A hereditary ovarian cancer family with rare pathogenic splicing mutation: Implications for variant interpretation
| Autor: | Ke Wang, Yanan Cheng, Yandong Cao, Yingnan Ye, Jinpu Yu, Lewen Bao |
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| Rok vydání: | 2021 |
| Předmět: |
Proband
Male Cancer Research RNA Splicing Biology medicine.disease_cause Frameshift mutation 03 medical and health sciences 0302 clinical medicine Genetics medicine Humans Family Genetic Predisposition to Disease Molecular Biology Gene Ovarian Neoplasms Mutation Base Sequence Microarray analysis techniques Alternative splicing Cancer Middle Aged medicine.disease Pedigree 030220 oncology & carcinogenesis RNA splicing Female |
| Zdroj: | Cancer genetics. |
| ISSN: | 2210-7762 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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