Methods for inhibiting biofilm formation

Abstract

Disclosed are methods and kits of parts useful in inhibiting biofilm formation in vivo in subjects at risk of developing biofilms. These methods include inhibiting biofilm formation where the extracellular matrix in the biofilm includes poly-β-(1→6)glucosamine structures.

1 . (canceled) 
     
     
         2 . A method for inhibiting biofilm formation in a subject which method comprises:
 a) selecting an immune competent subject at risk of acquiring biofilm formation due to being at risk of cystic fibrosis, periodontitis or osteomyelitis;   b) administering to said subject an effective amount of a vaccine represented by formula (I):
   (A-B) x —C  (I)
 
   
       where A comprises from 3 to 12 repeating saccharide β-(1→6)-glucosamine units or mixtures thereof having the formula: 
       
         
           
           
               
               
           
         
         x represents the loading factor and is an integer from 10 to 40; 
         y is an integer from 1 to 10; 
         B is a linker group connecting A to C; and 
         C is an antigenic carrier; and 
         c) maintaining said patient under conditions where endogenous antibodies against said oligo-β-(1→6)-glucosamine units are present provided that said antibodies are generated prior to contracting said disease so as to inhibit biofilm formation if the subject acquires one of these diseases. 
       
     
     
         3 . The method of  claim 1 , wherein said vaccine is administered in a pharmaceutical composition. 
     
     
         4 . The method of  claim 3 , wherein said pharmaceutical composition comprises an aqueous diluent and an adjuvant. 
     
     
         5 . The method of  claim 4 , wherein said composition is sterile.