Journal
VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
Volume 107, Issue 3-4, Pages 281-290Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.vetimm.2005.05.004
Keywords
tick; Boophilus microplus; synthetic vaccines; adjuvants; PLGA 50 : 50
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The synthetic anti-Boophilus microplus vaccine SBm7462 derived from the tick intestinal protein, Bm86, induced a protective immune response when emulsified in saponin and used in cattle. Using a mice model, and with the objective of improving the vaccine by continual peptide release, it was encapsulated in PLGA 50:50 microspheres and inoculated in BALB/c mice to assess the immunological response by detection of anti-peptide IgGs. Comparative studies were made with the peptide emulsified in saponin and with another synthetic vaccine, and the microsphere/peptide was characterized for efficiency of encapsulation, in vitro release profile, morphology, size, peptide integrity after encapsulation and stability in different pHs. The findings showed that saponin enhances a better immune response from SBm7462 and that the PLGA 50:50 microspheres are suitable for use with this peptide. (c) 2005 Elsevier B.V. All rights reserved.
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