Gene Expression Changes in Sheep After Infection with a Nematode
Author Information
Author(s): Pamela A Knight, Susan E Griffith, Alan D Pemberton, Judith M Pate, Lauren Guarneri, Katherine Anderson, Richard T Talbot, Sarah Smith, David Waddington, Mark Fell, Alan L Archibald, Stewart TG Burgess, David W Smith, Hugh RP Miller, Ivan W Morrison
Primary Institution: The Roslin Institute and R(D)SVS, University of Edinburgh
Hypothesis
What are the gene expression responses in the ovine abomasal mucosa to infection with the gastric nematode Teladorsagia circumcincta?
Conclusion
Infection with Teladorsagia circumcincta leads to significant changes in gene expression related to immune responses in sheep.
Supporting Evidence
- Immune animals showed significant increases in transcripts associated with cytotoxicity.
- Gene expression profiling revealed distinct immune responses in previously infected sheep.
- Changes in gene expression may reflect roles in anti-parasitic effects and tissue repair.
Takeaway
When sheep get infected with a certain worm, their bodies change how they express certain genes to fight it off.
Methodology
Gene expression profiling was conducted using ovine cDNA microarrays on samples collected pre- and post-challenge from sheep with different immune statuses.
Potential Biases
Potential biases may arise from the experimental model and the specific conditions under which the trials were conducted.
Limitations
The study may not fully capture all molecular changes due to the complexity of host-parasite interactions.
Participant Demographics
Yearling sheep, both previously infected (immune) and worm-naïve (naive).
Statistical Information
P-Value
≤0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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