Linked Life Data

3558489

Source:http://linkedlifedata.com/resource/pubmed/id/3558489

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-5-8
pubmed:abstractText
Oxidized LDL (o-LDL) is toxic to a variety of cultured cells. Preliminary results suggested that susceptibility is enhanced by cell proliferation. As a step toward determining the mechanism of cytotoxicity, we chose to identify the cell cycle phase(s) during which exposure of cultured human fibroblasts to o-LDL leads to death. Cytochalasin B, which blocks cell migration and proliferation, and irradiation, which prevents mitosis but not migration, both blocked cytotoxicity. Colchicine, which arrests cells in mitosis but does not inhibit DNA synthesis, did not block cytotoxicity. Treatment of cells with hydroxyurea, which blocks cells prior to S phase, prevented cell death. Addition of o-LDL to cells immediately after S phase allowed mitosis without death. The above results coupled with results using cells synchronized by three different means indicate that cell death is selective for proliferating cells and occurs after exposure to o-LDL during S phase. Understanding the mechanism of o-LDL-induced death may have implications for tissue damage in vivo in the numerous instances of pathology in which oxidized lipoproteins or lipids are present.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0021-9541
pubmed:author
pubmed:issnType
Print
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
311-20
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Toxicity of oxidized low-density lipoprotein to cultured fibroblasts is selective for S phase of the cell cycle.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't