Words similar to pili
Example sentences for: pili
How can you use “pili” in a sentence? Here are some example sentences to help you improve your vocabulary:
Nontypeable H. influenzae strain M37 and an isogenic variant designated M37-1 which is deficient in expression of pili were kindly provided by Robert Munson [ 34 ] .
In view of these lines of evidence suggesting that nontypeable H influenzae grows as a biofilm during human respiratory tract infection, the goals of the present study are to 1) Develop an assay to study biofilms of nontypeable H. influenzae in vitro; 2) Characterize the extent to which isolates from the middle ear fluid of children with otitis media and from the sputum of adults with COPD form biofilms; 3) Begin to elucidate the characteristics of the outer membrane antigens of nontypeable H. influenzae during growth as a biofilm; and 4) Preliminarily assess the role of pili in biofilm formation.
Strain M37-1 lacks expression of pili as indicated by absence of hemagglutination and absence of a 22 kDa band on SDS-PAGE corresponding to pilin [ 34 ] . In an experiment comparing biofilm formation in 4 duplicate wells, strain M37-1, the pilus deficient variant, yielded an average optical density of 0.204 whereas its isogenic parent strain, M37, yielded an average optical density of 0.884.
Role of pili in biofilm formation
For example, an increase in asialo-GM 1 glycoproteins on the apical surface of CF airway epithelial cells provides greater opportunity for adhesion by the type IV pili of P. aeruginosa [ 3 7 8 ] . Furthermore, the first extracellular domain of wild type CFTR has been found to act as a P. aeruginosa -specific receptor, which is involved in the clearance of P. aeruginosa from the airways via epithelial cell desquamation [ 9 10 11 ] , a process greatly impaired in the CF lung.
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