Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Delshanee Kotandeniya"'
Publikováno v:
Journal of Chromatography B. 1007:121-126
A liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI+-MS/MS) method for the analysis of the tobacco-specific carcinogens N′-nitrosonornicotine (NNN) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL) and their gl
Autor:
Delshanee Kotandeniya, Yuk Y. Sham, Natalia Y. Tretyakova, Molly P Andersen, Zoe M. Koerperich, Jenna Fernandez, Christopher L. Seiler, Megin E. Nguyen
A precise balance of DNA methylation and demethylation is required for epigenetic control of cell identity, development, and growth. DNA methylation marks are introduced by de novo DNA methyltransferases DNMT3a/b and are maintained throughout cell di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00f90f177b12cc01ba000722a84df7f3
https://europepmc.org/articles/PMC6310613/
https://europepmc.org/articles/PMC6310613/
Autor:
Sharon E. Murphy, Elizabeth A. Thompson, Makenzie E. Pillsbury, Benjamin W. S. Ransom, Steven G. Carmella, Delshanee Kotandeniya, Menglan Chen, Rachel Isaksson Vogel, Dorothy K. Hatsukami, Stephen S. Hecht
Publikováno v:
Nicotine & Tobacco Research. 17:704-709
Electronic cigarettes (e-cigarettes) are rapidly increasing in popularity but little information is available on their potential toxic or carcinogenic effects.Twenty-eight e-cigarette smokers who had not smoked tobacco cigarettes for at least 2 month
Autor:
Allison M. Land, Jason B. Nikas, Duncan E. Donohue, Rebecca M. McDougle, Emily K. Law, Brandon Leonard, Nuri A. Temiz, Anurag Rathore, Natalia Y. Tretyakova, Michael B. Burns, Delshanee Kotandeniya, Michael A. Carpenter, Douglas Yee, Eric W. Refsland, William L. Brown, Reuben S. Harris, Lela Lackey
Publikováno v:
Nature. 494:366-370
Several mutations are required for cancer development, and genome sequencing has revealed that many cancers, including breast cancer, have somatic mutation spectra dominated by C-to-T transitions. Most of these mutations occur at hydrolytically disfa
Autor:
Natalia Y. Tretyakova, Delshanee Kotandeniya, Uthpala Seneviratne, Daniel P Murphy, Anthony E. Pegg, Rebecca Guza, Sreenivas Kanugula
Publikováno v:
Chemical Research in Toxicology. 24:1966-1975
O(6)-POB-dG (O(6)-[4-oxo-4-(3-pyridyl)but-1-yl]deoxyguanosine) are promutagenic nucleobase adducts that arise from DNA alkylation by metabolically activated tobacco-specific nitrosamines such as 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) an
Autor:
Margarita Kessler, Zachary P. Fredin, Matthew S. Platz, Laura Pickard, James S. Poole, Kent S. Gates, Elisa Levya Guerrero, Goutam Chowdhury, Christopher M. Hadad, Delshanee Kotandeniya
Publikováno v:
Photochemistry and Photobiology. 75:339-345
The absorption and fluorescence spectra of 3-aminobenzo-1,2,4-triazine di-N-oxide (tirapazamine) have been recorded and exhibit a dependence on solvent that correlates with the Dimroth ET30 parameter. Time-dependent density functional theory calculat
Autor:
Pramod Upadhyaya, Peter W. Villalta, Stephen S. Hecht, Adam T. Zarth, Delshanee Kotandeniya, Irina Stepanov, Bin Ma
Publikováno v:
Chemical Research in Toxicology
The tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK, 1) is a potent lung carcinogen in laboratory animals and is believed to play a key role in the development of lung cancer in smokers. Metabolic activation of NNK le
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 12:2325-2329
Tirapazamine is a bioreductively activated DNA-damaging agent that selectively kills the hypoxic cells found in solid tumors. In this work, base excision repair enzymes were used to provide evidence that tirapazamine causes significant amounts of dam
Autor:
George M. Giambaşu, Shana J. Sturla, Thakshila Dissanayake, Roger Jones, Ryszard Jankowiak, Natalia Y. Tretyakova, Rahul R. Lad, Robert H. E. Hudson, Filip Wojciechowski, Chen Lin, Delshanee Kotandeniya, Shantu Amin, Rebecca Guza, Kristopher Murphy, Darrin M. York
Publikováno v:
Nucleic Acids Research
Nucleic Acids Research, 39 (9)
Nucleic Acids Research, 39 (9)
Endogenous 5-methylcytosine ((Me)C) residues are found at all CG dinucleotides of the p53 tumor suppressor gene, including the mutational 'hotspots' for smoking induced lung cancer. (Me)C enhances the reactivity of its base paired guanine towards car
Publikováno v:
Chemical research in toxicology. 17(11)
The compound 3-amino-2-quinoxalinecarbonitrile 1,4-dioxide (4) displays potent hypoxia-selective cytotoxicity in cell culture. This compound is structurally similar to the known hypoxia-selective DNA-damaging agent tirapazamine (1, TPZ), but the abil