Staphylococcus aureus Serine protease-like protein A (SplA) induces IL-8 by keratinocytes and synergizes with IL-17A.
    
    
        
    
    
        
        Cytokine 180:156634 (2024)
    
    
    
		
		
			
				BACKGROUND: Serine protease-like (Spl) proteins produced by Staphylococcus (S.) aureus have been associated with allergic inflammation. However, effects of Spls on the epidermal immune response have not been investigated. OBJECTIVES: To assess the epidermal immune response to SplA, SplD and SplE dependent on differentiation of keratinocytes and a Th2 or Th17 cytokine milieu. METHODS: Human keratinocytes of healthy controls and a STAT3-hyper-IgE syndrome (STAT3-HIES) patient were cultured in different calcium concentrations in the presence of Spls and Th2 or Th17 cytokines. Keratinocyte-specific IL-8 production and concomitant migration of neutrophils were assessed. RESULTS: SplE and more significantly SplA, induced IL-8 in keratinocytes. Suprabasal-like keratinocytes showed a higher Spl-mediated IL-8 production and neutrophil migration compared to basal-like keratinocytes. Th17 cytokines amplified Spl-mediated IL-8 production, which correlated with neutrophil recruitment. Neutrophil recruitment by keratinocytes of the STAT3-HIES patient was similar to healthy control cells. CONCLUSION: S. aureus-specific Spl proteases synergized with IL-17A on human keratinocytes with respect to IL-8 release and neutrophil migration, highlighting the importance of keratinocytes and Th17 immunity in barrier function.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Keratinocytes ; Neutrophil Migration ; S. Aureus ; Stat3-hyper Ige Syndrome (hies) ; Serine Protease-like Proteins (spls) ; Th2/th17 Immunity; Atopic-dermatitis; Skin Barrier; Extracellular Proteases; Activated Receptor-2; Stat3 Mutations; Th2 Cytokines; Jobs Syndrome; Differentiation; Expression; Sensitization
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2024
    
 
    
        Prepublished im Jahr 
        0
    
 
    
        HGF-Berichtsjahr
        2024
    
 
    
    
        ISSN (print) / ISBN
        1043-4666
    
 
    
        e-ISSN
        1096-0023
    
 
    
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	    Band: 180,  
	    Heft: ,  
	    Seiten: ,  
	    Artikelnummer: 156634 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Elsevier
        
 
        
            Verlagsort
            Oxford [u.a.]
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Environmental Medicine (IEM)
    
 
    
        POF Topic(s)
        30202 - Environmental Health
    
 
    
        Forschungsfeld(er)
        Allergy	
    
 
    
        PSP-Element(e)
        G-503400-002
G-503400-001
    
 
    
        Förderungen
        Helmholtz-Future topic "Immunology and Inflammation"
Job Research Foundation
German Research Foundation
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2024-07-16