Citation: Diana Kozlova, Viktoriya Sokolova, Maohua Zhong, Ejuan Zhang, Jingyi Yang, Wei Li, Yi Yang, Jan Buer, Astrid Maria Westendorf, Matthias Epple, Huimin Yan. Calcium phosphate nanoparticles show an effective activation of the innate immune response in vitro and in vivo after functionalization with flagellin .VIROLOGICA SINICA, 2014, 29(1) : 33-39.  http://dx.doi.org/10.1007/s12250-014-3379-0

Calcium phosphate nanoparticles show an effective activation of the innate immune response in vitro and in vivo after functionalization with flagellin

  • Corresponding author: Matthias Epple, matthias.epple@uni-due.de
    Huimin Yan, hmyan@wh.iov.cn
  • Received Date: 17 September 2013
    Accepted Date: 19 November 2013
    Published Date: 26 December 2013
    Available online: 01 February 2014
  • For subunit vaccines, adjuvants play a key role in shaping the magnitude, persistence and form of targeted antigen-specific immune response. Flagellin is a potent immune activator by bridging innate inflammatory responses and adaptive immunity and an adjuvant candidate for clinical application. Calcium phosphate nanoparticles are efficient carriers for different biomolecules like DNA, RNA, peptides and proteins. Flagellin-functionalized calcium phosphate nanoparticles were prepared and their immunostimulatory effect on the innate immune system, i.e. the cytokine production, was studied. They induced the production of the proinflammatory cytokines IL-8 (Caco-2 cells) and IL-1β (bone marrow-derived macrophages; BMDM) in vitro and IL-6 in vivo after intraperitoneal injection in mice. The immunostimulation was more pronounced than with free flagellin.

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    Calcium phosphate nanoparticles show an effective activation of the innate immune response in vitro and in vivo after functionalization with flagellin

      Corresponding author: Matthias Epple, matthias.epple@uni-due.de
      Corresponding author: Huimin Yan, hmyan@wh.iov.cn
    • 1. Institute of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Du isburg-Essen, Essen 45117, Germany
    • 2. Mucosal Immunity Research Group, State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
    • 3. Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, Essen 45147, Germany

    Abstract: For subunit vaccines, adjuvants play a key role in shaping the magnitude, persistence and form of targeted antigen-specific immune response. Flagellin is a potent immune activator by bridging innate inflammatory responses and adaptive immunity and an adjuvant candidate for clinical application. Calcium phosphate nanoparticles are efficient carriers for different biomolecules like DNA, RNA, peptides and proteins. Flagellin-functionalized calcium phosphate nanoparticles were prepared and their immunostimulatory effect on the innate immune system, i.e. the cytokine production, was studied. They induced the production of the proinflammatory cytokines IL-8 (Caco-2 cells) and IL-1β (bone marrow-derived macrophages; BMDM) in vitro and IL-6 in vivo after intraperitoneal injection in mice. The immunostimulation was more pronounced than with free flagellin.