Protective immunity in rats by intranasal immunization with Streptococcus mutans glucan-binding protein D encapsulated into chitosan-coated poly(lactic-co-glycolic acid) microspheres

Biotechnol Lett. 2006 Aug;28(16):1299-304. doi: 10.1007/s10529-006-9086-7. Epub 2006 Jun 28.

Abstract

Recombinant Streptococcus mutans glucan-binding protein D (rGbpD) was incorporated into poly(lactic-co-glycolic acid) (PLGA) microspheres which then were surface-coated with chitosan. The microspheres, with a mean diameter of ca. 1.8 microm, were intranasally administered in rats. There were elevated salivary immunoglobulin A and serum immunoglobulin G antibody responses to rGbpD, as well as lower molar caries scores in immunized animals as compared to sham immunized ones. The chitosan-coated PLGA microspheres are thus potentially useful for antigen delivery in dental caries vaccination.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Intranasal
  • Animals
  • Carrier Proteins / chemistry*
  • Chitosan / chemistry*
  • Enzyme-Linked Immunosorbent Assay
  • Kinetics
  • Lactic Acid / chemistry*
  • Lectins / chemistry*
  • Male
  • Microspheres*
  • Polyglycolic Acid / chemistry*
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Polymers / chemistry*
  • Rats
  • Rats, Sprague-Dawley
  • Saliva / metabolism
  • Streptococcus mutans / immunology*
  • Streptococcus mutans / metabolism*
  • Surface Properties

Substances

  • Carrier Proteins
  • Lectins
  • Polymers
  • glucan-binding proteins
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Polyglycolic Acid
  • Lactic Acid
  • Chitosan