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PMID: 4150653 Published · ppublish English Journal Article

Isoenzyme patterns in parenchymal and non-parenchymal cells isolated from regenerating and regenerated rat liver.

The Biochemical journal ·Vol. 136 ·No. 4 ·1973-12-00 ·Pages 947-54

Bonney RJ, Walker PR, Potter VR

Abstract

Parenchymal and non-parenchymal cells were isolated from adult rat liver that had been fully regenerated after a 70% partial hepatectomy. The characteristics of the parenchymal cell preparations from regenerated rat liver indicated that they were a homogeneous population and comparable with parenchymal cells isolated from intact liver. The parenchymal cells from regenerated adult rat liver contain glucokinase, hexokinase, pyruvate kinase type I and aldolase B. The non-parenchymal cells contain hexokinase, pyruvate kinase type III and aldolase B. When cells were isolated at different times of the day from rats on controlled feeding schedules, variation of tyrosine aminotransferase activity and liver glycogen content were observed in the parenchymal cells in keeping with the reported diurnal oscillations found in whole liver extracts. When parenchymal cells were isolated from rats 48 and 72h after partial hepatectomy, different isoenzyme patterns were observed. These cells appeared to synthesize pyruvate kinase type III, a function that was assigned previously to non-parenchymal cells or to foetal rat liver hepatocytes.

MeSH Terms
Animals Electrophoresis Fructose-Bisphosphate Aldolase/metabolism Glucokinase/metabolism Hepatectomy Hexokinase/metabolism Isoenzymes/metabolism Liver/cytology,embryology,enzymology Liver Glycogen/metabolism Liver Regeneration Male Pyruvate Kinase/metabolism Rats Time Factors Tyrosine Transaminase/metabolism
Chemicals
Isoenzymes Liver Glycogen Tyrosine Transaminase Hexokinase Glucokinase Pyruvate Kinase Fructose-Bisphosphate Aldolase
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Bonney R J
Walker P R
Potter V R
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30 references, click to expand
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Article Info
Journal
The Biochemical journal
Abbr.
Biochem J
ISSN
0264-6021
Published
1973-12-00
Pages
947-54
Language
English
Region
England
NLM ID
2984726R
PMCID
PMC1166044
Subset
IM
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