Division of Breast Surgery, Queen Mary and Tung Wah Hospital, The University of Hong Kong, Pokfulam, Hong Kong.
Fam Cancer. 2011 Jun;10(2):233-7. doi: 10.1007/s10689-011-9429-y.
Germline mutations in the two breast cancer susceptibility genes, BRCA1 and BRCA2 account for a significant portion of hereditary breast/ovarian cancer. De novo mutations such as multiple exon deletion are rarely occurred in BRCA1 and BRCA2. During our mutation screening for BRCA1/2 genes to Chinese women with risk factors for hereditary breast/ovarian cancer, we identified a novel germline mutation, consisting of a deletion from exons 1 to 12 in BRCA1 gene, in a patient diagnosed with early onset triple negative breast cancer with no family history of cancer. None of her parents carried the mutation and molecular analysis showed that this novel de novo germline mutation resulted in down-regulation of BRCA1 gene expression.
胚系突变在两个乳腺癌易感基因,BRCA1 和 BRCA2 中占遗传性乳腺癌/卵巢癌的很大一部分。BRCA1 和 BRCA2 中很少发生从头突变,如多个外显子缺失。在对有遗传性乳腺癌/卵巢癌风险因素的中国女性进行 BRCA1/2 基因突变筛查时,我们在一位早期三阴性乳腺癌患者中发现了一个新的胚系突变,该突变涉及 BRCA1 基因的 1 至 12 外显子缺失,该患者无癌症家族史。她的父母均未携带该突变,分子分析表明,这种新的从头胚系突变导致 BRCA1 基因表达下调。
Breast Cancer Res Treat. 2004-11
Breast Cancer Res Treat. 2009-5
Breast Cancer Res Treat. 2017-1
Breast Cancer Res Treat. 2009-8-1
Breast Care (Basel). 2023-10
Appl Clin Genet. 2023-5-11
Breast Cancer (Auckl). 2020-1-17
Clin Case Rep. 2017-1-28
Med J Islam Repub Iran. 2016-5-15
Breast Cancer Res Treat. 2010-7
World J Surg. 2010-7
Breast Cancer Res Treat. 2009-10
BMC Med Genet. 2008-7-2
Community Genet. 2007