Schmidt, A.* ; Hrupka, B.J.* ; van Bebber, F.* ; Sunil Kumar, S.* ; Feng, X.* ; Tschirner, S.K.* ; Aßfalg, M.* ; Müller, S.A.* ; Hilger, L.S.* ; Hofmann, L.I.* ; Pigoni, M.* ; Jocher, G.* ; Voytyuk, I.* ; Self, E.L.* ; Ito, M.* ; Hyakkoku, K.* ; Yoshimura, A.* ; Horiguchi, N.* ; Feederle, R. ; de Strooper, B.* ; Schulte-Merker, S.* ; Lammert, E.* ; Moechars, D.* ; Schmid, B.* ; Lichtenthaler, S.F.*
     
 
    
        
The Alzheimer's disease-linked protease BACE2 cleaves VEGFR3 and modulates its signaling.
    
    
        
    
    
        
        J. Clin. Invest. 134:e170550 (2024)
    
    
    
		
		
			
				The β-secretase BACE1 is a central drug target for Alzheimer's disease. Clinically tested, BACE1-directed inhibitors also block the homologous protease BACE2. Yet, little is known about physiological BACE2 substrates and functions in vivo. Here, we identify BACE2 as the protease shedding the lymphangiogenic vascular endothelial growth factor receptor 3 (VEGFR3). Inactivation of BACE2, but not BACE1, inhibited shedding of VEGFR3 from primary human lymphatic endothelial cells (LECs) and reduced release of the shed, soluble VEGFR3 (sVEGFR3) ectodomain into the blood of mice, non-human primates and humans. Functionally, BACE2 inactivation increased full-length VEGFR3 and enhanced VEGFR3 signaling in LECs and also in vivo in zebrafish, where enhanced migration of LECs was observed. Thus, this study identifies BACE2 as a modulator of lymphangiogenic VEGFR3 signaling and demonstrates the utility of sVEGFR3 as a pharmacodynamic plasma marker for BACE2 activity in vivo, a prerequisite for developing BACE1-selective inhibitors for a safer prevention of Alzheimer's disease.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Aging ; Alzheimer Disease ; Drug Therapy; Amyloid Precursor Protein; Growth-factor Receptor-3; Beta-site; Computational Platform; Vascular Development; Proteomic Analysis; Randomized-trial; Verubecestat; Morphogenesis; Enrichment
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2024
    
 
    
        Prepublished im Jahr 
        0
    
 
    
        HGF-Berichtsjahr
        2024
    
 
    
    
        ISSN (print) / ISBN
        0021-9738
    
 
    
        e-ISSN
        1558-8238
    
 
    
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	    Band: 134,  
	    Heft: 16,  
	    Seiten: ,  
	    Artikelnummer: e170550 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            American Society of Clinical Investigation
        
 
        
            Verlagsort
            2015 Manchester Rd, Ann Arbor, Mi 48104 Usa
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        CF Monoclonal Antibodies (CF-MAB)
    
 
    
        POF Topic(s)
        30201 - Metabolic Health
    
 
    
        Forschungsfeld(er)
        
    
 
    
        PSP-Element(e)
        A-631900-001
    
 
    
        Förderungen
        Helmholtz Association
CiM-IMPRS graduate school
Federal Ministry of Education and Research
Cure Alzheimer's Fund
Institute for the Promotion of Innovation by Science and Technology in Flanders
Alzheimer's Association
Germany's Excellence Strategy within the framework of the Munich Cluster for Systems Neurology
CRC 1348 (DFG)
Deutsche Forschungsgemeinschaft (DFG, German Research foundation)
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2024-06-20