Open Access

A mutation in POLE predisposing to a multi-tumour phenotype

  • Authors:
    • Anna Rohlin
    • Theofanis Zagoras
    • Staffan Nilsson
    • Ulf Lundstam
    • Jan Wahlström
    • Leif Hultén
    • Tommy Martinsson
    • Göran B. Karlsson
    • Margareta Nordling
  • View Affiliations

  • Published online on: April 29, 2014     https://doi.org/10.3892/ijo.2014.2410
  • Pages: 77-81
  • Copyright: © Rohlin et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Somatic mutations in the POLE gene encoding the catalytic subunit of DNA polymerase ε have been found in sporadic colorectal cancers (CRCs) and are most likely of importance in tumour development and/or progression. Recently, families with dominantly inherited colorectal adenomas and colorectal cancer were shown to have a causative heterozygous germline mutation in the proofreading exonuclease domain of POLE. The highly penetrant mutation was associated with predisposition to CRC only and no extra‑colonic tumours were observed. We have identified a mutation in a large family in which the carriers not only developed CRC, they also demonstrate a highly penetrant predisposition to extra-intestinal tumours such as ovarian, endometrial and brain tumours. The mutation, NM_006231.2:c.1089C>A, p.Asn363Lys, also located in the proofreading exonuclease domain is directly involved in DNA binding. Theoretical prediction of the amino acid substitution suggests a profound effect of the substrate binding capability and a more severe impairment of the catalytic activity compared to the previously reported germline mutation. A possible genotype to phenotype correlation for deleterious mutations in POLE might exist that needs to be considered in the follow-up of mutation carriers.
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July-2014
Volume 45 Issue 1

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Rohlin A, Zagoras T, Nilsson S, Lundstam U, Wahlström J, Hultén L, Martinsson T, Karlsson GB and Nordling M: A mutation in POLE predisposing to a multi-tumour phenotype. Int J Oncol 45: 77-81, 2014
APA
Rohlin, A., Zagoras, T., Nilsson, S., Lundstam, U., Wahlström, J., Hultén, L. ... Nordling, M. (2014). A mutation in POLE predisposing to a multi-tumour phenotype. International Journal of Oncology, 45, 77-81. https://doi.org/10.3892/ijo.2014.2410
MLA
Rohlin, A., Zagoras, T., Nilsson, S., Lundstam, U., Wahlström, J., Hultén, L., Martinsson, T., Karlsson, G. B., Nordling, M."A mutation in POLE predisposing to a multi-tumour phenotype". International Journal of Oncology 45.1 (2014): 77-81.
Chicago
Rohlin, A., Zagoras, T., Nilsson, S., Lundstam, U., Wahlström, J., Hultén, L., Martinsson, T., Karlsson, G. B., Nordling, M."A mutation in POLE predisposing to a multi-tumour phenotype". International Journal of Oncology 45, no. 1 (2014): 77-81. https://doi.org/10.3892/ijo.2014.2410