Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1987-4-15
pubmed:abstractText
Exposure of MCF-7 human mammary carcinoma cells to 12-O-tetradecanoylphorbol-13-acetate (TPA) results in changes in cell morphology and arrest of cell growth. The inhibition of cell proliferation and the increase in cell volume are concentration dependent; these effects are reversible upon removal of the tumor promoting agent. Electron microscopic studies reveal that TPA increases endoplasmic reticulum and induces the appearance of secretory granules. MCF-7 cells treated by TPA therefore present morphological characteristics of secretory cells. These effects of TPA on MCF-7 cells are accompanied by specific disruption of cell cycle events, a block of cells in G1 at the expense of S base, and a delayed passage through G2. Studies in which a cell cycle lock in G1 is produced by tamoxifen show that exposure of such cells to PA produces cell morphological changes and an inability to progress through the cell cycle when estradiol is added.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1615-20
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Influence of 12-O-tetradecanoylphorbol-13-acetate on proliferation and maturation of human breast carcinoma cells (MCF-7): relationship to cell cycle events.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't