Co-Regulation of Histone-Modifying Enzymes in Cancer
Author Information
Author(s): Islam Abul B. M. M. K., Richter William F., Jacobs Laura A., Lopez-Bigas Nuria, Benevolenskaya Elizaveta V.
Primary Institution: Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois, United States of America
Hypothesis
It is unclear whether the binding of histone-modifying proteins to genomic regions and the placing of histone modifications efficiently discriminates corresponding genes from the rest of the genes in the human genome.
Conclusion
Changes in coordinated regulation of enzymes executing histone modifications may underlie global epigenetic changes occurring in cancer.
Supporting Evidence
- The analysis revealed correlations in the expression levels of different histone demethylases and methyltransferases.
- The observed gene expression signature was specific to particular normal and cancer cell types.
- Trimethylation at lysine 4 and lysine 27 separated preferentially expressed and underexpressed genes in cancer cells compared to normal cells.
Takeaway
This study looks at how certain proteins that modify DNA can work together in cancer cells, which might help us understand how cancer develops.
Methodology
Gene expression analysis of histone demethylases and histone methyltransferases was performed in normal and tumor tissues.
Limitations
The study primarily focuses on correlations and does not establish direct causation between histone modifications and cancer.
Participant Demographics
The study analyzed gene expression data from various human tissues and cancer cell lines.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website