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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1989-11-17
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pubmed:abstractText |
The localisation of the radioiodinated Fab fragment of monoclonal antibody (Mab) 81C6, reactive with a glioma-associated extracellular matrix antigen, was studied in athymic mice bearing subcutaneous and intracranial xenografts of D-54 MG glioma cells. In vitro 81C6 Fab showed a marked loss of immunoreactivity and affinity for antigen compared to intact Mab 81C6. In vivo, the plasma half-life of 81C6 Fab was 7.0 hours compared to 2.1 days for 81C6. 81C6 Fab levels in tumours peaked at 2.6-3.8% injected dose/g in 2-6 h; Mab 81C6 reached 33.9% dose/g at 48 h. Localisation indices and tumour:tissue ratios were superior for Mab 81C6. Estimated radiation doses to tumour and normal tissues were lower for 131I-81C6 Fab than 131I-81C6. To realise the theoretical benefits of fragments as localising agents, Fab fragments of higher immunoreactivity and affinity, or bivalent F(ab')2 fragments are required.
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pubmed:grant | |
pubmed:commentsCorrections | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0268-8697
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
2
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
179-91
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3267302-Animals,
pubmed-meshheading:3267302-Antibodies, Monoclonal,
pubmed-meshheading:3267302-Brain Neoplasms,
pubmed-meshheading:3267302-Glioma,
pubmed-meshheading:3267302-Humans,
pubmed-meshheading:3267302-Immunoglobulin Fab Fragments,
pubmed-meshheading:3267302-Mice,
pubmed-meshheading:3267302-Mice, Nude,
pubmed-meshheading:3267302-Neoplasm Transplantation,
pubmed-meshheading:3267302-Radiation Dosage,
pubmed-meshheading:3267302-Radiotherapy,
pubmed-meshheading:3267302-Transplantation, Heterologous
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pubmed:year |
1988
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pubmed:articleTitle |
The localisation of radiolabelled murine monoclonal antibody 81C6 and its Fab fragment in human glioma xenografts in athymic mice.
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pubmed:affiliation |
Department of Pathology, Preuss Laboratory for Brain Tumor Research, Duke University Medical Center, Durham, North Carolina 27710.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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