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GENE:

BRCA1 (Breast cancer 1, early onset)

i
Other names: BRCA1, BRCC1, PPP1R53, RNF53, Breast cancer 1, early onset
2d
An intriguing journey into the hereditary syndromes predisposing to endometrial cancer: more than believed. (PubMed, Ther Adv Med Oncol)
Genetics has been shown to affect several aspects of disease, including carcinogenesis, onset age, clinicopathological features, prognosis, and therapy response. In this review, we will investigate the impact of germline PVs in different genes on genetic susceptibility to the development of inherited EC, discussing the potential cancer risk in mutation carriers as well as prognostic implications and current therapeutic approaches, also evaluating the possibility of carrying out a more extensive routine genetic analysis for EC women, in order to increase the diagnostic power, improve prevention and surveillance strategies in genetically predisposed subjects, and implement tailored therapies.
Review • Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PTEN (Phosphatase and tensin homolog) • STK11 (Serine/threonine kinase 11) • POLE (DNA Polymerase Epsilon) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • PMS2 (PMS1 protein homolog 2) • POLD1 (DNA Polymerase Delta 1) • MUTYH (MutY homolog)
2d
Pembrolizumab and olaparib in homologous-recombination-deficient metastatic pancreatic cancer: the phase 2 POLAR trial. (PubMed, Nat Med)
These data suggest that a subset of HRD PC may derive prolonged benefit from PARP-ICB maintenance and support further development of biomarker-guided precision immunotherapy strategies in PC. ClinicalTrials.gov identifier: NCT04666740 .
P2 data • Journal • BRCA Biomarker • PARP Biomarker • PD(L)-1 Biomarker • IO biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • PALB2 (Partner and localizer of BRCA2)
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BRCA2 mutation • BRCA1 mutation • HRD • PALB2 mutation
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Keytruda (pembrolizumab) • Lynparza (olaparib)
2d
YTHDF3 facilitates DNA damage response by recognizing METTL3-mediated m6A modification to promote chemotherapy resistance in glioblastoma. (PubMed, Cancer Lett)
Following treatment with temozolomide (TMZ), the level of m6A modification was increased, facilitating YTHDF3-mediated DNA damage repair...Mechanistically, YTHDF3 recognizes the m6A binding site of DNA damage response genes (BRCA1, RAD51, RIF1 and 53BP1) and promotes their translation through m6A methylation, thereby initiating homologous recombination (HR) and nonhomologous end joining (NHEJ) repair to resist endogenous and exogenous DNA damage. Consequently, our study elucidates the crucial role of YTHDF3 in GBM and provides valuable insights into its significance in the DNA damage response and chemoresistance.
Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • RAD51 (RAD51 Homolog A) • RIF1 (Replication Timing Regulatory Factor 1) • TP53BP1 (Tumor Protein P53 Binding Protein 1) • METTL3 (Methyltransferase Like 3) • YTHDF3 (YTH N6-Methyladenosine RNA Binding Protein F3)
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temozolomide
2d
Real-World Study Assessing Characteristics and Treatment Patterns of Patients With Human Epidermal Growth Factor Receptor 2 Immunohistochemistry 0 and Human Epidermal Growth Factor Receptor 2-Low Stage IV Breast Cancer: A Multicenter Retrospective Study. (PubMed, JCO Precis Oncol)
Patient characteristics were similar between HER2-low and HER2 IHC 0 subgroups except for some differences in genetic alterations. Deterioration of PFS in later lines of therapy highlights a potential unmet need. Given the high patient attrition, the most effective treatments should be used as early as indicated as some patients may not proceed to subsequent lines of therapy.
Retrospective data • Journal • Real-world evidence • BRCA Biomarker
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HER-2 (Human epidermal growth factor receptor 2) • BRCA1 (Breast cancer 1, early onset) • PTEN (Phosphatase and tensin homolog)
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BRCA1 mutation • PTEN mutation
2d
Niraparib in Patients With Pancreatic Cancer (clinicaltrials.gov)
P2, N=32, Completed, Dana-Farber Cancer Institute | Active, not recruiting --> Completed
Trial completion
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • CHEK2 (Checkpoint kinase 2)
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BRCA2 mutation • BRCA1 mutation • ATM mutation • PALB2 mutation • CHEK2 mutation
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Zejula (niraparib)
3d
Challenging and Successful Therapy Decision-Making for AML Post Cytotoxic Therapy and Concomitant Active Breast Cancer - A Case Report and Experience-Driven Strategy. (PubMed, Breast Cancer (Dove Med Press))
In this case report, we describe the therapeutic success of intensive alloHCT in AML-pCT patient with active BC. The presented treatment approach for active BC and AML-pCT requires collaboration between oncologists and hematologists to ensure fast decision-making.
Journal
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BRCA1 (Breast cancer 1, early onset)
3d
A lasso-based model combining miRNA and clinical variables predicts future risk of breast and ovarian cancer. (PubMed, Sci Rep)
When the model was used to predict future onset of ovarian cancer directly, the AUC offered was AUC = 0.75 (95% CI 0.70-0.78). Together, these data suggest the proposed model is a predictor of future ovarian cancer risk.
Clinical • Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • BRCA (Breast cancer early onset)
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BRCA2 mutation • BRCA1 mutation
3d
Awareness and attitudes toward BRCA1/2 genetic testing among at-risk women in Egypt. (PubMed, Patient Educ Couns)
Integrating structured awareness programs into routine oncology and primary care practice may strengthen genetic literacy, promote informed decision-making, and encourage preventive health behaviors among women at hereditary risk, especially in low-resource settings.
Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset)
3d
Clinicopathological Characteristics of Lesions Diagnosed by MRI-Guided Biopsy in BRCA1/2 Mutation Carriers. (PubMed, Eur J Breast Health)
For new lesions categorized as breast imaging reporting and data system 3 on MRI, biopsy should be considered, particularly for BRCA1/2 carriers. Prospective studies are needed to validate these findings and assess long-term clinical outcomes to inform personalized management approaches for high-risk populations.
Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset)
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BRCA2 mutation • BRCA1 mutation
3d
Genetic testing for hereditary breast and ovarian cancer in the Murcian population using a comprehensive NGS panel. (PubMed, Fam Cancer)
This study confirms the importance of limiting HBOC genetic testing to clinically actionable genes in routine clinical practice. The re-evaluation and the prioritization of VUS are also essential, since they allow clinical laboratories to manage their resources more efficiently.
Journal • Next-generation sequencing • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • BRCA (Breast cancer early onset)
3d
Gastric epithelium from BRCA1 and BRCA2 carriers harbors increased double-stranded DNA damage and enhanced growth potential. (PubMed, Mol Cancer Res)
Taken together, these novel findings suggest that haploinsufficiency in BRCA1 and BRCA2 carriers may lead to DNA damage in the gastric epithelium, which may serve as an early event contributing to GC development. Implications: The elevated risk in GC for BRCA1 and BRCA2 PGV carriers may be due to haploinsufficiency and warrants further investigation into BRCA1 and BRCA2-associated GC.
Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset)
3d
Cancer genomic profiling predicts pathogenicity of BRCA1 and BRCA2 variants. (PubMed, medRxiv)
Applying these models to 1,073 BRCA1 and 1,639 BRCA2 VUS, we strengthened or enabled classification of 39.48% BRCA1 and 50.52% BRCA2 assessable variants. This approach transforms underutilized tumor profiling data into evidence that can be directly integrated into variant classification, providing a scalable framework for other tumor profiling datasets and cancer genes associated with defined tumor genomic features.
Journal • BRCA Biomarker
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BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency)
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HRD