The AAPS Journal

, Volume 16, Issue 5, pp 975–985

Development of a Poly (lactic-co-glycolic acid) Particle Vaccine to Protect Against House Dust Mite Induced Allergy

  • Vijaya B. Joshi
  • Andrea Adamcakova-Dodd
  • Xuefang Jing
  • Amaraporn Wongrakpanich
  • Katherine N. Gibson-Corley
  • Peter S. Thorne
  • Aliasger K. Salem
Research Article Theme: Nanoparticles in Vaccine Delivery

DOI: 10.1208/s12248-014-9624-5

Cite this article as:
Joshi, V.B., Adamcakova-Dodd, A., Jing, X. et al. AAPS J (2014) 16: 975. doi:10.1208/s12248-014-9624-5
Part of the following topical collections:
  1. Theme: Nanoparticles in Vaccine Delivery

Abstract

Poly(lactic-co-glycolic acid) (PLGA) particles carrying antigen and adjuvant is a promising vaccine system which has been shown to stimulate systemic antigen-specific immune responses. In this study, we investigated the relationship of (i) the sizes of PLGA particle and (ii) the presence of cytosine-phosphate-guanine motifs (CpG), with the extent and type of immune response stimulated against Dermatophagoides pteronyssinus-2 (Der p2) antigen. Different sizes of PLGA particles encapsulating CpG were prepared using a double emulsion solvent evaporation method. Mice were vaccinated with Der p2 and different sizes of empty or CpG-loaded PLGA particles. Vaccinated mice were exposed to daily intranasal instillation of Der p2 for 10 days followed by euthanization to estimate leukocyte accumulation in bronchoalveolar lavage (BAL) fluids, antibody profiles, and airway hyperresponsiveness. PLGA particles showed a size-dependent decrease in the proportion of eosinophils found in BAL fluids. Mice vaccinated with the Der p2 coated on 9-μm-sized empty PLGA particles showed increased levels of IgE and IgG1 antibodies as well as increased airway hyperresponsiveness. All sizes of PLGA particles encapsulating CpG prevented airway hyperresponsiveness after Der p2 exposures. Inflammatory responses to Der p2 exposure were significantly reduced when smaller PLGA particles were used for vaccination. In addition, encapsulating CpG in PLGA particles increased IgG2a secretion. This study shows that the size of PLGA particles used for vaccination plays a major role in the prevention of house dust mite-induced allergy and that incorporation of CpG into the PLGA particles preferentially develops a Th1-type immune response.

Keywords

allergy CpG Der p2 house dust mite PLGA vaccine 

Copyright information

© American Association of Pharmaceutical Scientists 2014

Authors and Affiliations

  • Vijaya B. Joshi
    • 1
  • Andrea Adamcakova-Dodd
    • 2
  • Xuefang Jing
    • 2
  • Amaraporn Wongrakpanich
    • 1
  • Katherine N. Gibson-Corley
    • 3
  • Peter S. Thorne
    • 2
  • Aliasger K. Salem
    • 1
  1. 1.Division of Pharmaceutics and Translational Therapeutics, College of PharmacyUniversity of IowaIowa CityUSA
  2. 2.Department of Occupational and Environmental Health, College of Public HealthUniversity of IowaIowa CityUSA
  3. 3.Department of Pathology, Carver College of MedicineUniversity of IowaIowa CityUSA

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