Role of pili in adherence of Pseudomonas aeruginosa to mammalian buccal epithelial cells.

Infection and Immunity
D E WoodsJ A Bass

Abstract

Adherence of Pseudomonas aeruginosa organisms to the upper respiratory epithelium of seriously ill patients in vitro is correlated with subsequent colonization of the respiratory tract by this opportunistic pathogen. The role of pili in the attachment to epithelial cells of P. aeruginosa was studied in an in vitro system employing human buccal epithelial cells and P. aeruginosa pretreated by various means. Pretreatment of the bacteria with proteases, heat, or Formalin caused a significant decrease in adherence. A decrease when compared with controls was also noted in the adherence of P. aeruginosa organisms to buccal epithelial cells preincubated with purified pili prepared from the strain used for adherence testing; however, pili prepared from a heterologous strain failed to block adherence. Similar results were obtained in serological studies when antisera to purified pili prepared from the strain used for adherence testing decreased adherence, whereas heterologous antiserum to pili did not decrease adherence. From these results it appears that pili mediate the adherence of P. aeruginosa organisms to human buccal epithelial cells.

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Citations

Sep 14, 2010·Journal of Bacteriology·Mohammed QutyanPeter Castric
Feb 3, 2005·Journal of Bacteriology·Erin J van SchaikRandall T Irvin
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May 16, 2002·Infection and Immunity·Jason E ComerPeter Castric
Apr 3, 2015·Microbiology and Molecular Biology Reviews : MMBR·Christopher A VakulskasTony Romeo

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