Highlights
- •Rare pathogenic splicing mutation in BRCA1 gene.
- •A rare pathogenic splicing mutation found in FHOCs family.
Abstract
The BRCA1/2 gene is important for assessing the risk of familial/hereditary ovarian
cancer (OC). This case is a patient with OC, and two of her immediate family members
are cancer patients. We sequenced the coding and splicing regions of 42 OC susceptibility
genes, and found a rare pathogenic splicing mutation BRCA1:c.132C > T (p.cys44 =) in 2 patients. Although the mutation is synonymous, software prediction
and functional verification have shown that it affects alternative splicing and leads
to frameshift mutations (c.131_134del). Chromosome microarray analysis of the tissue
samples revealed the presence of a BRCA1 gene deletion with a fragment size of 1.42
Mb and an HRD score of 71. In addition, the proband showed a sensitive response to
platinum treatment. This case suggests the clinical significance of OC susceptibility
genes sequencing and HRD scoring in screening hereditary OC families.
Keywords
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Article info
Publication history
Published online: May 25, 2021
Accepted:
May 20,
2021
Received in revised form:
May 8,
2021
Received:
January 15,
2021
Identification
Copyright
© 2021 Elsevier Inc. All rights reserved.