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Purpose To test the hypothesis that particle size influences the magnitude of immune response produced by hepatitis B surface antigen (HBsAg) encapsulated in poly (lactic-co-glycolic acid) (PLGA) microspheres. Methods Microspheres were prepared by a double-emulsion-solvent-evaporation method, and the particles were characterized for size, morphology, porosity and antigen content. Immunogenicity...
Purpose To study the influence of protein aggregation on the immunogenicity of recombinant human interferon beta (rhIFNβ) in wild-type mice and transgenic, immune-tolerant mice, and to evaluate the induction of immunological memory. Methods RhIFNβ-1b and three rhIFNβ-1a preparations with different aggregate levels were injected intraperitoneally in mice 15× during 3 weeks, and the mice were rechallenged...
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