ArticleMolecular genetics & genomic medicine2020
BRCA2 c.8827C>T pathogenic mutation in a consanguineous Chinese family with hereditary breast cancer.
Article in Molecular genetics & genomic medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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- BRCA2 c.8827C>T pathogenic mutation in a consanguineous Chinese family with hereditary breast cancer.Molecular genetics & genomic medicine · 2020Article
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4 authors at 1 institution in 1 country.
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Abstract
backgroundMutations in the BRCA2 DNA repair associated gene (BRCA2) are associated with the development of breast cancer, with different ethnic mutations at different sites. Based on different types of BRCA2 variants, the underlying mechanism remains still elusive.
methodsNext-generation sequencing (NGS) was performed to detect germ line mutations in BRCA2. The expressions of BRCA2 mRNA and BRCA2 protein were detected by Real-time PCR and Western blot, respectively.
resultsIn a consanguineous Chinese family with hereditary breast cancer, one woman had unilateral breast cancer, two women had bilateral asynchronous breast cancer, and one man had prostate cancer. We identified a mutation site (NM_000059.4: c.8827C>T, NP_ 000050.3: p.(Gln2943*)) in BRCA2 gene, which was a nonsense mutation that predicted disrupting peptide chain synthesis and limiting BRCA2 protein production, validated by the decreased expressions of both BRCA2 mRNA and BRCA2 protein.
conclusionIn this study, we identified a BRCA2 c.8827C>T nonsense mutation with a truncated BRCA2 protein in a consanguineous Chinese Han family, suggesting individuals with this mutation should be regularly screened for malignancies such as breast, prostate, and ovarian cancer. Our study verified the function of this BRCA2 mutation site and provided a new target for the precise treatment of such patients.
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