Results 101 to 110 of about 14,206 (239)

New Insights into the Geometry and Topology of DNA Replication Intermediates

Biology
The regulation of superhelical stress, mediated by the combined action of topoisomerases and fork rotation, is crucial for DNA replication. The conformational changes during DNA replication are still experimentally challenging, mainly due to the rapid ...
Victor Martínez, Edith Ruiz-Díaz, Delia Cardozo, Cristian Cappo, Christian E. Schaerer, Jorge Cebrián, Dora B. Krimer, María José Fernández-Nestosa   +7 more
doaj   +1 more source

Delivery of nano‐formulated drugs to solid tumours is selectively increased by co‐application of the vascular disrupting agent CA4P

British Journal of Pharmacology, EarlyView.
Background and purpose Nano‐formulated chemotherapeutics prolong systemic availability of drugs and can reduce systemic toxicity, but their accumulation in solid tumours is often limited and unpredictable. Broadly applicable strategies to selectively enhance tumour delivery are lacking.
Annabel Kitowski, Constanze Heise, Stefanie Sperling, Jasmin Hotz, Danica Bajic, Marina Rubey, Kathrin Klar, Georg Höfner, Julien Vollaire, Veronique Josserand, Jean‐Luc Coll, Oliver Thorn‐Seshold, Petar Marinković, Julia Thorn‐Seshold   +13 more
wiley   +1 more source

The Topopyrones Poison Human DNA Topoisomerases I and II

, 2016
The Topopyrones Poison Human DNA Topoisomerases I and ...
Mark A. Elban (515828), Sidney M. Hecht (1305729), Qasim A. Khan (2417008)   +2 more
core   +1 more source

Development and analytical validation of a targeted short‐read next generation sequencing‐based pharmacogenetic panel for comprehensive variant detection

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Genomic profiling of patients for genetic variants that modify the effect of specific medications has many benefits, including the possibility of avoiding toxicities and ensuring an adequate effect of the medication. Our intention was to develop a comprehensive, high‐quality pharmacogenetic test panel for clinical use ...
Anna Gréen, Nils Johan Fredriksson, Michael Andresen, Jon Jonasson, Malin Lindqvist Appell, Henrik Gréen   +5 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

Targeting DNA topoisomerases or checkpoint kinases results in an overload of chaperone systems, triggering aggregation of a metastable subproteome. [PDF]

Elife, 2022
Huiting W, Dekker SL, van der Lienden JCJ, Mergener R, Musskopf MK, Furtado GV, Gerrits E, Coit D, Oghbaie M, Di Stefano LH, Schepers H, van Waarde-Verhagen MAWH, Couzijn S, Barazzuol L, LaCava J, Kampinga HH, Bergink S.   +16 more
europepmc   +1 more source

Proteostasis of organelles in aging and disease

The FEBS Journal, EarlyView.
Cells rely on regulated proteostasis mechanisms to keep their internal compartments functioning properly. When these mechanisms fail, damaged proteins accumulate, disrupting organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi, and lysosomes, as well as membraneless organelles, such as stress granules, processing bodies, the ...
Yara Nabawi, Cansu Doğan, Dunja Petrović, Gülce Perçin, Seda Koyuncu, David Vilchez   +5 more
wiley   +1 more source

Mechanism of topology simplification by type II DNA topoisomerases

, 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   +2 more sources

New molecular biologist perspective and insight: DNA topoisomerases production by recombinant DNA technology for medical laboratory application and pharmaceutical industry [PDF]

, 2013
DNA topoisomerases are essential enzymes that control the topological state of DNA replication during mitosis. These enzymes are classified based on their mechanisms and physical properties.
Khoo, Boon Yin, Chew, Ai Lan, Khoo,Boon Yin, Chew,Ai Lan, Chan,Mooi Kwai, Fadzil,Nur Adila, Fadzil, Nur Adila, Chan, Mooi Kwai   +7 more
core   +1 more source

Human APOBEC3G suppresses homologous recombination and LIG4‐independent end joining in DNA double‐strand break repair

The FEBS Journal, EarlyView.
Chromosomal DNA double‐strand breaks (DSBs) are repaired by homologous recombination and nonhomologous end joining (NHEJ). Recent work has additionally established theta‐mediated end‐joining (TMEJ) as a mechanism for DSB joining. Cells lacking NHEJ and TMEJ can repair DSBs in a homology‐dependent manner.
Shinta Saito, Miori Murayama, Usaki Arai, Sekifumi Akatsu, Ami Yamamoto, Misaki Kadoguchi, Noritaka Adachi   +6 more
wiley   +1 more source