Linked Life Data

17497078

Source:http://linkedlifedata.com/resource/pubmed/id/17497078

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-9-12
pubmed:abstractText
Quantification of growth in experimental F98 and C6 rat brain tumours was performed on 51 rat brains, 17 of which have been further assessed by 3D tumour reconstruction. Brains were cryosliced and radio-labelled with a ligand of the peripheral type benzodiazepine-receptor (pBR), (3)H-Pk11195 [(1-(2-chlorophenyl)-N-methyl-N-(1-methyl-propylene)-3-isoquinoline-carboxamide)] by receptor autoradiography. Manually segmented and automatically registered tumours have been 3D-reconstructed for volumetric comparison on the basis of (3)H-Pk11195-based tumour recognition. Furthermore automatically computed areas of -300 microm inner (marginal) zone as well as 300 microm and 600 microm outer tumour space were quantified. These three different regions were transferred onto other adjacent slices that had been labelled by receptor autoradiography with the A(1) Adenosine receptor (A(1)AR)-ligand (3)H-CPFPX ((3)H-8-cyclopentyl-3-(3-fluorpropyl)-1-propylxanthine) for quantitative assessment of A(1)AR in the three different tumour zones. Hence, a method is described for quantifying various receptor protein systems in the tumour as well as in the marginal invasive zones around experimentally implanted rat brain tumours and their representation in the tumour microenvironment as well as in 3D space. Furthermore, a tool for automatically reading out radio-labelled rat brain slices from auto radiographic films was developed, reconstructed into a consistent 3D-tumour model and the zones around the tumour were visualized. A(1)AR expression was found to depend upon the tumour volume in C6 animals, but is independent on the time of tumour development. In F98 animals, a significant increase in A(1)AR receptor protein was found in the Peritumoural zone as a function of time of tumour development and tumour volume.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0167-594X
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
49-63
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Quantifying the A1AR distribution in peritumoural zones around experimental F98 and C6 rat brain tumours.
pubmed:affiliation
Institute of Neuroscience and Biophysics 3-Medicine, Research Centre Juelich, 52425 Juelich, Germany. m.dehnhardt@medac.de
pubmed:publicationType
Journal Article