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Research Paper
Association between Immunogenicity and Adsorption of a Recombinant Streptococcus pneumoniae Vaccine Antigen by an Aluminum Adjuvant
Philip M. Levesque, Kimberly Foster and Uditha de Alwis
volume 2 | issue 2
march/april 2006Pages: 74 - 77
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The impact on immunogenicity of the degree of adsorption of three Streptococcus pneumoniae (Sp) vaccine antigens to aluminum adjuvants was studied. The three antigens evaluated (Sp1, Sp2 and Sp3) were highly adsorbed by aluminum hydroxide adjuvant, but not adsorbed by aluminum phosphate adjuvant. All of the Sp antigens adjuvanted with aluminum hydroxide elicited higher antibody responses in mice than formulations prepared with aluminum phosphate or non-adjuvanted antigen. Varying the percent aluminum-bound Sp antigen in the formulated vaccine affected the observed antibody responses. These observations suggest that the antibody response observed for Sp antigens in this study is stimulated by a depot effect of the antigen bound to an aluminum adjuvant.
We now provide open access to journal articles published online for one year or more. This article may be downloaded at the following link:
Download PDF If the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.