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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3-4
|
pubmed:dateCreated |
1984-2-24
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pubmed:abstractText |
The amount of cell-surface sialic acid found in the material released by trypsin from chick fibroblasts rose markedly from day 8 to day 16 of embryo development. The rise seemed to result from two processes: increased sialylation of N-linked carbohydrate chains, and enhancement of the amount of O-linked structures. Eight-day cells were more quickly detached from the substrate than 16-day cells, since in 8-day fibroblasts detachment of half the adherent cells only required 10 min, compared to 20 min in 16-day fibroblasts. Re-adhesion to the substrate was also faster for the younger fibroblasts, and 40% of the 8-day trypsin-treated cells re-adhered within 30 min compared to about 3 h for the same proportion of 16-day cells. The age-dependent differences in the amount of cell-surface sialic acid do not account for the differences in the adhesive capacity of embryo cells. The fact that neuraminidase did not affect cell detachment or re-adhesion indicates that cell-surface sialic acid does not play an important part in the adhesive capacity of embryo fibroblasts.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0047-6374
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
23
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
307-14
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6656314-Age Factors,
pubmed-meshheading:6656314-Animals,
pubmed-meshheading:6656314-Cell Adhesion,
pubmed-meshheading:6656314-Cells, Cultured,
pubmed-meshheading:6656314-Chick Embryo,
pubmed-meshheading:6656314-Glycoproteins,
pubmed-meshheading:6656314-Sialic Acids,
pubmed-meshheading:6656314-Trypsin
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pubmed:articleTitle |
Changes in cell-surface sialic acid content during chick embryo development.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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