Results 71 to 80 of about 67,641 (348)

Anti-topoisomerase drugs as potent inducers of chromosomal aberrations

open access: yesGenetics and Molecular Biology, 2000
DNA topoisomerases catalyze topological changes in DNA that are essential for normal cell cycle progression and therefore they are a preferential target for the development of anticancer drugs.
Loredana Bassi, Fabrizio Palitti
doaj   +1 more source

Fork rotation and DNA precatenation are restricted during DNA replication to prevent chromosomal instability [PDF]

open access: yes, 2015
Faithful genome duplication and inheritance require the complete resolution of all intertwines within the parental DNA duplex. This is achieved by topoisomerase action ahead of the replication fork or by fork rotation and subsequent resolution of the DNA
Anna L. Chambers   +5 more
core   +3 more sources

Development of a Personalized Visualization and Analysis Tool to Improve Clinical Care in Complex Multisystem Diseases With Application to Scleroderma

open access: yesArthritis Care &Research, EarlyView.
Objective In complex diseases, it is challenging to assess a patient's disease state, trajectory, treatment exposures, and risk of multiple outcomes simultaneously, efficiently, and at the point of care. Methods We developed an interactive patient‐level data visualization and analysis tool (VAT) that automates illustration of the trajectory of a ...
Ji Soo Kim   +18 more
wiley   +1 more source

Cryo-EM structures of African swine fever virus topoisomerase

open access: yesmBio, 2023
Type II topoisomerases ubiquitously exist in cellular organisms, where they play an essential role in resolving the topological problems of DNA. The viral type II topoisomerase encoded by the African swine fever virus (ASFV) is critical for viral ...
Yan Zhao   +5 more
doaj   +1 more source

A nucleotide resolution map of Top2-linked DNA breaks in the yeast and human genome [PDF]

open access: yes, 2019
DNA topoisomerases are required to resolve DNA topological stress. Despite this essential role, abortive topoisomerase activity generates aberrant protein-linked DNA breaks, jeopardising genome stability.
Allison, Rachal M   +5 more
core   +1 more source

A 3D Bioprinted Spheroid‐Laden dECM‐Enriched Osteosarcoma Model for Enhanced Drug Testing and Therapeutic Discovery

open access: yesAdvanced Healthcare Materials, EarlyView.
A 3D biomimetic OS model was developed by bioprinting an OS‐cell‐derived dECM‐enriched bioink with OS spheroids incorporated. The model showed upregulation of known OS prognostic markers and increased resistance to doxorubicin, compared to 2D cultures and scaffold‐free spheroids, making this a more clinically relevant platform for drug discovery ...
Margarida F. Domingues   +6 more
wiley   +1 more source

In vitro investigating of anticancer activity of new 7-MEOTA-tacrine heterodimers

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2019
A combination of biochemical, biophysical and biological techniques was used to study calf thymus DNA interaction with newly synthesized 7-MEOTA-tacrine thiourea 12–17 and urea heterodimers 18–22, and to measure interference with type I and II ...
Jana Janockova   +16 more
doaj   +1 more source

Natural Compounds as Anticancer Agents Targeting DNA Topoisomerases

open access: yesCurrent Genomics, 2016
DNA topoisomerases are important cellular enzymes found in almost all types of living cells (eukaryotic and prokaryotic). These enzymes are essential for various DNA metabolic processes e.g.
C. Jain, H. Majumder, S. Roychoudhury
semanticscholar   +1 more source

Peptomer Linkers Enable Kinetic Control over Co‐Delivery of Multiple Chemotherapeutics

open access: yesAdvanced Healthcare Materials, EarlyView.
A key challenge in combinatorial chemotherapeutic drug delivery is independent control over release kinetics, especially with drugs of similar size and structure. Here, peptoid substitutions to proteolytically degradable peptides enabled the design of fast and slow‐releasing drug linkers.
Carolyn M. Watkins   +3 more
wiley   +1 more source

DNA-Stimulated Liquid-Liquid phase separation by eukaryotic topoisomerase ii modulates catalytic function

open access: yeseLife, 2022
Type II topoisomerases modulate chromosome supercoiling, condensation, and catenation by moving one double-stranded DNA segment through a transient break in a second duplex.
Joshua Jeong   +4 more
doaj   +1 more source

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