Linked Life Data

1170022

Source:http://linkedlifedata.com/resource/pubmed/id/1170022

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1975-10-8
pubmed:abstractText
A thermosensitive line (TS 111) was isolated from a suspension culture of Chinese hamster fibroblasts, using a BUdR suicide selection technique. In this line, cytokinesis is blocked at 39 degrees C. DNA and protein synthesis are not arrested but keep on at a steady rate. Giant cells are produced which accumulate either numerous nuclei or one big nucleus with several nucleoli and more than a hundred chromosomes. At each nuclear cycle, all the chromosomes in the cell appear to condense in a synchronous manner, although it is possible that not all the sets of chromosomes duplicate. When the culture is returned to the permissive temperature (34 degrees C) after a prolonged arrest at the restrictive temperature, cytokinesis resumes with early extrusion of karyoplasts from multinucleated cells. The division block is independent of cell density in suspension culture and is not prevented by cell contact when cells grow attached to Petri dishes. At 34 degrees C, a residual expression of the mutation is indicated by the presence of binucleate and up to 30% anucleate cells. A remarkable similarity and some synergism exists between the mutation and cytochalasin B effects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
123-9
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Temperature-sensitive cell cycle mutants: a chinese hamster cell line with a reversible block in cytokinesis.
pubmed:publicationType
Journal Article