Specific chromosome aberrations in senescent fibroblast cell lines derived from human embryos - PubMed (original) (raw)
- PMID: 984042
- PMCID: PMC1685103
Specific chromosome aberrations in senescent fibroblast cell lines derived from human embryos
P A Benn. Am J Hum Genet. 1976 Sep.
Abstract
In senescent fibroblast cell lines derived from human embryos, the number of chromosome aberrations were found to increase rapidly. In addition to an increase in aneuploidy and polyploidy, a high frequency of dicentrics occurred, but the number of other chromosome abnormalities remained approximately constant. Banding revealed that many of the dicentrics appeared to be end-to-end fusions of whole chromosomes. The involvement of chromosomes was nonrandom. This "telomeric binding" may reflect a progressive decrease in the stability of telomeric sequences or associated enzymes which may also occur in vivo.
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