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RecQ helicases and topoisomerase III in cancer and aging

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Abstract

RecQ helicases have in recent years attracted increasing attention due to the important roles they play in maintaining genomic integrity, which is essential for the life of a cell and the survival of a species. Humans with mutations in RecQ homologues are cancer prone and suffer from premature aging. A great effort has therefore been made to understand the molecular mechanisms and the biological pathways, in which RecQ helicases are involved. It has become clear that these enzymes work in close concert with DNA topoisomerase III, and studies in both yeast and mammalian systems point to a role of the proteins in processes involving homologous recombination. In this review we discuss the genetic and biochemical evidence for possible functions of RecQ helicases and DNA topoisomerase III in multiple cellular processes such as DNA recombination, DNA replication, and cell cycle checkpoint control.

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  1. Department of Molecular Biology, Aarhus University, C.F. Møllers Allé, Bldg. 130, 8000, Aarhus-C, Denmark

    Louise V. Laursen & Anni H. Andersen

  2. Department of Molecular Biology, University of Geneva, 30, Quai Ernest Ansernet, 1211, Geneva 4, Switzerland

    Lotte Bjergbaek

  3. Genome Damage and Stability Centre, University of Sussex, Falmer, Brighton, BN1 9QG, UK

    Johanne M. Murray

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  1. Louise V. Laursen
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  2. Lotte Bjergbaek
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Laursen, L.V., Bjergbaek, L., Murray, J.M. et al. RecQ helicases and topoisomerase III in cancer and aging. Biogerontology 4, 275–287 (2003). https://doi.org/10.1023/A:1026218513772

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