摘要
Three-month-old Alzheimer＇s disease model transgenic mice were immunized with Aβ1-42, Plp-Adenovirus [Ad]-X-CMV-（Aβ3-10）lo-CpG [AdCpG-（Aβ3-10）1] or AdCpG virus fluid via na- sal mucosal inhalation, respectively. ELISA analysis of serum showed Aβ42 antibody titers were significantly increased in mice immunized with Aβ1-42 and AdCpG-（Aβ3-10）10. Concanavalin A and AdCpG-（Aβ3-10）10 stimulation significantly increased the number of proliferating spleen cells cultured from AdCpG（Aβ3-10）Io and Aβ42 groups compared with the control group. In the AdCp- G（Aβ3-10）10 group, levels of interleukin （IL）-4 and IL-10 were increased, while those of IL-2 and interferon-y were decreased. In the A[342 group, levels of IL-4, IL-10, IL-2 and interferon-y were all increased. Experimental findings indicate that AdCpG-（Aβ3-10）10 vaccine can produce strong T helper 2 （Th2） humoral immune responses in addition to the production of Aβ42 antibody. The cellular immunologic response was weak and avoided Aβ1-42-mediated cytotoxicity.
Three-month-old Alzheimer＇s disease model transgenic mice were immunized with Aβ1-42, Plp-Adenovirus [Ad]-X-CMV-（Aβ3-10）lo-CpG [AdCpG-（Aβ3-10）1] or AdCpG virus fluid via na- sal mucosal inhalation, respectively. ELISA analysis of serum showed Aβ42 antibody titers were significantly increased in mice immunized with Aβ1-42 and AdCpG-（Aβ3-10）10. Concanavalin A and AdCpG-（Aβ3-10）10 stimulation significantly increased the number of proliferating spleen cells cultured from AdCpG（Aβ3-10）Io and Aβ42 groups compared with the control group. In the AdCp- G（Aβ3-10）10 group, levels of interleukin （IL）-4 and IL-10 were increased, while those of IL-2 and interferon-y were decreased. In the A[342 group, levels of IL-4, IL-10, IL-2 and interferon-y were all increased. Experimental findings indicate that AdCpG-（Aβ3-10）10 vaccine can produce strong T helper 2 （Th2） humoral immune responses in addition to the production of Aβ42 antibody. The cellular immunologic response was weak and avoided Aβ1-42-mediated cytotoxicity.
基金
supported by the National Natural Science Foundation of China,No.30471927
