Results 51 to 60 of about 235,920 (306)

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Role of the Putative Zinc Finger Domain of Saccharomyces cerevisiae DNA Polymerase epsilon in DNA Replication and the S/M Checkpoint Pathway [PDF]

, 1998
It has been proposed that C-terminal motifs of the catalytic subunit of budding yeast polymerase (pol) epsilon (POL2) couple DNA replication to the S/M checkpoint (Navas, T. A., Zheng, Z., and Elledge, S. J. (1995) Cell 80, 29-39).
Campbell, Judith L., Dua, Rajiv, Levy, Daniel L.   +2 more
core  

Dicer prevents genome instability in response to replication stress [PDF]

, 2019
Dicer, an endoribonuclease best-known for its role in microRNA biogenesis and RNA interference pathway, has been shown to play a role in the DNA damage response and repair of double-stranded DNA breaks (DSBs) in mammalian cells.
Barra, Viviana, Bordignon, Benoit, Coquelle, Arnaud, Egger, Tom, Fragkos, Michalis, Lemacon, Delphine, Naim, Valeria   +6 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Few crucial links assure checkpoint efficiency in the yeast cell-cycle network [PDF]

, 2017
Motivation: The ability of cells to complete mitosis with high fidelity relies on elaborate checkpoint mechanisms. We study S- and M-phase checkpoint responses in silico in the budding yeast with a stochastic dynamical model for the cell-cycle. We aim to
Naef, Félix, Rougemont, Jacques, Stoll, Gautier   +2 more
core  

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

Drug-induced cell cycle modulation leading to cell-cycle arrest, nuclear mis-segregation, or endoreplication

BMC Cell Biology, 2011
Background Cancer cell responses to chemotherapeutic agents vary, and this may reflect different defects in DNA repair, cell-cycle checkpoints, and apoptosis control.
Kobayashi Tamiyo, Sakaue-Sawano Asako, Ohtawa Kenji, Miyawaki Atsushi   +3 more
doaj   +1 more source

Contribution of DNA repair and cell cycle checkpoint arrest to the maintenance of genomic stability [PDF]

, 2006
DNA damage response mechanisms encompass pathways of DNA repair, cell cycle checkpoint arrest and apoptosis. Together, these mechanisms function to maintain genomic stability in the face of exogenous and endogenous DNA damage.
Ahnesorg, Buck, Calsou, Chappell, Chun, Cui, Difilippantonio, Dore, Fernandez-Capetillo, Frank, Gao, Gladdy, Hefferin, Hirao, Jeggo, Jeggo, Kemp, Kuhne, Kurz, Lavin, Lee, Liu, Lobrich, Lukas, Ma, Markus Löbrich, Moshous, Moshous, Nick McElhinny, Penny A. Jeggo, Poinsignon, Riballo, Rooney, Rothkamm, Stankovic, Stankovic, Terzoudi, Walker, Wang, Weterings, Wyman, Zhang   +41 more
core   +1 more source

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

Molecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken, Andrea Abel Gutierrez, Imke van Rossum, Cornelia G. Spruijt, Michiel Vermeulen, Guido van Mierlo, Blanca Scheijen, Annemiek B. van Spriel   +7 more
wiley   +1 more source

Coupling of the cell cycle and metabolism in yeast cell-cycle-related oscillations via resource criticality and checkpoint gating

Letters in Biomathematics, 2018
We investigate the possibility that slow metabolic, cell-cycle-related oscillations in yeast and associated temporal clustering of cells within the cell cycle could be due to an interplay between near-critical metabolism and cell cycle checkpoints.
Luke Morgan, Gregory Moses, Todd R. Young   +2 more
doaj   +1 more source