Screening for common mutations in BRCA1 and BRCA2 genes: interest in genetic testing of Tunisian families with breast and/or ovarian cancer

2014 ◽  
Vol 101 (11) ◽  
pp. E36-E40 ◽  
Author(s):  
Asma Fourati ◽  
Marie-Michèle Louchez ◽  
Joelle Fournier ◽  
Amor Gamoudi ◽  
Khaled Rahal ◽  
...  
2014 ◽  
Vol 39 (6) ◽  
pp. 8-10
Author(s):  
Cathy R. Kessenich ◽  
Kathryn Bacher ◽  
Patricia A. Moore

2002 ◽  
Vol 6 (2) ◽  
pp. 79-87 ◽  
Author(s):  
N. Hallowell ◽  
C. Foster ◽  
A. Ardern-Jones ◽  
R. Eeles ◽  
V. Murday ◽  
...  

2013 ◽  
Author(s):  
Nicolai Juul Birkbak ◽  
Bose Kochupurakkal ◽  
Jose MG Izarzugaza ◽  
Yang Li ◽  
Joyce Liu ◽  
...  

1999 ◽  
Author(s):  
J Papp ◽  
L Raicevic ◽  
J Milasin ◽  
B Dimitrijevic ◽  
S Radulovic ◽  
...  

2010 ◽  
Vol 20 (5) ◽  
pp. 704-716 ◽  
Author(s):  
Alison H. Trainer ◽  
Bettina Meiser ◽  
Kaaren Watts ◽  
Gillian Mitchell ◽  
Kathy Tucker ◽  
...  

Objectives:The presence of a germline BRCA mutation defines a genotype-specific group of women whose invasive ovarian cancer is associated with an increasingly well-defined prognostic and chemosensitivity biological profile. To determine the criteria that may be used to select patients for BRCA treatment-focused genetic testing, we performed a systemic literature search of studies that assessed BRCA1 and BRCA2 mutation frequency in women with ovarian cancer unselected for family history. The results are discussed with regard to the added clinical value gained by identifying a germline BRCA mutation at the time of the ovarian cancer diagnosis.Methods:BRCA-related studies were identified in the CD-ROM databases PubMed (including MEDLINE), PsychINFO, and CINAHL and included in the review if they met the following criteria: they (a) assessed mutation frequency in women with ovarian cancer who were unselected for family history and ethnicity, (b) were published in a peer-review journal, (c) between January 1997 and October 2009, and (d) in the English language.Results:Studies investigating the prevalence of BRCA1 or BRCA2 mutations in ovarian cancer patients unselected for family history or ethnicity have found a pathological BRCA mutation rate of approximately 3% to 17%. Without a significant family history, specific features that may be used to target treatment-focused BRCA testing in the ovarian cancer setting include young age at onset (<50 years), high-grade serous tumor histology, and specific ethnicity associated with known BRCA founder mutations.Conclusions:We believe that given the growing appreciation of the prognostic significance of BRCA mutations and the differential chemosensitivity shown by these tumors, as well as the potential of novel agents such as poly(ADP-ribose) polymerase inhibitors, the identification of a germline BRCA mutation concurrent with a new diagnosis of ovarian cancer will significantly impact on tailoring personalized ovarian management in the future.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 10513-10513
Author(s):  
R. Wenstrup ◽  
T. Judkins ◽  
K. Eliason ◽  
J. Schoenberger ◽  
S. Rajamani ◽  
...  

10513 Background: Mutations in the BRCA1 and BRCA2 genes are comprised of a majority of mutations that are detectable by sequence analysis, and a minority of large genomic deletion and duplication mutations that are detected by methods different than sequencing. Our laboratory developed and implemented a clinical assay for large rearrangements that we refer to as BART (BRCA1/2 Rearrangement Test). We validated the performance of BART using a completely anonymous large number of breast/ovarian cancer patient samples. We also demonstrated superior performance of BART versus other dosage-sensitive methods including Multiplex Ligation-dependent Probe Amplification (MLPA). Methods: BART utilizes quantitative endpoint polymerase chain reaction (PCR) in a multiplexed fluorescent format. Eleven multiplex PCR reactions were designed to contain two amplicons targeting the promoter region, all coding exons, and flanking regions of BRCA1 and BRCA2. An automated likelihood-based analysis application normalizes target amplicon copy number between BRCA1, BRCA2 and three control genes. Deletions and duplications are identified with a statistical confidence level. Results: Based on clinical and family history criteria, 1,035 patients were identified as severe-risk during the initial months of clinical BART analysis at Myriad Genetic Laboratories. All patients were initially tested for Comprehensive BRACAnalysis which includes BRCA1 and BRCA2 full gene sequencing plus large rearrangement panel testing for 5 recurrent BRCA1 mutations. Among severe-risk patients, 302 (29.2%) were positive for a BRCA1 or BRCA2 mutation by sequencing, 9 (0.9%) were positive by large rearrangement panel testing and an additional 27(2.6%) tested positive by BART for large genomic rearrangements. The total detection rate for deleterious mutations in severe-risk individuals was therefore 32.7%. Conclusions: Our initial clinical data indicate that BART testing is appropriate for high-risk patients identified on the basis of personal and family history criteria. No significant financial relationships to disclose.


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