Journal
ONCOGENE
Volume 20, Issue 24, Pages 2988-2990Publisher
SPRINGERNATURE
DOI: 10.1038/sj.onc.1204322
Keywords
cell cycle; acetyltransferase; reacetylase methyltransferase; ATPase; RNA polymerase
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A typical human cell expresses only a few thousand of the more than 30000 genes contained within our chromosomes. The chromosomal infrastructure is essential for gene control, determining both active and repressed states. It is important not only to turn the right genes on but also to turn the right genes off. Histones and chromatin components have key roles in this decision making process. Mistakes ha re severe consequences. If as few as three inappropriate genes are turned off, a normal cell can be converted into a cancer cell. This epigenetic silencing of genes underlies a new approach to cancer therapy. Advances in the biochemistry and genetics of chromatin remodeling reveal that gene inactivation depends on the recruitment of enzymes that control the display of DNA within the chromosome. Mistargeting of these enzymes leads to tumorigenesis, but inhibition of their activity presents a novel approach to therapy.
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