Unlabelled: Breast and ovarian cancer are common pathologies in women, with increasing incidences worldwide. In hereditary breast and ovarian cancer (HBOC) families, a large percentage of cases are attributable to hereditary factors compatibles with dominant autosomal transmission of a major tumour suppressor gene with incomplete penetrance. Screening for BRCA1 mutations is now standard practice for HBOC cases in western world, and permits medical follow-up and genetic counselling. Over 300 BRCA1 germinal mutations are stored in the Breast Cancer Information Core (BIC) mutation database.
Material And Methods: Estimates in different countries range from 5 to 15% the BRCA1 related cases of hereditary breast cancer due to copy number changes of one or more exons of this gene. Exon deletions and amplifications will usually not be detected by sequence analysis of the complete BRCA1 gene, therefore MLPA screening is needed.
Results: Here we describe Multiplex Ligation-dependent Probe Amplification technique (MLPA) implementation for BRCA1 large genomic rearrangements.
Conclusions: We did not detect any BRCA1 mutation by analysis of 15 HBOC recruited patients.
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