Publication Date:
2000-10-20
Description:
Triplex-forming oligonucleotides (TFOs) recognize and bind to specific duplex DNA sequences and have been used extensively to modify gene function in cells. Although germ line mutations can be incorporated by means of embryonic stem cell technology, little progress has been made toward introducing mutations in somatic cells of living organisms. Here we demonstrate that TFOs can induce mutations at specific genomic sites in somatic cells of adult mice. Mutation detection was facilitated by the use of transgenic mice bearing chromosomal copies of the supF and cII reporter genes. Mice treated with a supF-targeted TFO displayed about fivefold greater mutation frequencies in the supF gene compared with mice treated with a scrambled sequence control oligomer. No mutagenesis was detected in the control gene (cII) with either oligonucleotide. These results demonstrate that site-specific, TFO-directed genome modification can be accomplished in intact animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vasquez, K M -- Narayanan, L -- Glazer, P M -- CA64186/CA/NCI NIH HHS/ -- CA75723/CA/NCI NIH HHS/ -- F32 CA075723/CA/NCI NIH HHS/ -- GM54731/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):530-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Therapeutic Radiology and Genetics, Yale University School of Medicine, Boyer Center for Molecular Medicine, 295 Congress Avenue, New Haven, CT 06536, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039937" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Base Pair Mismatch
;
Base Sequence
;
DNA/chemistry/*genetics/metabolism
;
*Gene Targeting
;
Genes, Reporter
;
Genes, Suppressor
;
Mice
;
Mice, Inbred C57BL
;
Mice, Transgenic
;
Molecular Sequence Data
;
*Mutagenesis, Site-Directed
;
Mutation
;
Oligodeoxyribonucleotides/chemistry/*genetics/metabolism
;
RNA, Transfer/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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