کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2404542 | 1102982 | 2010 | 11 صفحه PDF | دانلود رایگان |

We previously reported the capacity of the cationic lipid-based formulation, Vaxfectin®, to enhance the immunogenicity and protective efficacy of a low dose plasmid DNA vaccine against Plasmodium yoelii malaria in mice. Here, we have extended this finding to human Plasmodium falciparum genes, evaluating the immune enhancing effect of Vaxfectin® formulation on a mixture, designated CSLAM, of five plasmid DNA vaccines encoding antigens from the sporozoite (PfCSP, PfSSP2/TRAP), intrahepatic (PfLSA1), and erythrocytic (PfAMA1, PfMSP1) life cycle stages of P. falciparum administered at 2, 10 or 50 μg doses. Vaxfectin® formulation enhanced both antibody and cellular immune responses to each component of the multi-antigen vaccine mixture, as assessed by ELISA, IFAT, and IFN-γ ELIspot, respectively. There was no apparent antigenic competition, as indicated by comparison of responses induced in mice immunized with PfCSP vs. CSLAM. These data showing that Vaxfectin® can enhance the immunogenicity of plasmid DNA vaccines administered at low doses per body weight, and in combinations, has important clinical implications for the development of a vaccine against malaria, as well as against other public health threats.
Journal: Vaccine - Volume 28, Issue 17, 9 April 2010, Pages 3055–3065