Results 71 to 80 of about 67,641 (348)
Anti-topoisomerase drugs as potent inducers of chromosomal aberrations
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]
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
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
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]
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 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
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
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
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
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

