Wisskirchen, K. ; Kah, J.* ; Malo, A. ; Asen, T. ; Volz, T.* ; Allweiss, L.* ; Wettengel, J.M.* ; Lütgehetmann, M.* ; Urban, S.* ; Bauer, T. ; Dandri, M.* ; Protzer, U.
     
 
    
        
        
        T cell receptor grafting allows virological control of hepatitis B virus infection.
     
    
        
    
    
        
        J. Clin. Invest. 130, 2932-2945 (2019)
    
    
    
		
		
			
				T cell therapy is a promising means to treat chronic hepatitis B virus (HBV) infection and HBV-associated hepatocellular carcinoma. T cells engineered to express an HBV-specific T cell receptor (TCR) may cure an HBV infection upon adoptive transfer. We investigated the therapeutic potential and safety of T cells stably expressing high-affinity HBV envelope- or core-specific TCRs recognizing European and Asian HLA-A2 subtypes. Both CD8(+) and CD4(+) T cells from healthy donors and patients with chronic hepatitis B became polyfunctional effector cells when grafted with HBV-specific TCRs and eliminated HBV from infected HepG2-NTCP cell cultures. A single transfer of TCR-grafted T cells into HBV-infected, humanized mice controlled HBV infection, and virological markers declined by 4 to 5 log or below the detection limit. Engineered T cells specifically cleared infected hepatocytes without damaging noninfected cells when, as in a typical clinical setting, only a minority of hepatocytes were infected. Cell death was compensated by hepatocyte proliferation, and alanine amino transferase levels peaking between days 5 and 7 normalized again thereafter. Cotreatment with the entry inhibitor myrcludex B ensured long-term control of HBV infection. Thus, T cells stably transduced with highly functional TCRs have the potential to mediate clearance of HBV-infected cells, causing limited liver injury.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Hepatitis ; Immunology ; Immunotherapy ; T Cells ; Virology; Chimeric Antigen Receptor; Humanized Mice; Cancer Regression; Adoptive Transfer; Viral Clearance; Immunity; Cd8(+); Replication; Hepatocytes; Expression
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2019
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2019
    
 
    
    
        ISSN (print) / ISBN
        0021-9738
    
 
    
        e-ISSN
        1558-8238
    
 
    
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	    Band: 130,  
	    Heft: 7,  
	    Seiten: 2932-2945 
	    Artikelnummer: ,  
	    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
    
 
     
    
        POF Topic(s)
        30203 - Molecular Targets and Therapies
    
 
    
        Forschungsfeld(er)
        Immune Response and Infection
    
 
    
        PSP-Element(e)
        G-502700-003
G-502700-002
    
 
    
        Förderungen
        
    
 
    
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        Erfassungsdatum
        2019-05-10