Enhanced Immune Response after Subcutaneous Injection of Diphtheria Toxoid-Loaded Bioerodible Microspheres

Cho, S; Lee, S; Kang, M; Ye, J; Choi, Y; Hong, SW; Lee, J; Choi, YW

HERO ID

1761556

Reference Type

Journal Article

Year

2009

HERO ID 1761556
In Press No
Year 2009
Title Enhanced Immune Response after Subcutaneous Injection of Diphtheria Toxoid-Loaded Bioerodible Microspheres
Authors Cho, S; Lee, S; Kang, M; Ye, J; Choi, Y; Hong, SW; Lee, J; Choi, YW
Volume 6
Issue 12
Page Numbers 1166-1171
Abstract The feasibility of the enhanced immunization with diphtheria toxoid-loaded bioerodible microspheres was examined by investigating the serum antibody levels and lethal test in vivo. PLGA polymer was selected based on the properties such as degradability, tissue compatibility, and ease of particulate preparation. The double emulsion solvent extraction method was employed for the fabrication of microspheres to control the release of diphtheria toxoid. Dichloromethane or ethyl acetate was applied as an organic phase and poly (vinyl alcohol) as a secondary emulsion stabilizer during fabrication procedure. Diphtheria toxoid can be microencapsulated using PLGA copolymer without a loss of its immunogenicity. The results from the in vivo study with bioerodible microsphere indicated that immunogenic response, expressed as ELISA IgG titers, was significantly higher than the conventional antigen for 8 weeks after single injection. Consequently, these microspheres could provide the controlled release of antigens for developing enhanced vaccine formulations as a parenteral carrier system.
Wosid WOS:000273647200011
Url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884554163&partnerID=40&md5=d39198b33c0eab56bc675802ff160f08
Is Certified Translation No
Dupe Override No
Comments Source: Web of Science WOS:000273647200011 Journal:TISSUE ENGINEERING AND REGENERATIVE MEDICINE 1738-2696
Is Public Yes
Keyword Immunization; Diphtheria toxoid; Microencapsulation; PLGA; Microsphere