Results 101 to 110 of about 9,967 (240)

Discovery of New DNA Topoisomerase II Inhibitors using Structure Based Virtual Screening Method

Journal of the Turkish Chemical Society, Section A: Chemistry, 2019
DNA topoisomerases are proved therapeutic targets of anticancer and antibacterial drugs. Structures of topoisomerase–DNA and inhibitor ternary complexes have revealed the exact binding sites and mechanisms of topoisomerase poisons. There are two isoforms
Tugba Ertan-Bolelli, Kayhan Bolelli
doaj   +1 more source

Cell‐Specific Expression and Cellular Compartmental Regulation in Camptothecin Biosynthesis

Plant Biotechnology Journal, EarlyView.
ABSTRACT Plant secondary metabolites such as monoterpenoid indole alkaloids (MIAs) show tightly regulated biosynthesis and accumulation in specific organelles of distinct cell types. However, the cell‐specific expression patterns of anticancer MIA camptothecin biosynthetic genes in Ophiorrhiza pumila and the regulatory mechanisms of camptothecin ...
Xiaolong Hao, Yinkai Yang, Tiantian Chen, Xiaoxuan Fan, Yiqing Peng, Qingyan Ruan, Qin Zhou, Fanghao Liu, Jiayi He, Yongpeng Li, Yue Feng, Jiyan Qi, Guoyin Kai   +12 more
wiley   +1 more source

Structural and functional insights into the T-even type bacteriophage topoisomerase II

Nature Communications
T-even type bacteriophages are virulent phages commonly used as model organisms, playing a crucial role in understanding various biological processes. One such process involves the regulation of DNA topology during phage replication upon host infection ...
Yuhui Xin, Runqi Xian, Yunge Yang, Jingyuan Cong, Zihe Rao, Xuemei Li, Yutao Chen   +6 more
doaj   +1 more source

RAD51 and RAD51 paralog inhibition sensitizes nonreplicating quiescent keratinocytes to UV radiation

Photochemistry and Photobiology, EarlyView.
UV radiation and other compounds generate DNA adducts that block transcription and induce cell death if not removed by the nucleotide excision repair system. In this work, we used a small‐scale pharmacological screen to discover that inhibition of the recombinase RAD51 sensitized nonreplicating quiescent keratinocytes to both UVR and other agents that ...
Saman Khan, Angitha Nair, M. Alexandra Carpenter, Michael G. Kemp   +3 more
wiley   +1 more source

A role for topoisomerase II alpha in chromosome damage in human cell lines

, 2010
Human response to ionising radiation (IR) shows a wide variation. This is most clearly seen in the radiation-response of cells as measured by frequencies of chromosomal aberrations.
Terry, Samantha Y.A.
core  

Antibiotic‐mediated immune modulation in periodontitis

Periodontology 2000, EarlyView.
Abstract Periodontitis is a chronic inflammatory disease affecting the supporting structures of the teeth. Although initiated by dysbiotic microbial communities, its progression is largely driven by the host's uncontrolled inflammatory response. While antibiotics have conventionally been employed in periodontitis therapy for their antimicrobial ...
Lina J. Suárez, R. M. Arce, Camila Pinheiro Furquim, Cristiane Gonçalves, Alpdogan Kantarci, Magda Feres, Nidia C. Castro dos Santos   +6 more
wiley   +1 more source

DNA Topoisomerases and Their Poisoning by Anticancer and Antibacterial Drugs

, 2010
DNA topoisomerases are the targets of important anticancer and antibacterial drugs. Camptothecins and novel noncamptothecins in clinical development (indenoisoquinolines and ARC-111) target eukaryotic type IB topoisomerases (Top1), whereas human type IIA
Marchand, Christophe, Leo, Elisabetta, Zhang, HongLiang, Pommier, Yves   +3 more
core   +1 more source

Topoisomerase IIb binding delineates localized mutational processes and driver mutations in cancer genomes

Nature Communications
Type-II topoisomerases resolve topological stress in DNA through double-strand breaks. While topoisomerases are chemotherapy targets linked to therapy-related genotoxicity, TOP2B is uniquely positioned to influence mutagenesis through its activity in non-
Liis Uusküla-Reimand, Christian A. Lee, Robin H. Oh, Zoe P. Klein, Nina Adler, Sana Akhtar Alvi, Ellen Langille, Elisa Pasini, Kevin C. L. Cheng, Evgenija Serafimova, Diala Abd-Rabbo, Huayun Hou, Ricky Tsai, Mamatha Bhat, Daniel Schramek, Michael D. Wilson, Jüri Reimand   +16 more
doaj   +1 more source

A RADAR-Based Assay to Isolate Covalent DNA Complexes in Bacteria

Antibiotics, 2019
Quinolone antibacterials target the type II topoisomerases gyrase and topoisomerase IV and kill bacterial cells by converting these essential enzymes into cellular poisons. Although much is known regarding the interactions between these drugs and enzymes
Katie J. Aldred, Adeline Payne, Olivia Voegerl   +2 more
doaj   +1 more source

The role of extracellular vesicles in cell–cell crosstalk in cardiotoxicity

The Journal of Physiology, EarlyView.
Abstract figure legend Administration of a pharmacological agent can result in off‐target cardiotoxicity which can be driven by cell–cell crosstalk between healthy and dysfunctional cardiac cells. Extracellular vesicles (EVs) are lipid bilayer structures that can move biological cargo between cells, facilitating cell–cell crosstalk.
Gabriella Bachynskyj‐Bilas, Debbie J. Otto, Daniel Stratton, Katja Rietdorf, Daniel M. Johnson, Calum J. McMullen   +5 more
wiley   +1 more source