Results 61 to 70 of about 113,306 (267)

On the viability of Escherichia coli cells lacking DNA topoisomerase I

open access: yesBMC Microbiology, 2012
Background Manipulations of the DNA double helix during replication, transcription and other nucleic acid processing cause a change of DNA topology, which results in torsional stress.
Stockum Anna   +2 more
doaj   +1 more source

New Potential Pharmacological Targets of Plant-Derived Hydroxyanthraquinones from Rubia spp.

open access: yesMolecules, 2022
The increased use of polyphenols nowadays poses the need for identification of their new pharmacological targets. Recently, structure similarity-based virtual screening of DrugBank outlined pseudopurpurin, a hydroxyanthraquinone from Rubia cordifolia spp.
Petko Alov   +6 more
doaj   +1 more source

Effect of DNA repair deficiencies on the cytotoxicity of resveratrol [PDF]

open access: yes, 2015
Numerous preclinical studies have shown that the naturally-occurring polyphenol resveratrol may produce health-beneficial effects in a variety of disorders, including cancer, diabetes, Alzheimer, and cardiovascular diseases.
Burgos Morón, Estefanía   +5 more
core  

Bioinformatic Analysis for the Validation of Novel Biomarkers for Cancer Diagnosis and Drug Sensitivity [PDF]

open access: yes, 2015
Background: The genetic control of tumour progression presents the opportunity for bioinformatics and gene expression data to be used as a basis for tumour grading.
Lockwood, Laura Anne Rebecca
core   +2 more sources

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

open access: yesAdvanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green   +15 more
wiley   +1 more source

Effect of Metal-Binding Antimicrobial Peptide SIF4 on Topoisomerases Activity and Intracellular Nucleic Acid Biosynthesis in Escherichia coli [PDF]

open access: yesShipin Kexue
To systematically elucidate how metal-binding antimicrobial peptide SIF4 exerts its antimicrobial activity by targeting DNA topoisomerase without destroying the cytoplasmic membrane, Escherichia coli was used as a model strain to investigate the binding ...
LI Yuzhen, XIAO Huaiqiu, ZHOU Huiheng, LI Lan, KUANG Yan, LIU Miao, ZHAO Mouming
doaj   +1 more source

The role of NF-Y in the transcriptional regulation of human topoisomerase II¯ : a thesis presented to Massey University in partial fulfilment of the requirement for the degree of Master of Science in Biochemistry [PDF]

open access: yes, 2001
DNA topoisomerases are ubiquitous enzymes that catalyse reactions that alter the topological state of DNA during the various processes of DNA metabolism including transcription, recombination, replication and chromosome segregation. Human cells exhibit a
Hintz, Patricia Ann
core  

Critical concepts, practice recommendations, and research perspectives of pixantrone therapy in non-Hodgkin lymphoma: a SIE, SIES, and GITMO consensus paper [PDF]

open access: yes, 2016
Objectives: In this paper, we present a review of critical concepts and research perspectives and produce recommendations on the optimal use of pixantrone in non-Hodgkin lymphoma (NHL) by group discussion from an expert panel appointed by the Italian ...
Barosi, Giovanni   +7 more
core   +1 more source

Piezo1 Channel Mediates Mechanically Programmable Drug Delivery to Potentiate Intravesical Chemotherapy

open access: yesAdvanced Science, EarlyView.
This study utilizes programmable mechanical pressure as a therapeutic enhancer to establish a mechano‐chemotherapy strategy. Controlled pressure activates the mechanosensitive ion channel Piezo1 in bladder cancer, triggering a calcium ion cascade that transiently and reversibly amplifies membrane permeability to chemotherapeutics.
Minghai Ma   +16 more
wiley   +1 more source

Differential regulation of NF-κB activation and function by topoisomerase II inhibitors

open access: yesBMC Cancer, 2006
Background While many common chemotherapeutic drugs and other inducers of DNA-damage result in both NF-κB nuclear translocation and DNA-binding, we have previously observed that, depending on the precise stimulus, there is great diversity of the function
Perkins Neil D   +2 more
doaj   +1 more source

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