Empl, L.* ; Chovsepian, A.* ; Chahin, M.* ; Kan, W.Y.V.* ; Fourneau, J.* ; Van Steenbergen, V.* ; Weidinger, S.* ; Marcantoni, M.* ; Ghanem, A.* ; Bradley, P.* ; Conzelmann, K.K.* ; Cai, R. ; Ghasemigharagoz, A. ; Ertürk, A. ; Wagner, I.* ; Kreutzfeldt, M.* ; Merkler, D.* ; Liebscher, S.* ; Bareyre, F.M.*
     
 
    
        
Selective plasticity of callosal neurons in the adult contralesional cortex following murine traumatic brain injury.
    
    
        
    
    
        
        Nat. Commun. 13:2659 (2022)
    
    
    
		
		
			
				Traumatic brain injury (TBI) results in deficits that are often followed by recovery. The contralesional cortex can contribute to this process but how distinct contralesional neurons and circuits respond to injury remains to be determined. To unravel adaptations in the contralesional cortex, we used chronic in vivo two-photon imaging. We observed a general decrease in spine density with concomitant changes in spine dynamics over time. With retrograde co-labeling techniques, we showed that callosal neurons are uniquely affected by and responsive to TBI. To elucidate circuit connectivity, we used monosynaptic rabies tracing, clearing techniques and histology. We demonstrate that contralesional callosal neurons adapt their input circuitry by strengthening ipsilateral connections from pre-connected areas. Finally, functional in vivo two-photon imaging demonstrates that the restoration of pre-synaptic circuitry parallels the restoration of callosal activity patterns. Taken together our study thus delineates how callosal neurons structurally and functionally adapt following a contralateral murine TBI.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2022
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2022
    
 
    
    
        ISSN (print) / ISBN
        2041-1723
    
 
    
        e-ISSN
        2041-1723
    
 
    
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	    Band: 13,  
	    Heft: 1,  
	    Seiten: ,  
	    Artikelnummer: 2659 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Nature Publishing Group
        
 
        
            Verlagsort
            London
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute for Tissue Engineering and Regenerative Medicine (ITERM)
    
 
    
        POF Topic(s)
        30205 - Bioengineering and Digital Health
    
 
    
        Forschungsfeld(er)
        Enabling and Novel Technologies
    
 
    
        PSP-Element(e)
        G-505800-001
    
 
    
        Förderungen
        Deutsche Forschungsgemeinschaft (German Research Foundation)
    
 
    
        Copyright
        
    
 	
    
    
    
    
        Erfassungsdatum
        2022-06-09