Targeted Transcriptome Analysis of Beef Cattle Persistently Infected with Bovine Viral Diarrhea Virus
2024

Understanding the Immune Response in Cattle Infected with BVDV

Sample size: 12 publication 10 minutes Evidence: moderate

Author Information

Author(s): Adkins Morgan, Moisa Sonia, Beever Jon, Lear Andrea

Primary Institution: University of Tennessee, College of Veterinary Medicine

Hypothesis

There will be significant gene expression changes and altered signaling pathways of the persistently infected animals.

Conclusion

The study provides novel insights into the immune system of adult cattle persistently infected with BVDV, indicating ongoing immune activation despite an inability to clear the virus.

Supporting Evidence

  • Analysis revealed 29 differentially expressed genes between groups.
  • Transcriptome changes indicated chronic upregulation of interferon-gamma (IFNG).
  • Fourteen significant KEGG pathways were identified between persistently infected and control groups.

Takeaway

This study looked at how a virus affects the immune system of cows that were infected before they were born, showing that the cows' bodies are still trying to fight the virus even years later.

Methodology

Peripheral blood mononuclear cells were collected from persistently infected beef cattle and controls for targeted RNA sequencing analysis using 54 immune-related genes.

Potential Biases

The convenience sampling may not represent the broader population of persistently infected cattle.

Limitations

The study population was heterogeneous in breed, age, and sex, which may introduce sample selection bias.

Participant Demographics

Six persistently infected cattle with a mean age of 28.77 months and six control animals with a mean age of 49.38 months.

Statistical Information

P-Value

FDR < 0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/genes15121500

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