Linked Life Data

11305588

Source:http://linkedlifedata.com/resource/pubmed/id/11305588

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-4-17
pubmed:abstractText
A highly sensitive ELISA for the determination of (s)-9-dimethylaminomethyl-10-hydroxy-camptothecin (topotecan) capable of measuring as low as 80 pg/ml was developed. Anti-topotecan antibody was obtained by immunizing rabbits with topotecan conjugated with bovine serum albumin using diazotized m-aminobenzoic acid as a cross-linker. Enzyme labeling of topotecan with beta-D-galactosidase was performed by utilizing another cross-linker, N-(4-diazophenyl)maleimide. The specificity of this ELISA appears to be primarily toward the lactone moiety of topotecan, showing a very slight cross-reactivity with the lactone opened-ring of topotecan. The values for the topotecan concentrations detected using this assay were comparable with those detected using HPLC. There was a good correlation between the values determined by the two methods. These findings suggest that this ELISA can detect the natural amounts of the lactone form. Using this assay, drug levels were easily determined in the blood and urine of rats for 5 h after i.v. administration of topotecan at a single dose of 1 mg/kg. The sensitivity and specificity of the ELISA should provide a useful tool for developing pharmacokinetic and pharmacodynamic studies of topotecan.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0918-6158
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
321-6
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Determination of topotecan by ELISA.
pubmed:affiliation
Faculty of Hospital Pharmacy, Saga Medical School, Japan. saita@post.saga-med.ac.jp
pubmed:publicationType
Journal Article