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Prospects of Topoisomerase Inhibitors as Promising Anti-Cancer Agents

open access: yesPharmaceuticals, 2023
Topoisomerases are very important enzymes that regulate DNA topology and are vital for biological actions like DNA replication, transcription, and repair. The emergence and spread of cancer has been intimately associated with topoisomerase dysregulation.
Prasanna Anjaneyulu Yakkala   +3 more
doaj   +4 more sources

Topoisomerase I Inhibitors [PDF]

open access: yesOncologist, 1997
The helical structure of DNA was proposed in 1953 by Watson and Crick (1). Twelve years later, Vinograd and collaborators (2–4) found that the helix axis can also be coiled in circular DNA. This structure was called supercoiling. This finding was extended to linear DNA by Pettijohn and others (5–8).
Mark J Ratain, Ratain Mark J
exaly   +5 more sources

Enhanced Stability and Bioactivity of Natural Anticancer Topoisomerase I Inhibitors through Cyclodextrin Complexation [PDF]

open access: yesPharmaceutics, 2021
The use of cyclodextrins as drug nano-carrier systems for drug delivery is gaining importance in the pharmaceutical industry due to the interesting pharmacokinetic properties of the resulting inclusion complexes.
Víctor González-Ruiz   +9 more
doaj   +2 more sources

Topoisomerase inhibitors in cervical cancer: mechanistic insights and therapeutic strategies [PDF]

open access: yesMolecular Medicine
Cervical cancer represents a critical global health burden, particularly among women in countries with limited healthcare infrastructure, where it accounts for a substantial proportion of cancer-related morbidity and mortality.
Yashaswini Reddy   +6 more
doaj   +2 more sources

Discovery of DNA Topoisomerase I Inhibitors with Low-Cytotoxicity Based on Virtual Screening from Natural Products [PDF]

open access: yesMarine Drugs, 2017
Currently, DNA topoisomerase I (Topo I) inhibitors constitute a family of antitumor agents with demonstrated clinical effects on human malignancies. However, the clinical uses of these agents have been greatly limited due to their severe toxic effects ...
Lan-Ting Xin   +10 more
doaj   +2 more sources

Discovery of potent bisindole-based pyrazolopyridine derivatives as topoisomerase inhibitors: DNA damage induction and synergistic antileukemic activity [PDF]

open access: yesFrontiers in Pharmacology
IntroductionThe development of novel anticancer agents targeting DNA replication and repair mechanisms remains a priority in leukemia therapy. In this study, newly synthesized derivatives incorporating bis-indole and pyrazolo[3,4-b]pyridine scaffolds ...
Wagdy M. Eldehna   +12 more
doaj   +2 more sources

Encapsulation and Enhanced Delivery of Topoisomerase I Inhibitors in Functionalized Carbon Nanotubes [PDF]

open access: yesACS Omega, 2018
Sieun Chae   +10 more
doaj   +2 more sources

Inhibition of Zn(II) binding type IA topoisomerases by organomercury compounds and Hg(II). [PDF]

open access: yesPLoS ONE, 2015
Type IA topoisomerase activities are essential for resolving DNA topological barriers via an enzyme-mediated transient single strand DNA break. Accumulation of topoisomerase DNA cleavage product can lead to cell death or genomic rearrangement.
Bokun Cheng   +4 more
doaj   +1 more source

Topoisomerase II as a Novel Antiviral Target against Panarenaviral Diseases

open access: yesViruses, 2022
Although many arenaviruses cause severe diseases with high fatality rates each year, treatment options are limited to off-label use of ribavirin, and a Food and Drug Administration (FDA)-approved vaccine is not available.
Tosin Oladipo Afowowe   +4 more
doaj   +1 more source

The chemotherapeutic CX-5461 primarily targets TOP2B and exhibits selective activity in high-risk neuroblastoma

open access: yesNature Communications, 2021
CX-5461 recently progressed through phase I clinical trial as a first-inhuman inhibitor of RNA-POL I. Here, the authors demonstrate that CX-5461 synergizes with topoisomerase I inhibitors to inhibit neuroblastoma cells and that its primary target in this
Min Pan   +29 more
doaj   +1 more source

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