Dehn, S.* ; Burkhard, R.* ; Leyens, J.* ; Kaiser, T.* ; Brandimarte, S.* ; Heiligensetzer, D.* ; Koppensteiner, H. ; Bajoghli, B.* ; Hailfinger, S.* ; Schilbach, K.* ; Schindler, M.
     
 
    
        
HIV-1 manipulates CD96 on CD4+ T cells to subvert antiviral immunity.
    
    
        
    
    
        
        Sci. Adv. 11:eadx7485 (2025)
    
    
    
		
		
			
				HIV-1 evades immune responses by modulating plasma membrane receptors. Using a flow cytometry-based screening, we profiled 332 surface receptors on HIV-1-infected primary CD4+ T cells and identified 23 down-regulated receptors, including known targets such as CD4, MHCI, CCR7, and CD62L. CD96, an inhibitory natural killer (NK) cell receptor poorly studied in human CD4+ T cells, was markedly down-regulated. This modulation, mediated by the viral proteins Nef and Vpu, surpassed that of other NK-associated receptors such as CD155 and NTB-A and is conserved across lentiviruses. CD96Hi CD4+ T cells exhibited a proinflammatory TH1/TH17 phenotype characterized by IFN-γ and IL-17 secretion and displayed impaired migration in vivo. Furthermore, CD96 ligation enhanced IFN-γ release upon viral peptide stimulation and promoted the secretion of TH1/TH17-associated cytokines. Our findings suggest that CD96 regulates antiviral immune responses and maintains proinflammatory properties in CD4+ T cells. Thus, its down-regulation represents a previously unknown HIV-1 immune evasion strategy, with implications for exploiting CD96 as immunotherapeutic target.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
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        Schlagwörter
        Human-immunodeficiency-virus; Down-modulation; Type-1 Nef; Surface Expression; Vpu; Receptor; Protein; Activation; Adhesion; Tigit
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2025
    
 
    
        Prepublished im Jahr 
        0
    
 
    
        HGF-Berichtsjahr
        2025
    
 
    
    
        ISSN (print) / ISBN
        2375-2548
    
 
    
        e-ISSN
        2375-2548
    
 
    
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	    Band: 11,  
	    Heft: 36,  
	    Seiten: ,  
	    Artikelnummer: eadx7485 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            American Association for the Advancement of Science (AAAS)
        
 
        
            Verlagsort
            Washington, DC [u.a.]
        
 
	
        
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            0000-00-00
        
 
        
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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-502700-006
    
 
    
        Förderungen
        Helmholtz Center Munich
University Hospital Tubingen
Deutsche Forschungsgemeinschaft
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2025-10-17