miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations
MicroRNAs (miRs) appear to be major, yet poorly understood players in regulatory networks guiding cardiogenesis. We sought to identify miRs with unknown functions during cardiogenesis analyzing the miR-profile of multipotent <i>Nkx2.5</i> enhancer cardiac progenitor cells (NkxCE-CPCs). B...
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Language: | English |
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MDPI AG
2020-02-01
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Series: | International Journal of Molecular Sciences |
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Online Access: | https://www.mdpi.com/1422-0067/21/3/1158 |
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doaj-3774e7a473ed4b2593dc388fe0243fdb |
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record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sarah C. Hoelscher Theresia Stich Anne Diehm Harald Lahm Martina Dreßen Zhong Zhang Irina Neb Zouhair Aherrahrou Jeanette Erdmann Heribert Schunkert Gianluca Santamaria Giovanni Cuda Ralf Gilsbach Lutz Hein Rüdiger Lange David Hassel Markus Krane Stefanie A. Doppler |
spellingShingle |
Sarah C. Hoelscher Theresia Stich Anne Diehm Harald Lahm Martina Dreßen Zhong Zhang Irina Neb Zouhair Aherrahrou Jeanette Erdmann Heribert Schunkert Gianluca Santamaria Giovanni Cuda Ralf Gilsbach Lutz Hein Rüdiger Lange David Hassel Markus Krane Stefanie A. Doppler miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations International Journal of Molecular Sciences microrna mir-128 cardiac development cardiac progenitor cells <i>nkx2.5</i> cardiac enhancer |
author_facet |
Sarah C. Hoelscher Theresia Stich Anne Diehm Harald Lahm Martina Dreßen Zhong Zhang Irina Neb Zouhair Aherrahrou Jeanette Erdmann Heribert Schunkert Gianluca Santamaria Giovanni Cuda Ralf Gilsbach Lutz Hein Rüdiger Lange David Hassel Markus Krane Stefanie A. Doppler |
author_sort |
Sarah C. Hoelscher |
title |
miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations |
title_short |
miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations |
title_full |
miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations |
title_fullStr |
miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations |
title_full_unstemmed |
miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell Populations |
title_sort |
mir-128a acts as a regulator in cardiac development by modulating differentiation of cardiac progenitor cell populations |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1422-0067 |
publishDate |
2020-02-01 |
description |
MicroRNAs (miRs) appear to be major, yet poorly understood players in regulatory networks guiding cardiogenesis. We sought to identify miRs with unknown functions during cardiogenesis analyzing the miR-profile of multipotent <i>Nkx2.5</i> enhancer cardiac progenitor cells (NkxCE-CPCs). Besides well-known candidates such as miR-1, we found about 40 miRs that were highly enriched in NkxCE-CPCs, four of which were chosen for further analysis. Knockdown in zebrafish revealed that only miR-128a affected cardiac development and function robustly. For a detailed analysis, loss-of-function and gain-of-function experiments were performed during in vitro differentiations of transgenic murine pluripotent stem cells. MiR-128a knockdown (1) increased <i>Isl1</i>, <i>Sfrp5</i>, and <i>Hcn4</i> (cardiac transcription factors) but reduced <i>Irx4</i> at the onset of cardiogenesis, (2) upregulated <i>Isl1</i>-positive CPCs, whereas NkxCE-positive CPCs were downregulated, and (3) increased the expression of the ventricular cardiomyocyte marker <i>Myl2</i> accompanied by a reduced beating frequency of early cardiomyocytes. Overexpression of miR-128a (4) diminished the expression of <i>Isl1</i>, <i>Sfrp5</i>, <i>Nkx2.5</i>, and <i>Mef2c</i>, but increased <i>Irx4</i>, (5) enhanced NkxCE-positive CPCs, and (6) favored nodal-like cardiomyocytes (<i>Tnnt2</i><sup>+</sup>, <i>Myh6</i><sup>+</sup>, <i>Shox2</i><sup>+</sup>) accompanied by increased beating frequencies. In summary, we demonstrated that miR-128a plays a so-far unknown role in early heart development by affecting the timing of CPC differentiation into various cardiomyocyte subtypes. |
topic |
microrna mir-128 cardiac development cardiac progenitor cells <i>nkx2.5</i> cardiac enhancer |
url |
https://www.mdpi.com/1422-0067/21/3/1158 |
work_keys_str_mv |
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spelling |
doaj-3774e7a473ed4b2593dc388fe0243fdb2020-11-25T01:45:08ZengMDPI AGInternational Journal of Molecular Sciences1422-00672020-02-01213115810.3390/ijms21031158ijms21031158miR-128a Acts as a Regulator in Cardiac Development by Modulating Differentiation of Cardiac Progenitor Cell PopulationsSarah C. Hoelscher0Theresia Stich1Anne Diehm2Harald Lahm3Martina Dreßen4Zhong Zhang5Irina Neb6Zouhair Aherrahrou7Jeanette Erdmann8Heribert Schunkert9Gianluca Santamaria10Giovanni Cuda11Ralf Gilsbach12Lutz Hein13Rüdiger Lange14David Hassel15Markus Krane16Stefanie A. Doppler17Department of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyInstitute for Cardiogenetics, University of Lübeck, 23562 Lübeck, GermanyInstitute for Cardiogenetics, University of Lübeck, 23562 Lübeck, GermanyGerman Center for Cardiovascular Research (DZHK)—Partner Site Munich Heart Alliance, Biedersteiner Strasse 29, 80802 München, GermanyMedical Department 1, Cardiology, Klinikum rechts der Isar, Technische Universität, 81675 Munich, GermanyDepartment of Experimental and Clinical Medicine, Stem Cell Laboratory, Research Center of Advanced Biochemistry and Molecular Biology, University “Magna Graecia” of Catanzaro, Viale Europa, 88100 Catanzaro, ItalyInstitute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Albertstrasse 25, 79104 Freiburg, GermanyInstitute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Albertstrasse 25, 79104 Freiburg, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Medicine III, Cardiology, Angiology, Pneumology, University Hospital Heidelberg, 69120 Heidelberg, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyDepartment of Cardiovascular Surgery, German Heart Center Munich at the Technische Universität München, 80636 Munich, GermanyMicroRNAs (miRs) appear to be major, yet poorly understood players in regulatory networks guiding cardiogenesis. We sought to identify miRs with unknown functions during cardiogenesis analyzing the miR-profile of multipotent <i>Nkx2.5</i> enhancer cardiac progenitor cells (NkxCE-CPCs). Besides well-known candidates such as miR-1, we found about 40 miRs that were highly enriched in NkxCE-CPCs, four of which were chosen for further analysis. Knockdown in zebrafish revealed that only miR-128a affected cardiac development and function robustly. For a detailed analysis, loss-of-function and gain-of-function experiments were performed during in vitro differentiations of transgenic murine pluripotent stem cells. MiR-128a knockdown (1) increased <i>Isl1</i>, <i>Sfrp5</i>, and <i>Hcn4</i> (cardiac transcription factors) but reduced <i>Irx4</i> at the onset of cardiogenesis, (2) upregulated <i>Isl1</i>-positive CPCs, whereas NkxCE-positive CPCs were downregulated, and (3) increased the expression of the ventricular cardiomyocyte marker <i>Myl2</i> accompanied by a reduced beating frequency of early cardiomyocytes. Overexpression of miR-128a (4) diminished the expression of <i>Isl1</i>, <i>Sfrp5</i>, <i>Nkx2.5</i>, and <i>Mef2c</i>, but increased <i>Irx4</i>, (5) enhanced NkxCE-positive CPCs, and (6) favored nodal-like cardiomyocytes (<i>Tnnt2</i><sup>+</sup>, <i>Myh6</i><sup>+</sup>, <i>Shox2</i><sup>+</sup>) accompanied by increased beating frequencies. In summary, we demonstrated that miR-128a plays a so-far unknown role in early heart development by affecting the timing of CPC differentiation into various cardiomyocyte subtypes.https://www.mdpi.com/1422-0067/21/3/1158micrornamir-128cardiac developmentcardiac progenitor cells<i>nkx2.5</i> cardiac enhancer |