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Master's Dissertation
DOI
https://doi.org/10.11606/D.87.2009.tde-28042009-111641
Document
Author
Full name
Ana Fabíola Rollo de Oliveira Prestes
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2009
Supervisor
Committee
Dias, Waldely de Oliveira (President)
Franco, Marcelo de
Fukasawa, Lucila Okuyama
Title in Portuguese
Avaliação de adjuvantes em novas formulações de vacina tríplice bacteriana.
Keywords in Portuguese
Adjuvantes imunológicos
Alumínio
Coqueluche
Lipopolissacarídeo
Vacinas
Vitamina A
Abstract in Portuguese
As vacinas pertussis celulares apresentam certa reatogenicidade e as acelulares, menos reatogênicas, têm seu uso restrito, devido a seu alto custo. O Instituto Butantan desenvolveu uma vacina pertussis celular (Plow), com baixo teor de lipopolissacarídeo e outra acelular (Pa), por metodologia simples e econômica. Essas preparações, combinadas aos toxóides diftérico e tetânico (DTPlow e DTPa, respectivamente), foram comparadas à DTP tradicional, com diferentes adjuvantes: vitamina A, surfactante pulmonar, BCG, monofosforil lipídeo A (MPL) e Al(OH)3. A resposta humoral em camundongos foi semelhante para as diferentes formulações e independente do adjuvante utilizado. As vacinas induziram níveis equilibrados de IgG1/IgG2a anti-pertussis e a DTPlow mostrou-se menos reatogênica, induzindo níveis significativamente menores de IL-6 sérica. A adição de MPL sugeriu tendência de proteção contra a colonização nasotraqueal no grupo imunizado com DTPa e levou à indução de IFN-g nos grupos imunizados com DTP e DTPa, sugerindo possível atividade imunomodulatória para Th1.
Title in English
Evaluation of adjuvants in new triple bacterial vaccine formulation.
Keywords in English
Aluminium
Immunological adjuvants
Lipopolysaccharide
Vaccines
Vitamin A
Whooping cough
Abstract in English
The whole cell pertussis vaccines present some reactogenicity and the acellular, less reactogenic, have prohibitive use due to its high cost. Instituto Butantan developed a less reactogenic whole cell pertussis vaccine (Plow), with low lipopolysaccharide content and an acellular vaccine (Pa), by simple and economic methodology. These preparations, combined to diphtheria and tetanus toxoids (DTPlow and DTPa, respectively), were compared with the traditional DTP, with different adjuvants: vitamin A, pulmonary surfactant, BCG, monophosphoryl lipid A (MPL) and Al(OH)3. The humoral immune response induced in mice by the different vaccine formulations, was similar and independent of the adjuvant used. The vaccines induced balanced levels of IgG1/IgG2a anti-pertussis and DTPlow showed to be less rectogenic, inducing lower levels of serum IL-6. The use of MPL suggested to induce higher protection against nasotracheal colonization in DTPa group and induced IFN-g in the DTP and DTPa groups, suggesting a possible immunemodulatory activity for Th1.
 
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Publishing Date
2009-05-05
 
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