Linked Life Data

19235202

Source:http://linkedlifedata.com/resource/pubmed/id/19235202

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-5-25
pubmed:abstractText
Using the nucleoside analogue EdU (5-ethynyl-2'-deoxyuridine) for thymidine substitution instead of BrdU (5-bromo-2'-deoxyuridine) in cell proliferation assays has recently been proposed. However, the effect of EdU on cell viability, DNA synthesis, and cell cycle progression and consequently its usability for dynamic cell proliferation analysis in vitro has not been explored. We compared the effect of EdU and BrdU incorporation into SK-BR-3 and BT474 breast cancer cells and the impact on cell cycle kinetics, cell viability, and DNA damage. We found that EdU can be used not only for pulse but also for continuous cell labeling and henceforth in high resolution EdU/Hoechst quenching assays. BrdU and EdU proliferation assays based on click chemistry revealed comparable results. However, cell viability of SK-BR-3 breast cancer cells was highly affected by long term exposure to EdU. Both SK-BR-3 as well as BT474 cells show cell cycle arrests upon long term EdU treatment whereas only SK-BR-3 cells were driven into necrotic cell death by long term exposure to EdU. In contrast BT474 cells appeared essentially unharmed by EdU treatment in terms of viability. Consequently using EdU enables highly sensitive and quantitative detection of proliferating cells and facilitates even continuous cell cycle assessment. Nevertheless, potential cellular susceptibility needs to be individually evaluated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1552-4930
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
535-46
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Cell type specific applicability of 5-ethynyl-2'-deoxyuridine (EdU) for dynamic proliferation assessment in flow cytometry.
pubmed:affiliation
Department of Obstetrics and Gynecology, University of Regensburg, Germany.
pubmed:publicationType
Journal Article, Comparative Study