Association of the ARLTS1 Cys148Arg variant with familial breast cancer risk

✍ Scribed by Bernd Frank; Kari Hemminki; Alfons Meindl; Barbara Wappenschmidt; Rüdiger Klaes; Rita K. Schmutzler; Michael Untch; Peter Bugert; Claus R. Bartram; Barbara Burwinkel

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: French
• Weight: 76 KB
• Volume: 118
• Category: Article
• ISSN: 0020-7136
• DOI: 10.1002/ijc.21687

✦ Synopsis

Abstract

Recently, ARLTS1 (ADP‐ribosylation factor‐like tumor suppressor gene 1) has been identified as a tumor suppressor gene, playing a major role in apoptotic signaling. The ARLTS1 Trp149Stop mutation has been shown to predispose to general familial cancer and high‐risk familial breast cancer (BC), provoking the attenuation of apoptotic function. We studied the impact of the ARLTS1 Pro131Leu and Cys148Arg variants on high‐risk familial and familial BC risk, investigating 482 familial BC cases (including 305 high‐risk cases) and 530 control individuals. Unlike ARLTS1 Pro131Leu, Cys148Arg revealed a significant association with an increased risk of high‐risk familial BC (odds ratio (OR) = 1.47, 95% confidence interval (95% CI) = 1.04–2.06, p = 0.03) in a dose‐dependent manner (p~trend~ = 0.007). The genotype distribution of Cys148Arg in familial cases was similar, indicating significance as well (OR = 1.48, 95% CI = 1.10–1.99, p = 0.009; p~trend~ = 0.003). On the basis of the small number of 46 cases, we additionally showed an association between the Trp149Stop mutation and an increased risk of bilateral BC (OR = 4.11, 95% CI = 1.27–13.31, p = 0.011). © 2005 Wiley‐Liss, Inc.