Grimus, S.* ; Sarangova, V.* ; Welzel, P.B.* ; Ludwig, B. ; Seissler, J.* ; Kemter, E.* ; Wolf, E.* ; Ali, A.*
     
 
    
        
Immunoprotection strategies in β-Cell replacement therapy: A closer look at porcine islet xenotransplantation.
    
    
        
    
    
        
        Adv. Sci.:e2401385 (2024)
    
    
    
		
		
			
				Type 1 diabetes mellitus (T1DM) is characterized by absolute insulin deficiency primarily due to autoimmune destruction of pancreatic β-cells. The prevailing treatment for T1DM involves daily subcutaneous insulin injections, but a substantial proportion of patients face challenges such as severe hypoglycemic episodes and poorly controlled hyperglycemia. For T1DM patients, a more effective therapeutic option involves the replacement of β-cells through allogeneic transplantation of either the entire pancreas or isolated pancreatic islets. Unfortunately, the scarcity of transplantable human organs has led to a growing list of patients waiting for an islet transplant. One potential alternative is xenotransplantation of porcine pancreatic islets. However, due to inter-species molecular incompatibilities, porcine tissues trigger a robust immune response in humans, leading to xenograft rejection. Several promising strategies aim to overcome this challenge and enhance the long-term survival and functionality of xenogeneic islet grafts. These strategies include the use of islets derived from genetically modified pigs, immunoisolation of islets by encapsulation in biocompatible materials, and the creation of an immunomodulatory microenvironment by co-transplanting islets with accessory cells or utilizing immunomodulatory biomaterials. This review concentrates on delineating the primary obstacles in islet xenotransplantation and elucidates the fundamental principles and recent breakthroughs aimed at addressing these challenges.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Review
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Encapsulation ; Genetic Engineering ; Immunomodulation ; Pancreatic Islets ; Pig ; Xenotransplantation; Mesenchymal Stem-cells; Regulatory T-cells; Diabetic Nonhuman-primates; Human Heme Oxygenase-1; Human Nk Cytotoxicity; Natural-killer-cells; Transgenic Expression; Pancreatic-islets; Pig Islets; Polyethylene-glycol
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2024
    
 
    
        Prepublished im Jahr 
        0
    
 
    
        HGF-Berichtsjahr
        2024
    
 
    
    
        ISSN (print) / ISBN
        2198-3844
    
 
    
        e-ISSN
        2198-3844
    
 
    
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	    Artikelnummer: e2401385 
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            Verlag
            Wiley
        
 
        
            Verlagsort
            Weinheim
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Pancreatic Islet Research (IPI)
    
 
    
        POF Topic(s)
        90000 - German Center for Diabetes Research
    
 
    
        Forschungsfeld(er)
        Helmholtz Diabetes Center
    
 
    
        PSP-Element(e)
        G-502600-007
    
 
    
        Förderungen
        JDRF
European Union
German Center for Diabetes Research (DZD e.V.)
Deutsche Forschungsgemeinschaft (DFG)
Deutsche Forschungsgemeinschaft
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2024-06-18