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Fluorescent molecular probe-based activity and inhibition monitoring of histone deacetylases

Journal

CHEMICAL COMMUNICATIONS
Volume 57, Issue 85, Pages 11153-11164

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc04034k

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Funding

  1. Science and Engineering Research Board, (SERB), India [EEQ/2019/000325]

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Gene expression regulation involves processes beyond genetic mutations, including histone modification. HDACs play a crucial role in histone deacetylation and are upregulated in many cancers, making research on their activity and inhibition essential for therapeutic success. Fluorescent molecular probes are a preferred method for studying HDACs.
Extensive studies in recent decades have revealed that gene expression regulation is not limited to genetic mutations but also to processes that do not alter the genetic sequence. Post-translational histone modification is one of these processes in addition to DNA or RNA modifications. Histone modifications are essential in controlling histone functions and play a vital role in cellular gene expression. The reversible histone acetylation, regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs), is an example of such modifications. HDACs are involved in the deacetylation of histones and lead to the termination of gene expression. Although this cellular process is essential, upregulation of HDACs is found in numerous cancers. Therefore, research related to the activity and inhibition monitoring of HDACs is necessary to gain profound knowledge of these enzymes and evaluate the success of the therapeutic approach. In this perspective, methodology derived from fluorescent molecular probes is one of the preferable methods. Herein, we describe fluorescent probes developed to target HDACs by considering their activity and inhibition characteristics.

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