020] [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: 10/24/2022]
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33
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Abstract
The zebrafish embryonic heart is composed of only a few hundred cells, representing only a small fraction of the entire embryo. Therefore, to prevent the cardiac transcriptome from being masked by the global embryonic transcriptome, it is necessary to collect sufficient numbers of hearts for further analyses. Furthermore, as zebrafish cardiac development proceeds rapidly, heart collection and RNA extraction methods need to be quick in order to ensure homogeneity of the samples. Here, we present a rapid manual dissection protocol for collecting functional/beating hearts from zebrafish embryos. This is an essential prerequisite for subsequent cardiac-specific RNA extraction to determine cardiac-specific gene expression levels by transcriptome analyses, such as quantitative real-time polymerase chain reaction (RT-qPCR). The method is based on differential adhesive properties of the zebrafish embryonic heart compared with other tissues; this allows for the rapid physical separation of cardiac from extracardiac tissue by a combination of fluidic shear force disruption, stepwise filtration and manual collection of transgenic fluorescently labeled hearts.
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Affiliation(s)
- Verónica A Lombardo
- Max Delbrück Center for Molecular Medicine; Institute of Biochemistry and Biology, University of Potsdam; Institute of Molecular Biology, Medizinische Hochschule Hannover
| | - Cécile Otten
- Max Delbrück Center for Molecular Medicine; Institute of Biochemistry and Biology, University of Potsdam
| | - Salim Abdelilah-Seyfried
- Max Delbrück Center for Molecular Medicine; Institute of Biochemistry and Biology, University of Potsdam; Institute of Molecular Biology, Medizinische Hochschule Hannover;
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Renz M, Otten C, Faurobert E, Rudolph F, Zhu Y, Boulday G, Duchene J, Mickoleit M, Dietrich AC, Ramspacher C, Steed E, Manet-Dupé S, Benz A, Hassel D, Vermot J, Huisken J, Tournier-Lasserve E, Felbor U, Sure U, Albiges-Rizo C, Abdelilah-Seyfried S. Regulation of β1 Integrin-Klf2-Mediated Angiogenesis by CCM Proteins. Dev Cell 2015; 32:181-90. [DOI: 10.1016/j.devcel.2014.12.016] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 11/03/2014] [Accepted: 12/19/2014] [Indexed: 12/01/2022]
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Dietrich AC, Lombardo VA, Veerkamp J, Priller F, Abdelilah-Seyfried S. Blood flow and Bmp signaling control endocardial chamber morphogenesis. Dev Cell 2014; 30:367-77. [PMID: 25158852 DOI: 10.1016/j.devcel.2014.06.020] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 05/02/2014] [Accepted: 06/24/2014] [Indexed: 11/18/2022]
Abstract
During heart development, the onset of heartbeat and blood flow coincides with a ballooning of the cardiac chambers. Here, we have used the zebrafish as a vertebrate model to characterize chamber ballooning morphogenesis of the endocardium, a specialized population of endothelial cells that line the interior of the heart. By combining functional manipulations, fate mapping studies, and high-resolution imaging, we show that endocardial growth occurs without an influx of external cells. Instead, endocardial cell proliferation is regulated, both by blood flow and by Bmp signaling, in a manner independent of vascular endothelial growth factor (VEGF) signaling. Similar to myocardial cells, endocardial cells obtain distinct chamber-specific and inner- versus outer-curvature-specific surface area sizes. We find that the hemodynamic-sensitive transcription factor Klf2a is involved in regulating endocardial cell morphology. These findings establish the endocardium as the flow-sensitive tissue in the heart with a key role in adapting chamber growth in response to the mechanical stimulus of blood flow.
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Affiliation(s)
- Ann-Christin Dietrich
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany; Institute for Molecular Biology, Medizinische Hochschule Hannover, Carl-Neuberg Straße 1, 30625 Hannover, Germany; Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13125 Berlin, Germany
| | - Verónica A Lombardo
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany; Institute for Molecular Biology, Medizinische Hochschule Hannover, Carl-Neuberg Straße 1, 30625 Hannover, Germany; Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13125 Berlin, Germany
| | | | | | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany; Institute for Molecular Biology, Medizinische Hochschule Hannover, Carl-Neuberg Straße 1, 30625 Hannover, Germany; Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13125 Berlin, Germany.
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36
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Bennet M, Akiva A, Faivre D, Malkinson G, Yaniv K, Abdelilah-Seyfried S, Fratzl P, Masic A. Simultaneous Raman microspectroscopy and fluorescence imaging of bone mineralization in living zebrafish larvae. Biophys J 2014; 106:L17-9. [PMID: 24560001 PMCID: PMC3944822 DOI: 10.1016/j.bpj.2014.01.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/19/2013] [Accepted: 01/03/2014] [Indexed: 11/26/2022] Open
Abstract
Confocal Raman microspectroscopy and fluorescence imaging are two well-established methods providing functional insight into the extracellular matrix and into living cells and tissues, respectively, down to single molecule detection. In living tissues, however, cells and extracellular matrix coexist and interact. To acquire information on this cell-matrix interaction, we developed a technique for colocalized, correlative multispectral tissue analysis by implementing high-sensitivity, wide-field fluorescence imaging on a confocal Raman microscope. As a proof of principle, we study early stages of bone formation in the zebrafish (Danio rerio) larvae because the zebrafish has emerged as a model organism to study vertebrate development. The newly formed bones were stained using a calcium fluorescent marker and the maturation process was imaged and chemically characterized in vivo. Results obtained from early stages of mineral deposition in the zebrafish fin bone unequivocally show the presence of hydrogen phosphate containing mineral phases in addition to the carbonated apatite mineral. The approach developed here opens significant opportunities in molecular imaging of metabolic activities, intracellular sensing, and trafficking as well as in vivo exploration of cell-tissue interfaces under (patho-)physiological conditions.
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Affiliation(s)
- M Bennet
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany
| | - A Akiva
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - D Faivre
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany
| | - G Malkinson
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - K Yaniv
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - S Abdelilah-Seyfried
- Institute for Molecular Biology, Medizinische Hochschule Hannover, Hannover, Germany
| | - P Fratzl
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany
| | - A Masic
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany.
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Wieffer M, Cibrián Uhalte E, Posor Y, Otten C, Branz K, Schütz I, Mössinger J, Schu P, Abdelilah-Seyfried S, Krauß M, Haucke V. PI4K2β/AP-1-Based TGN-Endosomal Sorting Regulates Wnt Signaling. Curr Biol 2013; 23:2185-90. [DOI: 10.1016/j.cub.2013.09.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 08/08/2013] [Accepted: 09/06/2013] [Indexed: 10/26/2022]
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Tay HG, Schulze SK, Compagnon J, Foley FC, Heisenberg CP, Yost HJ, Abdelilah-Seyfried S, Amack JD. Lethal giant larvae 2 regulates development of the ciliated organ Kupffer's vesicle. Development 2013; 140:1550-9. [PMID: 23482490 DOI: 10.1242/dev.087130] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Motile cilia perform crucial functions during embryonic development and throughout adult life. Development of organs containing motile cilia involves regulation of cilia formation (ciliogenesis) and formation of a luminal space (lumenogenesis) in which cilia generate fluid flows. Control of ciliogenesis and lumenogenesis is not yet fully understood, and it remains unclear whether these processes are coupled. In the zebrafish embryo, lethal giant larvae 2 (lgl2) is expressed prominently in ciliated organs. Lgl proteins are involved in establishing cell polarity and have been implicated in vesicle trafficking. Here, we identified a role for Lgl2 in development of ciliated epithelia in Kupffer's vesicle, which directs left-right asymmetry of the embryo; the otic vesicles, which give rise to the inner ear; and the pronephric ducts of the kidney. Using Kupffer's vesicle as a model ciliated organ, we found that depletion of Lgl2 disrupted lumen formation and reduced cilia number and length. Immunofluorescence and time-lapse imaging of Kupffer's vesicle morphogenesis in Lgl2-deficient embryos suggested cell adhesion defects and revealed loss of the adherens junction component E-cadherin at lateral membranes. Genetic interaction experiments indicate that Lgl2 interacts with Rab11a to regulate E-cadherin and mediate lumen formation that is uncoupled from cilia formation. These results uncover new roles and interactions for Lgl2 that are crucial for both lumenogenesis and ciliogenesis and indicate that these processes are genetically separable in zebrafish.
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Affiliation(s)
- Hwee Goon Tay
- Department of Cell and Developmental Biology, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
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Veerkamp J, Rudolph F, Cseresnyes Z, Priller F, Otten C, Renz M, Schaefer L, Abdelilah-Seyfried S. Unilateral dampening of Bmp activity by nodal generates cardiac left-right asymmetry. Dev Cell 2013; 24:660-7. [PMID: 23499359 DOI: 10.1016/j.devcel.2013.01.026] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 11/19/2012] [Accepted: 01/30/2013] [Indexed: 12/29/2022]
Abstract
Signaling by Nodal and Bmp is essential for cardiac laterality. How activities of these pathways translate into left-right asymmetric organ morphogenesis is largely unknown. We show that, in zebrafish, Nodal locally reduces Bmp activity on the left side of the cardiac field. This effect is mediated by the extracellular matrix enzyme Hyaluronan synthase 2, expression of which is induced by Nodal. Unilateral reduction of Bmp signaling results in lower expression of nonmuscle myosin II and higher cell motility on the left, driving asymmetric displacement of the entire cardiac field. In silico modeling shows that left-right differences in cell motility are sufficient to induce a robust, directional migration of cardiac tissue. Thus, the mechanism underlying the formation of cardiac left-right asymmetry involves Nodal modulating an antimotogenic Bmp activity.
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Affiliation(s)
- Justus Veerkamp
- Cardiovascular Department, Max Delbrück Center for Molecular Medicine, Robert-Rössle-Straße 10, 13125 Berlin, Germany
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40
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Abstract
Various experimental approaches have been used in mouse to induce muscle injury with the aim to study muscle regeneration, including myotoxin injections (bupivacaine, cardiotoxin or notexin), muscle transplantations (denervation-devascularization induced regeneration), intensive exercise, but also murine muscular dystrophy models such as the mdx mouse (for a review of these approaches see). In zebrafish, genetic approaches include mutants that exhibit muscular dystrophy phenotypes (such as runzel or sapje) and antisense oligonucleotide morpholinos that block the expression of dystrophy-associated genes. Besides, chemical approaches are also possible, e.g. with Galanthamine, a chemical compound inhibiting acetylcholinesterase, thereby resulting in hypercontraction, which eventually leads to muscular dystrophy. However, genetic and pharmacological approaches generally affect all muscles within an individual, whereas the extent of physically inflicted injuries are more easily controlled spatially and temporally. Localized physical injury allows the assessment of contralateral muscle as an internal control. Indeed, we recently used laser-mediated cell ablation to study skeletal muscle regeneration in the zebrafish embryo, while another group recently reported the use of a two-photon laser (822 nm) to damage very locally the plasma membrane of individual embryonic zebrafish muscle cells. Here, we report a method for using the micropoint laser (Andor Technology) for skeletal muscle cell injury in the zebrafish embryo. The micropoint laser is a high energy laser which is suitable for targeted cell ablation at a wavelength of 435 nm. The laser is connected to a microscope (in our setup, an optical microscope from Zeiss) in such a way that the microscope can be used at the same time for focusing the laser light onto the sample and for visualizing the effects of the wounding (brightfield or fluorescence). The parameters for controlling laser pulses include wavelength, intensity, and number of pulses. Due to its transparency and external embryonic development, the zebrafish embryo is highly amenable for both laser-induced injury and for studying the subsequent recovery. Between 1 and 2 days post-fertilization, somitic skeletal muscle cells progressively undergo maturation from anterior to posterior due to the progression of somitogenesis from the trunk to the tail. At these stages, embryos spontaneously twitch and initiate swimming. The zebrafish has recently been recognized as an important vertebrate model organism for the study of tissue regeneration, as many types of tissues (cardiac, neuronal, vascular etc.) can be regenerated after injury in the adult zebrafish.
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Abstract
Zebrafish brain ventricle morphogenesis involves an initial circulation-independent opening followed by a blood flow- and circulation-dependent expansion process. Zebrafish claudin-5a is required for the establishment of a neuroepithelial-ventricular barrier, which maintains the hydrostatic pressure within the ventricular cavity, thereby contributing to brain ventricle opening and expansion. In mammalia, several claudin family members, including claudin-3 and claudin-5, are expressed within microvessel endothelial cells of the blood-brain barrier. Whether zebrafish brain ventricle morphogenesis provides a model for studying these claudins during early embryonic development was unknown. This review focuses on the expression and function of these zebrafish claudins during brain ventricle morphogenesis.
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Affiliation(s)
- Jingjing Zhang
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
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42
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Abstract
Embryogenesis is a dynamic process that is best studied by using techniques that allow the documentation of developmental changes in vivo. The use of genetically-encoded fluorescent proteins has proven a valuable strategy for elucidating dynamic morphogenetic processes as they occur in the intact organism. During the past decade, the development of photoactivatable and photoconvertible fluorescent proteins has opened the possibility to investigate the fate of discrete subpopulations of tagged proteins. Unlike photoactivatable proteins, photoconvertible fluorescent proteins (PCFPs) are readily tracked and imaged in their native emission state prior to photoconversion, making it easier to identify and select regions by optical inspection. PCFPs, such as Kaede, KikGR, Dendra and EosFP, can be shifted from green to red upon exposure to UV or blue light due to a His-Tyr-Gly tripeptide sequence which forms a green chromophore that can be photoconverted to a red one by a light-catalyzed β-elimination and subsequent extension of a π-conjugated system. PCFPs and their monomeric variants are useful tools for tracking cells and studying protein dynamics, respectively. During recent years, PCFPs have been expressed in different animal model, such as zebrafish, chicken and mouse for cell fate tracking. Here we report a protocol for cell-specific photoconversion of PCFPs in the living zebrafish embryo and further tracking of photoconverted proteins at later developmental stages. This methodology allows studying, in a tissue-specific manner, cell biological events underlying morphogenesis in the zebrafish animal model.
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Cibrián Uhalte E, Kirchner M, Hellwig N, Allen JJ, Donat S, Shokat KM, Selbach M, Abdelilah-Seyfried S. In vivo conditions to identify Prkci phosphorylation targets using the analog-sensitive kinase method in zebrafish. PLoS One 2012; 7:e40000. [PMID: 22768194 PMCID: PMC3386912 DOI: 10.1371/journal.pone.0040000] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 06/04/2012] [Indexed: 12/16/2022] Open
Abstract
Protein kinase C iota is required for various cell biological processes including epithelial tissue polarity and organ morphogenesis. To gain mechanistic insight into different roles of this kinase, it is essential to identify specific substrate proteins in their cellular context. The analog-sensitive kinase method provides a powerful tool for the identification of kinase substrates under in vivo conditions. However, it has remained a major challenge to establish screens based on this method in multicellular model organisms. Here, we report the methodology for in vivo conditions using the analog-sensitive kinase method in a genetically-tractable vertebrate model organism, the zebrafish. With this approach, kinase substrates can uniquely be labeled in the developing zebrafish embryo using bulky ATPγS analogs which results in the thiophosphorylation of substrates. The labeling of kinase substrates with a thiophosphoester epitope differs from phosphoesters that are generated by all other kinases and allows for an enrichment of thiophosphopeptides by immunoaffinity purification. This study provides the foundation for using the analog-sensitive kinase method in the context of complex vertebrate development, physiology, or disease.
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Affiliation(s)
| | | | - Nicole Hellwig
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Jasmina J. Allen
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California, United States of America
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California, United States of America
| | - Stefan Donat
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Kevan M. Shokat
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California, United States of America
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California, United States of America
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Otten C, van der Ven PF, Lewrenz I, Paul S, Steinhagen A, Busch-Nentwich E, Eichhorst J, Wiesner B, Stemple D, Strähle U, Fürst DO, Abdelilah-Seyfried S. Xirp proteins mark injured skeletal muscle in zebrafish. PLoS One 2012; 7:e31041. [PMID: 22355335 PMCID: PMC3280289 DOI: 10.1371/journal.pone.0031041] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [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: 07/18/2011] [Accepted: 12/30/2011] [Indexed: 11/18/2022] Open
Abstract
Myocellular regeneration in vertebrates involves the proliferation of activated progenitor or dedifferentiated myogenic cells that have the potential to replenish lost tissue. In comparison little is known about cellular repair mechanisms within myocellular tissue in response to small injuries caused by biomechanical or cellular stress. Using a microarray analysis for genes upregulated upon myocellular injury, we identified zebrafish Xin-actin-binding repeat-containing protein1 (Xirp1) as a marker for wounded skeletal muscle cells. By combining laser-induced micro-injury with proliferation analyses, we found that Xirp1 and Xirp2a localize to nascent myofibrils within wounded skeletal muscle cells and that the repair of injuries does not involve cell proliferation or Pax7(+) cells. Through the use of Xirp1 and Xirp2a as markers, myocellular injury can now be detected, even though functional studies indicate that these proteins are not essential in this process. Previous work in chicken has implicated Xirps in cardiac looping morphogenesis. However, we found that zebrafish cardiac morphogenesis is normal in the absence of Xirp expression, and animals deficient for cardiac Xirp expression are adult viable. Although the functional involvement of Xirps in developmental and repair processes currently remains enigmatic, our findings demonstrate that skeletal muscle harbours a rapid, cell-proliferation-independent response to injury which has now become accessible to detailed molecular and cellular characterizations.
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Affiliation(s)
- Cécile Otten
- Max Delbrück Center (MDC) for Molecular Medicine, Berlin, Germany
| | - Peter F. van der Ven
- Department of Molecular Cell Biology, Institute of Cell Biology, University of Bonn, Bonn, Germany
| | - Ilka Lewrenz
- Department of Molecular Cell Biology, Institute of Cell Biology, University of Bonn, Bonn, Germany
| | - Sandeep Paul
- Institute for Toxicology and Genetics, Karlsruhe, Germany
- University of Southern California Keck School of Medicine, Los Angeles, California, United States of America
| | - Almut Steinhagen
- Department of Molecular Cell Biology, Institute of Cell Biology, University of Bonn, Bonn, Germany
| | - Elisabeth Busch-Nentwich
- Vertebrate Development and Genetics, The Wellcome Trust Sanger Institute, Cambridge, United Kingdom
| | - Jenny Eichhorst
- Leibniz Institute for Molecular Pharmacology, Berlin, Germany
| | | | - Derek Stemple
- Vertebrate Development and Genetics, The Wellcome Trust Sanger Institute, Cambridge, United Kingdom
| | - Uwe Strähle
- Institute for Toxicology and Genetics, Karlsruhe, Germany
| | - Dieter O. Fürst
- Department of Molecular Cell Biology, Institute of Cell Biology, University of Bonn, Bonn, Germany
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de Pater E, Ciampricotti M, Priller F, Veerkamp J, Strate I, Smith K, Lagendijk AK, Schilling TF, Herzog W, Abdelilah-Seyfried S, Hammerschmidt M, Bakkers J. Bmp signaling exerts opposite effects on cardiac differentiation. Circ Res 2012; 110:578-87. [PMID: 22247485 DOI: 10.1161/circresaha.111.261172] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [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: 01/31/2023]
Abstract
RATIONALE The importance for Bmp signaling during embryonic stem cell differentiation into myocardial cells has been recognized. The question when and where Bmp signaling in vivo regulates myocardial differentiation has remained largely unanswered. OBJECTIVE To identify when and where Bmp signaling regulates cardiogenic differentiation. METHODS AND RESULTS Here we have observed that in zebrafish embryos, Bmp signaling is active in cardiac progenitor cells prior to their differentiation into cardiomyocytes. Bmp signaling is continuously required during somitogenesis within the anterior lateral plate mesoderm to induce myocardial differentiation. Surprisingly, Bmp signaling is actively repressed in differentiating myocardial cells. We identified the inhibitory Smad6a, which is expressed in the cardiac tissue, to be required to inhibit Bmp signaling and thereby promote expansion of the ventricular myocardium. CONCLUSION Bmp signaling exerts opposing effects on myocardial differentiation in the embryo by promoting as well as inhibiting cardiac growth.
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Affiliation(s)
- Emma de Pater
- Cardiac development and genetics group, Hubrecht Institute for Developmental Biology and Stem Cell Research, Uppsalalaan 8, Utrecht, The Netherlands.
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Klein C, Mikutta J, Krueger J, Scholz K, Brinkmann J, Liu D, Veerkamp J, Siegel D, Abdelilah-Seyfried S, le Noble F. Neuron navigator 3a regulates liver organogenesis during zebrafish embryogenesis. Development 2011; 138:1935-45. [PMID: 21471154 DOI: 10.1242/dev.056861] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Endodermal organogenesis requires a precise orchestration of cell fate specification and cell movements, collectively coordinating organ size and shape. In Caenorhabditis elegans, uncoordinated-53 (unc-53) encodes a neural guidance molecule that directs axonal growth. One of the vertebrate homologs of unc-53 is neuron navigator 3 (Nav3). Here, we identified a novel vertebrate neuron navigator 3 isoform in zebrafish, nav3a, and we provide genetic evidence in loss- and gain-of-function experiments showing its functional role in endodermal organogenesis during zebrafish embryogenesis. In zebrafish embryos, nav3a expression was initiated at 22 hpf in the gut endoderm and at 40 hpf expanded to the newly formed liver bud. Endodermal nav3a expression was controlled by Wnt2bb signaling and was independent of FGF and BMP signaling. Morpholino-mediated knockdown of nav3a resulted in a significantly reduced liver size, and impaired development of pancreas and swim bladder. In vivo time-lapse imaging of liver development in nav3a morphants revealed a failure of hepatoblast movement out from the gut endoderm during the liver budding stage, with hepatoblasts being retained in the intestinal endoderm. In hepatocytes in vitro, nav3a acts as a positive modulator of actin assembly in lamellipodia and filipodia extensions, allowing cellular movement. Knockdown of nav3a in vitro impeded hepatocyte movement. Endodermal-specific overexpression of nav3a in vivo resulted in additional ectopic endodermal budding beyond the normal liver and pancreatic budding sites. We conclude that nav3a is required for directing endodermal organogenesis involving coordination of endodermal cell behavior.
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Affiliation(s)
- Christian Klein
- Department of Angiogenesis and Cardiovascular Pathology, Max-Delbrueck-Center for Molecular Medicine (MDC), Berlin, Germany
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Kur E, Christa A, Veth KN, Gajera CR, Andrade-Navarro MA, Zhang J, Willer JR, Gregg RG, Abdelilah-Seyfried S, Bachmann S, Link BA, Hammes A, Willnow TE. Loss of Lrp2 in zebrafish disrupts pronephric tubular clearance but not forebrain development. Dev Dyn 2011; 240:1567-77. [PMID: 21455927 DOI: 10.1002/dvdy.22624] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2011] [Indexed: 01/17/2023] Open
Abstract
Low-density lipoprotein receptor-related protein 2 (LRP2) is a multifunctional cell surface receptor conserved from nematodes to humans. In mammals, it acts as regulator of sonic hedgehog and bone morphogenetic protein pathways in patterning of the embryonic forebrain and as a clearance receptor in the adult kidney. Little is known about activities of this LRP in other phyla. Here, we extend the functional elucidation of LRP2 to zebrafish as a model organism of receptor (dys)function. We demonstrate that expression of Lrp2 in embryonic and larval fish recapitulates the patterns seen in mammalian brain and kidney. Furthermore, we studied the consequence of receptor deficiencies in lrp2 and in lrp2b, a homologue unique to fish, using ENU mutagenesis or morpholino knockdown. While receptor-deficient zebrafish suffer from overt renal resorption deficiency, their brain development proceeds normally, suggesting evolutionary conservation of receptor functions in pronephric duct clearance but not in patterning of the teleost forebrain.
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Affiliation(s)
- Esther Kur
- Max-Delbrück-Center for Molecular Medicine, Universitätsmedizin, Berlin, Germany
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48
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Abstract
Claudins serve essential roles in regulating paracellular permeability properties within occluding junctions. Recent studies have begun to elucidate developmental roles of claudins within immature tissues. This work has uncovered an involvement of several claudins in determining tight junction properties that have an effect on embryonic morphogenesis and physiology. During zebrafish brain morphogenesis, Claudin-5a determines the paracellular permeability of tight junctions within a transient neuroepithelial-ventricular barrier that maintains the hydrostatic fluid pressure required for brain ventricular lumen expansion. However, the roles of Claudins in development may well extend beyond being mere junctional components. Several post-translational modifications of Claudins have been characterized that indicate a direct regulation by developmental signals. This review focuses on the involvement of Claudin-5a in cerebral barrier formation in the zebrafish embryo and includes some speculations about possible modes of regulation.
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49
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Veerkamp J, Priller F, Abdelilah-Seyfried S. S10-03 Left/right signaling controls tissue polarization and morphogenesis during zebrafish heart tube formation. Mech Dev 2009. [DOI: 10.1016/j.mod.2009.06.968] [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: 11/29/2022]
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50
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Seipold S, Priller FC, Goldsmith P, Harris WA, Baier H, Abdelilah-Seyfried S. Non-SMC condensin I complex proteins control chromosome segregation and survival of proliferating cells in the zebrafish neural retina. BMC Dev Biol 2009; 9:40. [PMID: 19586528 PMCID: PMC2727499 DOI: 10.1186/1471-213x-9-40] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Accepted: 07/08/2009] [Indexed: 12/18/2022]
Abstract
Background The condensation of chromosomes and correct sister chromatid segregation during cell division is an essential feature of all proliferative cells. Structural maintenance of chromosomes (SMC) and non-SMC proteins form the condensin I complex and regulate chromosome condensation and segregation during mitosis. However, due to the lack of appropriate mutants, the function of the condensin I complex during vertebrate development has not been described. Results Here, we report the positional cloning and detailed characterization of retinal phenotypes of a zebrafish mutation at the cap-g locus. High resolution live imaging reveals that the progression of mitosis between prometa- to telophase is delayed and that sister chromatid segregation is impaired upon loss of CAP-G. CAP-G associates with chromosomes between prometa- and telophase of the cell cycle. Loss of the interaction partners CAP-H and CAP-D2 causes cytoplasmic mislocalization of CAP-G throughout mitosis. DNA content analysis reveals increased genomic imbalances upon loss of non-SMC condensin I subunits. Within the retina, loss of condensin I function causes increased rates of apoptosis among cells within the proliferative ciliary marginal zone (CMZ) whereas postmitotic retinal cells are viable. Inhibition of p53-mediated apoptosis partially rescues cell numbers in cap-g mutant retinae and allows normal layering of retinal cell types without alleviating their aberrant nuclear sizes. Conclusion Our findings indicate that the condensin I complex is particularly important within rapidly amplifying progenitor cell populations to ensure faithful chromosome segregation. In contrast, differentiation of postmitotic retinal cells is not impaired upon polyploidization.
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Affiliation(s)
- Sabine Seipold
- Max Delbrück Center (MDC) for Molecular Medicine, Berlin, Germany.
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