Open Access Green as soon as Postprint is submitted to ZB.
		
    The adult substantia nigra contains progenitor cells with neurogenic potential.
        
        J. Neurosci. 22, 6639-6649 (2002)
    
    
    
	    In Parkinson's disease, progressive loss of dopaminergic neurons in the substantia nigra pars compacta (SN) leads to debilitating motor dysfunction. One current therapy aims at exogenous cellular replacement of dopaminergic function by transplanting fetal midbrain cells into the striatum, the main projection area of the SN. However, results using this approach have shown variable success. It has been proposed that cellular replacement by endogenous stem/progenitor cells may be useful for therapeutic interventions in neurodegenerative diseases, including Parkinson's disease. Although it is widely accepted that progenitor cells are present in different areas of the adult CNS, it is unclear whether such cells reside in the adult SN and whether they have the potential to replace degenerating neurons. Here, we describe a population of actively dividing progenitor cells in the adult SN, which in situ give rise to new mature glial cells but not to neurons. However, after removal from the SN, these progenitor cells immediately have the potential to differentiate into neurons. Transplantation of freshly isolated SN progenitor cells into the adult hippocampus showed that these cells also have a neuronal potential under in vivo conditions. These results suggest that progenitor cells reside in the adult SN and can give rise to new neurons when exposed to appropriate environmental signals. This developmental potential of SN progenitor cells might be useful for future endogenous cell replacement strategies in Parkinson's disease.
	
	
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
     
    
     
     
    
    
        Language
        english
    
 
    
        Publication Year
        2002
    
 
     
    
        HGF-reported in Year
        0
    
 
    
    
        ISSN (print) / ISBN
        0270-6474
    
 
    
        e-ISSN
        1529-2401
    
 
    
     
     
	     
	 
	 
    
        Journal
        Journal of Neuroscience
    
 
	
    
        Quellenangaben
        
	    Volume: 22,  
	    Issue: 15,  
	    Pages: 6639-6649 
	    
	    
	
    
 
    
         
        
            Publisher
            Society for Neuroscience
        
 
         
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Reviewing status
        Peer reviewed
    
 
    
        Institute(s)
        Institute of Developmental Genetics (IDG)
    
 
     
     
     
     
     	
    
        PubMed ID
        12151543
    
    
        Erfassungsdatum
        2002-12-31