The long noncoding RNA Charme supervises cardiomyocyte maturation by controlling cell differentiation programs in the developing heart

被引:6
|
作者
Taliani, Valeria [1 ,7 ]
Buonaiuto, Giulia [1 ]
Desideri, Fabio [2 ]
Setti, Adriano [1 ]
Santini, Tiziana [1 ]
Galfre, Silvia [2 ]
Schirone, Leonardo [3 ]
Mariani, Davide [4 ]
Frati, Giacomo [3 ]
Valenti, Valentina [3 ]
Sciarretta, Sebastiano [3 ]
Perlas, Emerald [5 ]
Nicoletti, Carmine [6 ]
Musaro, Antonio [6 ]
Ballarino, Monica [1 ]
机构
[1] Sapienza Univ Rome, Dept Biol & Biotechnol Charles Darwin, Rome, Italy
[2] IIT, Ctr Life Nano & Neurosci, Rome, Italy
[3] Sapienza Univ Rome, Dept Med Surg Sci & Biotechnol, Latina, Italy
[4] Ist Italiano Tecnol, Ctr Human Technol, Genoa, Italy
[5] EMBL Rome, Epigenet & Neurobiol Unit, Monterotondo, Italy
[6] Sapienza Univ Rome, Unit Histol & Med Embryol, DAHFMO, Rome, Italy
[7] EMBL, Genome Biol Unit, Heidelberg, Germany
来源
ELIFE | 2023年 / 12卷
关键词
ncRNA; lncRNA; cardiomyogenesis; heart; muscle; development; Mouse; DOMINANT DISTAL MYOPATHY; GENE-EXPRESSION; TRANSCRIPTION; BINDING; PROTEIN; MOUSE; DEFICIENCY; REGULATOR; MUTATION; LNCRNA;
D O I
10.7554/eLife.81360
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Long noncoding RNAs (lncRNAs) are emerging as critical regulators of heart physiology and disease, although the studies unveiling their modes of action are still limited to few examples. We recently identified pCharme, a chromatin-associated lncRNA whose functional knockout in mice results in defective myogenesis and morphological remodeling of the cardiac muscle. Here, we combined Cap-Analysis of Gene Expression (CAGE), single-cell (sc)RNA sequencing, and whole-mount in situ hybridization analyses to study pCharme cardiac expression. Since the early steps of cardiomyogenesis, we found the lncRNA being specifically restricted to cardiomyocytes, where it assists the formation of specific nuclear condensates containing MATR3, as well as important RNAs for cardiac development. In line with the functional significance of these activities, pCharme ablation in mice results in a delayed maturation of cardiomyocytes, which ultimately leads to morphological alterations of the ventricular myocardium. Since congenital anomalies in myocardium are clinically relevant in humans and predispose patients to major complications, the identification of novel genes controlling cardiac morphology becomes crucial. Our study offers unique insights into a novel lncRNA-mediated regulatory mechanism promoting cardiomyocyte maturation and bears relevance to Charme locus for future theranostic applications.
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页数:29
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