Identification of a hybrid myocardial zone in the mammalian heart after birth

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F17%3A00477526" target="_blank" >RIV/67985823:_____/17:00477526 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11110/17:10362005

Výsledek na webu

<a href="http://dx.doi.org/10.1038/s41467-017-00118-1" target="_blank" >http://dx.doi.org/10.1038/s41467-017-00118-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41467-017-00118-1" target="_blank" >10.1038/s41467-017-00118-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Identification of a hybrid myocardial zone in the mammalian heart after birth

Popis výsledku v původním jazyce

Noncompaction cardiomyopathy is characterized by the presence of extensive trabeculations, which could lead to heart failure and malignant arrhythmias. How trabeculations resolve to form compact myocardium is poorly understood. Elucidation of this process is critical to understanding the pathophysiology of noncompaction disease. Here we use genetic lineage tracing to mark the Nppa(+) or Hey(2+) cardiomyocytes as trabecular and compact components of the ventricular wall. We find that Nppa(+) and Hey(2+) cardiomyocytes, respectively, from the endocardial and epicardial zones of the ventricular wall postnatally. Interposed between these two postnatal layers is a hybrid zone, which is composed of cells derived from both the Nppa(+) and Hey(2+) populations. Inhibition of the fetal Hey(2+) cell contribution to the hybrid zone results in persistence of excessive trabeculations in postnatal heart. Our findings indicate that the expansion of Hey(2+) fetal compact component, and its contribution to the hybrid myocardial zone, are essential for normal formation of the ventricular walls.

Název v anglickém jazyce

Identification of a hybrid myocardial zone in the mammalian heart after birth

Popis výsledku anglicky

Noncompaction cardiomyopathy is characterized by the presence of extensive trabeculations, which could lead to heart failure and malignant arrhythmias. How trabeculations resolve to form compact myocardium is poorly understood. Elucidation of this process is critical to understanding the pathophysiology of noncompaction disease. Here we use genetic lineage tracing to mark the Nppa(+) or Hey(2+) cardiomyocytes as trabecular and compact components of the ventricular wall. We find that Nppa(+) and Hey(2+) cardiomyocytes, respectively, from the endocardial and epicardial zones of the ventricular wall postnatally. Interposed between these two postnatal layers is a hybrid zone, which is composed of cells derived from both the Nppa(+) and Hey(2+) populations. Inhibition of the fetal Hey(2+) cell contribution to the hybrid zone results in persistence of excessive trabeculations in postnatal heart. Our findings indicate that the expansion of Hey(2+) fetal compact component, and its contribution to the hybrid myocardial zone, are essential for normal formation of the ventricular walls.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30106 - Anatomy and morphology (plant science to be 1.6)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature Communications

ISSN

2041-1723

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

Jul 20

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

000405900400004

EID výsledku v databázi Scopus

2-s2.0-85025436239