Results 101 to 110 of about 247,162 (311)

SnapShot: Origins of DNA Replication

Cell, 2015
The fundamental unit of DNA replication, the replicon, is governed by a cis-acting replicator sequence and a trans-activating initiator factor. Despite the increased size and complexity of eukaryotic genomes, eukaryotic DNA replication continues to be guided by the fundamental principles and concepts established in the replicon model.
Creager, Rachel L., Li, Yulong, MacAlpine, David M.   +2 more
openaire   +2 more sources

A new class of disordered elements controls DNA replication through initiator self-assembly

eLife, 2019
The initiation of DNA replication in metazoans occurs at thousands of chromosomal sites known as origins. At each origin, the Origin Recognition Complex (ORC), Cdc6, and Cdt1 co-assemble to load the Mcm2-7 replicative helicase onto chromatin.
Matthew W Parker, Maren Bell, Mustafa Mir, Jonchee A Kao, Xavier Darzacq, Michael R Botchan, James M Berger   +6 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Human GINS, a conserved DNA replication factor and candidate cancer marker

, 2011
The GINS complex (a heterotetramer of Sld5, Psf1, Psf2 and Psf3) is a highly conserved DNA replication factor required for the initiation and elongation of DNA replication. GINS is believed to associate with Cdc45 and MCM proteins on replicating DNA. The

core   +1 more source

Replication enhancer elements within the open reading frame of tick-borne encephalitis virus and their evolution within the Flavivirus genus [PDF]

, 2011
We provide experimental evidence of a replication enhancer element (REE) within the capsid gene of tick-borne encephalitis virus (TBEV, genus Flavivirus).
I. M. Jones, Gould, EA, Tuplin, Andrew, Gould, E. A., A. Buckley, E. A. Gould, A. Tuplin, Tuplin, A., Jones, I. M., Jones, I. M. (Ian M.), Buckley, A., Gould, E., T. S. Gritsun, Jones, IM, Gritsun, T. S., Tuplin, A, Evans, DJ, Evans, David J., Gritsun, TS, D. J. Evans, Evans, D. J., Buckley, A   +21 more
core   +1 more source

Pervasive transcription fine-tunes replication origin activity

eLife, 2018
RNA polymerase (RNAPII) transcription occurs pervasively, raising the important question of its functional impact on other DNA-associated processes, including replication.
Tito Candelli, Julien Gros, Domenico Libri   +2 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

GNL3 regulates replication origin firing and protects stalled replication forks

, 2022
DNA replication by the replisome requires specific proteins that protect replication forks and so prevent the formation of DNA lesions that may damage the genome.
Constantinou, Angelos, Lebdy, Rana, Miotto, Benoit, Urbach, Serge, Patouillard, Julie, Basbous, Jihane, Ammar, Josiane, Ribeyre, Cyril, Cadoret, Jean-Charles, Canut, Marine, Letessier, Anne, Abou Merhi, Raghida   +11 more
core   +1 more source

Ciz1 cooperates with cyclin-A-CDK2 to activate mammalian DNA replication in vitro [PDF]

, 2010
Initiation of mammalian DNA replication can be reconstituted from isolated G1-phase nuclei and cell extracts, supplemented with cyclin-dependent protein kinases (CDKs).
Sercombe, Heather E, Ainscough, Justin F X, Coverley, Dawn, Copeland, Nikki A   +3 more
core  

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source