Structure Guided Design of Xanthomonas oryzae pv. oryzae Topoisomerase I Inhibitors
Topoisomerase inhibitors initiate the cell killing process by either stabilizing or increasing the amount of the covalent complex formed between the enzyme and cleaved DNA. [...]
Lakindu Samaranayake P. K. +1 more
doaj +1 more source
Topoisomerase I inhibitors, shikonin and topotecan, inhibit growth and induce apoptosis of glioma cells and glioma stem cells. [PDF]
Gliomas, the most malignant form of brain tumors, contain a small subpopulation of glioma stem cells (GSCs) that are implicated in therapeutic resistance and tumor recurrence.
Feng-Lei Zhang +6 more
doaj +1 more source
Transcriptional regulation of human topoisomerase II beta : a thesis presented to Massey University in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry [PDF]
Pages 24 and 25 are missing from the original copy.Topoisomerase II has an essential role in maintaining the DNA in the correct topological state required for various cellular processes.
Mawson, Claire
core
Potential novel therapy targets in neuroendocrine carcinomas of the breast [PDF]
Neuroendocrine carcinoma (NEC) of the breast is a rare, special type of breast cancer, reportedly constituting 2% to 5% of all breast cancers. Although breast NEC does not have a specific targeted therapy, several new targeted therapies based on specific
Contreras, Elma +7 more
core +2 more sources
ZNRD2 Mediated Nucleoprotein Aggregation Impairs Respiratory Syncytial Virus Replication
During RSV infection, nucleoprotein (N) forms RNA‐bound oligomers. The host protein ZNRD2 binds to these oligomers, promoting their transition into insoluble aggregates. These aggregates simultaneously sequester functional N to restrict viral production and disrupt chaperonin assembly quality control by interfering with ZNRD2's role as an adaptor ...
Haiwu Zhou +8 more
wiley +1 more source
E5501: phase II study of topotecan sequenced with etoposide/cisplatin, and irinotecan/cisplatin sequenced with etoposide for extensive-stage small-cell lung cancer. [PDF]
PURPOSE: Sequence-dependent improved efficacy of topoisomerase I followed by topoisomerase 2 inhibitors was assessed in a randomized phase II study in extensive-stage small-cell lung cancer (SCLC).
Aisner, Joseph +9 more
core +2 more sources
Studying DNA Double-Strand Break Repair: An Ever-Growing Toolbox [PDF]
To ward off against the catastrophic consequences of persistent DNA double-strand breaks (DSBs), eukaryotic cells have developed a set of complex signaling networks that detect these DNA lesions, orchestrate cell cycle checkpoints and ultimately lead to ...
Almeida, Sérgio F. de +3 more
core +4 more sources
Cinnamic‐hydroxamic‐acid derivatives (CHADs) are identified as novel inhibitors of the bacterial nucleoid‐associated protein HU, exhibiting potent antibacterial, anti‐biofilm (both inhibition and eradication), and DNA relaxation (anti‐supercoiling) activities. Moreover, CHADs demonstrate strong synergistic effects with multiple antibiotics.
Huan Chen +22 more
wiley +1 more source
Homoisoflavanone (HIF), a bioactive compound isolated from Polygonatum kingianum, selectively suppresses colorectal cancer progression by inducing DNA damage‐mediated mitochondrial apoptosis and parthanatos‐like cell death. HIF triggers mitochondrial dysfunction, including depolarized membrane potential, elevated ROS, and ATP depletion, while impairing
Hongjie Fan +12 more
wiley +1 more source
TDP1/TOP1 ratio as a promising indicator for the response of small cell lung cancer to topotecan [PDF]
BACKGROUND AND OBJECTIVE Small cell lung cancer (SCLC) is one of the most challenging tumors to treat due to high proliferation rate, early metastatic dissemination and rapid development of chemotherapy resistance.
El-Khamisy, Sherif F +3 more
core +3 more sources

