Home Mycoplasmas including CBPP/CCPP [DNA/RNA vaccines] DNA/RNA vaccines
Mycoplasmas including CBPP/CCPP roadmap:
Vaccines

Research roadmap for contagious bovine pleuropneumonia (CBPP) vaccine development

Download CBPP vaccine development roadmap final

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DNA/RNA vaccines

Dependencies

Next steps

DNA/RNA vaccines

Research Question

  1. Assess if DNA/RNA platform technologies can be used to develop safer and more efficacious vaccines than current LAVs.

Research Gaps and Challenges

  1. Lack of in vitro assays to guide immunogenicity and efficacy testing.
  2. DNA/RNA based antigen delivery systems have not been optimized for use in cattle.
  3. Regulatory restrictions may limit use of nucleic acid-based vaccines.
  4. Cost could limit the use of these technologies.

Solution Routes

  1. Assess DNA and RNA (mRNA and sa-RNA) formulations, route and dose of immunization with a control antigen in small-scale immunogenicity studies in target species.
  2. Assess ability to meet minimal and desired TPPs.
  3. Assess ability to scale-up and manufacture.

Dependencies

  1. Standardize cattle breed specific laboratory challenge models that reproduce CBPP caused by natural infection or are acceptable surrogate models.
  2. Need optimized methods for antigen delivery via these platforms to prime antibody and T-cell responses.

State Of the Art

  1. Experimental vaccine antigens have been identified.