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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1988-3-7
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pubmed:abstractText |
Osteoclast-rich cultures were prepared by disaggregation of osteoclastomas (giant cell tumour of bone) and settlement onto glass or plastic surfaces. Autoradiography using [125I]-salmon calcitonin ([125I]-sCT) revealed specific binding only to multinucleate giant cells (osteoclasts) and a minor population of mononuclear cells. [125I]-sCT competitive binding studies indicated a Kd of 5 x 10(-10) M and receptor number of approximately 1 million sites/osteoclast. sCT treatment resulted in a dose-dependent rise in cAMP (EC50 10(-10) M). Homogenates of an osteoclastoma also demonstrated specific binding of [125I]-sCT. Chemical cross-linking of a labelled synthetic sCT derivative. [125I]-[Arg11,18,Lys14]-sCT, using disuccinimidyl suberate, resulted in labelling of a receptor component of approximate Mr 85-90,000. The multinucleate giant cells (osteoclasts) of human osteoclastomas possess large number of CT receptors which exhibit the same binding kinetics and apparent Mr as those of other CT target cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0018-5043
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
19
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
585-9
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pubmed:dateRevised |
2009-2-19
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pubmed:meshHeading |
pubmed-meshheading:2828212-Bone Neoplasms,
pubmed-meshheading:2828212-Giant Cell Tumors,
pubmed-meshheading:2828212-Humans,
pubmed-meshheading:2828212-Microscopy, Phase-Contrast,
pubmed-meshheading:2828212-Molecular Weight,
pubmed-meshheading:2828212-Receptors, Calcitonin,
pubmed-meshheading:2828212-Receptors, Cell Surface,
pubmed-meshheading:2828212-Tumor Cells, Cultured
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pubmed:year |
1987
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pubmed:articleTitle |
Calcitonin receptors of human osteoclastoma.
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pubmed:affiliation |
University of Melbourne, Department of Medicine, Repatriation General Hospital, Heidelberg, Victoria, Australia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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