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    A proteolytic fragment of histone deacetylase 4 protects the heart from failure by regulating the hexosamine biosynthetic pathway.
        
        Nat. Med. 24, 62-72 (2018)
    
    
    
				The stress-responsive epigenetic repressor histone deacetylase 4 (HDAC4) regulates cardiac gene expression. Here we show that the levels of an N-terminal proteolytically derived fragment of HDAC4, termed HDAC4-NT, are lower in failing mouse hearts than in healthy control hearts. Virus-mediated transfer of the portion of the Hdac4 gene encoding HDAC4-NT into the mouse myocardium protected the heart from remodeling and failure; this was associated with decreased expression of Nr4a1, which encodes a nuclear orphan receptor, and decreased NR4A1-dependent activation of the hexosamine biosynthetic pathway (HBP). Conversely, exercise enhanced HDAC4-NT levels, and mice with a cardiomyocyte-specific deletion of Hdac4 show reduced exercise capacity, which was characterized by cardiac fatigue and increased expression of Nr4a1. Mechanistically, we found that NR4A1 negatively regulated contractile function in a manner that depended on the HBP and the calcium sensor STIM1. Our work describes a new regulatory axis in which epigenetic regulation of a metabolic pathway affects calcium handling. Activation of this axis during intermittent physiological stress promotes cardiac function, whereas its impairment in sustained pathological cardiac stress leads to heart failure.
			
			
		Impact Factor
					Scopus SNIP
					Web of Science
Times Cited
					Times Cited
Scopus
Cited By
					
					Cited By
Altmetric
					
				32.621
					5.541
					48
					58
					
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
     
    
     
     
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2018
    
 
    
        Prepublished im Jahr 
        2017
    
 
    
        HGF-Berichtsjahr
        2017
    
 
    
    
        ISSN (print) / ISBN
        1078-8956
    
 
    
        e-ISSN
        1546-170X
    
 
     
     
     
	     
	 
	 
    
        Zeitschrift
        Nature medicine
    
 
		
    
        Quellenangaben
        
	    Band: 24,  
	    Heft: 1,  
	    Seiten: 62-72 
	    
	    
	
    
 
  
         
        
            Verlag
            Nature Publishing Group
        
 
        
            Verlagsort
            New York, NY
        
 
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Diabetes and Cancer (IDC)
    
 
    
        POF Topic(s)
        30201 - Metabolic Health
90000 - German Center for Diabetes Research
 
    90000 - German Center for Diabetes Research
        Forschungsfeld(er)
        Helmholtz Diabetes Center
    
 
    
        PSP-Element(e)
        G-502500-001
G-501900-251
 
     
     	
    G-501900-251
        PubMed ID
        29227474
    
    
        DOI
        10.1038/nm.4452
    
    
        Scopus ID
        85040356572
    
    
        WOS ID
        WOS:000422965900012
    
    
        Erfassungsdatum
        2018-01-20