https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Prevalence of PALB2 mutations in Australian familial breast cancer cases and controls https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27356  G variant (rs152451) was significantly enriched in cases and may represent a low-penetrance polymorphism (p = 0.002; OR 1.24 (95 % CI 1.09–1.47). Conclusions: Our findings support truncating variants in PALB2 as high-penetrance breast cancer susceptibility alleles, and suggest that a common missense variant may also lead to a low level of increased breast cancer risk.]]> Wed 11 Apr 2018 17:01:50 AEST ]]> Reevaluation of the BRCA<sub>2</sub> truncating allele c.9976A > T (p.Lys3326Ter) in a familial breast cancer context https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22707 BRCA2, has a large number of genetic variants of unknown effect. The variant rs11571833, an A > T transversion in the final exon of the gene that leads to the creation of a stop codon 93 amino acids early (K3326*), is reported as a neutral polymorphism but there is some evidence to suggest an association with an increased risk of breast cancer. We assessed whether this variant was enriched in a cohort of breast cancer cases ascertained through familial cancer clinics compared to population-based non-cancer controls using a targeted sequencing approach. We identified the variant in 66/2634 (2.5%) cases and 33/1996 (1.65%) controls, indicating an enrichment in the breast cancer cases (p = 0.047, OR 1.53, 95% CI 1.00–2.34). This data is consistent with recent iCOGs data suggesting that this variant is not neutral with respect to breast cancer risk. rs11571833 may need to be included in SNP panels for evaluating breast cancer risk.]]> Wed 11 Apr 2018 09:55:17 AEST ]]> Panel testing for familial breast cancer: calibrating the tension between research and clinical care https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24890 Sat 24 Mar 2018 07:14:53 AEDT ]]> Reevaluation of RINT1 as a breast cancer predisposition gene https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23843 0.999) or in the number of variants predicted to be pathogenic by various in silico tools (Condel, Polyphen2, SIFT, and CADD) in the cases compared to the controls. In addition, there was no difference in the incidence of classic Lynch syndrome cancers in RINT1 rare variant-carrying families compared to RINT1 wild-type families. This study had 90 % power to detect an odds ratio of at least 2.06, and the results do not provide any support for RINT1 being a moderate-penetrance breast cancer susceptibility gene, although larger studies will be required to exclude more modest effects. This study emphasizes the need for caution before designating a cancer predisposition role for any gene based on very rare truncating variants and in silico-predicted missense variants.]]> Sat 24 Mar 2018 07:12:12 AEDT ]]>