Cited by 54Genetics, Aging, and Longevity in Model OrganismsCarcinogens and Genotoxicity AssessmentDNA Repair Mechanisms

Transgenic mouse models for studying mutations in vivo: applications in aging research

Vijg, Jan, Dollé, Martijn E.T, Martus, Hans-Jörg, Boerrigter, Michael E.T.I·1997·Mechanisms of Ageing and Development

Abstract

To study mutation accumulation in the DNA of somatic cells and tissues during aging in vivo, a transgenic mouse model has been constructed. The model harbors plasmid vectors, containing the lacZ reporter gene, integrated head to tail at various chromosomal locations. Procedures have been worked out to efficiently recover the plasmids into E. coli host cells. A positive selection system, permitting only E. coli cells with a lacZ mutated plasmid to grow, allows for the accurate determination of mutation frequencies as the ratio of mutant colonies versus the total number of transformants, i.e., the total number of plasmid copies recovered. Results obtained from a life span study of plasmid mice with vector clusters on chromosome 3 and 4 indicated age-related mutation accumulation in the liver, but not in the brain. Comparison of the mutational spectra revealed a significantly larger proportion of large size-change mutations in liver than in brain.

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Crossref · 10.1016/s0047-6374(97)00107-3

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  • Few publications exist demonstrating repair in vivo, and they are hindered by targeting clinically irrelevant marker mutations in exogenously provided transgenes like GFP or LacZ.

    “Few publications exist demonstrating repair in vivo,39,40 and they are hindered by the fact that they target clinically irrelevant marker mutations in exogenously provided transgenes like green fluorescent protein (GFP) or LacZ.”

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Authors
Vijg, J., Dollé, M. E. T., Martus, H.-J., & Boerrigter, M. E. T. I.
Affiliations
  • Harvard University (US)
  • Beth Israel Deaconess Medical Center (US)
Corresponding author
Vijg, Jan
Venue
Mechanisms of Ageing and Development
Publisher
Elsevier BV
Published
1997-12
Volume
98
Issue
3
Pages
189-202
ISSN
0047-6374 (ISSN-L)
OpenAlex
W2006050173
Cited by
54
References
43
Citations by year
2020: 1 · 2016: 1 · 2015: 4 · 2014: 2 · 2012: 3
FWCI
1.19
Type
journal article
Language
en
Open access
closed
Locations
  • Mechanisms of Ageing and Development (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Naito Foundation
  • National Institutes of Health (1p30ag013314-01, 5p01ag010829-04)
  • National Institute on Aging (1P30AG13314-01, P01 1801 AG10829-01)
  • National Institute of Environmental Health Sciences (1 R01 ES/CA 08797-01)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
transgenic mouse model, somatic mutation accumulation, aging, lacZ reporter, positive selection, mutation frequency, mutational spectra, liver, brain, lifespan
MeSH terms
Aging, Animals, Mice, Transgenic, Models, Genetic, Mutation, Plasmids, Reproducibility of Results, Artifacts, Mice

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