Linked Life Data

1034617

Source:http://linkedlifedata.com/resource/pubmed/id/1034617

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1977-3-15
pubmed:abstractText
When added to Eagle's Minimum Essential Medium supplemented with 10% bovine serum (MEM-10BS), 1mM cysteine was highly toxic to cultured cells. This toxicity was eliminated by (a) preincubation of the medium at 37 degrees C for 24 hr before use, or (b) presence of 5mM pyruvate. Similar results were obtained with freshly prepared CMRL 1066 supplemented with 10% bovine serum (CMRL-10BS), which contains 1.5 mM cysteine as an original ingredient. Medium L 15 supplemented with 10% bovine serum (L-10BS), which contains both 1 mM cysteine and 5 mM pyruvate, supported cell growth. On incubation of MEM-10BS supplemented with 1 mM cysteine (MEM-10BS-1CySH) or CMRL-10BS without cells for one day, the cysteine concentrations decreased to about one-tenth or less of the original concentrations. The cysteine concentration in L-10BS did not decrease so much on similar incubation. Pyruvate reduced the rate of disappearance of the cysteine in MEM-10BS-1CySH or CMRL-10BS as assayed with p-chloromercuribenzoate, although less than that in L-10BS. This effect of pyruvate was concentration dependent. These paradoxical effects of pyruvate on cysteine, i.e. the reduction of its cytotoxicity and the stabilization as an SH compound, are probably due to the formation of a dissociable complex between these two compounds, which is not cytotoxic and resistant to oxidation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0073-5655
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
635-8
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Cytotoxicity of cysteine in culture media.
pubmed:publicationType
Journal Article, In Vitro