Linked Life Data

3021202

Source:http://linkedlifedata.com/resource/pubmed/id/3021202

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
1986-11-24
pubmed:abstractText
The U937 cell line is a monoblast-like cell line that can be induced to differentiate when treated with phorbol ester or a variety of other agents. Collagenase was detected in the media of U937 cell cultures after treatment with phorbol myristate acetate (PMA) at concentrations of 5 ng/mL or greater. In general, no collagenase was detected in the media of untreated cells. The induced collagenase cleaved native type I collagen into the 3/4 and 1/4-length fragments and showed the inhibition by ethylenediaminetetraacetic acid characteristic of the action of mammalian collagenases. Collagenase activity could be detected in the media of treated cells 12-18 h after the addition of PMA. Secretion of collagenase continued for 2-3 days after PMA addition. The production of collagenase by PMA-treated U937 cells was inhibited by actinomycin D and cycloheximide, suggesting that the induction of the enzyme is the result of de novo synthesis. The collagenase secreted by U937 cells induced with PMA has been purified 12-fold by using DEAE-Sephacel followed by wheat germ agglutinin-agarose chromatography. The apparent molecular mass of this U937 collagenase, determined by gel filtration chromatography on the partially purified enzyme, was 29-36 kilodaltons.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4750-7
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Induction of collagenase production in U937 cells by phorbol ester and partial purification of the induced enzyme.
pubmed:publicationType
Journal Article