rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
1997-4-4
|
pubmed:abstractText |
The role of reactive oxygen species (ROS) generated by hypoxanthine/xanthine oxidase (HX/XO) in the induction of apoptosis was studied in the human fibroblast cell line WI38. Apoptosis but not necrosis was observed in proliferating fibroblasts after 48 h incubation with 1 mM HX and 0.05 U/ml XO. Induction of apoptosis was hindered by catalase. Cell-cycle analysis revealed a reduction of cells in the S/G2 phase 24 and 48 h after stimulation, suggesting that ROS induce a G1 arrest in proliferating fibroblasts. This was supported by an accumulation of p53 and the cdk inhibitor p21WAF1/CIP1. Since apoptosis was not inducible in senescent fibroblasts our data indicate that ROS mainly induces apoptosis in proliferating cells.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0014-5793
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
3
|
pubmed:volume |
404
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
6-10
|
pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9074626-Apoptosis,
pubmed-meshheading:9074626-Cell Aging,
pubmed-meshheading:9074626-Cell Division,
pubmed-meshheading:9074626-Cell Line,
pubmed-meshheading:9074626-Cyclin-Dependent Kinase Inhibitor p21,
pubmed-meshheading:9074626-Cyclins,
pubmed-meshheading:9074626-Dose-Response Relationship, Drug,
pubmed-meshheading:9074626-Fibroblasts,
pubmed-meshheading:9074626-G1 Phase,
pubmed-meshheading:9074626-Humans,
pubmed-meshheading:9074626-Reactive Oxygen Species,
pubmed-meshheading:9074626-Tumor Suppressor Protein p53
|
pubmed:year |
1997
|
pubmed:articleTitle |
The induction of apoptosis in proliferating human fibroblasts by oxygen radicals is associated with a p53- and p21WAF1CIP1 induction.
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pubmed:affiliation |
Department of General Surgery, University of Ulm, Germany.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|