Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-9-3
pubmed:abstractText
The effect of D-penicillamine on metallothionein mRNA accumulation was examined in mouse tissues by Northern and dot blot analysis. This drug was given as a single intraperitoneal dose of 250 mg/kg body weight and the metallothionein mRNA content of the tissues was measured 1, 4, 8 and 24 hours later. A detectable increase of mRNA was observed after 1 hour and maximal accumulation was seen after 4 hours in the liver, kidneys, lungs, brain and spleen, whereas in the heart the maximum occurred after 8 hours. In the liver metallothionein mRNA was increased 14.5-fold over the control and in the kidneys it was increased by a factor of 9.2. A significant increase was also seen in the lungs, where it was 10 fold. To determine whether the increase is due to new transcription of the metallothionein gene, animals were pretreated with actinomycin D (1.0 mg/kg body weight) before receiving D-penicillamine. Actinomycin D prevented some of the D-penicillamine-induced increase in metallothionein mRNA, indicating that the drug, to some extent, acts at the transcriptional level. Regulation of metallothionein gene expression may play an important role in the molecular mechanisms involved in the clinical action of D-penicillamine in rheumatoid arthritis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0931-2838
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
43-7
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Metallothionein gene expression in mouse tissues by D-penicillamine.
pubmed:affiliation
Institute of Environmental Hygiene, Department of Toxicology, Düsseldorf, Fed. Rep. of Germany.
pubmed:publicationType
Journal Article