Virus-like particles presenting interleukin-33 molecules

  • Long Q
  • Huang W
  • Yao Y
  • et al.
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Abstract

We sought to develop an IL-33 vaccine and evaluate its efficacy in a mouse model of asthma. The full-length molecules of putative mature IL-33 were inserted into the immunodominant epitope region of hepatitis B core antigen using gene recombination techniques. The expressed chimeric protein presented as virus-like particles (VLPs) under observation using an electron microscopy. To investigate immunization characteristics of the VLPs, mice were immunized by using different doses, adjuvants, and routes. The VLPs induced sustained and high titers of IL-33-specific IgG and IgA even without the use of a conventional adjuvant, and the lowered ratio of IgG1/IgG2a in vaccinated mice indicated a shift from Th2 to Th1-like responses. To assess the vaccine effects on blocking the signaling of IL-33/ST2 pathway, mice receiving 3 vaccinations subjected to intraperitoneal sensitization and intranasal challenge with ovalbumin (OVA). Control animals received carrier or PBS in place of the vaccine. Immunization with the V...

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Long, Q., Huang, W., Yao, Y., Yang, X., Sun, W., Jin, X., … Ma, Y. (2014). Virus-like particles presenting interleukin-33 molecules. Human Vaccines & Immunotherapeutics, 10(8), 2303–2311. https://doi.org/10.4161/hv.29425

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