Results 31 to 40 of about 1,557,993 (359)

DNA damage by mycotoxins [PDF]

Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis, 1999
Mycotoxins are toxic fungal metabolites which are structurally diverse, common contaminants of the ingredients of animal feed and human food. To date, mycotoxins with carcinogenic potency in experimental animal models include aflatoxins, sterigmatocystin, ochratoxin, fumonisins, zearalenone, and some Penicillium toxins.
John D. Groopman, Jia-Sheng Wang
openaire   +2 more sources

Decreased MCM2-6 in Drosophila S2 cells does not generate significant DNA damage or cause a marked increase in sensitivity to replication interference. [PDF]

, 2011
A reduction in the level of some MCM proteins in human cancer cells (MCM5 in U20S cells or MCM3 in Hela cells) causes a rapid increase in the level of DNA damage under normal conditions of cell proliferation and a loss of viability when the cells are ...
A Ibarra, A Woodward, C Tsao, Christelle de Renty, D Cortez, Deanna Koepp, E Dorn, G Crevel, G Crevel, G Crevel, Gilles Crevel, H Mahbubani, Isabelle Crevel, M Edwards, M Lei, M Oehlmann, M Pacek, R Burkhart, R Laskey, R Marton, S Donovan, S Forsburg, Sue Cotterill, T Takahashi, Thierry Gostan, Vincent Coulon, X Ge, X Michalet, Y Daigaku, Y Ishimi   +29 more
core   +9 more sources

Genetic Dissection of Budding Yeast PCNA Mutations Responsible for the Regulated Recruitment of Srs2 Helicase

mBio, 2023
DNA-damage tolerance (DDT) is a mechanism by which eukaryotes bypass replication-blocking lesions to resume DNA synthesis and maintain cell viability.
Li Fan, Wenqing Zhang, Josephine Rybchuk, Yu Luo, Wei Xiao   +4 more
doaj   +1 more source

RNase H enables efficient repair of R-loop induced DNA damage. [PDF]

, 2016
R-loops, three-stranded structures that form when transcripts hybridize to chromosomal DNA, are potent agents of genome instability. This instability has been explained by the ability of R-loops to induce DNA damage. Here, we show that persistent R-loops
Amon, Jeremy D, Koshland, Douglas
core   +1 more source

DNA Damage and DNA Damage Response in Chronic Myeloid Leukemia [PDF]

International Journal of Molecular Sciences, 2020
DNA damage and alterations in the DNA damage response (DDR) are critical sources of genetic instability that might be involved in BCR-ABL1 kinase-mediated blastic transformation of chronic myeloid leukemia (CML). Here, increased DNA damage is detected by γH2AX foci analysis in peripheral blood mononuclear cells (PBMCs) of de novo untreated chronic ...
Henning D. Popp, Vanessa Kohl, Nicole Naumann, Johanna Flach, Susanne Brendel, Helga Kleiner, Christel Weiss, Wolfgang Seifarth, Susanne Saussele, Wolf-Karsten Hofmann, Alice Fabarius   +10 more
openaire   +3 more sources

TDP2 promotes repair of topoisomerase I-mediated DNA damage in the absence of TDP1 [PDF]

, 2012
The abortive activity of topoisomerases can result in clastogenic and/or lethal DNA damage in which the topoisomerase is covalently linked to the 3'- or 5'-terminus of a DNA strand break. This type of DNA damage is implicated in chromosome translocations
Abhishek Sharma, Barthelmes, Danny Huylebroeck, Davies, Davies, El-Khamisy, El-Khamisy, El-Khamisy, El-Khamisy, Esguerra, Giovanella, Hirano, Hudson, Interthal, Interthal, Junko Murai, Katyal, Keith W. Caldecott, Ledesma, Liesbeth Vermeire, Lieve Umans, Limei Ju, Murai, Nitiss, Pommier, Pommier, Pype, Sherif F. El-Khamisy, Shunichi Takeda, Takashima, Varady, Vilotti, Yang, Yves Pommier, Zeng, Zhihong Zeng, Zhou   +36 more
core   +1 more source

PTPRK suppresses progression and chemo‐resistance of colon cancer cells via direct inhibition of pro‐oncogenic CD133

FEBS Open Bio, 2019
Receptor‐type protein tyrosine phosphatase κ (PTPRK) is considered to be a candidate tumor suppressor. PTPRK dephosphorylates CD133, which is a stem cell marker; phosphorylated CD133 accelerates xenograft tumor growth of colon cancer cells through the ...
Masashi Matsushita, Yusuke Mori, Kyosuke Uchiumi, Takehiro Ogata, Mizuyo Nakamura, Hiroyuki Yoda, Hiroaki Soda, Nobuhiro Takiguchi, Yoshihiro Nabeya, Osamu Shimozato, Toshinori Ozaki   +10 more
doaj   +1 more source

Radiation induced DNA damage responses [PDF]

, 2006
The amazing feature of ionising radiation (IR) as a DNA damaging agent is the range of lesions it induces. Such lesions include base damage, single strand breaks (SSBs), double strand breaks (DSBs) of varying complexity and DNA cross links.
Jeggo, Penny, Löbrich, Markus
core   +1 more source

The Similarities between Human Mitochondria and Bacteria in the Context of Structure, Genome, and Base Excision Repair System

Molecules, 2020
Mitochondria emerged from bacterial ancestors during endosymbiosis and are crucial for cellular processes such as energy production and homeostasis, stress responses, cell survival, and more.
Karolina Boguszewska, Michał Szewczuk, Julia Kaźmierczak-Barańska, Bolesław T. Karwowski   +3 more
doaj   +1 more source

TDP1 deficiency sensitizes human cells to base damage via distinct topoisomerase I and PARP mechanisms with potential applications for cancer therapy [PDF]

, 2013
Base damage and topoisomerase I (Top1)-linked DNA breaks are abundant forms of endogenous DNA breakage, contributing to hereditary ataxia and underlying the cytotoxicity of a wide range of anti-cancer agents.
Alagoz, Boyd, Breslin, Caldecott, Chen, Chiang, Ciccia, Dalhus, Das, Demple, Dungey, El-Khamisy, Fu, Godon, Hecht, Hegde, Hudson, Interthal, Interthal, Kato, Katyal, Kummar, Lebedeva, Lindahl, Lindahl, Liu, Loeb, Luo, Madhusudan, Meisenberg, Meryem Alagoz, Mohammed, Morland, Murai, Murai, Nilsen, Owen S. Wells, Pommier, Pourquier, Povirk, Ray Chaudhuri, Rydberg, Sherif F. El-Khamisy, Strom, Sultana, Takashima, Wilson, Xanthoudakis, Yang, Zeng, Zhou   +50 more
core   +1 more source