Document Detail

Mechanism of tumor and liver concentration of 111In and 169Yb: 111In and 169Yb binding substances in tumor tissues and liver.
MedLine Citation:
PMID:  6214397     Owner:  NLM     Status:  MEDLINE    
Tumor-bearing animals were injected with 111In- and 169Yb-citrate. Tumor homogenates, from which the nuclear fraction was removed, and the mitochondrial fractions of the host livers were digested with pronase P. After digestion, the supernatants of the reaction mixtures were applied to Sephadex G-100 columns. The resultant eluates were analyzed for radioactivity, protein, uronic acid, and sialic acids. Three peaks of radioactivity were obtained by gel filtration. The first peak, eluted in the void volume, contained a species whose molecular weight exceeded 40 000. The second peak consisted of substances with molecular weights of 9400-40 000. Radioactivity in the third peak was liberated 111In and 169Yb. These two nuclides in the second peak were bound to acid mucopolysaccharides and/or the sulfated carbohydrate chain of sulfated glycoprotein. It was thought that the nuclides in the first peak might be bound to some acid mucopolysaccharides. The second peak nuclides seemed to be bound to acid mucopolysaccharide that contained no uronic acids, and/or to the sulfated carbohydrate chain of sulfated glycoprotein. It was concluded that they were bound to the acid mucopolysaccharides and/or the sulfated carbohydrate chain of sulfated glycoprotein in tumor tissues and liver lysosomes.
A Ando; I Ando; T Hiraki; M Takeshita; K Hisada
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of nuclear medicine     Volume:  7     ISSN:  0340-6997     ISO Abbreviation:  Eur J Nucl Med     Publication Date:  1982  
Date Detail:
Created Date:  1982-12-02     Completed Date:  1982-12-02     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7606882     Medline TA:  Eur J Nucl Med     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  298-303     Citation Subset:  IM    
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MeSH Terms
Binding Sites
Carcinoma, Ehrlich Tumor / analysis*
Chromatography, Gel
Glycoproteins / metabolism
Glycosaminoglycans / metabolism
Indium / diagnostic use*,  metabolism
Liver / analysis*
Liver Neoplasms, Experimental / analysis*
Neoplasm Proteins / metabolism
Radioisotopes / diagnostic use*
Sarcoma, Yoshida / analysis*
Ytterbium / diagnostic use*,  metabolism
Reg. No./Substance:
0/Glycoproteins; 0/Glycosaminoglycans; 0/Neoplasm Proteins; 0/Radioisotopes; 7440-64-4/Ytterbium; 7440-74-6/Indium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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