Results 81 to 90 of about 1,469,390 (226)

Epigenetic Reactivation of TNFRSF19 Suppresses Mitophagy and Sensitizes Triple‐Negative Breast Cancer to Doxorubicin

Advanced Science, EarlyView.
TNFRSF19 is an epigenetically silenced regulator of mitophagy in triple‐negative breast cancer. TNFRSF19 deficiency activates the TGFBR1–SMAD3–PINK1 axis to promote mitophagy and confer doxorubicin resistance, whereas decitabine‐mediated restoration of TNFRSF19 suppresses mitophagy and enhances doxorubicin sensitivity, revealing a targetable epigenetic–
Shiyang Liu, Chenguang Liu, Weihong Zheng, Xiaofei Tong, Zhengwei Gui, Zonghong Lu, Sun Ieong, Lin Zhang   +7 more
wiley   +1 more source

DNA Topoisomerases and Their Poisoning by Anticancer and Antibacterial Drugs [PDF]

, 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

Plant Metabolites Screening Identifies 7‐epi‐10‐Deacetyltaxol Inhibiting Cell Division by Interfering With the Cell Cycle and Microtubule Organization

Advanced Science, EarlyView.
In this study, an efficient screening system is developed for plant metabolites to find a compound, 7‐epi‐10‐deacetyltaxol, inhibits tissue elongation. It suppresses plant growth through brassinosteroid and microtubule pathways. It is later applied to animal cells and human tumor organoids, resulting in similar cell division suppression. These findings
Yan‐Jie Zhang, Yu‐Xuan Bai, Geng G. Tian, Bin Zhang, Ding‐Yi Lu, Qing‐Ping Yao, Wen‐Hao Tian, Xiao‐Na Wei, Jing‐Ting Yang, Ze‐Yu Xiong, Yi Lu, Yu‐Tong Jiang, Chun‐Hui Cai, Yu‐Ming Lu, Xian‐Qing Jia, Li‐Li Jing, Bao‐Jun Yang, Ying‐Xin Qi, Xin‐Xin Han, Ji Wu, Wen‐Hui Lin   +20 more
wiley   +1 more source

Mechanism of topology simplification by type II DNA topoisomerases [PDF]

, 2001
Type II DNA topoisomerases actively reduce the fractions of knotted and catenated circular DNA below thermodynamic equilibrium values. To explain this surprising finding, we designed a model in which topoisomerases introduce a sharp bend in DNA.
Cozzarelli, N. R., Vologodskii, A. V., Griffith, J. D., Rybenkov, V. V., Zhang, W., Podtelezhnikov, A. A., Subramanian, D.   +6 more
core   +1 more source

Thermal Shifts Dominate Single‐Gene Responses to Transcription‐Targeting Antibiotics

Advanced Science, EarlyView.
Thermal shifts reshape bacterial responses to transcription‐targeting antibiotics. In E. coli, temperature can dominate antibiotic‐induced genome‐wide expression, particularly outside 30°C–39°C, through changes in adenosine triphosphate (ATP), nucleoid organization, and drug‐target engagement.
Rahul Jagadeesan, Amir M. Arsh, Vatsala Chauhan, Suchintak Dash, Pooja Ravaria, Andre S. Ribeiro   +5 more
wiley   +1 more source

Application of a novel microtitre plate-based assay for the discovery of new inhibitors of DNA gyrase and DNA topoisomerase VI.

PLoS ONE, 2013
DNA topoisomerases are highly exploited targets for antimicrobial drugs. The spread of antibiotic resistance represents a significant threat to public health and necessitates the discovery of inhibitors that target topoisomerases in novel ways.
James A Taylor, Lesley A Mitchenall, Martin Rejzek, Robert A Field, Anthony Maxwell   +4 more
doaj   +1 more source

MPP8 Facilitates DNA DSB Repair via NHEJ to Promote Chemoresistance of TNBC Independent of Methyl‐H3K9 Binding

Advanced Science, EarlyView.
Chemoresistance is often linked to elevated DNA repair. MPP8 is found to promote breast cancer chemoresistance as a novel NHEJ accessory factor independent of its epigenetic functions. Through multiple protein interactions, MPP8 facilitates association of DNAPK and ligase complexes to promote DNA repair progression.
Rupa Kumari, Jia Fang
wiley   +1 more source

Structural insights into the DNA topoisomerase II of the African swine fever virus

Nature Communications
Type II topoisomerases are ubiquitous enzymes that play a pivotal role in modulating the topological configuration of double-stranded DNA. These topoisomerases are required for DNA metabolism and have been extensively studied in both prokaryotic and ...
Jingyuan Cong, Yuhui Xin, Huiling Kang, Yunge Yang, Chenlong Wang, Dongming Zhao, Xuemei Li, Zihe Rao, Yutao Chen   +8 more
doaj   +1 more source

Structural insights into the gating of DNA passage by the topoisomerase II DNA-gate

Nature Communications, 2018
Type II DNA topoisomerases (Top2s) direct the passage of one DNA duplex through another, which is important for resolving DNA entanglements. Here the authors combine X-ray crystallography and MD simulations and present the structure of the human Top2 DNA-
Shin-Fu Chen, Nan-Lan Huang, Jung-Hsin Lin, Chyuan-Chuan Wu, Ying-Ren Wang, Yu-Jen Yu, Michael K. Gilson, Nei-Li Chan   +7 more
doaj   +1 more source

Lactate‐H3K18la‐RPL11 Axis Drives Gemcitabine Resistance in Pancreatic Cancer by Integrating Protein Synthesis and DNA Damage Repair

Advanced Science, EarlyView.
A lactate‐H3K18la epigenetic axis upregulates RPL11 to drive gemcitabine resistance in pancreatic cancer. RPL11 orchestrates chemoresistance through a dual, compartmentalized role: enhancing cytoplasmic protein synthesis via EEF1A1 stabilization and promoting nuclear DNA damage repair by co‐activating PARP14, thus ensuring robust cell survival ...
Lijun Zhao, Jianzhong Cao, Wenyue Liu, Xuyun Li, Haolin Zhang, Xiaofang Zhang, Shiyang Shi, Huilong Yin, Junjie Li, Angang Yang, Rui Zhang   +10 more
wiley   +1 more source