| Carcinofetal alterations in glycogen phosphorylase isozymes in rat hepatomas. | |
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MedLine Citation:
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PMID: 173229 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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As part of a continuing study on the loss or retention of enzymes involved in specific hepatic functions in a series of rat liver neoplasms ranging widely in growth rate and degree of differentiation, isozyme patterns of glycogen phosphorylase in rat hepatomas were compared with those in rat tissues during development. A third phosphorylase isozyme, distinguishable kinetically, immunologically, electrophoretically, and by isoelectric focusing from liver and muscle types is commonly present in various rat hepatomas including Novikoff, Morris, and Yoshida hepatomas with various degrees of retention of liver type according to their degree of differentiation. This isozyme is also the sole type in the placenta and early embryo, and in liver and muscle is replaced with the organ specific liver and muscle types during development. In other organs, the replacement is only partial, and, especially in adult rat brain, this type is retained. Thus, this isozyme seems to be a prototype whose appearance in hepatomas is one of many examples of carcinofetal alterations in isozymes. |
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Authors:
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K Sato; T Sato; H P Morris; S Weinhouse |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Annals of the New York Academy of Sciences Volume: 259 ISSN: 0077-8923 ISO Abbreviation: Ann. N. Y. Acad. Sci. Publication Date: 1975 Aug |
Date Detail:
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Created Date: 1976-02-09 Completed Date: 1976-02-09 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7506858 Medline TA: Ann N Y Acad Sci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 273-86 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Carcinoma, Hepatocellular / enzymology* Electrophoresis, Disc Female Fetus / enzymology* Glycogen Synthase / metabolism Immunodiffusion Isoenzymes / immunology, metabolism* Liver / enzymology Liver Neoplasms Muscles / enzymology Neoplasms, Experimental / enzymology Organ Specificity Phosphorylases / immunology, metabolism* Pregnancy Rats |
| Chemical | |
Reg. No./Substance:
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0/Isoenzymes; EC 2.4.1.-/Phosphorylases; EC 2.4.1.11/Glycogen Synthase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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