Document Detail

Cell density dependent morphological changes in adult rat hepatocytes during primary culture.
MedLine Citation:
PMID:  3056629     Owner:  NLM     Status:  MEDLINE    
In order to gain morphological insights about the cell density dependency, hepatocytes cultured at a low cell density (less than about 0.1 X 10(5) nuclei (cm2)-1) and at a high cell density (greater than about 1 X 10(5) nuclei (cm2)-1) were examined ultrastructurally 24 h after plating (just prior to the beginning of DNA synthesis). The results were as follows: (i) glycogen rosettes disappeared completely in low density culture as compared with sections from an intact liver. In contrast, glycogen rosettes were still present in high density culture. (ii) Polysomes seemed increased in low density culture in comparison with those seen in sections from an intact liver and from the high density culture. (iii) In low density culture, the shape of mitochondria deviated from that of hepatocytes in an intact liver and the mitochondria often lost a characteristic close contact with rough endoplasmic reticulum (rough ER). (iv) In low density culture, bundles of filamentous structure were detected, which were not found in an intact liver or high density culture. The following features were found only in high density culture; (v) numerous villous cytoplasmic protrusions developed along the area facing adjacent cells, and seemed to intertwine with each other, and (vi) between the hepatocytes, only abortive junctions were found. These results indicate that the hepatocytes cultured at a low density express most of the characteristics of the hepatocytes in a regenerating liver and the features of the cells cultured at a high density are very similar to those of the hepatocytes in sections from an intact liver.
T Koji; P K Nakane; M Murakoshi; K Watanabe; H Terayama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell biochemistry and function     Volume:  6     ISSN:  0263-6484     ISO Abbreviation:  Cell Biochem. Funct.     Publication Date:  1988 Oct 
Date Detail:
Created Date:  1989-01-03     Completed Date:  1989-01-03     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8305874     Medline TA:  Cell Biochem Funct     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  237-43     Citation Subset:  IM    
Department of Cell Biology, Tokai University School of Medicine, Kanagawa, Japan.
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MeSH Terms
Cell Count
Cells, Cultured
DNA / biosynthesis
Liver / cytology,  metabolism,  ultrastructure*
Microscopy, Electron
Microscopy, Phase-Contrast
Rats, Inbred Strains
Reg. No./Substance:

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