Genome-Wide Analysis of Abnormal H3K9 Acetylation in Cloned Mice
Author Information
Author(s): Suzuki Takahiro, Kondo Shinji, Wakayama Teruhiko, Cizdziel Paul E., Hayashizaki Yoshihide
Primary Institution: RIKEN Genomic Sciences Center
Hypothesis
Hyper- and hypo-acetylation in the promoter region leads to abnormal gene expression in a cloned mouse.
Conclusion
The study suggests that aberrant acetylation of histones (H3K9Ac) correlates with gene expression and may contribute to the abnormalities observed in cloned mice.
Supporting Evidence
- Cloned mice often show abnormal phenotypes, including obesity.
- 4720 regions of chromosomal DNA showed differences in H3K9Ac.
- Hyper-acetylated genes were linked to increased body mass.
- Statistical analysis indicated significant differences in acetylation patterns.
Takeaway
Scientists studied cloned mice to see how changes in a specific chemical mark on DNA (H3K9Ac) might cause health problems. They found that these changes could be linked to the mice being overweight.
Methodology
The study used whole genome tiling arrays and quantitative PCR to analyze H3K9Ac levels in cloned mice compared to their parental counterparts.
Potential Biases
Potential bias due to the limited number of cloned mouse pairs analyzed.
Limitations
The study focused only on liver tissue and may not represent other tissues or developmental stages.
Participant Demographics
Cloned mice derived from BDF1 oocytes and BD129F1 cumulus cells.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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