Related Experiment Video
Updated: Dec 7, 2025

Simple and Fast Rolling Circle Amplification-Based Detection of Topoisomerase 1 Activity in Crude Biological Samples
Published on: December 2, 2022
DNA topoisomerases as molecular targets for anticancer drugs
Kamila Buzun1, Anna Bielawska1, Krzysztof Bielawski2
1Department of Biotechnology, Medical University of Bialystok, Bialystok, Poland.
Abstract:
The significant role of topoisomerases in the control of DNA chain topology has been confirmed in numerous research conducted worldwide. The prevalence of these enzymes, as well as the key importance of topoisomerase in the proper functioning of cells, have made them the target of many scientific studies conducted all over the world. This article is a comprehensive review of knowledge about topoisomerases and their inhibitors collected over the years. Studies on the structure-activity relationship and molecular docking are one of the key elements driving drug development. In addition to information on molecular targets, this article contains details on the structure-activity relationship of described classes of compounds. Moreover, the work also includes details about the structure of the compounds that drive the mode of action of topoisomerase inhibitors. Finally, selected topoisomerases inhibitors at the stage of clinical trials and their potential application in the chemotherapy of various cancers are described.
Insights
This review covers topoisomerases, crucial enzymes for DNA topology, and their inhibitors. It details structure-activity relationships and potential cancer chemotherapy applications for these drug development targets.
Area of Science:
- Biochemistry
- Molecular Biology
- Pharmacology
Background:
- Topoisomerases are essential enzymes regulating DNA topology and are vital for cellular function.
- Their critical role makes them significant targets for scientific research and drug development.
Purpose of the Study:
- To provide a comprehensive review of topoisomerases and their inhibitors.
- To discuss structure-activity relationships and molecular docking in drug development.
- To highlight topoisomerase inhibitors in clinical trials for cancer chemotherapy.
Main Methods:
- Literature review of existing research on topoisomerases and their inhibitors.
- Analysis of structure-activity relationships (SAR) for various compound classes.
- Examination of molecular docking studies relevant to topoisomerase inhibition.
Main Results:
- Detailed information on molecular targets and the SAR of topoisomerase inhibitors.
- Insights into how compound structures influence the mode of action of inhibitors.
- Identification of selected inhibitors currently in clinical trials for cancer treatment.
Conclusions:
- Topoisomerases are key targets in drug discovery due to their essential cellular roles.
- Understanding SAR and molecular interactions is crucial for developing effective topoisomerase inhibitors.
- Several topoisomerase inhibitors show promise for future cancer chemotherapy applications.
More Related Videos
10:12Author Spotlight: Quantitative Detection of DNA Protein Crosslinks and Their Post-Translational Modifications
Published on: April 21, 2023
06:07Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
Related Concept Videos
DNA Topoisomerases
Types and Mechanism of action
Topoisomerases are divided into two main types. ...
DNA Helicases
Targeted Cancer Therapies
There are several types of targeted therapies against...
Targets for Drug Action: Overview
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
Treatment Resistant Cancers
Drugs that Destabilize Microtubules