CRPV Genomes with Synonymous Codon Optimizations Show Growth and Immunity Differences
Author Information
Author(s): Nancy M. Cladel, Hu Jiafen, Balogh Karla K., Christensen Neil D.
Primary Institution: Pennsylvania State University College of Medicine
Hypothesis
We hypothesized that codon 'optimization' of the E7 gene in the context of the CRPV genome would result in increased protein production and thus enhanced immunogenicity.
Conclusion
The study found that codon changes in the E7 oncogene of CRPV can significantly affect growth rates and immune responses.
Supporting Evidence
- Immunization with wild type E7 DNA yielded significant protection from subsequent challenge by both wild type and codon-modified genomes.
- The reduction in growth was most dramatic with the genome containing the greatest number of synonymous codon changes.
- All genomes containing E7 optimizations were tested in rabbits and were functional.
Takeaway
The researchers changed some letters in a virus's recipe to see if it would grow differently and help the body fight it better, and they found that it did.
Methodology
The study involved creating codon-modified E7 genes and testing their effects on protein production and immune response in rabbits.
Limitations
The study did not definitively prove that increased protein production occurred in vivo, as quantitation of E7 content in papillomas was challenging.
Participant Demographics
New Zealand White (NZW) outbred rabbits were used in the study.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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