Linked Life Data

19968287

Source:http://linkedlifedata.com/resource/pubmed/id/19968287

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-1-8
pubmed:abstractText
We report the radiosynthesis and evaluation of 3-[3,5-dimethyl-4-(4-[11C]methylpiperazinecarbonyl)-1H-pyrrol-2-ylmethylene]-2-oxo-2,3-dihydro-1H-indole-5-sulfonic acid (3-chlorophenyl)methylamide, termed [11C]SU11274 ([11C]14) for in vivo imaging of mesenchymal-epithelial transition (MET) receptor by positron emission tomography (PET). Following the synthesis of the precursor (13) that was achieved in 10 steps with a total yield of 9.7%, [11C]14 was obtained through radiomethylation in a range of 5-10% radiochemical yield and over 95% radiochemical purity. For in vivo PET studies, two human lung cancer xenograft models were established using MET-positive NCI-H1975 and MET-negative NCI-H520 cell lines. Quantitative [11C]14-PET studies showed that the tumor uptake of [11C]14 in the NCI-H1975 xenografts was significantly higher than that in the NCI-H520 xenografts, which is consistent with their corresponding immunohistochemical tissue staining patterns of MET receptors from the same animals. These studies demonstrated that [11C]14-PET is an appropriate imaging marker for quantification of MET receptor in vivo, which can facilitate efficacy evaluation in the clinical development of MET-targeted cancer therapeutics.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1520-4804
pubmed:author
pubmed:issnType
Electronic
pubmed:day
14
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
139-46
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
In vivo positron emission tomography (PET) imaging of mesenchymal-epithelial transition (MET) receptor.
pubmed:affiliation
Division of Radiopharmaceutical Science, Case Center for Imaging Research, Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural