Results 101 to 110 of about 79,794 (267)

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]

, 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  

Bioengineered Bacterial Vesicles and Biomimetic Hybrids Eliminate Biofilms and Balance the Gut Microbiome

Small, EarlyView.
Biomimetic nanocarriers based on liposomes and Myxobacteria outer‐membrane vesicles (OMVs) are effective antibiotic delivery systems. Hybrids have a higher drug loading and can target intracellular pathogens, while OMVs evade immune clearance. Biomimetic nanoantibiotics effectively eliminate the biofilms of Gram‐negative bacteria. Besides, Myxobacteria
Leila Pourtalebi Jahromi, Benedikt Kronast, Jennifer Munkert, Lorenzo Sana, Marcus Koch, Heike Danzer, Sirka Dormeyer, Shuhan Jiang, Fabian Herrmann, Matthias Weiler, Anna Kashkanova, Vahid Sandoghdar, Mario M. Zaiss, Gregor Fuhrmann   +13 more
wiley   +1 more source

DNA Topoisomerase 1α Promotes Transcriptional Silencing of Transposable Elements through DNA Methylation and Histone Lysine 9 Dimethylation in Arabidopsis [PDF]

, 2014
RNA-directed DNA methylation (RdDM) and histone H3K9 dimethylation (H3K9me2) are related transcriptional silencing mechanisms that target transposable elements (TEs) and repeats to maintain genome stability in plants.
Chen, Xuemei, Dinh, Thanh Theresa, Ecker, Joseph R., Gao, Lei, Le, Brandon, Li, Dongming, Li, Shaofang, Li, Shengben, Liu, Xigang, Manavella, Pablo Andrés, O'leary, Michael, Pontes, Olga, Schmitz, Robert J., Weigel, Detlef, Zhao, Yuanyuan   +14 more
core   +5 more sources

Cardenolide‐Engineered Extracellular Vesicles Augment Drug Uptake and Cytotoxicity in Non‐small Cell Lung Cancer Cells

Small Methods, EarlyView.
Cardenolide‐functionalized extracellular vesicles enable targeted delivery of the chemotherapeutic doxorubicin to A549 lung cancer cells by binding Na+/K+‐ATPase, which is overexpressed in these cells. Surface‐modified, drug‐loaded EVs exhibit enhanced cytotoxicity compared to unmodified EVs and free drug, suggesting this system may lower the effective
Maja Dorfner, Anika Mifka, Rodrigo Maia de Pádua, Izabella Thaís da Silva, Iara Zanella Guterres, Lorenzo Sana, Gregor Fuhrmann, Jennifer Munkert   +7 more
wiley   +1 more source

Inhibitory action of exogenous cardiolipin on the bacterial type i and ii dna topoisomerases in vitro

Тонкие химические технологии, 2012
The influence of empty liposomes composed of cardiolipin (lipid which is a component of the bacterial cytoplasmic membrane and eukaryotic internal mitochondrial membrane) on Escherichia coli topoisomerase I and DNA gyrase (topoisomerase II) in vitro was ...
Yu. L. Mikulovich, G. М. Sorokoumova, А. А. Selishcheva, V. I. Shvets   +3 more
doaj  

Deciphering diverse cell‐death patterns to predict the prognosis and potential therapy target of hepatocellular carcinoma patients

VIEW, EarlyView.
Abstract Ninety percent of all primary liver malignancies are hepatocellular carcinomas (HCC), making liver cancer the third most common cause of cancer‐associated mortality. Different patterns of programmed cell death (PCD) are crucial for the survival of tumors, and they might serve as a prognostic marker for HCC.
Lin Ding, Qian Li, Wenjing Yang, Te Liu, Tongtong Tian, Yu Liu, Chunyan Zhang, Baishen Pan, Beili Wang, Fan Wu, Wei Guo   +10 more
wiley   +1 more source

Regulation of R-Loop Dynamics by Proteins and Long Noncoding RNAs: An Emerging Paradigm for Cancer Treatment. [PDF]

Cancer Sci
R‐loops are three‐stranded nucleic acid structures whose dysregulation leads to genomic instability and cancer progression. This review summarizes the protein and lncRNA machineries that regulate R‐loop dynamics and discusses the therapeutic potential of targeting these pathways in cancer.
Suzuki MM, Shinjo K, Nishimura T, Kondo Y.   +3 more
europepmc   +2 more sources

How topoisomerase IV can efficiently unknot and decatenate negatively supercoiled DNA molecules without causing their torsional relaxation. [PDF]

, 2016
Freshly replicated DNA molecules initially form multiply interlinked right-handed catenanes. In bacteria, these catenated molecules become supercoiled by DNA gyrase before they undergo a complete decatenation by topoisomerase IV (Topo IV).
Dorier, J., Millett, K.C., Racko, D., Rawdon, E.J., Stasiak, A.   +4 more
core   +2 more sources

Expression of the type I DNA topoisomerase gene in adenovirus-5 infected human cells

Nucleic Acids Research, 1990
The amount of topoisomerase I specific mRNA increases three- to fivefold during the early phase of infection of HeLa cells with adenovirus-5. The observed increase in specific mRNA is mainly due to an increased rate of transcription of the gene. In human 293 cells, which constitutively express the viral E1A and E1B genes, we determined an elevated ...
H, Romig, A, Richter
openaire   +3 more sources

ChitoSilkBioPatch: A bio‐inspired wound dressing scaffold for antibiotic‐free diabetic wound management

VIEW, EarlyView.
We present ChitoSilkBioPatch, a maleimide‐functionalized chitosan/dACM hydrogel integrated with a stretchable nanopatterned silk mesh to provide intrinsic, antibiotic‐free antibacterial activity and bioactive wound support. The scaffold eliminates S. aureus and P.
Dorsa Dehghan‐Baniani, Babak Mehrjou, Yucong Li, Zhaowei Jiang, Xiaomin Lu, Yin Xiao, Huanxiong Chen, Tsz Lam Yiu, Chi Chiu Wang, Hongkai Wu, Gang Li, Paul K. Chu, Wayne Yuk Wai Lee   +12 more
wiley   +1 more source