How LPS Stimulates Chicken Lysozyme Gene Activation
Author Information
Author(s): Lefevre Pascal, Witham James, Lacroix Claire E., Cockerill Peter N., Bonifer Constanze
Primary Institution: University of Leeds
Hypothesis
The study investigates the mechanism by which LPS induces transcriptional activation of the chicken lysozyme gene.
Conclusion
LPS stimulation leads to the eviction of the CTCF protein from the lysozyme gene locus, allowing for gene activation through chromatin remodeling.
Supporting Evidence
- LPS treatment causes extensive chromatin modifications within the lysozyme locus.
- CTCF eviction is specific to the lysozyme gene and does not occur at other CTCF target sites.
- LINoCR, a noncoding RNA, is transcribed during LPS stimulation and correlates with lysozyme gene activation.
Takeaway
When bacteria trigger inflammation, a special protein called CTCF gets pushed away from a gene, helping that gene to turn on and make more of a protein called lysozyme.
Methodology
The study used chromatin immunoprecipitation (ChIP) assays, RNA analysis, and nucleosome mapping to investigate the effects of LPS on the chicken lysozyme gene.
Digital Object Identifier (DOI)
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