Results 131 to 140 of about 14,206 (239)

Duocarmycin‐Bearing Antibody‐Mimetic Drug Conjugate Combined With an ATR Inhibitor Results in Complete Tumor Regression in a KPL‐4 Xenograft Model

Cancer Medicine, Volume 15, Issue 7, July 2026.
ABSTRACT Antibody–drug conjugates (ADCs) have demonstrated superior clinical outcomes in patients with HER2‐positive advanced breast cancer compared with previous treatment modalities. However, resistance and treatment‐limiting toxicities frequently emerge during repeated administration, underscoring an unmet need for strategies to overcome ADC failure.
Toshiya Tanaka, Akira Sugiyama, Juri Sakata, Toshifumi Tatsumi, Hiroto Katoh, Keisuke Maeda, Yuya Inagaki, Takefumi Yamashita, Takeshi Kawamura, Mayu Kuratani, Taiki Nakano, Masazumi Ishii, Mai Miura, Wakana Kamiya, Yuko Shiratori, Hisato Kitanoya, Michael Chansler, Naoki Harada, Masayuki Tsuchiya, Tsuyoshi Osawa, Shumpei Ishikawa, Tatsuhiko Kodama, Kenzo Yamatsugu, Hidetoshi Tokuyama, Motomu Kanai   +24 more
wiley   +1 more source

A living biobank of sarcoma patient‐derived cell cultures reveals multi‐omic and functional insights that capture disease heterogeneity

Clinical and Translational Medicine, Volume 16, Issue 7, July 2026.
Preclinical models for sarcoma that preserve tumour biology are urgently needed to advance mechanistic understanding and functional precision oncology. 29 early‐passage patient‐derived sarcoma cell (PDC) cultures from 19 patients, representing 11 sarcoma subtypes were established and extensively characterized.
Stefanie Gijsels, Suzanne Fischer, David Creytens, Sándor Dedeyne, Felix De Vuyst, Cláudio Pinheiro, Fleur Cordier, Sarah‐Lee Bekaert, Nadine Van Roy, Kaat Durinck, Jarne Pauwels, Kris Gevaert, Pieter Mestdagh, Jo Vandesompele, Pekka Rappu, Jyrki Heino, An Hendrix, Gabrielle H. van Ramshorst, Gwen Sys, Olivier De Wever   +19 more
wiley   +1 more source

Anthocyanidins modulate the activity of human DNA topoisomerases I and II and affect cellular DNA integrity

, 2005
In the present study, we investigated the effect of anthocyanidins on human topoisomerases I and II and its relevance for DNA integrity within human cells.
Fritz, Jessica, Habermeyer, Michael, Barthelmes, Hans U, Boege, Fritz, Christensen, Morten O, Marko, Doris, Larsen, Morten K,   +6 more
core   +1 more source

Exosome Secretion Drives Chemo‐Resistance of Temozolomide in Glioblastoma

Journal of Extracellular Biology, Volume 5, Issue 7, July 2026.
ABSTRACT Temozolomide (TMZ) is a first‐line chemotherapeutic agent for the treatment of glioblastoma (GBM), while a majority of patients do not effectively respond to TMZ owing to the multiple resistance mechanisms. In this study, we found that TMZ treatment substantially increased the exosome secretion from GBM cell line.
Wenpei Li, Shaoping Jiang, Kun Liu, Zhi Li, Jun Yang, Weimin Liu, Yuanyu Huang, Minghui Yang, Shuai Guo, Shaobo Ruan   +9 more
wiley   +1 more source

Role of Supercoiling and Topoisomerases in DNA Knotting

DNA
DNA knots are deleterious for living cells if not removed. Several theoretical and simulation approaches address the question of how topoisomerases select the intermolecular passages that preferentially lead to unknotting rather than to the knotting of ...
Jorge Cebrián, María-Luisa Martínez-Robles, Victor Martínez, Pablo Hernández, Dora B. Krimer, Jorge B. Schvartzman, María-José Fernández-Nestosa   +6 more
doaj   +1 more source

A role for topoisomerase II alpha in chromosome damage in human cell lines

, 2010
Human response to ionising radiation (IR) shows a wide variation. This is most clearly seen in the radiation-response of cells as measured by frequencies of chromosomal aberrations.
Terry, Samantha Y.A.
core  

The Dynamic Interplay Between DNA Topoisomerases and DNA Topology. [PDF]

Biophys Rev, 2016
Seol Y, Neuman KC.
europepmc   +2 more sources

Natural Products as Modulators of ABC Transporters in Breast Cancer

Phytotherapy Research, Volume 40, Issue 7, Page 4611-4637, July 2026.
ABSTRACT Breast cancer remains a significant global health challenge, with high incidence and mortality rates despite advancements in early detection and treatment. Multidrug resistance (MDR), particularly in aggressive subtypes like triple‐negative breast cancer (TNBC), continues to hinder effective therapy.
Yoganishalini Sagadevan, Reyhaneh Farghadani, Ammu K. Radhakrishnan   +2 more
wiley   +1 more source

Kinetic pathways of topology simplification by Type-II topoisomerases in knotted supercoiled DNA

, 2019
The topological state of covalently closed, double-stranded DNA is defined by the knot type $K$ and the linking-number difference $\\Delta Lk$ relative to unknotted relaxed DNA. DNA topoisomerases are essential enzymes that control the topology of DNA in
Levene, Stephen D., Ziraldo, Riccardo, Hanke, Andreas   +2 more
core   +2 more sources

Antibiotics in Veterinary Ophthalmology: Resistance, Stewardship, and Emerging Antibiotic‐Sparing Strategies

Veterinary Ophthalmology, Volume 29, Issue 4, July 2026.
ABSTRACT Antimicrobial resistance (AMR) is a growing challenge in veterinary ophthalmology, particularly in cases of bacterial keratitis, where progressive stromal infection can threaten vision and globe integrity within hours to days. This review synthesizes current evidence on pathogen distribution, antimicrobial susceptibility profiles, multidrug ...
Lionel Sebbag, Oren Pe'er
wiley   +1 more source