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          Non-Ionic Surfactant Vesicles         | 
        
      | Vaxjo ID | 68 | 
        
      | Vaccine Adjuvant Name | Non-Ionic Surfactant Vesicles | 
        
      | Alternative Names | NISV | 
        
      | Adjuvant VO ID | VO_0001307 | 
        
      | Description | Used as a primary vaccine adjuvant for entrapped antigen. NISV adjuvant biodegrades in vivo with release of the entrapped antigen. NISV adjuvant induces humoral and cell-mediated immunity and probably functions by targeting the antigen to the macrophage population (Vogel and Powell, 1995). | 
        
      | Stage of Development | Research | 
        
      | Components | Multi-lamellar vesicles comprising a mixture of non-ionic surfactant (e.g., 1-monopalmitoyl-rac-glycerol), cholesterol and dicetyl phosphate (Vogel and Powell, 1995). | 
        
      | Molecular Weight | 1-Monopalmitoyl | 
        
      | Appearance | Milky, colloidal suspension. | 
        
      | Storage | Component raw materials should be stored at low humidity. Refrigeration of NISV at 4° C is preferred for antigen-containing preparations (Vogel and Powell, 1995). | 
        
      | Function | Induces both a humoral and cell-mediated immune response. Preferentially stimulates the Th1 sub-population of T-helper cells. Effective with antigens within a broad size range, from short peptides to particulates. Adjuvant function is unrestricted by genetic background (Vogel and Powell, 1995). | 
        
      | Safety | Extremely low toxicity of NISV has been demonstrated in rat studies after administration by both the subcutaneous or intramuscular route. At doses up to 575 mg/kg body weight there was no persistence of NISV at the site of injection (s.c.)  (Vogel and Powell, 1995). | 
    	
    
      | Related Vaccine(s) |  | 
    	
	  | References | Vogel and Powell, 1995: Vogel FR, Powell MF. A compendium of vaccine adjuvants and excipients. Pharmaceutical biotechnology. 1995; 6; 141-228. [PubMed: 7551218]. |