A novel crosstalk between BRCA1 and sirtuin 1 in ovarian cancer

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A novel crosstalk between BRCA1 and sirtuin 1 in ovarian cancer

BRCA mutations are the main known hereditary factors for ovarian cancer. Notably, emerging evidence has led to considerable interest in the role of sirtuin 1 (SIRT1) in ovarian cancer development. However, dynamic crosstalk between BRCA1 and SIRT1 is poorly understood. Here, we showed that: (i) BRCA1 inactivation events (mutation, promoter methylation, or knockdown) were accompanied by decrease...

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Poly (ADP-ribose) polymerase 1 transcriptional regulation: A novel crosstalk between histone modification H3K9ac and ETS1 motif hypomethylation in BRCA1-mutated ovarian cancer

Poly (ADP-ribose) polymerase 1 (PARP1) plays a critical role in ovarian cancer progression. However, the epigenetic mechanism regulating PARP1 transcription remains largely unknown. Here, we show that the hypomethylated ETS1 motif is a key regulatory element for the PARP1 gene in BRCA1-mutated ovarian cancer. Mechanistically, the ETS1 motif hypomethylation-mediated increase of active histone ma...

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Germline mutations in the human breast cancer genes BRCA1 and BRCA2 account for a substantial proportion of familial, early-onset breast and ovarian cancers. The present study reports a novel disease-causing BRCA1 mutation, nucleotide 3020insCT/c.2901insCT, in a 55-year-old Spanish female with breast and ovarian cancer. This frameshift mutation creates a premature stop codon at amino acid 1000,...

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15 صفحه اول

Frequency of BRCA1 dysfunction in ovarian cancer.

BACKGROUND Ovarian cancer is one of the most common hereditary cancers in women. Mutations in the BRCA1 gene increase a woman's risk of ovarian cancer. Testing for BRCA1 mutations is cumbersome and impractical for large populations. Therefore, we developed an efficient strategy to detect various types of BRCA1 dysfunction and also determined the relative frequency of BRCA1 dysfunction in ovaria...

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ژورنال

عنوان ژورنال: Scientific Reports

سال: 2014

ISSN: 2045-2322

DOI: 10.1038/srep06666