Results 61 to 70 of about 89,922 (309)

Heterozygous loss‐of‐function alleles associate the conserved 3′‐5′ exoribonuclease EXOSC10 with hypersensitivity to the anticancer drug 5‐fluorouracil

Molecular Oncology, EarlyView.
EXOSC10, an essential nuclear RNA exosome‐associated 3′‐5′ exoribonuclease, is inhibited by the anticancer drug 5‐fluorouracil (5‐FU), and EXOSC10 depletion increases 5‐FU sensitivity. The colon‐cancer variant EXOSC10S402T, located in a proteolysis motif, is stable and nuclear but nonfunctional in vivo.
Radhika Sain, Yann Le Page, Frédéric Percevault, Emmanuelle Becker, Luc Negroni, Almudena Fernandez, Marta Cantero, Diego Muñoz‐Santos, Lluís Montoliu, Cyrille Garnier, Michael Primig   +10 more
wiley   +1 more source

Trypanosomal histone γH2A and the DNA damage response. [PDF]

, 2012
DNA damage and repair in trypanosomatids impacts virulence, drug resistance and antigenic variation but, currently, little is known about DNA damage responses or cell cycle checkpoints in these divergent protozoa.
Glover, Lucy, Horn, David, Horn, David; id_orcid   +2 more
core   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

Molecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner, Pierre Tennstedt, Randi C. Pose, Christian Müller, Katharina Besler, Svenja Schneegans, Malik Alawi, Marie C. Roesch, Sven Peine, Desiree Bonci, Joanna Budna‐Tukan, Evi Lianidou, Catherine Alix‐Panabières, Derya Tilki, Klaus Pantel   +14 more
wiley   +1 more source

Homologous Recombination Assay

Bio-Protocol, 2013
Repair of double strand break by homologous recombination was examined using U2OS cells or RG37 cells harbouring specific substrate developed by Puget et al. (2005) and Dumay et al.
Yvan Canitrot, Didier Trouche
doaj   +1 more source

DNA Double Strand Break Repair and Its Control by Nucleosome Remodeling

Frontiers in Genetics, 2022
DNA double strand breaks (DSBs) are repaired in eukaryotes by one of several cellular mechanisms. The decision-making process controlling DSB repair takes place at the step of DNA end resection, the nucleolytic processing of DNA ends, which generates ...
Leonhard Andreas Karl, Martina Peritore, Lorenzo Galanti, Boris Pfander   +3 more
doaj   +1 more source

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

Molecular Oncology, EarlyView.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata, Koji Ando, Hirofumi Hasuda, Koshi Mimori, Elizabeth C. Unan, Siddhartha Pulukuri, Aahana Tiku, Allison Berger, Eiji Oki, Ajit Bharti, Tomoharu Yoshizumi   +10 more
wiley   +1 more source

Direct Involvement of Retinoblastoma Family Proteins in DNA Repair by Non-homologous End-Joining.

, 2015
Deficiencies in DNA double-strand break (DSB) repair lead to genetic instability, a recognized cause of cancer initiation and evolution. We report that the retinoblastoma tumor suppressor protein (RB1) is required for DNA DSB repair by canonical non ...
Spanswick, VJ, Maciej T. Luczynski, Rieger, Simone, Luczynski, Maciej T., Cook, Rebecca, Cook, R, Hartley, JA, Paul H. Huang, Victoria J. Spanswick, Huang, Paul H., Hartley, John A., John A. Hartley, Luczynski, MT, Rieger, S, Mittnacht, Sibylle, Mittnacht, S, Spanswick, Victoria J., Moquet, J, Huang, PH, Kai Rothkamm, Zoumpoulidou, Georgia, Jayne Moquet, Zoumpoulidou, G, Georgia Zoumpoulidou, Simone Rieger, Sibylle Mittnacht, Rothkamm, K, Rebecca Cook, Moquet, Jayne, Rothkamm, Kai   +29 more
core   +1 more source

Asymmetric Processing of DNA Ends at a Double-Strand Break Leads to Unconstrained Dynamics and Ectopic Translocation

Cell Reports, 2018
Summary: Multiple pathways regulate the repair of double-strand breaks (DSBs) to suppress potentially dangerous ectopic recombination. Both sequence and chromatin context are thought to influence pathway choice between non-homologous end-joining (NHEJ ...
Isabella Marcomini, Kenji Shimada, Neda Delgoshaie, Io Yamamoto, Andrew Seeber, Anais Cheblal, Chihiro Horigome, Ulrike Naumann, Susan M. Gasser   +8 more
doaj   +1 more source

Epigenetic Mechanisms in DNA Double Strand Break Repair: A Clinical Review

Frontiers in Molecular Biosciences, 2021
Upon the induction of DNA damage, the chromatin structure unwinds to allow access to enzymes to catalyse the repair. The regulation of the winding and unwinding of chromatin occurs via epigenetic modifications, which can alter gene expression without ...
Alejandra Fernandez, Connor O’Leary, Connor O’Leary, Kenneth J O’Byrne, Kenneth J O’Byrne, Joshua Burgess, Joshua Burgess, Derek J Richard, Derek J Richard, Amila Suraweera, Amila Suraweera   +10 more
doaj   +1 more source