Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1998-5-13
|
pubmed:abstractText |
The role of p53 in DNA repair and cell cycle checkpoint after ultraviolet irradiation was investigated in an embryonic stem cell line homozygous for a targeted deletion of p53. Results indicate that loss of p53 does not alter the capacity of ES cells to respond to DNA damage. Wild-type and p53-deficient cells showed similar cessation of DNA synthesis after UV damage and similar ultimate capacity to repair a transiently transfected reporter plasmid. Interestingly, in the absence of DNA damaging treatment, the transit of p53-deficient cells through S phase was slower than wild-type cells. We suggest that this may result from the absence of a p53-dependent response to endogenous DNA damage: without p53 sensing endogenous damage leading to immediate repair, such damage may persist and thus delay DNA synthesis.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0014-5793
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
3
|
pubmed:volume |
425
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
499-504
|
pubmed:dateRevised |
2008-11-21
|
pubmed:meshHeading |
pubmed-meshheading:9563521-Animals,
pubmed-meshheading:9563521-Cell Cycle,
pubmed-meshheading:9563521-Chloramphenicol O-Acetyltransferase,
pubmed-meshheading:9563521-DNA Damage,
pubmed-meshheading:9563521-DNA Repair,
pubmed-meshheading:9563521-DNA Replication,
pubmed-meshheading:9563521-Flow Cytometry,
pubmed-meshheading:9563521-Gene Deletion,
pubmed-meshheading:9563521-Genes, Reporter,
pubmed-meshheading:9563521-Interphase,
pubmed-meshheading:9563521-Mice,
pubmed-meshheading:9563521-S Phase,
pubmed-meshheading:9563521-Stem Cells,
pubmed-meshheading:9563521-Transcriptional Activation,
pubmed-meshheading:9563521-Tumor Suppressor Protein p53,
pubmed-meshheading:9563521-Ultraviolet Rays
|
pubmed:year |
1998
|
pubmed:articleTitle |
p53-independent DNA repair and cell cycle arrest in embryonic stem cells.
|
pubmed:affiliation |
Cancer Research Campaign Laboratories, University Department of Pathology, Medical School, Edinburgh, Scotland, UK.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|