Results 91 to 100 of about 1,521,597 (298)

The topoisomerase II inhibitor voreloxin causes cell cycle arrest and apoptosis in myeloid leukemia cells and acts in synergy with cytarabine

open access: yesHaematologica, 2011
Background Topoisomerase II is essential for the maintenance of DNA integrity and the survival of proliferating cells. Topoisomerase II poisons, including etoposide and doxorubicin, inhibit enzyme-mediated DNA ligation causing the accumulation of double ...
Elisabeth J. Walsby   +3 more
doaj   +1 more source

The Molecular Perspective: DNA Topoisomerases [PDF]

open access: yesSTEM CELLS, 2002
Abstract Learning Objectives After completing this course, the reader will be able to: Gain a basic understanding of the structure and function of the DNA topoisomerases and their place as targets for chemotherapy. Access and take the CME test online and receive one
openaire   +3 more sources

Structure of the N-terminal gyrase B fragment in complex with ADP⋅Pi reveals rigid-body motion induced by ATP hydrolysis [PDF]

open access: yes, 2014
Type II DNA topoisomerases are essential enzymes that catalyze topological rearrangement of double-stranded DNA using the free energy generated by ATP hydrolysis.
Stanger, Frédéric V.   +9 more
core   +1 more source

Can DNA Topoisomerases Be Ribonucleases? [PDF]

open access: yesCell, 1997
DNA topoisomerases catalyze changes in the linkage of DNA strands through a concerted mechanism of DNA strand cleavage and ligation reactions (for review, seeWang 1996xWang, J.C. Annu. Rev. Biochem. 1996; 65: 635–692Crossref | PubMedSee all ReferencesWang 1996).
openaire   +2 more sources

Caracterização das DNA topoisomerases II de Trypanosoma rangeli [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biotecnologia, Florianópolis, 2010DNA topoisomerases são enzimas que participam de diversos processos celulares tais como: replicação ...
Stoco, Patrícia Hermes
core  

Cellular Processing Pathways Contribute to the Activation of Etoposide- Induced DNA Damage Responses

open access: yes, 2009
Cytotoxic action (tumor cell killing) and carcinogenic side effect ( therapy-related secondary leukemia) of etoposide are closely related to its ability in stabilizing topoisomerase II cleavable complex (TOP2cc), a unique form of protein- linked DNA ...
FAN, JIA-RONG;PENG, AN-LIN;LO, SHU-CHI;HUANG, TING-HSIANG;LI, TSAI-KUN   +1 more
core   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

open access: yesAngewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

Genome-wide ChIP-seq analysis of human TOP2B occupancy in MCF7 breast cancer epithelial cells [PDF]

open access: yes, 2015
We report the whole genome ChIP seq for human TOP2B from MCF7 cells. Using three different peak calling methods, regions of binding were identified in the presence or absence of the nuclear hormone estradiol, as TOP2B has been reported to play a role in ...
Catriona M. Manville   +21 more
core   +1 more source

Phosphorylation events surrounding the DNA damage response in "Saccharomyces cerevisiae" [PDF]

open access: yes, 2007
Protein phosphorylation mediated by checkpoint kinases is crucial for the cellular response to DNA damage. The sensor kinases Mec1 and Tel1 initiate the checkpoint signaling cascade by directly activating the checkpoint effector kinase Rad53.
Schleker, Thomas Andreas
core   +1 more source

Integrating One Health to Mitigate the Emergence and Spread of Antimicrobial Resistance in Livestock and Aquaculture

open access: yesAnimal Research and One Health, EarlyView.
Antimicrobial resistance (AMR) is an escalating global threat driven by antimicrobial use in aquaculture and livestock. Resistant pathogens and genes can spread across humans, animals, and the environment through interconnected ecosystems. Using a One Health approach, this review emphasizes antimicrobial stewardship, regulatory strengthening, enhanced ...
Mir Mohammad Ali   +10 more
wiley   +1 more source

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