Linked Life Data

2452633

Source:http://linkedlifedata.com/resource/pubmed/id/2452633

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-6-3
pubmed:abstractText
The action of Pseudomonas aeruginosa cytotoxin on isolated pancreatic acini was investigated. The release of amylase and serine protease zymogens from the isolated rat pancreatic acini was induced with increasing amounts of cytotoxin in vitro. The stimulated release of amylase reached 30% of total cellular content with 100 micrograms/mL of the purified cytotoxin. The induced release of amylase, trypsinogen, proelastase, and chymotrypsinogen reached the maximum after 75 minutes of incubation while lactate dehydrogenase began to appear after 15 minutes of incubation with a secondary biphasic increase at 75 min of incubation. The concentrations of acinar mRNAs of amylase, trypsinogen, proelastase, and chymotrypsinogen, as measured by dot-blot hybridization with the cloned cDNAs of amylase, trypsinogen I, proelastase II, and chymotrypsinogen B of the rat, decreased with time and were significantly lower than in the untreated acini. It is concluded that cytotoxin stimulates the release of amylase and protease zymogens with a concomitant increase in membrane permeability and a decrease of cellular mRNA levels. The inhibition of gene expression is attributable merely to a generalized toxic effect upon cellular metabolism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
152
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
688-94
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Pseudomonas aeruginosa cytotoxin stimulates secretion of amylase and protease zymogens with a concomitant decrease of mRNA levels in isolated rat pancreatic acini.
pubmed:affiliation
Department of Medicine, Veterans Administration Medical Center, Martinez, CA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.