In vivo adherence of Pseudomonas aeruginosa to rat bladder epithelium.
To date, the study of bacterial adherence to uroepithelial cells has utilized considerable variation in methodology, resulting in highly divergent conclusions. In an attempt to standardize methodology, a modified method is described to more accurately measure the in vivo bacterial adherence to rat bladder uroepithelium utilizing Pseudomonas species labeled with 2-[3H]adenine. Two isolates of P. aeruginosa were selected for more intensive study; one showed consistently good adherence; the second strain always adhered poorly, thus providing a negative control. Maximum adherence was detected after 60 min of incubation. Neither of the two Pseudomonas isolates when examined by transmission electron microscopy showed evidence of pili formation. The morphological features of Pseudomonas adherence to bladder mucosa as studied by scanning electron microscopy are described.
D000818:Animals; D002448:Cell Adhesion; D004195:Disease Models, Animal; D005260:Female; D006863:Hydrogen-Ion Concentration; D008855:Microscopy, Electron, Scanning; D011552:Pseudomonas Infections / Q000382:microbiology / Q000503:physiopathology*; D011550:Pseudomonas aeruginosa / Q000472:pathogenicity; D051381:Rats; D013045:Species Specificity; D013997:Time Factors; D001743:Urinary Bladder / Q000382:microbiology*