Linked Life Data

6987495

Source:http://linkedlifedata.com/resource/pubmed/id/6987495

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1980-5-23
pubmed:abstractText
A rapid procedure for measuring unscheduled DNA synthesis has been studied in detail. Human fibroblasts were brought into the non-dividing state by either growing to confluence or starvation for arginine. Residual semi-conservative synthesis was abolished by hydroxyurea. Hydroxyurea-resistant DNA synthesis which was induced by irradiation and chemical mutagens was presumed to represent repair synthesis and provided a very rapid semi-quantitative procedure for its measurement. Problems were encountered, however, when comparing the quantitative response of different cell strains. The variability between experiments was quite large, and we found that the level of repair synthesis depended not only on the mutagen and the genotype of the cell, but also on physiological factors. This led to some anomalous results. The system was able to detect with ease the large defects in UV-induced repair synthesis in fibroblasts from patients with xeroderma pigmentosum (XP) but it would probably not easily detect less than a 50% reduction in the level of repair synthesis. By extension of this procedure, in combination with cell fusion induced by polyethylene glycol, we have developed a method for carrying out genetic complementation of XP fibroblasts, which does not entail the use of either Sendai virus or of autoradiography. Results of complementation analysis of 4 XP cell strains are presented.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0027-5107
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
177-90
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
A rapid procedure for measurement of DNA repair in human fibroblasts and for complementation analysis of xeroderma pigmentosum cells.
pubmed:publicationType
Journal Article