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Published in: Familial Cancer 3/2013

01-09-2013 | Original Article

The risk of gastric cancer in carriers of CHEK2 mutations

Authors: Urszula Teodorczyk, Cezary Cybulski, Dominika Wokołorczyk, Anna Jakubowska, Teresa Starzyńska, Małgorzata Ławniczak, Paweł Domagała, Katarzyna Ferenc, Krzysztof Marlicz, Zbigniew Banaszkiewicz, Rafał Wiśniowski, Steven A. Narod, Jan Lubiński

Published in: Familial Cancer | Issue 3/2013

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Abstract

CHEK2 is a tumor suppressor gene whose functions are central to the induction of cell cycle arrest and apoptosis following DNA damage. Mutations in CHEK2 have been associated with cancers at many sites, including breast and prostate cancers, but the relationship between CHEK2 and gastric cancer has not been extensively studied. In Poland, there are four known founder alleles of CHEK2; three alleles are protein truncating (1100delC, IVS2G>A, del5395) and the other is a missense variant (I157T). We examined the frequencies of four Polish founder mutations in the CHEK2 gene in 658 unselected gastric cancer patients, in 154 familial gastric cancer patients and in 8,302 controls. A CHEK2 mutation was seen in 57 of 658 (8.7 %) unselected patients with gastric cancer compared to 480 of 8,302 (5.8 %) controls (OR 1.6, p = 0.004). A CHEK2 mutation was present in 19 of 154 (12.3 %) familial cases (OR = 2.3, p = 0.001). The odds ratio for early onset (<50 years) gastric cancer was higher (2.1, p = 0.01), than for cases diagnosed at age of 50 or above (OR 1.4, p = 0.05). Truncating mutations of CHEK2 were associated with higher risk (OR = 2.1, p = 0.02) than the missense mutation I157T (OR = 1.4, p = 0.04). CHEK2 mutations predispose to gastric cancer, in particular to young-onset cases.
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Metadata
Title
The risk of gastric cancer in carriers of CHEK2 mutations
Authors
Urszula Teodorczyk
Cezary Cybulski
Dominika Wokołorczyk
Anna Jakubowska
Teresa Starzyńska
Małgorzata Ławniczak
Paweł Domagała
Katarzyna Ferenc
Krzysztof Marlicz
Zbigniew Banaszkiewicz
Rafał Wiśniowski
Steven A. Narod
Jan Lubiński
Publication date
01-09-2013
Publisher
Springer Netherlands
Published in
Familial Cancer / Issue 3/2013
Print ISSN: 1389-9600
Electronic ISSN: 1573-7292
DOI
https://doi.org/10.1007/s10689-012-9599-2

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