Results 61 to 70 of about 60,395 (277)

Stimuli‐Responsive Silsesquioxane Nanozymes for Organocatalysis in Water and Prodrug Activation in Cells

Angewandte Chemie, EarlyView.
Amino‐bearing silsesquioxanes are water‐stable nanozymes that exhibit aggregation‐ and disaggregation‐dependent catalysis and can be applied to intracellular prodrug activation for cancer therapy. ABSTRACT Synthetic nanozymes have emerged as promising alternatives to natural enzymes for catalytic and therapeutic applications, yet their limited ...
Rabia Zahid, Ariadna Lázaro, Guillermo Moreno‐Alcántar, María Sancho‐Albero, Pierre Picchetti   +4 more
wiley   +2 more sources

Crystal Structures of the 43 kDa ATPase Domain of Xanthomonas Oryzae pv. Oryzae Topoisomerase IV ParE Subunit and its Complex with Novobiocin

Crystals, 2019
Topoisomerase IV, one of the best-established antibacterial targets, is an enzyme crucial for chromosome segregation and cell division by catalyzing changes in DNA topology through breaking and rejoining DNA.
Ha Yun Jung, Yong-Seok Heo
doaj   +1 more source

Topoisomerase I inhibitors: Review and update

Annals of Oncology, 1997
This review presents a summary of preclinical and clinical data on the topoisomerase I (topo I) inhibitors that are under clinical development. To date, all of the topo I inhibitors that have been clinically evaluated are analogues of camptothecin, an extract of the Chinese tree Camptotheca acuminata.
openaire   +2 more sources

Deciphering the Role of Cancer Stem Cells in Breast Cancer Brain Colonization Using a Novel Patient‐Derived Model

Advanced Healthcare Materials, EarlyView.
This study shows that stem‐like cells isolated from breast cancer brain metastases drive the spread and growth of tumors in the brain. Among them, a highly adhesive subgroup initiates metastasis and resists many drugs. By closely reflecting patient tumors, these models help identify new targets and improve the development of effective treatments ...
Stefania Faletti, Cristina Richichi, Daniela Osti, Elena Ceccacci, Giovanni Bertalot, Camilla Cerutti, Giuseppina Giardina, Adriana Marinaro, Brunella Costanza, Valentina Gambino, Elena Zaccheroni, Daniela Tosoni, Maria G. Filippone, Marcello Del Corvo, Yinxiu Zhan, Teresa Gravina, Davide Corà, Monica Patanè, Bianca Pollo, Maria Giovanna Jodice, Salvatore Pece, Babette B. Weksler, Ignacio A. Romero, Pierre‐Olivier Couraud, Elisabetta Munzone, Massimiliano Del Bene, Francesco DiMeco, Giuliana Pelicci   +27 more
wiley   +1 more source

Polymorphism in glutathione S-transferase P1 is associated with susceptibility to chemotherapyinduced leukemia [PDF]

, 2001
Glutathione S-transferases (GSTs) detoxify potentially mutagenic and toxic DNA-reactive electrophiles, including metabolites of several chemotherapeutic agents, some of which are suspected human carcinogens.
Allan, J.M., Wild, C.P., Rollinson, S., Willett, E.V., Moorman, A.V., Dovey, G.J., Roddam, P.L., Roman, E., Cartwright, R.A., Morgan, G.J.   +9 more
core   +7 more sources

Review and Current Perspectives on DNA Topoisomerase I and II Enzymes of Fungi as Study Models for the Development of New Antifungal Drugs

Journal of Fungi
Fungal infections represent a growing public health problem, mainly stemming from two phenomena. Firstly, certain diseases (e.g., AIDS and COVID-19) have emerged that weaken the immune system, leaving patients susceptible to opportunistic pathogens ...
Dulce Andrade-Pavón, Omar Gómez-García, Lourdes Villa-Tanaca   +2 more
doaj   +1 more source

Bulge oligonucleotide as an inhibitory agent of bacterial topoisomerase I

Journal of Enzyme Inhibition and Medicinal Chemistry, 2018
Bacterial topoisomerase I (Btopo I) was defined as potential target for discovery of new antibacterial compounds. Various oligonucleotides containing bulge structure were designed and synthesised as inhibitors to Btopo I in this investigation.
Zhaoqi Yang, Tuoyu Jiang, Hanshi Zhong, Yu Kang   +3 more
doaj   +1 more source

Assembling a True “Olympic Gel” From over 16 000 Combinatorial DNA Rings

Advanced Materials, EarlyView.
Olympic gels are an elusive class of soft matter, consisting of molecular networks held together purely by mechanically interlocked rings. Their topological structure promises unique properties and functions, but their synthesis has proven notoriously difficult.
Sarah K. Speed, Yu‐Hsuan Peng, Azra Atabay, Krishna Gupta, Toni Müller, Carolin Fischer, Ilka M. Hermes, Jens‐Uwe Sommer, Michael Lang, Elisha Krieg   +9 more
wiley   +1 more source

Tumor-targeted top1 inhibitor delivery with optimized parp inhibition in advanced solid tumors: a phase i trial of gapped scheduling

Nature Communications
Despite mechanistic rationale for combining PARP inhibitors with topoisomerase I inhibitors, clinical use has been hindered by dose-limiting toxicities.
Anish Thomas, Nobuyuki Takahashi, Lenka Oplustil O’Connor, Christophe E. Redon, Chirayu Mohindroo, Linda Sciuto, Lorinc Pongor, Keith T. Schmidt, Seth M. Steinberg, Mirit I. Aladjem, William Douglas Figg, Mark J. O’Connor, Yves Pommier   +12 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]

, 2006
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