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dc.contributor.authorReimann, Keith A.
dc.contributor.authorBelli, Aaron J.
dc.contributor.authorFulco, Sarah
dc.contributor.authorWarfel, Jason M.
dc.contributor.authorWang, Rijian
dc.contributor.authorCavacini, Lisa
dc.contributor.authorPapin, James F.
dc.contributor.authorMerkel, Steven F.
dc.contributor.authorMerkel, Tod J.
dc.contributor.authorKlempner, Mark S.
dc.date2022-08-11T08:08:15.000
dc.date.accessioned2022-08-23T15:47:58Z
dc.date.available2022-08-23T15:47:58Z
dc.date.issued2016-05-20
dc.date.submitted2016-07-13
dc.identifier.doi10.13028/wv29-9767
dc.identifier.urihttp://hdl.handle.net/20.500.14038/28107
dc.description<p>Sarah Fulco participated in this study as a medical student in the Senior Scholars research program at the University of Massachusetts Medical School.</p>
dc.description.abstractThe respiratory bacterial infection caused by Bordetella pertussis (whooping cough) is the only vaccine-preventable disease whose incidence has been increasing over the last 3 decades. To better understand the resurgence of this infection, a baboon animal model of pertussis infection has been developed. Naïve baboons that recover from experimental pertussis infection are resistant both to clinical disease and to airway colonization when re-challenged. In contrast, animals vaccinated with acellular pertussis vaccine and experimentally challenged do not develop disease, but airways remain colonized for 4-6 weeks. We explored the possibility that the IgG antibody response to pertussis infection is qualitatively different from antibodies induced by acellular pertussis vaccination. IgG was purified from pertussis-convalescent baboons shown to be resistant to pertussis disease and airway colonization. Purified IgG contained high titers to pertussis toxin, pertactin, and filamentous hemagglutinin. This pertussis-immune IgG or control IgG was passively transferred to naïve, juvenile baboons before experimental airway pertussis inoculation. The control animal that received normal IgG developed a typical symptomatic infection including leukocytosis, cough and airway colonization for 4 weeks. In contrast, baboons that received convalescent IgG maintained normal WBC counts and were asymptomatic. However, despite remaining asymptomatic, their airways were colonized for 4-6 weeks with B. pertussis. All animals developed IgG and IgA anti-pertussis antibody responses. Interestingly, the clearance of B. pertussis from airways coincided with the emergence of a serum anti-pertussis IgA response. These studies demonstrate that passive administration of pertussis-specific IgG from previously infected animals can prevent clinical disease but does not affect prolonged airway colonization with B. pertussis. This outcome is similar to that observed following acellular pertussis vaccination. Understanding immune mechanisms—other than IgG—that are capable of preventing airway colonization with B. pertussis will be critical for developing more effective vaccines to prevent whooping cough.
dc.formatyoutube
dc.language.isoen_US
dc.rightsCopyright the Author(s)
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/
dc.subjectwhooping cough
dc.subjectbordetella pertussis
dc.subjectimmune mechanisms
dc.subjectBacterial Infections and Mycoses
dc.subjectImmunoprophylaxis and Therapy
dc.subjectRespiratory Tract Diseases
dc.titleImmune features that afford protection from clinical disease versus sterilizing immunity to Bordetella pertussis infection in a nonhuman primate model of whooping cough
dc.typePoster Abstract
dc.identifier.legacyfulltexthttps://escholarship.umassmed.edu/cgi/viewcontent.cgi?article=1435&amp;context=cts_retreat&amp;unstamped=1
dc.identifier.legacycoverpagehttps://escholarship.umassmed.edu/cts_retreat/2016/posters/70
dc.identifier.contextkey8831425
refterms.dateFOA2022-08-23T15:47:58Z
html.description.abstract<p>The respiratory bacterial infection caused by Bordetella pertussis (whooping cough) is the only vaccine-preventable disease whose incidence has been increasing over the last 3 decades. To better understand the resurgence of this infection, a baboon animal model of pertussis infection has been developed. Naïve baboons that recover from experimental pertussis infection are resistant both to clinical disease and to airway colonization when re-challenged. In contrast, animals vaccinated with acellular pertussis vaccine and experimentally challenged do not develop disease, but airways remain colonized for 4-6 weeks. We explored the possibility that the IgG antibody response to pertussis infection is qualitatively different from antibodies induced by acellular pertussis vaccination.</p> <p>IgG was purified from pertussis-convalescent baboons shown to be resistant to pertussis disease and airway colonization. Purified IgG contained high titers to pertussis toxin, pertactin, and filamentous hemagglutinin. This pertussis-immune IgG or control IgG was passively transferred to naïve, juvenile baboons before experimental airway pertussis inoculation. The control animal that received normal IgG developed a typical symptomatic infection including leukocytosis, cough and airway colonization for 4 weeks. In contrast, baboons that received convalescent IgG maintained normal WBC counts and were asymptomatic. However, despite remaining asymptomatic, their airways were colonized for 4-6 weeks with B. pertussis. All animals developed IgG and IgA anti-pertussis antibody responses. Interestingly, the clearance of B. pertussis from airways coincided with the emergence of a serum anti-pertussis IgA response.</p> <p>These studies demonstrate that passive administration of pertussis-specific IgG from previously infected animals can prevent clinical disease but does not affect prolonged airway colonization with B. pertussis. This outcome is similar to that observed following acellular pertussis vaccination. Understanding immune mechanisms—other than IgG—that are capable of preventing airway colonization with B. pertussis will be critical for developing more effective vaccines to prevent whooping cough.</p>
dc.identifier.submissionpathcts_retreat/2016/posters/70


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