Advanced Microscopy Techniques Used for Comparison of UVA- and gamma-Irradiation-Induced DNA Damage in the Cell Nucleus and Nucleolus
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F14%3A00435966" target="_blank" >RIV/68081707:_____/14:00435966 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11110/14:10285724
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Advanced Microscopy Techniques Used for Comparison of UVA- and gamma-Irradiation-Induced DNA Damage in the Cell Nucleus and Nucleolus
Popis výsledku v původním jazyce
Every day, genomes are affected by genotoxic factors that create multiple DNA lesions. Several DNA repair systems have evolved to counteract the deleterious effects of DNA damage. These systems include a set of DNA repair mechanisms, damage tolerance processes, and activation of cell-cycle checkpoints. This study describes selected confocal microscopy techniques that investigate DNA damage-related nuclear events after UVA- and gamma-irradiation and compare the DNA damage response (DDR) induced by the two experimental approaches. In both cases, we observed induction of the nucleotide excision repair (NER) pathway and formation of localized double-strand breaks (DSBs). This was confirmed by analysis of cyclobutane pyrimidine dimers (CPDs) in the DNA lesions and by increased levels of gamma H2AX and 53BP1 proteins in the irradiated genome. DNA damage by UVA-lasers was potentiated by either BrdU or Hoechst 33342 pre-sensitization and compared to non-photosensitized cells.
Název v anglickém jazyce
Advanced Microscopy Techniques Used for Comparison of UVA- and gamma-Irradiation-Induced DNA Damage in the Cell Nucleus and Nucleolus
Popis výsledku anglicky
Every day, genomes are affected by genotoxic factors that create multiple DNA lesions. Several DNA repair systems have evolved to counteract the deleterious effects of DNA damage. These systems include a set of DNA repair mechanisms, damage tolerance processes, and activation of cell-cycle checkpoints. This study describes selected confocal microscopy techniques that investigate DNA damage-related nuclear events after UVA- and gamma-irradiation and compare the DNA damage response (DDR) induced by the two experimental approaches. In both cases, we observed induction of the nucleotide excision repair (NER) pathway and formation of localized double-strand breaks (DSBs). This was confirmed by analysis of cyclobutane pyrimidine dimers (CPDs) in the DNA lesions and by increased levels of gamma H2AX and 53BP1 proteins in the irradiated genome. DNA damage by UVA-lasers was potentiated by either BrdU or Hoechst 33342 pre-sensitization and compared to non-photosensitized cells.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BO - Biofyzika
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Folia Biologica
ISSN
0015-5500
e-ISSN
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Svazek periodika
60
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
9
Strana od-do
76-84
Kód UT WoS článku
000343275800013
EID výsledku v databázi Scopus
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