Histone Lysine Demethylase Inhibitors

Ashwini Jambhekar1, Jamie N Anastas1,2, Yang Shi1,2

  • 1Division of Newborn Medicine and Epigenetics Program, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts 02115.

Summary

Histone demethylase inhibitors show promise as cancer therapeutics. Advances in drug design are improving their specificity and efficacy, with several compounds in clinical trials for various cancers.

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Histone Modification02:32

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
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Histone Modification02:32

Histone Modification

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The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
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Heterochromatin02:38

Heterochromatin

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