Inflammation, DNA-centered radicals, and oxidative genotoxicity: The role of HOCl produced by myeloperoxidase in carcinogenesis [PDF]
, 2009 Myeloid cells (macrophages and neutrophils) infiltrate and synthesize myeloperoxidase (MPO) in sites of inflammation, producing gentotoxicity. In RAW 264.7 macrophages, bacterial lipopolysaccharide (LPS) induces superoxide radical anion, nuclear ...
Dario C. Ramirez +2 more
core +2 more sources
Carcinogenic adducts induce distinct DNA polymerase binding orientations [PDF]
, 2013 DNA polymerases must accurately replicate DNA to maintain genome integrity. Carcinogenic adducts, such as 2-aminofluorene (AF) and N-acetyl-2-aminofluorene (AAF), covalently bind DNA bases and promote mutagenesis near the adduct site.
Markiewicz, RP +3 more
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Targeted High Resolution LC/MS3 Adductomics Method for the Characterization of Endogenous DNA Damage
Frontiers in Chemistry, 2019 DNA can be damaged through covalent modifications of the nucleobases by endogenous processes. These modifications, commonly referred to as DNA adducts, can persist and may lead to mutations, and ultimately to the initiation of cancer.
Andrea Carrà +6 more
doaj +1 more source
Xeroderma Pigmentosum Group A Suppresses Mutagenesis Caused by Clustered Oxidative DNA Adducts in the Human Genome. [PDF]
PLoS ONE, 2015 Clustered DNA damage is defined as multiple sites of DNA damage within one or two helical turns of the duplex DNA. This complex damage is often formed by exposure of the genome to ionizing radiation and is difficult to repair. The mutagenic potential and
Akira Sassa +4 more
doaj +1 more source
MRE11 facilitates the removal of human topoisomerase II complexes from genomic DNA [PDF]
, 2012 Topoisomerase II creates a double-strand break intermediate with topoisomerase covalently coupled to the DNA via a 5'-phosphotyrosyl bond. These intermediate complexes can become cytotoxic protein-DNA adducts and DSB repair at these lesions requires ...
Austin, Caroline +10 more
core +3 more sources
Imidazopurinones are markers of physiological genomic damage linked to DNA instability and glyoxalase 1-associated tumour multidrug resistance [PDF]
, 2010 Glyoxal and methylglyoxal are reactive dicarbonyl metabolites formed and metabolized in physiological systems. Increased exposure to these dicarbonyls is linked to mutagenesis and cytotoxicity and enhanced dicarbonyl metabolism by overexpression of ...
Baynes +48 more
core +2 more sources
Ochratoxin A: In Utero Exposure in Mice Induces Adducts in Testicular DNA
Toxins, 2010 Ochratoxin A (OTA) is a nephrotoxin and carcinogen that is associated with Balkan endemic nephropathy and urinary tract tumors. OTA crosses the placenta and causes adducts in the liver and kidney DNA of newborns.
Jamie E. Jennings-Gee +5 more
doaj +1 more source
Dissociation Dynamics of XPC-RAD23B from Damaged DNA Is a Determining Factor of NER Efficiency. [PDF]
PLoS ONE, 2016 XPC-RAD23B (XPC) plays a critical role in human nucleotide excision repair (hNER) as this complex recognizes DNA adducts to initiate NER. To determine the mutagenic potential of structurally different bulky DNA damages, various studies have been ...
Benjamin Hilton +6 more
doaj +1 more source
Sperm DNA oxidative damage and DNA adducts [PDF]
Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 2015 The objective of this study was to investigate DNA damage and adducts in sperm from coke oven workers who have been exposed to polycyclic aromatic hydrocarbons. A longitudinal study was conducted with repeated measurements during spermatogenesis. Coke-oven workers (n=112) from a coke-oven plant served the PAH-exposed group, while administrators and ...
Jeng, Hueiwang Anna +3 more
openaire +4 more sources
Unusual DNA binding modes for metal anticancer complexes [PDF]
, 2009 DNA is believed to be the primary target for many metal-based drugs. For example, platinum-based anticancer drugs can form specific lesions on DNA that induce apoptosis.
Pizarro, Ana M., Sadler, P. J.
core +1 more source