Germline CDH1 mutations in bilateral lobular carcinoma in situ.

ABSTRACT:

Background

Invasive lobular breast cancer (ILC) and lobular carcinoma in situ (LCIS) are characterised by loss of E-cadherin expression. However germline CDH1 mutations are rare in cases of ILC with no family history of hereditary diffuse gastric cancer (HDGC) and have not been described in women with LCIS.

Methods

We screened the CDH1 gene in 50 cases of bilateral LCIS/ILC using Sanger sequencing and MLPA.

Results

Sanger sequencing revealed four pathogenic germline mutations, including a novel splicing mutation (c.48+1G>A). The remaining three (c.1465insC, c.1942G>T, c.2398delC) have been previously described. All four cases had bilateral LCIS +/- ILC and no family history of gastric cancer.

Conclusion

CDH1 germline mutations have not been previously described

SUBMITTER: Petridis C 

PROVIDER: S-EPMC3929874 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature