Related Experiment Video
Updated: May 25, 2026

Assays for Validating Histone Acetyltransferase Inhibitors
Published on: August 6, 2020
Selective histone deacetylase inhibitors
Huili Pan1, Jiangying Cao, Wenfang Xu
1Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, Ji'nan, Shandong, China.
Abstract:
Histone deacetylases (HDACs) are a family of conserved metalloproteases which play a key role in the development of cancer. They can be divided into 18 subtypes according to their structural diversity. Histone deacetylase inhibitors are considered as potential anti-cancer agents and a lot of pan-HDAC inhibitors have entered clinical trials. Selective HDAC inhibitors targeting only one member or one class subtype are less exploited at present and regarded less toxic as well as more tolerable than pan-HDAC inhibitors. Certain structural modifications or new moieties may help to acquire isoform selectivity. In this review, we will focus on each member of HDACs and selective HDAC inhibitors as well as the relationship between structure and selectivity.
Insights
Histone deacetylase inhibitors (HDACi) show anti-cancer potential. This review explores selective HDAC inhibitors, offering a less toxic alternative to pan-HDAC inhibitors by targeting specific subtypes.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Histone deacetylases (HDACs) are crucial metalloproteases implicated in cancer development.
- HDACs comprise 18 subtypes, each with distinct structural characteristics.
- Existing pan-HDAC inhibitors have advanced to clinical trials for cancer therapy.
Purpose of the Study:
- To review individual HDAC members and their roles in cancer.
- To explore the potential of selective HDAC inhibitors as targeted anti-cancer agents.
- To elucidate the structure-selectivity relationship for developing novel HDAC inhibitors.
Main Methods:
- Literature review of HDACs and their inhibitors.
- Analysis of structural diversity among HDAC subtypes.
- Examination of structure-activity relationships for isoform selectivity.
Main Results:
- Pan-HDAC inhibitors are widely studied but associated with toxicity.
- Selective HDAC inhibitors present a promising avenue for reduced toxicity and improved tolerability.
- Structural modifications are key to achieving isoform-specific inhibition.
Conclusions:
- Targeting specific HDAC subtypes offers a more precise and potentially safer anti-cancer strategy.
- Further research into structure-selectivity is essential for developing effective and well-tolerated HDAC inhibitors.
- Selective HDAC inhibitors represent a significant advancement in targeted cancer therapy.
Related Concept Videos
Acid Suppressive Drugs for Peptic Ulcer Disease: Histamine H2-Receptor Antagonists
Inhibition of Cdk Activity
Spreading of Chromatin Modifications
Writers
The writer is an enzyme that can...
Histone Modification
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Histone Modification
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
Heterochromatin
Constitutive heterochromatin: It is a highly compact region of chromatin that is mostly concentrated in the centromere and telomere. Unlike euchromatin, the amino acid at 9th...

