Zhao, Y.* ; Kwan, K.M.* ; Mailloux, C.M.* ; Lee, W.K.* ; Grinberg, A.* ; Wurst, W. ; Behringer, R.R.* ; Westphal, H.*
     
 
    
        
LIM-homeodomain proteins Lhx1 and Lhx5, and their cofactor Ldb1, control Purkinje cell differentiation in the developing cerebellum.
    
    
        
    
    
        
        Proc. Natl. Acad. Sci. U.S.A. 104, 13182-13186 (2007)
    
    
    
		
		
			
				Purkinje cells are one of the major types of neurons that form the neural circuitry in the cerebellum essential for fine control of movement and posture. During development, Purkinje cells also are critically involved in the regulation of proliferation of progenitors of granule cells, the other major type of neurons in the cerebellum. The process that controls differentiation of Purkinje cells from their early precursors is poorly understood. Here we report that two closely related LIM-homeobox genes, Lhx1 and Lhx5, were expressed in the developing Purkinje cells soon after they exited the cell cycle and migrated out of the cerebellar ventricular zone. Double-mutant mice lacking function of both Lhx1 and Lhx5 showed a severe reduction in the number of Purkinje cells. In addition, targeted inactivation of Ldb1, which encodes a cofactor for all LIM-homeodomain proteins, resulted in a similar phenotype. Our studies thus provide evidence that these transcription regulators are essential for controlling Purkinje cell differentiation in the developing mammalian cerebellum.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        CNS; development; embryo; mouse; transcription; GRANULE NEURON PRECURSORS; RECEPTOR ROR-ALPHA; HOMEOBOX GENE LIM1; SONIC HEDGEHOG; DEVELOPING BRAIN; SPINAL-CORD; IN-VIVO; EXPRESSION; MICE; PROLIFERATION
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2007
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2007
    
 
    
    
        ISSN (print) / ISBN
        0027-8424
    
 
    
        e-ISSN
        1091-6490
    
 
    
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	    Band: 104,  
	    Heft: 32,  
	    Seiten: 13182-13186 
	    Artikelnummer: ,  
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            National Academy of Sciences
        
 
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30204 - Cell Programming and Repair
    
 
    
        Forschungsfeld(er)
        Genetics and Epidemiology
    
 
    
        PSP-Element(e)
        G-500500-001
    
 
    
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        Erfassungsdatum
        2007-12-05