title: Use of cyclodextrin as an agent to induce excretion of Bordetella pertussis antigens.
abstract: This paper attempts to provide an explanation for the effect of cyclodextrin on the yield of Bordetella pertussis soluble antigens. It was demonstrated that the addition of cyclodextrin to the synthetic Stainer-Scholte liquid medium enhances the level of the intracellular form of adenylate cyclase (200 kDa) in the supernate. In addition to this effect, it has been reported that cyclodextrin also enhances the levels of two other extracellular proteins, pertussis toxin and filamentous hemagglutinin. As these antigens are structurally different, it seems that the effect of cyclodextrin is not specific. With the use of different buffer systems of well-known action on outer membrane stability it was possible to determine a relationship between the presence of cyclodextrin, destabilisation of the outer membrane and the release of proteins. It was determined that the cyclodextrin did not modify the fluidity of B. pertussis cells but produced a change of outer membrane permeability.
authors: Centro de Investigacion y Desarrollo en Fermentaciones Industriales (CINDEFI), Facultad De Ciencias Exactas UNLP, La Plata, Argentina.
authors: D
authors: D
authors: Hozbor
authors: M E
authors: ME
authors: Rodriguez
authors: O
authors: O
authors: Yantorno
mesh_terms: D037361:Adenylate Cyclase Toxin; D000262:Adenylyl Cyclases / Q000378:metabolism; D018829:Adhesins, Bacterial; D000942:Antigens, Bacterial / Q000378:metabolism*; D001886:Bordetella pertussis / Q000187:drug effects* / Q000276:immunology / Q000378:metabolism; D002463:Cell Membrane Permeability / Q000187:drug effects; D003470:Culture Media; D003505:Cyclodextrins / Q000494:pharmacology*; D004492:Edetic Acid / Q000494:pharmacology; D006388:Hemagglutinins / Q000378:metabolism; D037342:Pertussis Toxin; D010566:Virulence Factors, Bordetella / Q000378:metabolism
chemical_list: D037361:Adenylate Cyclase Toxin; D018829:Adhesins, Bacterial; D000942:Antigens, Bacterial; D003470:Culture Media; D003505:Cyclodextrins; D006388:Hemagglutinins; D010566:Virulence Factors, Bordetella; C065273:filamentous hemagglutinin adhesin, Bordetella pertussis; D004492:Edetic Acid; D037342:Pertussis Toxin; D000262:Adenylyl Cyclases