Effects of 1,3-Butadiene on Mouse Liver Epigenetics
Author Information
Author(s): Koturbash Igor, Scherhag Anne, Sorrentino Jessica, Sexton Kenneth, Bodnar Wanda, Tryndyak Volodymyr, Latendresse John R., Swenberg James A., Beland Frederick A., Pogribny Igor P., Rusyn Ivan
Primary Institution: University of North Carolina–Chapel Hill
Hypothesis
1,3-Butadiene may be epigenotoxic, causing changes in DNA and histone methylation.
Conclusion
Exposure to 1,3-butadiene leads to significant epigenetic alterations in the liver, which may contribute to its carcinogenicity.
Supporting Evidence
- 1,3-butadiene is a known human carcinogen.
- Exposure to 625 ppm of 1,3-butadiene caused glycogen depletion in liver cells.
- Significant changes in gene expression were observed in mice exposed to higher concentrations of 1,3-butadiene.
- Global DNA methylation levels decreased in liver tissues after exposure.
- Histone modifications were altered in response to 1,3-butadiene exposure.
Takeaway
Breathing in a chemical called 1,3-butadiene can change how our genes work in the liver, which might help cause cancer.
Methodology
C57BL/6J male mice were exposed to 1,3-butadiene by inhalation for 2 weeks, and liver tissues were analyzed for toxicity and epigenetic changes.
Limitations
The study was limited to short-term exposure and a specific mouse strain, which may not fully represent human responses.
Participant Demographics
C57BL/6J male mice, 9 weeks old.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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