PMID: 8957709Jan 1, 1996Paper

Oral immunization of rabbits against Pasteurella multocida with an alginate microsphere delivery system

Journal of Biomaterials Science. Polymer Edition
M A SuckowK Park

Abstract

Oral delivery of microencapsulated antigens is a potential means to vaccinate rabbits against Pasteurella multocida, a common bacterial pathogen. Groups of five rabbits were dosed orally on days 0, 7, and 14 with alginate microspheres prepared to contain no added protein, 5 mg of a potassium thiocyanate extract of P. multocida (PTE), or 5 mg of PTE with 200 micrograms of cholera toxin (CT). In addition, groups were dosed orally with 5 mg of soluble PTE with or without 200 micrograms CT, intranasally (IN) with 1 mg of soluble PTE, or with saline. Serum and nasal lavage samples collected prior to initial immunization and 10, 16, and 21 days later were assayed by ELISA for anti-PTE IgG and IgA. Strong nasal lavage IgA and serum IgG activities were found in samples from rabbits immunized with PTE IN or orally when incorporated into microspheres. Addition of CT did not significantly enhance either response. To examine the development of protective immunity, groups were similarly immunized and challenge-exposed IN on day 16 with 10(6) CFU of P. multocida. One week later, rabbits were euthanized, and specimens from the lungs, nasopharynx, liver, and inner ear were cultured for P. multocida. Less severe infections of the lung and nasop...Continue Reading

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Citations

Aug 23, 2001·Journal of Immunological Methods·V GerdtsP J Griebel
Jun 6, 2000·Advanced Drug Delivery Reviews·T L Bowersock, S Martin
Dec 4, 2013·Vaccine·Tarek A AhmadLaila H El-Sayed
Apr 20, 2017·Avian Pathology : Journal of the W.V.P.A·Thanya VarinrakNattawooti Sthitmatee
Feb 19, 2000·Journal of Biomaterials Science. Polymer Edition·M A SuckowT L Bowersock
Jan 23, 2010·Journal of Biosciences·Tarala D Nandedkar
Nov 10, 2005·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·N ShanmugasundaramMary Babu
Jun 18, 2002·Pharmaceutical Development and Technology·Wei WangRajiv Nayar

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