Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1993-12-21
pubmed:abstractText
Evidence is provided that antitopoisomerase drugs induce chromosomal aberrations via the formation of DNA double strand breaks. Camptothecin, an inhibitor of DNA topoisomerase I, produced only chromatid-type aberrations, and in order to be effective it has to be present during the DNA replication. The fact that it induces chromosomal aberrations also in the G2 phase of the cell cycle suggests the presence of a residual DNA synthesis in this phase. A pretreatment with aphidicolin, an inhibitor of DNA polymerases, reduces the camptothecin induced aberrations in the G2 phase, confirming the need of DNA synthesis for the induction of aberrations by the inhibitor of DNA topoisomerase I.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0893-6692
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
275-7
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Mechanism of induction of chromosomal aberrations by inhibitors of DNA topoisomerases.
pubmed:affiliation
Dipartimento di Agrobiologia e Agrochimica, Università Degli Studi Della Tuscia, Viterbo, Italy.
pubmed:publicationType
Journal Article, Review