Linked Life Data

1934193

Source:http://linkedlifedata.com/resource/pubmed/id/1934193

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1991-12-6
pubmed:abstractText
Cellular transport and metabolism of fatty acids are integral components of lipid metabolism, but the mechanisms and regulation involved are poorly understood. A variety of commercially available fluorescent analogs of fatty acids, are potentially useful probes for the study of lipid metabolism by such techniques as cell sorting and fluorescence microscopy. We have screened a series of fluorescent fatty acids to identify analogs that would reliably simulate the metabolic behavior of natural fatty acids; i.e., similar kinetics of transport, of intracellular movement, and of metabolic fate. The metabolic behavior of these analogs was compared with those of some naturally occurring fatty acids in HepG2 cells, which are a good model of some aspects of hepatic function. Fluorescent analogs containing polar fluorophores yielded the lowest rates of cellular uptake and conversion to acylated lipid products. Similarly, fluorescent analogs with the fluorophore located near the carboxylic acid group were poorly metabolized. Fatty acid analogs containing anthracene or pyrene at the n-terminus of the acyl chain were the most extensively incorporated into cellular lipids. The types and amounts of labeled lipid products formed from these analogs and from natural fatty acids were similar. Pyrene-labeled analogs have spectral properties that can be measured fluorometrically at very low concentrations. Therefore, we compared the cellular metabolism of 12-(1-pyrenyl)dodecanoic acid with those of palmitic and oleic acids.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0009-3084
pubmed:author
pubmed:issnType
Print
pubmed:volume
58
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
111-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:articleTitle
Effects of fluorophore structure and hydrophobicity on the uptake and metabolism of fluorescent lipid analogs.
pubmed:affiliation
Baylor College of Medicine, Houston, TX.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't